Worcester GREENSTORE Instruction Manual page 11

Outline drawings for the collector hose in the ground and through a wall
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.
Collector in the ground
800-1000 mm
Example of the collector through the wall
(from the side)
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.
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.
200 mm
House wall
Collector hose
Insulation
11
The heat pump and collector hose in general
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.
Example of the collector through the wall
(cross section)
Note
Non-combustable pipe material must
be used when routing the pipes
indoors.