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A
S1 configuration on A1 board (VCH models)
a
Black connector
B
Thermostat
b
Green connector
C
Electronic board [A1]
c
White connector
D
Accessories connection
d
Yellow connector
E
YKTOOLN2 connection
e
Red connector
F
RS-485 connection
B1
Suction probe
G
Shielded cable, 10 x 0,22 mm
2
B2
Liquid probe
H
On-site installation. These components are not supplied by the
manufacturer
B3
Discharge probe
I
Cross-section B mm
2
Cu
B4
Outdoor probe
J
Crankcase heater
M1
Compressor
K
Indoor fan motor trip switch
M2
Indoor fan
L
High and low pressure switch
M3
Outdoor fan
M
Outdoor fan motor trip switch
FC
Phase control
N
4-way valve
Wiring diagrams
2
Unit wiring diagrams
2.5
53
Summary of Contents for VCH-25A
Page 4: ...1 Installation manual...
Page 50: ...2 Wiring diagrams...