STIEBEL ELTRON WWK 300 AH Instruction Manual

OperatiOn and installatiOn
dHW Heat pump
» WWK 300 a
» WWK 300 ap
» WWK 300 aH
» WWK 300 aHp
280010-36039-8627 WWK 300 AHP en_AU.indb 1 24.01.2011 13:36:31

2
Note: Carefully read these operating and
installation instructions and keep them
safe. Should the equipment change hands, pass
these instructions to the subsequent owner. Pass
them to the trained contractors for servicing
purposes.
Positioning, installation and commissioning must
be carried out by trained personnel working in
accordance with these operating and installation
instructions.
Symbols used in these instructions
Observe the following safety instructions:
!Please note: Warning about possible
dangers.
Note: Important information and tips.
Contents
1. Operating instructions for users and
contractors �����������������������������������3
1.1 Operation and control ������������������������� 3
1.2 Device description ����������������������������� 3
1.3 Correct operation ������������������������������ 3
1.4 Incorrect operation ���������������������������� 3
1.5 Function description ��������������������������� 3
1.6 Operation with active defrost feature
WWK 300 A and WWK 300 AH ���������������3
1.7 Operation with passive defrost feature
WWK300AP and WWK300AHP ������������ 3
2. Installation instructions for contractors ���5
2.1 Regulations and standards ������������������� 5
2.2 Installation ��������������������������������������6
2.3 Water connection ������������������������������6
2.4 Power supply �����������������������������������7
2.5 Commissioning ���������������������������������8
2.6 Safety equipment and maintenance �������� 9
2.7 Specification ���������������������������������� 15
Where children or persons with limited physical,
sensory or mental capabilities are to be allowed
to control this equipment ensure that this will only
happen under supervision or after appropriate
instructions by a person responsible for their
safety. Children should be supervised to ensure
that they do not play with the equipment.
Warranty 16
Environment and Recycling 16
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1.1 Operation and control
The Stiebel Eltron domestic hot water
heat pump WWK300A/AP/AH/AHP
(DHW) is a DHW generator that operates
automatically and has a capacity of
approx. 300l. The water temperature is
permanently set to 60°C.
The device is installed, connected and
handed over ready for use by a qualified
contractor. Nevertheless, you should
familiarise yourself with the most
important technical features of your heat
pump.
1.2 Device description
The device extracts heat from the ambient
air.
This energy is used to heat the water
inside the cylinder. Where the device is
installed inside a room, this is cooled
down through the heat extraction
by approx. 1 to 3°C. The device also
extracts moisture from the ambient air
that creates condensate, which must
be drained off. For this purpose, a
condensate drain is integrated into the
unit.
Special features of the WWK 300 AH and
WWK 300 AHP
An electric booster heater is integrated for
heating approx. 100 litres of water in the
upper sector of the DHW cylinder.
1.3 Correct operation
The DHW heat pump is designed for
extracting heat from the ambient air and
the utilisation of that energy for heating
domestic hot water. The DHW heat pump
can be installed in the open as well as in
enclosed spaces.
1.4 Incorrect operation
The following are not permitted:
—The utilisation of greasy extract air.
—The heating of liquids other than
domestic hot water.
—The installation of the equipment:
a) in rooms where the temperature is
below the freezing point.
b) in rooms where the device is at risk
from explosions as a result of dust,
gases or vapours.
—Operation of the device with an empty
cylinder.
1.5 Function description
Heat pump operation
This is the standard operating mode,
to which the limits of scope of the heat
pump apply (see: Specification). To
heat up the cylinder capacity of approx.
300litres of water in accordance with
EN255 part 3 to 60 °C, the WWK300A
requires:
τHeat-up ϑRoom Frel ϑCold water COP (t)
WWK 300 A/AP
10.1 h 15 °C 70 % 15 °C 3.19/3.3
5 h 42 °C 70 % 15 °C 5.61
!If the heat pump is switched OFF
and ON again, for instance after a
power failure, the compressor will only
re-start (after approx. 3 minutes), when
the pressure inside the refrigerant
circuit has normalised again.
Electric booster heater (only for the WWK
300 AH and WWK 300 AHP)
If there is a higher DHW demand or
the WWK was switched OFF because
you require hot water quickly, you can
accelerate the heat-up process by means
of the electric booster heater. For reasons
of saving energy, the electric booster
heater will only heat up approx. 100litres
of water in the upper section of the
cylinder.
The control thermostat of the electric
booster heater is preset to 60°C and will
be restarted when the DHW temperature
falls below 45°C. This safeguards not only
that primarily the heat pump provides hot
water, but also that you enjoy a high level
of DHW convenience when large amounts
of hot water are drawn.
