Buffer vessel
If the climate system volume is too small for the heat
pump output, the radiator system can be supplemented
with a buffer vessel, for example NIBE UKV.
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 29
for more information about connecting a ground water
pump.
If this docking alternative is used, "min. brine out" in
menu 5.1.7 "br pmp al set." must be changed to a suit-
able value to prevent freezing in the heat exchanger.
Ventilation recovery
The installation can be supplemented with the exhaust
air module FLM to enable ventilation recovery.
■
Pipes and other cold surfaces must be insulated with
diffusion-proof material to prevent condensation.
■
The brine system must be supplied with a pressure
expansion vessel (CM3). If there is a level vessel (CM2)
this should be replaced.
Extract air
Ø 160
Exhaust air
Ø 160
NIBE F1155Chapter 4 | Pipe connections18