KTM Two Way Evaporator

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Product Information

Specifications

• Product Name: KTM New Generation D Two-Way Evaporator
• Defrost Options: Air, Electric, or Hot Gas (Reverse Cycle)
• Electrical Power: 115/1/60, 208-230/1/60

Features & Options

• Nomenclature details provided for easy identification
• Standard features included with all models
• Various defrost options available for customization

Installation Instructions

1. Refer to the provided bulletin K30-KTMD-PDI-8 Part # 1109281
   for detailed installation guidelines

2. Ensure proper electrical connection based on the specified
   power requirements

3. Follow the wiring diagrams provided in the manual for models
   with EC Motors

4. Check dimensional data for accurate placement during
   installation

5. Follow the recommended installation clearances to ensure
   optimal performance

Usage Instructions

1. Select the appropriate defrost option based on your needs (Air,
   Electric, or Hot Gas)

2. Refer to the selection data table for medium temperature models
   to determine the capacity and airflow required

3. Ensure proper refrigerant charge as specified in the
   manual

4. Monitor the fan/heater control and defrost termination control
   position as needed

FAQ

Q: Where can I find product support resources?

A: Product support resources including service parts,
troubleshooting guides, warranty information, etc., can be accessed
on the website www.k-rp.com/ktm. You can also reach out via email
at evaps@k-rp.com or call 1-844-893-3222 x520 for assistance.

“`

PRODUCT DATA & INSTALLATION
Bulletin K30-KTMD-PDI-8 Part # 1109281
PRODUCT SUPPORT web: www.k-rp.com/ktm email: evaps@k-rp.com call: 1-844-893-3222 x520

scan:

KTM New Generation “D” Two-Way Evaporator
Air, Electric or Hot Gas (Reverse Cycle) Defrost
Electrical Power: 115/1/60, 208-230/1/60

STANDARD ON ALL MODELS

see page 11 for details

INCLUDES RATINGS FOR

CONTENTS

Page

Nomenclature …………………………………………………………………………………………………………… 2

Features & Options …………………………………………………………………………………………………….. 2

Selection Data…………………………………………………………………………………………………………… 3 – 4

Electrical Data…………………………………………………………………………………………………………… 5 – 6

Wiring Diagrams with standard

EC Motors …………………………………………………. 7 – 10

Wiring Diagrams – Models with

………………………………………………………………………….. 11 – 14

Annual Walk-In Energy Factor (AWEF) Ratings………………………………………………………………….. 15

Specifications …………………………………………………………………………………………………………… 15

Dimensional Data ………………………………………………………………………………………………………. 16 – 17

Installation Clearances ……………………………………………………………………………………………….. 18 – 19

TXV Selection……………………………………………………………………………………………………………. 20

Expansion Valve Selections – Models with

……………………………………………………………. 21

Fan/Heater Control and Defrost Termination Control Position……………………………………………… 22

Hot Gas Piping Schematics

23

Defrost Kit and Fuse Package Selections / Details ……………………………………………………………. 24 – 25

Installation Instructions

26 – 27

Project Information

30

Product Support Resources: Service Parts, Troubleshooting, Warranty, etc …………………………….. 31

“As Built” Service Parts List

BACK

26/06/23

NOMENCLATURE
Two-Way Evaporator Number of Fans Nominal Capacity: x 1000 @ 10°F TD, BTU/h
Application Range: M = Medium Temp 6 FPI (10°F to 45°F Evap Temp) L = Low Temp 6 FPI (-20°F to 0°F Evap Temp)

KTM – TWO-WAY EVAPORATORS

KTM 5 31 L E – S1 D

Design Generation

Voltage: S1 = 115/1/60
S2 = 208-230/1/60

S6 = 200-220/1/50

Defrost: A = Air E = Electric G = Reverse Cycle w/ Electric Heater Pan

STANDARD FEATURES

· EC motors with patented SmartSpeed® Technology · Compatible with Low GWP Refrigerants · Heavy gauge textured aluminum cabinet construction
resists scratches/corrosion and minimizes weight for shipment, installation and service. · Dual refrigeration coils with two-way air distribution reduces air velocities to minimize product dehydration. · Air enters through fan and discharges two ways out of each coil side.

· Low height compact size usable storage space. · Internally enhanced tube. · Attractive and durable high-density polyethylene fan guards. · Hinged drain pan provides convenient access for cleaning. · Terminal board allows for easy electrical connections. · Reduced operating charge with 3/8″ OD tubing

AVAILABLE OPTIONS
· ESP+ Intuitive Evaporator Control Technology. See page 11 (not available on models 207M, 209M, 313M, 204L, 206L, 309L)

· Factory mounted solenoid valve, TXV and thermostat on air and electric defrost models.
· Corrosion protection: alternate fin materials and coatings · Additional options available, please consult factory.

K30-KTMD-PDI-8

– 2 –

26/06/23

SELECTION DATA – MEDIUM TEMP. MODELS

R407A R407C R448A R449A
Medium Temperature – 6 FPI Models

Model KTM

Evaporator Temperature

Qty.

Selection Capacity BTU/h

Fans 20/25°F 15°F

10°F

(-4/-7°C) (-9°C) (-12°C)

Air Flow

CFM

L/S

Refrig. Charge R407A **

LB.

KG

207M 209M

2

6980

6910

6840

773

365

1.4

0.6

2

8430

8350

8260

672

317

2.3

1.0

313M

3 12800 12700 12500 1035

488

3.4

1.5

215M

2 15400 15200 15100 1900

897

3.1

1.4

318M

3 18300 18100 17900 3030 1430

3.4

1.5

321M

3 20700 20500 20300 2850 1345

4.6

2.1

426M 531M

4 26000 25700 25500 3780 1784 5 31300 31000 30700 4630 2185

5.7

2.6

5.7

2.6

– Capacities rated using 10°F (5.6°C) TD & 100°F (38°C) liquid temperature. Capacities at other TD within a range of 8 to 15 °F (4.4 to 8.3°C) are directly proportional to TD, or use formula: Capacity = Rated capacity ÷ 10 x TD. For capacities at TD outside of range 8 to 15 °F (4.4 to 8.3°C), or liquid temperature lower than 75°F (24°), consult factory. ** For R448A/R449A, use conversion factor 0.96

R404A R507 Medium Temperature – 6 FPI Models

Model KTM
207M 209M 313M 215M 318M 321M 426M 531M

Evaporator Temperature

Qty.

Selection Capacity BTU/h

Fans 20/25°F (-4/-7°C)

15°F (-9°C)

10°F (-12°C)

2

5680

5620

5570

2

6850

6780

6710

3 10400 10300 10200

2 12500 12400 12300

3 14800 14700 14500

3 16800 16600 16500

4 21100 20900 20700 5 25400 25100 24900

Air Flow

CFM

L/S

773

365

672

317

1035

488

1900

897

3030 1430

2850 1345

3780 1784

4630 2185

Refrig. Charge R404A R507

LB.

