Wiring diagrams
G
Y2
O/B
Y1
G
X1
B
R
W
O/B
Y1
X1
B
R
X2
Y2
AL
G
F
E
1
2
L1
L2
L3
N
2
4
6
U1
V1
W1
D
C
B
A
1.
Power connection
2.
Thermostat connection
A.
Main power supply (400V / 3 / 50 + N)
B.
Outdoor unit
C.
Contactor
D.
Indoor fan motor (star connection)
E.
Outdoor unit terminal strip (VCH 20A to 90A)
F.
DPC-1 thermostat
G.
10-pin shielded communications cable x 0.22 mm
2
Installation manual
1
Instructions for installation and connection of the unit 1.10
39
Summary of Contents for VCH-25A
Page 4: ...1 Installation manual...
Page 50: ...2 Wiring diagrams...