Istore 180L User manual

INSTALLATION MANUAL 180L / 270L
istore.net.au
iStore - Installation Manual - Aug 2023

iStore - Installation Manual - Aug 2023
2
Important Information
• This manual includes all the necessary information regarding the installation and
maintenance of this product. Please take the time to read it through before operating.
• When installing the hot water cylinder, please follow the instructions as documented in
this manual.
• Once the installation is complete, check that all connections are secure and the unit is
full before the power is turned On.
• The Installer is to explain to the end user how to operate and maintain the unit in
accordance to this Installation Manual.
• iStore will not be held responsible for any damages or injuries caused by the incorrect
installation of this hot water system.
• It is important that the installation and operational instructions laid out in this manual
are strictly adhered to.
• A maintenance programme must be carried out as recommended in this manual.
Failure to comply with these recommendations will void the warranty.
• This manual could be subject to change without prior notice, if it is felt that product
improvements are to be carried out.

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Content
1. Safety Precautions p4
2. Specications p7
2.1) Dimensions 270L p7
2.2) Dimensions 180L p8
2.3) Performance parameters p9
3. Safety Features p10
4. Installation
4.1) Installation Diagram p12
4.2) Transportation p13
4.3) Installation Space p14
4.4) Multi-System Conguration p16
5. Intelligent Operation Modes p17
5. Functionality p18
5.1) Function of the LED Display p18
5.2) Temperature Settings p22
5.3) Setting the Timer p23
5.4) Setting the Timer p24
5.5) Setting the Timer p25
5.6) Timer Settings Summary p26
5.7) Cancelling the timer p28
6. Maintenance and repair p31
6.1) Typical Failure and Solutions p31
7. Troubleshooting p33

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Safety Precautions
To prevent personal injury and avoid causing damage to the unit, please take the time to
read the information documented in this manual.
ICON DESCRIPTION
A wrong operation may lead to serious injury or death
A wrong operation may lead to injury or loss of material
Prohibited (Next to this icon)
Compulsory - The listed action shall be followed
Please pay attention to what is indicated
The iStore shall be installed in strict accordance with local wiring regulations
and equipped with a power supply containing a ground/earth conductor.
The iStore is not intended for use by children, or persons with reduced physical
sensory or mental capabilities, lacking relevant skill or experience, without
suitable supervision.
The iStore must be installed by a licensed trade person and in accordance with:
• This Installation manual
• AS/NZS 3500.4 - “National Plumbing and Drainage Code Hot Water Supply
Systems-Acceptable Solutions“
• AS/NZS 3000 - Wiring Rules
• Local authority regulations
• BCA - Building Codes of Australia
• All local Occupational Health and Safety (OH&S) Regulations
Before installation, check the unit for any damage
Please ensure that the unit and power connections have a good earth. Failure
to do this may cause an electrical shock
Do not drill any holes or screws into the outer casing. Drilling of any holes will
void the warranty
WARNING
ATTENTION
INSTALLATION WARNING

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The unit CANNOT be installed near ammable gas
Ensure that the position of the unit is level and in accordance with
AS/NZ 3500.4
In accordance with AS/NZS 3000 Wiring Rules this unit requires an
appropriately sized circuit and protection to meet the demand of
the chosen size unit. Refer to the Rated Current Input in section 2.3
page 9 and/or the tank label.
Do not put ngers or any other objects into the fans. Children
should be kept clear of this appliance
In the event the iStore has a major malfunction, please shut the
power o and contact your iStore Installer or iStore directly
If the iStore needs to be relocated or installed again, only use an
authorised dealer or qualied persons
It is prohibited for the end user to repair the unit themselves,
unless qualied. Failure to do so may lead to serious injury or, and
damage to the unit
Should the iStore need to be repaired, only use an authorised
dealer or qualied persons
Under no circumstances should water be sprayed directly into the
unit when cleaning. Only external surfaces to be cleaned with a
soft rag by non-qualied persons.
DANGER - High Temperature
INSTALLATION WARNING
RELOCATION OR REPAIR
CLEANING WARNING
Functionality WARNING
Safety Precautions
Unit Location
Unit Placement
Electrical
Connection
Shut O Power
Safety Warning
Important
Important
Shut O Power
Prohibited

