Nibe VVM 320 User guide

Installer manual
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NIBE™ VVM 320
UK 1x230V
Indoor module
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A detailed explanation of the button functions can be found on page 34.
How to scroll through menus and make different settings is described on page 36.
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The mode for setting the indoor temperature is reached, when in the start mode in the main menu, by pressing
the OK button twice. Read more about the settings on page 38.
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To temporarily increase the amount of hot water, first turn the control knob to mark menu 2 (water droplet) and
then press the OK button twice. Read more about the settings on page 46.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some measures that can be taken before you need to
contact your installer. See page 65 for instructions.

Table of Contents
21 Important information
2Safety information
62 Delivery and handling
6Transport
6Assembly
7Supplied components
8Removing the covers
93 Indoor module's design
114 Pipe connections
11General pipe connections
14Dimensions and pipe connections
15Installation alternative
215 Electrical connections
21General
24Connections
26Settings
28Optional connections
30Connecting accessories
316 Commissioning and adjusting
31Preparations
31Filling and venting
32Start-up and inspection
347 Control - Introduction
34Display unit
35Menu system
388 Control - Menus
38Menu 1 - INDOOR CLIMATE
46Menu 2 - HOT WATER
48Menu 3 - INFO
49Menu 4 - MY SYSTEM
55Menu 5 - SERVICE
619 Service
61Service actions
6510 Disturbances in comfort
65Info-menu
65Manage alarm
65Troubleshooting
6711 Accessories
6812 Technical data
68Dimensions and setting-out coordinates
69Technical specifications
71Electrical circuit diagram, 1 x 230V
76Index
1Table of Contents |NIBE™ VVM 320

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved. Chil-
dren shall not play with the appliance.
Cleaning and user maintenance shall
not be made by children without super-
vision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2014.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when main-
taining your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
VVM 320 is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it
based on relevant EU directives. The CE mark is obligat-
ory for most products sold in the EU, regardless where
they are made.
IP21 means that the product can be touched by hand,
that objects with a diameter larger than or equivalent
to 12.5 mm cannot penetrate and cause damage and
that the product is protected against vertically falling
drops.
Serial number
The serial number can be found at the bottom right of
the front cover and in the info menu (menu 3.1).
6HULDO QXPEHU
Caution
Always give the product's serial number (14
digits) when reporting a fault.
Country specific information
Installer manual
This installer manual must be left with the customer.
Great Britain
This installation is subject to building regulation approv-
al, notify the local Authority of intention to install.
Use only manufacturer’s recommended replacement
parts.
Benchmark places responsibilities on both manufactur-
ers and installers. the purpose is to ensure that custom-
ers are provided with the correct equipment for their
needs, that it is installed, commissioned and serviced
in accordance with the manufacturers instructions by
competent persons and that it meets the requirements
of the appropriate Building Regulations. The Bench-
mark Checklist can be used to demonstrate compliance
with Building Regulations and should be provided to
the customer for future reference.
Installers are required to carry out the installation,
commissioning and servicing work in accordance with
the Benchmark Code of practice which is available from
the Heating and Hotwater Industry Council who man-
age and promote the Scheme. Visit www.centralheat-
ing.co.uk for information.
Warranty and insurance information
Thank you for installing a new NIBE heat pump in your
home.
NIBE heat pumps are manufactured in Sweden to the
very highest standard so we are pleased to offer our
customers a comprehensive guarantee.
The product is guaranteed for 24 months for parts and
labour from the date of installation or 33 months from
the date of manufacture, whichever is the shorter.
The NIBE guarantee is based on the unit being installed
and commissioned by a NIBE accredited installer, ser-
viced every year and the Benchmark documents com-
pleted. Where this condition is not met, any chargeable
spare parts or components issued within the applicable
NIBE™ VVM 320Chapter 1 | Important information2
1 Important information

guarantee period still benefit from a 12 month war-
ranty from the date of issue by the manufacturer.
We recommend the installer completes and returns as
soon as possible, your guarantee registration card or
completes the guarantee form on the NIBE website
www.nibe.co.uk.
3Chapter 1 | Important informationNIBE™ VVM 320

