Page 1
INSTALLATION INSTRUCTIONS
Full Flow Low Leakage Economizers
with Exhaust for Building Applications
Available with Enthalpy or Dry Bulb Outdoor Control
Models:
ECON-DB-2, ECON-DB-3, ECON-WD-2 & ECON-WD-3
Factory-Installed Vent Option
Use for Enthalpy or Dry Bulb Installations
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.
BMC, Inc.
Bryan, Ohio 43506
Manual : 2100-702C
Supersedes: 2100-702B
Date: 2-19-20
1 of 29
Page
Page 2
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 .......................... 8
Economizer Installation ..................................... 8
Economizer Checkout ..................................... 10
Control Wiring Connection Diagrams ..................... 10
START-UP/CHECKOUT PROCEDURES ............... 15
JADE™ Economizer Controller ............................ 15
Review/Customize System Setup ...................... 15
Enthalpy Settings .............................................. 19
Economizer Sequence of Operation .....................20
–
Condition
Condition
Cool/Dry OA Conditions .................. 20
–
Warm/Humid OA Conditions ...........20
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
ECONOMIZER FEATURES
• One piece construction—easy to install.
• 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.
FIGURES
Figure 1 Wall-Mount Unit Access Panels ............. 5
Figure 2 Condenser Exhaust Plate with Screen..... 5
Figure 3 Filter and Filter Brackets ...................... 6
Figure 4 Filter Bracket and Filter Bracket
Fill Plate Installation ............................ 7
Figure 5 Outdoor Air Sensor Installation .............. 8
Figure 6 Control Panel ....................................... 8
Figure 7 Mixed Air Temp Sensor Installation ........ 9
Figure 8 Vent Option Door Installation ............... 10
Figure 9 Programmable Thermostat Connections
for Air Conditioner with Economizer ..... 11
Figure 10 Programmable Thermostat Connections
for Heat Pump with Economizer .......... 12
Figure 11 Non-Programmable Thermostat
Connections for Air Conditioner with
Economizer ....................................... 13
Figure 12 Non-Programmable Thermostat
Connections for Heat Pump with
Economizer ....................................... 14
Figure 13 JADE
TM
Economizer Controller ............. 15
Figure 14 100% Outside Airflow Path ................. 20
Figure 15 Mixed Airflow Path ............................. 20
Figure 16 100% Closed Loop Airflow Path .......... 19
Figure 17 CO
Bard Part #8403-067 CO
Sensor Default and Final Settings
2
Controller ... 25
2
Figure 18 Wiring Diagram – Enthalpy Sensor ....... 28
Figure 19 Wiring Diagram –
Temperature Only Sensor .................... 29
TABLES
Table 1 Economizer Application ........................ 3
Table 2 System Setup Menu Levels ................. 16
Table 3 Advanced Setup Menu Levels .............. 16
Table 4 Setpoints Menu Levels ....................... 17
Table 5 Checkout Menu Levels ........................ 17
Table 6 Status Menu Levels ............................ 18
Table 7 Alarm Examples ................................. 18
Table 8 Unit Operation with S (Part Flow), Y
and Z (Full Flow) Economizer Options .. 23
GRAPHS
Graph 1 W/J18 Ventilation Delivery ................... 26
Graph 2 W/J24 Ventilation Delivery ................... 26
Graph 3 W/J30 Ventilation Delivery ................... 27
Graph 4 W/J36 Ventilation Delivery ................... 27
Manual 2100-702C
Page 2 of 29
Page 3
GENERAL
Economizer with Exhaust Model
Nomenclature
ECON – WD – 2
Economizer
DB – Temperature Only
WD – Wet/Dry Bulb
Cabinet Size
2 – 2 Ton
3 – 3 Ton
(See Table 1)
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 specifically to control two (2) redundant wall
mount units equipped with economizers.
Any wall mount unit equipped with an economizer must
also have a factory/field installed low ambient control.
Please refer to appropriate model/year Specification
Sheet for requisite field 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 identification 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-DB and ECON-WD 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 first 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 sufficient 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-DB and ECON-WD Series economizers are not
for use with variable capacity ECU models.
TABLE 1
Economizer Application
Model
ECON-DB-2
ECON-WD-2
ECON-DB-3
ECON-WD-3
Low ambient control is required w/economizer for low
temperature operation.
For Use with the Following Units
W/J17A
W/J18A
W/J24A
W/J30A
W/J36A
W/J18H
W/J24H
W/J30H
W/J36H
W/J17L
W/J18L
W/J24L
W/J30L
W/J36L
Manual 2100-702C
Page 3 of 29
Page 4
INSTALLATION OF FIELD-INSTALLED ECONOMIZER
Installation
!
WARNING
Electrical shock hazard.
Disconnect remote electrical power supply
or supplies before servicing.
Failure to do so could result in electric
shock or death.
!
WARNING
Exposed moving parts.
Disconnect all electrical power before
servicing.
Failure to do so can result in severe injury
or amputation.
!
CAUTION
Sharp metallic edges.
Take care and wear appropriate protective
devices to avoid accidental contact with
sharp edges.
Failure to do so can result in personal
injury.
