Installer manual - nibe.com

26
Commissioning without heat pump
The indoor module can be run without heat pump, as
only an electric boiler, to produce heat and hot water,
for example before the heat pump is installed.
Connect the pipe for docking in from the heat pump
(XL8) with the pipe out from the heat pump (XL9).
Enter menu 5.2.4 System settings and deactivate the heat
pump.
NOTE
Select operating mode auto or manual when
the indoor module is to run with the heat pump.
Pump speed
Both the circulation pumps in VVM 500 are frequency
controlled and set themselves using control and external
heating requirement. In the menu there are two operating
modes for the circulation pumps, continuous and auto.
If auto is selected the circulation pumps are controlled
automatically by heating and hot water demands.
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Chapter 6 | Commissioning and adjusting
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Post-adjustment, venting
Air is initially released from the hot water and venting
may be necessary. If gurgling sounds can be heard from
the climate system, the entire system will require additional
venting. Vent the installation through the venting valves
(QM20). When venting, VVM 500 must be off.
NIBE VVM 500