Installation and
Operating Instructions
Hot Water Heat
Pump for Outdoor
Installation
FD 9501
English
HPWH 300
HPWH 300HE
HPWH 300 - HPWH 300HE
Table of contents
1
Please read immediately............................................................................................................ EN-2
1.1 Important notes.................................................................................................................................... EN-2
1.2 Intended use ........................................................................................................................................ EN-2
1.3 Regulations / safety information .......................................................................................................... EN-2
Description.................................................................................................................................. EN-3
2.1 General ................................................................................................................................................ EN-3
2.2 Refrigerant circuit (heat pump operating principle).............................................................................. EN-3
2.3 Safety and control devices................................................................................................................... EN-3
3
Storage and transport................................................................................................................ EN-4
3.1 General ................................................................................................................................................ EN-4
3.2 Fork lift (or lift truck) transport.............................................................................................................. EN-4
3.3 Manual transport.................................................................................................................................. EN-4
4
Installation .................................................................................................................................. EN-5
4.1 Installation location .............................................................................................................................. EN-5
4.2 Installation............................................................................................................................................ EN-5
5
Assembly .................................................................................................................................... EN-5
5.1 Connecting the water pipes ................................................................................................................. EN-5
5.2 Connecting the condensate hose ........................................................................................................ EN-6
5.3 Electrical connection............................................................................................................................ EN-6
6
Commissioning .......................................................................................................................... EN-6
6.1 Domestic hot water system.................................................................................................................. EN-6
6.2 Operating the domestic hot water heat pump...................................................................................... EN-6
7
Maintenance / repair................................................................................................................... EN-7
7.1 Water circuit / condensate drain .......................................................................................................... EN-7
7.2 Air circuit supply................................................................................................................................... EN-7
7.3 Corrosion protection anode ................................................................................................................. EN-8
8
Faults / troubleshooting (for the user) ..................................................................................... EN-8
9
Decommissioning ...................................................................................................................... EN-8
10 Environmental requirements..................................................................................................... EN-8
11 Device information ..................................................................................................................... EN-9
Appendix .............................................................................................................................................. A-I
Dimensioned drawing................................................................................................................................... A-II
Integration Diagram..................................................................................................................................... A-III
Circuit Diagrams........................................................................................................................................... A-VI
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English
2
HPWH 300 - HPWH 300HE
1
Please read
immediately
1.1
1.3
NOTE
Important notes
Read these installation
commissioning!
ATTENTION!
Work on the domestic hot water heat pump may only be performed by
qualified personnel. Observe accident prevention regulations.
ATTENTION!
English
The device cover cannot be used for carrying (the cover cannot withstand
significant forces).
ATTENTION!
If devices are installed in locations with a risk of frost and are no longer
operated or will not be connected to the power for a long period (several
hours), the water must be drained from the cylinder. If this is not done,
frost may destroy the device.
ATTENTION!
The domestic hot water heat pump must only be operated when filled with
water!
ATTENTION!
Disconnect the power supply before opening the domestic hot water heat
pump; possible fan coasting must be considered!
ATTENTION!
Malfunctioning protection anodes reduce the service life of the device!
(Electrically insulated magnesium anode with selenium complying with
DIN 4753 part 6)
ATTENTION!
Work on the domestic hot water heat pump is to be performed by
qualified personnel only! Observe accident prevention regulations!
DANGER!
Failure to operate the PTR Valve easing gear every six
months may lead the water heater exploding.
ATTENTION!
Continuous water leaking from the drain may indicate
a problem with the water heater.
ATTENTION!
Water may drip from both the pressure relief device
and the condensate drain. These pipes must be left
open to the atmosphere.
1.2
Intended use
This device is only intended for use as specified by the
manufacturer. Any other use beyond that intended by the
manufacturer is prohibited. This requires the user to abide by
the relevant project planning documents. Please refrain from
tampering with or alter-ing the device.
EN-2
Regulations / safety
information
and
operating
instructions
before
 The domestic hot water heat pump is used exclusively to
heat water for domestic use and drinking water within the
specified operating temperature limits! The heating of fluids
other than domestic water is not permitted. The installation
must take place in accordance with the Australian standard
AS/NZS 3500.4
For domestic use in Australia and New Zealand a TEMPERING VALVE must be fitted by the installer.