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
✔
Heating medium (page 18)
System flushed
System vented
Expansion vessel
Particle filter
Safety valve
Shut off valves
Boiler pressure
Connected according to outline diagram
Hot water (page 18)
Shut off valves
Mixing valve
Safety valve
Pressure reduction valve
Tundish
Expansion vessel
Electricity (page 21)
Connected communication
Circuit fuses
Fuses, indoor module
Fuses property
Outside sensor
Room sensor
Current sensor
Safety breaker
Earth circuit-breaker
Setting of emergency mode thermostat
Miscellaneous
Warranty
Benchmark checklist
NIBE™ VVM 320Chapter 1 | Important information4

DateSignatureNotesDescription
✔
Docked to
5Chapter 1 | Important informationNIBE™ VVM 320

Transport
VVM 320 should be transported and stored vertically
in a dry place. The VVM 320 may, however, be carefully
laid on its back when being moved into a building.
R
0
R
0
Assembly
႑Position VVM 320 on a firm base that can take the
weight, preferably on a concrete floor or foundation.
Use the product's adjustable feet to obtain a horizont-
al and stable set-up.
30 - 50 mm
႑The area where VVM 320 is located must be
equipped with floor drainage.
Installation area
Leave a space of 500 mm in front of the product. All
service on VVM 320 can be carried out from the front.
500
NOTE
Leave 10-25 mm free space between the in-
door module and the wall behind for routing
of cables and pipes.
NIBE™ VVM 320Chapter 2 | Delivery and handling6
2 Delivery and handling

Supplied components
Room sensorOutside sensor
LEK
LEK
TundishPressure reduction valve
LEK
LEK
Connector with cableArmoured hose
(expansion vessel)
LEK
LEK
Expansion vessel with
holder
Shut off valve
Location
The kit of supplied items is placed on top of the
product.
7Chapter 2 | Delivery and handlingNIBE™ VVM 320

Removing the covers
Front cover
1
2
LEK
LEK
1. Remove the screws from the lower edge of the
front cover.
2. Lift the cover out at the bottom edge and up.
Side covers
LEK
LEK
LEK
The side covers can be removed to facilitate the install-
ation.
1. Remove the screws from the upper and lower
edges.
2. Twist the cover slightly outward.
3. Move the hatch backwards and slightly to the side.
4. Pull the cover to one side.
5. Pull the hatch forwards.
NIBE™ VVM 320Chapter 2 | Delivery and handling8

VVM 320
Wilo
VVM320
AA3
PF3
XL4 XL3 XL9 XL8 XL1 XL2
BT63
GP6
EB1
PF1
GP1
AA4
AA4-XJ3
AA4-XJ3
SF1
FL1
QM20
BT30
FD2
AA1
AA1-S2
FA1
AA2
W130
QM11
BT6
QN10
BT7
BP5
QM22
FD1
VVM 320 front
UA1
PF1
9Chapter 3 | Indoor module's designNIBE™ VVM 320
3 Indoor module's design

BT3
BT2
UB2
UB1 FL5
XL5
XL29
CM1
VVM 320 rear side
QQ1
Pipe connections
Connection, heating medium supply line Ø22
mm
XL1
Connection, heating medium return line Ø22
mm
XL2
Connection, cold water Ø22 mmXL3
Connection, hot water Ø22 mmXL4
Connection, hot water circulation Ø15 mmXL5
Connection, docking in heating medium Ø22
mm
XL8
Connection, docking out heating medium Ø22
mm
XL9
Connection, T&P valve Ø15 mmXL29
HVAC components
Expansion vessel, closed, heating mediumCM1
Safety valve, hot water heater Ø15 mmFL1
Safety valve, heating medium Ø22 mmFL2
Circulation pumpGP1
Circulation pump, heating mediumGP6
T&P valve Ø15 mmFL5
Venting, climate systemQM20
Venting valve, coilQM22
Reversing valve, climate system/water heating,
IJRw line
QN10
Filler valve, heating mediumQM11
Submerged tube, temperature limiter, com-
pressor
UA1
Sensors etc.
Manometer, heating systemBP5
Temperature sensors, heating medium IJRZBT2
Temperature sensors, heating medium returnBT3
Temperature sensor, hot water, chargingBT6
Temperature sensor, hot water, topBT7
Thermostat, standby modeBT30
Temperature sensor, heating medium supply
after immersion heater
BT63
Electrical components
Immersion heater cardAA1
AA1-S2 Switch
Base cardAA2
Input circuit boardAA3
Display unitAA4
AA4-XJ3 USB socket
AA4-XJ4 Service socket
Energy meterBF1*
Immersion heaterEB1
Miniature circuit-breakerFA1
Temperature limiterFD1
Temperature limiter, compressorFD2
SwitchSF1
Network cable for NIBE UplinkTM
W130
Miscellaneous
Rating platePF1
Serial number platePF3
Cable glandUB1
Cable glandUB2
Inspection hole, vessel, Ø80 mmQQ1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
NIBE™ VVM 320Chapter 3 | Indoor module's design10

