Viessmann Vitocal 200-G Series Installation And Service Instructions Manual page 70

Maintenance
Overview of electrical components
Phase monitor
N
Switching module for instantaneous heating water
O
heater
230 V appliances
F
E
D
C
B
A
Fig. 50
EEV PCB (refrigerant circuit controller)
A
Full wave soft starter
B
C Run capacitor 230 V~
Main PCB (MB 761)
D
Controller and sensor PCB (CU 401)
E
Luster terminals: Connections N and
F
G Strain relief fittings
Luster terminals: Message and safety connections
H
70
(cont.)
Mains terminals for instantaneous heating water
K
heater (left) and compressor (right)
Heat pump control unit power supply
L
Expansion PCB (SA 135) on main PCB
M
Contactor and thermal relay for compressor
N
Switching module for instantaneous heating water
O
heater
G
H
K
L
M
N
O