Vaillant geoTHERM SERIES Service Manual download pdf (Page 11)

11Operating Manual geoTHERM exclusive VWS 0020071929_00

Freezing protection function

The outlet temperature of the heat source is constantly

measured. If the heat source outlet temperature falls

below a specific value, the compressor temporarily

shuts off with the error message 20 or 21. If these er-

rors occur three times in a row there is a fault-induced

shutdown.

For the geoTHERM VWS heat pumps you can set the

value (Default setting -10 °C) for the freezing protection

in the installation assistant A4.

Cooling

In cooling mode the heat pump performs a cooling func-

tion.

You can use the cooling function to set the number of

consecutive days (0 - 99) on which you wish the cooling

system to be in operation.

4.4 Design of the geoTHERM exclusive heat

pump

A domestic hot water cylinder with a capacity of 175 li-

tres is integrated into the Vaillant geoTHERM exclusive

heat pump. The heat pump is available in three versions,

which differ mainly in their output.

Type name Heating output (kW)

Brine water heat pumps (S0/W35)

VWS 63/2 230V 6.0

VWS 83/2 230V 8,1

VWS 103/2 230V 10.5

Table 4.1 Type summary

Fig. 4.3 Front view

Key to Fig. 4.3

1 Sticker with the heat pump type designation

2 Operating console

Equipment and functional description 4

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 31 32

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Vaillant geoTHERM SERIES Service Manual Page 11