Nibe UKV 500 User's And Installer's Manual page 20

Volume and flow equaliser, 2-pipe, low temperature, unbalanced and low flow
A UKV 500 is installed as a volume and flow increaser in those cases where the system volume in the climate
system is below the minimum recommended volume for the heat pump and/or the flow is restricted without
control.
Volume and flow equaliser, 3-pipe, low temperature, unbalanced flow, max. two compressors
A UKV 500 is installed as a volume and flow increaser in those cases where the system volume in the climate
system is below the minimum recommended volume for the heat pump and/or the flow is restricted without
control.
Volume increase as well as reduction of heat spikes
A UKV 500 is installed as a volume increaser in those cases where the system volume in the climate system is
below the minimum recommended volume for the heat pump.
20 UKV 500 | GB