Nibe VVM S320 User guide

Installer manual
Indoor module
NIBE VVM S320
IHB EN 2208-1
631794

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Setting the indoor temperature.
13.45 3 October
Climate system 1
Offset
Heating
Smartguide
Hi!
Your system is working properly. Do you want help making
changes?
Yes please, take me to Smartguide.
October13.45 3
Here, you can set the temperature in the installation's zones.Smartguide helps you both to view information about the current
status and to make the most common settings easily. The inform-
ation that you see depends on the product you have and the ac-
cessories that are connected to the product.
Product overview
Company AB
Phone number
VVMS320
01234567890123
1.0.0
Product
overview
Product name
Serial number
Software
Service
October13.45 3
Update
Increasing hot water temperature
13.45 3 October
More hot water
Hot water
Here, you can find information about product name, the product's
serial number, the version of the software and service. When
there is new software to download, you can do it here (provided
that VVM S320 is connected to myUplink).
Here, you can start or stop a temporary increase in the hot water
temperature.

41 Important information
4Safety information
4Symbols
4Marking
4Serial number
5Inspection of the installation
6Outdoor modules
72 Delivery and handling
7Transport
7Assembly
7Supplied components
8Handling panels
103 Indoor module's design
10General
12Distribution boxes
134 Pipe connections
13General
16Dimensions and pipe connections
17Connecting to air/water heat pump
17Use without heat pump
17Climate system
18Cold and hot water
18Docking alternatives
195 Electrical connections
19General
21Connections
27Settings
286 Commissioning and adjusting
28Preparations
28Filling and venting
29Start-up and inspection
31Setting the cooling/heating curve
337 myUplink
33Specification
33Connection
33Range of services
348 Control - Introduction
34Display unit
35Navigation
35Menu types
37Climate systems and zones
389 Control – Menus
38Menu 1 – Indoor climate
42Menu 2 – Hot water
44Menu 3 - Info
45Menu 4 - My system
49Menu 5 - Connection
50Menu 6 - Scheduling
51Menu 7 - Service
5710 Service
57Service actions
6011 Disturbances in comfort
60Info-menu
60Manage alarm
60Troubleshooting
62Add. heat only
6312 Accessories
6513 Technical data
65Dimensions and setting-out coordinates
66Technical specifications
68Electrical circuit diagram
80Item register
83Contact information
3Table of ContentsNIBE VVM S320
Table of Contents

Safety information
This manual describes installation and service procedures
for implementation by specialists.
The manual must be left with the customer.
Symbols
Explanation of symbols that may be present in this manual.
NOTE
This symbol indicates danger to person or machine.
Caution
This symbol indicates important information about
what you should consider when installing or servi-
cing the installation.
TIP
This symbol indicates tips on how to facilitate us-
ing the product.
Marking
Explanation of symbols that may be present on the product’s
label(s).
Danger to person or machine.
!
Read the User Manual.
Serial number
The serial number can be found at the bottom right on
VVM S320, in the display on the home screen "Product
overview" and on the type plate(PZ1).
Caution
You need the product's (14 digit) serial number for
servicing and support.
NIBE VVM S320Chapter 1 | Important information4
Important information

Inspection of the installation
Current regulations require the heating installation to be inspected before it is commissioned. The inspection must be
carried out by a suitably qualified person. Fill in the page for information about installation data in the User manual.
DateSignatureNotesDescription
✔
Connecting to air/water heat pump
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Boiler pressure
Connected according to outline diagram
Flows according to table in section "Minimum
system flows", chapter "Pipe connections"
Cold and hot water
Shut off valves
Mixing valve
Safety valve
Electrical connections
Connected communication
Circuit fuses
Fuses, indoor module
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Setting emergency mode
Miscellaneous
Docked to
5Chapter 1 | Important informationNIBE VVM S320