KG

1.3

0.6

2.1

1.0

3.1

1.4

2.9

1.3

3.1

1.4

4.2

1.9

5.2

2.4

5.2

2.4

– Capacities rated using 10°F (5.6°C) TD & 100°F (38°C) liquid temperature. Capacities at other TD within a range of 8 to 15 °F (4.4 to 8.3°C) are directly proportional to TD, or use formula: Capacity = Rated capacity ÷ 10 x TD. For capacities at TD outside of range 8 to 15 °F (4.4 to 8.3°C), or liquid temperature lower than 75°F (24°), consult factory.

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 3 –

26/06/23

SELECTION DATA – LOW TEMP. MODELS

R407A R448A R449A
Low Temperature – 6 FPI Models

Model KTM

Evaporator Temperature

Qty.

Selection Capacity BTU/h

Fans 0°F (-18°C)

-10°F (-23°C)

-20°F (-29°C)

Air Flow

CFM

L/S

Refrig. Charge R407A **

LB.

KG

204L 206L 309L 212L 315L 318L 422L 526L

2

4140

4030

3910

773

365

2

6040

5870

5700

672

317

3

9120

8860

8600 1035

488

2 12900 12600 12200 2020

953

3 16100 15700 15200 3030 1430

3 19200 18600 18100 2850 1345

4 23300 22700 22000 3700 1746

5 27500 26700 25900 4630 2185

1.4

0.6

2.3

1.0

3.4

1.5

3.1

1.4

4.6

2.1

4.6

2.1

5.7

2.6

5.7

2.6

-Capacities rated using 10°F (5.6°C) TD & 100°F (38°C) liquid temperature. Capacities at other TD within a range of 8 to 15 °F (4.4 to 8.3°C) are directly proportional to TD, or use formula: Capacity = Rated capacity ÷ 10 x TD. For capacities at TD outside of range 8 to 15 °F (4.4 to 8.3°C), or liquid temperature lower than 75°F (24°), consult factory. ** For R448A/R449A, use conversion factor 0.96

R404A R507 Low Temperature – 6 FPI Models

Model KTM
204L 206L 309L 212L 315L 318L 422L 526L

Evaporator Temperature

Qty.

Selection Capacity BTU/h

Fans 0°F

-10°F

-20°F

(-18°C) (-23°C) (-29°C)

2

3370

3280

3180

2

4920

4780

4640

3

7410

7200

6990

2 10500 10200

9920

3 13100 12800 12400

3 15600 15100 14700

4 19000 18400 17900

5 22400 21700 21100

Air Flow

CFM

L/S

773

365

672

317

1035

488

2020

953

3030 1430

2850 1345

3700 1746

4630 2185

Refrig. Charge R404A R507

LB.

KG

1.3

0.6

2.1

1.0

3.1

1.4

2.9

1.3

4.2

1.9

4.2

1.9

5.2

2.4

5.2

2.4

-Capacities rated using 10°F (5.6°C) TD & 100°F (38°C) liquid temperature. Capacities at other TD within a range of 8 to 15 °F (4.4 to 8.3°C) are directly proportional to TD, or use formula: Capacity = Rated capacity ÷ 10 x TD. For capacities at TD outside of range 8 to 15 °F (4.4 to 8.3°C), or liquid temperature lower than 75°F (24°), consult factory.

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 4 –

26/06/23

ELECTRICAL DATA

115/1/60: Air Defrost

FAN MOTORS

Model

Standard

EC Motors

KTM

Qty.

FLA Total

MCA (A)

Watts

Max. Fuse (AMPS)

207MA-S1D

2

209MA-S1D

2

313MA-S1D

3

215MA-S1D

2

318MA-S1D

3

321MA-S1D

3

426MA-S1D

4

531MA-S1D

5

1.2

1.4

1.2

1.4

1.8

2.0

3.0

3.4

4.5

4.9

4.5

4.9

6.0

6.4

7.5

7.9

60 15 60 15 90 15 104 15 156 15 156 15 208 15 260 15

KTM – TWO-WAY EVAPORATORS

208-230/1/60: Air Defrost

FAN MOTORS

Model

Standard

EC Motors

KTM

Qty.

FLA Total

MCA (A)

Watts

Max. Fuse (AMPS)

207MA-S2D

2

0.6

0.7

60

15

209MA-S2D

2

0.6

0.7

60

15

313MA-S2D

3

0.9

1.0

90

15

215MA-S2D

2

2.0

2.3

104

15

318MA-S2D

3

3.0

3.3

156

15

321MA-S2D

3

3.0

3.3

156

15

426MA-S2D

4

4.0

4.3

208

15

531MA-S2D

5

5.0

5.3

260

15

115/1/60: Electric Defrost

Model KTM

FAN MOTORS

DRAIN PAN HEATERS

Qty.

Standard

FLA MCA

Total

(A)

EC Motors

Total

Watts

Max. Fuse WATTS (AMPS)

Total AMPS

MCA (A)

Max. Fuse (AMPS)

207ME-S1D

2

1.2

1.4

60

15

1100

9.6 12.0

15

209ME-S1D

2

1.2

1.4

60

15

1540 13.4 16.8

20

313ME-S1D

3

1.8

2.0

90

15

2270 19.7 24.6

25

204LE-S1D

2

1.2

1.4

60

15

1100

9.6 12.0

15

206LE-S1D

2

1.2

1.4

60

15

1540 13.4 16.8

20

309LE-S1D

3

1.8

2.0

90

15

2270 19.7 24.6

25

208-230/1/60: Electric Defrost
FAN MOTORS

DEFROST HEATERS

Model KTM

Qty.

Standard

FLA MCA

Total

(A)

EC Motors

Total

Watts

Max. Fuse WATTS (AMPS)

Total AMPS

MCA (A)

Max. Fuse (AMPS)

207ME-S2D

2

0.6

0.7

60

15

1100

4.8

6.0

15

209ME-S2D

2

0.6

0.7

60

15

1540

6.7

8.4

15

313ME-S2D

3

0.9

1.0

90

15

2270

9.9 12.4

15

215ME-S2D

2

2.0

2.3

104

15

2600 11.3 14.1

15

318ME-S2D

3

3.0

3.3

156

15

3720 16.2 20.3

25

321ME-S2D

3

3.0

3.3

156

15

3720 16.2 20.3

25

426ME-S2D

4

4.0

4.3

208

15

3720 16.2 20.3

25

531ME-S2D

5

5.0

5.3

260

15

4560 19.8 24.8

25

204LE-S2D

2

0.6

0.7

60

15

1100

4.8

6.0

15

206LE-S2D

2

0.6

0.7

60

15

1540

6.7

8.4

15

309LE-S2D

3

0.9

1.0

90

15

2270

9.9 12.4

15

212LE-S2D

2

2.0

2.3

104

15

2600 11.3 14.1

15

315LE-S2D

3

3.0

3.3

156

15

3720 16.2 20.3

25

318LE-S2D

3

3.0

3.3

156

15

3720 16.2 20.3

25

422LE-S2D

4

4.0

4.3

208

15

3720 16.2 20.3

25

526LE-S2D

5

5.0

5.3

260

15

4560 19.8 24.8

25

K30-KTMD-PDI-8

– 5 –

26/06/23

ELECTRICAL DATA

KTM – TWO-WAY EVAPORATORS

115/1/60: Hot Gas Defrost

Model KTM

FAN MOTORS

DRAIN PAN HEATERS

Qty.

