Nibe VPB User guide

Installer manual
LEK
VPB/VPBS UK
Hot water heater
IHB GB 1237-7
031290

Table of Contents
1 Important information 2
Safety information 2
2 Delivery and handling 6
Transport 6
Assembly 6
Supplied components 6
Removing the covers 7
3 The water heater design 8
4 Pipe connections 10
General 10
Dimensions and pipe connections 11
T&P valve 13
Heat pump 13
Sun 13
Cold and hot water 14
Installation alternative 14
5 Electrical installation 16
Sensors 16
Temperature limiter 17
6 Commissioning and adjusting 18
Filling and venting 18
Start-up and inspection 19
7 Service and maintenance 20
Maintenance 20
Service actions 20
8 Technical data 21
Dimensions and setting-out coordinates 21
Technical specifications 22
Item register 25
1Table of Contents |VPB/VPBS UK

Safety information
This manual describes installation and service procedures
for implementation by specialists.
This appliance is not intended for use by persons (includ-
ing children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concern-
ing use of the appliance by a person responsible for their
safety.
Children should be supervised to ensure that they do not
play with the appliance.
Rights to make any design or technical modifications are
reserved.
©NIBE 2012.
Symbols
NOTE
This symbol indicates danger to machine or
person.
Caution
This symbol indicates important information
about what you should observe when maintain-
ing your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Serial number
The serial number can be found at the bottom right of
the front cover.
560
6HULDO QXPEHU
Caution
Always give the product's serial number 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 approval,
notify the local Authority of intention to install.
Use only manufacturer’s recommended replacement
parts.
Benchmark places responsibilities on both manufacturers
and installers. the purpose is to ensure that customers
are provided with the correct equipment for their needs,
that it is installed, commissioned and serviced in accord-
ance with the manufacturers instructions by competent
persons and that it meets the requirements of the appro-
priate Building Regulations. The Benchmark Checklist can
be used to demonstrate compliance with Building Regu-
lations and should be provided to the customer for future
reference.
Installers are required to carry out the installation, com-
missioning and servicing work in accordance with the
Benchmark Code of practice which is available from the
Heating and Hotwater Industry Council who manage and
promote the Scheme. Visit www.centralheating.co.uk for
information.
Warranty and insurance information
Thank you for installing a new NIBE water heater in your
home.
NIBE water heaters 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, serviced
every year and the Benchmark documents completed.
Where this condition is not met, any chargeable spare
parts or components issued within the applicable guaran-
tee period still benefit from a 12 month warranty 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.
Please ensure that the installer has fully completed the
Benchmark Checklist in the end of the Installation Instruc-
tions supplied with the product and that you have signed
to say that you have received a full and clear explanation
of its operation. The installer is legally required to com-
plete a commissioning checklist as a means of complying
with the appropriate Building Regulations (England and
Wales).
VPB/VPBS UKChapter 1 | Important information2
1 Important information

All installations must be notified to Local Area Building
Control either directly or through a Competent Persons
Scheme. A Building Regulations Compliance Certificate
will then be issued to the customer who should, on re-
ceipt, write the Notification Number on the Benchmark
Checklist.
This product should be serviced regularly to optimise its
safety, efficiency and performance. The service engineer
should complete the relevant Service Record on the
Benchmark Checklist after each service.
The Benchmark Checklist may be required in the event
of any warranty work and as supporting documentation
relating to home improvements in the optional documents
section of the Home Information Pack.
3Chapter 1 | Important informationVPB/VPBS UK

VPB/VPBS UKChapter 1 | Important information4

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.
DateSignatureNotesDescription
✔
Heat pump (page 13)
Shut off valves
Venting valve
Shut off valve
Hot water (page 14)
Shut off valves
Expansion vessel
T&P valve
Tundish
Cold water (page 14)
Shut off valves
Non-return valve
Mixing valve
Safety valve
Tundish
Electricity (page 16)
Hot water sensor
Temperature limiter
Miscellaneous
Benchmark checklist
5Chapter 1 | Important informationVPB/VPBS UK

