Nibe VPD 150 Use and care manual

User and Installer
manual
UN
VPD
VPD
VPD 150, 300
Water heater Accumulator tank
CHB GB 1721-1
431365

Table of Contents
41 Important information
62 For the User
73 For the Installer
124 Technical data
15Contact information
3Table of Contents |VPD 150, 300

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.
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.
VPD 150, 300Chapter 1 | Important information4
1 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.
DateSignatureNotesDescription
✔
Hot water (page 9)
Shut off valves
Cold water (page 9)
Shut off valves
Non-return valve
Mixing valve
Safety valve
Electricity (page 11)
Sensors
5Chapter 1 | Important informationVPD 150, 300

Maintenance
Safety valve (not supplied)
The safety valve must be inspected regularly, about 4
times a year, to prevent blockages. To inspect the valve,
open the safety valve manually and check that water
flows through the overflow pipe. If this does not happen,
the safety valve is defective and must be replaced.
The safety valve sometimes releases a little water after
hot water has been used. This discharge is caused by the
expansion of cold water entering the water heater, res-
ulting in a pressure increase, whereby the safety valve
opens.
Emptying
1. Shut off the incoming cold water.
2. Open the drain connection, or the drain valve if fitted.
During draining, air must be let into the water heater by
loosening a hot water connector (XL4) or opening a hot
water tap.
To ensure that the water heater drains completely, a
hose, or a pipe, with an outlet below the lowest level of
the water heater must be attached to the drain connec-
tion or drain valve. When installed in a location that is
exposed to the risk of frost, the water heater must be
emptied whenever it is not in operation. Freezing will
result in the water heater bursting.
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.
VPD 150, 300Chapter 2 | For the User6
2 For the User

General
VPD is a water heater, which is suitable for connection
to heat pumps.
The water tank has internal stainless steel corrosion
protection.
The water heater is designed and manufactured for a
maximum cut-off pressure of 10 bar. Maximum permit-
ted temperature is 95 °C.
The insulation is polyurethane, which provides excellent
heat insulation. The outer shell on VPD is grey plastic.
VPD is equipped with submerged tube for control of hot
water heating.
Transport
VPD should be transported and stored vertically in a dry
place. The VPD may, however, be carefully 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 (frost-free).
Position VPD 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 VPD is located must be equipped with
floor drainage.
30 - 50 mm
30 - 50 mm
15 - 40 mm
20-55 mm
Supplied components
1 x straight G15/15 connec-
tion
1 x straight G15/22 connec-
tion
1 x 28/22/22 T-coupling
1 x G15 non-return valve
2 x straight 22/15 coup-
lings
2 x 22/15 connections
7Chapter 3 | For the InstallerVPD 150, 300
3 For the Installer

Component positions
VPD 150 VPD 300
LEK
XL4XL36
PF1
PF3
UA1
UA2
XL3
LEK
PF1
PF3
UA1
UA2
XL3
XL4
XL36
Pipe connections
Connection, cold water, blue (28 mm)XL3
Connection, hot water, red (22 mm)XL4
Connection, supply line from HP, white (22 mm)XL36
HVAC components
Submerged tube for hot water sensor (display)UA1
Submerged tube for hot water sensor (control)UA2
Miscellaneous
Rating platePF1
Serial number platePF3
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
VPD 150, 300Chapter 3 | For the Installer8

Pipe installation
Pipe installation must be carried out in accordance with
current norms and directives.
The water heater must be fitted with the necessary
valves, such as a safety valve, shut-off valve and non-re-
turn valve.
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.
Internal support bushes must be fitted when a plastic or
annealed copper pipe is used. An overflow pipe must be
routed from the safety valve to a suitable drain. The
overflow pipe must be the same size as the safety valve.
Route the overflow pipe from the safety valve, sloping
along its entire length and ensure that it is frost proof.
The mouth of the overflow pipe must be visible and not
placed close to electrical components.
Connection
28mmXL3 Cold water Ø
22mmXL4 Hot water Ø
22mmXL36 Supply line Ø
Heat pump
Connecting to heat pump
The heat pump supply and return are connected to VPD.
Supply line hp
Return line hp
Cold water
Hot water
Schematic diagram
The enclosed kit includes suitable connectors that can
be used for the installation.
LEK
XL4
XL36
XL3
■Install the T-coupling in position (XL3) (blue) as illus-
trated.
■Connect the return line from the heat pump to the
angled connection on the T-coupling. Install the sup-
plied non-return valve on this pipe.
■Install a shut-off valve on the incoming cold water
pipe.
■The safety valve must have a maximum 10.0 bar
opening pressure and be installed on the incoming
cold water line. The entire length of the overflow water
pipe from the safety valves must be inclined, to prevent
water pockets and must also be frost-free.
■Connect the incoming cold water to the T-coupling.
■Angled couplings, 22/15 mm, installed on connections
(XL4) and (XL36) as illustrated.
■Connect the supply line from the heat pump to pos
(XL36) (white) on the water heater section.
■Hot water connection to pos (XL4) (red) on the water
heater.
9Chapter 3 | For the InstallerVPD 150, 300

Cold and hot water
Connecting cold and hot water
There must be a mixer valve if the temperature can ex-
ceed 60 °C.
Schematic diagram
Symbol key
MeaningSymbol
Shut-off valve
Mixing valve
Safety valve
Temperature sensor
Particle filter
Installation alternative
VPD can be connected in several different ways, one of
which is shown here.
Further option information is available at www.nibe.eu
and in the respective assembly instructions for the heat
sources used.
To exhaust air heat pump
VPD can be docked with heat pump, for example NIBE
exhaust air heat pump.
VPD
VPD 150, 300Chapter 3 | For the Installer10