Electrolux Kelvinator Heat Pump Hot Water System User manual

Heat Pump Hot Water System
User Manual

2 contents Kelvinator heat pump hot water systems
Congratulations and thank you for choosing our Heat
Pump hot water system. We are sure you will find your new
hot water system a pleasure to use. Before you use the hot
water system, we recommend that you read through the
entire user manual, which provides the description of the
hot water system and its functions.
Just a little preventative care on your part can save you a
great deal of time and money over the life of your hot water
system. You'll find many answers to common problems
in the chart of troubleshooting tips. If you review the chart
of Troubleshooting Tips first, you may not need to call
for service.
To avoid the risks that are always present when you use
an appliance, it is important that the hot water system
is installed correctly and that you read the safety instructions
carefully to avoid misuse and hazards.
We recommend that you keep this user manual for future
reference and pass it on to any future owners.
After unpacking the hot water system please check it is not
damaged. If in doubt, do not use the hot water system but
contact your local Electrolux Customer Care Centre.
environmental tips
Information on disposal for users
• Most of the packing materials are recyclable.
Please dispose of those materials through your local
recycling depot or by placing them in appropriate
collection containers.
• If you wish to discard this hot water system, please
contact your local authorities and ask for the correct
method of disposal.
caution
• Contact an authorised installer for installation of this hot
water system.
• Contact an authorised service technician for repair or
maintenance of this hot water system.
• Installation work must be performed in accordance
with national standards by authorised personnel only.
Wrong connection can cause over heating or re.
• This hot water system should be installed in accordance
with AS/NZS 3000 and your electricity suppliers rules.
Conditions of use
This appliance is intended to be used in household and
similar applications such as :
• staff kitchen areas in shops, ofces and other working
environments.
• farm houses.
• by clients in hotels, motels and other residential type
environments.
• bed and breakfast type environments
Important .......................................................................... 3
Important safety instructions ........................................... 4
Components and specifications ........................................ 5
Information required to claim your STCs.......................... 5
How your hot water system works.................................... 6
Using your hot water system ............................................ 6
Maintenance...................................................................... 8
Troubleshooting .............................................................. 10
Warranty.......................................................................... 11
Congratulations Contents

Meanings of symbols used in this manual are shown below:
warning
This symbol indicates information concerning your
personal safety
caution
This symbol indicates information on how to avoid
damaging the hot water system
tips & information
This symbol indicates tips and information about
use of the hot water system
environmental tips
This symbol indicates tips and information about
economical and ecological use of the hot water system
For the installer
The installation must be done in accordance with the
information supplied in the installation guide supplied
with the hot water system.
All other relevant National, State or Local regulations must
also be conformed with and these include (but are not
limited to):
• Australian Standard AS3500.1 – Water Supply
• Australian Standard AS3500.4 – Hot Water Supply
• Australian Standard AS3000 – Electrical Installation
• Local Water & Electrical Authority Regulations
Municipal Building Codes
When the heat pump hot water system is installed with an
additional off peak power supply, the power supply must not
be standard off peak (also known as off peak 1 – available only
8 hours). The off peak power supply must be changed to or
kept as extended off peak (also known as off peak 2 – available
up to 18 hours). If extended off peak is not available, the heat
pump hot water system is to be connected to a continuous
only power supply to ensure its correct operation.
warning
Do not operate or stop the hot water system by
switching on or off the power
Do not use a damaged or unspecied power
supply cable
Do not allow water to run into electric parts of
the hot water system as it may cause failure or
electric shock
Do not open any part of the hot water system during
operation as it may cause electric shock
Do not store ammable gas or combustibles such as
gasoline, benzene, paint thinner etc near the hot water
system as this may cause corrosion or an explosion
Do not disassemble or modify the hot water system
as it may cause failure and electric shock
Important
Kelvinator heat pump hot water systems important 3

4 important safety instructions Kelvinator heat pump hot water systems
caution
• Do not use the hot water system for any other purposes
besides heating water for domestic use.
