STIEBEL ELTRON WPL 10 I Operation Instruction

Category
Oxygen Equipment
Type
Operation Instruction

This manual is also suitable for

OPERATION AND INSTALLATION
Compact air source heat pump
» WPL 10 I
» WPL 10 IK 3
2 | WPL 10 www.stiebel-eltron.com
CONTENTS
SPECIAL INFORMATION
OPERATION
1. General information �����������������������������������������3
1.1 Relevant documents_____________________________________________ 3
1.2 Safety instructions _______________________________________________ 3
1.3 Other symbols in this documentation _______________________ 4
1.4 Units of measurement __________________________________________ 4
1.5 Standardised output data ______________________________________ 4
2. Safety ���������������������������������������������������������� 4
2.1 Intended use ______________________________________________________ 4
2.2 General safety instructions ____________________________________ 4
2.3 Test symbols ______________________________________________________ 4
3. Appliance description ���������������������������������������4
3.1 Properties _________________________________________________________ 4
3.2 Function ___________________________________________________________ 5
4. Settings ������������������������������������������������������� 5
5. Maintenance and care ���������������������������������������5
6. Troubleshooting ����������������������������������������������5
INSTALLATION
7. Safety ���������������������������������������������������������� 6
7.1 General safety instructions ____________________________________ 6
7.2 Instructions, standards and regulations ____________________ 6
8. Appliance description ���������������������������������������6
8.1 Standard delivery ________________________________________________ 6
8.2 Accessories ________________________________________________________ 6
8.3 Details on energy consumption _______________________________ 6
9. Preparations ��������������������������������������������������7
9.1 Electrical installation____________________________________________ 8
10. Installation ����������������������������������������������������8
10.1 Transport __________________________________________________________ 8
10.2 Siting _______________________________________________________________ 8
10.3 Heating water connection ______________________________________ 8
10.4 Oxygen diffusion _________________________________________________ 9
10.5 Filling the heating system _____________________________________ 9
10.6 Venting the heating system ____________________________________ 9
10.7 Safety temperature controller for underfloor heating
system _____________________________________________________________ 9
10.8 Buffer cylinders __________________________________________________ 9
10.9 Flow rate, heating side ________________________________________ 10
10.10 Condensate drain _______________________________________________ 11
10.11 Second heat generator ________________________________________ 11
10.12 Removing the casing parts ___________________________________ 11
11. Power supply ����������������������������������������������� 12
11.1 General ___________________________________________________________ 12
11.2 Electrical connection WPL10I _______________________________ 12
11.3 Electrical connection WPL10IK3 ___________________________ 12
11.4 Connecting compressor and electric emergency/
booster heater ___________________________________________________ 13
11.5 Control voltage connection ___________________________________ 14
11.6 Low voltage connection _______________________________________ 14
12. Fitting casing components �������������������������������� 14
13. Fitting air hoses �������������������������������������������� 15
13.1 WPL 10 I ___________________________________________________________ 15
13.2 WPL 10 IK 3 _______________________________________________________ 16
14. Commissioning ��������������������������������������������� 16
14.1 Checks before commissioning the heat pump manager 16
14.2 Commissioning the heat pump manager __________________ 16
14.3 Initial start-up ___________________________________________________ 16
15. Shutdown ��������������������������������������������������� 17
15.1 Standby mode ___________________________________________________ 17
15.2 Power interruption _____________________________________________ 17
16. Appliance handover ���������������������������������������� 17
17. Troubleshooting �������������������������������������������� 18
17.1 Controls on the IWS ____________________________________________ 18
17.2 Fan noise _________________________________________________________ 18
18. Maintenance ������������������������������������������������ 18
19. Specification ������������������������������������������������ 19
19.1 Dimensions and connections WPL10I _____________________ 19
19.2 Dimensions and connections WPL10IK3 _________________20
19.3 Wiring diagram WPL10I ______________________________________ 21
19.4 Wiring diagram WPL10IK3 __________________________________22
19.5 Output diagrams WPL10I | WPL10IK3 ___________________ 23
19.6 Data table ________________________________________________________ 24
GUARANTEE
ENVIRONMENT AND RECYCLING
www.stiebel-eltron.com WPL 10 | 3
SPECIAL INFORMATION | OPERATION
General information
SPECIAL INFORMATION
- The appliance may be used by children aged8
and up and persons with reduced physical, sen-
sory or mental capabilities or a lack of experience
and know-how, provided that they are supervised
or they have been instructed on how to use the
appliance safely and have understood the result-
ing risks. Children must never play with the ap-
pliance. Children must never clean the appliance
or perform user maintenance unless they are
supervised.
- The connection to the power supply must be in
the form of a permanent connection. Ensure the
appliance can be separated from the power sup-
ply by an isolator that disconnects all poles with
at least 3mm contact separation.
- Maintain the minimum clearances to ensure trou-
ble-free operation of the appliance and facilitate
maintenance work.
- Never interrupt the heat pump power supply,
even outside the heating season. Otherwise, sys-
tem frost protection is not guaranteed.
- The heat pump manager automatically switches
the heat pump to summer or winter mode.
- If the heat pump and frost protection are com-
pletely switched off, drain the system on the
water side.
OPERATION
1. General information
The chapters "Special Information" and "Operation" are intended
for both the user and qualified contractors.