 The following are not permitted:
- Operating the pump with solvent-based, explosive or
chloric exhaust air
- The use of exhaust air containing grease, heavy dust or
adherent aerosols
- Connecting extractor hoods to the
ventilation system
 A PTR Valve must be fitted
 It is not permissible to operate the device:
- With an empty cylinder
 The refrigerating system meets the requirements of
ISO 5149-3:2014.
 The technician must ensure that the refrigerant is flushed
adequately to allow maintenance and repair work to be carried out on refrigerant circuit components without risk. Refrigerant must be properly handled and disposed of; it must
not be released into the environment!
The refrigeration circuit is "hermetically sealed" and contains
the fluorinated refrigerant R134a with a GWP value of 1430,
incorporated in the Kyoto protocol. The refrigerant is CFCfree, non-ozone depleting and non-combustible.
 Always disconnect the power supply before carrying out any
work on the domestic hot water heat pump.
 When connecting the domestic hot water heat pump to the
power supply, the relevant IEC standards and the AS 3000
must be complied with. Also observe the technical connection requirements of the electrical utility companies.
ATTENTION!
Work on the domestic hot water heat pump may only be performed by
qualified personnel.
Observe accident prevention regulations.
 Persons, especially children, who are not capable of operating the device safely due to their physical, sensory or mental abilities or due to their inexperience or lack of knowledge,
must not operate this device without supervision or instruction by the person in charge.
Children must be supervised to ensure that they do not play
with the device.
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Description
2.1
2.2
General
The domestic hot water heat pump is a ready-for-use heating device whose main components are a domestic hot water cylinder,
the components of the refrigerant, air and water circuits and the
control, regulation and monitoring devices required for automatic
operation.
The domestic hot water heat pump is supplied with electrical energy and uses the heat stored in the intake air for domestic hot
water preparation. The domestic hot water heat pump with internal heat exchanger can be connected to additional heat generators such as boilers and solar energy systems. A vertical cladding tube (inner   12 mm) houses an external temperature
sensor. The devices are equipped as standard with an electric
heating element (1.5 kW).
The temperature of the intake air (the heat source) provides the
reference value for the energy consumption and the domestic hot
water preparation heating-up time.
Falling exhaust air temperatures reduce the heat pump output
and increase the heating-up time. In order for the heat pump to
be operated economically, the air intake temperature should not
fall below 15 °C. If the air intake temperature falls below 0 °C
±1.5, the heat pump is switched off and the domestic hot water
heating is heated by the standard heating element (1.5 kW).
The electric heating element fulfils four functions:
 Supplementary heating
The heat-up time is approximately halved by switching on
the heating element (via the "Heating element" switch, see
Cap. 6.2 on pag. 6) in addition to the heat pump.
 Frost protection
If the air temperature falls below 0 °C ±1.5, the electric heating element switches on automatically and (nominally) heats
the water up to the domestic hot water setpoint temperature
of 60°C.
 Emergency heating
In the event of a heat pump fault, the domestic hot water
supply is maintained by the heating element.
Refrigerant circuit (heat pump
operating principle)
The refrigerant circuit is a closed system in which the R134a refrigerant is the energy source. The finned heat exchanger extracts heat from the drawn-in air at a low evaporation temperature, and transfers it to the refrigerant. The vaporous refrigerant
is taken in by a compressor, where it is compressed to a higher
pressure and temperature level before being transported to the
liquefier, where the heat absorbed in the evaporator and part of
the compressing energy is transferred to the water. Subsequently, the high condensation pressure is lowered to the evaporation pressure by a throttle mechanism (expansion valve), and
the refrigerant can again extract heat from the intake air in the
evaporator.
2.3
Safety and control devices
The domestic hot water heat pump is equipped with the following
safety devices:
High pressure switch (HP)
The high pressure switch protects the heat pump against unacceptably high operating pressure in the refrigerant circuit and
switches the heat pump off in the event of a fault. The heat pump
restarts automatically as soon as the pressure in the refrigerant
circuit has dropped again.