The red ON indicator illuminates when
the electric booster heater is switched on.
1
26�03�01�1610
1 Red indicator
1.6 Operation with active
defrost feature
WWK 300 A and WWK 300 AH
Subject to the relative humidity and the
DHW temperature, the evaporator begins
to build up hoar frost at an ambient
temperature of below 6°C.
If the evaporator is covered in hoar
frost, the frost monitor N2 (see wiring
diagram Fig.7 and 9) switches the fan
OFF, whilst the compressor continues to
run, and the changeover valveV2 routes
the hot gas directly to the evaporator.
For this, the condenser is shut off by
changeover valveV1 (see Fig.5). When
the temperature at the evaporator fins
rises above 3°C, the fan is started again,
and DHW heating continues.
The DHW heat pump can be operated at
ambient temperatures as low as 0°C.
The evaporator is defrosted according to
demand in the temperature range 0°C to
+6°C. This extends the heat-up time.
Ambient temperature
!The heat pump must not be
installed in areas where ambient
temperatures frequently exceed 42°C
or areas where temperatures frequently
drop below 0°C
1.7 Operation with passive
defrost feature
WWK300AP and WWK300AHP
The limit of application of the WWKAP /
AHP (without hot gas defrost feature) is
set to 6°C.
However, with this limit of application,
the evaporator may build up hoar frost
subject to air temperature and relative
humidity, particularly when the DHW
temperature is low. The compressor
will be switched OFF as soon as the
evaporation temperature lies below
-7°C for any length of time. When the
temperature at the evaporator fins rises
above 3°C, the compressor are started
again, and the DHW heating continues.
Ambient temperature
!The heat pump must not be installed
in areas where ambient tempera-
tures frequently exceed 42°C or areas where
temperatures frequently drop below 6°C.
!Always operate the unit with a full
water tank, otherwise high pressu-
res will develop in the refrigeration system,
causing it to shut down. A manual reset will
be necessary afterwards to restart the unit.
1. Operating instructions for users and contractors
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1.8 Maintenance and cleaning
The device is generally maintenance
free, with the exception of cleaning the
condensate drain.
A damp cloth is sufficient for cleaning
all plastic parts. Never use scouring or
solvent-based cleaning agents.
!Please note: Maintenance work,
e.g. checking the electrical safety,
must only be carried out by a qualified
contractor.
zCheck the condensate drain at least
monthly at the bottom outlet and at
the top condensate pan drain (visual
check, see Fig.3 and Fig.4, pos.15).
Remove contaminants and blockages
immediately.
zFor the WWK300AH and
WWK300AHP, it is recommended
that the electric booster heater be
descaled from time to time. This will
result in prolonged life fo the electric
booster.
zYour local contractor, who is familiar
with the local water quality, should
identify for you the timing of the next
service.
zAsk your local contractor to regularly
check the safety assembly and the
electric booster heater.
zThe device is subject to mains water
pressure. The expansion water drips
from the safety valve during heat-up.
Inform your local contractor of water
drips from the system after the heat-
up process has ended.
zTo protect the steel cylinder against
corrosion, the interior is coated with
a special enamel and is furthermore
equipped with a protective anode.
Ask your local contractor to check the
protective anode regularly.
1.9 Troubleshooting by the user
No hot water
Should you fail to obtain hot water at any
time, you can take the following steps to
remedy that situation.
No electrical power
Check the fuse/circuit breaker in your fuse
box. If it has blown/tripped, replace/reset
the fuse/MCB. If it should blow/trigger
repeatedly, notify your local contractor.
Still no hot water, even though power is
available
Check, whether the air inlet/outlet is
blocked.
The thermoswitch trips out or the high
limit safety pressure limiter switches
the compressor OFF if the compressor
is overloaded due to excessive ambient
temperature or excessive air temperature
(>42°C), or because of a fault in the
refrigerant circuit. Ask your local
contractor to remove the fault.
After a short cooldown phase, the
thermoswitch will restart the compressor
automatically.
!The high limit safety pressure
limiter must only be reset by your
contractor after he has removed the
cause of the relevant fault.
Other issues
Safety valve of the cold water supply line
drips
This may occur during the heat-up phase
and is completely normal.
The condensate drain drips
This always happens when the surface
temperature of the evaporator is lower
than the ambient dew point temperature.
For all other faults, consult your
contractor.
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1840
1695
1265
195
22-60
DHW
Cold Water
48°
30°
670
2.1 Regulations and standards
zThe installation (water and electrical
work) and commissioning, as well as
the maintenance of this equipment,
must only be carried out by an
authorised qualified contractor in
accordance with these instructions.
zPerfect function and safe operation
can only be assured when using
original accessories and spare parts
intended for this equipment.
zDIN VDE 0100 / DIN VDE 0701
zRegulations of your local electricity
supply utility.
zDIN 1988 / DIN 4109
zRegulations of your local water supply
utility.