The chapter "Installation" is intended for qualified contractors.
Note
Read these instructions carefully before using the appli-
ance and retain them for future reference.
Pass on the instructions to any new user where appro-
priate.
1.1 Relevant documents
Operating and installation instructions for the WPM heat
pump manager
Operating and installation instructions of all other com-
ponents in the system
1.2 Safety instructions
1.2.1 Structure of safety instructions
!
KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
Steps to prevent the risk are listed.
1.2.2 Symbols, type of risk
Symbol Type of risk
Injury
Electrocution
1.2.3 Keywords
KEYWORD Meaning
DANGER Failure to observe this information will result in serious
injury or death.
WARNING Failure to observe this information may result in serious
injury or death.
CAUTION Failure to observe this information may result in non-seri-
ous or minor injury.
!
OPERATION
Safety
4 | WPL 10 www.stiebel-eltron.com
1.3 Other symbols in this documentation
Note
General information is identified by the adjacent symbol.
Read these texts carefully.
Symbol Meaning
Material losses
(appliance damage, consequential losses and environmen-
tal pollution)
Appliance disposal
This symbol indicates that you have to do something. The ac-
tion you need to take is described step by step.
1.4 Units of measurement
Note
All measurements are given in mm unless stated oth-
erwise.
1.5 Standardised output data
Explanations to determine and interpret the specified standardised
output data.
1.5.1 Standard: EN 14511
The output data specifically mentioned in text, diagrams and
technical datasheets has been calculated according to the test
conditions of the standard shown in the heading of this section.
Generally, these standardised test conditions will not fully meet
the conditions found at the installation site of the system user.
Depending on the chosen test method and the extent to which
this method deviates from the conditions defined in the norm
shown in the heading of this section, any deviations can have a
considerable impact.
Further factors that have an influence on the test values are the
measuring equipment, the system configuration, the age of the
system and the flow rates.
A confirmation of the specified output data can only be obtained
if the test conducted for this purpose is also performed in ac-
cordance with the conditions defined in the norm shown in the
heading of this section.
2. Safety
2.1 Intended use
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-do-
mestic environment, e.g. in a small business, as long as it is used
in the same way.
Any other use beyond that described shall be deemed inappropri-
ate. Observation of these instructions and of instructions for any
accessories used is also part of the correct use of this appliance.
2.2 General safety instructions
!
WARNING Injury
The appliance may be used by children aged 8 and older
and persons with reduced physical, sensory or mental
capabilities or a lack of experience and know-how, pro-
vided that they are supervised or they have been in-
structed on how to use the appliance safely and have
understood the resulting risks. Children must never play
with the appliance. Children must never clean the ap-
pliance or perform user maintenance unless they are
supervised.
2.3 Test symbols
See type plate on the appliance.
3. Appliance description
3.1 Properties
The appliance is an air source heat pump designed for
use as a heating heat pump. The appliance extracts heat
from the outdoor air at a low temperature level and trans-
fers it to the heating water at a higher temperature level.
The heating water can be heated up to a flow temperature of 60 °C.
The appliance is equipped with an electric emergency/booster
heater (DHC). If the dual mode point is undershot in mono mode
operation, the electric emergency/booster heater is activated to
safeguard heating operation and the provision of high DHW tem-
peratures. In such a case in mono energetic operation, the electric
emergency/booster heater is activated as a booster heater.
This appliance has further operational characteristics:
- Suitable for underfloor and radiator heating.
- Preferred for low temperature heating systems.
- Extracts heat from the outdoor air even at outside tempera-
tures of -20 °C.
- Corrosion-protected, external casing made from hot-dipped
galvanised sheet steel plus stove-enamelled finish.
- Comprises all components and safety equipment required for
operation.
- Filled with non-combustible safety refrigerant.
Note
For centralised control of the heating system, you would
need the WPM heat pump manager.
!
OPERATION
Settings
www.stiebel-eltron.com WPL 10 | 5
3.2 Function
Heat is extracted from the outdoor air via the heat exchanger
(evaporator) on the air side. The refrigerant evaporates and is
compressed by a compressor. This process requires electrical
energy.
The refrigerant is then at a higher temperature level and transfers
the heat drawn from the air to the heating system via an additional
heat exchanger (condenser). During this process, the refrigerant
expands and the cycle begins again.
At air temperatures below approx. 7°C, the humidity in the air
condenses as hoarfrost on the evaporator fins. Any hoarfrost is au-
tomatically defrosted. Water created from this defrosting process
collects in the defrost pan and is drained off via a hose.
In the defrost cycle, the fan is switched OFF and the heat pump
circuit is reversed. The heat required for defrosting is drawn from
the buffer cylinder or heating circuit. The heat pump automatically
reverts to heating mode at the end of the defrost cycle.
Special features of the WPL10IK3
The WPL10IK3 is equipped as standard with the WPM heat pump
manager. It is also equipped with a heating circuit pump, an expansion
vessel and a three-way valve for changeover between the heating circuit
and DHW heating. The standard delivery also includes the air hoses and
their fixing materials.
4. Settings
The system is operated exclusively with the WPM heat pump man-
ager.
Please observe the heat pump manager operating and instal-
lation instructions.
5. Maintenance and care
!
Damage to the appliance and environment pollution
Maintenance work, such as checking the electrical safety,
must only be carried out by a qualified contractor.