Safety temperature limiter for heating element
(STL)
The STL protects the domestic hot water system against unacceptable temperature increases.
The heating element is disconnected all-pole if the set switching
value (99 °C) is exceeded.
The heating element cannot be switched on again until the domestic hot water temperature has decreased to 90°C and the
reset button (see illustration) on the STL is pressed (this must
only be done by qualified personnel).
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 Higher water temperature
If the required domestic hot water temperature is higher than
the temperature achievable by the heat pump (approx.
60°C), it can be raised to a max. of 85°C by means of the
heating element.
67%
ƒ
%
NOTE
When the domestic hot water temperature reaches 60 °C, the heat pump
switches off and the domestic hot water is heated solely by the heating
element. The factory setting for the heating element controller is 65 °C.
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The domestic hot water heat pump is also equipped with the following regulation and control devices:
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2
HPWH 300 - HPWH 300HE
Heating element temperature controller (TC)
The heating element thermo controller regulates the domestic
hot water temperature during heating element operation. The
maximum controller temperature is factory set to 65 °C (the controller and the STL are installed together in a casing). Temperature settings can be changed using suitable tools (see illustration). Changes to this setting may only be carried out by qualified
personnel.
English
In automatic operation (activated via air temperature sensor), the
water is heated by the heating element until the setpoint has
been reached (60 °C). In contrast to heat pump only operation, a
smaller amount of water is heated up to minimise the operating
period of the heating element. In continuous manual operation,
the domestic hot water is heated until the set maximum temperature of the heating element controller has been reached.
Heat pump temperature controller
Temperature control in the domestic hot water cylinder and the
regulation for compressor operation is carried out by the control
electronics.
A temperature sensor (R3) records the water temperature in the
cylinder and another sensor (R1) records the air intake temperature before the evaporator. A further temperature sensor (R10)
prevents the evaporator from freezing.
5
3
Storage and transport
3.1
General
The domestic hot water heat pump should always be stored and
transported packaged in an upright position, without being filled
with water. If handled carefully, the device can be transported
over short distances with a maximum tilt angle of 45°. Ambient
temperatures between -20 and +60 °C are permissible during
transport and storage.
3.2
Fork lift (or lift truck) transport
The domestic hot water heat pump must remain mounted on the
pallet when being transported with a fork lift. The pump should be
lifted slowly. Because of its high centre of mass, the domestic hot
water heat pump must be secured against toppling. To prevent
damage, the domestic hot water heat pump must be lowered
onto a level surface.
3.3
Manual transport
The pallet can be used underneath the device for manual transportation. A second or third carrying position can be created with
the help of ropes or carrying slings (these may be wrapped
around the cylinder casing and attached to the water pipe nipples). When transporting the heat pump in this manner (or with a
hand truck), do not, under any circumstances, exceed the max.
tilt angle of 45° (see illustration). If the heat pump can only be
transported in a tilted position, the domestic hot water heat pump
("Heat Pump" switch) should not be operated for at least one
hour after installation in its final location.
5
ƒ
5
ATTENTION!
The device cover cannot be used for carrying (the cover cannot withstand
significant forces).
5
EN-4
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HPWH 300 - HPWH 300HE
Installation
4.1
5
Installation location
5.1
 Condensate drainage (with a siphon) must be provided.
 The condensate must be discharged without frost.
 The air taken in may not be excessively contaminated or
contain large amounts of dust.
 The load-bearing capacity of the foundation must be sufficient (the weight of the domestic hot water heat pump is approx. 440 kg!).
For fault-free operation and for any maintenance and repair
work, minimum clearances of 0.6m are required on all sides of
the device. If the BWP is installed in any kind of enclosure, the
clearances set out in the figure must be maintained
Connecting the water pipes
The water connections (see Cap. 1 on pag. II) are located on the
rear of the unit.
Important information:
Circulation pipe
For energy efficiency reasons, a circulation pipe should not be
used if this can be avoided. If a circulation pipe is installed in the
domestic hot water distribution system, a valve or a similar device must be provided as shut-off facility to avoid unnecessary
energy losses. Circulation is enabled according to use (time or
requirement control).