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Electrical Connection:
The installation of the iStore must strictly follow the AS/NZS 3000 wiring rules and local wiring
regulations, ensuring that a licensed electrician deems the circuit suitable. Adequate overload
protection and a residual current device of appropriate size should be installed. Opeak and
controlled load circuits are acceptable as long as there is a manual override option for maintenance
and support during business hours.
500kPa Pressure Reduction Valve:
Pressure Reduction Valve (PRV 500) - A pressure reduction valve of 500kPa maximum must be tted
immediately downstream of the cold water non-return isolation valve. Failure to install a pressure
reduction valve will void the warranty. Please note cold water supply line to the tempering valve must
be run after the PRV to ensure equal supply pressure to the tempering valve. This valve is not required
shall a 500kPa PRV be installed at the water main supply to the property.
Note: In SA, WA & QLD (and some other areas of other states subject to local authority regulations) it is a requirement that
an expansion control valve be tted between the non-return isolating valve and the water heater.
iStore Basics
How it works
1. A fan draws in air, containing heat energy,
across the evaporator.
2. The evaporator turns the liquid refrigerant
into a gas.
3. The compressor pressurises the refrigerant
into a hot gas.
4. The hot gas inside the condenser coil heats
the water inside the coil-wrapped tank.
5. The refrigerant reverts back to a liquid after
heating the water and continues to the
evaporator for the process to start again.
6. The cycle continues until the set target
temperature is achieved.
As water is used in the home, the cycle will
restart once the temperature in the
lower section of the tank has dropped
11 degrees below the target temperature.
1
2
3
4
6
5

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Specifications
2.1 Dimensions 270L
Dimensions
Height (mm) 1955
Diameter (mm) 640
Height to water inlet (mm) 99
Height to water outlet (mm) 1194
Hot water condensation (mm)
Height to PTR Valve (mm)
Height to Anode 1094
Net weight (Kg) 130
1955
1194 1194
1094
640
99
Unit: mm
HW outlet
HW condensation PTR Valve
Anode
Cold water inlet
Overall height
Overall width
270L iStore
Top View
685

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Specifications
2.2 Dimensions 180L
Dimensions
Height (mm) 1957
Diameter (mm) 540
Height to water inlet (mm) 60
Height to water outlet (mm) 1240
Hot water condensation (mm)
Height to PTR Valve (mm)
Height to Anode 1140
Net weight (Kg) 93
1956
1240
1240
1140
540
60
Unit: mm
HW outlet
HW condensation PTR Valve
Anode
Cold water inlet
Overall height
Overall width
180L iStore
Top View 583

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Specifications
2.3 Performance Parameters
• Operating water pressure 0.15 to 0.7MPa
• Ambient temperature is -5~43o C (compressor)
• The max temperature of water tank is 75o C
• Maximum inlet water pressure is 500kPa
• PTR Valve setting is 850kPa
• ECV Valve setting is 700kPa (if required)
Value 180L 270L
Heating capacity kW 1.7 3.6
Water tank capacity L180 270
Compressor power input kW 0.43 0.94
Compressor running current A 1.8 3.9
Power supply V 240 240
Compressor number Quantity 1 1
Compressor Type Rotary Rotary
Rated outlet water Temp. C 60 60
Air volume m3/h 700 450
Noise dB(A) 45 @1m 48 @ 1m
Water inlet/outlet size inch 3/4 3/4
Auxilary e-heater kW 1.5 1.5
Rated Power Input kW 2.2 3.1
Rated Current Input A 9.2 13
Hot and Cold Water Connections
All plumbing connections must be performed by a licensed plumber in accordance with local authority regulations.
The cold water inlet connection to the storage tank is 3/4 FI. All pipes and valves must be insulated as per the current AS/NZ 3500.4 Section
8.2. The cold water inlet requires the following valve train please refer to system diagram page for correct installation.
• Approved isolating/non return valve
• 500 kPa Pressure Reduction Valve (PRV) valve
• 700 kPa Expansion Control Valve (ECV)
The maximum inlet water pressure rating is 750kPa. Cold water supply pressures exceeding 500kPa a 500kPa Pressure Reduction valve
shall be installed immediately downstream from the Duo valve.
The hot water outlet from the tank is ¾ inch FI. All hot water pipes must be insulated by UV stable & appropriately rated insulation.
Working Range