Protect the appliance from dust and dirt ingress dur-
ing building work.
A damp cloth is sufficient for cleaning all plastic and sheet metal
parts. Never use abrasive or corrosive cleaning agents.
Every month, check that the condensate drain is working
correctly (visual inspection). When doing so, check whether
water is collecting below or next to the appliance. Observe
the "Troubleshooting" chapter.
We recommend an annual inspection (to establish the current
condition of the system), and service by a contractor if required
(to return the system into its original condition).
6. Troubleshooting
Fault Cause
Remedy
There is no hot
water or the
heating system
stays cold.
No power at the appli-
ance.
Check the fuses/ MCBs in your
fuse box/distribution panel.
If required, reset the MCBs. If
the MCBs trip again after being
reset, notify your contractor.
Water is leaking
from the appli-
ance.
The condensate drain
may be blocked.
Call your contractor to have the
condensate drain cleaned out.
Condensate is
collecting on the
outside of the
appliance or the
air hoses.
The drying out phase of
the building is not yet
complete.
If the room is sufficiently well
ventilated and dehumidified,
this condensate should no
longer form on the appliance ap-
prox.two years after the house
was built.
The relative humidity in
the air is high (≥60%).
A change in weather conditions
should no longer cause conden-
sation to form on the appliance.
The appliance is sited
in a damp room. Damp
rooms are those where
humidity in the air is high
due to the drying of laun-
dry, for example.
Ensure that the room is ade-
quately ventilated and dehumid-
ified. If necessary, hang your
laundry in a different room.
Use a vented tumble dryer.
Please note that condenser
tumble dryers do not reduce the
humidity in the air.
The air hoses are incor-
rectly fitted or poorly
sealed.
Cold air escapes.
Check whether the air hoses
are correctly fitted and sealed.
If necessary, refer to your con-
tractor.
If you cannot remedy the fault, notify your contractor. To facilitate
and speed up your enquiry, please provide the serial number from
the type plate. The type plate is located at the front top, on the
right or left hand side of the casing.
Sample type plate
Montageanweisung beachten! Dichtheit gepft!
Made in Germany
*xxxxxxxxxxxxxxxxxx*
26_03_01_1736
1
1 Number on the type plate
6 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Safety
INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1 General safety instructions
We guarantee the trouble-free function and operational reliabil-
ity only if original accessories and spare parts intended for the
appliance are used.
7.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
8. Appliance description
For outdoor installation the appliance offers additional frost pro-
tection of the heating water pipes. The integral frost protection
circuit starts the heating circuit pump in the heat pump circuit
automatically at +8°C condenser temperature, and thereby en-
sures circulation in all water-filled sections.
The heat pump starts automatically when the temperature in the
heat pump circuit drops below +5°C.
8.1 Standard delivery
8.1.1 WPL 10 I
The following are delivered with the appliance:
- Wiring diagram
8.1.2 WPL 10 IK 3
The following are delivered with the appliance:
- 2 x air hose with fixing materials
- Wiring diagram
8.2 Accessories
Designation
Heat pump manager in wall mounted enclosure, WPMW (WPL10I only)
Pressure hoses SD25 or SD32
Wall duct with external wall grille AWG315SR
Wall duct with external wall grille AWG315GL
Thermally insulated air hose, 4m (WPL10I only)
Hose connection panel
Condensate pump PK10
Cylinder SBP200E
Cylinder SBP400E
Cylinder SBP700E
Heat pump manager in wall mounted enclosure, WPMW (WPL10I only)
Heat pump manager as control panel mounted version, WPMS (WPL10I only)
Mixer module with wall mounting enclosure, MSMW
Designation
Mixer module as control panel mounted version, MSMS
Pressure hose G 1¼” x 1m
Pressure hose G 1¼” x 2 m
Pressure hose G 1¼” x 5 m
Pressure hose G 1¼” x 10 m
Heat pump compact installation WPKI 5
UP kit 25 / 7E (for WPKI5)
Remote control for heating systems FE 7
Contact sensor AVF 6
Immersion sensor TF 6
STB-FB safety temperature controller for underfloor heating
Filter assembly 22 mm (FS-WP 22)
Filter assembly 28 mm (FS-WP 28)
www.stiebel-eltron.com WPL 10 | 7
INSTALLATION
Preparations
9. Preparations
Note
The appliance is designed for internal installation, except
in damp areas.
- Never install on joists.
Never install the appliance directly below or next to living
rooms or bedrooms.
Never direct the air intake and discharge apertures in exter-
nal walls towards neighbouring windows or living rooms/
bedrooms.
Protect pipe transitions through walls and ceilings with an-
ti-vibration insulation.
Note
For details regarding the sound power level, see chapter
"Specification / Data table".
The room in which the appliance is to be installed must meet the
following conditions:
- Free from the risk of frost.
- The room must not be subject to a risk of explosions arising
from dust, gases or vapours.
- When installing the appliance in a boiler room together with
other heating equipment, ensure that the operation of other
heating equipment will not be impaired.
- Minimum volume of the installation room. The minimum
volume of the installation room is assured if the minimum
clearances are observed.
- Load-bearing floor (for the weight of the appliance, see
chapter "Specification / Data table").
For installation on floating screeds, make provisions for a
quiet heat pump operation.