Preparing Unit for Economizer Installation
1. Disconnect power to unit.
Unpack the economizer assembly, which
2.
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 (discard)
• 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).
6. Remove filter brackets if necessary (see Figure
3 on page 6): Two types of filter brackets have
been used with these wall mount units. If the
filter brackets are mounted flat, they can be used
with the economizer. If the filters are set at a
30°angle, they must be removed and discarded for
economizer installation. The circuit breaker offset
plate must be loosened and moved slightly to gain
access to several of the screws holding the filter
brackets in place. Tighten screws holding control
panel after filter brackets have been removed.
If filter brackets were removed in Step 6, proceed to
Step 7. If the brackets were not removed, proceed
to Outdoor Air Sensor Installation on page 8.
7. Install filter bracket fill plate as shown in Figure 4
on page 7.
8. Install provided filter brackets on economizer (see
Figure 4).
Manual 2100-702C
Page 4 of 29
Page 5
BLOWER ACCESS
CONDENSER EXHAUST PLATE WITH SCREEN
PANEL
FILTER BRACKETS
FIGURE 1
Wall-Mount Unit Access Panels
CIRCUIT BREAKER
ACCESS DOOR
FILTER ACCESS
PANEL
(THIS PANEL IS
DISCARDED)
VENTILATION ACCESS PANEL
(THIS PANEL ISDISCARDED)
Condenser Exhaust Plate with Screen
PARTITION COVER
INSTALL COVER PLATE
SCREEN MEDIA FACING
PLATE
PARTITION
FIGURE 2
INNER CONTROL
PANEL DOOR
CONTROL PANEL
DOOR
FILTER
CONDENSER EXHAUST
PLATE (DISCARD AND
SAVE SCREWS)
MIS-3619 A
4 SCREWS
CONDENSER PARTITION
PARTITION SUPPORT ANGLE
SHOWN FACING DOWN
(HIDDEN)
MIS-3620
Manual 2100-702C
Page 5 of 29
Page 6
FIGURE 3
REFERENCE
ANGLE
30
30° REFERENCE
ANGLE
BRACKET
LEFT FILTER
THERMISTOR
BRACKET
FILTER
RIGHT FILTER
LOCATION
MOUNTING HOLE
LOCATED BEHIND THE
C. BREAKER
OFFSET PLATE
FOR THE 30
RIGHT
FILTER BRACKET
Filter and Filter Brackets
MIS-3621
Manual 2100-702C
Page 6 of 29
Page 7
FIGURE 4
Filter Bracket and Filter Bracket Fill Plate Installation
INSTALL FILTER BRACKET
FILL PLATE WITH (2) SCREWS
(ONLY FOR 2-3 TON UNITS)
LONG FILTER
BRACKET
RIGHT HAND VENT
(4) REGULAR SCREWS
SHORT FILTER
BRACKET
LEFT HAND UNITRIGHT HAND UNIT
(4) REGULAR SCREWS
LEFT HAND VENT
LONG FILTER
BRACKET
MIS-3814
Manual 2100-702C
Page 7 of 29
Page 8
Outdoor Air Sensor Installation
SIDE UNIT
CONTROL PANEL
1. Remove and save both side grilles and screws.
2. Install the outdoor air sensor (temperature only or
enthalpy) in the lower condenser section on the
side opposite the control panel with two (2) screws
provided. Tube end of sensor should mount flush
with base (see Figure 5).
NOTE: The temperature-only sensor is shipped with
a bracket attached. The bracket is not needed for 2
and 3 ton Series 1 units and must be removed before
installation.
FIGURE 5
Outdoor Air Sensor Installation
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. 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. Connect 12-pin male plug into female plug in side
of the control panel as shown in Figure 6. See
wiring diagrams found on pages 11 – 14.
2. Remove (and discard) left and right filter brackets
from economizer assembly if existing wall mount
unit brackets are in place.
3. Insert economizer into opening in wall unit
between the filter rack (if not removed earlier) and
condenser section, being careful not to tear unit
insulation. To clear blowers, position economizer at
45° angle under the blowers. Fully seat economizer
assembly to the rear of the wall unit cavity. Slide
economizer to right and line up with return air
opening in back of wall unit.
LOW VOLTAGE
TERMINAL BOARD
RED AND BLACK
WIRES FROM
PLUG
EnthalpyTemperature Only
FIGURE 6
Control Panel
WIRES TO
SENSOR
TERMINAL BOARD
Manual 2100-702C
Page 8 of 29
LOW VOLTAGE
MIS-4005
WIRE HARNESS
Page 9
4. Route the two orange wires along refrigerant lines
INTEGRATED
FILTER SUPPORTS
BEHIND FILTER BRACKET
FILL AND THROUGH
FRONT VIEW
SUCTION LINE
WIRE TIE TO
LOW VOLTAGE WIRE
WIRE TIE
INSTALL TEMPERATURE
SENSOR TO BLOWER
PARTITION. ROUTE ORANGE
WIRES FROM ECONOMIZER
ECONOMIZER
LOCATING
GUAGE
behind the filter bracket (if applicable) to terminate
at the blower partition (see Figure 7).