The nominal pipe widths for the on-site sanitary installation must
be determined by taking into account the available water pressure and any pressure drops expected to occur in the pipework.
Water installations must be executed according to the Australian
standard AS 3500.4, also observe local regulations for domestic
water installations!
The heat pump must be permanently connected to the water
mains! Both rigid and flexible water pipes may be used.
Assembly
Install a 500 kPa pressure and temperature relief valve
(PTRV)(see Cap. 2.3 on pag. IV)
Observe the corrosion behaviour of the pipework materials used
in order to avoid corrosion damage (see section "Commissioning").
Pipe nipples (on the cylinder) and water pipes must be protected
from frost!
ATTENTION!
If devices are installed in locations with a risk of frost and are no longer
operated or will not be connected to the power for a long period (several
hours), the water must be drained from the cylinder. If this is not done,
frost may destroy the device.
4.2
The pipe nipples are protected from corrosion with a heat shrinkable tubing. In the connection thread area, the heat shrinkable
tubing should only be removed as far as necessary. The transition or interface area should be protected (e.g. with silicon) to
provide corrosion protection.
A safety valve (PTR valve) must be mounted on-site by the installer. This valve must not be lockable and must not have a shutoff device.
Installation
 Remove the three transport restraint screws (M12 - fixing
the device to the pallet) from the bottom of the pallet.
 Remove the pallet and mount the three M12 supporting feet
(in the plastic bag attached to the nipple of the cylinder pipe).
 Position the domestic hot water heat pump and align it vertically by adjusting the device feet. Then tighten the counter
nuts on the device feet.
NOTE
Domestic hot water, cold water, circulation connections:
These pipe nipples contain plastic inserts, the purpose of which is to
protect against corrosion (in particular to the pipe nipple flange
surfaces). These plastic inserts remain in their positions after installation.
NOTE
When installing the on-site pipework, ensure that the pipes are not
contaminated (flush pipes before connecting the domestic hot water heat
pump if necessary)!
NOTE
The PTR Valve must be installed as per the Hydraulic
Drawing on page A-IV. Both the PTR Valve and Pressure
Reduction Valve must comply with AS1357.1
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4
HPWH 300 - HPWH 300HE
5.2
Connecting the condensate
hose
The condensate hose is routed out through the sheet metal covering. It should be routed in such a way that the condensate produced (during heat pump operation) can flow away freely - ensure frost-free drainage.
There is a pressureless seal valve at the end of the condensate
hose, which must be relocated accordingly if the condensate
hose is shortened (the valve can be easily removed and re-inserted).
English
5.3
Electrical connection
6
Commissioning
6.1
ATTENTION!
The domestic hot water heat pump must only be operated when filled with
water!
Domestic hot water system requirements
The following materials can be used in the consumer's domestic
hot water system:
 Copper
 Stainless steel
The domestic hot water heat pump is wired ready for use; power
is supplied via the mains power connection, which is plugged into
an earthed wall socket (~230 V, 50 Hz). This socket must remain
accessible after installation.
The installation (electical 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.
Mains power connection replacement
The electrical connecting terminal (X2) is located on the partition
in the device.
 Cable type: H07RN-F3G 1.5 mm²
 Routing in accordance with the original mains power connection via cable entry on the rear wall.
 Sheath stripping length 85 mm
 Shorten L/N wires to 55 mm
 Strip wires 7 mm, fit with cable ferrules and connect to X2: L/
N/PE
 Brass
 Plastic
Depending on the materials used in the domestic hot water system (customer installation), material incompatibility may lead to
corrosion damage. This especially applies to zinc-plated materials and materials containing aluminium. If there is a risk of water
contamination during operation, it may be necessary to install a
filter.
Commissioning the domestic hot water system
 All installations for the water circuit and air circuit, as well as
all electrical installations, must have been carried out correctly and fully completed.
 Fill the domestic hot water circuit via an external connection.
 Purge the domestic hot water circuit (open domestic hot
water taps at the highest extraction points until there are no
more traces of air).
 Check the entire domestic hot water system for leaks.
 Establish the power supply.
6.2
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Domestic hot water system
Operating the domestic hot
water heat pump
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If the supply cord is damaged, it must be replaced by a special
cord or assembly available for the manufacturer or its service
agent.