Isolate the mounting surface around the heat pump by a re-
cess. After completing the installation, seal the recess with
a water-impervious and sound insulating material, such as
silicone for example.
1 2 3 54
26_03_01_1466
1 Concrete base
2 Impact sound insulation
3 Floating screed
4 Floor covering
5 Recess
Minimum clearances WPL10I
≥500
≥200
≥600
≥500
≥1000
D0000019289
Minimum clearances WPL10IK3
≥500
≥200
≥500
≥500
≥1000
D0000019298
Maintain the minimum clearances to ensure trouble-free op-
eration of the appliance and facilitate maintenance work.
8 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Installation
9.1 Electrical installation
DANGER Electrocution
Carry out all electrical connection and installation work
in accordance with national and regional regulations.
DANGER Electrocution
The connection to the power supply must be in the form
of a permanent connection. Ensure the appliance can
be separated from the power supply by an isolator that
disconnects all poles with at least 3mm contact separa-
tion. This requirement can be met with contactors, circuit
breakers, fuses/MCBs, etc.
Note
The specified voltage must match the mains voltage. Ob-
serve the type plate.
Install cables with the following cross-sections in accordance with
the respective fuse rating:
MCB/fuse
rating
Assignment Cable cross-section
C 16 A Compressor 2.5 mm²
B 16 A
Electric emergency/
booster heater (BH)
2.5 mm²
1.5 mm² with only two live cores and
routing on a wall or in an electrical con-
duit on a wall.
B 16 A Control cable 1.5 mm²
The electrical data is provided in the "Specification" chapter. For
the WPL10I, you require a J-Y (St) 2x2x0.8mm² electric BUS cable.
!
Material losses
Provide separate fuses/MCBs for the two power circuits,
i.e. for the compressor and the electricemergency/boost-
er heater circuits.
10. Installation
10.1 Transport
Pay attention to the appliance's centre of gravity when trans-
porting the appliance.
- The centre of gravity is in the area where the compressor is
located.
- With the WPL10IK3, ensure that the control fascia is at the
top during transport.
- Lifting slings for handling the standard appliance can be
hooked in anywhere on the bottom of the frame.
Protect the appliance against heavy impact during transport.
- If the appliance needs to be tilted during transport only do so
for a short time on one of its longitudinal sides.
- The longer the appliance is tilted, the greater the distribution
of refrigerant oil in the system.
Wait approximately 30minutes before starting the appliance
after it has been tilted.
10.2 Siting
Remove the packaging film and the top and side EPS
padding.
D0000051813
1
2
1 Appliance foot
2 Sliding block
Undo the four fixing screws underneath the pallet.
Remove the appliance feet from the pack. Fully turn the feet
onto the appliance, without removing the appliance from the
pallet.
Take the appliance off the pallet and set it down on the pre-
pared base. If required, use the sliding blocks provided to
help you position the appliance.
Observe minimum distances (see the "Preparations / Mini-
mum clearances" chapter).
Level the appliance horizontally by adjusting the feet.
10.3 Heating water connection
The heating system to which the heat pump is connected must be
installed by a qualified contractor in accordance with the water
installation diagrams that are part of the technical guides.
In dual mode operation, return water from the second heat gen-
erator may flow through the heat pump. The return water tem-
perature must not exceed 60°C.
Thoroughly flush the pipework before connecting the heat
pump. Foreign bodies, such as rust, sand and sealant, can
impair the operational reliability of the heat pump. We rec-
ommend installing our filter assembly in the heating return
(see chapter "Accessories").
On the WPL10I, connect one flexible pressure hose each to
the heating flow and heating return connections to act as
an anti-vibration mount. The pressure hoses are part of the
standard delivery. Anti-vibration mounts are already fitted to
the WPL10IK3.
Ensure the correct connection of the heating flow and return.
Check for tightness.
When sizing the heating circuit, observe the maximum avail-
able external pressure differential (see the "Specification /
Data table" chapter).
Provide thermal insulation in accordance with applicable
regulations.
www.stiebel-eltron.com WPL 10 | 9
INSTALLATION
Installation
10.4 Oxygen diffusion
!
Material losses
Avoid using open vented heating systems or steel pipe-
work in conjunction with underfloor heating systems with
plastic pipes that are permeable to oxygen.
In open vented heating systems or in underfloor heating systems
with permeable plastic pipes, oxygen diffusion can cause corro-
sion on steel components such as internal cylinders, steel heating
elements or steel pipes.
The products of corrosion, e.g. rusty sludge, can settle inside the
heat pump condenser and reduce its cross-section, resulting in a
lower output or in the high pressure switch triggering a shutdown.
10.5 Filling the heating system
Heating water quality
Carry out a fill water analysis before the system is filled. This may,
for example, be requested by the relevant water supply utility.
!
Material losses
To avoid damage as a result of scaling, it may be neces-
sary to soften or desalinate the fill water. Always observe
the fill water limits specified in the "Specification / Data
table" chapter.
Recheck these limits 8 - 12 weeks after commission-
ing and as part of the annual system service.
Note
With a conductivity >1000μS/cm, desalination treatment
is recommended in order to avoid corrosion.
Note
Suitable appliances for water softening and desalinating,
as well as for charging and flushing heating systems, can
be obtained from trade suppliers.
