Manual 2100-752B
Page
22 of 49
high side system pressure. Operation of the LAC occurs
as outdoor temperatures drop below 60ºF. LAC operation
cycles the condenser fan on/off based on outdoor
temperature.
TABLE 2
Humidity Controls
Part Number
Predominate Features
8403-038
(H600A1014)
SPDT switching, pilot duty 50VA @ 24V;
Humidity range 20-80% RH
8403-047
(H200-10-21-10)
Electronic dehumidistat SPST closes-
on-rise; Humidity range 10-90% with
adjustable stops
TABLE 3
CO
2
Controllers
Part Number
Predominate Features
8403-096
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 1
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
8403-095
(T4 Pro)
1 stage Cool, 2 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
Freeze Protection Thermostat
An evaporator freeze protection thermostat is supplied
with all units. The freeze thermostat cuts out compressor
operation if the evaporator begins to freeze up.