Fig. 1
2. Installation instructions for contractors
The following standards were taken into
account:
AS 4234, AS 3498, AS 4020, AS 1056.1
AS/NZS 2712, AS/NZS 3350.2.40/30/30.2
IEC 60335-1-2-40, IEC 61000-3-2; 1995
IEC 61000-3-3, IEC 55014-1 IEC 55014-2
EMC Directive 89/336/EEC
EN255T3
1 Cold water supply R1“
(3/4“ female with adapter)
2 Hot water connection R1“
(3/4“ female with adapter)
3 Condensate drain ¾“hose
connection (20mm male)
4 Connection for P&T relief valve R¾ (on-site)
5 Electrical cable (without plug)
6 Drain valve (on-site)
7 Expansion control valve (if required*, on-site)
8 Straight-through shut-off valve (on-site)
9 Pressure gauge test connector ** (on-site)
10 Non-return valve (on-site)
11 Test valve connection **
12 Pressure reducing valve (on-site)
13 Condensate spillover
Dimensions in mm
Connection dimensions and variations
26�03�01�1617
Also observe the following:
zThe equipment type plate
zThe specification
zWater installation
—Observe the AS/NZS 3500. [local
regulations].
—Material of the cold water line:
Steel, copper or plastic pipe
systems.
—Material of the hot water line:
Copper or plastic pipe systems.
* Not all local regulations mandate the use of an
expansion control valve (ECV).
** Optional, depending on installation requiments
10 12
11
68
9
8
7
3
1
2
5
4
5
3
13
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2.2 Installation
Transport
To protect the equipment against
damage, it must be transported vertically
inside its dedicated packaging. Where
space is restricted, you may also briefly
move the equipment tipped backwards at
an angle.
Positioning
—Position the device in the installation
location.
Note: Ensure that the casing
panel in the lower area of
the device is not damaged during
positioning.
—Remove packing straps and
polystyrene mouldings.
—Level the device by adjusting the
equipment feet.
—After leveling the device fix the nut of
the rubber feet to provide a maximum
of structural safety.
External installation
The location where the WWK is to be
installed must meet the following
conditions:
—Load-bearing floor (wet weight of the
WWK approx. 430kg).
—Never operate the WWK in rooms at a
risk from explosion due to dust, gases
or vapours.
—It is prefferred that the location of
the unit is not near a bedroom or
a neighbour´s bedroom. Ideally a
unit may mounted near a kitchen
or laundry. Opposite a neighbours
garage is always prefferred.
—The water heater should be located
as close as possible to the most
frequently used hot water tap
connection.
—Ensure that the data plate is clearly
visible.
—Ensure that the ambient temperature
lies within the application limits for
heat pump operation.
Internal installation
The room where the WWK is to be
installed must meet the following
conditions:
—Load-bearing floor (wet weight of the
WWK approx. 430kg).
—Never operate the WWK in rooms at a
risk from explosion due to dust, gases
or vapours.
—Include in your considerations the
utilisation of waste heat, for example
from a boiler, tumble drier or
refrigerator/freezer.
—The available floor area in the
installation room must be at least
6 m². Never install this equipment
in rooms with a volume of less than
13 m³.
—Never restrict the clearances of the
WWK through walls and ceilings
further than illustrated in Fig.2.
—The room temperature must never fall
below 0°C, as the ambient tempera-
ture will be reduced by approx. 1-3°C
through the heat pump operation. The
initial temperature is reached again
approx. ½ h after the heat pump has
been switched OFF.
When installing the heat pump in a boiler
room, ensure that the boiler operation
will not be impaired.
2.3 Water connection
—Remove the protective caps from the
connectors.
—With a sharp knife, cut a hole into the
protective caps and invert over the
pipe to be connected.
—Connect the pipe and refit the
protective caps.
!Please note: To protect against
the risk of corrosion, make the
connection as flat packing seal. The
use of hemp on connections is not
acceptable.
Air Air
Dimensions in mm
26�03�01�1619�
3
12
1 Condensate drain
2 Hot water connection
3 Condensate spillover
Insulate the DHW line in accordance with
local regulations.
Accurately maintain the order of fittings
on the cold water side (see Fig.1).
Flush the line prior to installation.
Install a drain valve at the lowest point
of the cold water supply inlet for future
maintenance of the tank.
Install a 700kPa pressure and tempera-
ture relief valve (PTRV) (Fig.1, pos.4).
Observe the requirements for expansion
control valve (ECV) (Fig.1, pos.7). In such
case, use a 550kPa valve.
