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provided for the DDC controls option that indicates the
indoor blower assembly needs to be serviced.
Compressor Current Sensor
The compressor current sensor indicates when the
compressor is operational by measuring amp draw. It is
located inside the unit control panel. Relay contacts (NO)
are provided to indicate the compressor is not operating
See Table 4 for low voltage connections for DDC control.
TABLE 4
Low Voltage Connections for DDC Control
Standard Units
Fan Only
Energize G
1st Stage
Cooling Mode/
Energize Y1, G
Balanced Climate
Energize Y2 to
overide Balanced
2nd Stage
Climate mode
Cooling Mode
when Y1-Y2
jumper is
removed
1st Stage Heating
Energize B/W1
2nd Stage Heating
Energize B/W1, W2
(if employed)
Ventilation
Energize A
Dehumidification
Energize D
(if employed)
Part Number
8403-060
3 stage Cool; 3 stage Heat; Electronic Programmable/Non-Programmable; HP or Conventional; Auto or Manual
(1120-445)
changeover; Dehumidification Output
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
CS9B-THOA
Humidity Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
CS9B-THOCA
Humidity Sensor w/ dehumidification; CO
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover; Humidity
CS9BE-THOA
Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible; Ethernet-compatible
3 stage Cool, 3 stage Heat; Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover;
CS9BE-THOCA
Humidity Sensor w/dehumidification; CO
Ethernet-compatible
8403-089
1 stage Cool, 1 stage Heat – Heat Pump; 1 stage Cool, 1 stage Heat – Conventional; Programmable/Non-
(T4 Pro)
Programmable Electronic; Auto or Manual changeover
8403-090
2 stage Cool, 3 stage Heat – Heat Pump; 2 stage Cool, 2 stage Heat – Conventional; Programmable/Non-
(T6 Pro)
Programmable Electronic; Auto or Manual changeover
8403-091
1 stage Cool, 1 stage Heat; Non-Programmable; FEMA use
8403-092
2 stage Cool, 3 stage Heat – Heat Pump; 2 stage Cool, 2 stage Heat – Conventional; Programmable/Non-
(T6 Pro Wi-Fi)
Programmable Electronic; Auto or Manual changeover; Wi-Fi
Manual 2100-689H
Page
18 of 42
(H200-10-21-10)
Units w/
Part Number
Economizers
Energize G
Energize Y1, G
Energize Y1, Y2, G
Energize B/W1
Energize B/W1, W2
Energize A
Energize D
TABLE 8
Wall Thermostats
Predominate Features
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible
2
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible;
2
TABLE 5
Humidity Controls
Part Number
8403-038
SPDT switching, pilot duty 50VA @ 24V;
(H600A1014)
Humidity range 20-80% RH
Electronic dehumidstat SPST closes-
8403-047
on-rise; Humidity range 10-90% with
adjustable stops
TABLE 6
CO
Controllers
2
Predominate Features
CO
ventilation control with digital display.
2
8403-056
Normally Open SPST (Default: Close at
800ppm)
Normally Open SPST relay closes-on-rise
24V dual wave length sensor. Default setting
8403-096
950ppm, adjustable to 0-2000ppm
Default off setting 1000ppm, adjustable to
0-200 ppm can be calibrated
TABLE 7
Thermostat Wire Size
Transformer
FLA
VA
55
2.3
Predominate Features
Maximum
Wire Gauge
Distance
In Feet
18 gauge
60
16 gauge
100
14 gauge
160
12 gauge
250
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Troubleshooting
