Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 87

Overview of internal components: Outdoor unit
Outdoor unit, types 221.C04 to C08
A
Fig. 73
Fan
A
Air intake temperature sensor (T5)
B
Heat exchanger (evaporator)
C
Electronic expansion valve
D
4-way diverter valve
E
High pressure sensor
F
Evaporator suction gas temperature sensor (T7)
G
Low pressure sensor
H
Safety high pressure switch
K
B C
S
(cont.)
Schrader valve, high pressure side
L
Compressor
M
Hot gas temperature sensor (T6)
N
Compressor suction gas temperature sensor (T4)
O
Refrigerant receiver
P
Schrader valve, low pressure side
R
Refrigerant circuit controller temperature sensor
S
(T2)
Maintenance
D
E
F
G
H
K
L
M
N
O
P
R
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