Apart from the switch for the electric heating element, there are
no other controls on the device. The domestic hot water temperature is preset to 60°C and is regulated automatically.
EN-6
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HPWH 300 - HPWH 300HE
If there is an increase in hot water consumption or if a higher hot
water temperature (60±2°C) is desired, the “heating element”
switch can be used to switch the integrated 1.5 kW radiator on.
If the "Heating Element" switch is in the "On" position (switch lit),
approx. the upper third of the cylinder will be heated up to the
maximum temperature of the heating element controller (factory
setting 65°C); at domestic hot water temperatures > 60°C, domestic hot water preparation is carried out using the heating element only.
Note  Heating element controller
The heating element controller is a second control unit for controlling the operating range of the electric heating element, which
is completely independent of the domestic hot water controller.
The factory set switch-off temperature of 65°C can be changed
by a technician (see Cap. 2.3 on pag. 3)
Sensor pipe for external temperature sensors
A vertical sensor pipe  12mm (opening in the bottom plate
sealed with a leading-in tube) for an external temperature sensor
is fitted in the rear of the domestic hot water heat pump.
7
Maintenance / repair
ATTENTION!
Disconnect the power supply before opening the domestic hot water heat
pump; possible fan coasting must be considered!
General
The domestic hot water heat pump is virtually maintenance free.
Furthermore, a one-off visual inspection for possible leaks in the
water system and clogging of the condensate drain must be carried out a few days after commissioning.
The refrigeration circuit of the heat pump does not require maintenance.
Only use a damp cloth with a little soap solution to clean the domestic hot water heat pump.
The installation (water and electical work) and commissioning, as
well as the maintenance of this equipment, must only be caried
out by an authorised qualified contractor in accordance with
these instructions.
NOTE
Ensure water does not come into contact with the operator controls.
Unplug the mains plug and switch off the power supply before beginning
any cleaning work.
7.1
Water circuit / condensate
drain
The water circuit check is limited to filters that may have been installed on site and possible leakages. Dirty water filters should be
cleaned and, if necessary, replaced. The seal valve in the end of
the condensate hose must only be checked for contamination,
and cleaned if necessary.
7.2
Installation position of the external temperature sensor
(device cover removed in illustration)
Air circuit supply
Maintenance work is limited to cleaning the evaporator on a regular basis and as required.
NOTE
Risk of injury caused by sharp-edged fins. Fins must not be deformed or
damaged!
If air filters are used, they should be regularly checked for contamination and be cleaned and replaced if required.
NOTE
The PTR Valve must be discharged every six months to
check for correct operation.
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EN-7
English
"Heating Element" switch
HPWH 300 - HPWH 300HE
7.3
Corrosion protection anode
The corrosion protection anode installed in the domestic hot
water cylinder should be electrically checked on a regular basis
(at least every two years after commissioning) and be replaced
as necessary. Electrical checking is carried out by means of a
suitable ammeter, without draining the cylinder.
Procedure:
English
1)
Unplug the PE cable from the protection anode tab.
2)
Connect the ammeter (0 to 50 mA) between the PE cable
and the tab.
3)
Evaluation of wear on the protection anode:
Measured value > 1 mA  protection anode is in working
order.
Measured value < 1 mA  protection anode must be tested
and/or replaced.
If electrical testing does not provide any clear results, a visual inspection of the protection anode by a technician is recommended.
Should replacement of the protection anode [by a technician] be
necessary, the cylinder must be drained via the drainage valve
provided (to be fitted during installation - see Appendix).
ATTENTION!
8
Faults / troubleshooting
(for the user)
ATTENTION!
Work on the domestic hot water heat pump is to be performed by
qualified personnel only!
Observe accident prevention regulations!
The heat pump will not operate!
Check the following:
 Voltage is applied to the device
 the intake air or ambient temperature is  0 °C
 The heat pump has not been switched off by the temperature controller
 the hot water temperature has reached (or exceeds) 60 °C
Condensate cannot drain properly (there is water
under the device)
Check the following:
 The seal valve in the end of the condensate hose is contaminated or clogged, and clean if necessary; the valve can be
easily removed and replaced.