Outdoor modules
COMPATIBLE AIR/WATER HEAT PUMPS
In some air/water heat pumps, manufactured before or
during 2019, the circuit board must be updated in order to
be compatible with VVM S320.
F2040
F2040-8
Part no. 064 109
F2040-6
Part no. 064 206
F2040-12
Part no. 064 092
F2120
F2120-8 3x400V
Part no. 064 135
F2120-8 1x230V
Part no. 064 134
F2120-12 3x400V
Part no. 064 137
F2120-12 1x230V
Part no. 064 136
F2120-16 3x400V
Part no. 064 139
S2125
S2125-8 3x400V
Part no. 064 219
S2125-8 1x230V
Part no. 064 220
S2125-12 3x400V
Part no. 064 217
S2125-12 1x230V
Part no. 064 218
NIBE SPLIT HBS 05
HBS 05-6
Part no. 067 578
AMS 10-6
Part no. 064 205
HBS 05-12
Part no. 067 480
AMS 10-8
Part no. 064 033
HBS 05-12
Part no. 067 480
AMS 10-12
Part no. 064 110
NIBE SPLIT
HBS 20-6
Part no. 067 668
AMS 20-6
Part no. 064 235
NIBE VVM S320Chapter 1 | Important information6

Transport
VVM S320 should be transported and stored vertically in a
dry place.
However, the VVM S320 can be carefully laid on its back
when being moved into a building.
R
0
R
0
Assembly
•Place VVM S320 on a solid foundation indoors that can
take its weight. Use the product's adjustable feet to obtain
a horizontal and stable set-up.
Use the product’s adjustable feet to attain a horizontal
and stable set-up.
30 - 50 mm
30 - 50 mm
15 - 40 mm
20-55 mm
•The space where VVM S320 is located must be frost-free.
•Because water can emerge from the safety valve, the area
where VVM S320 is located must be provided with floor
drainage.
INSTALLATION AREA
Leave a free space of 800 mm in front of the product. All
service on VVM S320 can be carried out from the front.
50 50
10 – 25
800
NOTE
Leave 10 – 25 mm free space between VVM S320
and the wall behind for routing cables and pipes.
Supplied components
Room sensor
Outside sensor
UN
Compression ring coupling*
*Only applies to Germany, Austria,
Switzerland and Italy. This compres-
sion ring coupling must be used in-
stead for the factory-fitted plug, if
you want to connect hot water circu-
lation to XL5.
LEK
LEK
LEK
Current sensor*
*Only to 3X400V
LOCATION
The kit of supplied items is placed on top of the product.
7Chapter 2 | Delivery and handlingNIBE VVM S320
Delivery and handling

Handling panels
OPEN FRONT HATCH
Press the hatch's top left corner to open it.
REMOVE THE FRONT
1. Remove the screw in the hole next to the on/off button
(SF1).
2. Pull the panel's top edge towards you and lift diagonally
upwards to remove it from the frame.
UN
ASSEMBLE THE FRONT
1. Hook one bottom corner of the front onto the frame.
2. Hook the other corner in place.
3. Check the display is straight. Adjust if necessary.
NIBE VVM S320Chapter 2 | Delivery and handling8

4. Press the top of the front section against the frame and
screw it into place.
OPEN VENT COVER
REMOVE SIDE PANEL
The side panels can be removed to facilitate the installation.
1. Remove the screws from the upper and lower edges.
UN
2. Twist the panel slightly outwards.
UN
3. Move the panel outwards and backwards.
UN
4. Assembly takes place in the reverse order.
9Chapter 2 | Delivery and handlingNIBE VVM S320

General
UN
BP5
BT63
GP1
CM1
XL4 XL3 XL9 PZ1
PZ3
XL8 XL1 XL2
GP6
FL1
FL2
QN10 BT7
AA4
SF1
XF3
UN
UB1
UB2
FC1
XL5
QM20
QM22
BT3
BT2
XF8
BF1
EB1
BT6
VM1
QM11
QM13
RM1
NIBE VVM S320Chapter 3 | Indoor module's design10
Indoor module's design

