Technical Data; Wiring Connection - ABB -free@home TH-1.1 Product Manual

4 Technical Data

4.1 Technical Data
Designation
Operating Voltage*
Wires
Wireless Transmission Protocol
Ambient Operating Temperature
*WARNING: DO NOT connect device to a voltage above 24 V
4.2

Wiring Connection

Terminal
Rc **
Rh **
C
Y1
Y2
G
W1
W2
ACC
O/B
*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.
Product Manual 2CQA 100 014 B0001 │ 2018-09-28
Conventional Setup
Cooling power, 24 V AC
Heating power, 24 V AC
Common, 24 V (from Rc)
Y1 Cooling (stage 1)
Y2 Cooling (stage 2)
Fan
Heating (stage 1)
Heating (stage 2)
For accessories*, operated by "AUX"
symbol on display
Not used
Value
24 V AC, 60 Hz
AWG18 to AWG22,
Stranded Wires are NOT allowed
free@home, 2.400 - 2.483 GHz, meshed
32°F to 104°F (0°C to 40°C)
Heat Pump Setup
Cooling power, 24 V AC
Heating power, 24 V AC
Common, 24 V (from Rc)
Heat pump compressor (stage 1)
Heat pump compressor (stage 2)
Fan
AUX heating (stage 1)
AUX heating (stage 2)
For accessories*, operated by "AUX"
symbol on display
Reversing valve
Technical Data
│16