Note
If you treat the fill water with inhibitors or additives, the
same limits as for desalination apply.
10.6 Venting the heating system
Vent the heating system thoroughly.
10.7 Safety temperature controller for underfloor
heating system
!
Material losses
In order to prevent excessively high flow temperatures in
the underfloor heating system in the event of a fault, we
always recommend using a safety temperature controller
to limit the system temperature.
10.8 Buffer cylinders
10.8.1 Installation with buffer cylinder
A buffer cylinder is recommended to ensure a trouble-free heat
pump operation. The buffer cylinder (cylinder SBP) is not only
installed as an hydraulic separator for volume flow in the heat
pump and heating circuits, but primarily as energy source for
defrosting the evaporator.
If a buffer cylinder is used, remove the jumper across terminals
X4/5 (pump) and X4/8 (HCP) when commissioning the WPL...IK.
Remove return sensor B2 connected to terminals X2/2(B2) and
X2/3(B2) from the sleeve in the heat pump return and insert it
into the buffer cylinder sensor well.
10.8.2 Installation without buffer cylinder
!
Material losses
For operation without a buffer cylinder, set parameter
BUFFER OPERATION in menu SETTINGS / HEATING /
STANDARD SETTING to OFF.
10 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Installation
10.9 Flow rate, heating side
10.9.1 Minimum flow rate for operation without a buffer
cylinder
The appliance is designed in such a way that no buffer cylinder
is required to provide hydraulic separation of the flow in the heat
pump and heating circuits in conjunction with area heating sys-
tems [underoor heating systems, for example].
In an installation with several heating circuits, we recommend
using a low loss header.
The minimum flow rate is set via the temperature differential of
the heating system.
Set the heating circuit pump so that the value is equal to or lower
than the maximum temperature differential.
The setting is made in heat pump operation alone. For this, the
following settings must be made first:
Temporarily remove the fuse from the electric emergency/
booster heater to isolate it from the power supply. Alterna-
tively, switch OFF the second heat generator.
Operate the heat pump in heating mode.
Minimum flow rate with single room control via FE7orFEK
Maximum temperature differential on the heating side with over-
flow valve or single room control with remote control
-15 -10 -5 0 5 10 15 20 25 30
0
2
4
6
8
10
12
14
84_03_01_0156_
X Outside temperature [°C]
Y Maximum temperature differential [K]
In such cases, one or more heating circuits in the heating sys-
tem must remain open. The open heating circuit(s) should be
installed in the lead room (room in which the remote control is
installed, e.g. the living room). Single room control can then be
implemented with the remote control or indirectly by adapting
the heating curve.
Fully open the heating circuit(s) in the lead room.
Close all other heating circuits.
If an overflow valve is installed in the heating system, close
this fully before determining the minimum flow rate.
Make the settings at the circulation pump when the temper-
ature differential between the flow and return temperature
has stabilised.
Set the heating circuit pump so that the minimum flow rate re-
quired to operate the system is safeguarded.
Note
Never adjust the flow rate of the cylinder circuit pump.
The flow rate of the cylinder circuit pump has been op-
timised at the factory.
Compare the resulting temperature differential between the
flow and return at the appliance with the diagram "Maximum
temperature differential on the heating side with overflow
valve or single room control with remote control".
Set the heating circuit pump so that the maximum tempera-
ture differential is achieved or undershot.
10.9.2 Flow rate with low loss header or buffer cylinder
The flow rate can be adjusted using the temperature differential
of the buffer circuit. In this case, the minimum flow rate must not
be undershot.
Maximum temperature differential on the heating side with low
loss header or buffer cylinder
-15 -10 -5 0 5 10 15 20 25 30
0
2
4
6
8
10
12
14
84_03_01_0156_
X Outside temperature [°C]
Y Maximum temperature differential [K]
Make the settings at the circulation pump when the temper-
ature differential between the flow and return temperature
has stabilised.
Compare the resulting temperature differential between the
flow and return at the appliance with the diagram "Maximum
temperature differential on the heating side with low loss
header or buffer cylinder".
Set the delivery head of the heating circuit pump to a level
that safeguards the heating flow rate required to operate the
heat pump (see the "Specification / Data table" chapter).
If the appliance will be used for DHW heating, check the set-
ting of the delivery head in DHW mode.
If necessary, adjust the delivery head to match the heating
circuit pump.
10.9.3 Using highly energy efficient pumps [HE]
If you use a HE pump as the heating circuit pump, you will have to
adjust the minimum flow rate using the temperature differential
of the heating system.
Set the heating circuit pump to ∆p-constant.
Set ∆p-constant to the value at which the maximum temper-
ature differential of the heating system is reached.
www.stiebel-eltron.com WPL 10 | 11
INSTALLATION
Installation
10.10 Condensate drain
At the factory, a hose for draining condensate is fitted
to the defrost pan, which terminates near the knock-out
in the bottom plate to the right of the refrigeration unit.
You can route the condensate hose from the appliance through
openings in the floor plate and frame, to the right or to the front.
D0000052105
Ensure the condensate drain hose is not kinked.
Route the hose with a continuous fall.
Use a suitable condensate pump if there is insufficient fall.
Observe the building characteristics.
If using a condensate pump, ensure that it delivers at least
6 l/min. Set the heat pump approximately 100 mm higher if
condensate pump PK10 is used for draining the condensate.
