Free cooling
The installation can be supplemented with fan convectors,
for example, in order to allow connections for free cooling
(PCS 44).
႑
Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
႑
Where the cooling demand is high, fan convectors
with drip trays and drain connection are needed.
႑
The brine system must be supplied with a pressure
expansion vessel (CM3). If there is a level vessel (CM2)
this should be replaced.
P
Fläktkonvektor
3
2
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Under floor heating systems
The external circulation pump is dimensioned for the
under floor heating system’s demand.
If the climate system volume is too small for the heat
pump output, the underfloor heating system can be
supplemented with a buffer vessel, for example NIBE
UKV.
T
UKV
Two or more climate systems
When more than one climate system, with a lower tem-
perature, is to be heated up, the following connection
can be used. The shunt valve lowers the temperature to,
for example, the under floor heating system.
The ECS 40/ECS 41 accessory is required for this connec-
tion.
T
Ground water system
An intermediate heat exchanger is used to protect the
heat pump's exchanger from dirt. The water is released
into a buried filtration unit or a drilled well. See page 23
for more information about connecting a ground water
pump.
15Chapter 4 | Pipe connectionsNIBE™ F1145
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