5. Install the mixed air temperature sensor and
bracket in blower partition (see Figure 7) using
the two existing holes. If necessary, remove the
shield to aid in mounting the sensor (replace after
mounting sensor). Insert white, two-pin sensor plug
into sensor housing. Coil excess orange wires and
wire tie to suction/discharge line.
Mixed Air Temperature Sensor Installation
FILTER/FILTER RACK
AIRFLOW
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 6).
Wrap and wire tie the excess wire.
7. Remove hood front (grille), mist filter and control
door.
8. Lift economizer hood to unit and hold in position.
Line up four (4) holes in outer economizer hood
door (two on each side) with corresponding holes in
FIGURE 7
CONTROL PANEL
(RH SHOWN)
OPPOSITE SIDE FOR LEFT
HAND UNITS
TOP OFOUTDOOR
COIL
AFTER SLIDING THE VENT PACKAGE
INTO THEWALL MOUNT, SLIDE IT
TOWARD THE CONTROL PANELSIDE
ALIGNING IT WITHTHE RETURN AIR
OPENING IN THE REAR
THE WIRE HARNESS
FROM THISLOCATION
ON THE VENT PACKAGE
WILL PLUG INTOTHE
FRONT SIDE OFTHE
CONTROL PANEL
MIS-3765
MIXED AIR
TEMPERATURE SENSOR
BRACKET PART #113-468
ORANGE WIRES
TOP VIEW
MIXED AIR
TEMPERATURE SENSOR
PART #8602-058
(C7250A1001)
MIS-3622
Manual 2100-702C
Page 9 of 29
Page 10
unit and mount economizer hood to unit with four
(4) screws.
9. Connect vent option front to vent hood door (see
Figure 8) using ten (10) screws (supplied).
10. Connect economizer upper and lower 12-pin wiring
connectors to 12-pin wiring connectors inside
economizer control panel.
11. Re-insert filter into filter brackets. Arrow on filter
should point up.
12. Attach blower access panel.
Economizer Checkout
Since observation of motor/damper operation is difficult
after air hood installation, it is recommended the unit
be enabled for start-up now. If no power is available, or
if immediate start-up is not desired, continue with the
basic installation process by skipping to Step 4. The air
hood assembly can be partially disassembled at a later
time for start-up/checkout procedures.
1. Attach wall unit outer and indoor control panel
doors.
2. Turn power to unit on.
3. Complete economizer checkout using economizer
control touchpad (see CHECKOUT on page 17).
4. After confirming economizer operation, attach the
economizer hood mist eliminator (with airflow arrow
pointed towards unit), control door and front door.
Control Wiring Connection Diagrams
The control wiring diagrams on pages 11 – 14
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.
MIST ELIMINATOR
AIRFLOW
DIRECTION
(10) SCREWS TO SEAL
BETWEEN VENT OPTION& DOOR
FIGURE 8
Vent Option Door Installation
FILTER DOOR
INSERT (4) SCREWS
TO HOLD DOOR IN
PLACE.
12 PIN
CONNECTORS
HIDDEN COMPONENTS
FOR CLARITY
Manual 2100-702C
Page 10 of 29
JADE CONTROLLER LOCATION
MIS-3627
Page 11
FIGURE 9
Programmable Thermostat Connections for Air Conditioner with Economizer
Completestat
Model #CS9B-THO or
Model #CS9BE-THO
6
Thermostat
Bard #8403-060
Unit Low
Voltage
Term. Strip
12-Pin
Vent Plug
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuit if emergency shutdown required.
Wire not needed below 15K W.2
Wire required for dehumidification models only.
3
4
Do not connect "A" from thermostat if optional CO2 controller is used
0-10 VDC modulat ing C02 control signal for modulating ventilation
5
control (opti onal for ECON only)
SCSCSC
COM
24V
1
6
G
Y1 Y2 O/B L DA GND
B/W1
9
23 5 7
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
119
ALL VENT OPTIONS PLUG IN HERE
W1/E
W2
2
W1/E
2
7
W3
W2C GRT Y1 Y2
A
LO/BY2Y1R GC W2
4
L DA 3
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
6
periods. Must be conf igured for multi-stage for Y1 output to be active 1st stage cooling. For
dehumidificat ion, must be configured for "No E conomizer" for YO/D to be active for humidity
control.
7
Install jumper for 1 stage electric heat on unit s with less than 15KW
Do not add these wires if setting up for modulating control. See note 6.
8
Factory installed jumper. Remove jumper to act ivate Balanced Climate
9
A 2-stage thermost at is recommended for Balanced Cli mate mode.
4
YO/D
3
5
Optional CO2 Controller
3
65421R
4
1012
Bard Part #8403-067
1
2
3
4
5
6
8
™
mode.
24VAC
CO2 OUT
TEMP-OUT
MIS-4080
Manual 2100-702C
Page 11 of 29
Page 12
Completestat
Model #CS9B-THO or
Model #CS9BE-THO
6
Thermostat
Bard #8403-060
FIGURE 10
Programmable Thermostat Connections for Heat Pump with Economizer
SC
SC
SC
24V
COM
G
Y1 Y2 O/B L DA GND
W2
W1/E
W1/E
3
2
4
YO/D
A
LO/BY2Y1R GC W2
Unit Low
Voltage
Term. Strip
1
12-Pin
Vent Plug
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuit ifemergency shutdownrequired.
