The Heat Pump And Collector Hose In General; Transporting The Heat Pump; Positioning The Heat Pump; Maximum Working Temperatures - Bosch EHP 6-11 LW User And Installation Manual

The heat pump and collector hose in general

The heat pump and collector hose in general

Transporting the heat pump

The heat pump should always be transported and stored in an upright position. Otherwise the suspension fi ttings inside
the compressor can be damaged. If the heat pump must be tilted during entry to the installation site, this should be done
for as short a time as possible. The outer cover plates should be removed to avoid damage, if the heat pump is moved
without using the supplied pallet.
The heat pump must not be stored at temperatures below -10ºC.

Positioning the heat pump

It is important that the heat pump stands on a fl at surface as it contains sensitive parts. Adjust the rubber feet so the heat
pump does not lean.
The temperature surrounding the heat pump must be between 0ºC and 35ºC.
The installer should take sound propagation into consideration when positioning the heat pump.
Make sure there is a fl oor drain in the room where the heat pump is installed. The fl oor drain ensures any water is easily
transported away if leakage should occur.

Maximum working temperatures

The heat pump can work at a maximum return water temperature of approximately 57ºC. If the temperature rises above
this value the heat pump will stop for reasons of safety.
The maximum outgoing temperature to the heating system is around 65°C. However, even higher temperature can be
attained with the help of the electric cassette.

Minimum working temperatures

The heat pump is from factory preset to minimum temperature of heat transfer fl uid (collector) ±0°C inlet and -2°C outlet.
If anti-freeze liquid with a freezing point of -15°C is used, the heat pump can operate at outdoor temperatures down to -5°C.
The preset values must be changed during commissioning. At this level the heating factor is (depending on model) appr.
3.3 - 3.5 at 35°C heat transfer fl uid out and 2.4 - 2.6 at 50°C heat transfer fl uid out.
Fit the particle fi lter
The task of the particle fi lter is to fi lter out dirt before it can enter the heat pump. Accordingly, the supplied particle fi lters
should always be fi tted on the incoming pipes on both the hot and cold sides. The fi lters should be fi tted as close to the
heat pump as possible and placed horizontally.
Two particle fi lters are supplied with the LWM model. These are to be fi tted on the outside of the heat pump. On the LW
model the particle fi lter for the hot side is already fi tted inside the heat pump. The supplied fi lter is to be fi tted on the cold
side, outside of the heat pump.
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