AquaMAX 971 Series Technical Document

This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Owner’s Guide
and
Installation Instructions
Electric Domestic
Water Heater

An electronic copy of these Owner’s Guide and Installation Instructions
can be downloaded from aquamax.com.au.
PATENTS
This water heater may be protected by one or more patents or registered designs
in the name of Aquamax Australia Pty Limited or Rheem Australia Pty Ltd.
TRADEMARKS
®Registered trademark of Aquamax Australia Pty Limited or Rheem Australia Pty Ltd.
TM Trademark of Aquamax Australia Pty Limited or Rheem Australia Pty Ltd.
Note: Every care has been taken to ensure the accuracy in preparation of this
publication. No liability can be accepted for any consequences
which may arise as a result of its application.
AQUAMAX AUSTRALIA PTY LIMITED, A.B.N. 37 138 189 689,
www.aquamax.com.au
For Service Telephone 131031 AUSTRALIA

3
CONTENTS
HOUSEHOLDER
This booklet contains important information about your
new water heater, including terms of the Aquamax warranty.
We recommend you read pages 8 to 25,
and the terms of the Aquamax warranty on pages 4 to 7.
The other pages are intended for the installer but may be of interest.
Warranty.......................................................................................4
Safety, Warnings, Installation Notes .........................................8
About Your Water Heater..........................................................12
Maintenance Requirements......................................................17
Water Supplies...........................................................................19
Save A Service Call ...................................................................23
Installation..................................................................................26
Connections –Plumbing ..........................................................35
Connections –Electrical...........................................................40
Commissioning..........................................................................42
Draining The Water Heater .......................................................43

4
AQUAMAX ELECTRIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
ELECTRIC WATER HEATERS 971, 9W1, 991, 992 SERIES 160-400 MODELS
1.THE AQUAMAX WARRANTY –GENERAL
1.1 This warranty is given by Aquamax Australia Pty Limited ABN 37 138 189 689
of 463-467 Warrigal Road Moorabbin Victoria.
1.2 Aquamax offer a trained and qualified service network who will repair or
replace components at the address of the water heater subject to the terms of
the Aquamax warranty. Aquamax Service, in addition can provide preventative
maintenance and advice on the operation of your water heater. The Aquamax
Service contact number is 131031, with Contact Centre personnel available
24 hours, 7 days a week to take your call and if necessary to arrange a service
call for during normal working hours Monday to Friday (hours subject to
change).
1.3 For details about this warranty, you can contact us on 131031 or by email at
[email protected] (not for service bookings).
1.4 The terms of this warranty and what is covered by it are set out in sections 2
and 3 and apply to water heaters manufactured from 1st December 2018.
1.5 If a subsequent version of this warranty is published, the terms of that warranty
and what is covered by it will apply to water heaters manufactured after the
date specified in the subsequent version.
2.TERMS OF THE AQUAMAX WARRANTY AND EXCLUSIONS TO IT
2.1 Aquamax may reject a claim under this warranty in its sole discretion if:
a) You do not arrange for a major service to be conducted on your water
heater in the fifth year after installation, in accordance with Aquamax’s
recommendation in the Owner’s Guide and Installation Instructions; and
b) The fault giving rise to the warranty claim would have been detected and
rectified during that major service.
2.2 The decision of whether to repair or replace a faulty component is at
Aquamax’s sole discretion.
2.3 If you require a call out and we find that the fault is not covered by the Aquamax
warranty, you are responsible for our standard call out charge. If you wish to
have the relevant component repaired or replaced by Aquamax, that service
will be at your cost.
2.4 Where a failed component or cylinder is replaced under this warranty, the
balance of the original warranty period will remain effective. The replacement
does not carry a new Aquamax warranty.

