WaterFurnace 500 WSHP Geothermal Heat Pump Instruction Manual

500 WSHP Geothermal Heat Pump

Versatec 500 0.75-6 Ton Installation Manual

Formerly Envision2 Compact Commercial 60 Hz Water Source/Geothermal Heat Pump
· R-410A Refrigerant · Commercial 0.75-6 Ton
Installation Information Water Piping Connections Hot Water Connections Electrical Startup Procedures Troubleshooting Preventive Maintenance
IM1022ANA 01/22

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Installing Horizontal Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hanger Bracket Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 System Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Open Loop Ground Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Hot Water Generator Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Freeze Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Wiring Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Unit Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Reference Calculations and Legend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Refrigerant Circuit Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Compressor and Thermistor Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Heat of Extraction/Rejection Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Preventive Maintenance and Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 Revision Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Model Nomenclature

1-2 3 4-6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21-22 23 NB V 048 T L 0 0 0 C A N A N 1 A 3 0 SS *

Model Type NB ­ Envision2 Compact
Cabinet Configuration V ­ Vertical H – Horizontal
Unit Capacity (MBTUH) Single Speed 009, 012, 015, 018, 024, 030 036, 042, 048, 060, 070 Dual-Capacity 026, 038, 049, 064, 072
Discharge Configuration T ­ Top (Vertical) E ­ End (Horizontal) S ­ Side (Horizontal)
Return Air Configuration L ­ Left R ­ Right
Voltage 0 ­ 208-230/60/1 2 ­ 265-277/60/1 (009-038) 3 ­ 208-230/60/3 (024-072) 4 ­ 460/60/3 (024-072) 5 ­ 575/60/3 (PSC Only 042-070)
Refrigeration Option 0 ­ None 2 ­ HWG Only w/o Pump (Vertical 018-072) G ­ Hot Gas Bypass (015-072) R ­ Hot Gas Reheat (015-072) B ­ Hot Gas Bypass w/Hot Gas Reheat (015-072)
Blower Option 0 ­ PSC Blower (Single Speed Only) 1 ­ Variable Speed ECM Blower (015-072) 2 ­ High Static Variable Speed ECM Blower (036, 038, 042, 048, 049) 3 ­ High Static PSC Blower (024-048) 4 ­ 5-Speed ECM Blower (015-072) 6 ­ Variable Speed Constant Torque ECM Blower (009-012)
Water Coil Option C ­ Copper D ­ Insulated Copper N ­ CuproNickel P ­ Insulated CuproNickel
Sound Kit Option A ­ None B ­ Sound Kit
Note:
1 – Phase G uard O nly Available on 208-230/60/3, 460/60/3, and 575/60/3. 2 ­ Waterside economizer option must be ordered with stainless steel drain pan and either 5-speed ECM or variable speed ECM (024-072). 3 ­ Control Option not available with PSC Motor.

Vintage * ­ Factory Use Only
Non-Standard Option SS ­ Standard
Drain Pan Option 0 ­ Composite, No Secondary Connection 1 ­ Composite, Secondary Connection 2 ­ Stainless Steel, No Secondary Connection 3 ­ Stainless Steel, Secondary Connection
Air Coil Option 3 ­ All-Aluminum, Uncoated 4 ­ All-Aluminum, AlumiSealTM
Filter Option A ­ MERV 4 B ­ MERV 13
Cabinet Option 0 ­ Unpainted Cabinet, Filter Rail 1 ­ Painted Cabinet, Filter Rail 2 ­ Unpainted Cabinet, 4-Sided Filter Rack 3 ­ Painted Cabinet, 4-Sided Filter Rack
Electrical Option1 N ­ None A ­ IntelliStart® Only E ­ IntelliStart and Disconnect P ­ Phase Guard, No Disconnect B ­ Phase Guard, Disconnect D ­ No Phase Guard, Disconnect
Control Option A ­ AuroraTM Base Control (ABC) C ­ AuroraTM Advanced Control3 D ­ AuroraTM Advanced Control & Refrigeration3 E ­ AuroraTM UPC DDC Controler F ­ AuroraTM UPC DDC Controler with LON G ­ AuroraTM UPC DDC Controler Advanced Control3 H ­ AuroraTM UPC DDC Controler Advanced Control & Refrigeration3 J ­ AuroraTM UPC DDC Controler w/ LON Advanced Control3 K ­ AuroraTM UPC DDC Controler w/ LON Advanced Control & Refrigeration3
Water Control Option2 N ­ None R ­ Water Flow Regulator V ­ 2-Way Valve B ­ 2-Way Valve w/ Water Flow Regulator W ­ Waterside Economizer S ­ Waterside Economizer w/ Water Flow Regulator E ­ Waterside Economizer w/ 2-Way Valve C ­ Waterside Economizer w/ 2-Way Valve & Water Flow Regulator

Note: See separate manual for economizer option

4

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

General Installation Information

Safety Considerations
WARNING: Before performing service or maintenance operations on a system, turn off main power switches to the indoor unit. If applicable, turn off the accessory heater power switch. Electrical shock could cause personal injury.
Installing and servicing heating and air conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair or service heating and air conditioning equipment. Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on heating and air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing operations and have a fire extinguisher available.

Unit Location Locate the unit in an indoor area that allows for easy removal of the filter and access panels. Location should have enough space for service personnel to perform maintenance or repair. Provide sufficient room to make water, electrical and duct connection(s). If the unit is located in a confined space, such as a closet, provisions must be made for return air to freely enter the space by means of a louvered door, etc. Any access panel screws that would be difficult to remove after the unit is installed should be removed prior to setting the unit. On horizontal units, allow adequate room below the unit for a condensate drain trap and do not locate the unit above supply piping. Care should be taken when units are located in unconditioned spaces to prevent damage from frozen water lines and excessive heat that could damage electrical components.
Installing Vertical Units
Prior to setting the unit in place, remove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket.

Moving and Storage
Move units in the normal “up” orientation. Horizontal units may be moved and stored per the information on the packaging. Do not stack more than three units in total height. Vertical units may be stored one upon another to a maximum height of two units. Do not attempt to move units while stacked. When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates and cartons have been received. Examine units for shipping damage, removing the units from the packaging if necessary. Units in question should also be internally inspected. If any damage is noted, the carrier should make the proper notation on the delivery receipt, acknowledging the damage.

Vertical units are available in left or right air return configurations. Top flow vertical units should be mounted level on a vibration absorbing pad slightly larger than the base to provide isolation between the unit and the floor. It is not necessary to anchor the unit to the floor (see figure below).
Vertical Unit Mounting

2 in. PEX Foam

5

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Vertical Dimensional Data

Standard filter rails for open return applications

Field installed duct flange

A

N

R

Q

Deluxe filter rack for ductable return applications

A

S

N

Air coil

Q

ACCESS PANEL

AIR COIL SIDE

AIR COIL SIDE

BP

4

G

3

FRONT

F

1.4 in (3.5 cm)

Top View – Right Return

M

M

Air coil

PB

4
FRONT 3

2′ (61 cm) Alternate Service Access G

F 1.4 in (3.5 cm)

Top View – Left Return

2′ (61 cm)

Service Access Left Return

(Right Return opposite side)

Air coil

Isometric View – Left Return

U

T

W

ACCESS PANEL

C
H E D

1.6 in (4.1 cm)

Condensate 3/4 in
PVC glue socket 1.6 in (4.1 cm)

5

6

2

8

1

Power supply 1 in (25.4 mm)
knockout

Low voltage

1/2″ (12.7 mm)

knockout

LJ

LK

Front View – Right Return

ACCESS PANEL

Condensate 3/4 in PVC glue socket

1.6 in (4.1 cm)

5

8

2

7

1

C
1.6 in (4.1 cm)
H E D

Front View – Left Return

V

6

ACCESS

8

PANEL

8

JL

7

Right View – Right Return Left View – Left Return

KL

6

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Vertical Dimensional Data cont.

Overall Cabinet

Vertical

1

Models

A

B

C

D

Width Depth Height*

In

in. 22.5

22.2

30.2

2.6

009-012

cm. 57.2

56.4

76.7

6.6

015-018 in.

22.5

26.2

40.2

2.6

cm. 57.2

66.5

102.1

6.6

in. 22.5

26.2

44.2

2.6

024-030

cm. 57.2

66.5

112.3

6.6

in. 25.5

31.2

44.2

2.6

036-038

cm. 64.8

79.2

112.3

6.6

in. 25.5

31.2

48.2

2.6

042-049

cm. 64.8

79.2

122.4

6.6

in. 25.5

31.2

52.2

2.6

060-072

cm. 64.8

79.2

132.6

6.6

Water Connections

Electrical Knockouts

6

7

8

2

3

4

5

J

K

L

E

F

G

H

Loop

Knockout

1/2 in. cond

1/2 in. cond

1 in. cond

Out

HWG In HWG Out

Condensate

Water HWG

Low

Low Power

FPT Provisions Voltage Voltage Supply

7.6

N/A

N/A

10.8

1/2 in.

N/A

9.4

5.4

7.4

19.3

N/A

N/A

27.4 12.7 mm N/A

23.9

13.7

18.8

7.6

1.4

4.4

10.8

3/4 in. 0.875

10.1

6.1

8.1

19.3

3.6

11.2

27.4 19.1 mm 22.2 mm 25.7

15.5

20.6

7.6

1.4

4.4

10.8

3/4 in. 0.875

10.1

6.1

8.1

19.3

3.6

11.2

27.4 19.1 mm 22.2 mm 25.7

15.5

20.6

7.6

1.4

4.4

10.8

1 in.

0.875

10.1

6.1

8.1

19.3

3.6

11.2

27.4 25.4 mm 22.2 mm 25.7

15.5

20.6

7.6

1.4

4.4

10.8

1 in.

0.875

10.1

6.1

8.1

19.3

3.6

11.2

27.4 25.4 mm 22.2 mm 25.7

15.5

20.6

7.6

1.4

4.4

10.8

1 in.

0.875

10.1

6.1

8.1

19.3

3.6

11.2

27.4 25.4 mm 22.2 mm 25.7

15.5

20.6

3/16/12

Discharge Connection

duct flange installed (±0.10 in)

Vertical Models

M

N

P

Q

R

S

Filter Rack Supply

Supply

Width

Width

Depth

**Return Connection using deluxe filter rack (±0.10 in)

T

U

V

Return Depth

Return Height

in.

2.2

10.0

10.0

6.1

5.3

9.8

2.0

18.1

14.0

009-012

cm.

5.6

25.4

25.4

15.5

13.5

24.9

5.1

46.0

35.6

in.

2.2

14.0

14.0

6.1

4.5

7.7

2.0

22.1

22.0

015-018

cm.

5.6

35.6

35.6

15.5

11.4

19.6

5.1

56.1

55.9

in.

2.2

14.0

14.0

6.1

4.5

7.7

2.0

22.1

26.1

024-030

cm.

5.6

35.6

35.6

15.5

11.4

19.6

5.1

56.1

66.3

in.

2.2

18.0

18.0

6.6

4.6

6.3

1.6

28.1

26.1

036-038

cm.

5.6

45.7

45.7

16.8

11.7

16.0

4.1

71.4

66.3

in.

2.2

18.0

18.0

6.6

4.6

6.3

1.6

28.1

30.0

042-049

cm.

5.6

45.7

45.7

16.8

11.7

16.0

4.1

71.4

76.2

060-072 in.

2.2

18.0

18.0

6.6

5.0

6.4

1.6

28.1

34.0

cm.

5.6

45.7

45.7

16.8

12.7

16.3

4.1

71.4

86.4

Condensate is 3/4 in. PVC female glue socket and is switchable from side to front. *Discharge flange is field installed and extends 1 in. (25.4 mm) from top of cabinet. **Vertical units shipped with standard 2 in. (field adjustable to 1 in.) open application filter rack extending 2.2 in. from unit and is not suitable for duct connection, for ductable return connection applications, order the deluxe 2 in. (field adjustable to 1 in.) duct collar/filter rack which extends 3.25 in. from the unit and is suitable for duct connections.

W
2.0 5.1 1.9 4.8 1.8 4.6 2.0 5.1 2.0 5.1 2.0 5.1 3/16/12

Vertical Disconnect
When using disconnect, do not use dimension L from the standard vertical dimensional data. Use dimension LL from the vertical disconnect dimensional data.

Vertical Models 009-012 015-018 024-030 036-038 042-049 060-064 070-072
Dimensions in inches [cm]

LL 17.8 [45.2] 14.3 [36.3] 15.3 [38.9] 14.3 [36.3] 14.3 [36.3] 14.3 [36.3] External

3/16/12

7

Power Supply
1.8 in. [4.6 cm]

Disconnect Location
Alternative Power Location

Disconnect Located on this Side for a Right Return

LL
Vertical Shown in Left Return Configuration

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Horizontal Dimensional Data

Right Return

Standard filter rails 1 in. [2.5 cm] knockout K
0.5 in. [1.3 cm] knockout Front
J AP CMP
2′ (61 cm) Service Access

1.7 in. [5.3 cm] CP AP

A RR Front View

1.7

1.7

1.7 in. [5.3 cm]

Standard filter rails Front

E

D

AP

CMP

2′ (61 cm)

J

Service Access

Left Return

Condensate “X” PVC size
End Discharge

Side Discharge

Deluxe filter rack option shown

2.3 in. [5.8 cm]

N

P

BLOWER OUTLET

MC

FILTER RACK AIR COIL SIDE

H

L

2.1 in. [5.3 cm] A

Right Return End Discharge

CP AP E

0.5 in. [1.3 cm] knockout
K 1 in. [2.5 cm] knockout

D

LR Front View

Legend AP = Alternate Service Panel BP = Blower Service Panel CP = Control Access Panel CMP = Compressor Service Panel

Side Discharge

Condensate “X” PVC size
End Discharge

Deluxe filter rack option shown

P

N

L

2.3 in. [5.8 cm]

FILTER RACK AIR COIL SIDE

CM

BLOWER

OUTLET

H

2.1 in. [5.3 cm] A
Left Return End Discharge

P

N

L

M BP

BLOWER OUTLET

1.5 in. [3.8 cm] AP CMP

Right Return Side Discharge

K 0.5 in. [1.3 cm] J knockout

Front

Front

1 in. [2.5 cm]

J

knockout

K

0.5 in. [1.3 cm]

knockout

1.5 in. [3.8 cm] AP CMP

N

P

BLOWER OUTLET

BP M

L

Left Return Side Discharge

Air Coil
C Front

Q FILTER RACK CONNECTION

S

T

TS

Deluxe filter rack option (shown)

R

CR

Q FILTER RACK CONNECTION

B Right Return Side View

B Left Return Side View

Air Coil Front

8

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Horizontal Dimensional Data cont.

Overall Cabinet

Horizontal

1

Models

A

B

C

D

Width

Depth

Height*

In

in.

22.5

35.0

17.2

1.8

009-012

cm.

57.2

88.9

43.7

4.6

in.

22.5

42.0

19.2

1.8

015-018

cm.

57.2

106.7

48.8

4.6

in.

22.5

45.0

19.2

1.8

024-030

cm.

57.2

114.3

48.8

4.6

036-038 in.

25.5

48.0

21.2

1.8

cm.

64.8

121.9

53.8

4.6

in.

25.5

53.0

21.2

1.8

042-049

cm.

64.8

134.6

53.8

4.6

in.

25.5

61.0

21.2

1.8

060-064

cm.

64.8

154.9

53.8

4.6

in.

25.5

68.0

21.2

1.8

070-072

cm.

64.8

172.7

53.8

4.6

Water Connections

2

3

E

H

Out

Condensate

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

6.8

0.8

17.3

2.0

Loop Water FPT
1/2 in. 12.7 mm 3/4 in. 19.05 mm 3/4 in. 19.05 mm
1 in. 25.4 mm
1 in. 25.4 mm
1 in. 25.4 mm
1 in. 25.4 mm

Electrical Knockouts

J

K

1/2 in. cond 1 in. cond

Low Voltage Power Supply

7.1

7.1

18.0

18.0

9.1

7.1

23.1

18.0

9.2

7.1

23.4

18.0

9.2

9.1

23.4

23.1

9.2

9.1

23.4

23.1

9.2

9.1

23.4

23.1

9.2

9.1

23.4

23.1

3/16/12

Horizontal Models

Discharge Connection

duct flange installed (±0.10 in.)

L

M

N

P

Return Connection

using deluxe filter rack option (±0.10 in.)

Q

R

S

T

Supply Width Supply Depth

Return Depth Return Height

in.

5.9

7.2

9.5

6.0

16.4

14.5

2.0

1.4

009-012

cm.

15.0

18.3

24.1

15.2

41.7

36.8

5.1

3.6

in.

6.7

10.5

9.4

4.9

27.4

16.6

2.0

1.4

015-018

cm.

17.0

26.7

23.9

12.4

69.6

42.2

5.1

3.6

in.

6.7

10.5

9.4

4.9

30.4

16.6

2.0

1.5

024-030

cm.

17.0

26.7

23.9

12.4

77.2

42.2

5.1

3.8

in.

4.9

13.6

13.2

4.6

35.4

18.6

2.3

1.4

036-038

cm.

12.4

34.5

33.5

11.7

89.9

47.2

5.8

3.6

in.

4.9

13.6

13.2

4.6

40.4

18.6

2.3

1.4

042-049

cm.

12.4

34.5

33.5

11.7

102.6

47.2

5.8

3.6

in.

4.9

13.6

13.2

4.6

45.4

18.6

2.3

1.4

060-064

cm.