Standard

FLA MCA

Total

(A)

EC Motors

Watts

Max. Fuse (AMPS)

Total WATTS

Total AMPS

MCA (A)

Max. Fuse (AMPS)

215MG-S1D

2

318MG-S1D

3

321MG-S1D

3

426MG-S1D

4

531MG-S1D

5

3

3.375 104

15

1300 11.3 14.1

15

4.5 4.875 156

15

1860 16.2 20.3

25

4.5 4.875 156

15

1860 16.2 20.3

25

6

6.375 208

15

1860 16.2 20.3

25

7.5 7.875 260

15

2280 19.8 24.8

25

208-230/1/60: Hot Gas Defrost
FAN MOTORS

DEFROST HEATERS

Model KTM

Qty.

Standard

FLA MCA

Total

(A)

EC Motors

Watts

Max. Fuse (AMPS)

Total WATTS

Total AMPS

MCA (A)

Max. Fuse (AMPS)

215MG-S2D

2

318MG-S2D

3

321MG-S2D

3

426MG-S2D

4

531MG-S2D

5

2

2.25

104

15

1300

5.7

7.1

15

3

3.25

156

15

1860

8.1 10.1

15

3

3.25

156

15

1860

8.1 10.1

15

4

4.25

208

15

1860

8.1 10.1

15

5

5.25

260

15

2280

9.9 12.4

15

K30-KTMD-PDI-8

– 6 –

26/06/23

WIRING DIAGRAMS 115/1/60, 208-230/1/60: Air Defrost Models

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 7 –

26/06/23

WIRING DIAGRAMS 208-230/1/60: Electric Defrost Models – Single Evaporator

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 8 –

26/06/23

WIRING DIAGRAMS

KTM – TWO-WAY EVAPORATORS

208-230/1/60: Electric Defrost Models – Multiple Evaporators

K30-KTMD-PDI-8

– 9 –

26/06/23

WIRING DIAGRAMS 208-230/1/60: Hot Gas Defrost Models

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 10 –

26/06/23

AVAILABLE OPTIONS

KTM – TWO-WAY EVAPORATORS

INTUITIVE EVAPORATOR CONTROL TECHNOLOGY
(not available on models 207M, 209M, 313M, 204L, 206L, 309L)
What is ESP+? KeepRite Refrigeration’s ESP+ intuitive evaporator control technology is designed to replace traditional electro-mechanical refrigeration controls typically used on medium and low temperature applications. By combining award winning adaptive technology along with an electronic expansion valve, KeepRite Refrigeration continues to be “The Right Choice For The Refrigeration Professional”.

Installing an evaporator utilizing the ESP+ intuitive evaporator control technology is simple. Two pipes, two wires and you’re done. No interconnecting control wiring between the evaporator and the condensing unit is required.

· Quick simple installation · Improved evaporator performance by minimizing excessive frost on the evaporator · Eliminates ice build up on surfaces and product · Energy savings through evaporator fan management · Energy savings with reduction in the number of defrost cycles · Defrost heater management · Improved system diagnostics and service through advanced alarm notification text/email · Remote monitoring & system control · User friendly interface · Precise temperature control for prolonged product shelf life · Improved product integrity with less potential for spoilage · Downloadable data provides system history for prior 30 days · Remotely view and change system parameters and alarm settings · Manually control system · Easily troubleshoot issues

ESP+ controls:

· Box Temperature

· Defrost Termination

· Superheat

· Fan Motors

· Liquid Line Solenoid · Defrost Heater (Electric Defrost Models)

· Defrost Initiation

Plus – User can access operating data directly from the system interface

15-20% System Energy Savings over a Properly Commissioned System!

86% Fewer Defrost Cycles* · Enhanced system performance · Energy Savings · Improved product integrity

• Data may vary depending on application

K30-KTMD-PDI-8

Visit www.k-rp.com/esp for details
– 11 –

26/06/23

WIRING DIAGRAMS 115/1/60: Air Defrost Models with

KTM – TWO-WAY EVAPORATORS

K30-KTMD-PDI-8

– 12 –

26/06/23

WIRING DIAGRAMS 208-230/1/60: Electric Defrost Models with

KTM – TWO-WAY EVAPORATORS Max.12A Heater

K30-KTMD-PDI-8

– 13 –

26/06/23

WIRING DIAGRAMS 208-230/1/60: Electric Defrost Models with

KTM – TWO-WAY EVAPORATORS Max.20A Heater

K30-KTMD-PDI-8

– 14 –

26/06/23

AWEF RATINGS

KTM – TWO-WAY EVAPORATORS

Annual Walk-In Energy Factor Ratings – Medium Temperature
If a numerical value is listed in the table below, the following statement applies to that corresponding model: ” This refrigeration system is designed and certified for use in walk-in cooler applications.”

Model KTM
207M 209M 313M 215M 318M 321M 426M 531M

R404A R507
9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00

R407A R407C
9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00

R448A R449A
9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00

Annual Walk-In Energy Factor Ratings – Low Temperature
If a numerical value is listed in the table below, the following statement applies to that corresponding model: ” This refrigeration system is designed and certified for use in walk-in freezer applications.”

Model KTM
204L 206L 309L 212L 315L 318L 422L 526L

R404A R507
3.95 3.98 4.01 4.05 4.09 4.12 4.15 4.15

R407A
3.95 3.98 4.01 4.05 4.09 4.12 4.15 4.15

R448A R449A
3.95 3.98 4.01 4.05 4.09 4.12 4.15 4.15

SPECIFICATIONS

MODEL NO. OF KTM FANS

207M

2

209M

2

313M

3

215M

2

318M

3

321M

3

426M

4

531M

5

204L

2

206L

2

309L

3

212L

2

315L

3

318L

3

422L

4

526L

5

SUCTION (OD)

Inches

mm

1/2

13

5/8

16

5/8

16

7/8

22

7/8

22

1 1/8

29

1 1/8

29

1 1/8

29

5/8

16

5/8

16

7/8

22

7/8

22

1 1/8

29

1 1/8

29

1 1/8

29

1 3/8

35

TUBE CONNECTIONS

DISTRIBUTOR INLET

Inches

mm

1/2

13

1/2

13

1/2

13

1/2

13

1/2

13

1/2

13

1/2

13

7/8

22

1/2

13

1/2

13

1/2

13

1/2

13

1/2

13

7/8

22

7/8

22

7/8

22

HOT GAS SIDE

Inches

mm

–

–

–

–

–

–

1/2

13

1/2

13

1/2

13

1/2

13

5/8

16

–

–

–

–

–

–

1/2

13

1/2

13

5/8

16

5/8

16

5/8

16

SHIPPING WEIGHT

lbs.

kg

38

17

40

18

60

27

116

53

150

68

157

71

164

74

198

90

38

17

40

18

60

27

110

50

150

68

157

71

164

74

198

90

K30-KTMD-PDI-8

– 15 –

26/06/23

DIMENSIONAL DATA
PIPING CONNECTION END VIEW
AIR OUT
AIR IN
23-3/4 (603)
9/16 (14 mm) dia knockouts 2 each side 7/8 (22 mm) dia knockouts 2 each side

AIR OUT
SIDE VIEW

AIR
5/16 (9 mm) Mounting holes.