LIST OF COMPONENTS
Pipe connections
Heating medium connection, supplyXL1
Heating medium connection, returnXL2
Cold water connectionXL3
Hot water connectionXL4
Hot water circulation connection (does not apply to VVM S320 CU)XL5
Docking connection, supply, from heat pumpXL8
Docking connection, return, to heat pumpXL9
HVAC components
Expansion vessel, closed, heating mediumCM1
Safety valve, hot water heater2) FL1
Safety valve, heating mediumFL2
Circulation pumpGP1
Circulation pump, heating mediumGP6
Filler valve, heating mediumQM11
Filler valve, heating mediumQM13
Venting, climate systemQM20
Venting valve, coilQM22
Reversing valve, climate system/water heating, flow lineQN10
Non-return valve, cold water1)2) RM1
TundishWM1
Sensors etc.
Manometer, heating systemBP5
Temperature sensors, heating medium flowBT2
Temperature sensors, heating medium returnBT3
Temperature sensor, hot water, chargingBT6
Temperature sensor, hot water, topBT7
Temperature sensor, heating medium supply after immersion heaterBT63
Electrical components
Base cardAA2
Display unitAA4
Electrial anode boardAA8
Flow meterBF1
Immersion heaterEB1
Miniature circuit breaker3) FC1
Temperature limiterFQ10
FQ10-S2 Resetting temperature limiter
On/off buttonSF1
USB socketXF3
Network connection for myUplinkXF8
Miscellaneous
Rating platePZ1
Serial number platePZ3
Cable glandUB1
Cable glandUB2
Designations according to standard EN 81346-2.
1)Not Denmark and Norway.
2)Not model "NIBE VVM S320 R 3x400V NL".
3)Not 3x400V.
11Chapter 3 | Indoor module's designNIBE VVM S320

Distribution boxes
-X29
-X28
1 0-5V 2 +5V
3 AUX1 4 AUX2 5 AUX3 6 AUX4 7 AUX5 8 AUX6 9 AUX7
10 AUX8 11AUX9 12 BT25
1
1
2
3
2 3 4 5 6 7 8 9
10
11
12
GND
+12V
B
A
OT+ OT−
0-5V
PWM0 PWM1
CPU
EXT COM
INT COM
ERROR
POWER
+5V
GND
BE1 BE2 BE3
K10
-X27
NO
O
NC
AUX-RELAY
13 BT50 14 BT1
-X30
FQ10
AA2
FQ10-S2
AA8
ELECTRICAL COMPONENTS
Base cardAA2
Electrical anode board1 AA8
Temperature limiterFQ10
FQ10-S2 Resetting temperature limiter
1Only VVM S320 with enamelled vessel.
NIBE VVM S320Chapter 3 | Indoor module's design12

General
Pipe installation must be carried out in accordance with
current regulations. See manual for compatible NIBE
air/water heat pump for installation of the heat pump.
NOTE
The heating medium side and the domestic hot
water side must be fitted with the necessary
safety equipment in accordance with the applic-
able regulations.
The pipe dimension should not be less than the recommen-
ded pipe diameter according to the table. However, each
system must be dimensioned individually to manage the
recommended system flows.
MINIMUM SYSTEM FLOWS
The installation must be dimensioned at least to manage
the minimum defrosting flow at 100% pump operation, see
table.
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimumflow
during de-
frosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.19
AMS 10-6/
HBS 05-6
AMS 10-8/
HBS 05-12
22200.29AMS 10-12/
HBS 05-12
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimumflow
during de-
frosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.19
AMS 20-6/
HBS 20-6
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimumflow
during de-
frosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.19
F2040-6
F2040-8
22200.29F2040-12
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimumflow
during de-
frosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.27
F2120-8
(1x230V)
F2120-8
(3x400V)
28250.35
F2120-12
(1x230V)
F2120-12
(3x400V)
28250.38
F2120-16
(3x400V)
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimumflow
during de-
frosting
(100% pump
speed (l/s)
Air/water
heat pump
28250.32
S2125-8
(1x230V)
S2125-8
(3x400V)
S2125-12
(1x230V)
S2125-12
(3x400V)
NOTE
An undersized system can result in damage to the
product and lead to malfunctions.
VVM S320 together with a compatible NIBE air/water heat
pump (See section Outdoor modules.) constitutes a complete
installation for heating and hot water.
The system requires the radiator circuit to be designed for
a low temperature heating medium. At lowest dimensioned
outdoor temperature, the highest recommended temperat-
ures are 55 °C on the supply line and 45 °C on the return
line, but VVM S320 can handle up to 70 °C.
Overflow water from the safety valve goes via an overflow
cup to a drain so that hot water splashes cannot cause in-
jury. The entire length of the overflow water pipe must be
inclined to prevent water pockets, and must also be frost-
proof. The mouth of the overflow water pipe must be visible
and not located close to electrical components.
NIBE recommends installing VVM S320 as close to the heat
pump as possible for the optimum comfort. For further in-
formation about the location of various components, see
section "Installation alternatives" in this manual.
13Chapter 4 | Pipe connectionsNIBE VVM S320
Pipe connections

