Technical Data
Product Manual 2CQA 100 014 B0001
│
2018-09-28
│
16
4 Technical Data
4.1
Technical Data
Designation
Value
Operating Voltage*
24 V AC, 60 Hz
Wires
AWG18 to AWG22,
Stranded Wires are NOT allowed
Wireless Transmission Protocol
free@home, 2.400 - 2.483 GHz, meshed
Ambient Operating Temperature
32°F to 104°F (0°C to 40°C)
*
WARNING:
DO NOT connect device to a voltage above 24 V
4.2
Wiring Connection
Terminal
Conventional Setup
Heat Pump Setup
Rc **
Cooling power, 24 V AC
Cooling power, 24 V AC
Rh **
Heating power, 24 V AC
Heating power, 24 V AC
C
Common, 24 V (from Rc)
Common, 24 V (from Rc)
Y1
Y1 Cooling (stage 1)
Heat pump compressor (stage 1)
Y2
Y2 Cooling (stage 2)
Heat pump compressor (stage 2)
G
Fan
Fan
W1
Heating (stage 1)
AUX heating (stage 1)
W2
Heating (stage 2)
AUX heating (stage 2)
ACC
For accessories*, operated by “AUX”
symbol on display
For accessories*, operated by “AUX”
symbol on display
O/B
Not used
Reversing valve
*Typical accessories: humidifier or de-humidifier
**If heating and cooling systems are 24 V AC separately (“2-transformer system”) please remove jumper
on back of ABB Thermostat. See image below.