A pressure reduction valve (PRV) must
be fitted (Fig.1, pos12) and adjusted to
a maximum of 500 kPa. If the ECV is re-
quired, set PRV to a maximum of 420kPa.
Please observe the following:
—Supply and drain pipe sizes should be
equal to safety valve sizes.
—Size the drain so that water can drain
off, even if the safety valve has been
fully opened.
—The drain outlet must not be able to
be closed and must always remain
open to atmosphere.
Fig. 2
Positioning
26�03�01�1618
≥ 400
≥ 400
≥ 400
≥ 100
670
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11
10
4
6
3
1
18
17
16
14 13 12
8
7
15
9
5
2
WWK 300 A/WWK 300 AH:
Condensate drain
The device is designed so that, if it is in-
stalled externally, the condensate through
a suitable drain hose can freely drain
away. However, the condensate can also
(in case of internal installation or local
regulations) be routed away, to a garden
bed, a drain in the floor or a wall drain.
Note: Never kink the hose, to
ensure the condensate drains
perfectly.
If required install a condensate pump.
2.4 Power supply
Only qualified electricians must carry out
the installation in accordance with these
instructions.
!Please note: Before any work,
isolate the equipment from the
power supply at the control panel.
Observe VDE 0100 [or local regulations]
and the regulations of your local power
supply utility.
The appliance is intended to be
permanently connected to fixed wiring.
For the connection to the power supply
the fitted supply cord has to be used.
(Fig.3 and 4, pos.2)
Fig. 3
1 Capacitor
2 Electrical cable
3 Strain relief
4 Power terminals
5 Frost monitor
6 Heat pump control thermostat
7 Ventilator
8 Heat pump terminal
9 Control thermostat, electric booster heater, not shown,
points at place (only for the WWK 300 AH)
10 High limit safety cut-out Electric booster heater
(only for the WWK 300 AH)
11 Electric booster heater (only for the WWK 300 AH)
12 Protective anode
13 Solenoid valve V1
14 Safety high pressure limit
15 Condensate pan drain
16 Compressor
17 Compressor motor protection (Klixon)
18 Solenoid valve V2
The DHW heat pump must be able to
be separated from the mains power
supply by an additional isolator, which
disconnects all poles with at least 3 mm
contact separation. For this purpose, use
contactors, mains isolators, fuses, etc. on
site.
Terminals are located inside the control
panel and become accessible by removing
the equipment lid and the cover of the
wiring chamber).
26�03�01�1403
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Fig. 4
1 Capacitor
2 Electrical cable
3 Strain relief
4 Power terminals
5 Frost monitor
6 Heat pump control thermostat
7 Ventilator
8 Heat pump terminal
9 Control thermostat, electric booster heater, not shown,
points at place (only for the WWK300AHP)
10 High limit safety cut-out Electric booster heater
(only for the WWK300AHP)
11 Electric booster heater (only for the WWK300AHP)
12 Protective anode
14 Safety high pressure limit
15 Condensate pan drain
16 Compressor
17 Compressor motor protection (Klixon)
2.5 Commissioning
Only approved contractors may
commission this equipment and instruct
the owner in its use.
Commissioning
—Fill, vent and thoroughly flush the
device.
—Check the safety assembly.
Inform the user that water may drip
from the safety valve whilst the water
is being heated up.
—Switch ON the power supply
Note:
—Never operate the equipment outside
the temperature range 0°C to + 42°C.
At temperatures below - 10°C (e.g.
transport/storage), the safety temperature
cut-out may respond. Press the reset
button after the temperature is much
higher than -10°C (Fig. 3 and 4, pos. 10).
11
10
4
6
3
1
17
16
14
12
8
7
15
9
5
2
WWK 300 AP/WWK 300 AHP:
26�03�01�1402
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2.6 Safety equipment and
maintenance
Only qualified contractors must carry out
the installation in accordance with these
instructions.
On the equipment
In case of a fault, the safety equipment
of the WWK 300 interrupts the relevant
power circuit.
!Please note: Before any work on
the equipment, disconnect all
poles from the mains.
High limit safety cut-out (STB) electric
booster heater
Equipment with electric booster heater
is stopped if the DHW temperature
exceeds95°C.
When the source of the fault has been
removed, reset the high limit safety cut-
out by pressing the reset button (Fig. 3
and 4, pos.10).
The heat pump top cover should be
opened for access to this device as shown
in Fig.3 and Fig.4.
Safety high pressure limiter (SDBK)
The safety high pressure limiter shuts
down the compressor, if the pressure
inside the refrigerant circuit exceeds the
permissible maximum value. The safety
high pressure limiter may also respond,
if the appliance is operated above its
permissible limit (>42°C air temperature)
or the control thermostat of the heat
pump fails to respond. Reset the high
pressure limit safety cut-out by pressing
the reset button (Fig.3 and 4, pos.14),
after the cause of the fault has been
removed.
