Nibe VVM S320 Installer Manual

Cold and hot water
The settings for hot water are made in menu 7.1.1 - "Hot
water".
CONNECTING COLD AND HOT WATER
Install as follows:
• shut-off valve
• mixing valve
A mixer valve must also be installed, if the factory setting
for hot water is changed. National regulations must be
observed.
• non-return valve
1
1
Only VVM S320 for Denmark and Norway
XL3
XL4
NIBE VVM S320 R 3X400V NL
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 domest-
ic water line as shown.
• mixing valve
A mixer valve must be installed if the factory setting is
changed to allow the temperature to exceed 60 °C. Nation-
al regulations must be observed.
XL3
XL4
Docking alternatives
More information about the alternatives is available at
nibe.eu and in the relevant assembly instructions for the
accessories used. See section "Accessories" for a list of the
accessories that can be used with VVM S320.
EXTRA HOT WATER HEATERS
The system 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
In a water heater with an immersion heater, the water is
initially heated by the heat pump. The immersion heater in
the water heater is used for keeping warm and when the
heat pump does not have sufficient power.
The water heater’s flow is connected after VVM S320.
EXTRA CLIMATE SYSTEM
In buildings with several climate systems that require differ-
ent supply temperatures, the accessory ECS 40/ECS 41 can
be connected.
A shunt valve then lowers the temperature to the underfloor
heating system, for example.
-EP21-GP10-EP21-BT2
-EP21-AA25
-EP21-BT3
-EP21-QN25
-EP21
HOT WATER CIRCULATION
A circulation pump can be controlled by VVM S320 to circu-
late the hot water. The circulating water must have a tem-
perature that prevents bacterial growth and scalding, and
national standards must be satisfied.
The HWC return can be connected to XL5 or a freestanding
water heater. If an electric water heater is connected after
the heat pump, the HWC return must be connected to the
water heater.
The circulation pump is activated via the AUX output in menu
7.4 -"Selectable in/outputs".
-QZ1-FQ3
-QZ1-GP11
-QZ1-RM1
-QZ1-RN1
-QZ1
NIBE VVM S320Chapter 4 | Pipe connections18

Nibe VVM S320 Specifications

General

Brand	Nibe
Model	VVM S320
Category	Heat Pump
Language	English