REMKO KNGcooling module, Installation Instructions Manual

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5 Installation
5.1 Hydraulic connection
General notes
A separate interpretation of nominal flow rate
must be made for every system (see technical
data).
n We recommend installing a buffer tank as a
hydraulic compensator for hydraulic isolation of
the heating/cooling circuit.
Hydraulic isolation is required when:
- different inlet temperatures are to be obtained
- the pressure drop in the heating distribution
system is greater than the max. pressure drop
stated in the technical data
- the use of other heat generators, e.g. com-
bustible burner for solid fuel, solar or bivalent
(dual-fuel) systems
n Perform a pipe-network calculation before
installing the heat pump. After installing the
heat pump, it is necessary to perform a
hydraulic balancing of the heating circuit.
n
The heating/cooling system must be protected
against excessively high and low temperatures.
n
Do not reduce pipe diameters for the inlet and
return flow connections to the cooling module
before connecting a buffer tank.
n Plan for air bleed valves and drain-off taps at
appropriate places.
n Flush the system’s entire pipe network before
connecting the heat pump.
n The heating/cooling system provided by the
customer must be protected to prevent the
temperature falling below the dew point (con-
densation water). The REMKO dew point mon-
itor with corresponding probes can be used for
this.
n Cooling without a REMKO room temperature/
humidity probe is not permitted.
n One or, where necessary, several expansion
vessels must be designed for the entire
hydraulic system.
n The system pressure of the entire pipe network
is to be matched to the hydraulic system and
must be checked when the heat pump is
turned off. Also update the static-pressure form
supplied with the heat pump.
n The dirt trap must be checked during every
maintenance of the system.
n All exposed metallic surfaces must be addition-
ally insulated.
n Cooling mode via the heating circuit requires a
complete vapour density insulation along the
entire length of the pipework.
n All outgoing heating circuits are to be secured
against the ingress of circulating water by
means of check valves.
n Before being placed in service, the system
must be thoroughly flushed. Conduct a seal
test and perform a thorough bleeding of both
the indoor unit and the entire system - repeat-
edly, if necessary, in acc. with DIN standards.
REMKO cooling module
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