17
Levelling the heat pump
1. 4x
Fig. 9
Hydraulic connections
Connecting the primary circuit
!
Please note
The heat transfer medium can cause corrosion
damage to on-site lines and components.
The components and lines used must be resist-
ant to the heat transfer medium. Never use zinc-
plated/galvanised pipes.
1.
Equip the primary circuit with an expansion vessel
and safety valve, in accordance with DIN 4757.
Note
■
The expansion vessel must be approved to
DIN 4807. The diaphragms of the expansion ves-
sel and safety valve must be suitable for the heat
transfer medium.
■
The blow down and drain pipes should exit into a
container. This container must be able to hold
the maximum possible expansion volume of the
heat transfer medium.
2.
Ensure adequate thermal and anti-vibration insula-
tion where pipes penetrate walls.
3.
Connect the primary lines to the pipes of the
hydraulic connection set: See diagram in chapter
"Fitting the primary circuit/secondary circuit con-
nection set".
!
Please note
Mechanically loaded hydraulic connections
lead to leaks, vibrations and appliance dam-
age.
Connect on-site lines so that they are free of
load and torque stress.
4.
Insulate pipes inside the building to prevent heat
and vapour diffusion.
Installation sequence
Siting the heat pump
(cont.)
6153640
Installation