General pipe connections
Pipe installation must be carried out in accordance with
current norms and directives.
VVM 320 together with air/water heat pump F2040-8
eller F2040-12 make up a complete installation for
heating and hot water.
The system requires a low-temperature design of the
radiator circuit. At lowest dimensioned outdoor tem-
perature the highest recommended temperatures are
55 °C on the flow line and 45 °C on the return line, but
VVM 320 can handle up to 65 °C.
Overflow water from the safety valve goes via overflow
cups to a drain so that hot water splashes cannot cause
injury. The entire length of the overflow water pipe
must be inclined to prevent water pockets and must
also be frost proof.
NIBE recommends installing VVM 320 as close to the
heat pump as possible for optimum comfort. For further
information about the location of different compon-
ents, see section "Installation alternatives" in this
manual.
NOTE
Any high points in the climate system, must
be equipped with air vents.
NOTE
The pipe systems need to be flushed out be-
fore the indoor module is connected so that
any debris cannot damage component parts.
NOTE
Switch (SF1) must not be moved to ""or" "
until VVM 320 has been filled with water.
Otherwise the temperature limiter, thermostat
and the immersion heater etc can be dam-
aged.
NOTE
This installation is subject to building regula-
tion approval, notify the local Authority of in-
tention to install.
NOTE
Use only manufacturer’s recommended re-
placement parts.
Waste water from the collection tray and from the
safety valves is led by a non-pressurised overflow pipe
to the drain so that hot water cannot cause damage.
The mouth of the overflow pipe must be visible and
not placed close to electrical components. In addition,
the opening of the overflow pipe (tundish), drain valves
and motorised valves should also be positioned away
from all electrical components. This is the only thing
the non-pressurised overflow pipe may be used for.
Even overflow pipes from tundish connected to the
expansion relief valve must be connected to the drain
in the same way.
Please note that the connection of the T&P-valve should
not be used for any other purpose.
Valves may not be positioned between the expansion
valve and the vessel.
Discharge pipes from tundishes shall have av vertical
section of pipe at least 300 mm long, before any elbows
or bends in the pipework (see following picture).
600 mm maximum
Matal discharge pipe from tundish,
with continous fall.
300 mm
minimum
Tundish
Safety device
(e.g. temperature
relief valve)
Metal discharge pipe from
temperature relief valve to tundish
Possible wall
Discharge below
fixed grating
Fixed grating
Trapped gulley
Resistance created by
each elbow or bend
Maximum resistance
allowed, expressed
as a lenght of
straight pipe (i.e. no
elbows or bends)
Minimum size of dis-
charge pipe from
tundish
Minimum size of dis-
charge pipe
Valve outlet size
0.8 mmup to 9 m22 mm15 mmG1/2
1.0 mmup to 18 m28 mm15 mmG1/2
1.4 mmup to 27 m35 mm15 mmG1/2
1.0 mmup to 9 m28 mm22 mm<G3>/4
1.4 mmup to 18 m35 mm22 mm<G3>/4
1.7 mmup to 27 m42 mm22 mm<G3>/4
11Chapter 4 | Pipe connectionsNIBE™ VVM 320
4 Pipe connections