12.4

34.5

33.5

11.7

115.3

47.2

5.8

3.6

in.

4.9

13.6

13.2

4.6

45.4

18.6

2.3

1.4

070-072

cm.

12.4

34.5

33.5

11.7

115.3

47.2

5.8

3.6

Horizontal units shipped with standard 2 in. (field adjustable to 1 in.) open application filter rack extending 2.2 in. from unit and is not suitable for duct connection, for ductable return connection applications, order the deluxe 2 in. (field adjustable to 1 in.) filter rail/filter rack which extends 3.25 in. from the unit and is suitable for duct connections.

PVC Size
X
3/4″ 1.9 3/4″ 1.9 3/4″ 1.9 3/4″ 1.9 3/4″ 1.9 3/4″ 1.9 3/4″ 1.9
3/16/12

Horizontal Disconnect
When using disconnect, do not use dimension K from the standard horizontal dimensional data. Use dimension KK from the horizontal disconnect dimensional data.

Horizontal Models 009-012 015-018 024-030 036-038 042-049 060-064 070-072
Dimensions in inches [cm]

KK 8.2 [20.8] 9.2 [23.4] 9.2 [23.4] 11.2 [28.4] 10.2 [25.9] 11.2 [28.4] 10.2 [25.9]

Disconnect Located on this Side for a Left Return
3/16/12

Disconnect Location

KK

2.1 in. [5.3 cm]

Power Supply
Horizontal Shown in Right Return Configuration

9

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Installing Horizontal Units
Installing Horizontal Units Remove and discard the compressor hold down shipping bolt located at the front of the compressor mounting bracket prior to setting the unit in place. Horizontal units are available with side or end discharge.
NOTE: Horizontal units are normally suspended from a ceiling by four (009-060 models) or five (070-072 models) 3/8 in. diameter threaded rods. The rods are usually attached to the unit by hanger bracket kits furnished with each unit.
Lay out the threaded rods per the Hanger Bracket Dimensions table. Assemble the hangers to the unit as shown. Securely tighten the brackets to the unit using the weld nuts located on the underside of the bottom panel. When attaching the hanger rods to the bracket, a double nut is required since vibration could loosen a single nut. To allow filter access, install hanger brackets as illustrated in the Hanger Bracket Locations section. The unit should

be pitched approximately 1/4 in. towards the drain in both directions to facilitate the removal of condensate. Use only the bolts provided in the kit to attach hanger brackets. The use of longer bolts could damage internal parts.
Some applications require the installation of horizontal units on an attic floor. In this case, the unit should be set in a full size secondary drain pan on top of a vibration absorbing pad. The secondary drain pan prevents possible condensate overflow or water leakage damage to the ceiling. The secondary drain pan is usually placed on a plywood base isolated from the ceiling joists by additional layers of vibration absorbing material.
CAUTION: Do not use rods smaller than 3/8 in. diameter since they may not be strong enough to support the unit. The rods must be securely anchored to the ceiling.

10

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Hanger Bracket Locations

H

Right

D Compressor Section
B
E

F
C Air Handler
Section G

A
3/8″ Threaded Rod (not supplied)

E

Compressor

D

Section

H

Vibration Isolator W asher

Left G
Air Handler Section
F

Bolt and Lockwasher

Hex Nuts (not supplied)

NOTE: Model sizes 070-072 will be shipped with six (6) hanger brackets. Only five (5) hanger brackets will be used on the unit. See the above illustration for the fifth hanger bracket location. All other models will use four (4) hanger brackets.

Hanger Bracket Dimensions

Single Speed

Model

Hanger Kit Part Number

in.

009-012

99S500A04

cm.

in.

015-018

99S500A04

cm.

in.

024-030

99S500A04

cm.

036

in. 99S500A04
cm.

in.

042-048

99S500A04

cm.

060

in. 99S500A04
cm.

070

in. 99S500A03
cm.

026

in. 99S500A04
cm.

in.

038

99S500A03

cm.

049

in. 99S500A04
cm.

064

in. 99S500A04
cm.

in.

072

99S500A03

cm.

Unit Hanger Dimensions

A

B

C

H

35.7

25.1

21.4

n/a

90.7

63.8

54.4

n/a

42.8

25.1

21.4

n/a

108.7

63.8

54.4

n/a

45.8

25.1

21.4

n/a

116.3

63.8

54.4

n/a

48.8

28.1

24.4

n/a

124.0

71.4

62.0

n/a

53.8

28.1

24.4

n/a

136.7

71.4

62.0

n/a

61.8

28.1

24.4

n/a

157.0

71.4

62.0

n/a

68.8

28.1

24.4

34.0

174.8

71.4

62.0

74.4

45.8

25.1

21.4

n/a

116.3

63.8

54.4

n/a

48.8

28.1

24.4

n/a

124.0

71.4

62.0

n/a

53.8

28.1

24.4

n/a

136.7

71.4

62.0

n/a

61.8

28.1

24.4

n/a

157.0

71.4

62.0

n/a

68.8

28.1

24.4

34.0

174.8

71.4

62.0

74.4

3/16/12

Dual Capacity

Weight Distribution

Model

Vertical Horizontal Weight Weight

009

171 [78]

176 [80]

171 012
[78]

176 [80]

210 015
[95]

220 [100]

210 018
[95]

220 [100]

Single Speed

024

280 [127]

295 [134]

030

285 [129]

295 [134]

036

300 [136]

305 [138]

042

365 [166]

375 [170]

048

370 [168]

380 [172]

060

410 [186]

420 [191]

070

445 [202]

455 [206]

026

280 [127]

295 [134]

Dual Capacity

038

360 [163]

375 [170]

049

370 [168]

380 [172]

064

410 [186]

420 [191]

445 072
[202]

455 [206]

Weights are listed in lbs. [kg].

Horizontal Weight Distribution

Front

Back

D

E

F

G

32

67

32

45

[15] [30] [15] [20]

32

67

32

45

[15] [30] [15] [20]

65

40

70

35

[29] [18] [32] [16]

65

40

70

35

[29] [18] [32] [16]

75

70

75

20

[34] [31] [34] [13]

75

70

75

30

[34] [31] [34] [13]

85

80

85

40

[39] [36] [39] [18]

115

95

75

60

[52] [43] [34] [27]

120

100

80

65

[54] [45] [36] [29]

120

110

95

80

[54] [50] [43] [36]

135

120

100

85

[61] [54] [45] [39]

75

70

75

50

[34] [31] [34] [13]

115

95

75

60

[52] [43] [34] [27]

120

100

80

65

[54] [45] [36] [29]

120

110

95

80

[54] [50] [43] [36]

135

120

100

85

[61] [54] [45] [39]

3/16/12

11

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Duct System
An air outlet collar is provided on vertical top flow units and all horizontal units to facilitate a duct connection. A flexible connector is recommended for discharge and return air duct connections on metal duct systems. Uninsulated duct should be insulated with a minimum of 1-inch duct insulation. Application of the unit to uninsulated ductwork in an unconditioned space is not recommended as the unit’s performance will be adversely affected.
If the unit is connected to existing ductwork, check the duct system to ensure that it has the capacity to accommodate the air required for the unit application. If the duct is too small, as in the replacement of heating only systems, larger ductwork should be installed. All existing ductwork should be checked for leaks and repaired if necessary.

The duct system should be sized to handle the design airflow quietly and efficiently. To maximize sound attenuation of the unit blower, the supply and return plenums should include an internal duct liner of fiberglass or constructed of ductboard for the first few feet. On systems employing a sheet metal duct system, canvas connectors should be used between the unit and the ductwork. If air noise or excessive airflow is a problem, the blower speed can be changed.

Water Piping
The proper water flow must be provided to each unit whenever the unit operates. To assure proper flow, use pressure/temperature ports to determine the flow rate. These ports should be located at the supply and return water connections on the unit. The proper flow rate cannot be accurately set without measuring the water pressure drop through the refrigerant-to-water heat exchanger.

All source water connections on commercial units are fittings that accept a male pipe thread (MPT). Insert the connectors by hand, then tighten the fitting with a wrench to provide a leakproof joint. When connecting to an open loop (groundwater) system, thread any copper MPT fitting into the connector and tighten in the same manner as described above.

Condensate Drain
On vertical units, the internal condensate drain assembly consists of a drain tube which is connected to the drain pan, a 3/4 in. PVC female adapter and a flexible connecting hose. The female adapter may exit either the front or the side of the cabinet. The adapter should be glued to the field-installed PVC condensate piping. On vertical units, a condensate hose is inside all cabinets as a trapping loop; therefore, an external trap is not necessary.
Horizontal Drain Connection (Composite Drain Pan)

On horizontal units, a PVC stub or stainless steel tube is provided for condensate drain piping connection. An external trap is required (see below). If a vent is necessary, an open stand pipe may be applied to a tee in the fieldinstalled condensate piping.
Unit Pitch for Drain

PVC tube stub

PVC coupling

1.5 in.

1.5 in.

Vent (if needed)
PVC tube stub 1/8 in. per foot

12

1/2” Pitch Drain

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Water Quality

In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present, a closed loop system is recommended. The heat exchanger coils in ground water systems may, over a period of time, lose heat exchange capabilities due to a buildup of mineral deposits inside. These can be cleaned, but only by a qualified service mechanic, as special solutions and pumping equipment are required. Hot water generator coils can likewise become scaled and possibly plugged. In areas

with extremely hard water, the owner should be informed that the heat exchanger may require occasional flushing. Failure to adhere to the guidelines in the water quality table could result in loss of warranty.
Units with cupronickel heat exchangers are recommended for open loop applications due to the increased resistance to build-up and corrosion, along with reduced wear caused by acid cleaning.

Material pH
Scaling

Acidity/Alkalinity Calcium and
Magnesium Carbonate

Hydrogen Sulfide

Corrosion
Iron Fouling (Biological Growth)

Sulfates Chlorine Chlorides Carbon Dioxide Ammonia Ammonia Chloride Ammonia Nitrate Ammonia Hydroxide Ammonia Sulfate Total Dissolved Solids (TDS) LSI Index Iron, FE2+ (Ferrous) Bacterial Iron Potential
Iron Oxide

Suspended Solids

Erosion

Threshold Velocity

(Fresh Water)

NOTES: Grains = ppm divided by 17

mg/L is equivalent to ppm

Copper 7 – 9
(Total Hardness) less than 350 ppm Less than 0.5 ppm (rotten egg smell appears at 0.5 ppm) Less than 125 ppm Less than 0.5 ppm Less than 20 ppm Less than 50 ppm Less than 2 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 1000 ppm
+0.5 to -0.5

90/10 Cupronickel 7 – 9
(Total Hardness) less than 350 ppm
10 – 50 ppm
Less than 125 ppm Less than 0.5 ppm Less than 125 ppm
10 – 50 ppm Less than 2 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm 1000 – 1500 ppm
+0.5 to -0.5

< 0.2 ppm

< 0.2 ppm

Less than 1 ppm, above this level deposition will occur
Less than 10 ppm and filtered for max. of 600 micron size

Less than 1 ppm, above this level deposition will occur
Less than 10 ppm and filtered for max. of 600 micron size

< 6 ft/sec

< 6 ft/sec

316 Stainless Steel 7 – 9
(Total Hardness) less than 350 ppm
Less than 1 ppm
Less than 200 ppm Less than 0.5 ppm Less than 300 ppm
10 – 50 ppm Less than 20 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm Less than 0.5 ppm 1000 – 1500 ppm
+0.5 to -0.5
< 0.2 ppm
Less than 1 ppm, above this level deposition will occur Less than 10 ppm and filtered for max. of 600 micron size
< 6 ft/sec
2/22/12

System Cleaning and Flushing
Cleaning and Flushing
Prior to start up of any heat pump, the water circulating system must be cleaned and flushed of all dirt and debris.
If the system is equipped with water shutoff valves, the supply and return runouts must be connected together at each unit location (This will prevent the introduction of dirt into the unit, see Flushing with Water Shutoff Valve Equipped Systems illustration). The system should be filled at the water make- up connection with all air vents open. After filling, vents should be closed.
The contractor should start the main circulator with the pressure reducing valve makeup open. Vents should be checked in sequence to bleed off any trapped air and to verify circulation through all components of the system.
As water circulates through the system, the contractor should check and repair any leaks found in the piping system. Drain(s) at the lowest point(s) in the system should

Flushing with Water Shutoff Valve Equipped Systems
Return Runout

Supply Runout

Rubber Hose

Mains

Runouts Initially Connected Together

13

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

System Cleaning and Flushing cont.

be opened for initial flush and blowdown, making sure water fill valves are set at the same rate. Check the pressure gauge at the pump suction and manually adjust the makeup water valve to hold the same positive pressure both before and after opening the drain valves. Flushing should continue for at least two hours, or longer if required, until drain water is clean and clear.
The supplemental heater and/or circulator pump, if used, should be shut off. All drains and vents should be opened to completely drain the system. Short- circuited supply and return runouts should now be connected to the unit supply and return connections.
Refill the system with clean water. Test the system water for acidity and treat as required to leave the water slightly alkaline (pH 7.5 to 8.5). The specified percentage of antifreeze may also be added at this time. Use commercial grade antifreeze designed for HVAC systems only. EnvironolTM brand antifreeze is recommended.
Once the system has been filled with clean water and antifreeze (if used), precautions should be taken to protect the system from dirty water conditions. Dirty water will result in system-wide degradation of performance, and solids may clog valves, strainers, flow regulators, etc. Additionally, the heat exchanger may become clogged which reduces compressor service life and can cause premature unit failure.
In boiler/tower application, set the loop control panel set points to desired temperatures. Supply power to all motors and start the circulating pumps. After full flow has

been established through all components including the heat rejector (regardless of season), air vented and loop temperatures stabilized, each of the units will be ready for check, test and start up and for air and water balancing.
Ground Source Loop System Checkout
Once piping is completed between the unit pumping system and ground loop, final purging and charging of the loop is needed. A high pressure pump is needed to achieve adequate flow velocity in the loop to purge air and dirt particles from the loop itself. Antifreeze solution is used in most areas to prevent freezing. Flush the system adequately to remove as much air as possible; then pressurize the loop to a static pressure of 40-50 PSI (summer) or 50-75 PSI (winter). This is normally adequate for good system operation. Loop static pressure may decrease soon after initial installation, due to pipe expansion and loop temperature change. Running the unit for at least 30 minutes after the system has been completely purged of air will allow for the “break-in” period. It may be necessary to adjust static loop pressure (by adding water) after the unit has run for the first time. Loop static pressure will also fluctuate with the seasons. Pressures will be higher in the winter months than during the cooling season. This fluctuation is normal and should be considered when charging the system initially.
Ensure the pump provides adequate flow through the unit by checking pressure drop across the heat exchanger. Usually 2.25-3.0 gpm of flow per ton of cooling capacity is recommended in earth loop applications.

Open Loop Ground Water Systems

Typical open loop piping is shown below. Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure. Insure proper water flow through the unit by checking pressure drop across the heat exchanger and comparing it to the figures in unit capacity data tables in the specification catalog. 1.5-2 gpm of flow per ton of cooling capacity is recommended in open loop applications. Due to only minor differences in flow rate from low to high, only one solenoid valve should be used. The valve should be sized for full flow.
Discharge water from the unit is not contaminated in any manner and can be disposed of in various ways, depending on local codes, i.e. recharge well, storm sewer, drain field, adjacent stream or pond, etc. Most local codes forbid the use of sanitary sewer for disposal. Consult your local building and zoning departments to assure compliance in your area.

Open System – Groundwater Application

Unit Supply Aux. Heat Supply

Flexible Duct Collar

Rubber Bladder Expansion Tank

Hot Water Generator Connections

Drain

Solenoid Valve

Flow Control Valve
(on outlet of Solenoid Valve)
Water Out Water In

Disconnects (If Applicable)

Shut Off Valves
Shut Off Valves (to isolate solenoid valve while acid flushing)

Compressor Line Voltage

Low Voltage to Thermostat
and Valve

P/T Plugs
Vibration Absorbing Pad

Strainer

Boiler Drains For HX Flushing

14

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Hot Water Generator Connections

The heat reclaiming hot water generator coil is of vented double-wall copper construction and is suitable for potable water.
To maximize the benefits of the hot water generator a minimum 50-gallon water heater is recommended. For higher demand applications, use an 80-gallon water heater or two 50-gallon water heaters connected in a series as shown below. Electric water heaters are recommended. Make sure all local electrical and plumbing codes are met for installing a hot water generator. A water softener is recommended with hard water (greater than 10 grains or 170 total hardness).

Typical Hot Water Generator Installation

3/4 in. x 3/4 in. x 1/2 in. Tee Ball Valve

Cold Water In

Hot Water Out

Vent

HWG Water Out

P/T Relief Valve

In

Field Installed

HWG HWG Pump

Water In

Drain Valve

Water Tank Preparation
To install a unit with a hot water generator, follow these installation guidelines.
1. Turn off the power to the water heater. 2. Attach a water hose to the water tank drain connection and
run the other end of the hose to an open drain or outdoors. 3. Close the cold water inlet valve to the water heater tank. 4. Drain the tank by opening the valve on the bottom of the
tank, then open the pressure relief valve or hot water faucet. 5. Flush the tank by opening the cold water inlet valve to
the water heater to free the tank of sediments. Close when draining water is clear. 6. Disconnect the garden hose and remove the drain valve from the water heater. 7. Refer to Plumbing Installation and Hot Water Generator Startup.