Heating curve adjustment
Adjust the heating curve carefully, as the heat pump efficiency will
be reduced with an increasing flow temperature. Heating curves
which are set too high, lead to the zone and thermostatic valves
closing, which may lead to the minimum flow rate required for
the heat pump not being achieved.
Procedure for setting the correct heating curve:
Fully open the thermostatic valve(s) or zone valve(s) in the lead
room, e.g. in the living room or bathroom (remove the head of
thermostatic valves) and set the heating curve at different outside
temperatures (e.g. – 10 °C and + 10 °C), so that the required tem-
perature is achieved in the lead room. The thermostatic valve(s)
or zone valve(s) in the lead room should always be fully open (we
recommend that the heating circuit of the lead room is installed
without thermostatic or zone valves and that individual room con-
trol is implemented using a remote control unit).
Standard values to begin with:
Parameter Underfloor
heating
system
Radiator heating system
Heating curve 0.4 0.8
Control response
time
5 15
Room temperature 20 °C 20 °C
Adjust the heating curve as follows:
Increase the room temperature parameter, if the room temper-
ature in spring and autumn is too low (approx. 10 °C outside
temperature). Providing no remote control is installed, this will
lead to a parallel offset of the heating curve. Increase the heating
curve parameter, if the room temperature is not high enough
when outside temperatures are low, then adjust the zone valve
or thermostatic valve to the required temperature.
Never reduce the temperature in the entire building by closing all
zone or thermostatic valves, but by using the setback programs.
10.11 Second heat generator
For dual mode systems, always connect the heat pump into the
return of the second heat generator (e.g. oil boiler).
10.12 Removing the casing parts
The side panels, the front and back panels are hooked into the
heat pump frame and are secured at the centre (bottom) of each
panel respectively with one quick-acting screw. After removing
the quick-acting screw, the casing panels can be pushed up and
removed.
On the WPL10IK3, only the lower casing panels can be removed.
12 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Power supply
11. Power supply
11.1 General
WARNING Electrocution
Before working on the appliance, isolate it from
the power supply at the control panel.
Note
Please observe the heat pump manager operating and
installation instructions.
Connection work must only be carried out by a qualified electrical
contractor in accordance with these instructions.
Permission to connect the appliance may need to be obtained from
your local power supply utility.
Observe the "Preparations / Electrical installation" chapter.
Note
The heating system needs to be filled before making the
electrical connection (see the "Heating water connection"
chapter).
11.2 Electrical connection WPL10I
The terminals are located inside the appliance control panel, be-
hind the front door.
1
D0000051814
1 Control panel
Observe the information in the "Preparations / Electrical in-
stallation" chapter.
Remove the control panel from the casing.
Use appropriate cables in accordance with local regulations.
Check the function of the strain relief fittings.
Connect the heating circuit pump to the heat pump manager
in accordance with the technical guides.
11.3 Electrical connection WPL10IK3
The terminals are located inside the appliance control panel, be-
hind the top door.
2x
D0000052078
Open the top door.
1
D0000051815
1 Control panel
Observe the information in the "Preparations / Electrical in-
stallation" chapter.
Use appropriate cables in accordance with local regulations.
Check the function of the strain relief fittings.
www.stiebel-eltron.com WPL 10 | 13
INSTALLATION
Power supply
D0000051816
X26 (earth)X2NX4PE
X3
PE
X2X4X3PE
WPL 10 I
WPL 10 IK 3
11.4 Connecting compressor and electric
emergency/booster heater
!
Material losses
The compressor must only rotate in one direction. When
the compressor starts and the fault NO POWER appears
in the WPM3i display, change the rotating field by inter-
changing two phases.
Appliance
function
Effect of the electric emergency/booster heater
Mono energet-
ic operation
If the heat pump undershoots the dual mode point, the elec-
tric emergency/booster heater safeguards both the heating
operation and the delivery of high DHW temperatures.
Emergency
mode
Should the heat pump suffer a fault that prevents its contin-
ued operation, the heating output will be covered by the elec-
tric emergency/booster heater.
X3 Compressor (HP)
L1, L2, L3, N, PE
X3 Electric emergency/booster heater (DHC)
L1, L2, L3, N, PE
Connected
load
Terminal assignment
2.6 kW L1 N PE
3.0 kW L2 N PE
3.2 kW L3 N PE
5.6 kW L1 L2 N PE
5.8 kW L1 L3 N PE
6.2 kW L2 L3 N PE
8.8 kW L1 L2 L3 N PE
Cover the mains terminal and seal it when all electric cables
have been connected.
14 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Fitting casing components
11.5 Control voltage connection
X4 Control voltage (control outputs)
KOKP
MKP
Pump
M(A)
M(Z)
HKP
HS2
ZKP
Ext. ST
Collector circuit pump and N, PE
Mixer circuit pump and N, PE
Heating circuit 2 and N, PE
Mixer open
Mixer close
Heating circuit pump and N, PE
Heat generator 2 and N, PE
DHW circulation pump and N, PE
X4 Control voltage (control inputs)
L, N, PE Power supply
EVU Enable signal
!
Material losses
Only connect energy efficient circulation pumps ap-
proved by us.
If energy efficient circulation pumps are used that have
not been approved by us, use a relay with a breaking ca-
pacity of at least 10A/250VAC or our WPM-RBS relay set.