Protective motor thermoswitch
The protective motor switch will shut
down the compressor, if it is overloaded
because of excessive thermal load.
Remove the relevant fault. After a
short cool-down phase, the protective
motor switch restarts the compressor
automatically.
Protective anode
An anode for the protection of the DHW
cylinder is inserted centrally from the top
into the DHW ccylinder of the appliance
(Fig.3 and 4, pos. 12). The anode fitted at
the factory (anode rod) is approximately
1.26 m long.
Replace the anode with a new one if the
installed one has been consumed. When
installing the anode, ensure that the
metallic conductor connection is correctly
made. It’s recommended for first anode
inspection to happen one year after
installation.
Consult with your water specialist, or
contractor, for the optimum timing for
inspections thereafter. Should it be
impossible to insert a rod anode, you may
have a sectional anode installed instead.
In areas where total dissolved solids
(TDS) in the water is outside the range
40-400 mg/l, the magnesium alloy anode
supplied, M2, must be replaced. Use a
high potential, M1, anode if TDS<40
or an aluminium A5 alloy anode if
TDS>400, before installing the unit.
Cleaning the evaporator
Maintaining the full output of the WWK
300 requires an occasional professional
cleaning of the evaporator. Clean the
evaporator only with water and a brush.
Never use acidic or alkaline cleaning
solutions.
WARNING Injury risk
The evaporator has many
sharp-edged fins. When
cleaning the evaporator,
proceed with caution and
wear protective clothing, in
particular safety gloves.
Further information regarding the
equipment:
zDescaling (only if a booster heater is
installed)
—Close the shut-off valve in the cold
water supply to the tank.
—Draw water from the tank to
relieve the pressure inside the
appliance.
—Unscrew the booster heater flange.
To undo the flanged immersion
heater, you require a 1½“ pipe
wrench. The pipe wrench must be
hollow so it can be guided over the
connecting cables.
—Immerse scaled sections of the
heater rod into a descaling liquid
(for example citric acid), until the
limescale has dissolved from the
heater rod.
—Flush the descaling liquid off and
allow the immersion heater to dry.
z Draining the cylinder:
—Close the shut-off valve in the cold
water supply.
—Fully open the hot taps at all draw-
off points.
—The cylinder is drained via the
cold water inlet line. Open the
drain valve (fig. 1, pos. 6). If no
drain valve was installed, undo the
fitting on the cold water supply
of the appliance. Residual water
remains in the lower part of the
cylinder.
Note: Hot water can be expelled
during draining.
On the system
Safety valve (on-site)
This valve opens when the water pressure
exceeds the preset value of 0.6MPa
(6 bar) thereby relieving the pressure. It is
adjusted so that no water will be expelled
when heating is switched OFF. Should it
continue to drip excessively, either the
valve seat has become contaminated, the
water pressure is too high or the pressure
reducing valve has become faulty.
Pressure reducing valve (on-site
provision)
Check the valve for perfect function.
Replace it, if required.
Regular valve maintenance
Safety requires that valves are regularly
checked for perfect function. For this,
regularly vent the safety valve until a full
stream of water flows from it. Close the
safety valve after checking.
How quickly limescale builds up depends
on the local water quality.
As your local contractor is familiar
with your local water quality, let him
determine the timing of this check.
!
WARNING
If the hot water unit is not used
for two or more weeks, an amount of
highly flammable hydrogen gas may
accumulate in the water tank. To dissi-
pate this gas safely, it is recommended
that a hot tap be turned on for several
minutes or until discharge of gas ceas-
es. Use a sink, basin or bath outlet, but
not a dishwasher, clothes washer or
other appliance. During this procedure,
there must be no smoking, open flame
or any electrical appliance operat-
ing nearby. If hydrogen is discharged
through the tap, it will probably make
an unusual sound as with air escaping.
