Manual 2100-715B
Page
14 of 25
Ventilation Features (Optional)
See ventilation instructions provided with unit for low
voltage wiring.
Alarm Relay Feature (Controls Option)
The alarm relay provides a set of NO (normally open)
and NC (normally closed) pilot duty contacts that
operate when the compressor control module locks out
compressor operation because of a high or low system
refrigerant pressure event.
TABLE 3
CO
2
Controllers
Part Number
Predominate Features
8403-067
Normally Open SPST relay closes-on-rise
24V dual wave length sensor. Default setting
950ppm, adjustable to 0-2000ppm
Default off setting 1000ppm, adjustable to
0-200 ppm can be calibrated
TABLE 4
Thermostat Wire Size
Transformer
VA
FLA
Wire Gauge
Maximum
Distance
In Feet
55
2.3
18 gauge
16 gauge
14 gauge
12 gauge
60
100
160
250
TABLE 2
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-THO
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-THOC
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-THO
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-THOC
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
8403-091
1 stage Cool, 1 stage Heat; Non-Programmable; FEMA use
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