11.6 Low voltage connection
X2 Low voltage
T (buffer) / T (HR) Buffer cylinder sensor / heating return sensor
T (buffer) / T (HR) Buffer cylinder sensor / heating return sensor
T (cool) / TDHW Flow sensor for cooling / lower DHW sensor for
solar connection
T (COLL) Collector sensor for solar connection
0 - 10 V PWM output
T(DHW) DHW cylinder sensor and earth (X26)
T(2.WE) HS2 temperature sensor and earth (X26)
T(A) Outside temperature sensor and earth (X26)
T(MK) Mixer circuit temperature sensor and earth (X26)
Rem.Contr. 1 connection for FE7
Rem.Contr. 3 connection for FE7
H BUS High
L BUS low
BUS earth
+ BUS " + "
12. Fitting casing components
Sealing the appliance
Before fitting the casing parts, seal the appliance by affixing plas-
tic sheets. The plastic sheets are supplied with the casing parts.
26_03_01_1505
Use fabric tape to afx the sheets over the holes at the bot-
tom of the frame on the r.h. and l.h. sides. The fabric tape is
supplied with the “air hose” accessories.
26_03_01_1506
Hang the side sheets with the pre-cut holes onto the hooks
on the appliance.
www.stiebel-eltron.com WPL 10 | 15
INSTALLATION
Fitting air hoses
Remove the backing from the adhesive tape strips on the
frame and on the plastic sheets.
26_03_01_1507
Secure the plastic sheets by pressing them onto the
appliance.
Seal gaps around the hooks with fabric tape.
13. Fitting air hoses
Note
Air hoses guide the intake air to the appliance and route
the discharge air from the appliance outdoors. They are
highly flexible, thermally insulated and self-extinguishing
in case of fire.
13.1 WPL 10 I
The air hose can be extended by turning the hose spirals into
each other. There must be an overlap of approx.30 cm. The total
length of hoses on the air intake and discharge sides must not
exceed 8m.
Never incorporate more than four 90° bends. The radius of
the bends must be at least 600mm, relative to the centre of
the hose.
Cut to size using a sharp knife. The hose spirals can be cut
with wire cutters.
Secure the air hose approx. every1m to prevent it sagging.
Manipulate the ends of the air hoses to fit the oval shape of
the connectors on the cover and the hose connection panels
or wall outlets.
26_03_01_1446
Firstly, push the outer hose slightly upwards.
26_03_01_1447
Push the inner hose halfway down the connector.
26_03_01_1448
Seal the inner hose by affixing it to the connector using the
fabric tape provided.
26_03_01_1449
Place the sealing strip provided around the connector.
16 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Commissioning
26_03_01_1450
Pull the outer hose over the connector.
26_03_01_1452
Secure the hose using the oval hose clip provided and seal it.
Insulating the brickwork
Ensure that no cold bridges form between the brickwork and the
hose connection panels or wall outlets. Cold bridges can result in
condensation forming in the brickwork.
If necessary, fit suitable insulation between the brickwork
and the hose connection panels or wall outlets.
13.2 WPL 10 IK 3
Secure the fully assembled air hoses with the wing nuts (M5)
included in the pack to the heat pump (see Fig. "Dimensions
and connections WPL10IK3").
Use rawl plugs and screws suitable for the wall structure to attach
the wall connecting plates.
14. Commissioning
A qualified contractor must commission the appliance, make all
settings at the commissioning level of the heat pump manager,
and instruct the user.
Commission in accordance with these installation instructions
and the operating and installation instructions of the heat pump
manager. Our customer support can assist with commissioning,
which is a chargeable service.
Where this appliance is intended for commercial use, the rules of
the relevant Health & Safety at Work Act may be applied during
commissioning. For further details, check with your local super-
visory body; in Germany for example, this is theTÜV.
14.1 Checks before commissioning the heat pump
manager
!
Damage to the appliance and environment pollution
Observe the maximum system temperature in underfloor
heating systems.
Check whether the heating system is charged to the correct
pressure and whether the quick-action air vent valve in the
heat pump is open.
Check whether the outside temperature sensor and the re-
turn sensor are correctly placed and connected.
Check whether further sensors are correctly positioned and
connected.
Check whether the power supply is connected correctly.
14.2 Commissioning the heat pump manager
Commission the heat pump manager and make all settings in
accordance with the operating and installation instructions of the
heat pump manager.
14.3 Initial start-up
14.3.1 DIP switch (WP-Typ) on the IWS
(integral heat pump control unit)
Open the control panel.
The IWS is located on the r.h. side.
www.stiebel-eltron.com WPL 10 | 17
INSTALLATION
Shutdown
BA
BA
26_03_01_0921_
3
4
1
2
1 LEDs
2 DIP switch (WP-Typ)
3 Reset button
4 DIP switch (BA)
DIP switch (WP-Typ)
With the DIP switch (WP-Typ), you can set the IWS to suit the
relevant heat pump type.
Factory setting
Compressor mode with electric emergency/booster heater
WP-Typ
26_03_01_1513
Check whether the DIP switch is set correctly.
Compressor mode with external second heat generator
!
Damage to the appliance and environment pollution
In this case, do not connect the electric emergency/boost-
er heater.