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10
WWK 300 A Kältekreis Schemata
Heizbetrieb
Valve powered
Valve not powered = closed
PC
P0
>P
TC
VLuft
TKW
TWW
V1 V2
Abtaubetrieb
V1
Valve powered
Valve not powered = closed
PC
P0
>P
TC
TKW
TWW
V2
Operation with active defrost feature WWK 300 A and WWK 300 AH
Heating operation Defrost operation
26�03�01�0755
C26�03�01�0754
Fig. 5
Refrigerant circuit layout with passive defrost feature WWK 300 AP and WWK 300 AHP
Fig. 6
WWK 300 AP Kältekreis Schemata
P
C
>P
TC
VLuft
T
KW
T
WW
P
0
26�03�01�0764
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11
Fig. 7
Wiring diagram WWK 300 A
F2 Compressor motor protection (Klixon)
F3 High limit safety cut-out
M1 Compressor
M2 Fan
N0 Heat pump control thermostat
N2 Frost monitor
V1 Solenoid valve
V2 Solenoid valve
X0 Power terminals
X1 Heat pump terminals
X2 Anode terminal earth
Z1 Capacitor
26�03�01�0759
280888-34727
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12
Fig. 8
Wiring diagram WWK 300 AP
F2 Compressor motor protection (Klixon)
F3 High limit safety cut-out
M1 Compressor
M2 Fan
N0 Heat pump control thermostat
N2 Frost monitor
X0 Power terminals
X1 Heat pump terminals
X2 Anode terminal earth
Z1 Capacitor
26�03�01�0918
284101-34727
280010-36039-8627 WWK 300 AHP en_AU.indb 12 24.01.2011 13:36:54

13
N1 Control thermostat, electric booster heater
N2 Frost monitor
V1 Solenoid valve
V2 Solenoid valve
X0 Power terminals
X1 Heat pump terminals
X2 Anode terminal earth
X3 Ground electric heating element
Z1 Capacitor
26�03�01�0760
Wiring diagram WWK 300 AH
E1 Electric booster heater
F1 High limit safety cut-out
Electric booster heater
F2 Compressor motor protection (Klixon)
F3 Safety pressure limiter Heat pump
H1 Signallamp electric booster heater
M1 Compressor
M2 Fan
N0 Heat pump control thermostat
Fig. 9
X0 NLPE
T <
-7 °C / +3 °C
3
X1
N0
N2
2
3
4
5
6
7
8
9
10
11
13
14
1
42
T >
42
S
C
R
Z1
M1
F2
43
2
1
X2
1
M
M2 ~
V1 V2
F3
P >
22,4 bar
1
NLPE
3 x 1,5
2 1
2 1
T
T>
12 11
22
32
21
31
11
21
31
12
22
32
1,55KW
N1F1E1
X3
H1
A1
A3
280010-36039-8627 WWK 300 AHP en_AU.indb 13 24.01.2011 13:36:54

14
N0 Heat pump control thermostat
N1 Control thermostat, electric booster heater
N2 Frost monitor
X0 Power terminals
X1 Heat pump terminals
X2 Anode terminal earth
X3 Ground electric heating element
Z1 Capacitor
26�03�01�0919
Wiring diagram WWK 300 AHP
E1 Electric booster heater
F1 High limit safety cut-out
Electric booster heater
F2 Compressor motor protection (Klixon)
F3 Safety pressure limiter Heat pump
H1 Signallamp electric booster heater
M1 Compressor
M2 Fan
Fig. 10
X0
NLPE
T < 3
X1
N0
N2
2
3
4
5
6
7
8
9
10
11
13
14
1
42
T >
42
S
C
R
Z1
M1
F2
4
3
2
1
X2
1
M
M2
~
F3
P >
22,4 bar
1
NLPE
3 x 1,5
bl br
bl br
T
T>
12 11
22
32
21
31
11
21
31
12
22
32
1,55KW
N1F1E1
X3
gnge
gnge
gnge
gnge
gnge
H1
A1
A3
-7 °C / +3 °C
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15
2.7 Specification
WWK 300 ap WWK 300 aH WWK 300 a WWK 300 aHp
227069 227070 222422 227071
Outputs to EN 14511
Heating output L15/F70/W55 kW 1.7 1.7 1.7 1.7
Power consumptions to EN 14511
Power consumption - booster heater kW 1.69 1.69
Power consumption L15/F70/W55 kW 0.5 0.5 0.5 0.5
Coefficients of performance to EN 14511
Coefficient of performance L15/F70/W55
(EN 14511)
3.5 3.4 3.4 3.5
Sound data
Sound pressure level at 1 m distance in a
free field
dB(A) 56 56 56 56
Sound power level (EN 12102) dB(A) 64 64 64 64
Electrical
Fuses A C 10 C 10 C 10 C 10
Rated voltage V 240 240 240 240
Phases 1/N/PE 1/N/PE 1/N/PE 1/N/PE
Frequency Hz 50 50 50 50
Power consumption kW 0.7 2.25 0.7 2.25
Max. power consumption kW 0.7 2.25 0.7 2.25
Rated current A 2.5 2.5 2.5 2.5
Versions
IP-Rating IP24 IP24 IP24 IP24
Refrigerant R134A R134A R134A R134A
Dimensions
Height mm 1903 1903 1903 1903
Diameter mm 660 660 660 660
Height of unit when tilted mm 1990 1990 1990 1990
Height when tilted incl. packaging mm 2200 2200 2200 2200
Cylinder capacity l 303 303 303 303
Weights
Weight (dry) kg 125 130 125 130
Weight (wet) kg 428 432 428 432
Connections
Condensate drain G 3/4 G 3/4 G 3/4 G 3/4
Water connection R 1“ (R 3/4“ female
with adaptor)
R 1“ (R 3/4“ female
with adaptor)
R 1“ (R 3/4“ female
with adaptor)
R 1“ (R 3/4“ female
with adaptor)
Values
Lower air temperature limit °C 6 0 0 6
Upper air temperature limit °C 42 42 42 42
Max. DHW temperature °C 60 60 60 60
HP DHW temperature °C 60 60 60 60
Air flow rate m³/h 550 550 550 550
Refrigerant capacity kg 0.9 0.9 0.9 0.9
Permissible operating pressure - DHW kPa 700 700 700 700
Accessories
Type Part Number Description
PK10 229286 Condensate pump
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16
WARRANTY
For guarantees please refer to the respective terms and conditions of
supply for your country.