• Do not place items which might be damaged by moisture
around the hot water system or near the drain outlets.
• If the power supply cable is damaged, it must be
replaced by the manufacturer, its service agent or
qualified persons in order to avoid a hazard.
• This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety. Children should be
supervised to ensure that they do not play with
the appliance.
• Water may drip from the discharge pipe of the pressure
relief valve. This pipe must be left open to atmosphere at
all times.
• The pressure-relief device is to be operated regularly to
remove lime deposits and to verify that it is not blocked.
• A discharge pipe connected to the pressure-relief valve is
to be installed in a continuously downward direction and
in a frost-free environment.
Ensure the following safety instructions are read and
understood before using this hot water system.
warning
Water temperatures above 50°C can cause severe burns,
scalding or death. Feel the water temperature before
bathing or showering. Do not leave children unsupervised.
Under AS/NZS 3500 the temperature of the hot water
being delivered must not exceed 50°C at any outlets used
primarily for purposes of personal hygiene. To comply with
these standards, a tempering valve set must be tted to
the hot water system.
• Do not use this hot water system if it has at any stage
been immersed in water. Immediately call a licensed
plumber, gas fitter or authorised technician to inspect
and/or service the system.
• Do not disconnect the electrical supply if the ambient
temperature drops below freezing. The Freeze Protection
System only works when the hot water system is
connected to the power. The warranty is void if the
heat exchanger is damaged as a result of freezing.
• In order to avoid electric shock, re or injury, if any
abnormality is detected, such as the smell of smoke
coming from the hot water system, isolate the power at
the main switchboard then contact your local Electrolux
Customer Care Centre.
• Do not insert ngers, rods or other objects into the air
inlet or outlet of the heat pump. If the fan is rotating, it
may cause personal injury or damage.
• Do not remove any guards or panels on the heat pump.
It may cause a safety hazard or allow the unit to be
damaged.
• Do not touch the heat exchanger ns. These ns are sharp
and could result in cutting injuries.
• Never use a ammable spray such as hair spray, lacquer
or paint near the hot water system as it may cause a fire.
• After a long term use of the hot water system, check the
heat pump's stand and fittings. If damaged or loose, the
heat pump may fall and result in injury.
• The operation of the thermal cut out indicates a possibly
dangerous situation. Do not reset the thermal cut out until
the water heater has been serviced by a qualified person.
Important safety instructions

Kelvinator heat pump hot water systems components 5
When calling the service centre, please refer to this section of
the user manual as it will help you to describe your heat pump
hot water system and assist you in quoting the model numbers.
Hot water storage tank
270L (KCT27036A)
340L (KCT34036A)
450L (KCT45036A)
Your heat pump hot water system components (please tick)
Heat Pump KSE362HPCA
Continuous power supply
Extended off-peak power supply
Hot Water System Model Number
(for STC registration):
Serial numbers:
Installation date:
Installed by:
Notes:
Information required to claim your STCs
System type System model no. Description
Heat Pump
KHPE270362A-C Kelvinator Heat Pump 270L tank- continuous
KHPE270362A-OP2 Kelvinator Heat Pump 270L tank - off peak 2 and continuous tarrif
KHPE340362A-C Kelvinator Heat Pump 340L tank- continuous tarrif
KHPE340362A-OP2 Kelvinator Heat Pump 340L tank - off peak 2 and continuous tarrif
KHPE450362A-C Kelvinator Heat Pump 450L tank- continuous tarrif
KHPE450362A-OP2 Kelvinator Heat Pump 450L tank - off peak 2 and continous tarrif

6 how your hot water system works Kelvinator heat pump hot water systems
How your hot water system works Using your hot water system
The auxiliary heating boost button is located on the side of
the heat pump near the inlet and outlet water connections.
auxiliary
heating
boost
button
To activate the electric heating manual mode:
• Twist to release the button (if already in pushed in
position), then push the button in until it clicks in place
• The fan may start up if needed to keep the heat pump
circuitry and electronics cool
• After about 3 seconds a “click” sound will be heard inside
the heat pump and the storage tank element circuit will
be activated.