Resistance created by
each elbow or bend
Maximum resistance
allowed, expressed
as a lenght of
straight pipe (i.e. no
elbows or bends)
Minimum size of dis-
charge pipe from
tundish
Minimum size of dis-
charge pipe
Valve outlet size
1.4 mmup to 9 m35 mm28 mmG1
1.7 mmup to 18 m42 mm28 mmG1
2.3 mmup to 27 m54 mm28 mmG1
Hard water areas
Usually, there should not be a problem in installing
VVM 320 in areas of hard water as the operating tem-
perature is 50-60 °C.
Cleaning the climate system
When the water heater and the climate system have
been filled with water, VVM 320 must operate at
maximum normal temperature for at least one hour.
Thereafter the system must be drained of water and
refilled.
Before installing the heat pump in an existing system,
it is important that the system is properly flushed
through.
Even if the heat pump is to be installed in a new system,
the heat pump and system should be flushed.
NOTE
Ensure that cleaning agent has been removed
from the entire system before adding inhibitor.
After flushing an inhibitor should be used for long-term
anti-corrosion protection.
NIBE Energy Systems Limited recommends water
treatments (supplied by e.g. Fernox and Sentinel) spe-
cifically designed for heat pumps.
Boiler and radiator volumes
H
VVM 320 is equipped with a
pressure expansion vessel of
10 Iitres.
The initial pressure of the
pressure expansion vessel
must be dimensioned accord-
ing to the maximum height
(H) between the vessel and
the highest positioned radiat-
or, see figure. An initial pres-
sure of 0.5 bar (5 mvp) means
a maximum permitted height
difference of 5 m.
The maximum system volume
excluding the boiler is 220
litres at the above pre-pres-
sure.
NIBE™ VVM 320Chapter 4 | Pipe connections12

System diagram
VVM 320 consists of water heater with charge coil, ex-
pansion vessel, safety valve, filler valve, immersion
heater, circulation pumps, buffer vessel and control
system. VVM 320 is connected to the climate system.
VVM 320 is designed for connection and communica-
tion with F2040-8/F2040-12, which together make up
a complete heating installation.
VVM 320 covers most of the heating and hot water
requirement down to the heat pump stop temperature.
When it is cold outdoors F2040-8/F2040-12 works with
VVM 320 and if the outdoor air temperature falls below
the heat pump stop temperature, all heating is carried
out by VVM 320.
Requisite safety equipment connected to F2040-
8/F2040-12 and VVM 320, see section, docking.
-EB15
-EB15-FL7
-EB101
-FL10
-QM41
-QM40
-XL1
-XL2
-EB15-QN17-FL1
POOL
-CL11-QN19
-GP9 -BT51 -HQ4
-EP5
-AA5
-CL11
Symbol key
MeaningSymbol
Shut-off valve
Tapping valve
Non-return valve
Shunt / shuttle valve
Safety valve
Thermometer
T
Trim valve
Tundish
Temperature sensor
Expansion vessel
Pressure gauge
P
Circulation pump
MeaningSymbol
Particle filter
Heat exchanger
13Chapter 4 | Pipe connectionsNIBE™ VVM 320

Dimensions and pipe connec-
tions
600
7575 757560 60
610
25
XL3XL4 XL8XL9 XL1 XL2
QM20
XL29
70177530-50
Pipe connections
Connection, heating medium flow line Ø22 mmXL1
Connection, heating medium return line Ø22
mm
XL2
Connection, cold water Ø22 mmXL3
Connection, hot water Ø22 mmXL4
Connection, hot water circulation Ø15 mmXL5
Connection, docking in heating medium Ø22
mm
XL8
Connection, docking out heating medium Ø22
mm
XL9
Connection, T&P valve Ø15 mmXL29
NIBE™ VVM 320Chapter 4 | Pipe connections14