Caution
Ensure that incoming water is clean. When using
a private well, it may be necessary to supplement
with an extra water filter.
NOTE
Any high points in the climate system, must be
equipped with air vents.
NOTE
The pipe systems need to be flushed out before
the indoor module is connected so that any debris
cannot damage component parts.
NOTE
Do not start the system before filling up with wa-
ter. Components in the system could be damaged.
SYSTEM VOLUME
H
VVM S320 is equipped with an expan-
sion vessel (CM1).
The volume of the expansion vessel
is 10 litres and it is pre-pressurised as
standard to 0.5 bar. As a result, the
maximum permitted height "H"
between the expansion vessel and the
highest installed radiator is 5 m, see
figure.
If the pre-pressure is not high enough,
it can be increased by filling with air via the valve in the ex-
pansion vessel. Any change in the pre-pressure affects the
ability of the expansion vessel to handle the expansion of
the water.
The maximum system volume, excluding VVM S320, is 220
litres at the above-mentioned pre-pressure.
SYMBOL KEY
MeaningSymbol
Shut-off valve
Tapping valve
Non-return valve
Mixing valve
Circulation pump
Immersion heater
Expansion vessel
Filterball
Flow meter/energy meter
Safety valve
Trim valve
Reversing valve/shunt
Overflow valve
Under floor heating systems
Air/water heat pump
Radiator system
Domestic hot water
Hot water circulation
NIBE VVM S320Chapter 4 | Pipe connections14

SYSTEM DIAGRAM
VVM S320 consists of water heater with charge coil, expan-
sion vessel, safety valve, filler valve, immersion heater, cir-
culation pumps, buffer vessel and control system. VVM S320
connects to the climate system.*
VVM S320 is directly adapted for connection and communic-
ation with a compatible NIBE air/water heat pump, see sec-
tion "Outdoor modules", and together they constitute a
complete heating installation.
When it is cold outdoors, the air/water heat pump works
with VVM S320, and if the outdoor air temperature falls be-
low the heat pump’s stop temperature, all heating is carried
out by VVM S320.
XL 4 3 9 8 1 2
*Non-return valve is not included in VVM S320 in NIBE VVM S320 E 3x400V
DK and NIBE VVM S320 R EM 3x230V.
NIBE VVM S320 R 3x400V NL
XL 4 3 9 8 1 2
Non-return valve and safety valve must be fitted outside
NIBE VVM S320 R 3x400V NL. Non-return valve and safety valve are not in-
cluded in NIBE VVM S320 R 3x400V NL. See section "Cold and hot water".
National regulations must be observed.
Connection, heating medium supply line Ø22 mmXL1
Connection, heating medium return line Ø22 mmXL2
Connection, cold water Ø22 mmXL3
Connection, hot water Ø22 mmXL4
Connection, hot water circulation Ø15 mm (does not ap-
ply to VVM S320 CU)
XL5
Connection, docking from heat pump Ø22 mmXL8
Connection, docking to heat pump Ø22 mmXL9
15Chapter 4 | Pipe connectionsNIBE VVM S320

Dimensions and pipe
connections
622
600
560 440
70
1800
20-50
25
60
135
210
390
465
540
PIPE DIMENSIONS
Connection
22mmHeating medium supply/return ØXL1 / XL2
22mmCold/hot water ØXL3 / XL4
15mmHot water circulation
(does not apply to VVM S320 CU) Ø
XL5
22mmDocking heating medium in/out ØXL8 / XL9
NIBE VVM S320Chapter 4 | Pipe connections16