AIR C
BOTTOM VIEW

KTM – TWO-WAY EVAPORATORS
NOTES: 1). Electric defrost views shown. Air defrost models have identical dimensioning.
2). Electrical connection end is opposite the piping end on multiple fan models.

7-5/8 (194)

7/8 (22 mm) dia knockouts 1 each side
1-1/8 (28 mm) dia knockouts 1 each side
1″ FPT. Aluminum drain fitting.
TXV Connection 1/2″(13) ODS.

Electrical compartment

22-1/4 (565)

23-5/8 (600)

3 E

3

D

F

MODEL KTM

FANS

C

in

mm

D

in

mm

207M*

2

42.75

1085.85

4 holes @ 8″

203

209M*

2

42.75

1085.85

4 holes @ 8″

203

313M*

3

59.50

1511.30

6 holes @ 8″

203

204L*

2

42.75

1085.85

4 holes @ 8″

203

206L*

2

42.75

1085.85

4 holes @ 8″

203

309L*

3

59.50

1511.30

6 holes @ 8″

203

• Reducer supplied to accommodate 1/2″ or 7/8″ TXV outlet connection

E

in

mm

7.69

195.26

7.69

195.26

8.00

203.20

7.69

195.26

7.69

195.26

8.00

203.20

in 10.94 10.94 11.44 10.94 10.94 11.44

F mm
277.81 277.81 290.51 277.81 277.81 290.51

K30-KTMD-PDI-8

– 16 –

26/06/23

DIMENSIONAL DATA
NOTES: 1). Dimensions shown are typical for Air defrost, Electric, and Hot Gas defrost
2). Electrical connection end is opposite to the piping end on all models.
3). 1/4″ O.D. external equalizer line and service access fitting included on all suction headers inside end compartment

KTM – TWO-WAY EVAPORATORS
END VIEW
28 3/16 26 15/16 MOUNTING HOLES

L.H.

AIR

Coil

AIR

OUT

AIR IN

R.H. AIR Coil

AIR OUT

“B” MAX

1 13/16
Hinged Drain pan/Fan panel

6-1/4

26 1/2

SIDE VIEW

MOUNTING HOLES (3/8″ DIA.) & PIPING CONNECTION
Unit cooler is to be supported at all mounting points

“C”

“C”

“D”

“E”

“D”

3-3/8

7/8 (22 mm) hole & knockout
Suction line
Drain fitting. 3/4″ FPT

MODEL KTM
215M 318M 321M 426M 531M 212L 315L 318L 422L 526L

FANS

2
3
4 5 2
3
4 5

A

in

mm

67.50

1715

93.50

2375

93.50

2375

93.50

2375

113.50

2883

67.50

1715

93.50

2375

93.50

2375

93.50

2375

113.50

2883

AIR

B

in

mm

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

8.69

221

7/8 (22 mm)
knockouts 3 each side except ESP+

“A”

C

in

mm

27.50

699

40.50

1029

40.50

1029

40.50

1029

–

–

27.50

699

40.50

1029

40.50

1029

40.50

1029

–

–

AIR

D

in

mm

–

–

–

–

–

–

–

–

40.50

1029

–

–

–

–

–

–

–

–

40.50

1029

E

in

mm

–

–

–

–

–

–

–

–

20.00

508

–

–

–

–

–

–

–

–

20.00

508

K30-KTMD-PDI-8

– 17 –

26/06/23

RECOMMENDED INSTALLATION CLEARANCES Models 207M, 209M, 313M, 204L, 206L, 309L
D A
C

KTM – TWO-WAY EVAPORATORS
A

TOP VIEW

TOP VIEW

SIDE VIEW
WALL

SIDE VIEW
WALL

D CEILING

A

B

Models 207M, 209M, 313M, 204L, 206L, 309L

DIMENSION

A

B

C

D

ft.

2

2

4

2

MINIMUM

cm.

61

61

122

61

ft.

–

Maximum

cm.

–

7

30

20

210

900

457

K30-KTMD-PDI-8

– 18 –

26/06/23

RECOMMENDED INSTALLATION CLEARANCES

KTM – TWO-WAY EVAPORATORS

All Other Models (excludes Models 207M, 209M, 313M, 204L, 206L, 309L)

D

A

A

C

TOP VIEW

TOP VIEW

SIDE VIEW
WALL

SIDE VIEW
WALL

D CEILING

A

B

All Other Models (excludes Models 207M, 209M, 313M, 204L, 206L, 309L)

DIMENSION

A

B

C

D

ft.

2

2

6

3

MINIMUM

cm.

61

61

183

92

ft.

–

Maximum

cm.

