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Dimplex ZKP 65F-25 Manual

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1.3
Installation of the pipe connections:
ATTENTION!
When connecting the pipe system to the heat exchanger, ensure that it is
not subjected to stress or strain by the pipe system! Clean the pipework
before installation on the heat exchanger!
Heavy pipework must be supported to prevent strong forces from
being applied on the heat exchanger.
Use flexible connections to prevent vibrations on the heat ex-
changer and to compensate for the expansion of the pipes
caused by temperature fluctuations on the heat exchanger (ten-
sion-free lengthways installation).
NOTE
To guarantee adequate venting, the bleeder valves should be mounted in
the highest position in the flow direction of the medium (preferably on a
pressure vessel). Isolating valves can be used on all connections of the
heat exchanger to make them easier to open when necessary!
Threaded pipe connections:
During installation, ensure that these connections do not turn
while pipe connectors or flanges are being mounted.
Turning the threaded pipe connections could damage the seal in
the heat exchanger, which acts as a seal against the rear side of
the pipe connection!
Flange connections:
If the connection is lined with rubber, the lining also acts as a
flange seal. The connection flange should be connected directly
to the end plate using the designated tapped holes. The screws
should be tightened evenly - do not tighten excessively, as this
could overwind the threads cut in to the frame plate.
If loose support flanges are mounted on the heat exchanger, a
suitable seal is required for sealing the flange.
Commissioning:
ATTENTION!
Start the cold circuit first, followed by the hot circuit.
Purge the system completely by closing the isolating valves be-
tween the pump and the heat exchanger (if a valve is installed in
the return of the heat exchanger, open it).
Then start the brine circulating pump and open the valves in the
flow to the heat exchanger gradually.
If necessary, purge again and repeat the above steps for the sec-
ondary circuit if this is also a closed circuit.
1.3 Connecting the heat generator and brine (intermediate) circuit pump:
Fig. 1.3: Connecting the heat generator and brine (intermediate) circuit pump
SI 50TU
WSI 65TU
SI 75TU
WSI 90TU
SI 90TU
WSI 110TU
Heat generator circuit pump
M 16:
Magna Geo 32-
100VDC Magna3 40-80F Magna3 65-80F
Intermediate circuit pump
M11: Magna3 65-80F Magna3 65-100F Magna3 65-100F
Well pump
M11: To be provided on-site
Domestic hot water preparation
Heating circuit(s)
… 14 …


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