• The storage tank element circuit will stay activated for
up to a 1 day period, after which the heat pump will
deactivate the element circuit and revert back to its
normal operating mode (even when the button
remains depressed).
warning
Ensure that the heater circuit is not active when connecting
with the heater tank.
Continuous or off-peak power supply
The heat pump may be installed on a continuous only power
supply or with an off-peak power supply to run the compressor
circuit and continuous supply to power the electronics and
auxiliary tank element. If the heat pump is installed on a
continuous only power supply it will be able to operate at any
time of the day. If it is installed with an off-peak power supply,
it will only be able to operate when the off-peak power supply
is available. The heat pump has been designed to operate on
extended off-peak which provides power for up to 18 hours
of the day (night and day). If the premises only has standard
off peak supply connected (available only 8 hours at night)
then there is a possibility that the customer may not have
sufficient hot water in the late afternoon. Failure to follow
this requirement is an installation error, and hence resulting
complaints will not be covered under warranty. Please contact
your electricity supplier to confirm or change to extended off
peak power supply.
Your hot water system contains two main components – a
heat pump and a hot water storage tank:
Heat Pump
The heat pump is the primary heating device and employs
the same heating technology as a refrigeration style air
conditioner. It absorbs heat energy from the surrounding air
and transfers it into water circulating between the heat pump
and the storage tank. Since this heat energy isn’t created but
simply moved and concentrated from one location to another,
it is very efficient and cost effective especially compared to the
common electric hot water service that transforms electrical
energy to heat energy by use of an element.
Hot Water Storage Tank
The hot water storage tank is where the hot water is stored
and kept available for usage throughout the day. It comprises
an enamel coated steel preservation tank, surrounded by
thermal insulation and protected by a metal casing.
A sacrificial anode is installed inside the tank to protect
it from corrosion and also a 3.6kW electric element as an
auxiliary heating device. Depending on your installation
your storage tank will have a storage capacity of either
270, 340 or 450 litres.
Operating modes
The hot water system has two operating modes, automatic
mode and electric heating manual mode:
1. Automatic mode: This is the default operating mode.
The heat pump starts up and shuts down according to
the water temperature inside the storage tank. When
the temperature inside the tank decreases to the restart
temperature setpoint, the heat pump will start up
automatically. When the temperature inside the tank is
heated to the stop temperature setpoint, the heat pump
will shutdown automatically.
2. Electric heating manual mode: When the user manually
presses the auxiliary heating boost button, then the
heat pump operation will change to the electric heating
manual mode. During this mode, the heat pump will
not run and instead will output power to the storage
tank element circuit. The tank element will heat water
according to the setting on the thermostat inside the
storage tank. This electric heating mode will run for up
to 1 day and then the heat pump will revert back to its
normal automatic mode. This mode can be useful if the
heat pump is wired to an off-peak power supply that may
only be available at night and extra hot water is needed
during the day. This mode may also be useful if the heat
pump requires a service call and hot water is needed until
the technician arrives.

Kelvinator heat pump hot water systems using your hot water system 7
Water temperature operating range
The heat pump has been designed to achieve maximum
efficiency and reduce greenhouse gas emissions. It maintains
the water inside the storage tank between 47°C and 60°C.
While this may be less than the temperature setpoint
of previously installed hot water systems, it is still well
above showering temperature. If a tempering valve wasn't
previously installed this may also create a noticeable
difference to the temperature or pressure of the hot water at
the fixtures. To maximise the amount of hot water available
and to save water it is recommended to install and use 3 or 4
star WELS rated showerheads (previously called AAA rated).
Bacteria and Legionella control
Once a week the heat pump will operate at a higher setpoint
and heat the water in the tank to 60°C. This is in order to
sanitize the water inside the tank, to prevent Legionella and
other bacteria from causing a heath hazard. It will run at this
new setpoint for 24 hours and then revert back to the normal
setpoint for the remainder of the week. By default the heat
pump starts up in this function and as such, the weekly cycle
will be reset if the heat pump loses power.
