Technical information
Vent 402 – 6721815546 (2021/03)
32
Fig. 43 Supply air heating, heating circuit without mixing valve
[1] Thermostatic valve
[2] Bypass-stop ( Fig. 45)
When supply air heating is connected, the bypass must be switched off.
Either with shut-off washers (in delivery) or valves. Mount the shut-off
washer before filling the system. Also attach the supplied sticker. When
filling the system, at least one thermostatic valve in teh heating system
must be fully open.
Requirements for the thermostatic valve ([1], Bild 43):
Remote air sensor to be fitted into the supply air duct.
Maximum temperature range 5-30 °C.
kvs value: 1,2 - 1,6 m
3
/h.
An electric pre-heater in the supply air channel is recommended for
comfort. Electric pre-heater are mandatory if the heat pumps electric
heater is limited to 1 kW.
Table 23 Maximum distance between heat pump and supply air unit
Fig. 44 Sticker
0010028306-005
2
1
Pipe dimension Ø 15 mm Ø 22 mm
Distance
1)
4 m 20 m
1) Pipe length = distance x2
0010030214-001
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