Hot Water Generator Installation In Preheat Tank

3/4 in. x 3/4 in. x 1/2 in. Tee Ball Valve Vent

Cold Water In

Hot Water Out

HWG Water Out

P/T Relief Valve

P/T Relief Valve

In

Field Installed HWG HWG Pump Water In

Drain Valve

NOTE: This configuration maximizes hot water generator capability.

CAUTION: Elements will burn out if energized dry.

Plumbing Installation
1. Inspect the dip tube in the water heater cold inlet for a check valve. If a check valve is present it must be removed or damage to the hot water generator circulator will occur.
2. Remove drain valve and fitting. 3. Thread the 3/4-inch NPT x 3-1/2-inch brass nipple into
the water heater drain port. 4. Attach the center port of the 3/4-inch FPT tee to the
opposite end of the brass nipple. 5. Attach the 1/2-inch copper to 3/4-inch NPT adaptor to
the side of the tee closest to the unit. 6. Install the drain valve on the tee opposite the adaptor. 7. Run interconnecting tubing from the tee to HWG
water out.

8. Cut the cold water “IN” line going to the water heater. 9. Insert the reducing solder tee in line with cold water
“IN” line as shown. 10. Run interconnecting copper tubing between the unit
DHW water “IN” and the tee (1/2-inch nominal). The recommended maximum distance is 50 feet. 11. To prevent air entrapment in the system, install a vent coupling at the highest point of the interconnecting lines. 12. Insulate all exposed surfaces of both connecting water lines with 3/8-inch wall closed cell insulation.
NOTE: All plumbing and piping connections must comply with local plumbing codes.

15

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Hot Water Generator Connections cont.

Hot Water Generator Startup
1. Make sure the power is off to the heat pump. Connect the wire from the hot water generator pump to T1 on the contactor.
2. Close the drain valve to the water heater. 3. Open the cold water supply to the tank. 4. Open a hot water faucet in the building to bleed air
from the system. Close when full. 5. Open the pressure relief valve to bleed any remaining
air from the tank, then close. 6. If so equipped, turn the venting (burping) screw in the
center of the pump two (2) turns open (water will drip out), wait until all air is purged from the pump, then tighten the plug. Use vent couplings to bleed air from the lines. 7. Carefully inspect all plumbing for water leaks and correct as required. 8. Before restoring electrical supply to the water heater, adjust the temperature setting on the tank.
· On tanks with both upper and lower elements, the lower element should be turned down to the lowest setting, approximately 100°F. The upper element should be adjusted to 120°F to 130°F. Depending upon the specific needs of the customer, you may want to adjust the upper element differently.
· On tanks with a single element, lower the thermostat setting to 120°F.

9. After the thermostat(s) is adjusted, replace the access cover and restore electrical supply to the water heater.
10. Make sure that any valves in the hot water generator circuit are open.
11. Turn on the unit to heating. 12. The HWG pump should be running. When the pump
is first started, turn the venting (burping) screw (if equipped) in the center of the pump two (2) turns open until water dribbles out, then replace. Allow the pump to run for at least five minutes to ensure that water has filled the circulator properly. 13. The temperature difference between the water entering and leaving the hot water generator should be 5°F to 15°F. The water flow should be approximately 0.4 gpm per ton of nominal cooling. 14. Allow the unit to heat water for 15 to 20 minutes to be sure operation is normal.
CAUTION: Never operate the HWG circulating pump while dry. If the unit is placed in operation before the hot water generator piping is connected, be sure that the pump wires are disconnected from the contactor.

16

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact
Freeze Detection
For Aurora Base Control, set SW2-1, FP1, on the printed circuit board for applications using a closed loop antifreeze solution to 15°F [-9.4°C]. On applications using an open loop/ground water system (or closed loop no antifreeze), set this dip switch to 30°F [-1.1°C], the factory default setting. (Refer to the Dip Switch Field Selection table).

Electrical Connections
General
Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable.
Power Connection
Connect the incoming line voltage wires to L1 and L2 of the contactor for single-phase unit. Consult the Electrical Data tables for correct fuse sizes.
Aurora Base Control Box

208 Volt Operation
All 208/230 units are factory wired for 230 volt operation. For 208 volt operation, the red and blue transformer wires must be switched on terminal strip PS.
CAUTION: When installing a unit with a variable speed ECM blower motor in 460/60/3 voltage, a neutral wire is required to allow proper unit operation.

17

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Electrical Data

PSC Motor

Model

Rated Voltage

Voltage Min/Max

Single Speed

009 012 015 018 024 024 030 030 036 036 042 042 048 048* 060 070

208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 208-230/60/3
460/60/3 575/60/3 208-230/60/1 208-230/60/3 460/60/3 575/60/3 208-230/60/1 208-230/60/3 460/60/3 575/60/3 208-230/60/1 208-230/60/3 460/60/3 575/60/3 208-230/60/1 208-230/60/3 460/60/3 575/60/3 208-230/60/1 208-230/60/3 460/60/3 575/60/3

187/253 238/292 187/253 238/292 187/253 238/292 187/253 238/292 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 187/253 414/506 517/633 187/253 187/253 414/506 517/633 187/253 187/253 414/506 517/633 187/253 187/253 414/506 517/633 187/253 187/253 414/506 517/633 187/253 187/253 414/506 517/633

HACR circuit breaker in USA only *With optional High-static PSC motor **With optional IntelliStart

MCC
6.4 6.7 7.7 7.0 9.7 7.8 13.1 8.7 21.0 14.0 11.0 5.5 21.0 14.0 11.0 5.5 20.0 15.0 12.0 5.6 20.0 15.0 12.0 5.6 22.0 17.5 13.9 6.5 22.0 17.5 13.9 6.5 26.0 16.3 9.0 5.9 26.0 16.3 9.0 5.9 31.0 21.2 9.5 6.5 31.0 21.2 9.5 6.5 41.2 24.9 12.1 8.9 44.2 30.0 13.6 10.7

Compressor

RLA

LRA

4.1 4.3 4.9 4.5 6.2 5.0 8.4 5.6 13.5 9.0 7.1 3.5 13.5 9.0 7.1 3.5 12.8 9.6 7.7 3.6 12.8 9.6 7.7 3.6 14.1 11.2 8.9 4.2 14.1 11.2 8.9 4.2 16.7 10.4 5.8 3.8 16.7 10.4 5.8 3.8 19.9 13.6 6.1 4.2 19.9 13.6 6.1 4.2 26.4 16.0 7.8 5.7 28.3 19.2 8.7 6.9

21.0 22.0 25.0 22.0 29.0 28.0 33.5 28.0 58.3 54.0 55.4 28.0 58.3 54.0 55.4 28.0 58.0 54.0 55.4 28.0 58.0 54.0 55.4 28.0 73.0 60.0 58.0 28.0 73.0 60.0 58.0 28.0 79.0 73.0 38.0 36.5 79.0 73.0 38.0 36.5 109.0 83.1 41.0 33.0 109.0 83.1 41.0 33.0 134.0 110.0 52.0 38.9 178.0 136.0 66.1 55.3

LRA**
n/a n/a n/a n/a n/a n/a 13.4 n/a 23.3 n/a 33.2 16.8 23.3 n/a 33.2 16.8 23.2 n/a 33.2 16.8 23.2 n/a 33.2 16.8 29.2 n/a 34.8 16.8 29.2 n/a 34.8 16.8 31.6 43.8 22.8 n/a 31.6 43.8 22.8 n/a 43.6 49.9 24.6 n/a 43.6 49.9 24.6 n/a 53.6 66.0 31.2 n/a 71.2 81.6 39.7 n/a

Blower Motor FLA
0.6 0.6 0.6 0.6 1.1 1.0 1.1 1.0 1.2 1.1 1.2 0.6 1.5 1.5 1.5 1.0 1.5 1.5 1.5 1.0 2.8 2.0 2.2 1.1 2.8 2.0 2.8 1.4 3.5 3.5 1.8 1.8 3.5 3.5 1.8 1.4 4.6 4.6 2.3 1.9 3.5 3.5 1.8 1.4 4.6 4.6 2.3 1.9 5.9 5.9 3.0 1.9 5.9 5.9 3.0 1.9

Total Unit FLA
4.7 4.9 5.5 5.1 7.3 6.0 9.5 6.6 14.7 10.1 8.3 4.1 15.0 10.5 8.6 4.5 14.3 11.1 9.2 4.6 15.6 11.6 9.9 4.7 16.9 13.2 11.7 5.6 17.6 14.7 10.7 5.6 20.2 13.9 7.6 5.2 21.3 15.0 8.1 5.7 23.4 17.1 7.9 5.6 24.5 18.2 8.4 6.1 32.3 21.9 10.8 7.6 34.2 25.1 11.7 8.8

18

Min Circ Amp
5.7 6.0 6.7 6.2 8.9 7.3 11.6 8.0 18.1 12.4 10.1 5.0 18.4 12.8 10.4 5.4 17.5 13.5 11.1 5.5 18.8 14.0 11.8 5.6 20.4 16.0 13.9 6.7 21.1 17.5 12.9 6.7 24.4 16.5 9.0 6.1 25.5 17.6 9.5 6.6 28.4 20.5 9.4 6.7 29.5 21.6 9.9 7.2 38.9 25.9 12.8 9.0 41.3 29.9 13.9 10.5

Max Fuse/ HACR Breaker
10/15 10/15 10/15 10/15
15 10/15
20 10/15
25 20 15 10/15 30 20 15 10/15 30 20 15 10/15 30 20 15 10/15 30 25 20 10/15 35 25 20 10/15 40 25 10/15 10/15 40 25 15 10/15 45 30 15 10/15 45 35 15 10/15 60 40 20 10/15 70 45 20 15 8/06/13

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Electrical Data cont.

5-Speed ECM Motor

Model

Rated Voltage

Voltage Min/Max

Single Speed

015 018 024
030
036 042 048 060 070 026
038 049 064 072

208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 265/60/1
208-230/60/3 460/60/3
208-230/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3 208-230/60/1
265/60/1 208-230/60/3
460/60/3 208-230/60/1
265/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3 208-230/60/1 208-230/60/3
460/60/3

187/253 238/292 187/253 238/292 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506

Dual Capacity

HACR circuit breaker in USA only **With optional IntelliStart

MCC
9.7 7.8 13.1 8.7 21.0 14.0 11.0 5.5 20.0 15.0 12.0 5.6 22.0 17.5 13.9 6.5 26.0 16.3 9.0 31.0 21.2 9.5 41.2 24.9 12.1 44.2 30.0 13.6 18.2 14.2 10.1 5.4 23.8 20.3 18.1 8.9 33.0 21.9 10.0 42.3 25.8 11.3 46.3 27.4 13.2

Compressor

RLA

LRA

6.2 5.0 8.4 5.6 13.5 9.0 7.1 3.5 12.8 9.6 7.7 3.6 14.1 11.2 8.9 4.2 16.7 10.4 5.8 19.9 13.6 6.1 26.4 16.0 7.8 28.3 19.2 8.7 11.7 9.1 6.5 3.5 15.3 13.0 11.6 5.7 21.1 14.0 6.4 27.1 16.5 7.2 29.7 17.6 8.5

29.0 28.0 33.5 28.0 58.3 54.0 55.4 28.0 58.0 54.0 55.4 28.0 73.0 60.0 58.0 28.0 79.0 73.0 38.0 109.0 83.1 41.0 134.0 110.0 52.0 178.0 136.0 66.1 58.3 54.0 55.4 28.0 83.0 72.0 73.0 38.0 104.0 83.1 41.0 152.9 110.0 52.0 179.2 136.0 66.1

LRA**
n/a n/a 13.4 n/a 23.3 n/a 33.2 16.8 23.2 n/a 33.2 16.8 29.2 n/a 34.8 16.8 31.6 43.8 22.8 43.6 49.9 24.6 53.6 66.0 31.2 71.2 81.6 39.7 23.3 n/a 33.2 16.8 33.2 n/a 43.8 22.8 41.6 49.9 24.6 61.2 66.0 31.2 71.7 81.6 39.7

Blower Motor FLA
4.1 3.6 4.1 3.6 4.1 3.6 4.1 2.1 4.1 3.6 4.1 2.1 4.1 3.6 4.1 2.1 7.6 7.6 4.0 7.6 7.6 4.0 7.6 7.6 4.0 7.6 7.6 4.0 4.1 3.6 4.1 2.1 4.1 3.6 4.1 2.1 7.6 7.6 4.0 7.6 7.6 4.0 7.6 7.6 4.0

Total Unit FLA
10.3 8.6 12.5 9.2 17.6 12.6 11.2 5.6 16.9 13.2 11.8 5.7 18.2 14.8 13.0 6.3 24.3 18.0 9.8 27.5 21.2 10.1 34.0 23.6 11.8 35.9 26.8 12.7 15.8 12.7 10.6 5.6 19.4 16.6 15.7 7.8 28.7 21.6 10.4 34.7 24.1 11.2 37.3 25.2 12.5

Min Circ Amp
11.9 9.9 14.6 10.6 21.0 14.9 13.0 6.5 20.1 15.6 13.7 6.6 21.7 17.6 15.2 7.4 28.5 20.6 11.2 32.5 24.6 11.6 40.6 27.6 13.8 43.0 31.6 14.9 18.7 15.0 12.2 6.4 23.2 19.9 18.6 9.2 34.0 25.1 12.0 41.5 28.2 13.0 44.7 29.6 14.6

Max Fuse/ HACR Breaker
15 10/15
20 15 30 20 20 10/15 30 25 20 10/15 35 25 20 10/15 45 30 15 50 35 15 60 40 20 70 50 20 30 20 15 10/15 35 30 30 10/15 50 35 15 60 40 20 70 45 20
5/21/13

19

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Electrical Data cont.
Variable Speed ECM Motor

Model

Rated Voltage

009

208-230/60/1 265/60/1

012

208-230/60/1 265/60/1

015

208-230/60/1 265/60/1

018

208-230/60/1 265/60/1

208-230/60/1

024

265/60/1 208-230/60/3

460/60/3

208-230/60/1

030

265/60/1 208-230/60/3

460/60/3

208-230/60/1

036

265/60/1 208-230/60/3

Single Speed

460/60/3

208-230/60/1

036*

265/60/1 208-230/60/3

460/60/3

208-230/60/1

042

208-230/60/3

460/60/3

208-230/60/1

042*

208-230/60/3

460/60/3

208-230/60/1

048

208-230/60/3

460/60/3

208-230/60/1

048*

208-230/60/3

460/60/3

208-230/60/1

060

208-230/60/3

460/60/3

208-230/60/1

070

208-230/60/3

460/60/3

208-230/60/1

026

265/60/1 208-230/60/3

460/60/3

208-230/60/1

038

265/60/1 208-230/60/3

460/60/3

208-230/60/1

Dual Capacity

038*

265/60/1 208-230/60/3

460/60/3

208-230/60/1

049

208-230/60/3

460/60/3

208-230/60/1

049*

208-230/60/3

460/60/3

208-230/60/1

064

208-230/60/3

460/60/3

208-230/60/1

072

208-230/60/3

460/60/3

HACR circuit breaker in USA only *With optional 1 HP ECM motor **With optional IntelliStart

Voltage Min/Max
187/253 238/292 187/253 238/292 187/253 238/292 187/253 238/292 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 238/292 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506 187/253 187/253 414/506

MCC
6.4 6.7 7.7 7.0 9.7 7.8 13.1 8.7 21.0 14.0 11.0 5.5 20.0 15.0 12.0 5.6 22.0 17.5 13.9 6.5 22.0 17.5 13.9 6.5 26.0 16.3 9.0 26.0 16.3 9.0 31.0 21.2 9.5 31.0 21.2 9.5 41.2 24.9 12.1 44.2 30.0 13.6 18.2 14.2 10.1 5.4 23.8 20.3 18.1 8.9 23.8 20.3 18.1 8.9 33.0 21.9 10.0 33.0 21.9 10.0 42.3 25.8 11.3 46.3 27.4 13.2

Compressor

RLA

LRA

4.1 4.3 4.9 4.5 6.2 5.0 8.4 5.6 13.5 9.0 7.1 3.5 12.8 9.6 7.7 3.6 14.1 11.2 8.9 4.2 14.1 11.2 8.9 4.2 16.7 10.4 5.8 16.6 10.4 5.8 19.9 13.6 6.1 19.9 13.6 6.1 26.4 16.0 7.8 28.3 19.2 8.7 11.7 9.1 6.5 3.5 15.3 13.0 11.6 5.7 15.3 13.0 11.6 5.7 21.1 14.0 6.4 21.1 14.0 6.4 27.1 16.5 7.2 29.7 17.6 8.5

21.0 22.0 25.0 22.0 29.0 28.0 33.5 28.0 58.3 54.0 55.4 28.0 58.0 54.0 55.4 28.0 73.0 60.0 58.0 28.0 73.0 60.0 58.0 28.0 79.0 73.0 38.0 79.0 73.0 38.0 109.0 83.1 41.0 109.0 83.1 41.0 134.0 110.0 52.0 178.0 136.0 66.1 58.3 54.0 55.4 28.0 83.0 72.0 73.0 38.0 83.0 72.0 73.0 38.0 104.0 83.1 41.0 104.0 83.1 41.0 152.9 110.0 52.0 179.2 136.0 66.1

LRA**
n/a n/a n/a n/a n/a n/a 13.4 n/a 23.3 n/a 33.2 16.8 23.2 n/a 33.2 16.8 29.2 n/a 34.8 16.8 29.2 n/a 34.8 16.8 31.6 43.8 22.8 31.6 43.8 22.8 43.6 49.9 24.6 43.6 49.9 24.6 53.6 66.0 31.2 71.2 81.6 39.7 23.3 n/a 33.2 16.8 33.2 n/a 43.8 22.8 33.2 n/a 43.8 22.8 41.6 49.9 24.6 41.6 49.9 24.6 61.2 66.0 31.2 71.7 81.6 39.7

