Dry Contact & 24 Volt Adaptor
6
No.
Interface
Instruction
4
F1, F2
Fire alarm detection
5
H1, H2
RS485 communication interface,
connecting the indoor unit
6
O/B
4-way valve for heat pumps
7
TR
Supply power for adapter (24VAC)
8
R
Supply power for thermostat (24VAC)
9
TC
Supply power for adapter (Common)
10
C
Supply power for thermostat
(Common)
11
G
Fan/ indoor fan
12
W
Heating/E-heater
13
Y
Cooling/compressor
14
G1
Low fan speed
15
G2
Medium fan speed
16
G3
High fan speed
4.2 Button Instruction
Function instruction for buttons are shown as below:
Table 4.2.1 Function instruction for buttons
No.
Buttons name
Button function
SW1
BACK
Return after parameter setting
SW2
DOWN
Decrease parameter setting
