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4.2.7 Hot gas thermostat in the
refrigeration circuit
The hot gas thermostat shuts down the
heat pump if the temperature in the refri-
geration circuit is too high. If the temperat-
ure in the heat pump's refrigeration circuit
exceeds the maximum temperature, the
hot gas thermostat temporarily shuts down
the heat pump. Following a waiting period,
another attempt is made to start the heat
pump. After three failed start attempts in
succession, a fault message is displayed.
– Max. refrigeration circuit temperature:
130 ℃
– Waiting period: 5 minutes (after the first
occurrence)
– Waiting period: 30 minutes
(after the second and every further oc-
currence)
The fault counter is reset if both of the
following conditions are met:
– Heat requirement without switching off
prematurely
– 60 minutes of uninterrupted operation
4.2.8 Safety cut-out (SCO) in the
heating circuit
If the temperature in the heating circuit of
the internal auxiliary electric heating ex-
ceeds the maximum temperature, the SCO
shuts down the auxiliary electric heating as
a securing measure. Following a waiting
period, another attempt is made to start
the auxiliary electric heating. A fault mes-
sage is displayed that can only be reset by
pressing the Reset button or by switching
the heat pump off and on again.
– Max. heating circuit temperature: 85 ℃
0020213396_00 flexoTHERM Operating instructions
Product description 4
4.3 Serial number
The serial number is located on a plate be-
hind the front flap. The 7th to 16th digits of
the serial number form the article number.
4.4 Product design
1
2
3
1
4
2
3
4
1
Front flap
2
Recessed
handle
3
Control elements
4.5 Opening the front flap
1. Take hold of the recessed handle in
the front flap on the left- or right-hand
side.
2. Pull the recessed handle.
4
Plate showing
the serial num-
ber
9
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