Bosch 7 KW Instruction Manual download pdf (Page 11)

Outline drawings for the collector hose in the ground and through a wall

Connecting the collector hose to the heat pump

It is important that the collector hose has been leak tested before it is

connected to the heat pump. The hose should be tested to 3-4 bar for a

minimum of 1 hour to ensure there are no leaks. The leak test can be

performed using an air compressor. The collector is usually pressurised

during the laying process.

House wall

Collector hose

Insulation

Example of the collector through the wall

(from the side)

Example of the collector through the wall

(cross section)

Collector in the ground

800-1000 mm

Filling of sand or stone free soil

approximately 100 mm around the

collector hose.

Collector, PEM 40 x 2.4 PN 6.3.

200 mm

The heat pump and collector hose in general

Note

Non-combustable pipe material must

be used when routing the pipes

indoors.

The drawings below show how to run the collector hose in the ground and

through a wall. The soil ﬁ lling around the hose must not contain stones.

Insulation of pipework

All collector pipework should be insulated a minimum of 2 metres from the

property. Pipework should also be insulated where the ﬂ ow and return are

closer than 800 mm to each other.

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Bosch 7 KW Instruction Manual Page 11