AIR-TO-WATER HEAT PUMP INSTALLATION
99
12
1110
7
8
9
3 way value 1 3 way value 2
OFF
ON
N
OFF
ON
N
• 3way valve should select water tank loop when electric power is supplied to wire (OFF) and wire (N).
• 3way valve should select under floor loop when electric power is supplied to wire (ON) and wire (N).
(OFF) : Line signal (Water tank heating) from PCB to 3way valve
(ON) : Line signal (Under floor heating) from PCB to 3way valve
(N) : Neutral signal from PCB to 3way valve
2.3.9 Gate-controller
If there is gate control function, pull out the leading wire 50 on terminal board（XT2）
between19 and 20 and then connect the Gate-controller
Installation Guide follow as:
1920
Gate-controller
GREE does not supply
this section
1920
50
XT2
2.3.10 Remote Air Temperature Sensor
Front side
Back side
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