If the appliance is operated in dual mode operation with an ex-
ternal second heat generator or as module with a further WPL,
set the DIP switch as follows:
26_03_01_1514
DIP switch (BA) on the IWS
The operating mode of the heat pump is selected with the DIP
switch (BA).
!
Damage to the appliance and environment pollution
The DIP switches must always be set to the OFF position.
The heat pump can only be operated when the switches
are in this position.
BA
26_03_01_1436
Check whether the DIP switch is set correctly.
15. Shutdown
!
Damage to the appliance and environment pollution
Never interrupt the heat pump power supply, even out-
side the heating season. Otherwise, system frost protec-
tion is not guaranteed.
The heat pump manager automatically switches the heat
pump to summer or winter mode.
15.1 Standby mode
To shut down the appliance, simply set the heat pump manager
to "Standby mode". This way the safety functions that protect the
system remain enabled, e.g. frost protection.
15.2 Power interruption
If the system is to be isolated from the power supply permanently,
please observe the following:
!
Material losses
If the heat pump and frost protection are completely
switched off, drain the system on the water side.
16. Appliance handover
Explain the function of the appliance to users and familiarise them
with its operation.
Note
Hand over these operating and installation instructions
to users for safe-keeping.
Always carefully observe all information in these instruc-
tions. They provide information on safety, operation, in-
stallation and maintenance of the appliance.
18 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Troubleshooting
17. Troubleshooting
Note
Please observe the heat pump manager operating and
installation instructions.
Note
The following inspection instructions may only be carried
out by a qualified contractor.
If you cannot locate the fault using the heat pump manager, use
the controls on the IWS.
Open the control panel.
Read the following sections on troubleshooting and carry out
the instructions.
17.1 Controls on the IWS
The IWS helps you to troubleshoot if the fault cannot be identified
using the WPM.
BA
BA
26_03_01_0921_
1
2
1 LEDs
2 Reset button
Red LED (left)
Faults indicated by the LED:
- High pressure fault
- Low pressure fault
- Central fault
- Hardware fault on the IWS (see fault list, operating and in-
stallation instructions of the heat pump manager)
Fault Cause Remedy
The appliance stops and
restarts after the idle pe-
riod has expired. The red
LED flashes.
There is a heat pump
fault.
Check the fault message
on the WPM.
Find the solution in the
WPM instructions (fault
list). Reset the IWS.
Fault Cause Remedy
The appliance stops per-
manently. The red LED is
illuminated steadily.
Five faults have oc-
curred within two
hours of compressor
runtime.
Check the fault message
on the WPM. Find the
solution in the WPM in-
structions (fault list). Reset
the IWS.
Green LED (centre)
The LED flashes during initialisation, and illuminates constantly
after the BUS address has been assigned successfully. Connection
to the WPM has been established.
Green LED (right)
No function.
17.1.1 Reset button
If the IWS was not initialised successfully, you can reset it with this
reset button. Observe the "Reinitialising IWS" chapter in the heat
pump manager operating and installation instructions.
17.2 Fan noise
The heat pump draws heat from the outdoor air. This causes the
outdoor air to cool down. At outside temperatures of 0°C to 8°C,
the air may be cooled to below freezing point. If under these
conditions precipitation occurs in the form of rain or fog, ice may
form on the air grille, the fan blades or the airways. If the fan
comes into contact with this ice, noise develops.
How to remedy rhythmic scratching or grinding noises:
Check whether the condensate drain is clear of obstructions.
Check whether the design output and temperature are set
correctly. Ice formation is particularly pronounced when
high heating output is called for at moderate outside
temperatures.
Carry out a manual defrost, repeatedly if required, until the
fan runs free again.
At outside temperatures above + 1°C, switch the appliance
off for around 1hour or switch it over to emergency mode.
After this, the ice should have melted.
Check whether the appliance is installed in line with the in-
stallation conditions.
If the noises occur frequently, notify customer support.
18. Maintenance
We recommend that you perform an annual inspection (to es-
tablish the current condition of the system), and carry out any
maintenance as required (to return the system into its original
condition).
www.stiebel-eltron.com WPL 10 | 19
INSTALLATION
Specication
19. Specification
19.1 Dimensions and connections WPL10I
1100
22-40
855
85
237
120
143
421
235
280
380
965
760
g01
g02
e02
e01
b01
c11
D0000016747
WPL 10 I
b01 Entry electrical cables
c11 Safety assembly
e01 Heating flow Diameter mm 22
e02 Heating return Diameter mm 22
g01 Air intake Nominal diameter DN 315
g02 Air discharge Nominal diameter DN 315
20 | WPL 10 www.stiebel-eltron.com
INSTALLATION
Specication
19.2 Dimensions and connections WPL10IK3
760
≤800
1640
130
235
1365
22-40
1818
380
74
279
237
≥300
383
120
15
c11
g01
g02
e02
e01
b01
873
e22
D0000016751
WPL 10 IK 3
b01 Entry electrical cables
c11 Safety assembly
e01 Heating flow Diameter mm 22
e02 Heating return Diameter mm 22
e22 Cylinder flow Diameter mm 22
g01 Air intake Nominal diameter DN 315
g02 Air discharge Nominal diameter DN 315
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28

STIEBEL ELTRON WPL 10 I Operation Instruction

Category
Oxygen Equipment
Type
Operation Instruction
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI