Nibe VPA 300 Use and care manual

User and Installer
manual
UN
VPA 300/200
UK
Indirect heated storage water
heater
CHB GB 1711-2
331894

Table of Contents
41 Important information
72 For the User
83 For the Installer
174 Technical data
20Item register
3Table of Contents |VPA 300/200

Safety information
This manual describes installation and service procedures
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 under-
stand the hazards involved. Children shall
not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2017.
Symbols
NOTE
This symbol indicates danger to person or ma-
chine .
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.
Marking
The CE mark is obligatory for most products sold
in the EU, regardless of where they are made.
CE
General
Serial number
The serial number can be found on top of the product.
Caution
Always give the product's serial number when
reporting a fault.
Recovery
Leave the disposal of the packaging to the in-
staller who installed the product or to special
waste stations.
Do not dispose of used products with normal
household waste. It must be disposed of at a
special waste station or dealer who provides this type of
service.
Improper disposal of the product by the user results in
administrative penalties in accordance with current legis-
lation.
Country specific information
User and Installer manual
This user and installer manual must be left with the cus-
tomer.
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
Regulations 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.centralheat-
ing.co.uk for information.
VPA 300/200Chapter 1 | Important information4
1 Important 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 guar-
antee 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).
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 docu-
ments section of the Home Information Pack.
5Chapter 1 | Important informationVPA 300/200

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 14)
Shut off valves
Venting valve
Shut off valve
Hot water (page 14)
Shut off valves
Mixing valve
Expansion vessel
T&P valve
Tundish
Cold water (page 14)
Shut off valves
Non-return valve
Safety valve
Tundish
Electricity (page 16)
Connected supply
Sensors
Temperature limiter
Miscellaneous
Benchmark checklist
VPA 300/200Chapter 1 | Important information6

Maintenance
Safety valve
The function of the safety valves must be regularly
checked, about four times a year, to prevent clogging.
To inspect the valve, open the safety valve manually and
check that water flows through the overflow pipe. If this
does not happen then the safety valve is defective and
must be replaced.
Emptying
The water heater
1. Cut the current to the immersion heater and solenoid
valve.
2. Shut off the incoming cold water.
The water heater is emptied through the siphon in the
cold water connection. To provide an air supply, a hot
water tap in the system can be opened and a pipe
coupling on the hot water side can be loosened.
The climate system
1. Cut the current to the immersion heater and solenoid
valve.
2. Shut off the incoming cold water.
Empty the double-jacketed space through the siphon in
the docking connection, exiting to the outer heat source.
The air nipple can be opened to supply air if necessary.
Consideration must be taken to the entire climate system
before the double-jacketed space is emptied.
Service
For service, contact the installer. Serial number (PF3) (14
digits) and installation date should always be stated.
Only replacement parts supplied by NIBE may be used.
NOTE
If immersion heaters are installed, please ensure
that therminal cut-out are also installed.
7Chapter 2 | For the UserVPA 300/200
2 For the User

General
VPA 300/200 is a water heater, which is suitable for
connection to heat pumps.
The water heater is designed and manufactured for a
maximum cut-off pressure of 6 bar in the water tank.
Maximum permitted temperature is 90 °C.
Maximum working pressure in the double jacket is 2.5
bar.
The insulation is Neopor and polyester fleece, which
provides excellent heat insulation. The insulation and
grey plastic outer cladding can be removed easily to
simplify moving the water heater through doorways, for
example.
VPA 300/200 can be equipped with an immersion
heater.
Transport
VPA 300/200 should be transported and stored vertically
in a dry place. The VPA 300/200 may, however, be care-
fully laid on its back when being moved into a building.
R
0
+2
0
-2
1
R
0
HMflow 49(50)°C
Hotwater
51°C
+2
0
-2
1
R
0
HMflow
49(50)°C
Hotwater
51°C
R
0
R
0
+2
0
-2
1
R
0
HMflow 49(50)°C
Hotwater
51°C
+2
0
-2
1
R
0
HMflow
49(50)°C
Hotwater
51°C
R
0
Assembly
The water heater is only designed for upright installation.
The water heater’s installation area should always have
a temperature of at least 10 °C (to prevent the risk of
damage from frost) and max 30 °C.
The water heater is unscrewed from the pallet and lifted
into position, using the lifting eye at the top.
Position VPA 300/200 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 horizontal
and stable set-up.
The area where VPA 300/200 is located must be
equipped with floor drainage.
30 - 50 mm
30 - 50 mm
15 - 40 mm
20-55 mm
Supplied components
LEK
Tundish
LEK
Pressure reduction valve
LEK
LEK
LEK
Shut off valve
LEK
Armoured hose (expansion
vessel)
LEK
Cold water inlet and expan-
sion relief valve, water
heater
LEK
Expansion vessel with
holder
Insulation plug
Cover discs
VPA 300/200Chapter 3 | For the Installer8
3 For the Installer

