Adapting the appliance to the heating system
Installation instructions geoTHERM 0020051574_04
83
9
9.7.2 Menu
D:
Carrying out diagnoses
Display shown
Description
Factory setting
Menu D: Perform diagnostics
b
Caution:
Risk of damage to heat pump com-
ponents.
In diagnosis mode, internal safety
equipment and settings are disabled.
Frequent switching on and off can lead
to compressor damage.
>
As far as possible, do not switch
diagnosis mode on and off repeat-
edly in succession.
In Menus D1 to D5 you can operate and test the heat
pump in diagnostic mode.
For each setting, it is not possible to exit the diagno-
sis menus, except "Test" = "no" (menu D1). The sys-
tem is automatically reset 15 minutes after the last
keypress.
In the diagnostic mode, the pre-, minimum and
run-on times of the compressor, pumps and other
components are not heeded!
Diagnosis
D1
Coolant circuit
Test
>no
Comp high pressure
11.9 bar
T outlet compressor
66 °C
Comp Low Pressure
2.3 bar
T inlet compressor
0 °C
Test:
no/off/heating/hot water. Setting the operation
mode for the heat pump in order to test the per-
formance of the heat pump.
Comp High Pressure:
Display for compressor outlet
refrigerant pressure
T outlet compressor:
(compressor outlet, high pres-
sure): Display of temperature sensor T1.*
Comp Low Pressure:
Display for compressor inlet
refrigerant pressure.
T inlet compressor:
(compressor inlet, intake side):
Display of temperature sensor T2.*
—
9.7 Menu D: Carrying out diagnoses*
* see Figs. 1 and 2 in the appendix