Blower Motor FLA
0.94 0.94 0.94 0.94 4.0
4.1 4.0 4.1 4.0 4.1 4.0 4.1 4.0 4.1 4.0 4.1 4.0 4.1 4.0 4.1 7.0 6.9 7.0 6.9 4.0 4.0 4.1 7.0 7.0 6.9 4.0 4.0 4.1 7.0 7.0 6.9 7.0 7.0 6.9 7.0 7.0 6.9 4.0 4.1 4.0 4.1 4.0 4.1 4.0 4.1 7.0 7.0 7.0 6.9 4.0 4.0 4.1 7.0 7.0 6.9 7.0 7.0 6.9 7.0 7.0 6.9

Total Unit FLA
5.04 5.24 5.84 5.42 10.2 9.1 12.4 9.7 17.5 13.1 11.1 7.6 16.8 13.7 11.7 7.7 18.1 15.3 12.9 8.3 21.1 18.1 15.9 11.1 20.7 14.4 9.9 23.6 17.4 12.7 23.9 17.6 10.2 26.9 20.6 13.0 33.4 23.0 14.7 35.3 26.2 15.6 15.7 13.2 10.5 7.6 19.3 17.1 15.6 9.8 22.3 20.0 18.6 12.6 25.1 18.0 10.5 28.1 21.0 13.3 34.1 23.5 14.1 36.7 24.6 15.4

Min Circ Amp
6.1 6.3 7.1 6.5 11.8 10.4 14.5 11.1 20.9 15.4 12.9 8.5 20.0 16.1 13.6 8.6 21.6 18.1 15.1 9.4 24.6 20.9 18.1 12.2 24.9 17.0 11.3 27.8 20.0 14.1 28.9 21.0 11.7 31.9 24.0 14.5 40.0 27.0 16.7 42.4 31.0 17.8 18.6 15.5 12.1 8.4 23.1 20.4 18.5 11.2 26.1 23.3 21.5 14.0 30.4 21.5 12.1 33.4 24.5 14.9 40.9 27.6 15.9 44.1 29.0 17.5

Max Fuse/ HACR Breaker
10/15 10/15 10/15 10/15
15 15 20 15 30 20 20 10/15 30 25 20 10/15 35 25 20 10/15 35 30 25 15 40 25 15 40 30 15 45 30 15 50 35 20 60 40 20 70 50 25 30 20 15 10/15 35 30 30 15 40 35 30 15 50 35 15 50 35 20 60 40 20 70 45 25
5/18/2018

CAUTION: When installing a unit with a variable speed ECM blower motor in 460/60/3 voltage, a neutral wire is required to allow proper unit operation.
20

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Blower Performance Data

Standard PSC Motor

Model

Blower Blower Spd Size

Motor HP

H

009

MH ML*

6 x 8

1/10

L

H

012

MH* ML

6 x 8

1/10

L

H

015 M 9 x 7 1/6

L

H

018 M 9 x 7 1/6

L

H

024 M 9 x 7 1/5

L

H

030 M 9 x 7 1/3

L

H

036 M 10 x 10 1/2

L

H

042 M 10 x 10 1/2

L

H

048 M 10 x 10 1/2

L

H

060 M 11 x 10 1

L

H

070 M 11 x 10 1

L

0 480 440 395 325 480 440 395 325 845 735 620 845 735 620 1085 915 845 1290 1100 910 1665 1465 1130 2010 1670 1220 2010 1670 1220 2430 2265 2075 2430 2265 2075

0.05 450 410 370 310 450 410 370 310 835 730 615 835 730 615 1055 895 830 1270 1090 905 1640 1445 1115 1975 1650 1215 1975 1650 1215 2400 2235 2050 2400 2235 2050

0.10 440 400 360 300 440 400 360 300 825 725 610 825 725 610 1030 875 815 1245 1075 900 1610 1425 1100 1940 1630 1210 1940 1630 1210 2365 2205 2020 2365 2205 2020

0.15 420 380 340 280 420 380 340 280 815 715 605 815 715 605 1005 855 795 1220 1060 895 1580 1400 1090 1905 1610 1295 1905 1610 1295 2330 2175 1995 2330 2175 1995

Airflow (cfm) at External Static Pressure (in. wg)

0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60

410 380 360 340 330 310 300 –

370 350 330 310 300 280 270

–

330 310 290 280 270 250 240 –

270 250 240 230 220 210 200 –

410 380 360 340 330 310 300 –

370 350 330 310 300 280 270

–

330 310 290 280 270 250 240 –

270 250 240 230 220 210 200 –

800 790 775 755 735 710 680 565

705 700 690 675 660 630 600 485

600 590 580 565 550 520 490 –

800 790 775 755 735 710 680 565

705 700 690 675 660 630 600 485

600 590 580 565 550 520 490 –

980 950 925 895 870 830 795 735

835 815 795 765 735 705 675 590

775 750 725 702.5 680 650 625 505

1190 1160 1125 1090 1055 1020 985 880

1045 1020 995 970 940 910 875 785

885 875 865 850 835 810 780 710

1550 1515 1480 1450 1415 1315 1215 1090

1375 1350 1325 1260 1190 1140 1090 990

1075 1035 995 965 930 895 860 795

1870 1825 1780 1735 1690 1640 1590 1470

1590 1560 1530 1495 1460 1425 1390 1190

1200 1180 1160 1130 1100 1060 1020 930

1870 1825 1780 1735 1690 1640 1590 1470

1590 1560 1530 1495 1460 1425 1390 1190

1200 1180 1160 1130 1100 1060 1020 930

2290 2255 2215 2180 2140 2095 2045 1945

2145 2110 2070 2035 2000 1960 1915 1825

1965 1940 1915 1885 1850 1820 1785 1720

2290 2255 2215 2180 2140 2095 2045 1945

2145 2110 2070 2035 2000 1960 1915 1825

1965 1940 1915 1885 1850 1820 1785 1720

0.70 –
555 520
760 625 560 980 890 730 1210 1080
1210 1080
1835 1730 1610 1835 1730 1610

0.80 –
1715 1605 1505 1715 1605 1505

Optional High Static PSC Motor

Model

Blower Blower Spd Size

Motor HP

0

Airflow (cfm) at External Static Pressure (in. wg) 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80

H

1290 1270 1245 1220 1190 1160 1125 1090 1055 1020 985 880 760 –

024 M 9 x 7 1/3 1100 1090 1075 1060 1045 1020 995 970 940 910 875 785 625

–

L

910 905 900 895 885 875 865 850 835 810 780 710 560 –

H

1365 1340 1325 1305 1280 1250 1215 1180 1140 1100 1055 960 850 –

030 M 9 x 7 1/2 1040 1040 1035 1030 1020 1005 990 970 945 915 885 810 735

–

L

880 880 880 880 875 870 860 840 820 800 775 730 480 –

H

1930 1905 1875 1840 1805 1765 1725 1680 1635 1530 1425 1270 1150 1025

036 M 10 x 10 1/2 1635 1620 1600 1580 1555 1530 1505 1465 1425 1335 1240 1135 1035 775

L

1230 1230 1225 1215 1200 1165 1130 1095 1060 1035 1005 935 795 675

H

2115 2075 2035 1980 1920 1900 1880 1840 1795 1730 1660 1390 1225 1070

042 M 10 x 10 3/4 2005 1980 1950 1910 1865 1815 1765 1725 1685 1585 1485 1315 1140 1025

L

1860 1835 1805 1780 1750 1715 1675 1635 1590 1540 1490 1260 1115 980

H

2115 2075 2035 1980 1920 1900 1880 1840 1795 1730 1660 1390 1225 1070

048 M 10 x 10 3/4 2005 1980 1950 1910 1865 1815 1765 1725 1685 1585 1485 1315 1140 1025

L

1860 1835 1805 1780 1750 1715 1675 1635 1590 1540 1490 1260 1115 980

Factory settings are in Bold

Air flow values are with dry coil and 1 in. MERV 4.

For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]).

Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12in. wg. and 500

fpm by 0.16 in. wg.

• Denotes setting for 265 V operation.

0.90 1.00

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1510 1330

1440 1260

1335 1175

1510 1330

1440 1260

1335 1175

3/16/12

0.90 1.00

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

3/16/12

Setting Blower Speed – PSC

RE

HIGH MEDIUM LOW

CAUTION: Disconnect all power before performing this operation.

PSC BLOWER MOTOR BODY

BLOWER SPEED WI

21

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Blower Performance Data cont.

5-Speed ECM – Single Speed

Model

Motor Spd

Motor Tap

High

5

Med High 4

015

Med

3

Med Low 2

Low

1

High

5

Med High 4

018

Med

3

Med Low 2

Low

1

High

5

Med High 4

024 Med

3

Med Low 2

Low

1

High

5

Med High 4

030 Med

3

Med Low 2

Low

1

High

5

Med High 4

036 Med

3

Med Low 2

Low

1

High

5

Med High 4

042 Med

3

Med Low 2

Low

1

High

5

Med High 4

048 Med

3

Med Low 2

Low

1

High

5

Med High 4

060 Med

3

Med Low 2

Low

1

High

5

Med High 4

070 Med

3

Med Low 2

Low

1

T’Stat Blower Motor Cnct. Size HP
W 9 x 7 1/2
Y1 G
W 9 x 7 1/2
Y1 G W Y1
9 x 7 1/2 G
W Y1 9 x 7 1/2
G W Y1
11 x 10 1/2
G
W 11 x 10 1
Y1 G
W Y1 11 x 10 1
G W Y1
11 x 10 1
G W Y1
11 x 10 1
G

0 916 809 727 699 656 916 809 727 699 656 1015 935 865 810 695 1407 1146 1023 978 795 1530 1413 1355 1336 1243 1934 1799 1694 1575 1454 1934 1799 1694 1575 1454 2230 2081 1951 1812 1668 2472 2271 2133 2008 1806

Factory settings are in Bold Air flow values are with dry coil and standard 1 in. filter

0.05 898 787 715 675 604 898 787 715 675 604 1003 915 855 790 645 1381 1134 1012 962 777 1503 1388 1325 1299 1182 1910 1783 1680 1560 1406 1910 1783 1680 1560 1406 2212 2065 1931 1790 1651 2454 2248 2115 1985 1784

0.10 881 765 703 652 552 881 765 703 652 552 990 895 845 770 595 1354 1122 1001 946 759 1476 1363 1294 1261 1121 1886 1767 1666 1540 1358 1886 1767 1666 1540 1358 2193 2048 1910 1767 1633 2435 2225 2096 1962 1761

0.15 866 754 682 631 530 866 754 682 631 530 975 880 825 755 575 1327 1111 985 934 748 1453 1342 1276 1242 1061 1871 1744 1642 1520 1333 1871 1744 1642 1520 1333 2173 2032 1889 1748 1612 2414 2205 2072 1939 1742

Airflow (cfm) at External Static Pressure (in. wg)

0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60

851 679 813 804 795 774 754 731

743 725 707 688 669 654 639 606

661 638 616 601 587 561 536 485

611 594 577 551 525 490 455

–

508 493 479 436 394 350

–

–

851 679 813 804 795 774 754 731

743 725 707 688 669 654 639 606

661 638 616 601 587 561 536 485

611 594 577 551 525 490 455

–

508 493 479 436 394 350

–

–

955 945 935 920 905 890 880 850

875 855 840 825 815 800 785 755

810 795 780 765 750 735 720 675

740 725 710 695 680 660 640 560

550 520 495 455 420 400

–

–

1300 1267 1233 1201 1168 1131 1094 1009

1099 1085 1071 1062 1052 1042 1031 966

969 959 949 937 925 913 901

–

922 907 891 882 872 858 843

–

737 718 698 686 673 650 626

–

1429 1413 1397 1376 1355 1342 1329 1276

1321 1303 1285 1263 1240 1226 1212 1173

1258 1235 1212 1188 1164 1144 1123 982

1222 1202 1181 1157 1132 1111 1090 937

1000 964 928 856 784 744 703 647

1855 1827 1799 1780 1760 1747 1734 1700

1720 1693 1666 1649 1631 1617 1603 1560

1617 1592 1567 1552 1537 1519 1500 1453

1502 1487 1471 1448 1424 1409 1393 1351

1308 1285 1261 1239 1217 1198 1179 1072

1855 1827 1799 1780 1760 1747 1734 1700

1720 1693 1666 1649 1631 1617 1603 1560

1617 1592 1567 1552 1537 1519 1500 1453

1502 1487 1471 1448 1424 1409 1393 1351

1308 1285 1261 1239 1217 1198 1179 1072

2152 2139 2125 2109 2092 2076 2059 2026

2015 1998 1980 1963 1946 1928 1910 1880

1868 1850 1831 1812 1793 1774 1755 1722

1728 1708 1688 1671 1654 1640 1626 1584

1591 1566 1540 1525 1510 1491 1472 1433

2393 2371 2349 2328 2306 2289 2271 2236

2184 2166 2147 2129 2110 2094 2078 2039

2047 2030 2013 1996 1979 1965 1950 1909

1915 1898 1880 1862 1843 1828 1812 1774

1722 1696 1669 1656 1642 1625 1607 1564

0.70 695 536
695 536 825 720 610 530 1231 1016 909 874 592 1659 1530 1421 1308 1002 1659 1530 1421 1308 1002 1992 1849 1688 1547 1400 2189 2011 1873 1742 1527

0.80 643
643 745 580 570 1173 946 883 830 1617 1492 1372 1266 988 1617 1492 1372 1266 988 1951 1806 1654 1510 1351 2121 1977 1837 1703 1490

0.90 –
1892 1767 1612 1472 1299 2033 1930 1793 1669 1443

1.00 –
1806 1728 1562 1417 1208 1936 1846 1748 1635 1404

11/20/12

About 5-Speed ECM Constant Torque Motors
The 5-speed ECM is a Constant Torque’ ECM motor and delivers air flow similar to a PSC but operates as efficiently as a variable speed ECM motor. Because it is an ECM motor, the 5-speed ECM can ramp slowly up or down like the variable speed ECM motor. There are 5 possible speed taps available on the 5-speed ECM motor with #1 being the lowest airflow and #5 being the highest airflow. These speed selections are preset at the time of manufacture and are easily changed in the field if necessary. If more than one tap are energized at the same time, built in logic gives precedence to the highest tap number and allows air flow to change with G, Y1, Y2 and W signals. Each of those 5 speeds has a specificTorque’ value programmed into the motor for each speed selection. As static pressure increases,

airflow decreases resulting in less torque on the rotor. The motor responds only to changes in torque and adjusts its speed accordingly.
The 5-speed ECM motor is powered by line voltage but the motor speed is energized by 24VAC.
5-Speed ECM Benefits: – High efficiency – Soft start – 5 speeds with up to 4 speeds on-line – Built in logic allows air flow to change with G, Y1, Y2 and W signals – Super efficient low airflow continuous blower setting (G)

22

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Blower Performance Data cont.

5-Speed ECM – Dual Capacity

Model

Motor Speed

Motor T’stat Blower Motor Tap Cnct. Size HP

0

Airflow (cfm) at External Static Pressure (in. wg) 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80

High

5

W

1120 1109 1097 1082 1066 1055 1044 1028 1011 1001 991 932 839

–

Med High 4

Y2

1020 1006 991 980 968 950 932 922 911 894 876 849 812

–

026 Med

3

9 x 7 1/2 917 906 895 884 872 854 836 824 812 792 772 754 719

–

Med Low 2

Y1

836 824 812 794 776 765 754 735 715 703 691 653 631

–

Low

1

G

735 721 707 687 666 653 640 622 603 589 574 533

–

–

High

5

W

1530 1503 1476 1453 1429 1413 1397 1376 1355 1342 1329 1276 1231 1173

Med High 4

Y2

1413 1388 1363 1342 1321 1303 1285 1263 1240 1226 1212 1173 1016 946

038

Med

3

Y1 11 x 10 1/2 1355 1325 1294 1276 1258 1235 1212 1188 1164 1144 1123 982 909 883

Med Low 2

1336 1299 1261 1242 1222 1202 1181 1157 1132 1111 1090 937 874 830

Low

1

G

1243 1182 1121 1061 1000 964 928 856 784 744 703 647 592

High

5

W

1934 1910 1886 1871 1855 1827 1799 1780 1760 1747 1734 1700 1659 1617

Med High 4

1799 1783 1767 1744 1720 1693 1666 1649 1631 1617 1603 1560 1530 1492

049 Med

3

Y2 11 x 10 1 1694 1680 1666 1642 1617 1592 1567 1552 1537 1519 1500 1453 1421 1372

Med Low 2

Y1

1575 1560 1540 1520 1502 1487 1471 1448 1424 1409 1393 1351 1308 1266

Low

1

G

1454 1406 1358 1333 1308 1285 1261 1239 1217 1198 1179 1072 1002 988

High

5

W

2245 2230 2214 2194 2173 2155 2136 2120 2103 2087 2070 2032 1998 1957

Med High 4

Y2

2092 2073 2054 2035 2015 1995 1975 1958 1940 1922 1904 1880 1843 1806

064 Med

3

11 x 10 1

1951 1931 1910 1889 1868 1850 1831 1812 1793 1774 1755 1722 1688 1654

Med Low 2

Y1

1812 1796 1780 1761 1741 1718 1695 1682 1668 1651 1633 1591 1555 1518

Low

1

G

1682 1661 1640 1616 1591 1573 1555 1533 1510 1495 1480 1441 1400 1351

High

5

W

2472 2454 2435 2414 2393 2371 2349 2328 2306 2289 2271 2230 2189 2121

Med High 4

Y2

2271 2248 2225 2205 2184 2166 2147 2129 2110 2094 2078 2039 2011 1977

072

Med

3

11 x 10 1

2133 2115 2096 2072 2047 2030 2013 1996 1979 1965 1950 1909 1873 1837

Med Low 2

Y1

2008 1985 1962 1939 1915 1898 1880 1862 1843 1828 1812 1774 1742 1703

Low

1

G

1806 1784 1761 1742 1722 1696 1669 1656 1642 1625 1607 1564 1527 1490

Factory speed settings are in Bold Air flow values are with dry coil and standard filter For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]). Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12in. wg., and 500 fpm by 0.16 in. wg. Highest setting is for auxiliary heat (W) and lowest setting is for constant blower (G). The “Y1” and “Y2” settings must be between the “G” and “W” settings.