 The air supply / air outlet is significantly reduced.
Malfunctioning protection anodes reduce the service life of the device!
(Electrically insulated magnesium anode with selenium complying with
DIN 4753 part 6)
If the above suggestions cannot help you eliminate these faults,
please contact your technician or after-sales service partner.
9
Decommissioning
Tasks to be carried out:
 Disconnect the domestic hot water heat pump from the
power supply.
 Completely shut off the water circuit (domestic hot water,
cold water and circulation pipe) and drain the domestic hot
water cylinder through the drain valve.
10 Environmental
requirements
During maintenance or decommissioning of the domestic hot
water heat pump, all environmental requirements regarding recovery, recycling and disposal of materials and components
must be observed in compliance with DIN EN378.
EN-8
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HPWH 300 - HPWH 300HE
11 Device information
1
2
Type and order code
Design
2.1
Defrosting
yes
yes
2.2
Nominal cylinder volume litre
300
290
-
1.45
-
12
Transfer area of the internal heat exchanger m2
2.4
Sensor pipe ø internal for external sensors
2.5
Installation location
2.6
Cylinder material
2.7
Cylinder insulation
2.8
Nominal cylinder pressure
3
Operating limits
3.1
3.2
4
Sound
mm
HPWH 300HE
Outside
Outside
Enamelled steel complying with
DIN 4753
Enamelled steel complying with
DIN 4753
PU with sheet metal covering
PU with sheet metal covering
kPa (bar)
700 (7)
700 (7)
Heat source operating limit1
°C
0 to 45
0 to 45
Domestic hot water in heat pump operation
°C
4.1
Sound power level
5
Dimension/weight and filling quantities
± 1.0 K
60
dB(A)
60 ± 1.0 K
65
65
5.1
Dimensions height (max.) x cross-section (max.)
mm
1680 x 700
1680 x 700
5.2
Weight (empty)
kg
145
160
5.3
Refrigerant R 134a/ filling weight
kg
1.0
1.0
6
Electrical connection
6.1
Degree of protection
IP 24
IP 24
6.2
Connection voltage
1/N/PE~230 V, 50 Hz
1/N/PE~230 V, 50 Hz
6.3
Fuse max.
A
C16
C16
6.4
Heat pump power consumption cos
A
0.8
0.8
6.5
Supplementary electrical heating power consumption
A
6.5
6.5
11.1
6.6
Power consumption max.
A
11.1
6.7
Heat pump nominal power consumption at 60°C2
W
630
630
6.8
Supplementary electrical heating power consumption
W
1500
1500
W
2300
2300
R 3/4“
R 3/4"
6.9
Total power consumption max.
7
Hydraulic connection
7.1
Circulation pipe connection external thread
7.2
Domestic hot water outlet connection external thread
R1“
R1"
7.3
Cold water inlet connection external thread
R1“
R1"
7.4
Internal heat exchanger connection external thread
-
R1"