–

7

40

20

210

1200

600

K30-KTMD-PDI-8

– 19 –

26/06/23

RECOMMENDED EXPANSION VALVE SELECTIONS

KTM – TWO-WAY EVAPORATORS

Medium Temperature
R407A R407C R448A R449A
Air Or Electric Defrost

Model KTM

FACTORY INSTALLED
NOZZLE

EXPANSION VALVE

207M 209M

L-1/2 L-3/4

SBQVE-A-C SBQVE-A-C

313M 215M 318M 321M

L-1 L1-1/2 L1-1/2
L2

SBQVE-A-C SBQVE-B-C SBQVE-B-C SBQVE-B-C

426M 531M

G2-1/2 G3

SBQVE-C-C SBQVE-C-C

*** Insert defrost type. See nomenclature for details

Medium Temperature
R404A R507
Air Or Electric Defrost

MODEL KTM

FACTORY INSTALLED
NOZZLE

EXPANSION VALVE

207M 209M 313M 215M 318M 321M 426M 531M

L-1/2 L-3/4 L-1 L1-1/2 L1-1/2
L2 G2-1/2
G3

SBQSE-A-C SBQSE-A-C SBQSE-B-C SBQSE-B-C SBQSE-B-C SBQSE-C-C SBQSE-C-C SBQSE-C-C

*** Insert defrost type. See nomenclature for details

Low Temperature

R448A R449A R407A
Electric Defrost

MODEL KTM
204L 206L 309L 212L 315L 318L 422L 526L

FACTORY INSTALLED
NOZZLE
L-1 L-1 L-1 1/2 L2 J2-1/2 G2-1/2 G3 E4

0°F Evap
SBQVE-AA-C SBQVE-AA-C SBQVE-A-C SBQVE-A-C SBQVE-B-ZP SBQVE-C-ZP SBQVE-C-ZP SBQVE-C-ZP

Low Temperature
R404A R507
Electric Defrost

MODEL KTM
204L 206L 309L 212L 315L 318L 422L 526L

FACTORY INSTALLED
NOZZLE
L-1 L-1 L-1 1/2 L2 J2-1/2 G2-1/2 G3 E4

0°F Evap
SBQSE-AA-C SBQSE-AA-C SBQSE-A-C SBQSE-A-C SBQSE-B-ZP SBQSE-C-ZP SBQSE-C-ZP SBQSE-C-ZP

EXPANSION VALVE
-10°F Evap
SBQVE-AA-ZP SBQVE-AA-ZP SBQVE-A-ZP SBQVE-B-ZP SBQVE-B-ZP SBQVE-C-ZP SBQVE-C-ZP SBQVE-C-ZP

-20°F Evap
SBQVE-AA-ZP SBQVE-A-ZP SBQVE-A-ZP SBQVE-B-ZP SBQVE-B-ZP SBQVE-C-ZP SBQVE-C-ZP SBQVE-C-ZP

EXPANSION VALVE
-10°F Evap
SBQSE-AA-ZP SBQSE-A-ZP SBQSE-A-ZP SBQSE-B-ZP SBQSE-B-ZP SBQSE-C-ZP SBQSE-C-ZP SBQSE-C-ZP

-20°F Evap
SBQSE-AA-ZP SBQSE-A-ZP SBQSE-A-ZP SBQSE-B-ZP SBQSE-B-ZP SBQSE-C-ZP SBQSE-C-ZP SBQSE-C-ZP

K30-KTMD-PDI-8

– 20 –

26/06/23

FACTORY INSTALLED EXPANSION VALVE SELECTIONS KTM – TWO-WAY EVAPORATORS

Models with

Medium Temperature

R407A R407C R448A R449A
Air Or Electric Defrost

Model
KTM
215M 318M 321M 426M 531M***

FACTORY INSTALLED
NOZZLE
L1-1/2 L1-1/2
L2 G2-1/2
G3

EXPANSION VALVE
E2V18 E2V18 E2V18 E2V24 E2V24

FACTORY INSTALLED LIQUID LINE SOLENOID VALVE
5
5 5 5 6

*** Insert defrost type. See nomenclature for details

Medium Temperature
R404A R507
Air Or Electric Defrost

MODEL KTM

FACTORY INSTALLED
NOZZLE

EXPANSION VALVE

215M 318M 321M 426M 531M***

L1-1/2 L1-1/2
L2 G2-1/2
G3

E2V18 E2V18 E2V18 E2V24 E2V24

*** Insert defrost type. See nomenclature for details

FACTORY INSTALLED LIQUID LINE SOLENOID VALVE
5
5 6 6 6

Low Temperature
R448A R449A R407A
Electric Defrost

Model
KTM
212L 315L 318L 422L 526L

FACTORY INSTALLED
NOZZLE
L2 J2-1/2 G2-1/2
G3 E4

EXPANSION VALVE
E2V11 E2V14 E2V14 E2V18 E2V18

FACTORY INSTALLED LIQUID LINE SOLENOID VALVE
3 5 5 5 6

Low Temperature
R404A R507
Electric Defrost

MODEL KTM

FACTORY INSTALLED
NOZZLE

212L 315L 318L 422L 526L

L2 J2-1/2 G2-1/2
G3 E4

EXPANSION VALVE
E2V11 E2V14 E2V14 E2V14 E2V18

FACTORY INSTALLED LIQUID LINE SOLENOID VALVE
3 3 5 5 6

Visit
www.k-rp.com/esp
for Quick Start Guide, Operation Manual, etc

K30-KTMD-PDI-8

– 21 –

26/06/23

FAN/HEATER CONTROL AND DEFROST TERMINATION CONTROL POSITION

KTM – TWO-WAY EVAPORATORS

HOT GAS (REVERSE CYCLE) PIPING SCHEMATICS

REVERSE CYCLE DEFROST
EVAPORATOR COIL

WITH DRAIN PAN HEATER WITH CHECK VALVE LOOSE
STD-G DISTRIBUTOR

REVERSE CYCLE DEFROST
EVAPORATOR COIL

WITH DRAIN PAN HEATER WITH TXV FACTORY INSTALLED CHECK VALVE SHIPPED LOOSE
TXV DISTRIBUTOR

ELECTRIC DRAIN PAN HEATER

LEAVING HOT GAS
ENTERING HOT GAS

CHECK VALVE

FACTORY PIPING

ELECTRIC DRAIN PAN HEATER

ENTERING HOT GAS

LEAVING HOT GAS

CHECK VALVE

OPT1

G
FACTORY PIPING

K30-KTMD-PDI-8

– 22 –

26/06/23

DEFROST KIT & FUSE PACKAGE SELECTIONS

KTM – TWO-WAY EVAPORATORS

Medium Temperature

1 X EVAPORATOR

TEMP FPI # of Fans

MEDIUM

Model

KTM

207ME-S1D

207ME-S2D

2 209ME-S1D

209ME-S2D

215ME-S2D

6

313ME-S1D 313ME-S2D

3 318ME-S2D

321ME-S2D

4 426ME-S2D

5 531ME-S2D

Defrost Voltage Kit
115/1/60 DFK-01 208-230/1/60 DFK-02
115/1/60 DFK-01 208-230/1/60 DFK-02 208-230/1/60 DFK-02
115/1/60 DFK-01 208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02

Fuse Package
FP-001 FP-004 FP-002 FP-004 FP-004 FP-003 FP-004
FP-007
FP-007
FP-007
FP-007

2 X EVAPORATOR

Defrost Kit
DFK-05 DFK-06 DFK-05 DFK-06 DFK-06 DFK-05 DFK-06
DFK-06
DFK-06
DFK-06 DFK-06

Fuse Package
FP-004 FP-008 FP-006 FP-008 FP-008 FP-007 FP-008
FP-010
FP-010
FP-010 FP-010

Low Temperature

of Fans

FPI

TEMP

Model

KTM

204LE-S1D

204LE-S2D

2 206LE-S1D

206LE-S2D

212LE-S2D

6

309LE-S1D 309LE-S2D

3 315LE-S2D

318LE-S2D

4 422LE-S2D

5 526LE-S2D

LOW

1 X EVAPORATOR

Defrost Voltage Kit
115/1/60 DFK-01 208-230/1/60 DFK-02
115/1/60 DFK-01 208-230/1/60 DFK-02 208-230/1/60 DFK-02
115/1/60 DFK-01 208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02
208-230/1/60 DFK-02

Fuse Package
FP-001 FP-004 FP-002 FP-004 FP-004 FP-003 FP-004
FP-007
FP-007
FP-007
FP-007

2 X EVAPORATOR

Defrost Kit
DFK-05 DFK-06 DFK-05 DFK-06 DFK-06 DFK-05 DFK-06
DFK-06
DFK-06
DFK-06 DFK-06

Fuse Package
FP-004 FP-008 FP-006 FP-008 FP-008 FP-007 FP-008
FP-010
FP-010
FP-010 FP-010

