Bard ECON-S2-A Wall Mount Ventilation Instruction Manual
- June 14, 2024
- Bard
Table of Contents
ECON-S2-A Wall Mount Ventilation
Page 1 of 28
ECON-S2 & ECON-S3
Factory-Installed Vent Option with Enthalpy Outdoor Control
For Use with 1-1/2 Through 3 Ton
Wall-Mount Air Conditioners
and Heat Pumps
NOTE: These instructions are written to cover field-installed economizers, but
are also
included with factory-installed economizers. For factory-installed
economizers,
all portions addressing “installation” are for reference only.
Partial Flow Economizer with Exhaust
for Building Applications
Models:
INSTALLATION INSTRUCTIONS
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual : 2100-794
Supersedes: NEW
Date: 7-13-23
Manual 2100-794
Page 2 of 28
CONTENTS
GENERAL………………………………………………………….3
Nomenclature ……………………………………………..3
General Information………………………………………3
Field-Supplied Tools Needed …………………………..3
Unpacking ………………………………………………….3
Description …………………………………………………3
INSTALLATION OF FIELD-INSTALLED
ECONOMIZER…………………………………………………..4
Installation …………………………………………………4
Preparing Unit for Economizer Installation ……….4
Outdoor Air Sensor Installation ……………………..7
Economizer Installation……………………………….7
Economizer Checkout………………………………….9
Control Wiring Connection Diagrams………………..10
START-UP/CHECKOUT PROCEDURES ……………14
JADE™ Economizer Controller ……………………….14
Review/Customize System Setup………………….14
Enthalpy Settings ……………………………………….18
Economizer Sequence of Operation …………………19
Condition – Cool/Dry OA Conditions………………19
Condition – Warm/Humid OA Conditions ………..19
Economizer Operation for Single Stage ………….22
Balanced Climate Mode – S, Y and Z Option
Economizer Sequence of Operation ………………23
Economizer Operation – Balanced Climate Mode ..24
FIGURES
Figure 1 Wall-Mount Unit Access Panels ………….. 4
Figure 2 Condenser Exhaust Plate with Screen…… 5
Figure 3 Economizer and Return Fill Installation… 6
Figure 4 Outdoor Air Sensor Installation…………… 7
Figure 5 Control Panel…………………………………. 7
Figure 6 Mixed Air Temp Sensor Installation……… 8
Figure 7 Vent Option Door Installation……………… 9
Figure 8 Programmable Thermostat Connections
for Air Conditioner with Economizer …… 10
Figure 9 Programmable Thermostat Connections
for Heat Pump with Economizer ……….. 11
Figure 10 Non-Programmable Thermostat
Connections for Air Conditioner with
Economizer …………………………………. 12
Figure 11 Non-Programmable Thermostat
Connections for Heat Pump with
Economizer …………………………………. 13
Figure 12 JADETM Economizer Controller ………….. 14
Figure 13 100% Outside Airow Path……………… 19
Figure 14 Mixed Airow Path ………………………… 20
Figure 15 100% Closed Loop Airow Path ……….. 21
Figure 16 CO2 Sensor Default and Final Settings
Bard Part #8403-096 CO2 Controller …. 25
Figure 17 Wiring Diagram – Enthalpy Sensor ……….28
TABLES
Table 1 Economizer Application ……………………. 3
Table 2 System Setup Menu Levels ……………… 15
Table 3 Advanced Setup Menu Levels…………… 15
Table 4 Setpoints Menu Levels……………………. 16
Table 5 Checkout Menu Levels……………………. 16
Table 6 Status Menu Levels……………………….. 17
Table 7 Alarm Examples……………………………. 17
Table 8 Unit Operation with S (Part Flow), Y
and Z (Full Flow) Economizer Options … 28
GRAPHS
Graph 1 W18 Ventilation Delivery…………………. 26
Graph 2 W24 Ventilation Delivery…………………. 26
Graph 3 W30 Ventilation Delivery…………………. 27
Graph 4 W36 Ventilation Delivery…………………. 27
Economizer Features
• One piece construction—easy to install. Directdrive actuator eliminates
linkage.
• Exhaust air damper—built in with positive closed
position. Provides exhaust air capability to prevent
pressurization of tight buildings.
• JADE™ controller provides nearly limitless
customization on a solid, intuitive electronic
platform.
• Actuator Motor – 24 volt, power-open, springreturn, direct-coupled with
stall protection. Selfcentering shaft clamp and access cover facilitate
ease of replacement/maintenance.
• Proportioning-type control for maximum “free”
cooling economy and comfort with up to 100%
outside air.
• Enthalpy sensor to monitor outdoor air conditions.
• Minimum Ventilation Position available for required
ventilation of occupants or dilution of pollutants.
• Mixed air sensor to monitor outdoor and return air
to automatically modulate damper position.
Exposed moving parts.
Disconnect electrical power before
servicing.
Failure to do so could result in severe injury
or amputation.
! WARNING
Manual 2100-794
Page 3 of 28
Color
X – Beige
1 – White
4 – Gray
5 – Desert Brown
8 – Dark Bronze
A – Aluminum
S – Stainless Steel
GENERAL
General Information
The economizer should only be installed by a trained
heating and air conditioning technician. These
instructions serve as a guide to the technician
installing an economizer package, not as a step-by-step
procedure with which the mechanically inclined owner
can install the package.
The economizer housing is shipped in one carton,
which contains the electrical harness, miscellaneous
hardware and installation instructions.
The economizer installation requires the use of a 2-stage
cooling thermostat (if there is not one already present)
and requisite amounts of low voltage conductor wire for
two-stage cooling. The number of low-voltage control
conductors will vary depending upon application.
If using a master controller, the MC4002 controller is
designed specically to control two (2) redundant wall
mount units equipped with economizers.
Any wall mount unit equipped with an economizer must
also have a factory/eld installed low ambient control.
Please refer to appropriate model/year Specication
Sheet for requisite eld installed low ambient control
kit part numbers.
Field-Supplied Tools Needed
• Appropriate personal protection equipment,
including gloves and safety glasses
• 5/16″ nut driver
• Phillips head screwdriver
• Small flat head screwdriver for securing wire in
terminal blocks
• Electrical tools
• Multimeter
Unpacking
Upon receipt of the equipment, be sure to compare the
model number found on the shipping label with the
accessory identication information on the orders and
shipping document to verify that the correct accessory
has been shipped.
Inspect the carton housing of each economizer assembly
as it is received and, before signing the freight bill, verify
that all items have been received and there is no visible
damage. Note any shortages or damage on all copies
of the freight bill. The receiving party must contact the
last carrier immediately, preferably in writing, requesting
inspection by the carrier’s agent. Concealed damage not
discovered until after loading must be reported to the
carrier within 15 days of its receipt.