0.90 1.00

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1910 1825

1767 1728

1612 1562

1480 1433

1316 1263

2033 1936

1930 1846

1793 1748

1669 1635

1443 1404

7/30/15

Setting Blower Speed – 5-Speed ECM
5-speed ECM blower motors have five (5) speeds of which three (3) are selectable on single speed and four (4) are selectable on dual capacity.
CAUTION: Disconnect all power before performing this operation.

5-Speed ECM Motor Connections – Single Speed

C – Black
L – Orange G – Green

High Voltage Connections
3/16 in.
CLGN

N – Brown

G – Blue Y1 – Red

12345
Low Voltage Connections 1/4 in.

AUX – Gray

5-Speed ECM Motor Connections – Dual Capacity

C – Black
L – Orange G – Green

High Voltage Connections
3/16 in.
CLGN

N – Brown

G – Blue Y1 – Red

12345
Low Voltage Connections 1/4 in.

AUX – Gray Y2 – Tan

23

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Blower Performance Data cont.

Variable Speed ECM Motor
Single Speed

Model

Max Blower Motor

ESP

Size

hp

1

2

015

0.50 9 x 7

1/2

018

0.50 9 x 7

1/2

024

0.50 9 x 7

1/2

300 300

400 L
400 L
400

030 0.50 9 x 7

1/2

400

036 0.50 11 x 10 1/2

650

750

036 w/1hp*

0.75

11 x 10

1

042 0.50 11 x 10 1/2

042 w/1hp*

0.75

11 x 10

1

048 0.50 11 x 10 1/2

048 w/1hp*

0.75

11 x 10

1

060 0.75 11 x 10

1

800 650 800 650 800 800

1000 L
800
900 L
800
900
950

070 0.75 11 x 10

1

800

950

3 500
500
500 L
500 L
850 L
1100 M
900 L
1000
900
1000 L
1100 L
1100
L

4 600
M 600
M 600
M 600
1000
1300 H
1050
1200 M
1050 L
1200
1300
1300

Airflow DIP Switch Settings

5

6

7

8

700 H
700 H
700
700 M
1100 M

800
800 H
800
1200

900
900 H
1300 H

1000 1000 1400

1500 1600 1800

1150 M
1400 H
1150
1400 M
1500 M
1500

1250
1600
1250
1600 H
1750
1750 M

1350
1700
1350 M
1700
1950 H
1950

1450 H
1850
1450
1850
2100
2100 H

9
1100 1100 1500
1550 2000 1550
H 2000 2300 2300

Dual Capacity

Model

Max Blower Motor

ESP

Size

hp

1

2

3

4

Air Flow DIP Switch Settings

5

6

7

8

026

0.50 9 x 7

1/2

400

500 L

600

700 M

800

900 H

1000

038 0.50 11 x 10 1/2

650

750

850 1000 1100 1200 1300 1400

L

M

H

038 w/1hp*

0.75

11 x 10

1

800 L

1000

1100 M

1300 H

1500

1600

1800

049 0.50 11 x 10 1/2

049 w/1hp*

0.75

11 x 10

1

650
800 L

800 L
900

900 1000

1050 1200

1150
1400 M

1250
1600 H

1350 M
1700

1450 1850

064 0.75 11 x 10

1

800

950

1100 1300 1500 1750 1950 2100

L

M

H

072

0.75 11 x 10

1

800

950

1100 1300 1500

L

Factory settings are at recommended L-M-H DIP switch locations

M-H settings MUST be located within boldface cfm range

Lowest and Highest DIP switch settings are assumed to be L and H respectively

cfm is controlled within ±5% up to the maximum ESP

Max ESP includes allowance for wet coil and 1 in. MERV 4

1750 M

1950

2100 H

9 1100 1500
1550 H
2000
2300 2300

Variable Speed Constant Torque ECM

Fan Speed Fan RPM

0.0

0.1

1

0

2

514

190

3

630

245

50

4

800

330

230

5

950

405

320

6

1100

485

420

7

1200

540

485

8

1300

560

535

9

1400

560

535

10

1500

560

535

11

1600

560

535

12

1700

560

535

Air flow values are with dry coil and standard 1″ filter

Airflow [cfm] at External Static Pressure [in. wg.]

0.2

0.3

0.4

0.5

0.6

175

335

180

405

320

490

415

305

510

475

445

340

510

475

450

425

390

510

475

450

425

390

510

475

450

425

390

24

10

11

12

1200 1200

2200 2300 2400 2200 2300 2400

3/16/12

10

11

12

1200

2200 2300 2400 3/16/12

0.7

0.8

270

365

365

320

4/12/19

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Blower Performance Data cont.

Setting Blower Speed – Variable Speed ECM
The ABC board’s Yellow Config LED will flash the current variable speed ECM blower speed selections for low, med, and high continuously with a short pause in between. The speeds can also be confirmed with the AID Tool under the Setup/ECM Setup screen. The variable speed ECM blower motor speeds can be field adjusted with or without using an AID Tool.

Variable Speed ECM Setup with an AID Tool cont.

ECM SPEED INFO
LOW SPEED: 3 MED SPEED: 5 HIGH SPEED: 7

Selecting YES will enter variable speed ECM speed setup, while selecting NO will return to the previous screen.

Variable Speed ECM Setup without an AID Tool
The blower speeds for Low (G only), Med (Y1), and High (Y2/Aux) can be adjusted directly at the Aurora ABC board which utilizes the push button (SW1) on the ABC board. This procedure is outlined in the Variable Speed ECM Configuration Mode portion of the Aurora `Base’ Control System section.
Variable Speed ECM Setup with an AID Tool
A much easier method utilizes the AID Tool to change the airflow using the procedure below. First navigate to the Setup screen and then select ECM Setup. This screen displays the current variable speed ECM settings. It allows the technician to enter the setup screens to change the variable speed ECM settings. Change the highlighted item using the and buttons and then press the button to select the item.

WANT TO CHANGE?

YES

NO

OPTION ENTER

Variable Speed ECM Speed Setup – These screens allow the technician to select the low, medium, and high blower speed for the variable speed ECM blower motor. Change the highlighted item using the and buttons. Press the button to select the speed.

ECM SPEED INFO
1 2 <­ LOW 3 4 5 6 7 8 9 10 11 12

ECM SPEED INFO

1 2 LOW 3 4 5 6 7 8 9 10 11 12

<­ MED

ECM SPEED INFO

1 2 LOW 3 4 5 6 7 8 9 10 11 12

MED <­ HIGH

OPTION ENTER OPTION ENTER OPTION ENTER
After the high speed setting is selected the AID Tool will automatically transfer back to the ECM Setup screen.

25

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics

Aurora Control 460/60/3 Variable Speed ECM
Compressor

Note 4 PGM Y-OUT
Y C
Black/White (92) Yellow (91)
Note 2 Isolation
Valve
213

T3

T1

T2

Red

Yellow

Black

T3

T2

T1

CC

L3

L2

L1

Note 3
Phase Guard Monitor (PGM) L1 L2 L3

Black (7) White (8) Red (9)

Yellow

Blue

Black

460V

Transformer
24V Black/White

Black (54) Blue (55) Red (56)

CC

Dual Capacity Units Only
UltraTech
CS
RCP

Orange

Brown

PB3

N

Black (54)

L1

Blue (55)

L2

Red (56)

L3

Unit Power Supply 460/60/3 w/Neutral
G

Note 1

Green (93) Gray (94)

Ground
Neutral Disconnect

Black (95)

L1

L1

Yellow (96) L2

L2

Red (97)

L3

L3

T
RV

Resistor

RV FD

LP HP

Green

Orange Brown

1 2 3 4 5 P11

Variable Speed ECM
Blower Motor

R G PWM CFM C1 C2

12 15 10 16 1 3 P12

Black (15)

Violet (14)

Black (10) Black (09) Blue (08) Blue (07)
Yellow Yellow Orange (02) Orange (01)

Red (51)
Green (50)
White (52)

Red (53) Note 2

DH W Y2 Y1 G O/B C R LO P9

P2 ES LS ALM ALG ACC COM ACC NO ACC NC

K5 K6

LO R C O/B G Y1 Y2 W DH P1
F1

R

RS485 NET

C

P8

JW2

Blue(16) Blue(18)

R

F

FG

CC

CCGCHCI2

CC2 LO

CC2 G

P5

K3 K4
K2

CC 24V

REV REV FP1 FP1 FP2 FP2 LPS LPS HPS HPS P4

P12

C

K1

R

F

Aurora Base Control

SW1

(ABC)

LED5 RS485 NET C R A- B+ P7

LED4 RS485 EXP C R A- B+ P6 N/A CO C EH1 C EH2 P3

Status G

PWM CFM

C

Fault

P13

R

Off On

FP1 ­ 15°F/30°F

1

FP2 ­ 15°F/30°F

2

RV ­ B/O

3

Acc ­ Dip 1

4

Acc ­ Dip 2

5

CC ­ Dual/Single

6

L ­ Pulse/Continuous

7

Reheat/Normal

8

SW2

Config Y

Y1 G CC

Black/White Yellow Violet (42) Blue (24) Yellow (25)
Green/Yellow (28)
Notes
1 ­ Optional, factory installed unit mounted disconnect. 2 ­ Optional, factory installed internal isolation valve. 3 ­ Optional, factory installed phase guard 4 ­ Optional, factory installed phase guard. The yellow
transformer wire shall be connected directly to the CPU board, if this option is not installed.

Brown (23)

Green

Gray

RH

Gray (60)

(61)

Accessory Relay

Operation

SW2-4 SW2-5

Cycle with Blower

On On

Cycle with Compressor

Off Off

Water Valve Slow Open

On Off

Outdoor Air Damper

Off On

Aurora Timing Events

Event

Normal Mode Test Mode

Random Start Delay

5 to 80 seconds

1 second

Compressor On Delay

5 seconds

< 1 second

Compressor Minimum On Time

2 minutes

5 seconds

Compressor Short Cycle Delay

4 minutes

15 seconds

Blower Off Delay

30 seconds

2 seconds

Fault Recognition Delay ­ High Pressure

Less than 1 second Less than 1 second

Start-Up Bypass ­ Low Pressure

2 minutes

30 seconds

Fault Recognition Delay ­ Low Pressure

30 seconds

30 seconds

Start-Up Bypass ­ Low Water/Air Coil Limit

2 minutes

30 seconds

Fault Recognition Delay ­ Low Water/Air Coil Limit

30 seconds

30 seconds

Fault Recognition Delay ­ Condensate Overflow

30 seconds

30 seconds

Thermostat Call Recognition Time

2 seconds

2 seconds

Auxiliary Heat Staging Delay

5 minutes

20 seconds

Emergency Heat Staging Delay

2 minutes

7.5 seconds

Water Valve Slow Open Delay

90 seconds

90 seconds

Reheat Delay

30 seconds

30 seconds

Condensate

Aurora LED Flash Codes

Slow Flash 1 second on and 1 second off

Fast Flash 100 milliseconds on and 100 milliseconds off

Flash Code 100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating

Random Start Delay

Status LED (LED1, Green)

Fast Flash

Configuration LED (LED2, Yellow)

Fast Flash

Fault LED (LED3, Red)

Fast Flash

Status LED (LED1, Green) Configuration LED (LED2, Yellow)

Fault LED (LED3, Red)

Normal Mode

ON

No Software Overide Flash ECM Setting Normal Mode

OFF

Control is Non-Functional

OFF DIP Switch Overide

Slow Flash Input Fault Lockout

Flash Code 1

Test Mode

Slow Flash ECM Configure Mode

Fast Flash High Pressure Lockout

Flash Code 2

Lockout Active

Fast Flash Reset Configure Mode

Off

Low Pressure Lockout

Flash Code 3

Dehumidification Mode

Flash Code 2

Low Air Coil Limit Lockout – FP2 Flash Code 4

Reserved

Flash Code 3

Low Water Coil Limit Lockout – FP1 Flash Code 5

Reserved

Flash Code 4

Reserved

Flash Code 6

Load Shed

Flash Code 5

Condensate Overflow Lockout

Flash Code 7

ESD

Flash Code 6

Over/Under Voltage Shutdown

Flash Code 8

Reserved

Flash Code 7

Reserved

Flash Code 9

Reserved

Flash Code 10

Air/Water Coil Limit Sensor Error Flash Code 11

Legend

Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block DC Voltage PCB Traces Field Zone Sensor Wiring Internal Junction Quick Connect Terminal

L1

Field Wiring Lug

Ground
Relay Contacts ­ N.O., N.C.
Capacitor
Fuse
CC ­ Compressor Contactor CO ­ Condensate Overflow Sensor ES ­ Emergency Shutdown HP ­ High Pressure Switch LP ­ Low Pressure Switch FD ­ Freeze Detection Sensor F1 ­ Fuse

1 2 3

T

Thermistor

Relay Coil

Switch – Condensate Overflow Switch – High pressure Switch – Low pressure

Polarized connector

G

Light Emitting Diode – Green

Y

Light Emitting Diode – Yellow

R

Light Emitting Diode – Red

SW1 ­ Push button SW2 ­ DIP package 8 position RB ­ Blower Relay RV ­ Reversing Valve Coil PGM ­ Phase Guard Monitor RH ­ Reheat Valve Coil

97P818-08 3/19/12

26

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.
Aurora Base Control 460/60/3 5-Speed ECM with Reheat

Note 4
Phase Guard Monitor (PGM) L1 L2 L3
Red (9) White (8) Black (7)

T3

T1

Red

T2

Black

Yellow

T3

T2

T1

CC

L3

L2

L1

Note 1 Green (93)

Ground
Neutral Disconnect

Black (95)

L1

L1

Unit Power Supply 460/60/3
G

Yellow (96)

L2

L2

Red (97)

L3

L3

Blue

Black

460V

Brown Orange

Note 5
PGM Y-OUT
Y C
Black/White (92) Yellow (91)

Yellow

Transformer
24V Black/White

Note 2 Isolation
Valve
213

CC

Dual Capacity Units Only
UltraTech CS
RCP

470 T
RV

Gray
Tan
Red Blue
Black 470 Resistor

RV FD

LP HP

Black (10) Black (09) Blue (08) Blue (07)
Yellow Yellow Orange (02) Orange (01)

Black (15)

Violet (14)

Red (51)
Green (50)
White (52)

Red (53) Note 2

Blue(16) Blue(18)

P9 EH1 CC2 CC F C

P2

ES

LS

ALM ALG ACC COM

K5-Alarm Relay

ACC NO ACC NC

K6-Acc Relay

LO R C O/B G Y1 Y2 W DH P1
R

Com2 LED5
G RS485 NET

C

P8

K1-RV Relay

K3-CC2 Relay K2-CC Relay K4-Fan Relay
JW2

R

F

FG

CC

CCGCHCI2

CC2 LO

CC2 G

P5

REV REV FP1 FP1 FP2 FP2 LPS LPS HPS HPS P4

C

R F1-3A

F

Aurora Base Control (ABC)

SW1 Test Mode

Com1 LED5
G RS485 NET
C R – + P7

RS485 EXP C R – + P6 CO C EH1 C EH2 P3

Status LED3
G

PWM CFM

Fault

C

LED1

P13

R

Off On

FP1 ­ 15°F/30°F

1

FP2 ­ 15°F/30°F

2

RV ­ B/O

3

Acc ­ Dip 4

4

Acc ­ Dip 5

5

CC ­ Dual/Single

6

L Output Type

7

Future Use

8

SW2

Config

LED2

Y

Y1 G CC

Black/White Yellow

GN L

Green

5-Speed ECM Fan Motor

54321C

Note 5

Accessory Relay

Operation

SW2-4 SW2-5

Cycle with Blower

On On

Cycle with Compressor

Off Off

Water Valve Slow Open On Off

Outdoor Air Damper

Off On

Aurora Timing Events

Event

Normal Mode

Random Start Delay

5 to 80 seconds

Compressor On Delay

5 seconds

Compressor Minimum On Time

2 minutes

Compressor Short Cycle Delay

4 minutes

Blower Off Delay

30 seconds

Fault Recognition Delay ­ High Pressure

Less than 1 second

Start-Up Bypass ­ Low Pressure

2 minutes

Fault Recognition Delay ­ Low Pressure

30 seconds

Start-Up Bypass ­ Low Water/Air Coil Limit

2 minutes

Fault Recognition Delay ­ Low Water/Air Coil Limit

30 seconds

Fault Recognition Delay ­ Condensate Overflow

30 seconds

Thermostat Call Recognition Time

2 seconds

Auxiliary Heat Staging Delay

5 minutes

Emergency Heat Staging Delay

2 minutes

Water Valve Slow Open Delay

90 seconds

Reheat Delay

30 seconds

Test Mode 1 second < 1 second 5 seconds 15 seconds 2 seconds Less than 1 second 30 seconds 30 seconds 30 seconds 30 seconds 30 seconds 2 seconds 20 seconds 7.5 seconds 90 seconds 30 seconds

Notes:

1 ­ Optional, factory installed unit mounted disconnect. 2 ­ Optional, factory installed internal isolation valve. 3 ­ Optional, factory installed phase guard 4 ­ Optional, factory installed phase guard. The yellow transformer wire
shall be connected directly to the CPU board, if this option is not installed. 5 ­ Wire is provided with the unit but only connected to the 5 Speed ECM
motor on dual capacity units.