Transport
VPB/VPBS should be transported and stored vertically in
a dry place. The VPB/VPBS may, however, be carefully
laid on its back when being moved into a building.
R
0
R
0
Assembly
႑The water heater is only designed for upright installa-
tion.
႑Position the water heater on a firm base that can bear
its weight, preferably on a concrete floor or founda-
tion. Use the water heater’s adjustable feet to obtain
a horizontal and stable set-up.
႑Pipes must be routed from the safety valve to a suit-
able floor drain.
႑The water heater’s installation area should always
have a temperature of at least 10 °C and max 30 °C.
Supplied components
VPB/VPBS Stainless steel
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2 x TundishPressure reduction valve
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2 x Connector with cableArmoured hose
(expansion vessel)
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Expansion vessel with holder2 x Solenoid valve
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GasketCold water shut-off and ex-
pansion relief valve,
water heater
Location
The kit of supplied items is placed on top of the product.
VPB/VPBS UKChapter 2 | Delivery and handling6
2 Delivery and handling

Removing the covers
Front cover
1
2
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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
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The side covers can be removed to facilitate the installa-
tion.
1. Remove the screws from the upper and lower edges.
2. Twist the cover slightly outward.
3. Move the cover backwards and slightly to the side.
4. Pull the cover to one side.
5. Pull the cover forwards.
7Chapter 2 | Delivery and handlingVPB/VPBS UK

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VPB/VPBS UKChapter 3 | The water heater design8
3 The water heater design

Pipe connections
Connection, cold water, Ø 22 mmXL3
Connection, hot water, Ø 22 mmXL4
Connection, hot water circulation, Ø 15 mm
(Not VPBS 300)
XL5
Docking connection, flow line (from heat pump*),
Ø22mm
XL8
Docking connection, return line (to heat pump*,
Ø22mm
XL9
Connection, flow line (from solar heating system)
Ø 22 mm (Only VPBS 300)
XL13
Connection, return line (to solar heating system)
Ø 22 mm (Only VPBS 300)
XL14
Connection, T&P valveXL29
HVAC components
T&P valve Ø 15 mmFL5
Venting, charge coilQM22
Submerged tube for hot water sensor (display)UA1
Submerged tube for hot water sensor (control)UA2
Submerged tube for solar sensor (control) (only
VPBS 300)
UA3
Submerged tube for temperature limiterUA4
Submerged tube for temperature limiterUA5
Electrical components
Temperature limiterFD1
Miscellaneous
Serial number platePF 3
Adjustable feetUL
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
*or another external heat source
9Chapter 3 | The water heater designVPB/VPBS UK

General
Pipe installation must be carried out in accordance with
current norms and directives.
Internal support bushes should be fitted when a plastic
pipe or annealed copper pipe is used. The water heater
must be fitted with the requisite valves, such as a safety
valve, shut-off valve, non-return valve, and vacuum valve.
An overflow pipe must be routed from the safety valve
to a suitable drain. The size of the overflow pipe must be
the same as on the safety valve. Route the overflow pipe
from the safety valve enclosed along its entire length and
ensure that it is frost proof. The outlet of the overflow
pipe should be visible and clearly away from any electrical
components.
Overflow water from the safety valves goes via non-
pressurised collecting pipes to a drain so that hot water
splashes cannot cause injury. These non-pressurised col-
lecting pipes shall not be used for anything else. A dis-
charge pipe from the tundish connected to the expansion
relief valve (safety valve) shall also be connected to a 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
Tundish
Metal discharge pipe from
temperature relief valve to tundish.
Safety device
(e.g. temperature
relief valve).
300 mm
minimum
Metal discharge pipe from tundish,
with continous fall.
Possible wall
Discharge below
fixed grating.
Trapped gulley
Fixed grating
NOTE
The expansion vessel accomodates expansion
that results from heating the water inside the
unit. The expansion vessel must be connected
between the expansion valve and the cylinder.
The location of the expansion vessel should allow
access to recharge the pressure as and when
necessary.
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 mmG3/4
1.4 mmup to 18 m35 mm22 mmG3/4
1.7 mmup to 27 m42 mm22 mmG3/4
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
VPB/VPBS in areas of hard water as the operating temper-
ature is 50-60 °C.
Cleaning the climate system
When the water heater and the climate system have been
filled with water, VPB/VPBS must operate at maximum
normal temperature for at least one hour. Thereafter the
system must be drained of water and refilled.
VPB/VPBS UKChapter 4 | Pipe connections10
4 Pipe connections