Ambient temperature range of the heat pump
In order for the heat pump to operate correctly, the ambient
temperature should be between -7°C and 50°C. If the
ambient temperature is outside this range the heat pump
may not operate.
Fan speed during heat pump’s heating operation
During the heat pump’s heating operation, the fan speed
will vary according to the outdoor ambient temperature and
may even stop completely. This optimises the performance
of the heat pump heating operation and is part of its
normal operation.
Heat pump freeze protection
The heat pump is suitable for heavy frost conditions. However,
in order for its freeze protection mechanism to operate there
must be power available to the heat pump. If the heat pump
is to be without power for a long period of time due to power
failure, maintenance or periodic shut down and there is a risk
of frosty conditions, the heat pump could become damaged
due to freezing. Follow the instructions in this manual to
isolate and drain the hot water system in order to protect it
from being damaged due to freezing. If it is suspected that the
heat pump has become frozen, ensure that power is available
and then call a service technician to inspect it.
Loss of power to the hot water system
If the hot water system is to be without power for a long period
of time (due to power failure, maintenance or periodic shut
down) and there is a risk of frosty conditions, the hot water
system may become damaged due to freezing. Follow the
instructions in this user manual for isolating and draining the hot
water system in order to protect it from being damaged.
Water quality
Water quality can vary in different locations and affect the
performance and safe operation of the hot water system.
If the water supply is not within the acceptable limits as
indicated below, the hot water system should not be
installed, and will not be covered by warranty from the
manufacturer. A suitable solution is to implement a water
pre-treatment process to bring the water quality to within
acceptable limits to support the installation.
Using your hot water system
Using your hot water system
The saturation index (SI) is a measure of the corrosive or
scaling properties of the water supply. Corrosive water
(SI<-1.0) can corrode copper components. In these
conditions warranty will not apply. Scaling water (SI>0.5)
can cause build up of CaCO3 (Calcium carbonate) which can
impact to the correct operation of moving parts within the
system, including the temperature and pressure relief valve.
In these conditions warranty will not apply.
Total Dissolved Solids (TDS) and water hardness can also
impact the life of the hot water system, and warranty does
not apply outside the following limits:
• TDS exceeding 600 p.p.m
• Electrical conductivity exceeding 850us/cm
• Total hardness exceeding 200 p.p.m
• Chloride exceeding 250 p.p.m
• Magnesium exceeding 10 p.p.m
• Sodium exceeding 150 p.p.m
• Acidity/Alkalinity must also be within the limits of
pH 6.5 - 8.5
Heat pump protection devices
The heat pump is programmed to prevent unsafe conditions
occurring and to protect itself from damage. When power is
applied to the heat pump it will not start until it has several
minutes of uninterrupted power supply to protect it from
excessive cycling of the power supply. The heat pump may
stop operating and become locked out due to a fault if some
of the following occur:
• Air inlet or outlet is blocked
• Water inlet or outlet is blocked
• Air mix in water or refrigerant
• Refrigeration circuit pressure is too high
• Supply voltage is outside the accepted range
• Temperature sensor has been damaged or removed from
storage tank
• Temperature sensors inside heat pump become faulty
or damaged
Pressure and temperature relief valve (PTR valve)
A pressure and temperature relief valve has been installed
next to the outlet connection near the top of your hot water
storage tank. The relief valve is designed to allow a small
amount of hot water to discharge during heating to allow for
hot water expansion. It is essential to the safe operation of
your hot water system and may activate if an unsafe
condition arises.
Running out of hot water
If you find you are occasionally running out of hot water, it
may be wise to review your household's hot water usage.
Since this hot water system is designed as an energy saving
appliance, you should consider adjusting your water usage
accordingly. Install more efficient appliances e.g. washing
machines or dishwashers and water saving xtures e.g. 3 or 4
star WELS rated showerheads. If the number of people in the
household has increased, consider installing a larger capacity
storage tank or changing the power supply from extended
off peak to continuous.