The installation, electrical connection and first operation of this
appliance should be carried out by a qualified installer.
The company does not accept liability for failure of any
goods supplied which have not been installed and operated
inaccordance with the manufacturer‘s instructions.
WARRANTY - Australia only
Stiebel Eltron (Aust) Pty Ltd warrants the domestic range of heat pump
water heaters (WWK300 and WWK300 A) to be free from defects in mate-
rial and workmanship under normal use and service in accordance with
the following terms:
1. Repair or if necessary replace the water heater, or
2. Replace any component which falls within the warranty period as
specified below (subject to the conditions and exclusions thereafter
referred to)
• 5 years for the cylinder and condenser
• 2 years for the sealed refrigeration system, including compres-
sor, evaporator, valves and associated pipe work.
• 1 year for all other componentry (electrical)
The above shall not apply to such water heaters or part thereof which,
in our opinion, have been subject to any accident, alteration, abuse or
misuse or have suffered any damage by flood, fire or act of God, or if
any repairs have been made or attempted to be made by any person or
persons not approved by us. The warranties shall not extend to any loss
suffered by, or resulting from, the non-operation of the water heater or
part thereof.
Major components (tank & refrigeration system) may carry additional
warranty for units that are installed under some state and council re-
bate schemes applicable to solar and heat pump water heaters. In such
cases, the installation must strictly comply with all conditions and re-
quirements set forth in the scheme for which a rebate is claimed. Please
contact us for more information.
We will not incur any obligation or liability whatsoever under the war-
ranties for any damage or harm which may arise directly or indirectly
as a result of the water heater being installed by other than registered
qualified plumbers or being connected to a water or power supply not
in accordance with the regulations of the relevant electric, water and
health authorities.
The following items are specifically excluded from the normal terms
of warranty.
1. Damage as the result of transportation, removal, or storage.
2. Damage or faulty operation due to adverse water conditions and/or
proper precautions not having been followed:
- Inappropriate anode or replacement regime used
- If water is highly conductive or of high mineral content with a
TDS> 2500 mg/L
-If the Langelier Saturation Index (LSI) of the water is outside
the range -1.0 < LSI < 0.8*
* The LSI is a numeric value indicating whether water is scale forming or
corrosive. It factors in pH, Total Alkalinity, Calcium Hardness and water tem-
perature.
-If the unit is used with bores, dams or swimming pool water
3. Damage or faulty operation due to foreign matter in the water sup-
ply, incorrect installation (eg. air flow restricted) or faulty equip-
ment used (eg. damaged valves).
Not withstanding anything contained herein, the units shall continue to
be subject to any implied warranty provided by the Trade Practices Act
1974 (as amended) if and to the extent, that said Act is applicable and
prevents the exclusion, restriction or modification of that warranty.
This free service will apply, in principle, to metropolitan and other ac-
cessible areas. If the unit is located in a remote area an extra service
charge may be applicable due to travel.
Service costs by others are not covered by the Warranty and are at the
user’s expense. In the event of any claim being made under the war-
ranty, it is the original purchaser's responsibility to provide evidence of
purchase and date of purchase.
A nominal service charge may be made should the appliance be found
to be in normal working condition and the problem located elsewhere.
STIEBEL ELTRON (AUST) PTY LTD
Unit 4, 8 Rocklea DrivePort Melbourne, VIC, 3207
PH: 1800 153 351 - Fax: [phone]
ENVIRONMENT AND RECYCLING
Please help us to protect the environment by disposing of the
packaging in accordance with the national regulations for waste
processing.
KYOTO | R134a
This device is lled with refrigerant R134a.