Installation alternative
Compatible NIBE air/water heat pumps
Compatible NIBE air/water heat pumps must be
equipped with a control card with display that has the
software version given in the following list as a minim-
um. The control card version is displayed in the heat
pump's display upon start-up.
Software versionProduct
all versionsF2040-8
all versionsF2040-12
VVM 320 can be connected to extra water heater, see
below.
Further option information is available at
www.nibe.co.uk and in the respective assembly instruc-
tion for the accessory used. See page 67 move the list
of the accessories that can be used to VVM 320.
The indoor module can be supplemented with an
electric water heater, if a hot tub or other significant
consumer of hot water is installed. A mixing valve is
then installed on outgoing hot water from the heater.
Water heater with immersion heater
If it is possible to use a water heater with an immersion
heater, NIBE COMPACT or EMINENT type water heaters
can be used.
15Chapter 4 | Pipe connectionsNIBE™ VVM 320

Explanation
Pool packageCL11
Unit boxAA25
Temperature sensor, poolBT51
Exchanger, poolEP5
Pool, pumpGP9
Particle filterHQ4
Three way valve, poolQN19
VVM 320EB15
Energy meterBF1*
Shut-off valve (Solenoid valve)FL7
Pressure reduction valve with integrated check
valve
QN17
Connection, heating medium, flow 1XL1
Connection, heating medium, return 1XL2
Connection, cold waterXL3
Connection, hot waterXL4
Connection, docking, in heating mediumXL8
Connection, docking, out heating mediumXL9
Heat pumpEB101
Safety valveFL10
Shut-off valveQM40
Shut-off valveQM41
External heat source (Oil, gas, pellets or wood
fired boiler with shunt valve)
EM1
Unit boxAA25
Temperature sensor, boilerBT52
Climate system 2EP21
Unit boxAA25
Temperature sensor, heating medium, flowBT2
Temperature sensor, heating medium, returnBT3
Circulation pump, heating medium, lower shuntGP20
Mixing valve, additionQN25
Active cooling module ACS 310EQ1
Unit boxAA25
Temperature sensor, cooling, supply lineBT64
Single jacket accumulator tank, coolingCP10
Charge pumpGP12
Circulation pump, coolingGP13
Three way valve cooling/heatingQN12
Miscel-
laneous
EMK 300BF1
Expansion vessel closed, heating mediumCM1
External electrical additional heatEB1
Safety valve, hot waterFL1
Safety valve, heating mediumFL2
Circulation pump, for cooling poolGP14
Shut-off valveQM40
Non-return valveRM1
NIBE™ VVM 320Chapter 4 | Pipe connections16

Outline diagram
-EB15
-EB101
-FL10
-QM41
-QM40
-XL1
-XL2
-EB15-QN17-FL1
-GP20
-BT3
-BT2
-EP21
-AA25
-QN25
POOL
-CL11-QN19
-GP9 -BT51 -HQ4
-EP5
-AA25
-CL11
-EB15-FL7
17Chapter 4 | Pipe connectionsNIBE™ VVM 320

Connecting to heat pump
All outdoor pipes must be thermally insulated with at
least 20mm thick pipe insulation.
VVM 320 is not equipped with shut off valves; these
must be installed outside the indoor module to facilit-
ate any future servicing.
Requisite safety equipment connected to F2040-
8/F2040-12 and VVM 320, see section, docking.
-EB15
-EB101
-FL10
-QM41
-QM40
-XL1
-XL2
-EB15-FL7
Connection as electric boiler
Connect the pipe for docking in from the heat pump
(XL8) with the pipe out to the heat pump (XL9).
-EB15
-XL8 -XL9
Connecting cold and hot water
The mixing valve must be installed if the factory setting
is changed so that the temperature can exceed 60 °C.
If the factory setting is changed, national regulations
must be observed. The setting is made in menu 5.1.1
(See page 56).
Expansion of water
The expansion vessel accomodates expansion that
results from heating the water inside the unit. The ex-
pansion vessel must be connected between the expan-
sion valve and the cylinder. Tha location of the expan-
sion vessel should allow access to recharge the pressure
as and when neccessary.
-EB15
-EB15-QN17-FL1
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
sufficient flow.
-EB15
-XL1
-XL2
NIBE™ VVM 320Chapter 4 | Pipe connections18