8 maintenance Kelvinator heat pump hot water systems
5. Release the pressure inside the tank by lifting up the lever
on the pressure and temperature relief valve. Caution
should be taken so the lever does not snap back as it
could damage the valve seat. Once the lever is activated
water will be discharged from the relief valve drainage
pipe, relieving the pressure inside the storage tank.
outlet
relief valve
activation
lever
drainage
pipe
6. When water has stopped discharging from the relief valve
drainage pipe, this indicates that the pressure inside the
tank has now been reduced to atmospheric pressure.
De-activate the lever on the relief valve, returning it to its
normal position.
7. Drain the storage tank by undoing the connection to the
tank inlet and placing your drainage solution in position
as needed. Activate the relief valve lever, releasing the
vacuum and allowing air to ow into the tank as the water
drains out. Whilst the storage tank is draining, continually
monitor the process and most importantly where the
water is draining to. If at any time the draining needs to
be halted, simply de-activate the relief valve lever.
8. Once the storage tank has been fully drained, ush the
system by inserting a garden hose into the inlet of the
storage tank. Allow water to enter the inlet and drain
several times to ensure that all sediment is removed.
9. De-activate the relief valve, returning it to its normal
position.
10. Reconnect the inlet piping to the storage tank and then
turn on the isolation valve, located on the inlet piping to
allow mains water to refill the tank.
11. Turn on the nearest hot water tap to allow air to be
expelled from the system. Once water has begun to ow
freely from the tap for a period of time and all air has
been expelled from the system, close the hot water tap.
Maintaining your hot water system
Regularly inspect the air inlet and outlet of the heat pump.
Remove any foreign objects or blockages to allow the air to
ow freely.
Once the hot water system is in use, sediment can
accumulate in the system.
In order to maximise the life of the hot water system, it is
recommended that you ush the system every 5 years (more
frequently in poor water quality areas) according to the
below instructions:
Drainage or ushing of tank
To ush or drain the storage tank:
1. The power to the hot water system must be turned off at
the switchboard. Locate and turn off the circuit breaker
that supplies the hot water system or remove its fuse.
2. The water inside the tank will be extremely hot. Turn on
the nearest hot water tap and allow it to run until the
water coming out has reached a safe temperature for
draining.
3. Before draining the hot water system assess the best area
for the water to be directed (i.e. an outside drain) where
it will not damage to any property or cause an unsafe
situation to arise.
4. Turn off the mains water supply to the hot water system
using the isolation valve located on the inlet piping.
Maintenance

Kelvinator heat pump hot water systems maintenance 9
Anode replacement
There is a sacrificial anode installed in the storage tank (two
in the 450L model) designed to protect the vitreous enamel
coated steel tank from corrosion. The anode will slowly
oxidise while protecting the steel tank liner, reducing its
effectiveness in protecting the tank from rusting over time.
The anode must therefore be inspected and replaced (as
required) every 2 to 5 years depending on the supply water
quality, in order to keep the storage tank warranty valid. The
anode inspection and replacement must be conducted by
an authorised service person or plumber and be replaced by
a manufacturer authorised spare part, which can be sourced
from the Electrolux spare parts division (see contact details
in warranty section).
storage tank
sacrificial
anode
warning
If the hot water system is not used for two weeks or
more, a quantity of highly ammable hydrogen gas may
accumulate in the water heater. To dissipate this gas safely,
it is recommended that a hot tap be turned on for several
minutes or until discharge of gas ceases. 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 ame, or any electrical appliance operating
nearby. If hydrogen is discharged through the tap, it will
probably make an unusual sound as with air escaping.
12. Clean all lters in the hot water system including any that
may be located on individual fixtures as they may have
become blocked by debris during the process of ushing
and draining of the hot water system.
13. Check that all isolation valves that are designed to be
open during normal operation of the hot water system
are fully open.