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Safety Features
To prevent unwanted changes to your iStore settings. The Smart Screen will automatically lock after 3 minutes.
If the unit stops and you restart the unit or turn it on by the manual switch, the unit will not start to run again for
approx. 3 minutes. This is a protection feature to safeguard the compressor.
In the heating mode the unit will defrost automatically, maximizing the heating eciency
(Lasting 2 - 10 minutes). The fan motor will stop running whilst the unit is defrosting.
In order to use the unit correctly, please operate the unit at ambient temperature of -7º ~ 50º Celsius.
If the water temperature reaches 85º C, the power of unit will be cut o (refer to manual to reset).
An 850kPa, 10kW and 99°C PTR valve is used on the iStore water tank, which is located on the side of the
water tank and is essential for its safe operation. The PTR valve is designed to allow 3-5% of total tank volume
to discharge during heating to allow for hot water expansion. Water may drip from the discharge pipe of the
pressure-relief valve. The discharge pipe must be left open to the atmosphere under all circumstances. PTR
Valve the discharge pipe shall be installed downwards and with discharge pipes in a frost free environment.
Refer page 12 for how to connect. Seal the thread with approved sealant such as Teon tape and screw the
valve into the correct opening and leave the valve outlet pointing downwards. The discharge pipe diameter is
permitted to be run in 15mm copper providing the length of discharge pipe does not exceed 9m.
During normal operation, condensation occurs from the transfer of air across across the evaporator coil. This
process is drawing humidity from the air and creates condensation/water droplets on the coils, which in turn is
captured in the fully moulded condensate tray and discharged through the condensate drain line. In locations
with humidity greater than 80%, up-to 5 litres per day can be expected under normal operating conditions.
Smart Screen Lock
Start up delay protection
Defrost mode
Working conditions
Thermal cut-o saftey device
Condensation
Pressure Temperature Relief Valve (PTR)
DANGER: Failure to operate the relief valve easing gear at least once every six months may result in the water
heater exploding. Continuous leakage of water from the valve may indicate a problem with the water heater.

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HOT WATER CAN CAUSE SERIOUS INJURY
WARNING - Hot water is dangerous! As a safety precaution, young children
should always be supervised around hot water xtures
THIS WATER HEATER IS ONLY INTENDED TO BE OPERATED BY PERSONS WHO HAVE THE EXPERIENCE
OR THE KNOWLEDGE AND THE CAPABILITIES TO DO SO. THIS WATER HEATER IS NOT INTENDED TO BE
OPERATED BY PERSONS WITH REDUCED PHYSICAL, SENSORY OR MENTAL CAPABILITIES I.E. THE INFIRM
AND CHILDREN.
As solar water heaters can generate water temperature in excess of 50o C, regulations require that an
approved solar rated tempering valve shall be installed in accordance with the valve manufacturer’s
instructions. This is required to prevent water temperatures supplied to the house exceeding a preset
safe maximum. The tempering valve is connected to the hot water outlet lines. The valve must be
tted by an authorised plumber at the time of installation or in retrotting to existing systems.
CHECK THE WATER TEMPERATURE BEFORE USE, SUCH AS WHEN ENTERING A SHOWER OR FILLING A
BATH OR BASIN, TO ENSURE IT SUITABLE FOR THE APPLICATION AND WILL NOT CAUSE SCALD INJURY.
Hot water systems can store water at temperatures that can cause scalding. Water temperatures over
50oC can scald and care needs to be taken to ensure that injuries do not occur through incorrect use
of your water heater.
If the water heater is left unused for two weeks or more, a small quantity of hydrogen gas (which
is HIGHLY ammable) may accumulate in the top water cylinder. To dissipate this gas safely it is
recommended that a sink or bath hot tap be turned on to dispel a couple of litres of water. During
this procedure there should be no smoking, open ames or any electrical appliances such as washing
machines or dish washers operating nearby. If Hydrogen is discharged through the tap, it will make a
sound like air escaping.
GENERAL SAFETY INSTRUCTIONS
The installation of the iStore solar hot water systems requires the expertise of a licensed
professional. The installation process must adhere to the guidelines set forth in the National
Plumbing code (AS/NZS 3500.4), Australian Electrical Wiring Rules (AS/NZS 3000), as well as all
applicable local plumbing and electrical regulations.
The electrically operated components of this water heater operate on 240v AC power.
The removal or attempted alteration of any electrical component must be conducted by a qualied
electrical service person.
Care should be taken to avoid coming into contact with any pipe work or xtures associated with the
water heater.
For continued safety of this appliance, it must be installed, operated and maintained in accordance with
the manufacturers instructions.