Component positions
VPA 300/200
UL1
FL5
UA2QM20
UA1
XR1
PF3
NameDesignation
T&P valveFL5
Venting, heating mediumQM20
Submerged tube, hot water heating, Ø 10 mm (int) sensor BT6UA1
Submerged tube, connection temperature limiter, Ø 11 mm (int)UA2
Adjustable feetUL1
Lifting eyeXR1
Serial number platePF3
9Chapter 3 | For the InstallerVPA 300/200

Removing the insulation
The insulation can be removed, to facilitate handling in
confined spaces.
■Unscrew the lifting eye at the top.
■Lift off the plastic top and the top insulation.
■Remove the joining plates holding the insulated jacket
halves together. Do not use any tools when dismant-
ling.
■Unhook and remove the insulated jacket halves, the
outer diameter of the heater becomes approx. 200
mm less without the insulated jackets.
Insulation removedDo not use any tools when dis-
mantling the joining plate.
The figure shows VPA 300/200
-Cu with insulation
UN
UN
Carry out assembly in reverse order.
Install the enclosed insulation plugs around each connec-
tion. Finally, fit all the enclosed cover discs on each con-
nection by pressing them over the connections.
NOTE
Fit the cover discs and the insulation plugs be-
fore installing the pipe.
NOTE
In certain cases, more insulation plugs are en-
closed than are required.
VPA 300/200Chapter 3 | For the Installer10

Installation
VPA 300/200 can be equipped with the following ele-
ments, connection dimension G50. When installing the
water heater, ensure that there is enough room in front
of the connection area to remove the element, see fol-
lowing table.
Fit the enclosed cover discs before pipe installation. The
cover discs, with self-adhesive backs, must be installed
on the relevant connection, by pushing them over the
connections.
All connections (including connections or holes left by
the lifting eyes that are not used) must be insulated to
minimise energy losses.
Immersion heaters
Free spaceOutputElement
250 mm1500 WIU 31
260 mm2250 WIU 33
280 mm3000 WIU 34
11Chapter 3 | For the InstallerVPA 300/200

Outline diagram
FL5
FQ10
UA2 FL7
CM4
FL1
RM1QN17
External heat source
(max 25 kW)
CM5
QM30
Explanation
Expansion vesselCM4 + CM5
Setting, expansion relief valveFL1
T&P-valveFL5
Shut off valveFL7
Temperature limiterFQ10
Shut off valve hot waterQM30
Pressure reducing valveQN17
Cold water inlet and pressure relief valve, water heaterRM1
Pocket tubeUA2
There´s a plug on the cold water inlet valve that can be
removed and there mount the flexble hose for the ex-
panssion vessel CM4.
The water heater is equipped with two outgoing docking
connection (XL9).
A drain valve can be fitted to the G11/2” or G2” connec-
tion (XL9) (use an adapter from G11/2” or G2” to the
required size) which is not used for docking.
VPA 300/200Chapter 3 | For the Installer12