AQUAMAX ELECTRIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
5
ELECTRIC WATER HEATERS 971, 9W1, 991, 992 SERIES 160-400 MODELS
2.5 Where the water heater is installed outside the boundaries of a metropolitan
area as defined by Aquamax or further than 25 km from either a regional
Aquamax branch office or an Accredited Aquamax Service Agent's office, the
cost of transport, insurance and travelling between the nearest branch office
or Aquamax Accredited Service Agent’s office and the installed site shall be
the owner’s responsibility.
2.6 Where the water heater is installed in a position that does not allow safe or
ready access, the cost of that access, including the cost of additional materials
handling and/or safety equipment, shall be the owner’s responsibility. In other
words, the cost of dismantling or removing cupboards, doors or walls and the
cost of any special equipment to bring the water heater to floor or ground level
or to a serviceable position is not covered by this warranty.
2.7 This warranty only applies to the original and genuine Aquamax water heater
in its original installed location and any genuine Aquamax replacement parts.
2.8 The Aquamax warranty does not cover faults that are a result of:
a) Accidental damage to the water heater or any component (for example:
(i) Acts of God such as floods, storms, fires, lightning strikes and the like;
and (ii) third party acts or omissions).
b) Misuse or abnormal use of the water heater.
c) Installation not in accordance with the Owner’s Guide and Installation
Instructions or with relevant statutory and local requirements in the State
or Territory in which the water heater is installed.
d) Connection at any time to a water supply that does not comply with the
water supply guidelines as outlined in the Owner’s Guide and Installation
Instructions.
e) Repairs, attempts to repair or modifications to the water heater by a person
other than Aquamax Service or an Aquamax Accredited Service Agent.
f) Faulty plumbing or faulty power supply.
g) Failure to maintain the water heater in accordance with the Owner's Guide
and Installation Instructions.
h) Transport damage.
i) Fair wear and tear from adverse conditions (for example, corrosion).
j) Cosmetic defects.

AQUAMAX ELECTRIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
6
ELECTRIC WATER HEATERS 971, 9W1, 991, 992 SERIES 160-400 MODELS
2.9 Aquamax may reject a claim under this warranty in its sole discretion if a third
party solar diverter is connected to the water heater.
2.10 Subject to any statutory provisions to the contrary, this warranty excludes any
and all claims for damage to furniture, carpet, walls, foundations or any other
consequential loss either directly or indirectly due to leakage from the water
heater, or due to leakage from fittings and/ or pipe work of metal, plastic or
other materials caused by water temperature, workmanship or other modes of
failure.
2.11 If the water heater is not sized to supply the hot water demand in accordance
with the guidelines in the Aquamax water heater literature, any resultant fault
will not be covered by the Aquamax warranty.
3.WHAT IS COVERED BY THE AQUAMAX WARRANTY
FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT
3.1 Aquamax will repair or replace a faulty component of your water heater if it fails
to operate in accordance with its specifications as follows:
What components
are covered
The period from the
date of installation
in which the fault
must appear in
order to be covered
What coverage
you receive
971, 9W1, 991, 992 series 160-400 models
All components
(all installations)
Year 1
Repair and/or replacement of
the faulty component, free of
charge, including labour.
The cylinder
(if the water heater is
installed in a single-family
domestic dwelling)
Years 2 to 10
Replacement cylinder, free of
charge. Installation and repair
labour costs are the
responsibility of the owner.

AQUAMAX ELECTRIC MAINS PRESSURE
WATER HEATER WARRANTY - AUSTRALIA ONLY
7
ELECTRIC WATER HEATERS 971, 9W1, 991, 992 SERIES 160-400 MODELS
4.ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY
4.1 To be entitled to make a claim under this warranty you need to:
a) Be the owner of the water heater or have consent of the owner to act on
their behalf
b) Contact Aquamax Service without undue delay after detection of thedefect
and, in any event, within the applicable warranty period.
4.2 You are not entitled to make a claim under this warranty if your water heater:
a) Does not have its original serial numbers or rating labels.
b) Is not installed in Australia.
5.HOW TO MAKE A CLAIM UNDER THIS WARRANTY
5.1 If you wish to make a claim under this warranty, you need to:
a) Contact Aquamax on 131031 and provide owner’s details, address of the
water heater, a contact number and date of installation of the water heater
or if that’s unavailable, the date of manufacture and serial number (from
the rating label on the water heater).
b) Aquamax will arrange for the water heater to be tested and assessed on-
site.
c) If Aquamax determines that you have a valid warranty claim, Aquamax will
repair or replace the water heater in accordance with this warranty
5.2 Any expenses incurred in the making of a claim under this warranty will be
borne by you.
6.THE AUSTRALIAN CONSUMER LAW
6.1 Our goods come with guarantees that cannot be excluded under the Australian
Consumer Law. You are entitled to a replacement or refund for a major failure
and for compensation for any other reasonably foreseeable loss or damage.
You are also entitled to have the goods repaired or replaced if the goods fail to
be of acceptable quality and the failure does not amount to a major failure.
6.2 The Aquamax warranty (set out above) is in addition to any rights and remedies
that you may have under the Australian Consumer Law.