Wire not needed below 15KW.
2
Wire required for dehumidification models only.
3
Do not connect "A" from thermostat if optional CO2 controller is used
4
0-10 VDC modulating C02 control signal for modulating ventilation
5
control (optional for ECON only - see vent instruction manuals)
6
8
23 5 7
ALL VENT OPTIONS PLUG IN HERE
If not equipped with a ventilation option to plug i n, a jumper plug must be installed.
B/W1
119
2
4
3
W2C GRT Y1 Y2
L DA 3
W3
4
Ensure model configuration is heat pump and not heat/cool.Must beconfigured to programmable
and fan set to be programmed fan for the "A" output to functionduring scheduledoccupied
6
periods. Must be configured for multi-stage forY1 output tobe active1st stagecooling. For
dehumidification, must beconfigured for "No Economizer" for YO/D to beactive for humidity
control.
7
Do not add these wires if setting up for modulating control.
Factory installed jumper. Remove jumper to activate Balanced Climate
8
A 2-stage thermostat is recommended for Balanced Climate mode.
5
Optional CO2 Controller
Bard Part #8403-067
1
24VAC
2
CO2 OUT
3
TEMP-OUT
65421R
1012
4
5
6
7
mode.
™
MIS-4063 A
Manual 2100-702C
Page 12 of 29
Page 13
T4 Pro 8403-089
8403-058
(TH522OD1151)
8403-059
(TH522OD1219/U)
or T6 Pro 8403-090
7
FIGURE 11
Non-Programmable Thermostat Connections for Air Conditioner with Economizer
Units With Dehumidification
Rc
C
R
R W
Rc
G
Y
G
C
Y
W
Y2
B
O
W2
6
8
5
3
8403-038
Mechanical Humidistat
8403-047
4
Electronic Humidistat
9
Unit Low
Voltage
Term. Strip
B/W1
1
12-Pin
Vent Plug
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuitifemergencyshutdown required.
Wire not needed below 15KW.
2A
Install Jumper for 1 stageelectric heat on units with more
2B
than 10KW.
3
Wire required for dehumidification modelsonly.
For vent operation, add jumperif optional CO2 controller isnot used.
4
Vent will run while blower is energized.
5 Do not add these wires if setting up for modulating control. See note 6.
6
23 5 7
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
119
ALL VENT OPTIONS PLUG IN HERE
2A
3
6
2B
W2C GRT Y1 Y2
L DA 3
W3
4
4
0-10 VDC Modulating CO2 control signal for modulating ventilation control
6
(Optional for ECON Only)
For 8403-058, change "system type", set up Function 1, From 5 (2 Heat/ 1 Cool heat Pump)
7
to 6 (2 Heat / 2 CoolConventional). For 8403-059, No change required.
Jumper needs added.8
Factory installed jumper. Remove jumper to activate Balanced Climate™Mode.
9
A 2-stage thermostat is recommended for BalancedClimatemode.
IMPORTANT NOTE
65421R
1012
Optional CO2 Controller
Bard Part #8403-067
5
MIS-4079 A
1
24VAC
2
3
CO2 OUT
4
TEMP-OUT
5
6
An additional wire change is required if jumper 4 is used which connects "A" to "G" (shown on Figures 18 and
19 on pages 28 and 29). 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 pages 28 and 29
to see the vent wiring diagram with this change called out.
Manual 2100-702C
Page 13 of 29
Page 14
T4 Pro 8403-089
8403-058
(TH522OD1151)
8403-059
(TH522OD1219/U)
or T6 Pro 8403-090
7
FIGURE 12
Non-Programmable Thermostat Connections for Heat Pump with Economizer
Units With Dehumidification
BCRc YR G
O/BRc CR G Y Y2
O
AUX4E
W
8
56
3
8403-038
Mechanical Humidistat
8403-047
Electronic Humidistat
9
Unit Low
Voltage
Term. Strip
1
12-Pin
Vent Plug
Factory installed jumper. Remove jumper and connect
1
to N.C fire alarm circuitifemergencyshutdown required.
Wire not needed below 15KW.
2
Wire required for dehumidification modelsonly.
3
For vent operation, add jumperif optional CO2 controller isnot used.
4
Vent will run while blower is energized.
For ECON & CRV-V, an additional wire change is required.
See install manual
5
Do not add these wires if setting up for modulating control. See note 6.
6
23 5 7
ALL VENT OPTIONS PLUG IN HERE
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
B/W1
119
2
3
W2C GRT Y1 Y2
L DA 3
W3
6
4
4
0-10 VDC Modulating CO2 control signal for modulating ventilation control
6
(Optional for ECON Only) - See vent installationmanual.
For 8403-058, change "system type", set up Function 1, From 5 (2 Heat/ 1 Cool heat Pump)
7
to 6 (2 Heat / 2 CoolConventional). For 8403-059, No change required.
Jumper needs added.8
Factory installed jumper. Remove jumper to activate Balanced Climate™Mode.