For info on matched KeepRite condensing units,
visit www.k-rp.com/cu

Defrost Kit & Fuse Package Online Selection Tool:
www.k-rp.com/dfk

K30-KTMD-PDI-8

– 23 –

26/06/23

DEFROST KIT & FUSE PACKAGE SELECTIONS

KTM – TWO-WAY EVAPORATORS

Defrost Kits

Number of Evaps.
1 1 1 1 2 2 2 2 2 1 1 2 2 1 1 1 1 2 2 2 1 1 2 2 1 1 2 2 2 2 1 2 2 2 2 2 2 2 1

Kit Part Number
DFK-01 DFK-02 DFK-03 DFK-04 DFK-05 DFK-06 DFK-07 DFK-08 DFK-09 DFK-10 DFK-11 DFK-12 DFK-13 DFK-14 DFK-15 DFK-16 DFK-17 DFK-18 DFK-19 DFK-20 DFK-21 DFK-22 DFK-23 DFK-24 DFK-25 DFK-26 DFK-27 DFK-28 DFK-29 DFK-30 DFK-31 DFK-32 DFK-33 DFK-34 DFK-35 DFK-36 DFK-37 DFK-38 DFK-39

Description
Time Clock, HtrCont – 1x 40A (3P), FB 1x 30A (1P) Time Clock, HtrCont – 1x 40A (3P), FB 1x 30A (2P) Time Clock, HtrCont – 1x 40A (3P), FB 1x 30A (3P) Time Clock, HtrCont – 1x 40A (3P), FB 1x 60A (2P) Time Clock, HtrCont – 1x 40A (3P), FB 2x 30A (1P) Time Clock, HtrCont – 1x 40A (3P), FB 2x 30A (2P) Time Clock, HtrCont – 1x 40A (3P), FB 2x 30A (3P) Time Clock, HtrCont – 1x 50A (3P), FB 2x 60A (2P) Time Clock, HtrCont – 1x 50A (3P), FB 2x 30A (2P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (3P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 4x 30A (2P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 4x 30A (3P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (2P), FB 1x 30A (3P) Time Clock, HtrCont – 1x40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (2P), FB 1x 60A (2P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (2P), FB 1x 60A (3P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (3P), FB 1x 60A (3P) Time Clock, HtrCont – 1x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 2x 30A (3P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 4x 30A (2P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 4x 30A (3P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 1x 30A (2P), FB 1x 60A (2P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 1x 30A (3P), FB 1x 60A (3P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 2x 30A (3P) Time Clock, HtrCont – 1x 50A (3P), FanCont – 1x 40A (3P), FB 2x 30A (3P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (2P), FB 2x 60A (2P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 40A (3P), FB 1x 30A (3P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 2x 60A (2P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (3P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 40A (3P), FanCont – 1x 50A (3P), FB 2x 30A (2P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 50A (3P), FanCont – 1x 40A (3P), FB 1x 30A (3P), FB 2x 60A (3P) Time Clock, HtrCont – 2x 50A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 2x 60A (2P) Time Clock, HtrCont – 2x 50A (3P), FanCont – 1x 40A (3P), FB 2x 30A (3P), FB 2x 60A (3P) Time Clock, HtrCont – 4x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (2P), FB 4x 60A (2P) Time Clock, HtrCont – 4x 40A (3P), FanCont – 1x 40A (3P), FB 2x 30A (3P), FB 4x 60A (3P) Time Clock, HtrCont – 4x 40A (3P), FanCont – 1x 50A (3P), FB 2x 30A (2P), FB 4x 60A (2P) Time Clock, HtrCont – 4x 40A (3P), FanCont – 1x 50A (3P), FB 2x 30A (3P), FB 4x 60A (3P) Time Clock, HtrCont – 4x 50A (3P), FanCont – 1x 50A (3P), FB 2x 30A (3P), FB 4x 60A (3P) Time Clock, HtrCont1 – 1x 40A (3P), HtrCont2 – 2x 50A (3P), FanCont – 1x 40A (3P), FB 4x 60A (3P)

NOTE: HtrCont = Heater Contactor, FanCont = Fan Contactor, FB = Fuse Block, (1P), (2P), (3P) = Number of Poles

K30-KTMD-PDI-8

– 24 –

26/06/23

DEFROST KIT & FUSE PACKAGE SELECTIONS

KTM – TWO-WAY EVAPORATORS

Fuse Packages

Package Part Number
FP-001 FP-002 FP-003 FP-004 FP-006 FP-007 FP-008 FP-010 FP-012 FP-013 FP-014 FP-015 FP-016 FP-017 FP-018 FP-019 FP-020 FP-021 FP-022 FP-023 FP-024 FP-025 FP-026 FP-027 FP-028 FP-029 FP-030 FP-031 FP-032 FP-033 FP-034 FP-035 FP-036 FP-037 FP-038 FP-039 FP-040 FP-041 FP-042 FP-043 FP-044 FP-045 FP-046 FP-047 FP-048 FP-049 FP-050 FP-051 FP-052 FP-053

Description
FUSES (1) 15AMP FUSES (1) 20AMP FUSES (1) 25AMP FUSES (2) 15AMP FUSES (2) 20AMP FUSES (2) 25AMP FUSES (4) 15AMP FUSES (4) 25AMP FUSES (2) 35AMP FUSES (3) 15AMP FUSES (3) 20AMP FUSES (4) 20AMP FUSES (4) 20AMP (6) 45AMP FUSES (4) 35AMP FUSES (6) 15AMP FUSES (6) 20AMP FUSES (2) 30AMP FUSES (4) 30AMP FUSES (8) 15AMP FUSES (2) 25AMP (3) 50AMP FUSES (2) 20AMP (3) 45AMP FUSES (6) 20AMP (6) 60AMP FUSES (6) 15AMP (12) 40AMP FUSES (6) 15AMP (6) 40AMP FUSES (6) 20AMP (12) 40AMP FUSES (6)15AMP (6) 50AMP FUSES (6) 15AMP (6) 45AMP FUSES (6) 15AMP (6) 35AMP FUSES (6) 15AMP (6) 30AMP FUSES (6) 25AMP (12) 50AMP FUSES (6) 20AMP (12) 35AMP FUSES (4) 25AMP (6) 50AMP FUSES (6) 25AMP (12) 60AMP FUSES (6) 20AMP (12) 60AMP FUSES (6) 20AMP (12) 50AMP FUSES (6) 20AMP (12) 45AMP FUSES (6) 15AMP (12) 45AMP FUSES (5) 15AMP FUSES (10) 15AMP FUSES (3) 25AMP (6) 60AMP FUSES (3) 20AMP (6) 60AMP FUSES (3) 20AMP (6) 50AMP FUSES (3) 25AMP (6) 45AMP FUSES (3) 15AMP (6) 45AMP FUSES (4) 15AMP (4) 45AMP FUSES (4) 15AMP (4) 40AMP FUSES (3) 15AMP (3) 60AMP FUSES (4) 20AMP (6) 50AMP FUSES (4) 15AMP (6) 45AMP FUSES (4) 15AMP (6) 30AMP

