Heat pump
(cont.)
4. "Runtime compressor" for single-stage heat
pump
5. Compressor hours run ("Runtime") can be scan-
ned with
for every "Load class".
Runtime compressor
Ü
h
Load class
1
Runtime
Select with
Fig. 26
Refrigerant circuit
Note
■
For assignment of refrigerant circuit controllers to
heat pump types: See page 24.
For further information on refrigerant circuit control-
■
lers: See page 183.
Refrigerant circ controller
For heat pumps with an electronic expansion valve
and refrigerant circuit controller [2] or [6].
The following information can be called up:
■
Refrigerant circuit temperature and pressure values
■
Refrigerant circuit operating conditions
1. Service menu:
Press OK +
simultaneously and hold for
å
approx. 4 s.
2. "Diagnosis"
3
4
5
?
230h
[2] / [6]
Load class assignment:
Load class
Hours run at
1
T
Δ
2
25 K <
3
32 K <
4
41 K <
5
T
Δ
T
Differential between evaporation and condensa-
Δ
V/K
tion temperature
3. "Refrigerant circuit"
4. "Refrigerant circ controller"
Notes
■
For some heat pumps, not all symbols and values
shown are displayed.
The symbols on the display are animated if the com-
■
ponents are operational (e.g. pumps).
■
The values shown are examples.
Diagnosis
T
∆
V/K
< 25 K
V/K
T
< 32 K
Δ
V/K
T
< 41 K
Δ
V/K
T
< 50 K
Δ
V/K
50 K
>
V/K
137