Gray (61)

RH

Gray (60)

Green

Brown (23) Condensate

Aurora LED Flash Codes

Slow Flash 1 second on and 1 second off

Fast Flash 100 milliseconds on and 100 milliseconds off

Flash Code 100 milliseconds on and 400 milliseconds off with a 2 second pause before repeating

Random Start Delay

Status LED (LED1, Green)

Fast Flash

Configuration LED (LED2, Yellow)

Fast Flash

Fault LED (LED3, Red)

Fast Flash

Status LED (LED1, Green)

Configuration LED (LED2, Yellow)

Fault LED (LED3, Red)

Normal Mode

ON

No Software Overide Flash ECM Setting Normal Mode

OFF

Control is Non-Functional

OFF DIP Switch Overide

Slow Flash Input Fault Lockout

Flash Code 1

Test Mode

Slow Flash ECM Configure Mode

Fast Flash High Pressure Lockout

Flash Code 2

Lockout Active

Fast Flash Reset Configure Mode

Off

Low Pressure Lockout

Flash Code 3

Dehumidification Mode

Flash Code 2

Low Air Coil Limit Lockout – FP2 Flash Code 4

Reserved

Flash Code 3

Low Water Coil Limit Lockout – FP1 Flash Code 5

Reserved

Flash Code 4

Reserved

Flash Code 6

Load Shed

Flash Code 5

Condensate Overflow Lockout

Flash Code 7

ESD

Flash Code 6

Over/Under Voltage Shutdown

Flash Code 8

Reserved

Flash Code 7

Reserved

Flash Code 9

Reserved

Flash Code 10

Air/Water Coil Limit Sensor Error Flash Code 11

Legend

Factory Low Voltage Wiring Factory Line Voltage Wiring Field Low Voltage Wiring Field Line Voltage Wiring Optional Block DC Voltage PCB Traces Field Zone Sensor Wiring Internal Junction Quick Connect Terminal

L1

Field Wiring Lug

Ground
Relay Contacts ­ N.O., N.C.
Capacitor
Fuse
CC ­ Compressor Contactor CO ­ Condensate Overflow Sensor ES ­ Emergency Shutdown HP ­ High Pressure Switch LP ­ Low Pressure Switch FD ­ Freeze Detection Sensor F1 ­ Fuse

1 2 3

T

Thermistor

Relay Coil

Switch – Condensate Overflow Switch – High pressure Switch – Low pressure

Polarized connector

G

Light Emitting Diode – Green

Y

Light Emitting Diode – Yellow

R

Light Emitting Diode – Red

SW1 ­ Push button SW2 ­ DIP package 8 position RB ­ Blower Relay RV ­ Reversing Valve Coil PGM ­ Phase Guard Monitor RH ­ Reheat Valve Coil

97P819-16 10/30/12

27

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.
Commercial Aurora UPC with Variable Speed ECM Motor 208-230/60/1

Compressor S
Blue Cap
Tan

C
R Black
Red

T2

T1

CC

L2

L1

Red 208V
Blue 230V

Black

Class 2

Transfo rmer 24V
Yellow Black/White

Green (93) Black (95)

Ground
Neutral Disconnect

L1

L1

Red (97)

L2

L2

L3

L3

Unit Power Supply 208-230/60/1 G
Black Red

Red (51)
Green (50)
White (52)

Red (53) Note 3

Dual Capacity Units Only
Ultra Tech CS
RCP

Gray T
Gray T RV

RV FP LAT LP HP

CC

Black (10) Black (09) Blue (08) Blue (07)
Black Black Yellow Yellow Orange (02) Orange (01)

Black (15)

Violet (14)

Blue(16) Blue(18)

P9 EH1 CC2 CC F C

P2

ES

LS

ALM ALG ACC COM

K5-Alarm Relay

ACC NO ACC NC

K6-Acc Relay

LO R C O/B G Y1 Y2 W DH P1
R

Com2 LED5
G RS485 NET

C

P8

K1-RV Relay

K3-CC2 Relay K2-CC Rel ay K4-Fan Relay
JW2

R

F

FG

CC

CCGCHCI2

CC2 LO

CC2 G

P5

REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPSP4 C R
F1-3A F

Aurora Base Control (ABC)

SW1 Test Mode

Com1 LED5
G RS485 NET
C R – + P7

RS485 EXP C R – + P6 CO C EH1 C EH2 P3

PWM

Status

CFM

LED3

G

Faul t

C

LED1

P13

R

Off On

FP1 ­ 15°F/30°F

1

FP2 ­ 15°F/30°F

2

RV ­ B/O

3

Acc ­ Dip 4

4

Acc ­ Dip 5

5

CC ­ Dual/Single

6

L Output Type

7

Reheat/Normal

8

SW2 Config

LED2

Y

Y1 G CC

Black/White Yellow Yellow
Blue

Bro wn (23)

Condensate

Green

Gray (61)

RH Gray (60) Note 4

From UPC

28

ECM Fan Mo tor

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.

Commercial Aurora UPC with Variable Speed ECM Motor 208-230/60/1

Notes:
1 ­ Optional, fac tory installed unit mounted dis connec t. 2 ­ Swap blue and red leads for 208V operation. 3 ­ Optional, fac tory installed internal isolation valve . 4 ­ Optional, factory installed reheat.

Legend

Factory Low Voltage Wiring Factory Line Vol tage Wiring Field Low Voltage Wiring Fi eld Li ne Voltage Wi ri ng Optional Block DC Voltage PCB Traces Field Zone Sensor Wiring Internal Ju nction Qui ck Con nect Terminal

L1

Field Wiring Lug

Ground
Relay Con tacts ­ N.O., N.C.
Capacitor
Fuse
CC ­ Compressor Contactor CO ­ Condensate Overfl ow Sensor ES ­ Emergency Shutdown HP ­ High Pressure Switch LP ­ Low Pressure Switch FP ­ Freeze Protection F1 ­ Fuse

1 2 3

T

Thermistor

Relay Coil

Switch – Condensate Overfl ow Switch – High pressure Switch – Low pressure

Polarized connector

G

Light Emitting Diode – Green

Y

Light Emitting Diode – Yellow

R

Light Emitti ng Diode – Red

SW1 ­ Push button SW2 ­ DIP package 8 position RB ­ Blower Relay RV ­ Reversi ng Valve Coi l PGM ­ Phase Guard Moni tor RH ­ Reheat Valve Coil

97P92 10/27

Aurora LED Flash Codes

SlowFlash 1 second on and 1 second off

Fast Flash 100 milliseconds on and 100 milliseconds off

Flash Code 100 milliseconds on and 400 milliseconds off with a 2 second pause before repe ating

Random Start Delay

Status LED (LED1, Green)

Fast Fl ash

Configuration LED (LED2, Yellow)

Fast Fl ash

Faul t LED (LED3, Red)

Fast Fl ash

Sta tus LED (LED1, Green)

Configuration LED (LED2, Yellow)

Fault LED (LED3, Red)

Normal Mode

ON

No Software Overi de Fl ash ECM Settin g Normal Mode

OFF

Control is Non-Functional

OFF DIP Switch Overide

Slow Flash Input Fault Lockout

Fl ash Code 1

Test Mode

Slow Flash ECM Configu re Mod e

Fast Fl ash High Pressure Lockout

Fl ash Code 2

Lockout Active

Fast Fl ash Reset Confi gure Mode

Off

Low Pressure Locko ut

Fl ash Code 3

Dehumidification Mo de

Fl ash Code 2

Low Air Coil Limi t Lockout – FP2 Fl ash Code 4

Reserved

Fl ash Code 3

Low Water Coil Limi t Lockout – FP1 Fl ash Code 5

Reserved

Fl ash Code 4

Reserved

Fl ash Code 6

Load Shed

Fl ash Code 5

Condensate Overflow Lockout

Fl ash Code 7

ESD

Fl ash Code 6

Over/Under Voltage Shutdown

Fl ash Code 8

Reserved

Fl ash Code 7

Reserved

Fl ash Code 9

Reserved

Fl ash Code 10

Air/Water Coil Limit Sensor Error Fl ash Code 11

Factory PWM CFM C

Accessor y Relay

Operation

SW2-4 SW2-5

Cycle with Blower

On On

Cycl e with Compressor

Off Off

Water Valve Slow Open On Off

Outdoor Air Damper

Off On

Aurora Timing Events

Event

Normal Mode

Test Mode

Random Start Delay

5 to 80 seconds

1 second

Compressor On Delay

5 seconds

< 1 second

Compressor Minimum On Time

2 minutes

5 seconds

Compressor Short Cycl e Delay

4 minutes

15 seconds

Blower Off Delay

30 seconds

2 seconds

Faul t Recogn itio n Delay ­ High Pressure

Less than 1 second Less than 1 second

Start-Up Bypass ­ Low Pressure

2 minutes

30 seconds

Faul t Recogn itio n Delay ­ Low Pressure

30 seconds

30 seconds

Start-Up Bypass ­ Low Water/Air Coil Limit

2 minutes

30 seconds

Faul t Recogn itio n Delay ­ Low Water/Air Coil Limit 30 seconds

30 seconds

Fault Recogn itio n Delay ­ Condensate Overflow

30 seconds

30 seconds

Thermostat Call Recognition Time

2 seconds

2 seconds

Auxi liary Heat Stagi ng Del ay

5 minutes

20 seconds

Emergency Heat Stagi ng Dela y

2 minutes

7.5 seconds

Water Valve Slow Open Delay

90 seconds

90 seconds

Reheat Delay

30 seconds

30 seconds

29

CC2 Factory Factory Use

HP P4

ECM PWM

HP

P13

LP

LP

FP2

FP2

FP1

FP1

SW1 Test

REV

REV

RV ­ K1

CC2 CC ­ K2

G

P5

LO

HI

CCG

CC

FG

F

R

F

CC Hi ­ K3 Fan ­ K4 Alarm ­ K5

CC

Acc ­ K6

G

Y1 JW2 Alarm
P2

Fi eld Connections

Off LED1 FP1 ­ 15oF/30oF

On 1 LED2

R FP2 ­ 15oF/30oF

2Y

Faul t

RV ­ B/O

ACC ­ Dip 4

LED3 G

ACC ­ Dip 5 CC ­ Dual/Single L ­ Pulse/Continuous

Status

Reheat/Normal

3 Config
4 5 6 7 8

SW2

AURORA BASE CONTROLTM
Com1 G

EH1
P3 EH2 C EH1 C CO N/A

Factory

RS485 Exp

P6

(+)

(-)

R

C

P7

RS 485

P11

P9

Factory Fan Connection

P8 Com2 G

DH

W

Y2

Y1

G

O/B

C

R

LO

P1

Fi eld Connections

RS485 NET CC C

3A-Fuse

DH

W

Y2

Y1

G

O/B

C

R

LO

ES LS ALM ALG ACC c ACC no ACC nc

RR
Pa

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.
Commercial Aurora UPC with Variable Speed ECM Motor 265/60/1

Compressor S
Blue Cap
Tan

C
R Black
Red

T2

T1

CC

L2

L1

Blue 265V
Black

Green (93) Black (95)

Ground
Neutral Disconnect

L1

L1

Red (97)

L2

L2

L3

L3

White

Black

Transfo rmer 24V
Black/White Yellow

Transfo rmer 2 30 V

Unit Power Supply 208-230/60/1 G
Yellow Red

Black Red

Class 2

Red (51)
Green (50)
White (52)

Red (53) Note 2

Dual Capacity Units Only
Ultra Tech CS
RCP

Gray T
Gray T RV

RV FP LAT LP HP

CC

Black (10) Black (09) Blue (08) Blue (07)
Black Black Yellow Yellow Orange (02) Orange (01)

Black (15)

Violet (14)

Blue(16) Blue(18)

P9 EH1 CC2 CC F C

P2

ES

LS

ALM ALG ACC COM

K5-Alarm Relay

ACC NO ACC NC

K6-Acc Relay

LO R C O/B G Y1 Y2 W DH P1
R

Com2 LED5
G RS485 NET

C

P8

K1-RV Relay

K3-CC2 Relay K2-CC Rel ay K4-Fan Relay
JW2

R

F

FG

CC

CCGCHCI2

CC2 LO

CC2 G

P5

REVREV FP1 FP1 FP2 FP2 LPS LPS HPSHPSP4 C R
F1-3A F

Aurora Base Control (ABC)

SW1 Test Mode

Com1 LED5
G RS485 NET
C R – + P7

RS485 EXP C R – + P6 CO C EH1 C EH2 P3

Status LED3
G

PWM CFM

Faul t

C

LED1

P13

R

Off On

FP1 ­ 15°F/30°F

1

FP2 ­ 15°F/30°F

2

RV ­ B/O

3

Acc ­ Dip 4

4

Acc ­ Dip 5

5

CC ­ Dual/Single

6

L Output Type

7

Reheat/Normal

8

SW2 Config
LED2

Y

Y1 G CC

Black/White Yellow Yellow
Blue

Bro wn (23)

Condensate

Green

Gray (61)

RH Gray (60) Note 3

From UPC
30

ECM Fan Mo tor

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.

Commercial Aurora UPC with Variable Speed ECM Motor 208-230/60/1

Notes:
1 ­ Optional, fac tory installed unit mounted dis connec t. 3 ­ Optional, fac tory installed internal isolation valve . 4 ­ Optional, factory installed r eheat.

Legend

Factory Low Voltage Wiring Factory Line Vol tage Wiring Field Low Voltage Wiring Fi eld Li ne Voltage Wi ri ng Optional Block DC Voltage PCB Traces Field Zone Sensor Wiring Internal Ju nction Qui ck Con nect Terminal

L1

Field Wiring Lug

Ground
Relay Con tacts ­ N.O., N.C.
Capacitor
Fuse
CC ­ Compressor Contactor CO ­ Condensate Overfl ow Sensor ES ­ Emergency Shutdown HP ­ High Pressure Switch LP ­ Low Pressure Switch FP ­ Freeze Protection F1 ­ Fuse

1 2 3

T

Thermistor

Relay Coi l

Switch – Condensate Overfl ow Switch – High pressure Switch – Low pressure

Polarized connector

G

Light Emitti ng Diode – Green

Y

Light Emitting Diode – Yellow

R

Light Emitti ng Diode – Red

SW1 ­ Push button SW2 ­ DIP package 8 position RB ­ Blower Relay RV ­ Reversi ng Valve Coi l PGM ­ Phase Guard Moni tor RH ­ Reheat Valve Coil

97P92 11/01

Aurora LED Flash Codes

SlowFlash 1 second on and 1 second off

Fast Flash 100 milliseconds on and 100 milliseconds off

Flash Code 100 milliseconds on and 400 milliseconds off with a 2 second pause before repe ating

Random Start Delay

Status LED (LED1, Green)

Fast Fl ash

Configuration LED (LED2, Yellow)

Fast Fl ash

Faul t LED (LED3, Red)

Fast Fl ash

Sta tus LED (LED1, Green)

Configuration LED (LED2, Yellow)

Fault LED (LED3, Red)

Normal Mode

ON

No Software Overi de Fl ash ECM Settin g Normal Mode

OFF

Control is Non-Functional

OFF DIP Switch Overide

Slow Flash Input Fault Lockout

Fl ash Code 1

Test Mode

Slow Flash ECM Configu re Mod e

Fast Fl ash High Pressure Lockout

Fl ash Code 2

Lockout Active

Fast Flash Reset Confi gure Mode

Off

Low Pressure Locko ut

Fl ash Code 3

Dehumidification Mo de

Fl ash Code 2

Low Air Coil Limit Lockout – FP2 Fl ash Code 4

Reserved

Fl ash Code 3

Low Water Coil Limi t Lockout – FP1 Fl ash Code 5

Reserved

Fl ash Code 4

Reserved

Fl ash Code 6

Load Shed

Fl ash Code 5

Condensate Overflow Lockout

Fl ash Code 7

ESD

Fl ash Code 6

Over/Under Voltage Shutdown

Fl ash Code 8

Reserved

Fl ash Code 7

Reserved

Fl ash Code 9

Reserved

Fl ash Code 10

Air/Water Coil Limit Sensor Error Fl ash Code 11

PWM CFM
C

Accessor y Relay

Operation

SW2-4 SW2-5

Cycle with Blower

On On

Cycl e with Compressor

Off Off

Water Valve Slow Open On Off

Outdoor Air Damper

Off On

Aurora Timing Events

Event

Normal Mode

Random Start Delay

5 to 80 seconds

Compressor On Delay

5 seconds

Compressor Minimum On Time

2 minutes

Compressor Short Cycl e Delay

4 minutes

Blower Off Delay

30 seconds

Faul t Recogn itio n Delay ­ High Pressure

Less than 1 second

Start-Up Bypass ­ Low Pressure

2 minutes

Faul t Recogn itio n Delay ­ Low Pressure

30 seconds

Start-Up Bypass ­ Low Water/Air Coil Limit

2 minutes

Fault Recogn itio n Delay ­ Low Water/Air Coil Limit

30 seconds

Faul t Recogn itio n Delay ­ Condensate Overfl ow

30 seconds

Thermostat Call Recognition Time

2 seconds

Auxi liary Heat Stagi ng Del ay

5 minutes

Emergency Heat Staging Dela y

2 minutes

Water Valve Slow Open Delay

90 seconds

Reheat Delay

30 seconds

Test Mode 1 second < 1 second 5 seconds 15 seconds 2 seconds Less than 1 second 30 seconds 30 seconds 30 seconds 30 seconds 30 seconds 2 seconds 20 seconds 7.5 seconds 90 seconds 30 seconds