9
A 2-stage thermostat is recommended for BalancedClimatemode.
Optional CO2 Controller
Bard Part #8403-067
1
24VAC
2
3
CO2 OUT
4
65421R
5
TEMP-OUT
5
6
1012
MIS-4122
IMPORTANT NOTE
An additional wire change is required if jumper 4 is used which connects "A" to "G" (shown on Figures 18 and
19 on pages 28 and 29). 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 pages 28 and 29
to see the vent wiring diagram with this change called out.
Manual 2100-702C
Page 14 of 29
Page 15
START-UP/CHECKOUT PROCEDURES
JADE™ Economizer Controller
W7220 controller offers unparalleled flexibility 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-defined setpoints remain in nonvolatile flash memory regardless of electrical outage
duration. Control voltage below 18V may cause erratic
performance.
FIGURE 13
JADETM Economizer Controller
2 LINE
LCD
MENU UP
(EXIT)
BUTTON
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 specifications in order to guarantee
satisfactory performance.
SCROLL
(UP/DOWN)
BUTTONS
SELECT (ENTER)
BUTTON
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 specific 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 specific SYSTEM SETUP level information,
refer to Table 2 on page 16.
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 2100-702C
Page 15 of 29
Page 16
TABLE 2
System Setup Menu Levels
TABLE 3
Advanced Setup Menu Levels
Menu Level
INSTALL 01/01/10
UNITS DEG °F °F / °C
EQUIPMENT HP(B) HP
AUX IN HP(B)
FAN SPEED 1 Speed
FAN CFM 5000
AUX OUT EXH2
OCC INPUT
FACTORY
DEFAULT
Default
Value
NO
Range Notes
Display Order = MM/DD/YY
Setting Order = DD/MM/YY
Sets controller to read in
either measurements
Heat Pump HP
CONV = A/C
HP(O)
HP(B
1 Speed
2 Speed
100 to
15000
NONE
ERV
EXH2
SYS
INPUT or
ALWAYS
YES or NOResets to factory defaults if
Energize on Cool
Energize on Heat
Not applicable
Product can be used to
signal other devices
INPUT is for dedicated OCC
signal, ALWAYS is for all
other situations
changed to YES
*
*
* 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 specific 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 specific ADVANCED SETUP level information,
refer to Table 3.
Menu Level
MA
LOW
SET
FREEZE
POS
STG3
DLY
DMPR
POS
MA T
CAL
OA T
CAL
OAS H
CAL
Default
Value
45°F 35-55°
CLO
15 MIN
CLO
0.0°F
0.0°F
0%
Range Notes
CLO or
MIN
0 to 4.0h
or OFF
CLO or
OPN
+/-2.5°F
from
actual
reading
+/-2.5°F
from
actual
reading
+/-10%
from
actual
reading
Temp to activate freeze
protection — Close Damper
Damper position upon freeze
protection
Delay for 3rd Stage Cooling –
allows for 3 stages of cooling,
one stage for econ & two
stages for compressor
Where damper goes upon
shutdown signal
Mixed Air Sensor temperature
calibration
Outdoor Air Sensor
temperature calibration
Outdoor Air Humidity Sensor
calibration for economizers
using temp/humidity sensor
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 specific 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 specific SETPOINTS level information, refer to
Table 4.
NOTE: At this point, the economizer assembly should
be fully functional and ready for preliminary testing.
Manual 2100-702C
Page 16 of 29
Page 17
TABLE 4
Setpoints Menu Levels
Menu Level
MAT
SET
LOW T
LOCK
DRYBLB
SET
ENTH
CURVE
MIN
POS
EXH1 50%
EXH2 6%
DCV SET
(See NOTE
under Table
7 on page
16)
Default
Value
53°F
0°F
60°F
ES3
2V
1100
Range Notes
38°F to
65°F
-45°F to
80°F
48°F to
80°F
ES1,
ES2,
ES3,
ES4 or
ES5
2 to 10
VDC
0 to
100%
0 to
100%
500 to
2000
Mixed Air Temperature setpoint
at which the economizer
damper will begin to modulate
to maintain setting
Low outdoor ambient
temperature for compressor
lockout
Maximum outdoor
temperature setting for “free”
economizer cooling
Enthalpy boundary “curves”
for economizers using temp/
humidity sensor, see “Enthalpy
Settings” explanation
Actuator voltage for Minimum
Position – see Minimum
Position Note
Setpoint for damper if exhaust
fan is powered by economizer
Setpoint for AUX output signal
Displays only if a CO
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.
sensor
2
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 specific 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 specific CHECKOUT level information, refer to
Table 5.
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.
TABLE 5
Checkout Menu Levels
Menu Level Notes
DAMPER VMIN-HS
DAMPER VMAX-HS
DAMPER OPEN
DAMPER CLOSE
CONNECT Y1-O Forces Y1-OUTPUT to compressor
CONNECT Y2-O Forces Y2-OUTPUT to compressor
CONNECT EXH1
CONNECT EXH2 Setpoint for AUX output signal
CONNECT AUX
Positions damper to the minimum amount
of opening allowed by actuator
Opens damper to the MIN POS level
indicated in the SETPOINTS menu. See
Minimum Position Note above.
