Viessmann Vitocal 222-A - Page 83

83
Outdoor units, types 221.A04 to A08
A
B C
L
N
O
S
E
K
P
U
VW
D
F
G
H
M
R
T
X
Fig. 66
A
Fan
B
Air intake temperature sensor (T5)
C
Heat exchanger (evaporator)
D
Electronic expansion valve
E
4-way diverter valve
F
Secondary circuit air vent valve
G
Secondary circuit flow temperature sensor
upstream of instantaneous heating water heater
(T1)
H
Evaporator suction gas temperature sensor (T7)
K
Low pressure sensor
L
Condenser
M
Reversible suction gas temperature sensor (T3)
N
Schrader valve, low pressure side
O
Compressor
P
Schrader valve, high pressure side
R
Hot gas temperature sensor (T6)
S
Schrader valve, high pressure side
T
Compressor suction gas temperature sensor (T4)
U
Refrigerant receiver
V
Safety high pressure switch
W
High pressure sensor
X
Refrigerant circuit controller temperature sensor
(T2)
Maintenance
Overview of internal components: Outdoor unit (cont.)
5831412
Maintenance