Package Part Number
FP-054 FP-055 FP-056 FP-057 FP-058 FP-059 FP-060 FP-061 FP-062 FP-063 FP-064 FP-065 FP-066 FP-067 FP-068 FP-069 FP-070 FP-071 FP-072 FP-073 FP-074 FP-075 FP-076 FP-077 FP-078 FP-079 FP-080 FP-081 FP-082 FP-083 FP-084 FP-085 FP-086 FP-087 FP-088 FP-089 FP-090 FP-091 FP-092 FP-093 FP-094 FP-095 FP-096 FP-097 FP-098 FP-099 FP-100 FP-101 FP-102 FP-103

Description
FUSES (3)15AMP (6) 35AMP FUSES (2) 15AMP (2) 45AMP FUSES (2) 15AMP (2) 40AMP FUSES (2) 20AMP (3) 50AMP FUSES (2) 15AMP (3) 45AMP FUSES (2) 15AMP (3) 30AMP FUSES (2) 15AMP (2) 35AMP FUSES (2) 15AMP (2) 50AMP FUSES (2) 15AMP (2) 60AMP FUSES (2) 15AMP (3) 25AMP FUSES (2) 15AMP (3) 35AMP FUSES (2) 15AMP (3) 40AMP FUSES (2) 15AMP (3) 20AMP FUSES (4) 15AMP (4) 35AMP FUSES (4) 15AMP (4) 50AMP FUSES (4) 15AMP (4) 60AMP FUSES (4) 15AMP (6) 25AMP FUSES (4) 15AMP (6) 35AMP FUSES (4) 15AMP (6) 40AMP FUSES (4) 15AMP (6) 20AMP FUSES (3) 20AMP (3) 60AMP FUSES (3) 20AMP (6) 35AMP FUSES (3) 25AMP (6) 50AMP FUSES (3) 35AMP (9) 45AMP FUSES (3) 15AMP (3) 35AMP FUSES (3)15AMP (3) 45AMP FUSES (3) 15AMP (3) 50AMP FUSES (3) 20AMP (6) 40AMP FUSES (3) 15AMP (3) 40AMP FUSES (3) 15AMP (6) 40AMP FUSES (6) 15AMP (6) 60AMP FUSES (6) 15AMP (12) 35AMP FUSES (3) 35AMP (3) 45AMP (6) 60AMP FUSES (4) 20AMP (4) 40AMP (4) 50AMP FUSES (4) 15AMP (4) 35AMP (4) 40AMP FUSES (2) 20AMP (2) 40AMP (2) 50AMP FUSES (2) 15AMP (2) 35AMP (2) 40AMP FUSES (2) 20AMP (2) 35AMP (2) 40AMP FUSES (2) 25AMP (2) 40AMP (2) 50AMP FUSES (4) 20AMP (4) 35AMP (4) 40AMP FUSES (6) 15AMP (6) 25AMP FUSES (3) 15AMP (3) 25AMP FUSES (3) 15AMP (3) 30AMP FUSES (4) 15AMP (4) 30AMP FUSES (4) 15AMP (4) 25AMP FUSES (4) 15AMP (4) 20AMP FUSES (2) 15AMP (2) 20AMP FUSES (2) 15AMP (2) 25AMP FUSES (2) 15AMP (2) 30AMP FUSES (4) 25AMP (4) 40AMP (4) 50AMP

NOTE: FUSES 30AMP and Below – Class CC Type, FUSES 35AMP and Above – Class J Type

K30-KTMD-PDI-8

– 25 –

26/06/23

INSTALLATION INSTRUCTIONS

KTM – TWO-WAY EVAPORATORS

INSTALLATION The installation and start-up of Two-Way Evaporators should only be performed by qualified refrigeration mechanics. This equipment should be installed in accordance with all applicable codes, ordinances and local by- laws.
INSPECTION Inspect all equipment before unpacking for visible signs of damage or loss. Check shipping list against material received to ensure shipment is complete.
IMPORTANT: Remember, you, the consignee, must make any claim necessary against the transportation company. Shipping damage or missing parts, when discovered at the outset, will prevent later unnecessary and costly delays. If damage or loss during transport is evident, make claim to carrier, as this will be their responsibility, not the manufacturer’s. Should carton be damaged, but damage to equipment is not obvious, a claim should be filed for “concealed damage” with the carrier.
IMPORTANT: The electrical characteristics of the unit should be checked at this time to make sure they correspond to those ordered and to electrical power available at the job site.
Save all shipping papers, tags and instruction sheets for reference by installer and owner.
APPLICATION Two-Way Evaporators are designed for use in coolers and freezers such as reach in boxes, walk-in rooms and any other cooler applications where a low velocity, uniform air flow is required. The compact and low height unit provides maximum useable product storage space.
At room temperatures above 34oF (1.1oC) and evaporating temperatures no lower than 27oF (-2.8oC) the air flowing through the coil will accomplish the defrost (Air Defrost).
At room temperatures 34oF and below (to -10oF) positive defrosting is required (Electric defrost) . These will require the use of: 1. Time Clock (to initiate and terminate the defrost cycle), 2. Defrost termination thermostat (to prevent unnecessary
prolonged heating and steaming of the coil once all the frost and ice has melted). And if a freezer, 3. Fan delay thermostat (to prevent evaporator fans starting up right away and blowing water on to the fan blades, guards and floor).
This evaporator coil must not be exposed to any abnormal environments (acidic or caustic) that can result in coil corrosion and leaks. Consult factory for optional baked on phenolic protective coatings. These unit coolers are for use primarily on R407A, R407C, R404A/R507, R22 and R134a refrigerants and their approved alternatives / replacements.
LOCATION The unit location in the room should be selected to ensure uniform air distribution throughout the entire space to be refrigerated. Be sure that the unit does not draw air in, or blow directly out, through an opened door and that the product does not obstruct the free circulation of air. Allow a minimum of 24″ clearance at each end. Two-Way Evaporators draw air through the fans and discharge air through both coils.
Consideration should be given to the coil location in order to minimize the piping run length to the condensing unit and floor drain.