Forces damper to full open position, energizes
exhaust contacts
Positions damper to completely closed
position
Setpoint for damper if exhaust fan is
powered by economizer
Depending upon AUX OUT setting from
SYSTEM SETUP menu:
NONE – no action
ERV – 24VAC out for ERV & NOT
Economizer
SYS – 24VAC out for alarm
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 specific STATUS level information, refer to
Table 6 on page 18.
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.
Manual 2100-702C
Page 17 of 29
Page 18
TABLE 6
Status Menu Levels
Menu Level
ECON AVAIL YES/NO
ECONOMIZING YES/NO
OCCUPIED YES/NO
HEAT PUMP COOL/HEAT
COOL Y1-IN ON/OFF
COOL Y1-OUT ON/OFF
COOL Y2-IN ON/OFF
COOL Y2-OUT ON/OFF
MA TEMP 0° to 140°F Current mixed air temp
OA TEMP
OA HUM 0% to 100%
DAMPER OUT 2.0 to 10.0 Displays voltage to actuator
ACT POS 0 to 100% Current % of opening
ACT COUNT N/A
ACTUATOR OK YES/NO Indicates potential fault
EXH1 OUT ON/OFF Output of EXH1 Terminal
MECH COOL ON 0, 1, or 2
Default
Value
-40° to
140°F
Notes
Indicates if conditions are
favorable for economizing
Indicates if economizer is
actively economizing
Indicates if dedicated 24V
occupied signal is being received
on terminal OCC
Displays actual compressor use
if in HEAT PUMP mode
Indicates if 24V signal is being
received on terminal Y1-I
Displays if controller is
actively calling for mechanical
compressor cooling (24V on
Y1-O)
Indicates if 24V signal is being
received on terminal Y2-I
Displays if controller is actively
calling for Stg. 2 cooling
(24V on Y2-O)
Current outdoor air temp
Current outdoor air humidity
for economizers using temp/
humidity sensor
Current count of actuator cycles
from installation
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 identified, 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 specific
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 specific ALARM(S) information, refer to
Table 7.
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
SYS ALARM
NOTE: This is not a complete list of alarms. Additional alarms
will display depending upon the parameter settings and
configuration and attached equipment.
Actuator cannot reach desired percentage of
opening
If AUX is set to SYS in SETPOINTS menu,
SYS will display upon any registered alarm
NOTE: When using the Bard 8403-067 CO2 controller,
configure the sensor to 2-10VDC output (see CO2
sensor instructions).
TM
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 CO
controller is active at any time the A terminal
2
is energized.
The status of the CO
input can be viewed at any time
2
in the STATUS menu.
Manual 2100-702C
Page 18 of 29
Page 19
Enthalpy Settings
If economizer is enthalpy-based and was shipped with
the temp/humidity sensor, the economizer must be
programmed for the specific enthalpy curve boundary
desired for “free” outdoor cooling. The available
enthalpy boundaries are all subject to specific OA
temperature, OA humidity and OA dew points. If all of
the OA conditions are below the specific 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 specific 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 2100-702C
Page 19 of 29
Page 20
RETURN AIR
SUPPLY AIR
COOLING COIL
EXHAUST AIR
OUTDOOR AIR
CONDENSER AIR
ELIMINATOR
AIR FILTER
MIST
CONDENSER COIL
MIS-3613
MIS-3612
ELIMINATOR
RETURN AIR
OUTDOOR AIR
EXHAUST AIR
MIST
AIR FILTER
SUPPLY AIR
Economizer Sequence of Operation
Condition – Cool/Dry OA Conditions
st
Stage Cooling closes and sends signal to
• 1
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 14).
nd
• 2
• 3
Condition – Warm/Humid OA Conditions
• 1
• 2
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 15).
rd
Stage Cooling (if available) closes and sends a
signal to JADE™ control, which closes the Y2-O
nd
relay to begin 2
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 15).
st
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 16).
nd
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 2
nd
stage mechanical cooling. The
economizer damper will remain closed or in a
minimum ventilation setting depending upon
occupied status (see Figure 16).
FIGURE 14
100% Outside Airflow Path
FIGURE 15
Mixed Airflow Path
Manual 2100-702C
Page 20 of 29
Page 21
FIGURE 16
CONDENSER AIR
AIR FILTER
100% RETURN AIR
COOLING COIL
SUPPLY AIR
DAMPER BLADE
ELIMINATOR
MIST
CONDENSER COIL
MIS-3614
100% Closed Loop Airflow Path
Manual 2100-702C
Page 21 of 29
Page 22
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 2100-702C
Page 22 of 29
Page 23
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 Balance
Climate fan speed simultaneously. If the outdoor
conditions are not acceptable, the Y2 terminal will
energize full load compressor and increase the fan
speed to the rated airflow. When the temperature drops
below the Y2 setpoint, the unit will return to part load
and Balanced Climate fan speed. When the cooling
call is satisfied, the compressor will shut down and the
economizer will move to minimum position (ventilation
setting) and the fan will continue to run at RATED
airflow if A is energized on the low voltage terminal
strip.
