Collector Hose - Worcester GREENSTORE Instruction Manual

The heat pump and collector hose in general

Collector hose

The task of the collector hose is to convey the heat transfer fl uid through the
ground to gain a few degrees of heat. The hose is a thin-walled plastic hose of
type PEM 40 x 2.4 PN 6.3. SDR11.
Installation and backfi lling around the collector hose
Installation of the collector and backfi lling the soil around the collector hose
should follow applicable material and working descriptions and regulations.
It is important that the fi lling material does not contain stones or other sharp
objects that can damage the collector hose.
Use hose pliers, not a saw, when cutting the collector hose. Deburr the end of
the pipe internally and externally. It is important that no dirt or debris enters the
system. Dirt and debris can cause a blockage in the heat pump.
Minimum permitted bending radius
Minimum permitted bend radius is 1 metre. If sharper bends are required an
elbow connector must be used. If the collector hose is damaged by too sharp a
bend, it can be repaired by using a straight coupling.
Maximum length of the collector hose
The maximum length of the collector hose is based on the heat transfer fl uid
pressure drop. A heat transfer fl uid consisting of bioethanol or glycol and water
is recommended.
Heat pump model
Greenstore 6
Greenstore 7
Greenstore 9
Greenstore 11
Maximum length of Collector hose with 2 circuits
collector hose with a in parallel: Maximum length
single circuit (m)
PEM 40x2.4 PN 6.3.
600
500
400
400
per circuit (m)
PEM 40x2.4 PN 6.3.
-
1000
800
800
10
Hose pliers
Note
The maximum collector hose lengths
for heat pump models are provided in
the table.
In situations where the length of the
collector hose needs to exceed the
permitted value, you can connect the
hoses in parallel.