System description
CP1
Tillsatsvärme
EM1
EB101
EB101
QA71
BT12
BT3
QA70
BF1 GP10
RM2 BT71
BT50BT1
QM1
QM41
QN50
GP10
HQ1
FL10
QM40 RM3
QM30RM1 QN17
FL5
FL11
QN10 FL7
CM1
CM4
FL10
AA25
CP1
EB20
BT6
Explanation
Safety valveFL10+FL11SMO 40AA25
Circulation pumpGP10Flow line sensorBF1
Particle filterHQ1Outdoor sensorBT1
Auxiliary relayQA70+QA71Temperaure sensor, returnBT3
Drain valveQM1Hot water sensorBT6
Shut-off valveQM30Temperaure sensor, condenser outBT12
Shut-off valveQM40Indoor sensorBT50
Shut-off valveQM41Return line sensorBT71
Reversing valveQN10AcctankCP1
Pressure reducing valveQN17Expansion vesselCM1+CM4
Control valveQN50Immersion heaterEB20
Cold water inlet and pressure relief valve, water heaterRM1Heat pump systemEB101
Non-return valveRM2+RM3Oil, gas, pellets or wood boilerEM1
T&P-valveFL5
Shut-off valveFL7
13Chapter 3 | For the InstallerVPA 300/200

Pipe installation
General
NOTE
Pipe installation must be carried out in accord-
ance with current norms and directives
NOTE
This installation is subject to building regulation
approval, notify the local Authority of intention
to install.
NOTE
Use only manufacturer’s recommended replace-
ment parts.
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
collecting pipes shall not be used for anything else. A
discharge pipe from the tundish connected to the expan-
sion 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.
Overflow pipes from tundish must be routed with a fall
and at least 300 mm long, before bends or angles in the
pipework (see image).
The tundish should be installed away from electrical
components.
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 al-
low 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
The tables shows the dimension of the copper overflow pipe for common safety valve connection size.
VPA 300/200Chapter 3 | For the Installer14

Hard water areas
Usually, it should not be a problem installing
VPA 300/200 in areas of hard water as the operating
temperature is 50-60 °C.
Pipe connection
The water heater must be supplied with a thermometer
and pressure gauge as well as a shut-off valve, drain
valve, non-return valve, mixer valve, safety valve, and
vacuum valve as per applicable standards.
The water heater must be provided with a mixer valve,
which limits the temperature of outgoing hot water to
60 °C. If this valve is not fitted, some other measure must
be taken to prevent the risk of scalding.
The safety valve must have a maximum opening pressure
in accordance to the applicable regulations (however
max 6 bar/0.6 MPa). The overflow pipe must be the same
size as the safety valve. The overflow pipe must be routed
downwards along its entire length and be frost proof. It
must run out unobstructed over the drain.
Commissioning and adjusting
Filling the water heater
Fill as follows:
1. Open a hot water tap in the system.
2. Open the shut-off valve on the incoming cold water.
This valve should then be fully open during opera-
tion.
3. The hot water tap can only be shut off when the
water heater is filled, which is when only water
comes out of the tap (initially an air-water mixture
comes out of the tap).
Filling the climate system
Fill as follows:
1. Connect the nessesary valves to the system between
the incoming cold water pipe and the heating sys-
tem. Open the filling valve. The primary part of the
VPA 300/200 can now be filled with water.
2. After a while the pressure gauge, if installed, will
show rising pressure. When the pressure reaches the
set pressure a mixture of air and water starts to
emerge from the pressure relief valve (not supplied).
The filling valves are then closed.
3. Turn the pressure relief valve until the boiler pressure
reaches the normal working range (0.5 - 1.5 bar).
When filling the heating system, the double-jacketed
space should be vented by opening the air nipple
(QM20) (VPA 300/200). The air nipple can be closed
when water comes out of the air hole.
4. Vent the heating system through the pressure relief
valve and the air nipple (QM20) (VPA 300/200). The
remainder of the heating system is vented by means
of each venting valve.
5. Keep topping up and venting until all air has been
removed and the pressure is correct.
Cleaning the climate system
When the water heater and the climate system have
been filled with water, VPA 300/200 must operate at
maximum normal temperature for at least one hour.
Thereafter the system must be drained of water and re-
filled.
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.
Pressure drop diagram
VPA 300/200
0,0
0,5
1,0
1,5
2,0
2,5
3,0
(kPa)
0,0 0,1 0,2 0,3 0,4 0,5 0,6 l/s
Flöde
Tryckfall
Pressure drop
(kPa)
Flow
15Chapter 3 | For the InstallerVPA 300/200

