Vaillant geotherm exclusive Installation Instructions Manual page 64

8 Controller
Display shown
Menu D: Perform diagnostics
diagnosis
refrigerant circuit
Test
Comp High Pressure
T outlet compressor
Comp. low pressure
T inlet compressor
diagnosis
refrigerant circuit
overheat
Subcooling
Temp TEV inlet
diagnosis
Central Heating
Current flow temp.
Current return temp
CH pump
CH pressure
Auxiliary heater
diagnosis
Heat Source
Brine pump
T Return Source
T outlet Evaporator
Brine pressure
Table 8.4 Parameters that can be set in the Code level (cont.)
*
see Figs. 1 and 2 in the appendix
64
Description
In Menus D1 to D5 you can operate and test the heat
pump in diagnostic mode.
The diagnostic menus cannot be exited with any set-
ting apart from "Test = no" (Menu D1). An auto reset
occurs 15 minutes after the last button is actuated.
In the diagnostic mode, the pre-, minimum and
run-on times of the compressor, pumps and other
components are not heeded!
Malfunctions can occur if the diagnostic mode is fre-
quently turned on and off.
Test: no/off/heating mode/hot water/cooling. Set
D1
the operating mode for the heat pump in order to
test its behaviour.
>no
Comp. high pressure: Display of coolant pressure
11.9 bar
Compressor output.
66°C
T outlet compressor (compressor output, high pres-
2.3 bar
sure): Display of temperature sensor T1.
0°C
Comp. low pressure: Display of coolant pressure
Compressor input.
T inlet compressor (compressor input, intake side):
Display of temperature sensor T2.
Superheating of the coolant calculated from T2
D2
low pressure sensor. Only displayed when the com-
pressor is operating.
4K
Subcooling of the coolant calculated from T4
10K
high pressure sensor. Only displayed when the com-
10°C
pressor is operating.
Temp TEV inlet: Temperature at the inlet of the
thermal expansion valve.
Current flow temperature T6.
D3
Current return temperature T5.
Status of CH pump: ON/OFF
27°C
CH pressure (heating circuit pressure sensor).
24°C
Status of auxiliary heating: ON/OFF
Off
1.2bar
Off
Status of brine pump: ON/OFF
D4
T return source: Temperature of the heat source,
*
T3.
On
T outlet evaporator: Heat source temperature at
10°C
the outlet of the heat pump, T8.
9°C
VWS only:
1.5 bar
Brine pressure (Pressure sensor for heat source cir-
cuit; brine pressure)
*
*
*
*
*
*
Installation instructions for geoTHERM exclusive VWS 0020051614_00
Factory setting
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