Air-to-water Heat Pump Split Versati
49
SPLIT TYPE
(8) Filter Board (AP3):GRS-CQ12Pd/NaE-M(O), GRS-CQ14Pd/NaE-M(O), GRS-CQ16Pd/NaE-M(O)
X4
X3
X1
X2
X7
X5
X6
No.
Silk Screen
Introduction
1
X1
U line of the power supply for the main unit
2
X2
V line of the power supply for the main unit
3
X3
W line of the power supply for the main unit
4
X4
Ground line of the power supply for the main unit
5
X5
U line output of the filter board (to the drive board)
6
X6
V line output of the filter board (to the drive board )
7
X7
W line output of the filter board (to the drive and main boards)
19.2 Electric Wiring
19.2.1 Wiring principle
Refer to Section 18.4.
