41
3.
Drain the DHW cylinder from the drain valve in the
cold water supply.
Overview of internal components
Fig. 31
A
Liquid separator
B
Non-return valve
C
Diverter valve, defrosting
D
Filter dryer
E
Schrader valve, high pressure side
F
Evaporator temperature sensor
G
Thermostatic expansion valve
H
Schrader valve, low pressure side
K
Fan
L
Air intake temperature sensor
M
Evaporator
N
Safety high pressure switch
O
Condensate pan (EPP base with integral drip tray)
P
Compressor
Note
For cylinder temperature sensor positioning, see
"Overview of connections" on page 9.
Checking the temperature sensors
Sensor
Test element
Top cylinder temperature sensor (L or XL profile)
NTC 50 k
Ω
Cylinder temperature sensor (external heat generator, only for type T0S-ze)
NTC 10 k
Ω
Bottom cylinder temperature sensor
NTC 50 k
Ω
Air intake temperature sensor
NTC 50 k
Ω
Evaporator temperature sensor
NTC 50 k
Ω
Maintenance
Maintenance
(cont.)
6136003
Maintenance