Connecting to air/water heat
pump
You can find a list of compatible air/water heat pumps in
section "Compatible air/water heat pumps".
Caution
Also, consult the Installer Manual for your air/water
heat pump.
Install as follows:
•pressure relief valve
Some heat pump models have a factory-fitted safety
valve.
•drain valve
For draining the heat pump during prolonged power fail-
ures. Only for heat pumps that do not have a gas separat-
or.
•non-return valve
A non-return valve is only required in those installations
where the placement of the products in relation to each
other can cause self-circulation.
If the heat pump is already fitted with a non-return valve,
there is no need to install another.
•shut-off valve
To facilitate any future servicing.
•filterball or particle filter
Installed before connection "heating medium return" (XL2)
(the lower connection) on the vacuum pump.
In installations with a particle filter, the filter is combined
with an additional shut-off valve.
EB101-XL1
EB101-XL2
XL8
XL9
Use without heat pump
Connect the pipe for docking in from the heat pump (XL8)
with the pipe out to the heat pump XL9.
Select "Add. heat only" in menu 4.1 - "Operating mode".
Enter menu 7.3.2 - "Installed heat pump" and deactivate the
heat pump.
Also see section "Commissioning without heat pump".
XL8
XL9
Climate system
A climate system is a system that regulates the indoor
temperature with the help of the control system in VVM S320
and, for example, radiators, underfloor heating, underfloor
cooling, fan coils, etc.
CONNECTING THE CLIMATE SYSTEM
Install as follows:
•When connecting to a system with thermostats on all ra-
diators/underfloor heating coils, either a bypass valve
must be fitted or some of the thermostats must be re-
moved to ensure there is sufficient flow and heat emission.
XL1
XL2
17Chapter 4 | Pipe connectionsNIBE VVM S320

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 valve1
1Only 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

General
All electrical equipment, except the outdoor sensors, room
sensors and the current sensors are ready connected at the
factory.
•Disconnect VVM S320 before insulation testing the house
wiring.
•If the building is equipped with an earth-fault breaker,
VVM S320 should be equipped with a separate one.
•VVM S320 must be installed via an isolator switch. The
cable area has to be dimensioned based on the fuse rating
used.
•If a miniature circuit breaker is used, this must have at
least triggering characteristic "C". See section "Technical
specifications" for fuse size.
•Use a screened cable for communication with the heat
pump.
•To prevent interference, sensor cables to external connec-
tions must not be laid close to high voltage cables.
•The minimum area of communication and sensor cables
to external connections must be 0.5 mm² up to 50 m, for
example EKKX, LiYY or equivalent.
•For an electrical wiring diagram for VVM S320, see the
"Technical specifications" section.
•When cable routing in VVM S320, the cable grommets (UB1
and UB2) must be used.
UB1
UB2
FC1
NOTE
Electrical installation and any servicing must be
carried out under the supervision of a qualified
electrician. Disconnect the current using the cir-
cuit breaker before carrying out any servicing.
NOTE
If the supply cable is damaged, only NIBE, its ser-
vice representative or similar authorised person
may replace it to prevent any danger and damage.
NOTE
Check the connections, main voltage and phase
voltage before the machine is started to prevent
damage to the indoor module's electronics.
NOTE
Do not start the system before filling up with wa-
ter. Components in the system could be damaged.
MINIATURE CIRCUIT-BREAKER
The operating circuit in VVM S320 and some of its internal
components are fused internally by a miniature circuit
breaker (FC1).
(Only applies to 1x230 V and 3x230 V.)
19Chapter 5 | Electrical connectionsNIBE VVM S320
Electrical connections

ACCESSIBILITY, ELECTRICAL CONNECTION
Removing the cover
The cover is opened using a screwdriver.
Removing the covers
The cover is opened using a screwdriver.
MINIATURE CIRCUIT-BREAKER
The operating circuit in VVM S320 and some of its internal
components are fused internally by a miniature circuit
breaker (FC1).
(Only applies to 1x230 V and 3x230 V.)
CABLE LOCK
Use a suitable tool to release/lock cables in the heat pump
terminal blocks.
Terminal block
1.
2.
TEMPERATURE LIMITER
-X29
-X28
1 0-5V 2 +5V
3 AUX1 4 AUX2 5 AUX3 6 AUX4 7 AUX5 8 AUX6 9 AUX7
10AUX8 11AUX9 12 BT25
1
1
2
3
2 3 4 5 6 7 8 9
10
11
12
GND
+12V
B
A
OT+ OT−
0-5V
PWM0 PWM1
CPU
EXT COM
INT COM
ERROR
POWER
+5V
GND
BE1 BE2 BE3
K10
-X27
NO
O
NC
AUX-RELAY
13 BT50 14 BT1
-X30
FQ10-S2
The temperature limiter (FQ10) cuts the power supply to the
electric additional heat if the temperature rises above 89 °C
and it is reset manually.
Resetting
The temperature limiter (FQ10) is accessed behind the front
cover. Reset the temperature limiter by pressing its button
(FQ10-S2).
NIBE VVM S320Chapter 5 | Electrical connections20