Description
ECON-S economizers are designed to be used with
the wall mount series air conditioners and heat
pumps, shown in Table 1, equipped with low ambient
controls. They are electromechanical economizer
systems designed to provide “free” cooling where
the outdoor air temperature/enthalpy is cool enough
to provide the needed cooling without running the
compressor, or in addition to the compressor. When
cooling is required, the system automatically takes
advantage of cold outdoor air when available and uses
it for rst stage cooling. This then reduces the need
to run the air conditioning compressor providing lower
operating costs and increasing the service life of the
equipment. If the outdoor air temperature/enthalpy
is too warm to be sufcient for cooling, the dry bulb
outdoor air temperature sensor detects the condition
and automatically closes the outdoor air intake/exhaust
damper, opens the return air damper and switches to
compressor-only operation.
Without attention from the end user, the economizer
assembly is meant to automatically achieve maximum
savings while ensuring appropriately cool space
temperatures. The economizer utilizes a fully
modulating damper actuator, which will control intake/
exhaust in order to obtain and maintain a factory-set
minimum supply air temperature. As a secondary
feature, the economizer assembly can be programmed
for a minimum ventilation based on an “occupied”
(or otherwise dedicated) 24V signal to satisfy fresh
air ventilation on populated structures or dilution of
internal pollutants.
ECON-S Series economizers are not for use with
variable capacity ECU models.
TABLE 1
Economizer Application
Low ambient control is required w/economizer for low
temperature operation.
Model For Use with the Following Units
ECON-S2 W18A
W24A
W18H
W24H
W18L
W24L
ECON-S3 W30A
W36A
W30H
W36H
W30L
W36L
Cabinet Size
2 – 2 Ton
3 – 3 Ton
(See Table 1)
ECON – S 2 – X
Economizer S – School
Economizer with Exhaust Model
Nomenclature
Manual 2100-794
Page 4 of 28
INSTALLATION OF FIELD-INSTALLED ECONOMIZER
Installation
MIS-4452A
MIS-4452 A
FILTER FILL PLATE
ACCESS DOOR
OPENING
BLOWER ACCESS
PANEL
VENT OPTION PANEL
(THIS PANEL IS DISCARDED)
CIRCUIT BREAKER
FILTER ACCESS
PANEL PANEL DOOR
CONDENSER EXHAUST
FILTER
CONTROL PANEL
DOOR
FILTER PARTITION ASEMBLY
INNER CONTROL
CONDENSER PARTITION
Preparing Unit for Economizer Installation
1. Disconnect power to unit.
2. Unpack the economizer assembly, which
includes the integral economizer with attached
electrical harness, mixed air sensor, body
panels, miscellaneous hardware and installation
instructions.
3. From existing wall mount unit, remove and save (or
discard) as directed (see Figure 1):
• Blower access panel and screws (save)
• Ventilation access panel (discard)
• Filter access panel (save)
• Filter (save)
• Outer and inner control panel doors and screws
(save)
4. Remove and discard the exhaust cover plate (save
screws).
5. Install new condenser exhaust plate with screen
over opening into condensor section (see Figure 2).
FIGURE 1
Wall-Mount Unit Access Panels
Electrical shock hazard.
Have a properly trained individual perform
these tasks.
Failure to do so could result in electric shock
or death.
! WARNING
Cut hazard.
Wear gloves to avoid contact with sharp
edges.
Failure to do so could result in personal injury.
! CAUTION
Manual 2100-794
Page 5 of 28
MIS-3620
SHOWN FACING DOWN
PARTITION SUPPORT ANGLE
PARTITION
CONDENSER PARTITION (HIDDEN)
CONDENSER EXHAUST PLATE WITH SCREEN
SCREEN MEDIA FACING
4 SCREWS
INSTALL COVER PLATE
PARTITION COVER
PLATE
FIGURE 2
Condenser Exhaust Plate with Screen
6. The unit includes a lter partition and tray assembly
installed below the blower. The ventilator can be
installed without moving this assembly, but it may
be benecial to loosen the front two (2) mounting
screws of the lter partition assembly. The assembly
can then be lifted up slightly to allow more room for
installation of the unit ventilator.
Install the return ll plate using three (3) screws as
shown in Figure 3 on page 6.
Manual 2100-794
Page 6 of 28
FIGURE 3
Economizer and Return Fill Installation
NOTE: The return fill plate will need to be installed before the economizer
assembly (see below).
MIS-4365
RIGHT HAND VENT LEFT HAND VENT
RIGHT HAND UNIT
FASTEN FILL BEHIND
FILTER TRAY WITH (3)
1012-086 SCREWS
LEFT HAND UNIT
Manual 2100-794
Page 7 of 28
FIGURE 5
Control Panel
FIGURE 4
Outdoor Air Sensor Installation
JADE PLUG IN TO SIDE OF
CONTROL PANEL
JADE GO TO ACTUATOR
WIRES FROM TOP OF
JADE PLUG IN TO SIDE OF
WIRES FROM TOP OF
RIGHT HAND UNITS:
WIRES TO
SENSOR
CONTROL PANEL
LEFT HAND UNITS:
WIRES FROM BOTTOM OF
REMOVE THIS KNOCKOUT
AND INSTALL WIRE GROMMET
JADE GO TO ACTUATOR
LEFT HAND UNITS: TERMINAL BOARD
LOW VOLTAGE
WIRES FROM BOTTOM OF
RIGHT HAND UNITS:
INCLUDED WITH THE VENT.
THE “Y1” TO “Y2” JUMPER
MUST BE REMOVED FROM
THE LOW VOLTAGE
TERMINAL STRIP FOR
PROPER ECONOMIZER
TERMINAL BOARD
LOW VOLTAGE
OPERATION
SIDE UNIT
MIS-4026 A
CONTROL PANEL
Outdoor Air Sensor Installation
1. Remove and save both side grilles and screws.
2. Install the outdoor enthalpy sensor in the lower
condenser section on the side opposite the control
panel with two (2) screws provided as shown in
Figure 4.
3. Route the wire harness across the back of the unit
and secure with two wire ties (provided). Push
harness up through the grommet in the bottom of
the control panel (see Figure 5). Secure with wire
ties (provided) to the other wires in the grommet.
Ensure the wire harness cannot contact moving
parts or copper tubing. Replace side grilles.
Economizer Installation
1. Insert economizer into opening in wall unit, being
careful not to tear unit insulation. Fully seat
economizer assembly to the rear of the wall unit
cavity. Slide economizer towards control panel and
line up with return air opening in back of wall unit.
2. Re-install and tighten front lter tray mounting
screws (if loosened in Step 5 on page 4).
3. Insert 12-pin plug into front of control panel. See
Figure 5 below and Figure 6 on page 8.
4. Route the two orange wires along refrigerant lines
behind the lter bracket (if applicable) to terminate
at the blower partition (see Figure 6).
5. Install the mixed air temperature sensor and
bracket in blower partition (see Figure 6 TOP
VIEW) using the two existing holes. (Holes are in
opposite side on left hand units). If necessary,
remove the shield to aid in mounting the sensor
(replace after mounting sensor). Insert white, twopin sensor plug into sensor
housing. Coil excess
orange wires and wire tie to suction/discharge line.
6. Run black and red wire from economizer upper
12-pin wiring harness through grommet and other
bushing into the control panel and connect to the
black and red wire sensor wires (see Figure 5).