Emptying the system by
1. Open external filler valve and external drain valve.
2. Flush the system for some minute. Watch out for
water splashes from the safety valve.
3. Close the valves and check the stainer.
Dimensions and pipe connec-
tions
VPB 200/VPB 300
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VPBS 300
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Connection
22mmXL3 Cold water Ø
22mmXL4 Hot water Ø
15mmXL5 Hot water circulation Ø
22mmXL8 Docking connection, flow line Ø
22mmXL9 Docking connection, return line Ø
22mmXL13 Solar flow line Ø
22mmXL14 Solar return line Ø
15mmXL29 T&P valve Ø
11Chapter 4 | Pipe connectionsVPB/VPBS UK

600
600
30
60
205
135
535
480
25
390
80
100
210
430
440
80
75
440
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VPB/VPBS UKChapter 4 | Pipe connections12

T&P valve
Install the pipe for the T&P valve as illustrated below.
Heat pump
Connecting to heat pump
The heat pump supply and return are connected to
VPB/VPBS.
Sun
Connecting to solar power
The solar heating system's supply and return are connec-
ted to VPBS 300.
13Chapter 4 | Pipe connectionsVPB/VPBS UK

Cold and hot water
Connecting cold and hot water
There must be a mixing valve if the temperature can ex-
ceed 60 °C.
The flexible hose to the expansion vessel can be installed
in the plugged connection on the safety valve.
Connecting hot water circulation
VPB/VPBS R and E have a connection that allows hot
water circulation.
To reduce the risk of bacterial growth in systems with
hot water circulation, the temperature of the circulating
water should not fall below 50 °C. There should not be
any non-circulatory hot water pipes. Adjust the hot water
system so that the temperature does not fall below 50
°C at the ends of the system.
Installation alternative
VPB/VPBS can be connected in several different ways,
one of which is shown here.
Further option information is available at www.nibe.co.uk
and in the respective assembly instructions for the heat
pumps used.
Symbol key
MeaningSymbol
Venting valve
Shut-off valve
Non-return valve
Mixing valve
Safety valve
T&P valve
Tundish
Temperature sensor
Circulation pump
Particle filter
VPB/VPBS UKChapter 4 | Pipe connections14

To ground source heat pump
VPB/VPBS can be docked with another heat source, for
example NIBE F1145.
To solar heating
VPBS 300 can be docked to solar heating system.
T
P
15Chapter 4 | Pipe connectionsVPB/VPBS UK

NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian. Electrical installation and wiring must be
carried out in accordance with the stipulations
in force.
Sensors
VPB/VPBS can be supplemented with up to two hot water
sensors, one for display and one for control. The display
sensor is positioned in the submerged tube for the display
sensor (UA1) and the control sensor in the submerged
tube for control sensor (UA2). In cases where it is only
possible to connect one sensor, use the submerged tube
for control sensor (UA2).
VPBS 300 can also be supplemented with a solar sensor.
This is placed in the submerged tube for solar sensor
(UA3).
Use the sensors provided with the heat pump/control
module. When no heat sensors have been provided these
must be ordered from the manufacturer of the heat
pump/control module.
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VPB/VPBS UKChapter 5 | Electrical installation16
5 Electrical installation

Temperature limiter
Power supply to temperature limiter (FD1) is 230 V.
Connect temperature limiter (FD1) electrically to the
solenoid valves, one to each heat source.
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17Chapter 5 | Electrical installationVPB/VPBS UK

NOTE
At the time of commissioning, complete all rel-
evant sections of the Benchmark Checklist loc-
ated at the back of this document.
Completion of the Benchmark Checklist is a
condition of warranty. For full terms and condi-
tions of warranty, please see our website
www.nibe.co.uk.
Filling and venting
Filling the hot water heater
1. Open a hot water tap in the house.
2. Fill the hot water heater through the cold water
connection (XL3).
3. When the water that comes out of the hot water tap
is no longer mixed with air, the water heater is full
and the tap can be closed.
Filling and venting the charge coil
Filling
1. Open the filling valve (external, not included with the
product). Fill the coil in the hot water heater and the
rest of the climate system with water.
2. Open the venting valve (QM22).
3. When the water that exits the venting valve (QM22)
is not mixed with air, close the valve. After a while
the pressure starts to rise.
4. Close the filling valve when the correct pressure is
obtained.
Venting
1. Vent the coil via the venting valve (QM22) and the
rest of the climate system via the relevant venting
valves.
2. Keep topping up and venting until all air has been
removed and the pressure is correct.
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The figure shows VPBS 300.
VPB/VPBS UKChapter 6 | Commissioning and adjusting18
6 Commissioning and adjusting