CC2 Factory Factory Use

Factory Factory

HP P4

ECM PWM

HP

P13

LP

LP

FP2

FP2

FP1

FP1

SW1 Test

REV

REV

RV ­ K1

CC2 CC ­ K2

G

P5

LO

HI

CCG

CC

FG

F

R

F

CC Hi ­ K3 Fan ­ K4 Alarm ­ K5

CC

Acc ­ K6

G

Y1 JW2 Alarm
P2

Fi eld Connections

Off LED1 FP1 ­ 15oF/30oF

On 1 LED2

R FP2 ­ 15oF/30oF

2Y

Faul t

RV ­ B/O

ACC ­ Dip 4

LED3 G

ACC ­ Dip 5 CC ­ Dual/Single L ­ Pulse/Continuous

Status

Reheat/Normal

3 Config
4 5 6 7 8

SW2

AURORA BASE CONTROLTM
Com1 G

EH1
P3 EH2 C EH1 C CO N/A

RS485 Exp

P6

(+)

(-)

R

C

P7

RS 485

P11

P9

Factory Fan Connection

P8 Com2 G

DH

W

Y2

Y1

G

O/B

C

R

LO

P1

Fi eld Connections

3A-Fuse

DH

W

Y2

Y1

G

O/B

C

R

LO

ES LS ALM ALG ACC c ACC no ACC nc

RR

31

RS485 NET CC C

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Wiring Schematics cont.
Aurora Control and UPC

To ABC – P8
12345678

BACnet or N2 Network
Connections
Devices Must Be Wired in Daisy Chain Configuration

Orange Red
White Black

Blue Green
Brown Yellow

NET+ NETCOM NET+ NETCOM

Optional LON Add-On Module
LON OC

LON Network Connections

Devices Must Be Wired in Daisy Chain Configuration

Service
LED1

21

LED2

Tx
LED3
Rx
LED4
Net

ECHELON

12

12

GND
ZS Sensor 1 RNET+

Addr: 0

RNET-

+12V

ZS Sensor 2 Addr: 1

GND RNET+ RNET-
+12V

ZS Sensor 3 Addr: 2

GND RNET+ RNET-
+12V

NET+ NETCOM
NET+ NETN/C N/C Signal

LED1 TX
LED2 RX
LON ADAPTER
PORT
LED6 TX
LED7 2W RX

4W

GND RNET+ RNET+12V
RNET

GND LN+ LN+12
/S
LOCAL ACCESS

POWER
GND 24 VAC
LED3 POWER
FORMAT BATT
Communication Options
NOTE 1

12345678

LED4 RUN
LED5 ERR

ON
TEN’S
89 0 12 73
654

89 0 12

76

5

3 4

ONE’S

MAC Address Setting

ZS Sensor Information

Zone Sensors can be wired in daisy chain as show or in a star or hybrid configuration. Maximum of 5 sensors per UPC. Maximum allowable load 210mA. See the UPC install manual for possible sensor combinations.

DIP Switch Value
1 2 4 8

ON 1 2 34

Each ZS sensor must have a unique address, but the addresses do not need to be sequential. Use the DIP switches on the back of the ZS sensor to set an address from 0 to 4. (0 is the factory default.) Each DIP switch has the value shown in the figure to the left. Turn on as many DIP switches as you need so that their total value equals the address.

32

Notes
1. Use DIP Switches 5 ­ 8 to change communication protocol and DIP switches 1 ­ 2 to change BACnet baud rate

Legend
Factory Low Voltage Wiring Field Low Voltage Wiring 12345678 RJ45 Connector

Page 1

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Base Control
Aurora `Base’ Control

Field Selectable Options via Hardware
DIP Switch (SW1) ­ Test/Configuration Button (See SW1 Operation Table)

NOTE: Refer to the Aurora Base Control Application and Troubleshooting Guide and the Instruction Guide: Aurora Interface and Diagnostics (AID) Tool for additional information.
Control Features
Software ABC Standard Version 3.0 Single or Dual Capacity Compressors Either single or dual capacity compressors can be operated.
Variable Speed ECM Blower Motor Option (If Applicable) A Variable Speed ECM blower motor can be driven directly using the onboard PWM output. Four blower speeds are available based upon the G, Y1, Y2, and W input signals to the board. The blower speeds can be changed either by the ECM manual configurations mode method or by using the Aurora AID Tool directly. All four blower speeds can be set to the same speed if desired.
5-Speed ECM Blower Motor Option (If Applicable) A 5-Speed ECM blower motor will be driven directly using the thermostat connections. Any of the G, Y1, or Y2/W signals can drive any of the 5 available pre-programmed blower speeds on the motor. All 5 Series “G” vintage units will be wired this way at the factory.
Other Control Features
· Random start at power up · Anti-short cycle protection · High and low pressure cutouts · Loss of charge · Water coil freeze detection · Air coil freeze detection · Over/under voltage protection · Condensate overflow sensor · Load shed · Dehumidification (where applicable) · Emergency shutdown · Hot gas reheat operation (where applicable) · Diagnostic LED · Test mode push button switch · Two auxiliary electric heat outputs · Alarm output · Accessory output with N.O. and N.C. · Two Modbus communication Ports

Test Mode
The control is placed in the test mode by holding the push button switch SW1 for 2 – 5 seconds. In test mode most of the control timings will be shortened by a factor of sixteen (16). LED3 (green) will flash at 1 second on and 1 second off. Additionally, when entering test mode LED1 (red) will flash the last lockout one time. Test mode will automatically time out after 30 minutes. Test mode can be exited by pressing and holding the SW1 button for 2 to 5 seconds or by cycling the power. NOTE: Test mode will automatically be exited after 30 minutes.

Variable Speed ECM Configuration Mode
(If Applicable)
The control is placed in the ECM configuration mode by holding the pushbutton switch SW1 for 5 to 10 seconds, the high, low, and “G” ECM speeds can be selected by following the LED display lights. LED2 (yellow) will fast flash when entering the ECM configuration. When setting “G” speed LED3 (green) will be continuously lit, for low speed LED1 (red) will be continuously lit, and for high speed both LED3 (green) and LED1 (red) will be continuously lit. During the ECM configuration mode LED2 (yellow) will flash each of the 12 possible blower speeds 3 times. When the desired speed is flashed press SW1, LED2 will fast flash until SW1 is released. “G” speed has now been selected. Next select low speed, and high speed blower selections following the same process above. After third selection has been made, the control will exit the ECM configuration mode. Aux fan speed will remain at default or current setting and requires the AID Tool for adjustment.

Reset Configuration Mode
The control is placed in reset configuration mode by holding the push button switch SW1 for 50 to 60 seconds. This will reset all configuration settings and the EEPROM back to the factory default settings. LED3 (green) will turn off when entering reset configuration mode. Once LED3 (green) turns off, release SW1 and the control will reset.

DIP Switch (SW2)
SW2-1 FP1 Selection ­ Low water coil temperature limit setting for freeze detection. On = 30°F; Off = 15°F.
SW2-2 FP2 Selection ­ On = 30°F; Off = N/A SW2-3 RV ­ O/B – thermostat type. Heat pump
thermostats with “O” output in cooling or “B” output in Heating can be selected. On = O; Off = B. SW2-4 Access Relay Operation (P2) and 2-5

Access Relay Operation Cycle with Blower
Cycle with Compressor Water Valve Slow Opening Cycle with Comm. T-stat Hum Cmd

SW2-4 ON OFF ON OFF

SW2-5 ON OFF OFF ON

33

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Base Control cont.

Cycle with Blower – The accessory relay will cycle with the blower output.
Cycle with Compressor – The accessory relay will cycle with the compressor output.
Water Valve Slow Opening – The accessory relay will cycle and delay both the blower and compressor output for 90 seconds.
SW2-6 CC Operation ­ selection of single or dual capacity compressor. On = Single Stage; Off = Dual Capacity
SW2-7 Lockout and Alarm Outputs (P2) ­ selection of a continuous or pulsed output for both the LO and ALM Outputs. On = Continuous; Off = Pulsed
SW2-8 Future Use
Alarm Jumper Clip Selection From the factory, ALM is connected to 24 VAC via JW2. By cutting JW2, ALM becomes a dry contact connected to ALG.
Variable Speed ECM Blower Speeds The blower speeds can be changed either by using the ECM manual configurations mode method or by using the Aurora AID Tool directly (see Instruction Guide: Aurora Interface and Diagnostics (AID) Tool topic).
Field Selectable Options via Software
(Selectable via the Aurora AID Tool) ECM Blower Speeds An ECM blower motor can be driven directly using the onboard PWM output. Four blower speeds are available, based upon the “G”, Y1 (low), Y2 (high), and Aux input signals to the board. The blower speeds can be changed either by the ECM manual configurations mode method (see ECM Configuration Mode topic) or by using the Aurora AID Tool directly. All four blower speeds can be set to the same speed if desired. Aux blower speed will remain at default or current setting and requires the AID Tool for adjustment.

Lockout ­ when locked out, the blower will operate continuously in “G” speed, and PSC blower motor output will remain on. The Alarm output (ALM) and Lockout output (L) will be turned on. The fault type identification display LED1 (Red) shall flash the fault code. To reset lockout conditions with SW2-8 On, thermostat inputs “Y1”, “Y2”, and “W” must be removed for at least 3 seconds. To reset lockout conditions with SW2-8 Off, thermostat inputs “Y1”, “Y2”, “W”, and “DH” must be removed for at least 3 seconds. Lockout may also be reset by turning power off for at least 30 seconds or by enabling the emergency shutdown input for at least 3 seconds.
Lockout With Emergency Heat – if the control is locked out in the heating mode, and a Y2 or W input is received, the control will operate in the emergency heat mode while the compressor is locked out. The first emergency heat output will be energized 10 seconds after the W input is received, and the blower will shift to high speed. If the control remains locked out, and the W input is present, additional stage of emergency heat will stage on after 2 minutes. When the W input is removed, all of the emergency heat outputs will turn off, and the ECM blower will shift to “G” speed and PSC blower motor output will remain on.
High Pressure ­ fault is recognized when the Normally Closed High Pressure Switch, P4-9/10 opens, no matter how momentarily. The High Pressure Switch is electrically in series with the Compressor Contactor and serves as a hardwired limit switch if an overpressure condition should occur.
Low Pressure – fault is recognized when the Normally Closed Low Pressure Switch, P4-7/8 is continuously open for 30 seconds. Closure of the LPS any time during the 30 second recognition time restarts the 30 second continuous open requirement. A continuously open LPS shall not be recognized during the 2 minute startup bypass time.
Loss of Charge ­ fault is recognized when the Normally Closed Low Pressure Switch, P4-7/8 is open prior to the compressor starting.

Safety Features
The following safety features are provided to protect the compressor, heat exchangers, wiring and other components from damage caused by operation outside of design conditions.
Fuse ­ a 3 amp automotive type plug-in fuse provides protection against short circuit or overload conditions.
Anti-Short Cycle Protection ­ 4 minute anti-short cycle protection for the compressor.
Random Start ­ 5 to 80 second random start upon power up.
Fault Retry ­ in the fault condition, the control will stage off the outputs and then “try again” to satisfy the thermostat Y input call. Once the thermostat input calls are satisfied, the control will continue on as if no fault occurred. If 3 consecutive faults occur without satisfying the thermostat Y input call, then the control will go to Lockout mode.

Condensate Overflow – fault is recognized when the impedance between this line and 24 VAC common or chassis ground drops below 100K ohms for 30 seconds continuously.
Freeze Detection (Coax) – set points shall be either 30°F or 15°F. When the thermistor temperature drops below the selected set point, the control shall begin counting down the 30 seconds delay. If the thermistor value rises above the selected set point, then the count should reset. The resistance value must remain below the selected set point for the entire length of the appropriate delay to be recognized as a fault. This fault will be ignored for the initial 2 minutes of the compressor run time.
Freeze Detection (Air Coil) – uses the FP2 input to protect against ice formation on the air coil. The FP2 input will operate exactly like FP1 except that the set point is 30 degrees and is not field adjustable.

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VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Base Control cont.

Over/Under Voltage Shutdown – An over/under voltage condition exists when the control voltage is outside the range of 18 VAC to 30 VAC. If the over/under voltage shutdown lasts for 15 minutes, the lockout and alarm relay will be energized. Over/under voltage shutdown is selfresetting in that if the voltage comes back within range of 18 VAC to 30 VAC for at least 0.5 seconds, then normal operation is restored.
Operation Description
Power Up – The unit will not operate until all the inputs and safety controls are checked for normal conditions. The unit has a 5 to 80 second random start delay at power up. Then the compressor has a 4 minute anti-short cycle delay after the random start delay.
Standby In standby mode, Y1, Y2, W, DH, and G are not active. Input O may be active. The blower and compressor will be off.
Heating Operation Single Compressor Heating, 2nd Stage (Y1, Y2) The compressor will be staged to full capacity 20 seconds after Y2 input is received. The ECM blower will shift to high speed seconds after the Y2 input is received.
Dual Compressor Heating, 2nd Stage (Y1, Y2) In dual compressor operation, two ABC boards used in 24 VAC operation, there will be a Y2 call to the Y1 input on the second ABC. The compressor will stage to full capacity 30 seconds after Y1 input is received to the second board.
Single Compressor Heating, 3rd Stage (Y1, Y2, W) The hot water pump is de- energized and the first stage of electric heat is energized 10 seconds after the W command is received. If the demand continues the second stage of electric heat will be energized after 5 minutes.
Dual Compressor Heating, 3rd Stage (Y1, Y2, W) The first stage of electric heat is energized 10 seconds after the W command is received. If the demand continues the second stage of electric heat will be energized after 5 minutes
Emergency Heat (W) – The blower will be started on “G” speed, 10 seconds later the first stage of electric heat will be turned on. 5 seconds after the first stage of electric heat is energized the blower will shift to Aux speed. If the emergency heat demand is not satisfied after 2 minutes the second electric heat stage will be energized.

Cooling Operation In all cooling operations, the reversing valve directly tracks the O input. Thus, anytime the O input is present, the reversing valve will be energized.
Single Compressor Cooling, 2nd Stage (Y1, Y2, 0) The compressor will be staged to full capacity 20 seconds after Y2 input was received. The ECM blower will shift to high speed 15 seconds after the Y2 input was received.
Dual Compressor Cooling, 2nd Stage (Y1, Y2, O) In dual compressor operation, two ABC boards used in 24 VAC operation, there will be a Y2 call to the Y1 input on the second ABC. The compressor will stage to full capacity 30 seconds after Y1 input is received to the second board.
Blower (G) – The blower will start immediately upon receiving a thermostat G command. If there are no other commands from the thermostat the ECM will run on “G” speed until the G command is removed. Regardless of blower input (G) from the thermostat, the blower will remain on for 30 seconds at the end of each heating, cooling, and emergency heat cycle.
Dehumidification (Y1, O, DH or Y1, Y2, O, DH) – When a DH command is received from the thermostat during a compressor call for cooling the ECM blower speed will be reduced by 15% to increase dehumidification.
Emergency Shutdown – Four (4) seconds after a valid ES input, P2-7 is present, all control outputs will be turned off and remain off until the emergency shutdown input is no longer present. The first time that the compressor is started after the control exits the emergency shutdown mode, there will be an anti-short cycle delay followed by a random start delay. Input must be tied to common to activate.
Continuous Blower Operation – The blower output will be energized any time the control has a G input present, unless the control has an emergency shutdown input present. The blower output will be turned off when G input is removed.
Load Shed – The LS input disables all outputs with the exception of the blower output. When the LS input has been cleared, the anti-short cycle timer and random start timer will be initiated. Input must be tied to common to activate.

Blower (G) – The blower will start immediately upon receiving a thermostat G command. If there are no other commands from the thermostat the ECM will run on “G” speed until the G command is removed. Regardless of blower input (G) from the thermostat, the blower will remain on for 30 seconds at the end of each heating cycle.

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VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Base Control cont.

Aurora `Base’ Control LED Displays
These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain English via the Aurora AID Tool.

