Manual 2100-707D
Page
18 of 39
FIGURE 8
Programmable Thermostat Connections
Thermostat
W1/E
A
YO/D
L
O/B
Y2
Y1
R
G
C
W2
Bard #8403-060
6
10
12
11
9
4
12-Pin
Vent Plug
2
3
5
7
CO2 OUT
Optional CO2 Controller
Bard Part #8403-067
6
5
4
3
2
1
TEMP-OUT
24VAC
W3
6
5
4
2
1
R
Unit Low
Voltage
Term. Strip
W2
C
G
RT
Y1
Y2
B/W1
L
D
A
3
mode.
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 - see vent instruction manuals)
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
Wire not needed below 15KW.
2
Wire required for dehumidification models only.
1
Do not add these wires if setting up for modulating control. See note 5.
Install jumper for 1 stage electric heat on units with less than 15KW
9 Factory installed jumper. Remove jumper to activate Balanced Climate
™
A 2-stage thermostat is recommended for Balanced Climate mode.
W1/E
SC
SC
SC
Completestat
Model #CS9B-THOA or
Model #CS9BE-THOA
W2
COM
G
24V
Y1
Y2
O/B
L
D
A
GND
MIS-3974
ALL VENT OPTIONS PLUG IN HERE
2
3
3
1
6
B
4
5
7
If not equipped with a ventilation option to plug in, a jumper plug must be installed.
4
2
8
9
TABLE 6
Wall Thermostats
Part Number
Predominate Features
8403-060
(1120-445)
3 stage Cool; 3 stage Heat; Electronic Programmable/Non-Programmable; HP or Conventional; Auto or Manual
changeover; Dehumidification Output
CS9B-THOA
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
Humidity Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible
CS9B-THOCA
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
Humidity Sensor w/ dehumidification; CO
2
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible
CS9BE-THOA
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover; Humidity
Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible; Ethernet-compatible
CS9BE-THOCA
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
Humidity Sensor w/dehumidification; CO
2
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible;
Ethernet-compatible
8403-089
(T4 Pro)
1 stage Cool, 1 stage Heat – Heat Pump; 1 stage Cool, 1 stage Heat – Conventional; Programmable/Non-
Programmable Electronic; Auto or Manual changeover
8403-090
(T6 Pro)
2 stage Cool, 3 stage Heat – Heat Pump; 2 stage Cool, 2 stage Heat – Conventional; Programmable/Non-
Programmable Electronic; Auto or Manual changeover
8403-092
(T6 Pro Wi-Fi)
2 stage Cool, 3 stage Heat – Heat Pump; 2 stage Cool, 2 stage Heat – Conventional; Programmable/Non-
Programmable Electronic; Auto or Manual changeover; Wi-Fi