14. The power to the hot water system can now be turned on
at the switchboard.
Note: Since the water inside the storage tank will now be
cold, it may take some time for the water to return to its
optimum operating temperature.
Pressure and temperature relief valve (PTR valve)
We recommend you gently operate the easing lever on the
relief valve at least once every 6 months. We also recommend
that this relief valve be checked regularly to ensure it is not
continually leaking or that the discharge piping connected to
the valve is not blocked.
warning
Failure to operate the relief valve easing gear at least once
every six months may result in the hot water storage tank
failing or in extreme cases exploding. Continuous leakage
of the water from the valve may indicate a problem with
the water heater.
Maintenance

10 troubleshooting Kelvinator heat pump hot water systems
Before calling for servicing or repair, check the following points:
Troubleshooting
Operation Problem Possible solutions
Part of normal operation
Short 'hissing' sound coming
from the heat pump
This is made by the heat exchanger as the temperature changes
inside. The heat expands and the cold contracts creating an audible
'hiss' sound. This is part of normal operation and not a product fault.
The sound of water ow
inside the heat pump
This is caused by the refrigerant and water owing inside the
heat pump. It may be louder during the first few minutes of
operation and is normal.
The fan is not running but the
rest of the heat pump is.
The fan speed variers according to the ambient temperature
and may stop entirely during operation for a period of time.
If the fan stops indefinitely while the rest of the heat pump is
operating, please call a service technician.
The heat pump is not
running.
The temperature inside the tank could be above the set point
and the unit has shutdown.
Under colder conditions the heat pump may shutdown in order
to go into defrost mode.
If the heat pump is wired up to an off-peak tarrif it will only run
when this supply is available.
The heat pump will not operate until it has 3 minutes of
uninterrupted power supply as part of its protection.
Small amount of water
leaking from underneath
heat pump or installed
drainage pipe.
Water may collect in the bottom tray of the heat pump due to
rain or condensation as part of the normal operation of the heat
pump. There is a drain hole on the bottom tray of the heat pump
that allows water to run out from underneath it and a drainage
pipe may be connected to this hole as part of the installation. If an
excessive amount of water is coming from this hole/drainage pipe
or anywhere else on the heat pump please call a service technician.
The heat pump is running but
the water is cold
If this heat pump hasn’t been on for long it will take some time
for the temperature inside the tank to get to its set-point level.
If the heat pump is working correctly the output connection on
the heat pump should be warm, indicating that it is pumping
warm water into the tank.
If the tank element is installed on off peak, check with your
power provider that you are on extended off peak or off peak 2
tarrif. This appliance is not designed for installation on standard
off peak or off peak 1.
Abnormal operation
Water is discharging from the
pressure relief valve on the
storage tank.
A small amount of water may discharge from the relief valve
regularly to compensate for water that has expanded upon
heating. However if a large volume of water is being discharged
with steam, then turn off power to the heat pump and call
a service technician. If there is a small but continuous leak,
operate the lever on the relief valve a couple of times to see if
the leak stops, if the leak continues call a service technician.
The water inside the tank is
cold and the heat pump is
not running.
Check that power is available at the switchboard supplying the
heat pump and that its circuit breaker is on or that the fuse is in.
If there is an isolator switch for the heat pump installed check
that this is not switched off. If the circuit breaker is tripped or
the fuse is blown call a service technician.
Power is available to the
heat pump but it is not
running and the water in
the tank is cold.
The heat pump may have shutdown due to a fault condition.
Turn power off to the heat pump for a few seconds and
then power it back on. This may reset the heat pump from
a protection mode (due to a power surge etc.). If this occurs
again, this may indicate a faulty or dangerous condition. Please
call a service technician.
There is low water pressure
or ow coming from the hot
taps or fixtures
Check that all isolation valves in the water system are fully
opened (e.g. isolation valve at mains water meter, isolation valve
at inlet to hot water system). Also check that all filters in the hot
water system are clean and free from blockages including any
filters on individual taps or fixtures.