8
Performance values
8.1
Heat-up time from 15 °C to 60 °C 2
8.2
Mean heat output at 45 °C
9.1
9.1
1870
1870
h
3
8.3
COP according to EN 16147 cycle XL
2.32
2.32
8.4
Useful domestic hot water quantity
Litres
419
419
8.5
Stand-by energy consumption at 55 °C / 24 h
W
1.2
1.2
1. At temperatures below 0 °C ± 1 °C, the heating element is automatically switched on and the heat pump module off.
2. Heating up of the nominal volume from 15 °C to 60 °C at an air intake temperature of 20 °C and a relative humidity of 70 %
3. Heating up of the nominal volume from 15 °C to 45 °C at an air intake temperature of 20 °C and a relative humidity of 70 %
A H5 850 kPa PTR Valve must be fitted
A PSL 50 Valve (500 kPa) must be fitted
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English
2.3
HPWH 300
HPWH 300 - HPWH 300HE
English
EN-10
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HPWH 300 - HPWH 300HE
Appendix
1
Dimensioned drawing ................................................................................................................. A-II
2
Integration Diagram ..................................................................................................................... A-III
2.1
2.2
2.3
2.4
2.5
3
Process circuit diagram.......................................................................................................................... A-III
Legend................................................................................................................................................... A-III
Hydraulic integration diagram ................................................................................................................ A-IV
Legend................................................................................................................................................... A-IV
Heat Exchanger Integration Diagram for Thermal Solar Installation ................................................... A-V
Circuit Diagrams .......................................................................................................................... A-VI
Appendix
3.1 Load....................................................................................................................................................... A-VI
3.2 Control................................................................................................................................................... A-VII
3.3 Legend................................................................................................................................................... A-VIII
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A-I
451903.66.18 · FD 9501
A-II
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HPWH 300 - HPWH 300HE
1 Dimensioned drawing
www.dimplex.com.au
HPWH 300 - HPWH 300HE
2 Integration Diagram
Process circuit diagram
2.2
Legend
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Compressor
Evaporator
Hot water cylinder with Liquifier
High-pressure switch
Check valve
Air inlet temperature sensor (R1)
Filter dryer
Expansion valve
Cylinder temperature sensor
Heating element
Safety temperature limiter for heating element
Service valve
Four-way valve
Defrost end sensor R10
Additional heat exchanger only for HPWH 300HE
Appendix
2.1
www.dimplex.com.au
451903.66.18 · FD 9501
A-III
HPWH 300 - HPWH 300HE
2.3
Hydraulic integration diagram
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Appendix
2.4
Legend
1
2
3
4
5
6
7
Shutoff valve
Pressure reducing valve
Test valve
Return flow inhibitor
Pressure gauge connecting stubs
Drain valve
Safety temperature pressure valve (PTR valve)
There must be no shut-off device between the cylinder and the
safety valve (PTR valve). The bleeding line/drain line of the valve
must not be blocked
Circulation pump
Outlet
No connections for second heat generator required (i.e. no heating
water flow and no heating water return flow) for hot-water heat
pumps without internal heat exchanger
8
9
*
ATTENTION!
The PTR discharge pipe is to be installed in a continuously
downward direction in a frost free environment.
The discharge pipe shall not be blocked.
A pressure reducing valve set at 500 kPa must be fitted to
the cold water inlet.
A-IV
451903.66.18 · FD 9501
www.dimplex.com.au
HPWH 300 - HPWH 300HE
2.5
Heat Exchanger Integration Diagram for Thermal Solar Installation
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www.dimplex.com.au
451903.66.18 · FD 9501
A-V
HPWH 300 - HPWH 300HE
3 Circuit Diagrams
3.1
Last / Load
Appendix
A-VI
451903.66.18 · FD 9501
www.dimplex.com.au
HPWH 300 - HPWH 300HE
Control
Appendix
3.2
www.dimplex.com.au
451903.66.18 · FD 9501
A-VII
HPWH 300 - HPWH 300HE
Appendix
3.3
Legend
A2
External bridge block
B5
Thermostat E1
C1
C2
C5
Condenser compressor
Condenser fan
Suppressor capacitor
E1
Electric heater
F1
F2
F3
F17
Control fuse (230 V / 4 A)
High-pressure switch
Thermal contact, compressor
Safety temperature limiter E1
H1
Electric heater indicator lamp
J1
J3
Digital inputs / outputs (U=230 V)
Analogue inputs (screw terminals)
K1
K2
K4
Compressor load relay
Starting relay for M1
Load relay for E1
M1
M2
Compressor
Ventilator
N1
Control PCB
R1
R3
R10
Air intake temperature sensor
Cylinder temperature sensor
Defrost end sensor
S1
Electric heating "ON/STANDBY" switch
X1
X2
X4
Mains plug
Terminal strip 230 V
Fan terminal strip
Y1
Four-way valve
_____
--------
Wired by the
customer
A-VIII
451903.66.18 · FD 9501
www.dimplex.com.au
Appendix
HPWH 300 - HPWH 300HE
www.dimplex.com.au
451903.66.18 · FD 9501
A-IX
Glen Dimplex Australia Pty Ltd
1/21 Lionel Road
Mount Waverley, VIC 3149
www.dimplex.com.au
ph: 1300 556 816
fax: 1800 058 900
Subject to alterations and errors.