Status LED (LED3, Green)
Description of Operation Normal Mode Control is Non-functional Test Mode Lockout Active Dehumidification Mode (Future Use) (Future Use) Load Shed ESD (Future Use)

Fault LED, Green ON OFF
Slow Flash Fast Flash Flash Code 2 Flash Code 3 Flash Code 4 Flash Code 5 Flash Code 6 Flash Code 7

Configuration LED (LED2, Yellow)

Description of Operation No Software Overwritten DIP Switch was Overwritten ECM Configuration Mode

Configuration LED, Yellow Flashing ECM Setting Slow Flash Fast Flash

Fault LED (LED1, Red)

Red Fault LED

LED Flash Code*

Lockout

Reset/ Remove

Normal – No Faults

OFF

­

ABC Basic Faults

Fault – Input

1

No

Auto

Fault – High Pressure

2

Yes Hard or Soft

Fault – Low Pressure

3

Yes Hard or Soft

Fault – Freeze Detection FP2

4

Yes Hard or Soft

Fault – Freeze Detection FP1

5

Yes Hard or Soft

Fault – Condensate Overflow

7

Yes Hard or Soft

Fault – Over/Under Voltage

8

No

Auto

Fault – FP1 & FP2 Sensor Error

11

Yes Hard or Soft

NOTE: All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50, etc. are skipped.

Aurora Interface and Diagnostics (AID) Tool
The Aurora Interface and Diagnostics (AID) Tool is a device that is a member of the Aurora network. The AID Tool is used to troubleshoot equipment which uses the Aurora control via Modbus RTU communication. The AID Tool provides diagnostics, fault management, ECM setup, and system configuration capabilities to the Aurora family of controls. An AID Tool is recommended, although not required, for ECM airflow settings. The AID Tool simply plugs into the exterior of the cabinet in the AID Tool port.

ABC Control Board Layout

Factory PWM CFM C

CC2 Factory Factory Use

HP P4

ECM PWM

HP

P13

LP

LP

FP2

FP2

FP1

FP1

SW1 Test

REV

REV

RV ­ K1

CC2 CC ­ K2

G P5 LO HI CCG CC FG F R
F

CC Hi ­ K3 Fan ­ K4 Alarm ­ K5

CC

Acc ­ K6

G

Y1
JW2 Alarm
P2

Field Connections

Off LED1 FP1 ­ 15oF/30oF

On 1 LED2

R FP2 ­ 15oF/30oF

2Y

Faul t

RV ­ B/O

ACC ­ Dip 4

3 Config 4

LED3

ACC ­ Dip 5

CC ­ Dual/Single

G L ­ Pulse/Continuous

Status

Reheat/Normal

5 6 7 8 SW2

AURORA BASE CONTROLTM
Com1 G

Factory

RS485 Exp

EH1
P3 EH2 C EH1 C CO N/A
P6 (+) (-) R C
P7

RS 485

P11

P9

Factory Fan Connection

P8 Com2 G

DH

W

Y2

Y1

G

O/B

C

R

LO

P1

Field Connections

RS485 NET CC C

3A-Fuse

DH

W

Y2

Y1

G

O/B

C

R

LO

ES LS ALM ALG ACC c ACC no ACC nc

RR

36

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Advanced Control

Aurora Advanced’ Control Features The AuroraAdvanced’ Control system expands on the capability of the Aurora Base’ Control (ABC) by adding the Aurora Expansion Board (AXB). All of the preceding features of the AuroraBase’ Control are included. The following control description is of the additional features and capability of the Aurora advanced control.
It is highly recommended the installing/servicing contractor obtain an Aurora Interface and Diagnostic Tool (AID) and specialized training before attempting to install or service an Aurora `Advanced’ control system.
The additional AXB features include the following:

AXB DIP Switch
DIP 1 – ID: This is the AXB ModBus ID and should always read On.
DIP 2 & 3 – Future Use DIP 4 & 5 – Accessory Relay2: A second, DIP configurable,
accessory relay is provided that can be cycled with the compressor 1 or 2 , blower, or the Dehumidifier (DH) input. This is to complement the Accessory 1 Relay on the ABC board.

Position DIP 4

1

ON

2

OFF

3

ON

4

OFF

DIP 5 ON ON
OFF OFF

Description Cycles with Fan or ECM (or G) Cycles with CC1 first stage of compressor
or compressor spd 6 Cycles with CC2 second stage of compressor or compressor spd 7-12 Cycles with DH input from ABC board

Advanced Hot Water Generator Control (Domestic Hot Water Option)
In lieu of the `Base Hot Water Generator Control’, the Advanced features an AID Tool selectable temperature limit and microprocessor control of the process. This will maximize hot water generation and prevent undesirable energy use. An alert will occur when the hot water input temperature is at or above setpoint (100°F – 140°F) for 30 continuous seconds (130°F is the default setting). This alert will appear as an E15 on the AID Tool and the hot water pump de-energizes. Hot water pump operations resume on the next compressor cycle or after 15 minutes of continuous compressor operation during

the current thermostat demand cycle. Since compressor hot gas temperature is dependent on loop temperature in cooling mode, loop temperatures may be too low to allow proper heating of water. The control will monitor water and refrigerant temperatures to determine if conditions are satisfactory for heating water. LED1 (red LED) will flash code 15 when the DHW limit is reached and when conditions are not favorable for water heating. Error code 15 will also be displayed on the AID Tool in the fault screen. This flash code is a noncritical alert and does not necessarily indicate a problem.
Compressor Monitoring The AXB includes two current transducers to monitor the compressor current and starting characteristics. Open circuits or welded contactor faults will be detected. A fault will produce an E10 code.
IntelliZone2 Zoning Compatibility (Optional IntelliZone2 Zoning) A dedicated input to connect and communicate with the IntelliZone2 (IZ2) zoning system is provided on P7. The is a dedicated communication port using a proprietary ModBus protocol. An AXB can be added to other selected ABC-only systems as well. Then an advanced communicating IntelliZone2 zoning system can be added to ABC-only systems. Consult the IntelliZone2 literature for more information.
Variable Speed Pump This input and output are provided to drive and monitor a variable speed pump. The VS pump output is a PWM signal to drive the variable speed pump. The minimum and maximum level are set using the AID Tool. 75% and 100% are the default settings respectively. The VS data input allows a separate PWM signal to return from the pump giving fault and performance information. Fault received from the variable speed pump will be displayed as E16.
Modulating Water Valve This output is provided to drive a modulating water valve. Through advanced design the 0-10VDC valve can be driven directly from the VS pump output. The minimum and maximum level are set in the same way as the VS pump using the AID Tool. 75% and 100% are the default settings respectively.
Loop Pump Linking This input and output are provided so that two units can be linked together with a common flow center. When either unit has a call for loop pump, both unit’s loop pump relays and variable speed pumps are energized. The flow center then can simply be wired to either unit. The output from one unit should be routed to the input of the other. If daisy chained up to 16 heat pumps can be wired and linked together in this fashion.

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VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Advanced Control cont.

Advanced Communication Ports Communication ports P6 and P8 will provide future expansion via dedicated protocols. These are for future use.
Smart Grid-On Peak (SG) Input The ‘On Peak’ input was designed to allow utilities to utilize simple radio controlled switches to control the On Electric Peak behavior of the 5 and 7 Series Geothermal Heat Pumps. With a closed contact signal, this input will limit the operation and thus the power consumption of the unit by one of the below selections. The AID Tool will allow configuration of this input for the action of:
· No Action · Disable compressor operation until removed · Go to On Peak thermostat settings until removed
[Requires Com T-Stat] (Future Release) · Compressor limited to 50% or low cap until removed
[dual capacity or variable speed only] (Future Release) · Disable compressor operation for 1/2 hr (can be
removed immediately) (Future Release)
Then Flash Code 7 on the Green LED for the ‘On Peak’ mode. And On Peak will display on communicating thermostats.
Home Automation 1 and 2 Inputs The Home automation inputs are simple closed contact inputs that will trigger an AID Tool and thermostat alert for the homeowner. These would require optional sensors and or equipment for connection to the AXB board. With two inputs two different sensors can be selected. The selected text will then be displayed on the AID Tool and communicating thermostats. These events will NOT alter functionality or operation of the heat pump/accessories and is for homeowner/service notification only.
Home Automation 1 – E23 HA1 With a closed dry contact signal, this input will cause an alarm and Alert Code 23 to indicate on the stat or flash on ABC. The AID Tool will allow configuration of this input between the following selections:
· No Action · Home Automation Fault [no lockout info only] – Output from home automation system · Security Alarm [no lockout info only] – Output from home security · Sump Alarm Fault [no lockout info only] – Switch output from sump sensor · Smoke/CO Alarm Fault [no lockout info only] – Switch output from Smoke/CO sensor · Dirty Filter Alarm [no lockout info only] – Output from dirty filter sensor

Home Automation 2 ­ E24 HA2 With a closed dry contact signal, this input will cause an alarm and Alert Code 24 to indicate on the stat or flash on ABC. The AID Tool will allow configuration of this input between the following selections:
· No Action · Home Automation Fault [no lockout info only] – Output from home automation system · Security Alarm [no lockout info only] – Output from home security · Sump Alarm Fault [no lockout info only] – Switch output from sump sensor · Smoke/CO Alarm Fault [no lockout info only] – Switch output from Smoke/CO sensor · Dirty Filter Alarm [no lockout info only] – Output from dirty filter sensor
Monitoring Sensor Kits
Energy Monitoring (Standard Sensor Kit on `Advanced’ models) The Energy Monitoring Kit includes two current transducers (blower and electric heat) added to the existing two compressor sensors so that the complete power usage of the heat pump can be measured. The AID Tool provides configuration detail for the type of blower motor and a line voltage calibration procedure to improve the accuracy. This information can be displayed on the AID Tool or selected communicating thermostats. The TPCM32U03/04 will display instantaneous energy use while the color touchscreen TPCC32U01 will in addition display a 13 month history in graph form.
Refrigerant Monitoring (optional sensor kit) The optional Refrigerant Monitoring Kit includes two pressure transducers, and three temperature sensors, heating liquid line, suction temperature and existing cooling liquid line (FP1). These sensors allow the measurement of discharge and suction pressures, suction and liquid line temperatures as well as superheat and subcooling. This information will only be displayed on the AID Tool.
Performance Monitoring (optional sensor kit) The optional Performance Monitoring Kit includes three temperature sensors, entering and leaving water, leaving air temperature and a water flow rate sensor. With this kit heat of extraction and rejection will be calculated. This requires configuration using the AID Tool for selection of water or antifreeze.

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VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact

Controls – Aurora Advanced Control cont.

Special Modes and Applications
5-Speed ECM Blower Motor Normally the 5-Speed ECM motor can be driven off of thermostat signals and the ABC connector P9. Communicating thermostats, however present a special problem in this application since they operate without 24 VAC thermostat signals. The ABC board is wired to operate these systems from the alternate relay output signals CC1, CC2, Fan, and EH1 and should be wired for this.
Communicating Digital Thermostats The Aurora controls system also features either monochromatic or color touch screen graphic display thermostats for user interface. These displays not only feature easy to use graphical interface but display alerts and faults in plain English. Many of the features discussed here may not be applicable without these thermostats.
Dehumidification ­ Passive In passive dehumidification mode, the airflow is reduced by 15% from the heating airflow setting. If cooling airflow is set to +5, -5 or -10% of heating airflow it will automatically be set to -15% of heating airflow whenever the dehumidification call is present in the communicating stat or from the thermostat input DH. If the airflow for cooling is already set to -15% no airflow change will be noticed from normal cooling. Dehumidification mode will be shown on the ABC and the communicating thermostats.

Aurora `Advanced’ Control LED Displays
These three LEDs display the status, configuration, and fault codes for the control. These can also be read in plain English via the Aurora AID Tool.

Status LED (LED3, Green)
Description of Operation Normal Mode Control is Non-functional Test Mode Lockout Active Dehumidification Mode Load Shed Emergency Shutdown On Peak Mode (Future Use) (Future Use)

Fault LED, Green ON OFF
Slow Flash Fast Flash Flash Code 2 Flash Code 5 Flash Code 6 Flash Code 7 Flash Code 8 Flach Code 9

Configuration LED (LED2, Yellow)

Description of Operation No Software Overwritten DIP Switch Overwritten ECM Configuration Mode Reset Configuration Mode

Configuration LED, Yellow ECM Setting Slow Flash Fast Flash OFF

Fault LED (LED1, Red)

Red Fault LED
Normal – No Faults Fault-Input Fault-High Pressure

LED Flash Code * Off 1 2

Lockout
No Yes

Reset/ Remove
Auto Hard or Soft

Fault Condition Summary
Tstat input error. Autoreset upon condition removal. HP switch has tripped (>600 psi)

ABC Basic Faults

Fault-Low Pressure

3

Yes Hard or Soft Low Pressure Switch has tripped (<40 psi for 30 continuous sec.)

Fault-Freeze Detection FP2

4

Yes Hard or Soft Freeze protection sensor has tripped (<15 or 30 degF for 30 continuous sec.)

Fault-Freeze Detection FP1

5

Yes Hard or Soft Freeze protection sensor has tripped (<15 or 30 degF for 30 continuous sec.)

Fault-Condensate Overflow

7

Yes Hard or Soft Condensate switch has shown continuity for 30 continuous sec.

Fault-Over/Under Voltage

8

No

Auto

Instantaneous voltage is out of range. **Controls shut down until resolved.

Fault-FP1 Snsr Error

11

Yes Hard or Soft If FP1 Sensor Error

Fault-Compressor Monitor

10

Yes Hard or Soft Open Crkt, Run, Start or welded cont

ABC & AXB Advanced Faults

Non-CriticAXBSnsrErr

13

No

Auto

Any Other Sensor Error

CriticAXBSnsrErr

14

Yes Hard or Soft Sensor Error for EEV or HW

Alert-HotWtr

15

No

Auto

HW over limit or logic lockout. HW pump deactivated.

Fault-VarSpdPump

16

No

Auto

Alert is read from PWM feedback.

Not Used

17

No

Auto

IZ2 Com Fault. Autoreset upon condition removal.

Non-CritComErr

18

No

Auto

Any non-critical com error

Fault-CritComErr

19

No

Auto

Any critical com error. Auto reset upon condition removal

Alarm – Low Loop Pressure

21

No

Auto

Loop pressure is below 3 psi for more than 3 minutes

Alarm – Home Automation 1

23

No

Auto

Closed contact input is present on Dig 2 input – Text is configurable

Alarm – Home Automation 2

24

No

Auto

Closed contact input is present on Dig 3 input – Text is configurable

NOTES: *All codes >11 use long flash for tens digit and short flash for the ones digit. 20, 30, 40, 50 etc. are skipped! Alert’ is a noncritical sensor or function that has failed. Normal operation of the heat pump is maintained but service is desired at some point.

39

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact
Controls – UPC DDC Control (optional)

Aurora UPC Controller

ZS Series Sensors

The Aurora Unitary Protocol Converter (UPC) is designed to add-on to any Aurora based heat pump control. The Aurora Unitary Protocol Convertor (UPC) is designed to allow water source heat pumps to be integrated into Building Automation Systems (BAS) with ease. The Aurora UPC is an integrated solution and communicates directly with the Aurora Heat Pump Controls and allows access/control of a variety of internal Aurora heat pump operations such as sensors, relay operation, faults and other information. In turn, the UPC then converts internal Aurora Modbus protocol to BACnet MS/TP, LON, or N2 protocols and communicates to the BAS system. This provides the great benefit of complete control integration and a myriad of information available to the BAS from the heat pump control. Plus it also allows individual unit configuration such as ECM fan speeds or freeze protection setting directly over the BAS without the need for access to the actual heat pump. The Aurora UPC is programmed using the powerful Eikon object oriented.
The Aurora UPC is implemented with the Aurora Base Controller (ABC) heat pump control into our latest water source heat pumps. This will allow for a BAS to integrate

and communicate to the heat pump thru a choice of 3 different communication protocols. The Aurora UPC has the ability to communicate BACnet MS/TP, N2 open, or LonWorks (requires LON Plugin card). This flexibility is possible due to the onboard dipswitches which allow for the desired protocol and baud rate to be selected in the field. All zone temperatures and zone sensors are connected to the UPC on an RNet bus, simplifying hook up at the unit. RNet sensors can include a combination of zone temperature and humidity, CO2, and VOC sensors. The UPC includes built-in support for a custom configurable keypad/display unit – BACview6 (4-line by 40 character per line display) or BACview5 (2-line by 16 character per line display). Up to 2 Keypad/display units can be mounted remotely for configuration and troubleshooting.
There are an extensive number of points that the UPC has available over the network for integration into the BAS. Control programmers need to carefully determine which points they want to add into the BAS database. A list of the BACnet points, N2 points, and LON SNVTs are available along with their individual point descriptions by contacting the Commercial Solutions Group at 1-877-677-4420.

40

VERSATEC 500 0.75-6 TON INSTALLATION MANUAL – Formerly Envision2 Compact
Controls – UPC DDC Control (optional) cont.

BAS

N2 BACnet

LonWorks

Modbus Rnet

Aurora UPC Features
· Rugged enclosure made of GE C2950 Cycoloy plastic · Built-in surge transient protection circuitry · Operating range of -20° to 140°F; 10 to 95% relative hu-
midity, non-condensing · Onboard CR123A battery has a life of 10 years with 720
hours of cumulative power outage · Multi-Protocol field selectable communication port
that supports: · EIA-485 BACnet MS/TP @ 9600, 19.2k, 38.4k, 76.8k baud · Metasys N2 Open · LonWorks TP/FT-10 (Requires optional LON plug-in
communication card) · Status of all unit operating conditions and fault lockouts · Visual LED’s for status of power, network communication,
processor operation, and errors · Provides gateway into Aurora heat pump controls for
unsurpassed control flexibility · Network point for commanding unit into load shed · Network point for commanding unit into
emergency shutdown · Network points to assist in fan speed selection · Network points for freeze protection settings · Heating and cooling control from a rem

References

• WaterFurnace - Smarter From The Ground Up

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