Flow (Q)
Pr
essur
e height (H)
33
40
Connecting the heat pump to the heating system
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 filling around the hose must not contain
stones.
Maximum system pressure drop in the heating system
The maximum system pressure drop and the minimum flow that the integrated circulation pump can handle is presented in
the table. If the minimum flow cannot be guaranteed a bypass and an external main pump G1 (P1) should be installed.
Ensure that TRV's cannot close down and restrict the required flow.
Non-inflammable pipe material must
be used when routing the pipes
indoors. When plastic hose is used
indoors this must be protected by 40
mm fire resistant, mineral wool sheet,
EI30.
Connecting the collector hose to the heat pump
It is important that the collector hose has been pressure tested before it
is connected to the heat pump. The hose should be pressure tested to 3-4
bar for a minimum of 1 hour or 6 hours for Compact collectors to ensure
there are no leaks. A ground collector is usually pressurised during the
laying process. Pressure test with air up to 4 bar. Reduce to 2 bar when
refilling. A further leakage test must be performed on the collector hose
before commissioning the heat pump.
Heat pump model
Greenstore 6
Greenstore 7
Greenstore 9
Nominal flow
Maximum flow
Max system pressure drop
0.20 l/s
0.25 l/s
0.31 l/s
0.14 l/s
0.18 l/s
0.22 l/s
36.0 kPa
36.0 kPa
34.0 kPa
The heat pump and collector hose in general
Note
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
800 - 1000mm
800 - 1000mm
200mm
Filling of stone free soil approximately
100mm around the collector hose.
Collector, PEM 40x2.4 PN 6.3
House wall
Collector hose
Insulation from the wall
Example of the collector
through the wall.
(From the side.)
Example of the collector
through the wall.
(Cross section.)
Collector in the ground.