Installation alternative
VVM 225 can be connected to extra water heater.
Further option information is available at nibe.eu and in
the respective assembly instructions for the accessories
used. See page 65 for the list of the accessories that
can be used with VVM 225.
Extra hot water heaters
The indoor module can be supplemented with an extra
water heater, if a large bath tub or other significant
consumer of hot water is installed. A mixer valve is then
installed on the outgoing hot water from the water
heater.
Water heater with immersion heater
If it is possible to use a water heater with an immersion
heater, connect it as illustrated below.
OUTLINE DIAGRAM
Connecting VVM 225 to heat pump
You can find a list of compatible air/water heat pumps
in section "Outdoor modules".
VVM 225 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).
Connecting cold and hot water
The mixer valve must be installed if the factory setting
is changed to ensure that the temperature can exceed
60 °C. National regulations must be observed. The set-
ting is made in menu 5.1.1 (See page 49).
Enamel
Stainless steel
Connecting the climate system
When connecting to a system with thermostats on all
radiators/underfloor heating coils, a relief valve must be
fitted, or a thermostat must be removed to ensure suf-
ficient flow.
Connection of extra climate system
When more than one climate system is to be heated,
the following connection can be used.
The ECS 40/ECS 41 accessory is required for this con-
nection.
-EP21-GP20-EP21-BT2
-EP21-AA25
-EP21-BT3
-EP21-QN25
-EP21
NIBE VVM 225Chapter 4 | Pipe connections20
To Next Page
Loading...
Need help?
General