Wrap and wire tie the excess wire.
MIS-4026A
Manual 2100-794
Page 8 of 28
FIGURE 6
Mixed Air Temperature Sensor Installation
TOP OF OUTDOOR
FILTER/FILTER RACK
COIL
AFTER SLIDING THE VENT PACKAGE
INTO THE WALL MOUNT, SLIDE IT
TOWARD THE CONTROL PANEL SIDE
ALIGNING IT WITH THE RETURN AIR
OPENING IN THE REAR
THE WIRE HARNESS
FROM THIS LOCATION
ON THE VENT PACKAGE
WILL PLUG INTO THE
FRONT SIDE OF THE
CONTROL PANEL
CONTROL PANEL
(RH SHOWN)
WHEN INSTALLING ECON-S
POSITION SO THAT HOLE FROM LIP IS
CENTERED OVER HOLE IN CONDENSER
GRILLE TO INSERT A SELF DRILLING SCREW.
MIS-4019
JADE CONTROL ON OPPOSITE
SIDE FOR LEFT HAND UNITS
6. Remove the Y1-Y2 jumper from the low voltage
terminal strip (this jumper is already removed
in units with factory-installed economizers).
If Balanced Climate is desired, the secondary
jumper must be removed from the vent harness by
disconnecting the purple and yellow/white jumper
in the vent harness.
WIRE TIE
FILL AND THROUGH
FRONT VIEW
FILTER SUPPORTS
WIRES FROM ECONOMIZER
LOW VOLTAGE WIRE
SUCTION LINE
WIRE TIE TO
BEHIND FILTER BRACKET
INSTALL TEMPERATURE
SENSOR TO BLOWER
PARTITION. ROUTE ORANGE
INTEGRATED
ECONOMIZER
LOCATING
GUAGE
SENSOR BRACKET
MIXED AIR TEMPERATURE
TOP VIEW
PART #113-468
ORANGE WIRES
MIXED AIR TEMPERATURE SENSOR
PART #8602-058 (C7250A1001)
MIS-3622
FRONT VIEW
OPPOSITE SIDE FOR LEFT-HAND UNITS
Manual 2100-794
Page 9 of 28
FIGURE 7
Vent Option Door Installation
MIS-4020
FILTER DOOR
LOCATED BEHIND
PANEL
INSERT (4) SCREWS
TO HOLD DOOR IN
PLACE.
MIST ELIMINATOR
JADE LOCATION
BEHIND PANEL
Economizer Checkout
1. Complete economizer checkout using economizer
control touchpad (see CHECKOUT on page 16).
2. After conrming economizer operation, install the
mist eliminator (as shown in Figure 7—with airow
arrow pointed towards unit) and blower, lter and
vent access panels.
(LOCATED ON OPPOSITE SIDE ON LEFT-HAND UNITS)
Manual 2100-794
Page 10 of 28
Control Wiring Connection Diagrams
The control wiring diagrams in Figures 8 – 11 represent
typical control wiring for single units controlled by
individual thermostats. If thermostats other than those
referenced are used, the installer must verify output
functions accordingly.
For dual unit installation utilizing lead/lag controller
systems, complete details are contained in MC4002
Series Lead/Lag Controller installation manual 2100-
614. For operation with MV5000 lead/lag controller,
see MV5000 installation manual 2100-636.
FIGURE 8
Programmable Thermostat Connections for Air Conditioner with Economizer
Thermostat R GC Y2Y1 O/B W2 W1/E L A YO/D
Bard #8403-060
12-Pin 9 6 11 4 1012
Vent Plug
23 5 7
CO2 OUT
Optional CO2 Controller
Bard Part #8403-096
6
5
4
3
2
1
TEMP-OUT
24VAC
R W3 21 654 Unit Low
Voltage
Term. Strip
RT C G Y1 Y2 B/W1 W2 L DA 3
jumper will be omitted when shipped. For units with economizers, the balanced
climate
8
7
6
Do not connect “A” from thermostat if optional CO2 controller is used
0-10 VDC modulating C02 control signal for modulating ventilation
control (optional for ECON only) 5
Change model configuration from heat pump to heat/cool. Must be configured to
programmable
and fan set to be programmed fan for the “A” output to function during
scheduled occupied
periods. Must be configured for multi-stage for Y1 output to be active 1st
stage cooling. For dehumidification, must be configured for “No Economizer”
for YO/D to be active for humidity control.
4
Factory installed jumper. Remove jumper and connect
to N.C fire alarm circuit if emergency shutdown required.
3
2 Wire not needed below 15KW.
Wire required for dehumidification models only.
1
Do not add these wires if setting up for modulating control. See note 6.
Install jumper for 1 stage electric heat on units with less than 15KW
9
If the economozier is field installed, jumper must be removed. If economizer
is factory installed,
jumper is in the economizer section. Refer to economizer manual for balanced
climate option
W1/E
SC SC SC
Completestat
Model #CS9B-THOA or Model #CS9BE-THOA
24V COM G Y1 Y2 O/B W2 L DA GND
5
MIS-4080 C ALL VENT OPTIONS PLUG IN HERE
2
3
3
1
6
4
7
If not equipped with a ventilation option to plug in, a jumper plug must be
installed.
4 2
8 9
Manual 2100-794
Page 11 of 28
FIGURE 9
Programmable Thermostat Connections for Heat Pump with Economizer
Thermostat R GC Y2Y1 O/B W2 W1/E L A YO/D
Bard #8403-060
12-Pin 9 6 11 4 1012
Vent Plug
23 5 7
CO2 OUT
Optional CO2 Controller
Bard Part #8403-096
6
5
4
3
2
1
TEMP-OUT
24VAC
R W3 21 654 Unit Low
Voltage
Term. Strip
RT C G Y1 Y2 B/W1 W2 L DA 3
W1/E
SC SC SC
Completestat
Model #CS9B-THOA or
Model #CS9BE-THOA
24V COM G Y1 Y2 O/B W2 L DA GND
Factory installed jumper. Remove jumper to activate Balanced Climate TM Mode.
A 2-stage thermostat is recommended for balanced climate mode. Y1 Y2 jumper
not present if economizer is factory installed. Units with economizers have
balanced
climate jumper in economizer, refer to economizer manual. The jumper is
factory removed in the unit and on jade for CHY models.
MIS-4063 F
8
ALL VENT OPTIONS PLUG IN HERE
9
2 3
1
3
7
4
Do not connect “A” from thermostat if optional CO2 controller is used
6
1
4
5
If not equipped with a ventilation option to plug in, a jumper plug must be
installed.
Completestat not compatible with CHY models.
Do not add these wires if setting up for modulating control.
0-10 VDC modulating C02 control signal for modulating ventilation
2
6
control (optional for ECON only – see vent instruction manuals)
5
dehumidification, must be configured for “No Economizer” for YO/D to be active
for humidity
periods. Must be configured for multi-stage for Y1 output to be active 1st
stage cooling. For
8
control.
and fan set to be programmed fan for the “A” output to function during
scheduled occupied to N.C fire alarm circuit if emergency shutdown required.
