
Connecting air/water
heat pump
You can find a list of compatible air/water heat pumps
in section "Outdoor modules".
VVM 500 is not equipped with shut off valves; these
must be installed outside the indoor module to facilitate
any future servicing.
Connection during use
without heat pump
Connect the pipe for docking in from the heat pump
(XL8) with the pipe out to the heat pump XL9.
Heating medium side
CONNECTING THE CLIMATE SYSTEM
A climate system is a system that regulates indoor
comfort with the help of the control system in VVM 500
and for example radiators, underfloor heating/cooling,
fan convectors etc.
• Install expansion vessel (CM1) and pressure gauge
(BP5) in connection XL30.
• Install the safety valve as illustrated. Recommended
opening pressure is 0.25 MPa (2.5 bar). For information
about max opening pressure, see technical specifica-
tions.
• Install shut off valves (installed as close to VVM 500
as possible.
• When connecting to a system with thermostats on all
radiators (or underfloor heating coils), either a bypass
valve must be fitted or some of the thermostats must
be removed to ensure there is sufficient flow.
Cold and hot water
The settings for hot water are made in menu 5.1.1.
CONNECTING COLD AND HOT WATER
Install as follows:
• shut-off valve
• non-return valve
• pressure relief valve
The safety valve must have a maximum 1.0 MPa (10.0
bar) opening pressure and be installed on the incoming
domestic water line as shown.
• mixing valve
A mixer valve must also be installed, if the factory
setting for hot water is changed. National regulations
must be observed.
Installation alternative
VVM 500 can be installed in several different ways,
some of which are shown below.
Further option information is available at nibe.eu and in
the respective assembly instructions for the accessories
used. See page 63 for a list of the accessories that can
be used with VVM 500.
COMPATIBLE NIBE AIR/WATER HEAT PUMPS
Compatible NIBE air/water heat pump must be equipped
with a control board with a display with the minimum
software version indicated in the following list. The
version of the control board is displayed in the heat
pump’s display (if applicable) at start-up.
Software versionProduct
118F2020
55F2025
55F2026
all versionsF2030
all versionsF2040
NIBE VVM 500Chapter 4 | Pipe connections18