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COLD WATER INLET
Duo/NRI valve15mm Brass Tee Piece
PTR 850kPa Pressure
Temperature Relief
Solar Tempering Valve
PRV 500kPa Pressure Reduction Valve
Condensate Drain Hot Water Outlet
Anode
ECV 700kPa Expansion
Control Valve (If required)
HOT LINE TO HOUSE
RIGHT SIDE TANK
Under no circumstances
shall the condensate drain
line and PTR/ECV discharge
line be coupled together into
a single common line.
ATTENTION: The PTR valve attached with the unit must be installed, failure to
do so will cause damage to the unit, and possible personal injury.
Do not use stainless steel fittings to connect directly with other metals to
prevent galvanic corrosion.
Installation
4.1 Installation Diagram - Left Hand Install
Important Information
• The specication of the water inlet and outlet thread is RBSP3/4 (internal thread).
• The specication of the PTR valve connecting thread is RBSP3/4 (internal thread).
• The specication of the anode and the drain port is GBSP3/4 (internal thread).
• Condensate port connection thread is BSP1/2 (internal thread).
• Condensate drain shall discharge to an approved discharge point.
Filling and Commissioning the iStore Hot Water System
1. Turn on the cold water supply to the tank and open a hot water tap preferably laundry tap without lter as
existing sediment may partially block pre-existing water saving devices.
2. Leave tap open until all air is bled, then turn o hot water tap.
3. Activate PTR Valve (Pressure relief valve) to ensure system is fully bled of all air.
4. Once the system is fully pressurised with water, thoroughly check all ttings, connections and pipework for
water leaks.

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Installation
4.2 Transportation
As a rule, the unit is to be stored and/or transported in its shipping container in the upright posi-
tion and without water charge. For transport over short distance, and provided due care is ex-
ercised, an inclination angle of up to 30 degree is permitted. Both during transport and storage,
ambient temperatures of -5º to 50º are permissible.
Transport Using a Forklift
When transported by a fork lift, the unit must remain mounted on the pallet. The lifting rate
should be kept to a minimum. Due to its top-heaviness, the unit must be secured against tipping
over. To prevent any damage, the unit must be placed on a level surface!
Manual Transport
For the manual transport, the wooden pallet can be used for bottom part. Using ropes or carrying
straps, a second or third handling conguration is possible. With this type of handling, care must
be taken that the max. Permissible inclination angle of 60 degree is not exceeded. If transport in
an inclined position cannot be avoided, the unit should be placed into operation one hour after it
has been moved into nal position.
The unit should not be laid at during vehicle transportation.
60º
CAUTION: TOP HEAVY. HIGH CENTRE OF GRAVITY

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Installation
4.3 Installation Space
Before installation, please ensure that you leave the space as shown below for maintenance.
Tank Location
• Place tank on level surface and in accordance with building and plumbing codes.
• Avoid positioning near bedrooms or neighbours bedrooms.
• Optimum performance for tank location is North,
West or East side of the building.
• Ensure the minimum space between the unit
and walls and objects are per specications
illustrated in Diagram 1a/2a and Diagram 1b/2b.
• Unit shall be located as close as possible to
the most frequently used hot water outlet.
640
500
50
1000
N
unit: mm
Air Inlet Air InletAir Outlet Air Outlet
270L iStore 180L iStore
Front
540
Diagram 1a. Top View Diagram 2a. Top View
Front
50
1000 500

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Installation
unit: mm
270L iStore 180L iStore
Air Inlet Air Outlet
500
1000
300 Air InletAir Outlet
500
300
1000
Diagram 1b. Front View Diagram 2b. Front View