8
SAFETY, WARNINGS, INSTALLATION NOTES
It is important you read the following safety and warnings information.
SAFETY AND WARNINGS
•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, or by children. Children
should be supervised to ensure they do not interfere with the water heater.
•If the electrical conduit to the water heater is damaged, it must be replaced
by a qualified person in order to avoid a hazard. Phone Aquamax Service to
arrange for an inspection.
•This water heater uses 220 V –240 V a.c. power for the electrically operated
components. The removal of the front cover(s) will expose 220 V –240 V a.c.
wiring. It must only be removed by a qualified person.
•This water heater is supplied with a thermostat, an over-temperature cut-out
and a combination temperature pressure relief valve. These devices must not
be tampered with or removed. The water heater must not be operated unless
each of these devices is fitted and is in working order.
The Aquamax warranty may not cover faults if relief valves or other
safety devices are tampered with or if the installation is not in
accordance with these instructions.
•DANGER: The operation of the over-temperature cut-out on a thermostat
indicates a possibly dangerous situation. If the over-temperature cut-out
operates, it must not be reset and the water heater must be serviced by a
qualified person.
•The water heater will operate until a water temperature of 60°C to 70°C is
reached, depending upon the thermostat setting.
Refer to “How Hot Should The Water Be?” on page 12 and “Temperature
Adjustment” on page 13.
•The lever on the temperature pressure relief valve and expansion control
valve (if fitted) requires to be operated every six (6) months to clear any
deposits and to ensure the valve and its drain line are not blocked.
Refer to “Relief Valves” on page 9 and “Minor Maintenance Every Six
Months” on page 18.
•For continued safety of this water heater it must be installed, operated and
maintained in accordance with the Owner’s Guide and Installation
Instructions.

SAFETY, WARNINGS, INSTALLATION NOTES
9
•Servicing of a water heater must only be carried out by qualified personnel.
Phone Aquamax Service.
•Only a person qualified to install or service a water heater should drain the
water heater, if this is required.
•Do not modify this water heater.
RELIEF VALVES
Temperature Pressure Relief Valve
This water heater incorporates a temperature
pressure relief valve located near the top of the
water heater. This valve is essential for the water
heater’s safe operation.
It is possible for the valve to discharge a quantity
of water through the drain line during each
heating period. This quantity should be equal to
approximately 1/50 of the hot water used, as
water expands by this volume when heated.
Expansion Control Valve
In many areas, including South Australia,
Western Australia and scaling water areas, it is
mandatory an expansion control valve is fitted to
the cold water line to the water heater.
The expansion control valve will discharge the
quantity of water from its drain line during the
heating period instead of the temperature
pressure relief valve as it has a lower pressure
rating.
Valve Operation
Continuous leakage of water from either valve
and its drain line may indicate a problem with the
water heater. Refer to “Temperature Pressure
Relief Valve or Expansion Control Valve
Running” on page 24.
Warning: Never block the outlet of either valve or their drain lines for any
reason. A relief valve drain must be left open to atmosphere, and be installed in
a continuously downward direction.
In locations where water pipes are prone to freezing, the relief valve drain line
must be insulated and not exceed 300 mm in length before discharging into a
tundish through an air gap.
lift until water
flows from the
drain line –
lower gently
drain
line

SAFETY, WARNINGS, INSTALLATION NOTES
10
Operate the easing lever on the temperature pressure relief valve and expansion
control valve once every six (6) months to clear any deposits and ensure the
valve and its drain line are not blocked. It is very important the lever is raised
and lowered gently. Refer to “Minor Maintenance Every Six Months” on
page 18.
Warning: Water discharged from the temperature pressure relief valve drain
line will be hot. Exercise care to avoid any splashing of water by standing clear
of the drain line’s point of discharge when operating either valve’s easing lever.
DANGER: Failure to operate the easing lever on the relief valve once every
six (6) months may result in the water heater cylinder failing, or under certain
circumstances, exploding.
If water does not flow freely from the drain line when the lever is lifted, then the
water heater must be checked. Phone Aquamax Service to arrange for an
inspection.
The temperature pressure relief valve should be replaced at intervals not
exceeding five (5) years and the expansion control valve should be checked for
performance or replaced at intervals not exceeding five (5) years. The checking
of the valves performance or replacement should occur more frequently in areas
where there is a high incidence of water deposits. Refer to “Water Supplies” on
page 19.
INSTALLATION NOTES
This water heater must be installed:
•by a qualified person,
•in accordance with the installation instructions,
•in compliance with the Plumbing Code of Australia (PCA) and Plumbing
Standard AS/NZS 3500.4,
▪This water heater is designed for indoor or outdoor installation.
▪This water heater is intended to be permanently connected to the water
mains and not connected by a hose-set. A braided flexible hose or semi-
flexible connector may be used for connection to the water heater, where
permitted by AS/NZS 3500.4.
•in compliance with the Australian / New Zealand Wiring Rules AS/NZS 3000,
▪Isolation switches must be installed in the electrical circuit to the water
heater in accordance with the Wiring Rules, so the water heater can be
switched off.