EXPANSION VALVE (TXV) SELECTION All units require the use of an externally equalized expansion valve. (A 1/4″ (6 mm) O.D. equalizer line has been provided on the coil) TX valves should not be selected strictly by their nominal ton rating. (This rating is based at a specific pressure differential and entering liquid temperature). Since applications will differ it is suggested the following selection procedure be followed.
1. Determine actual unit cooler BTUH or KW (thermal). The nominal rating is based at 10oF T.D. (5 .5°C) (Room Temp. minus Evap. Temp.). Note that a higher / lower operating T.D.will increase / decrease this capacity rating by their direct ratio.
2. Determine the pressure drop across the valve by subtracting the suction (evaporating) pressure from the high side liquid pressure. Note: Also subtract the distributor pressure loss (use approx. 25 psig (1.1 bar) for R134a and 35 psig (2.4 bar) for R404A/R507/R22/ R407A/R448A).
3. Estimate entering liquid temperature. Temperatures lower than 100oF (37.7°C) increase valve capacity ratings. Refer to valve manufacturer’s specs for details.
4. Select valve from the valve manufacturer selection charts for the appropriate refrigerant, evaporating temp and pressure drop.
5. After following the manufacturer’s installation instructions and after the room has reached the desired temperature the valve superheat should be checked. This will confirm that the evaporator is operating properly and performing to maximum efficiency. The superheat should be around 5 to 8°F (2.7° to 4.4°C) for a 10 to 12°F (5.5 to 6.6°C) T.D. Too high or low a super heat will result in unsatisfactory system performance and possible compressor problems.
NOZZLE INSTALLATION All Two-Way Evaporators have nozzles installed at factory. For nozzle selection refer to selection table. In case it is required to install the nozzle at some point in the future, the nozzle retainer clip (in distributor) must be removed before inserting nozzle. Reinstall clip ensuring nozzle is properly in place.
MOUNTING Refer to dimensional drawing for recommended mounting arrangements. Formed mounting channels are provided for flush mounting to the ceiling. Ensure adequate clearance (at least 24″ (600 mm)) is provided at each end (to enable access to the electrical and refrig. compartments). Ensure that the ceiling is level since the drain pan has been sloped for drainage during the defrost cycle.
DRAIN LINE The drain line should be run from the drain connection, sloping at least 1/4″ (6 mm) per foot. A trap in a warm area outside the room will allow proper draining through the tubing. Connection should be made to proper drainage facilities that comply with local regulations.

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INSTALLATION INSTRUCTIONS

KTM – TWO-WAY EVAPORATORS

DRAIN LINE (cont’d) To prevent freeze-up when the temperature of the refrigerated space is 35oF (1.7°C) or lower, the drain line should be heated along its run inside the cold room. The heated drain line should be insulated. It is recommended that the heater be energized at all times. A heat input of 20 watts per foot in a 28°F (-2.2°C) room, is satisfactory. Drain line heaters are not required for constant room temperature above 35°F (1.6°C). Ensure that the drain line has sufficient slope for proper drainage (prevention of ice build up/blockage in pan).
PIPING Refrigerant line sizes are important and may not be the same size as the coil connections. Consult “Recommended refrigerant line sizes” charts in any standard reference book for proper line sizing. Refrigerant piping and control system should be designed to prevent possible liquid slugging (from oil or refrigerant) of the compressors on start-up after the defrost cycle. On Hot Gas Defrost Systems the suction accumulator should be at least 2.5 times the coils operating charge. See Dimensional data for line locations. Reverse Cycle models include a check valve (unmounted) packaged along with the nozzle in the refrig. connection compartment end panel.
WIRING Wire system in accordance with governing standards and local codes. See data and wiring diagrams on pages 7 to 12 for wiring arrangement. Electrical wiring is to be sized in accordance with minimum circuit ampacity rating (MCA). For ease of identifying the proper wiring terminal, unit wiring is color coded and terminal block connections are identified.

After Start-Up: 1. Check the oil level to be sure the oil charge is correct. 2. On initial start up the fans do not start until coil
temperature is pulled down to approximately 35°F (1.7 °C) on the hot gas coil. Also, it is normal for the fans to cycle a few times until the room temperature is pulled down. 3. Fan/Heater control and defrost termination control is factory installed for reverse cycle defrost operation. 4. In general, evaporators running with a TD of 10°F should have a superheat reading of 5 to 8°F (2.7°C to 4.4°C). For evaporators with a higher TD, the superheat should be 8 to 12°F (4.4 to 6.6 °C). 5. Heavy moisture loads are usually encountered when starting the system for the first time. This will cause a rapid build-up of frost on the unit cooler. During the initial pull down, we suggest that the frost build-up be watched and defrosted manually as required. This may be done by rotating the inner dial on the timer until the pin in the outer dial is directly opposite the timer pointer. (Paragon 814520 Timer by others). 6. Observe that the system goes through at least one complete DEFROST CYCLE.
MAINTENANCE The unit should be periodically inspected for any dirt or build-up on the fin surface and cleaned if necessary with a soft whisk or brush. Also ensure coils inner and outer drain pans do not have any ice build-up from improper defrost operation. When replacing heater elements first remove heater retainer brackets and heater clips.

SYSTEM CHECK Before Start-Up: 1. All wiring should be in accordance with local codes. 2. Refrigerant lines should be properly sized. 3. Off cycle defrost and electric defrost systems preferably
must include a liqud line solenoid valve and suction accumulator. 4. Thorough evacuation and, dehydration has been performed. 5. The suction, discharge, and receiver service valves must be open. 6. The system preferably must include a liquid line drier moisture indicator and suction filter. 7. Pour enough water into the drain pan to allow a good check on drainage and seal the trap.

Visit
www.k-rp.com/esp
for Quick Start Guide, Operation Manual, etc

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NOTES

KTM – TWO-WAY EVAPORATORS

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NOTES

KTM – TWO-WAY EVAPORATORS

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PROJECT INFORMATION
System Model Number Serial Number Refrigerant Electrical Supply

KTM – TWO-WAY EVAPORATORS
Date of Start-Up Service Contractor Phone E-mail

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PRODUCT SUPPORT RESOURCES

KTM – TWO-WAY EVAPORATORS

web: www.k-rp.com/ktm email: evaps@k-rp.com call: 1-844-893-3222 x520

email: troubleshooting@k-rp.com call: 1-844-893-3222 x529

web: www.k-rp.com/parts email: parts@k-rp.com
call: 1-844-893-3222 x504
web: www.k-rp.com/warranty email: warranty@k-rp.com call: 1-844-893-3222 x507

email: orders@k-rp.com call: 1-844-893-3222 x501

email: shipping@k-rp.com call: 1-844-893-3222 x503

HOW CAN WE HELP YOU? visit www.k-rp.com/contact

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“AS BUILT” SERVICE PARTS LIST

KTM – TWO-WAY EVAPORATORS

Service Parts List Label
To Be Attached HERE

COMPONENT
KeepRite Refrigeration Brantford, ON · Longview, TX 1-800-463-9517 info@k-rp.com www.k-rp.com
Due to the manufacturer’s policy of continuous product improvement, we reserve the right to make changes without notice.

26/06/23

References

• Commercial Refrigeration Systems & Solutions | KeepRite Refrigeration
• Contact Us | Commercial Refrigeration Products Manufacturer | KeepRite
• Commercial Refrigeration Condensing Units | KeepRite Refrigeration
• DEFROST KIT AND FUSE PACKAGE SELECTOR - KeepRite Refrigeration
• ESP+ - KeepRite Commercial Refrigeration
• KTM - Two-Way Medium Profile Evaporators - KeepRite Refrigeration
• Tech Support, Refrigeration Parts, Manuals & Warranty - KeepRite
• Tech Support, Refrigeration Parts, Manuals & Warranty - KeepRite

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