Freeze Protection Thermostat; Wall Thermostats; Humidity Controls; Co 2 Controllers - Bard Q-TEC Q A4D Series Installation Instructions Manual

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.
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
8403-095 1 stage Cool, 2 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
TABLE 2

Humidity Controls

Part Number
8403-038 SPDT switching, pilot duty 50VA @ 24V;
(H600A1014) Humidity range 20-80% RH
Electronic dehumidistat SPST closes-
8403-047
on-rise; Humidity range 10-90% with
(H200-10-21-10)
adjustable stops
TABLE 3
CO Controllers
2
Part Number Predominate Features
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

Wall Thermostats

2
Predominate Features

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.
TABLE 1
Predominate Features
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible
2
Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible;
Transformer
VA
55
TABLE 4

Thermostat Wire Size

FLA Wire Gauge
18 gauge
16 gauge
2.3
14 gauge
12 gauge
Manual 2100-752C
Page
Maximum
Distance
In Feet
60
100
160
250
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