TABLE 8
Unit Operation with S (Part Flow), Y and Z (Full Flow) Economizer Options
Call for cooling and ECONOMIZER IS AVAILABLE (due
to outdoor conditions):
Two stage cooling thermostat is required and connector
TM
is disconnected at JADE
controller to enable
Balanced Climate mode (see wiring diagrams on pages
28 and 29).
Unit has a call for ventilation: Damper to Min position
and fan will run at RATED airflow. (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
energize part load compressor and increase the fan
speed to the RATED airflow. When the temperature
drops below the Y2 setpoint, the unit will return to
part load and Balanced Climate fan speed. When the
cooling call is satisfied, the compressor will shut down
and the economizer will move to minimum position
(ventilation setting) and the fan will increase to run
at RATED airflow if A is energized on the low voltage
terminal strip.
Unit
Operation
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
Dehumidify
Dehumidify
BC and B Climate − Balanced Climate
¹ Fan speed is selectable through the blower speed control terminal block. LO (default), MED or HI speeds can be used.
2
Dehumidification operation is disabled when a call for heating or cooling occurs. Unit runs at Balanced Climate speed
during dehumidification operation.
2
2
Occ.
Signal
G Y1 Y2 W1 W2 A D 1 2 3-4-5
Yes X X X X B Climate On Min Pos
No X X X B Climate On Closed
Low Voltage 24VAC Speed Taps
Fan Speed
1
Comp.
Oper.
Damper
Manual 2100-702C
Page 23 of 29
Page 24
Economizer Operation – Balanced Climate Mode
Connector disconnected from JADETM controller (see wiring diagrams on pages 28 and 29)
THERMOSTAT/CONTROL CALLS
FOR 1ST STAGE COOLING
OA CONDITIONS
ABOVE DRYBULB
OR ENTHALPY
CURVE SETPOINTS
MECHANICAL COOLING BEGINS,
FAN OPERATES IN BALANCED CLIMATE SPEED,
ECONOMIZER DAMPER CLOSED OR
MIN. POSITION
IS ADDITIONAL
COOLING REQ’D?
YES
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
COOLING
NO
CONDITIONED
SPACE LOAD IS
PICKED UP BY
MECHANICAL
COOLING
OA CONDITIONS
BELOW DRYBULB
OR ENTHALPY
CURVE SETPOINT
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
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
NO
YES
MECHANICAL COOLING
BEGINS IN BALANCED
CLIMATE SPEED,
ECON DAMPER REMAINS
IS ADDITIONAL
COOLING REQ’D?
NO
OPEN
YES
Manual 2100-702C
Page 24 of 29
THERMOSTAT IS
SATISFIED AND
SYSTEM SHUTS
DOWN
CONDITIONED
SPACE LOAD
IS PICKED UP BY
ECONOMIZER
AND
MECHANICAL
COOL
THERMOSTAT CALLS
FOR 2ND STAGE COOLING,
BRINGS IN RATED
INDOOR FAN SPEED
CONDITIONED SPACE LOAD
IS PICKED UP BY
ECONOMIZER AND
MECHANICAL COOL
THERMOSTAT IS SATISFIED
AND SYSTEM SHUTS DOWN
Page 25
NOTE: MENU
JUMPER MUST
BE SET TO "ON"
TO CHANGE ANY
SETTINGS WITH
THE FRONT BUTTONS.
TO LOCK THE CO2
CONTROLLER MOVE
JUMPER TO "OFF" AFTER
IT HAS BEEN CONFIGURED
FIGURE 17
CO2 Sensor Default and Final Settings
Bard Part #8403-067 CO2 Controller
PRESS UP AND DOWN
ARROWS TO ENTER
CONFIGURATION MODE
USE ARROWS TO SELECT
SETTING. PUSH MIDDLE
BUTTON TO CHANGE.
CONTROLLER WILL
SHOW SET.