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Cable Connection
• This unit requires an isolating point as required by local by laws
• If the power cord is damaged, it must be replaced by a qualified electrician
• Means for disconnection must be incorporated in the xed wiring in accordance with the
wiring rules
• Local codes including but not limited to AS/NZS 3000 must be adhered to for all electrical work
and be undertaken by a licenced electrician
Inspection Before Trial Running
• Make sure the unit is full of water
• Check the water supply to the tank and pipe connections for possible leaks
• Check that all power connections are secure before switching on
Trial Running
• Switch on the unit using the controller
• In the case of any unusual noise, switch the power o and consult your iStore technician
• The parameters have been preset to a temperature of 60 degrees
Seismic Restraints
• Where required the unit must be braced with with seismic restraints according to local
standards. Only applicable in earth-quake zones
Air Flow
• The iStore requires a minimum of 120 cubic meters of natural ventilation to operate eciently
• An example would be an area of 8.0m x 6.3m x 2.4m (a large double garage or open space
under a home)
• External installation is the preferred method to capture the warm ambient air temperature
Air discharge will always be cold
• If unit is being installed internally, provision for fresh air to be introduced shall be provided
450 / 700 m3/h minimum requirement
ECV
HOT WATER RETURN
TD
CHV PLV
IV (TYP)
IV (TYP)
Installation
4.5 Multi-System Configuration
WATER SUPPLY
HOT WATER SUPPLY TO BUILDING

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The energy ecient iStore is fast becoming one of the most popular ways of
heating your homes hot water. iStore’s technology has been around for decades.
The refrigeration industry has been utilising this incredibly ecient form of
producing heating capacity ever since the rst refrigerant gas was developed way
back in 1928.
Did you know?
Economic Heating Mode (ECO)
For Australian conditions ECO mode is the most appropriate, the onboard computer always
monitors the surrounding temperature, incoming water and outgoing water, heat transfer
capabilities and adjusts its operation to suit.
Vacation Mode
For use when away on holidays, enter the date of your return and the smart iStore will reduce
usage to the government mandated weekly disinfect cycle only. Vacation mode reduces energy
consumption while you are away.
Electric Element Heating Mode
The electric element will heat the water to the pre-set temperature and turn o once this
is reached. The electric element heating mode is classied as a one-shot boost and will
automatically turn o once the target temperature is reached.
Intelligent Mode - (overseas models)
Hybrid Heating Mode - (overseas models)
Intelligent Operating Modes
The Federal Government Clean Energy Regulator specifies how the iStore compressor hot
water systems must operate in Australia and as such how the computer control operates.
Intelligent and Hybrid modes are for overseas models and effectively overridden to Economic
(ECO) mode in Australia.

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Functionality
5.1 The Function Diagram Of The LED Display
Important - If the iStore display does not detect activity for 15 seconds the screen will
automatically lock to prevent any unwanted changes. To unlock the screen, simply press
and hold the power buon for 5 seconds.
Function of Key
NO.ButtonName Function
1
2
3
4
5
6
ON/OFF
Mode
Electric
Heater
Up
Down
Turn on/off the unit.
Switch unit running modes or save setting parameters.
Set the clock or the timer.
Turn on/off the electric heater or switch fan modes.
Move up or increase parameter values.
Move down or decrease parameter values.
Clock
Main display
area
Auxiliary display
area
1 2 3 4 5 6

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Functionality
Electric
heater
Fan
Shows that the electric heater is on.
Shows that the fan is on and the speed of the fan.
Set temp.
achieved
Shows that the water temperature has reached the target
point and the unit shut off automatically.
Timer & ON
Timer & OFF
Shows that the unit will be turned off by the timer
automatically.
Shows that the unit will be turned on by the timer
automatically.
Minute
Shows that the main display area displays the minute.
Second
Shows that the main display area displays the second.
Centigrade Shows that the temperature in Main display area or Auxiliary
display area is in C.
Fahrenheit Shows that the temperature in Main display area or Auxiliary
display area is in F.
Parameter
setting Shows that the parameter is adjustable.
Lock Shows that the keyboard is locked.
Status
icon What it means
Hybrid
Heating
Vacation
Shows that the unit is in Hybrid Heating mode.
Shows that the unit is in Vacation mode.
Eco Mode
TemperatureShows that the temperature is non-adjustable
(measured value).
Name
Shows that the unit is in Eco Heatingmode.

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Press , hold for 2 seconds
and release.
Functionality
Turn ON/OFF the unit
Press , hold for 2 seconds and release, the unit will turn on and the LED will display the
internal water temperatures.
Press , hold for 2 seconds and release, the unit will turn o and the LED will display the
OFF status.
Top tank temperature
Heating Mode
Bottom tank
temperature