4
Factory installed jumper. Remove jumper and connect
Wire not needed below 15KW.
3 Wire required for dehumidification models only.
2
7
Ensure model configuration is heat pump and not heat/cool. Must be configured
to programmable
9
Manual 2100-794
Page 12 of 28
IMPORTANT NOTE
An additional wire change is required if jumper 4 is used which connects “A”
to “G” (shown on Figures 10 and
11). The red/white wire on the blower interlock relay (located on the vent
control plate) needs to be moved from
the “common” terminal to the “normally closed” terminal. If this change is not
made, the relay will latch on once
the “A” signal is received and the blower will not turn off. Refer to page 28
to see the vent wiring diagram with
this change called out.
FIGURE 10
Non-Programmable Thermostat Connections for Air Conditioner with Economizer
CO2 OUT
Optional CO2 Controller
Bard Part #8403-096
6
5
4
3
2
1
TEMP-OUT
24VAC
R W3 21 654 Unit Low
Voltage
Term. Strip
RT C G Y1 Y2 B/W1 W2 L DA 3
Factory installed jumper. Remove jumper to activate Balanced Climate™ Mode.
A 2-stage thermostat is recommended for Balanced Climate mode. 9
5 Do not add these wires if setting up for modulating control. See note 6.
7
8 Jumper needs added.
For 8403-058, change “system type”, set up Function 1, From 5 (2 Heat/ 1 Cool
heat Pump)
to 6 (2 Heat / 2 Cool Conventional). For 8403-059, No change required.
2B Install Jumper for 1 stage electric heat on units with more
than 10KW.
0-10 VDC Modulating CO2 control signal for modulating ventilation control
(Optional for ECON Only) 6
For vent operation, add jumper if optional CO2 controller is not used. Vent
will run while blower is energized. 4
Factory installed jumper. Remove jumper and connect
to N.C fire alarm circuit if emergency shutdown required.
3
2A Wire not needed below 15KW.
Wire required for dehumidification models only.
1
12-Pin 9 6 11 4 1012
Vent Plug
23 5 7
R W
ALL VENT OPTIONS PLUG IN HERE
Rc C Y
4
2A
3
R Rc C G Y Y2 W W2
356 4
Mechanical Humidistat
8403-038
Electronic Humidistat
Units With Dehumidification
8403-047
1
or T6 Pro 8403-090
G
If not equipped with a ventilation option to plug in, a jumper plug must be
installed.
(TH522OD1219/U)
8403-059
(TH522OD1151)
8403-058
6
2B
8
7
T4 Pro 8403-089 BO
5
9
MIS-4079 B
Manual 2100-794
Page 13 of 28
IMPORTANT NOTE
An additional wire change is required if jumper 4 is used which connects “A”
to “G” (shown on Figures 10 and
11). The red/white wire on the blower interlock relay (located on the vent
control plate) needs to be moved from
the “common” terminal to the “normally closed” terminal. If this change is not
made, the relay will latch on once
the “A” signal is received and the blower will not turn off. Refer to page 28
to see the vent wiring diagram with
this change called out.
FIGURE 11
Non-Programmable Thermostat Connections for Heat Pump with Economizer
CO2 OUT
Optional CO2 Controller
Bard Part #8403-096
6
5
4
3
2
1
TEMP-OUT
24VAC
R W3 21 654 Unit Low
Voltage
Term. Strip
RT C G Y1 Y2 B/W1 W2 L DA 3
FACTORY INSTALLED JUMPER. JUMPER IS NOT INSTALLED ON UNIT WITH ECONOMIZERS.
JUMPER IS LOCATED IN JADE WIRING HARNESS.
5 DO NOT ADD THESE WIRES IF SETTING UP FOR MODULATING CONTROL. SEE NOTE 6.
7 JUMPER NEEDS ADDED.
0-10 VDC MODULATING CO2 CONTROL SIGNAL FOR MODULATING VENTILATION CONTROL
(OPTIONAL FOR ECON ONLY) – SEE VENT INSTALLATION MANUAL. 6
FOR VENT OPERATION, ADD JUMPER IF OPTIONAL CO2 CONTROLLER IS NOT USED.
VENT WILL RUN WHILE BLOWER IS ENERGIZED.
FOR ECON & CRV-V, AN ADDITIONAL WIRE CHANGE IS REQUIRED.
SEE INSTALL MANUAL
4
FACTORY INSTALLED JUMPER. REMOVE JUMPER AND CONNECT TO N.C FIRE ALARM CIRCUIT
IF EMERGENCY SHUTDOWN REQUIRED.
3
2 WIRE NOT NEEDED BELOW 15KW.
WIRE REQUIRED FOR DEHUMIDIFICATION MODELS ONLY.
1
8
HUMIDISTAT 8403-100 WILL NEED TO BE CONFIGURED FOR DEHUMIDIFICATION IN THE
MENU.
SEE USER’S MANUAL 9
12-Pin 9 6 11 4 1012
Vent Plug
23 5 7
MIS-4122 D
ALL VENT OPTIONS PLUG IN HERE
8403-038
If not equipped with a ventilation option to plug in, a jumper plug must be
installed.
1 4
2
3
R Rc C G Y Y2 O/B AUX
Mechanical Humidistat
Units With Dehumidification
T6 Pro 8403-090
R Rc C G Y B O W
C R U/DEH U/DEH
6
7
E
T4 Pro 8403-089
8
ELECTRONIC HUMIDISTAT
ELECTRONIC HUMIDISTAT
8403-100
OR
5
8403-047
9
Manual 2100-794
Page 14 of 28
JADE™ Economizer Controller
W7220 controller offers unparalleled exibility and
expansion in a dependable and solid electronic
platform.
• Multiple economizer applications from one
controller.
• Nearly limitless customization of setpoints.
• Internal checkout menu provides fast performance
assessment.
• Alarms menu provides assistance in
troubleshooting.
Memory: User-dened setpoints remain in nonvolatile ash memory regardless of
electrical outage
duration. Control voltage below 18V may cause erratic
performance.
START-UP/CHECKOUT PROCEDURES
FIGURE 12
JADETM Economizer Controller
MENU UP
(EXIT)
BUTTON
SCROLL
(UP/DOWN)
BUTTONS
SELECT (ENTER)
BUTTON
2 LINE
LCD
From the factory, the JADE™ economizer controller
has been preset with “default” values that were predetermined as optimum for
equipment buildings,
and these are shown in Tables 2 – 4. However, it is
important to review and/or customize these operational
values per owner specications in order to guarantee
satisfactory performance.
The installing contractor can easily access the JADE™
programming by the integral keypad and LCD display.
There are six (6) basic MENU categories to navigate:
1. STATUS – provides real-time access to sensor
input, damper and equipment operation.
2. SETPOINTS – customizable operational
parameters.
3. SYSTEM SETUP – customizable application
programming (see Revew/Customize System
Setup).
4. ADVANCED SETUP – further application and
operational options.
5. CHECKOUT – instantly activate and verify
economizer functions.