Electrical installation
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian, and in accordance with applicable electrical
safety regulations.
VPA 300/200 can be supplemented with an immersion
heater with a maximum output of 3 kW.
The immersion heater is supplemented with junction
box type K11 (2-pole thermostat, 3-pole temperature
limiter). Do not modify or reconnect!
A separate supply from group central is routed to the
immersion heater.
Sensors
VPA 300/200 can be supplemented with one hot water
sensor, for display and control. The sensor is positioned
in the pocket tube for the sensor (UA1).
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.
Temperatur limiter
Power supply to temperature limiter (FQ10) is 230 V.
Connect temperature limiter electrically to the solenoid
valve for the heat source.
Put the sensor in the pocket tube (UA2).
LEK
Connection temperature limiter
Temp. limiter
Terminal block
Cable from
solenoid valve
Supply cable
230 V
NOTE
The water heater must be completely filled with
water before it is connected on the electrical
side.
VPA 300/200Chapter 3 | For the Installer16

Dimensions
VPA 300/200
20–55 204
1757
951
1351
879
Ø 852
256
306
170100
100
17Chapter 4 | Technical dataVPA 300/200
4 Technical data

Pipe connections
VPA 300/200
XL29 XL3XL4
XL8
XL35
XL9
DimensionsNameDesignation
Ø 28 mmConnection, cold waterXL3
Ø 28 mmConnection, hot waterXL4
G1½"Connection, docking inXL8
G1½"Connection, docking outXL9
Ø 15 mmConnection T&P valveXL29
G2"Connection for immersion heater*XL35
*can be used as an access to view the cylinder internally.
VPA 300/200Chapter 4 | Technical data18

Technical specifications
VPA 300/200Type
16barMaximum water supply pressure
5.5barOperating pressure, tap water
3.5barExpansion vessel, tap water, charge pressure
3.5barPressure reduction valve, setting
6barMax design pressure
285litresVolume, water heater
200litresVolume primary double jacket
25litresVolume expansion vessel
660kgMass, unit, filled with water
2.5barMaximum primary working pressure (primary side)
7barMax operating pressure of T&P-valve
6barSet opening pressure expansion valve
1h 55min...h ...minHeating up time from 15°C to 60 °C, 14 kW power*
377litresVolume of water drawn off, above 40 °C**
10.4kWHeat transfer (60/50 °C at 60 °C hot water temperature)*
13.2kWhHeat content at 50 °C
90°CMax temperature, heating fluid
90°CMax operating temperature T&P-valve
25kWMaximum power supply
25kWDischarge capacity of T&P-valve
082 024Part No
CopperCorrosion protection
* Primary flow to achieve the maximum capacity VPA 300/200: 2300 l/h.
** At incoming temperatures 10 °C and hot water draining of 30 l/min.
Tested according to standard EN 12897:2006
Energy labelling
NIBESupplier
VPA 300/200 UKModel
C
Energy efficiency class
111WHeat loss
487lVolume
Accessories
Immersion heater
Immersion heater IU 31 - IU34
See table (page 11)
Connection box K11
Connection box with thermostat and overheating protec-
tion. (When connecting Immersion heater )
Part no. 018 893
19Chapter 4 | Technical dataVPA 300/200

Item register
A
Accessories, 19
D
Dimensions, 17
I
Important information, 4
Safety information, 4
Inspection of the installation, 6
M
Marking, 4
P
Pipe connections
Cleaning the climate system, 15
Hard water areas, 15
S
Safety information, 4
Inspection of the installation, 6
Marking, 4
Symbols on VPA 300/200, 4
Warranty information, 5
Symbols on VPA 300/200, 4
T
Technical data
Dimensions, 17
W
Warranty information, 5
VPA 300/200Chapter 5 | Item register20
5 Item register