Refrigerant R134a is a CFC greenhouse gas mentioned in the Kyoto
protocol with a global greenhouse potential (GWP) = 1300.
Never release refrigerant R134a to atmosphere.
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280010-36039-8627 WWK 300 AHP en_AU.indb 19 24.01.2011 13:36:55

Austria
STIEBEL ELTRON Ges.m.b.H.
Eferdinger Str. 73 | 4600 Wels
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.at
Belgium
STIEBEL ELTRON Sprl/Pvba
't Hofveld 6 - D1 | 1702 Groot-Bijgaarden
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.be
Czech Republik
STIEBEL ELTRON spol. s.r.o.
K Hájům 946 | 15500 Praha 5-Stodůlky
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.cz
Denmark
PETTINAROLI A/S
Mandal Allé 21 | 5500 Middelfart
Tel. [phone] | Fax [phone]
[e-mail]
www.pettinaroli.dk
Finland
Insinööritoimisto Olli Andersson Oy
Keskuskatu 8 | 04600 Mäntsälä
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.fi
France
STIEBEL ELTRON S.A.S.
7-9 rue des Selliers
B.P. 85107 | 57073 Metz-Cédex 3
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.fr
Great Britain
STIEBEL ELTRON UK Ltd.
Unit 12 Stadium Court | Stadium Road
Bromborough | Wirral | CH62 3RP
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.co.uk
Hungary
STIEBEL ELTRON Kft.
Pacsirtamező u. 41 | 1036 Budapest
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.hu
Japan
Nihon Stiebel Co. Ltd.
Ebara building 3F | 2-9-3 Hamamatsu-cho
Minato-ku | Tokyo 105-0013
Tel. [phone] | Fax [phone]
[e-mail]
Netherlands
STIEBEL ELTRON Nederland B.V.
Daviottenweg 36
5222 BH ‘s-Hertogenbosch
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.nl
Poland
STIEBEL ELTRON sp. z o.o.
ul. Instalatorów 9 | 02-237 Warszawa
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.com.pl
Russia
STIEBEL ELTRON LLC RUSSIA
Urzhumskaya street, 4. | 129343 Moscow
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.ru
Slovakia
TATRAMAT - ohrievace vody, s.r.o.
Hlavna 1 | 058 01 Poprad
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.sk
Sweden
STENERGY
Vasagatan 14 | 545 30 Töreboda
Sales:
Tel. [phone] | [e-mail]
Technique & Service:
Tel. [phone] | [e-mail]
www.stiebel-eltron.se
Switzerland
STIEBEL ELTRON AG
Netzibodenstr. 23 c | 4133 Pratteln
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.ch
Thailand
STIEBEL ELTRON Asia Ltd.
469 Moo 2, Tambol Klong-Jik
Ampur Bangpa-In | Ayutthaya 13160
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebeleltronasia.com
United States of America
STIEBEL ELTRON Inc.
17 West Street | West Hatfield, MA 01088
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron-usa.com
Deutschland
STIEBEL ELTRON GmbH & Co. KG
Dr.-Stiebel-Straße | 37603 Holzminden
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel-eltron.de
Verkauf Tel. [phone]* | Fax [phone]* | [e-mail]
Kundendienst Tel. [phone]* | Fax [phone]* | [e-mail]
Tel. [phone]
Ersatzteilverkauf Tel. [phone]* | Fax [phone]* | [e-mail]
Tel. [phone]
Vertriebszentren Tel. [phone]* | Fax [phone]*
* 0,09 €/min bei Anrufen aus dem deutschen Festnetz.
Maximal 0,42 €/min bei Anrufen aus Mobilfunknetzen.
Irrtum und technische Änderungen vorbehalten | Subject to errors and technical changes! | Sous réserve
d‘erreurs et de modifications techniques! | Onder voorbehoud van vergissingen en technische wijzigingen!
| Salvo error o modificación técnica! | Rätt till misstag och tekniska ändringar förbehålls! | Excepto erro
ou alteração técnica | Zastrzeżone zmiany techniczne i ewentualne błędy | Omyly a technické změny jsou
vyhrazeny! | A muszaki változtatások és tévedések jogát fenntartjuk! | ВозмоҖность неточностейи
технических изменений не исключается. | Chyby a technické zmeny sú vyhradené! Stand 06/10
A 280010-36039-8628 B 283983-36039-8628
4<AMHCMN=iaabac>
Australia
STIEBEL ELTRON Australia Pty.Ltd.
Unit 4, 8 Rocklea DrivePort Melbourne, VIC, 3207
Tel. [phone] | Fax [phone]
[e-mail]
www.stiebel.com.au
280010-36039-8627 WWK 300 AHP en_AU.indb 20 24.01.2011 13:36:56