6. ALARMS – displays alarms and pinpoints problem
areas.
Review/Customize System Setup
Before being placed in service, the JADE™ economizer
controller programming should be reviewed/customized
through the following steps:
1. SYSTEM SETUP: from the main screen, press the
SCROLL (UP/DOWN) BUTTONS to navigate through the
six (6) basic menu items to the SYSTEM SETUP menu.
– Push the SELECT (ENTER) BUTTON to choose the
SYSTEM SETUP menu.
– Navigate through the multiple levels of SYSTEM
SETUP by pushing the SCROLL (UP/DOWN)
BUTTONS.
– To change a specic parameter in the SYSTEM
SETUP menu, press the SELECT (ENTER)
BUTTON to display its current value. Press the
SCROLL (UP/DOWN) BUTTONS to change or
increase/decrease value. Press the SELECT
(ENTER) BUTTON to save the new customized
value—“CHANGE STORED” will be displayed.
Press the SELECT (ENTER) BUTTON again to
return to current menu parameter.
– For specic SYSTEM SETUP level information,
refer to Table 2.
NOTE: During an extended level of inactivity, the
display of the JADE™ economizer controller will begin
to automatically scroll through the various levels of the
STATUS menu as a screensaver. Each level will stay for
approximately 5 seconds before changing to the next
level.
Manual 2100-794
Page 15 of 28
TABLE 2
System Setup Menu Levels
TABLE 3
Advanced Setup Menu Levels
Menu Level Default
Value Range Notes
INSTALL 01/01/10 Display Order = MM/DD/YY
Setting Order = DD/MM/YY
UNITS DEG °F °F / °C Sets controller to read in
either measurements
EQUIPMENT HP(B) HP Heat Pump HP
CONV = A/C
AUX IN HP(B) HP(O)
HP(B
Energize on Cool
Energize on Heat
FAN SPEED 1 Speed 1 Speed
2 Speed
FAN CFM 5000 100 to
15000 Not applicable
AUX OUT EXH2
NONE
ERV
EXH2
SYS
Product can be used to
signal other devices
OCC INPUT INPUT or
ALWAYS
INPUT is for dedicated OCC
signal, ALWAYS is for all
other situations
FACTORY
DEFAULT NO YES or
NO
Resets to factory defaults if
changed to YES
Menu Level Default
Value Range Notes
MA
LOW
SET
45°F 35-55° Temp to activate freeze
protection — Close Damper
FREEZE
POS CLO CLO or
MIN
Damper position upon freeze
protection
STG3
DLY 15 MIN 0 to 4.0h
or OFF
Delay for 3rd Stage Cooling –
allows for 3 stages of cooling,
one stage for econ & two
stages for compressor
DMPR
POS CLO CLO or
OPN
Where damper goes upon
shutdown signal
MA T
CAL 0.0°F
+/-2.5°F
from
actual
reading
Mixed Air Sensor temperature
calibration
OA T
CAL 0.0°F
+/-2.5°F
from
actual
reading
Outdoor Air Sensor
temperature calibration
OAS H
CAL 0%
+/-10%
from
actual
reading
Outdoor Air Humidity Sensor
calibration for economizers
using temp/humidity sensor
- In SYS SETUP, the correct Equipment setting is HP
and for the AUX2 IN is HP (B) in all applications.
This is correct for both air conditioner and heat
pump equipment in order to have correct operating
sequences for the economizers. DO NOT change to
CONV = A/C setting just because the equipment is
an air conditioner and not a heat pump.
2. ADVANCED SETUP: from the main screen, press the
SCROLL (UP/DOWN) BUTTONS to navigate through
the six (6) basic menu items to the ADVANCED SETUP
menu.
– Push the SELECT (ENTER) BUTTON to choose the
ADVANCED SETUP menu.
– Navigate through the multiple levels of ADVANCED
SETUP by pushing the SCROLL (UP/DOWN)
BUTTONS.
– To change a specic parameter in the ADVANCED
SETUP menu, press the SELECT (ENTER)
BUTTON to display its current value. Press the
SCROLL (UP/DOWN) BUTTONS to change or
increase/decrease value. Press the SELECT
(ENTER) BUTTON to save the new customized
value—“CHANGE STORED” will be displayed.
Press the SELECT (ENTER) BUTTON again to
return to current menu parameter.
– For specic ADVANCED SETUP level information,
refer to Table 3. -
3. SETPOINTS: from the main screen, press the
SCROLL (UP/DOWN) BUTTONS to navigate through the
six (6) basic menu items to the SETPOINTS menu.
– Push the SELECT (ENTER) BUTTON to choose the
SETPOINTS menu.
– Navigate through the multiple levels of SETPOINTS
by pushing the SCROLL (UP/DOWN) BUTTONS.
– To change a specic parameter in the SETPOINTS
menu, press the SELECT (ENTER) BUTTON to
display its current value. Press the SCROLL (UP/
DOWN) BUTTONS to change or increase/decrease
value. Press the SELECT (ENTER) BUTTON
to save the new customized value—“CHANGE
STORED” will be displayed. Press the SELECT
(ENTER) BUTTON again to return to current menu
parameter.
– For specic SETPOINTS level information, refer to
Table 4 on page 16.
NOTE: At this point, the economizer assembly should
be fully functional and ready for preliminary testing.
Manual 2100-794
Page 16 of 28
TABLE 4
Setpoints Menu Levels
Menu Level Default
Value Range Notes
MAT
SET 53°F 38°F to
65°F
Mixed Air Temperature setpoint
at which the economizer
damper will begin to modulate
to maintain setting
LOW T
LOCK 0°F -45°F to
80°F
Low outdoor ambient
temperature for compressor
lockout
ENTH
CURVE ES3
ES1,
ES2,
ES3,
ES4 or
ES5
Enthalpy boundary “curves”
for economizers using temp/
humidity sensor, see “Enthalpy
Settings” explanation
MIN
POS 2V 2 to 10
VDC
Actuator voltage for Minimum
Position – see Minimum
Position Note
EXH1 50% 0 to
100%
Setpoint for damper if exhaust
fan is powered by economizer
EXH2 6% 0 to
100% Setpoint for AUX output signal
DCV SET
(See NOTE
under Table
7 on page
- 1100 500 to
2000
Displays only if a CO2 sensor
is connected. Setpoint for
Demand Control Ventilation
of space. Above the setpoint,
the OA dampers will modulate
open to bring in additional OA
to maintain a space ppm level
below the setpoint.
TABLE 5
Checkout Menu Levels
MINIMUM POSITION NOTE: Minimum position
setting has been preset to 10V which when connected
to MC4002 Lead/Lag Controller System will allow
economizer to drive wide open per emergency ventilation
strategy as detailed in MC4002 Instructions. This may
require resetting to a lower value per job specifications.
4. CHECKOUT: from the main screen, press the
SCROLL (UP/DOWN) BUTTONS to navigate through the
six (6) basic menu items to the CHECKOUT menu.
– Push the SELECT (ENTER) BUTTON to choose the
CHECKOUT menu.
– Navigate through the multiple levels of CHECKOUT
by pushing the SCROLL (UP/DOWN) BUTTONS.
– To perform a specic test in the CHECKOUT menu,
press the SELECT (ENTER) BUTTON to choose a
particular exercise, “RUN?” will appear. Press the
SELECT (ENTER) BUTTON again to activate this
exercise. After a short pause, “IN PROGRESS” will
appear as the test activates. “DONE” will display
after the test is complete. Press the MENU UP
(EXIT) BUTTON to end the test and/or turn off the
activated relay.
– For specic CHECKOUT level information, refer to
Table 5.
NOTE: Economizer assembly should be ready to
put into service. At any point during operation, in
economizer mode or idle, real-time information from
sensors and integral components can be accessed from
the STATUS menu.
5. STATUS: from the main screen, press the SCROLL
(UP/DOWN) BUTTONS to navigate through the six (6)
basic menu items to the STATUS menu.
– Push the SELECT (ENTER) BUTTON to choose the
STATUS menu.
– Navigate through the multiple levels of STATUS by
pushing the SCROLL (UP/DOWN) BUTTONS.
– As the STATUS menu simply gives input/output
information in real-time, there is no way to
change or otherwise alter the displayed criteria.
It is simply a window into the operation of the
economizer controller.
– For specic STATUS level information, refer to
Table 6.
NOTE: Upon power-up (or after power failure or low
voltage condition), the controller will begin a 5-minute
time delay before enabling mechanical cooling.
NOTE: CHECKOUT functions bypass the normal
5-minute delay for compressor protection. Be sure to
allow for enough time to pass between tests so the
compressor is not damaged from extreme short-cycling.
Menu Level Notes
DAMPER VMIN-HS Positions damper to the minimum amount
of opening allowed by actuator
DAMPER VMAX-HS
Opens damper to the MIN POS level
indicated in the SETPOINTS menu. See
Minimum Position Note above.
DAMPER OPEN Forces damper to full open position, energizes
exhaust contacts
DAMPER CLOSE Positions damper to completely closed
position
CONNECT Y1-O Forces Y1-OUTPUT to compressor
CONNECT Y2-O Forces Y2-OUTPUT to compressor
CONNECT EXH1 Setpoint for damper if exhaust fan is
powered by economizer
CONNECT EXH2 Setpoint for AUX output signal
CONNECT AUX
Depending upon AUX OUT setting from
SYSTEM SETUP menu:
NONE – no action
ERV – 24VAC out for ERV & NOT
Economizer
SYS – 24VAC out for alarm
Manual 2100-794
Page 17 of 28
TABLE 7
Alarm Examples
Alarm(s) Notes
MA T SENS ERR Malfunctioning mixed air sensor
OA T SENS ERR Malfunctioning outdoor air sensor
ACT STALLED Actuator cannot reach desired percentage of
opening
SYS ALARM If AUX is set to SYS in SETPOINTS menu,
SYS will display upon any registered alarm
NOTE: This is not a complete list of alarms. Additional alarms
will display depending upon the parameter settings and
conguration and attached equipment.
NOTE: When using the Bard 8403-096 CO2 controller,
congure the sensor to 2-10VDC output (see CO2
sensor instructions). See also Figure 17 on page 24.
The JADE controller default setting is 1100 PPM. The
economizer will modulate to maintain this CO2 level
in the room. The default setting can be changed in
the SETPOINT menu in the DCV SET option. Default
settings and DCV MIN and DCV MAX will appear only
when the CO2 sensor is connected.
In the SETPOINT menu, change the MAX VENT setting
to 9.5 volts.
The CO2 controller is active at any time the A terminal
is energized.
The status of the CO2 input can be viewed at any time
in the STATUS menu.
TABLE 6
Status Menu Levels
Menu Level Default
Value Notes
ECON AVAIL YES/NO Indicates if conditions are
favorable for economizing
ECONOMIZING YES/NO Indicates if economizer is
actively economizing
OCCUPIED YES/NO
Indicates if dedicated 24V
occupied signal is being received
on terminal OCC
HEAT PUMP COOL/HEAT Displays actual compressor use
if in HEAT PUMP mode
COOL Y1-IN ON/OFF Indicates if 24V signal is being
received on terminal Y1-I
COOL Y1-OUT ON/OFF
Displays if controller is
actively calling for mechanical
compressor cooling (24V on
Y1-O)
COOL Y2-IN ON/OFF Indicates if 24V signal is being
received on terminal Y2-I
COOL Y2-OUT ON/OFF
Displays if controller is actively
calling for Stg. 2 cooling
(24V on Y2-O)
MA TEMP 0° to 140°F Current mixed air temp
OA TEMP -40° to
140°F Current outdoor air temp
OA HUM 0% to 100%
Current outdoor air humidity
for economizers using temp/
humidity sensor
DAMPER OUT 2.0 to 10.0 Displays voltage to actuator
ACT POS 0 to 100% Current % of opening
ACT COUNT N/A Current count of actuator cycles
from installation
ACTUATOR OK YES/NO Indicates potential fault
EXH1 OUT ON/OFF Output of EXH1 Terminal
MECH COOL ON 0, 1, or 2 Stages of mechanical cooling
currently active
NOTE: If there are any potential problems recognized
by the economizer controller, it may be registered
in the form of an alarm in the ALARM(S) menu. If
there is a period of inactivity AND there is an alarm
registering, the controller will randomly scroll through
the ALARM(S) menu items as a screensaver.
ALARM(S): from the main screen, press the SCROLL
(UP/DOWN) BUTTONS to navigate through the six (6)
basic menu items to the ALARM(S) menu.
– Push the SELECT (ENTER) BUTTON to choose the
ALARM(S) menu.
– Navigate through the current alarms in ALARM(S)
by pushing the SCROLL (UP/DOWN) BUTTONS.
– Once the alarm has been identied, and the cause
has been removed (e.g., replaced faulty sensor), the
alarm may erase itself. If a manual alarm-erasing
is required, it can be cleared from the display by
navigating to the desired alarm and pressing the
SELECT (ENTER) BUTTON to choose that specic
alarm. “ERASE?” will display. Press the SELECT
(ENTER) BUTTON again. “ALARM ERASED” will
appear. Press the MENU UP (EXIT) BUTTON to
complete the action and return to the previous menu.
– For specic ALARM(S) information, refer to
Table 7.
Manual 2100-794
Page 18 of 28
Enthalpy Settings
If economizer is enthalpy-based and was shipped with
the temp/humidity sensor, the economizer must be
programmed for the specic enthalpy curve boundary
desired for “free” outdoor cooling. The available
enthalpy boundaries are all subject to specic OA
temperature, OA humidity and OA dew points. If all of
the OA conditions are below the specic points outlined
in each boundary, the conditions are good to economize
and economizer mode is set to “YES”. If some or all
the OA conditions are above the specic points outlined
in each boundary, the conditions are not good to
economize and the economizer mode is set to “NO”.
ES3 is factory default.
Manual 2100-794
Page 19 of 28
FIGURE 13
100% Outside Airow Path
MIS-4477
RETURN AIR
SUPPLY AIR COOLING COIL
EXHAUST AIR OUTDOOR AIR
CONDENSER AIR
ELIMINATOR
AIR FILTER
MIST
CONDENSER COIL
Economizer Sequence of Operation
Condition – Cool/Dry OA Conditions
• 1st Stage Cooling closes and sends signal to
JADE™ control. Since the air temperature outside
is cooler than the preset DRYBULB SET setting,
or is below the ENTH CURVE boundary in the
SETPOINTS menu, the actuator will power the
economizer damper to “economizer” mode as the
indoor blower motor starts. The mixed air sensor
senses a mixture of return air and cool outdoor
air and modulates opening to achieve preset MAT
SET setting in SETPOINTS menu. Compressor
operation is inhibited (see Figure 13).
Manual 2100-794
Page 20 of 28
FIGURE 14
Mixed Airow Path
RETURN AIR
SUPPLY AIR COOLING COIL
EXHAUST AIR OUTDOOR AIR
CONDENSER AIR
ELIMINATOR
AIR FILTER
MIST
CONDENSER COIL
MIS-3866
• 2nd Stage Cooling closes and sends a signal to
JADE™ control, which closes the Y1-O relay to
begin mechanical cooling. The economizer damper
REMAINS OPEN in tandem operation with the
compressor as long as the OA conditions do not
drop below the preset DRYBULB SET/ENTH
CURVE settings in the SETPOINTS menu (see
Figure 14).
• 3rd Stage Cooling (if available) closes and sends a
signal to JADE™ control, which closes the Y2-O
relay to begin 2nd stage mechanical cooling. The
economizer damper REMAINS OPEN in tandem
operation with the compressor as long as the
temperature outside does not drop below the
preset DRYBULB SET setting in the SETPOINTS
menu (see Figure 14).
Manual 2100-794
Page 21 of 28
FIGURE 15
100% Closed Loop Airow Path
CONDENSER AIR
AIR FILTER
100% RETURN AIR
COOLING COIL SUPPLY AIR
DAMPER BLADE
ELIMINATOR
MIST
CONDENSER COIL MIS-3614
Condition – Warm/Humid OA Conditions
• 1st Stage Cooling closes and sends signal to
JADE™ control. Since the OA conditions are above
the preset DRYBULB SET/ENTH CURVE setting
in the SETPOINTS menu, the control will simply
close the Y1-O relay to initiate mechanical cooling.
The economizer damper will remain closed or in
a minimum ventilation setting depending upon
occupied status (see Figure 15).
• 2nd Stage Cooling (if available) closes and sends a
signal to JADE™ control. Since the OA conditions
are still above than the preset DRYBULB SET/
ENTH CURVE setting in the SETPOINTS menu,
the control will simply close the Y2-O relay
to initiate 2nd stage mechanical cooling. The
economizer damper will remain closed or in a
minimum ventilation setting depending upon
occupied status (see Figure 15).
Manual 2100-794
Page 22 of 28
THERMOSTAT/CONTROL CALLS
FOR 1ST STAGE COOLING
OA CONDITIONS
ABOVE DRYBULB
OR ENTHALPY
CURVE SETPOINTS
OA CONDITIONS
BELOW DRYBULB
OR ENTHALPY
CURVE SETPOINT
ECONOMIZER ONLY
OPERATION, MAT
SENSOR ATTEMPTS
TO MAINTAIN
PRESET DISCHARGE
AIR TEMP.
IS ADDITIONAL
COOLING REQ’D?
MECHANICAL
COOLING BEGINS,
ECON. DAMPER
CLOSED OR MIN.
POSITION
CONDITIONED
SPACE LOAD IS
PICKED UP BY
MECHANICAL
COOLING
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
CONDITIONED
SPACE LOAD IS
PICKED UP BY
ECONOMIZER
NO YES
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
MECHANICAL
COOLING BEGINS,
ECON DAMPER
REMAINS OPEN
CONDITIONED
SPACE LOAD IS
PICKED UP BY
ECONOMIZER AND
MECHANICAL COOL
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
Economizer Operation for Single Stage:
Manual 2100-794
Page 23 of 28
Unit
Operation
Occ.
Signal
Low Voltage 24VAC Speed Taps
Fan Speed Comp.
Oper. Damper
G Y1 Y2 W1 W2 A D 1 2 3-4-51
Fan Only Yes X X X Vent Off Min Pos
Fan Only No X X Vent Off Closed
BC Cooling Yes X X X X B Climate Econ Min Pos
BC Cooling No X X X B Climate Econ Closed
Full Load Cool Yes X X X X X X Lo/Med/Hi On Min Pos
Full Load Cool No X X X X X Lo/Med/Hi On Closed
1st Stage Heat Yes X X X Lo/Med/Hi Off Min Pos
1st Stage Heat No X X Lo/Med/Hi Off Closed
2nd Stage Heat Yes X X X X Lo/Med/Hi Off Min Pos
2nd Stage Heat No X X X Lo/Med/Hi Off Closed
Dehumidify2 Yes X X X X B Climate On Min Pos
Dehumidify2 No X X X B Climate On Closed
¹ Fan speed is selectable through the blower speed control terminal block. LO (default), MED or HI speeds can be used.
2 Dehumidication operation is disabled when a call for heating or cooling occurs. Unit runs at Balanced Climate speed
during dehumidication operation.
BC and B Climate − Balanced Climate
TABLE 8
Unit Operation with S (Part Flow), Y and Z (Full Flow) Economizer Options
Balanced Climate Mode – S, Y and Z Option
Economizer Sequence of Operation
Balanced Climate can be used for duct free and ducted
applications below 0.2″ W.C. ESP total static.
Call for cooling and ECONOMIZER IS NOT AVAILABLE
(due to outdoor conditions):
Y1 energizes mechanical cooling and the Balanced
Climate fan speed simultaneously. If the outdoor
conditions are not acceptable, the Y2 terminal will
energize the fan speed to the rated airow. When the
temperature drops below the Y2 setpoint, the unit will
return to the Balanced Climate fan speed. When the
cooling call is satised, the compressor will shut down
and the economizer will move to minimum position
(ventilation setting) and the fan will continue to run
at RATED airow if A is energized on the low voltage
terminal strip.
Call for cooling and ECONOMIZER IS AVAILABLE (due
to outdoor conditions):
Two stage cooling thermostat is required and connector
is disconnected at JADETM controller to enable
Balanced Climate mode (see wiring diagram 4056-
250* on page 28).
Unit has a call for ventilation: Damper to Min position
and fan will run at RATED airow. (When using
Balanced Climate mode, increase the minimum
position blade setting to allow 28% more outdoor air
CFM than rated.) Y1 energizes economizer and the
Balance Climate fan speed simultaneously. If the
temperature continues to rise, the Y2 terminal will
increase the fan speed to the RATED airow. When the
temperature drops below the Y2 setpoint, the unit will
return to the Balanced Climate fan speed. When the
cooling call is satised, the compressor will shut down
and the economizer will move to minimum position
(ventilation setting) and the fan will increase to run
at RATED airow if A is energized on the low voltage
terminal strip.
Manual 2100-794
Page 24 of 28
OA CONDITIONS
ABOVE DRYBULB
OR ENTHALPY
CURVE SETPOINTS
OA CONDITIONS
BELOW DRYBULB
OR ENTHALPY
CURVE SETPOINT
MECHANICAL COOLING BEGINS,
FAN OPERATES IN BALANCED CLIMATE SPEED,
ECONOMIZER DAMPER CLOSED OR
MIN. POSITION
ECONOMIZER ONLY OPERATION,
FAN OPERATES AT RATED SPEED,
MAT SENSOR ATTEMPTS TO MAINTAIN
PRESET DISCHARGE AIR TEMP.
IS ADDITIONAL
COOLING REQ’D?
CONDITIONED
SPACE LOAD IS
PICKED UP BY
ECONOMIZER
MECHANICAL COOLING
BEGINS IN BALANCED
CLIMATE SPEED,
ECON DAMPER REMAINS
OPEN
CONDITIONED SPACE LOAD
IS PICKED UP BY
ECONOMIZER AND
MECHANICAL COOL
THERMOSTAT CALLS
FOR 2ND STAGE COOLING,
BRINGS IN RATED
INDOOR FAN SPEED
IS ADDITIONAL
COOLING REQ’D?
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
THERMOSTAT/CONTROL CALLS
FOR 1ST STAGE COOLING
YES NO
THERMOSTAT CALLS
FOR 2ND STAGE COOLING,
BRINGS IN RATED
INDOOR FAN SPEED,
ECON DAMPER
CLOSED OR MIN
POSITION
CONDITIONED
SPACE LOAD IS
PICKED UP BY
MECHANICAL
COOLING
CONDITIONED
SPACE LOAD IS
PICKED UP BY
COOLING
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
NO YES
IS ADDITIONAL
COOLING REQ’D?
YES
THERMOSTAT IS SATISFIED
AND SYSTEM SHUTS DOWN
NO
CONDITIONED
SPACE LOAD
IS PICKED UP BY
ECONOMIZER
AND
MECHANICAL
COOL
Economizer Operation – Balanced Climate Mode
Connector disconnected from JADETM controller (see wiring diagram on page 28)
Manual 2100-794
Page 25 of 28
FIGURE 16
CO2 Sensor Default and Final Settings
Bard Part #8403-096 CO2 Controller
ON
OFFOFF OFF
ON
2 3 4 65
ON
1
PRESS UP AND DOWN
ARROWS TO ENTER
CONFIGURATION MODE
USE ARROWS TO SELECT
SETTING. PUSH MIDDLE
BUTTON TO CHANGE.
CONTROLLER WILL
SHOW SET.
IT HAS BEEN CONFIGURED.
DIP SWITCH TO “OFF” AFTER
CONTROLLER MOVE
NOTE: MENU
DIP SWITCH MUST
BE IN “ON” POSITION #5
TO CHANGE ANY
SETTINGS WITH
THE SIDE BUTTONS.
TO LOCK THE CO2
DIP SWITCHES MUST BE
POSITIONED AS SHOWN
FOR PROPER OPERATION
MIS-4025 C
Settings Recommended Default
RON
(RELAY ON SET POINT) 725
ROF
(RELAY OFF SET POINT) 700
DSP
(DISPLAY
CONFIGURATION)
C CT
UNI
(UNITS SELECTION) US US
COL
(CO2 LOW OUTPUT
RANGE)
700 0
COH
(CO2 HIGH OUTPUT
RANGE)
1500 2000
TOL
(TEMP. LOW OUTPUT
RANGE)
Not Used
TOH
(TEMP. HIGH OUTPUT
RANGE)
Not Used
BAR
(BAROMETRIC
PRESSURE)
See Instructions with
Controller For High
Altitude Installations
CAL
(CALIBRATION) Used for Field Calibration
Manual 2100-794
Page 26 of 28
GRAPH 1
W18 Ventilation Delivery
GRAPH 2
W24 Ventilation Delivery
Manual 2100-794
Page 27 of 28
GRAPH 3
W30 Ventilation Delivery
GRAPH 4
W36 Ventilation Delivery
Manual 2100-794
Page 28 of 28
FIGURE 17
Wiring Diagram − Enthalpy Sensor
OUTSIDE AIR
ENTHALPY
SENSOR
MIXED AIR TEMPERATURE
SENSOR 46
PURPLE
PURPLE/BLACK
BLUE
GRAY
GRAY
GREEN
BLACK
YELLOW/BLACK
YELLOW/WHITE
ORANGE
ORANGE
ORANGE ORANGE
ORANGE
ORANGE
BROWN
BROWN/WHITE
BROWN/WHITE
BROWN
BROWN
BROWN
RED/WHITE
RED
RED/YELLOW
RED
RED/WHITE
RED
JUMPER MUST BE
DISCONNECTED,AND
PURPLE WIRE NEEDS
CONNECTED TO 2-STAGE
HARNESS WIRE.
0-10 VDC CO2 CONTROL INPUT
6
CONTROL PANEL
4056-250 D
12 PIN PLUG
RELAY
Y2-O
PLUG
PLUG PLUG
48
PLUG
S-BUS
S-BUS
OAT –
OAT +
MAT –
MAT +
Y1-I
C
Y1-O
SINGLE STAGE COMPRESSOR
AUX1-O
EXH1
MODULE
ECONOMIZER CONTROL
E-GND
OCC
AUX2-I
Y2-I
ACT 24V
BLACK/WHITE
12
5
6
3
2
8
9
BLACK
11
3
BLACK
ACT –
ACT +
IAQ24V
IAQ –
IAQ +
DAMPER MOTOR
1
2
3
4
7
11
3 FEMALE
12 PIN PLUG
1
7
MALE
12 PIN PLUG
NO
NC COM
BLACK/WHITE
R
MALE
1
2
3
24V HOT INPUT
5
6
6
5
4
3
2
1
5
6
4
3
2
1
1
2
3
4
5
4
10
5
1
2
8
6
9
INTO SIDE OF UNIT
ECONOMIZER CONTROL PANEL
24V COMMON INPUT
4
2ND STAGE COOLING INPUT
ECON OPEN OUTPUT
OCCUPIED SIGNAL INPUT
CLOSE DAMPER INPUT
2ND STAGE COOLING OUTPUT
1ST STAGE COOLING INPUT
3
COMPRESSOR OUTPUT
8
DIRECT PLUG-IN
WSA UNITS
JUMPER DISCONNECTED FOR
BALANCED CLIMATE OPERATION.
CH UNITS
JUMPER IS FACTORY DISCONNECTED
FOR NORMAL UNIT OPERATION
Move this RED/WHITE wire from
COM to NC if jumper is used
between A and G. See pages 12 or
13 for additional information.
NOTE: The Y1-Y2 jumper must be removed from the unit low voltage terminal strip in order for the vent
to function. This jumper is already removed in units with factory-installed economizers.