JUMPERS MUST BE
POSITIONED AS SHOWN
FOR PROPER OPERATION
Settings Recommended Default
Settings Recommended Default
RON Not Used
RON Not Used
ROF Not Used
ROF Not Used
DSP C CT
DSP C CT
UNI US US
UNI US US
COL 700 0
COL 700 0
COH 1500 2000
COH 1500 2000
TOL Not Used
TOL Not Used
TOH Not Used
TOH Not Used
BAR
BAR
CAL Used forField Calibration
CAL Used forField Calibration
See Instrution with Controller
See Instrution with Controller
For High Altitude Installations
For High Altitude Installations
MIS-4025
Manual 2100-702C
Page 25 of 29
Page 26
GRAPH 1
W/J18 Ventilation Delivery
GRAPH 2
W/J24 Ventilation Delivery
Manual 2100-702C
Page 26 of 29
Page 27
GRAPH 3
W/J30 Ventilation Delivery
GRAPH 4
W/J36 Ventilation Delivery
Manual 2100-702C
Page 27 of 29
Page 28
FIGURE 18
Wiring Diagram − Enthalpy Sensor
BROWN
BLACK
BROWN
1
MAT +
2
MAT -
3
OAT +
4
RED
OAT -
5
S-BUS
6
S-BUS
PLUG
PLUG
GRAY
1
IAQ +
2
IAQ -
3
IAQ24V
4
ACT +
5
ACT -
6
ACT 24V
ECONOMIZER CONTROL
RELAY
48
NC COM
NO
ORANGE
ORANGE
MODULE
6
5
AUX2-I
4
OCC
3
E-GND
2
EXH1
1
AUX1-O
PLUG
PLUG
6
Y2-I
5
Y2-O
4
Y1-I
3
Y1-O
2
C
1
R
3
BROWN/WHITE
BLACK/WHITE
RED/WHITE
12 PIN PLUG
BLUE
BROWN/WHITE
GREEN
RED/YELLOW
GRAY
PURPLE/BLACK
PURPLE
YELLOW/BLACK
YELLOW/WHITE
BLACK/WHITE
RED/WHITE
ORANGE
12 PIN PLUG
MALE
MALE
7
12 PIN PLUG
8
FEMALE
1
RED
3
BLACK
2
BROWN
9
BROWN
8
BLACK
11
RED
12
ORANGE
5
ORANGE
6
CLOSE DAMPER INPUT
11
OCCUPIED SIGNAL INPUT
7
ECON OPEN OUTPUT
10
0-10 VDC CO2 CONTROL INPUT
4
2ND STAGE COOLING INPUT
5
2ND STAGE COOLING OUTPUT
1
1ST STAGE COOLI NG INPUT
2
COMPRESSOR OUTPUT
8
24V COMMON INPUT
6
24V HOT INPUT
9
3
DAMPER MOTOR
1
2
3
4
MIXED AIR
TEMPERATURE
SENSOR
3
OUTSIDE AIR
46
DIRECT PLUG-IN
INTO SIDE OF UNIT
CONTROL PANEL
ENTHALPY
SENSOR
2-STAGE COMPRESSOR
SINGLE STAGE COMPRESSOR
JUMPER DISCONNECTED FOR
BALANCED CLIMATE OPERATION.
SEE ECONOMIZER AND UNIT
INSTALLATION INSTRUCTIONS.
JUMPER MUST BE
DISCONNECTED,AND
PURPLE WIRE NEEDS
CONNECTED TO 2-STAGE
HARNESS WIRE,
(SEE FIGURE *)
Manual 2100-702C
Page 28 of 29
ORANGE
ECONOMIZER CONTROL PANEL
Move this RED/WHITE wire from
COM to NC if jumper is used
between A and G. See pages 13 or
14 for additional information.
4056-250 B
Page 29
FIGURE 19
Wiring Diagram − Temperature Only Sensor
BLACK
BROWN
BROWN
ORANGE
ORANGE
1
MAT +
2
MAT -
3
RED
OAT +
4
OAT -
5
S-BUS
6
S-BUS
PLUG
GRAY
1
IAQ +
2
IAQ -
3
IAQ24V
4
ACT +
5
ACT -
6
ACT 24V
ECONOMIZER CONTROL
RELAY
48
NC
NO
MODULE
BROWN/WHITE
COM
6
5
AUX2-I
4
OCC
3
E-GND
2
EXH1
1
AUX1-O
PLUGPLUG
PLUG
6
Y2-I
5
Y2-O
4
Y1-I
3
Y1-O
2
C
1
R
3
BLACK/WHITE
RED/WHITE
ORANGE
12 PIN PLUG
MALE
8
BLUE
BROWN/WHITE
GREEN
RED/YELLOW
GRAY
PURPLE/BLACK
PURPLE
YELLOW/BLACK
YELLOW/WHITE
BLACK/WHITE
RED/WHITE
ORANGE
12 PIN PLUG
MALE
7
ECONOMIZER CONTROL PANEL
12 PIN PLUG
FEMALE
1
RED
3
BLACK
2
BROWN
9
BROWN
8
BLACK
11
RED
12
ORANGE
5
ORANGE
6
CLOSE DAMPER INPUT
11
OCCUPIED SIGNAL INPUT
7
ECON OPEN OUTPUT
10
0-10 VDC CO2 CONTROL INPUT
4
2ND STAGE COOLING INPUT
5
2ND STAGE COOLING OUTPUT
1
1ST STAGE COOLI NG INPUT
2
COMPRESSOR OUTPUT
8
24V COMMON INPUT
6
24V HOT INPUT
9
3
TEMPERATURE
SINGLE STAGE COMPRESSOR
JUMPER DISCONNECTED FOR
BALANCED CLIMATE OPERATION.
SEE ECONOMIZER AND UNIT
INSTALLATION INSTRUCTIONS.
DAMPER MOTOR
1
2
3
4
MIXED AIR
SENSOR
46
2-STAGE COMPRESSOR
3
OUTSIDE AIR
TEMPERATURE
SENSOR
DIRECT PLUG-IN
INTO SIDE OF UNIT
CONTROL PANEL
JUMPER MUST BE
DISCONNECTED,AND
PURPLE WIRE NEEDS
CONNECTED TO 2-STAGE
HARNESS WIRE,
(SEE FIGURE *)
4056-254 B
Move this RED/WHITE wire from
COM to NC if jumper is used
between A and G. See pages 13 or
14 for additional information.
Manual 2100-702C
Page 29 of 29
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