Vaillant geoTHERM SERIES Instalační manuál stáhnout pdf (Strana 59)

59Installation instructions geoTHERM VWS/VWW 0020057444_01

Display shown Description Factory setting

Menu D: Perform diagnostics 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.

diagnosis

refrigerant circuit

Test >no

Comp High Pressure 11.9 bar

T outlet compresor 66 °C

Comp. low pressure 2.3 bar

T inlet compressor 0 °C

Test: no/off/heating/hot water/cooling

. Set the

operating mode for the heat pump in order to test

its behaviour.

Comp. high pressure: Display of coolant pressure

Compressor output.

T outlet compressor (compressor output, high pres-

sure): Display of temperature sensor T1.

Comp. low pressure:Display of coolant pressure

Compressor input.

T inlet compressor (compressor input, intake side):

Display of temperature sensor T2.

—

diagnosis

refrigerant circuit

overheat 4 K

Subcooling 10 K

Temp TEV inlet 10 °C

Superheating of the coolant calculated from T2

and

low pressure sensor. Only displayed when the com-

pressor is operating.

Subcooling of the coolant calculated from T4

and

high pressure sensor. Only displayed when the com-

pressor is operating.

Temp TEV inlet: Temperature at the inlet of the

thermal expansion valve

—

diagnosis

Central Heating

Current flow temp. 27 °C

Current return temp 24 °C

CH pump Off

CH pressure 1.2 bar

Auxiliary heater Off

Current flow temperature T6.

Current return temperature T5.

Status of CH pump: ON/OFF

CH pressure (heating circuit pressure sensor).

Status of auxiliary heating: ON/OFF

—

diagnosis

Heat Source

Brine pump On

T Return Source 10 °C

T outlet Evaporator 9 °C

Brine pressure 1.5 bar

Status of brine pump: ON/OFF

T return source: Temperature of the heat source,

T3.

T outlet evaporator: Heat source temperature at

the outlet of the heat pump, T8.

VWS only:

Brine pressure (Pressure sensor for heat source cir-

cuit; brine pressure)

—

Table 8.4 Parameters that can be set in the Code level (cont.)

Cooling mode is only possible when using the VWZ NC 14/17 ac-

cessory, and only for VWS 14 and VWS 17 heat pumps.

see Figs. 1 and 2 in the appendix

Controller 8

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 91 92

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