Rheem Stellar 8A0 330 Document technique

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

Gas Domestic Outdoor Water Heater

8A0 330 stainless steel model

PATENTS

This water heater may be protected by one or more patents or registered designs

in the name of Rheem Australia Pty Ltd or Aquamax Australia Pty Limited.

TRADEMARKS

®Registered trademark of Rheem Australia Pty Ltd.

TM Trademark of 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.

Warning: Upon completion of the installation and commissioning of the

water heater, leave this guide with the householder or responsible officer.

DO NOT leave this guide inside of the cover of the water heater, as it may

interfere with the safe operation of the water heater or ignite when the water

heater is turned on.

CONTENTS

HOUSEHOLDER –We recommend you read pages 4 to 22.

The other pages are intended for the installer

but may be of interest.

About Your Water Heater............................................................4

Regular Care ..............................................................................12

Water Supplies...........................................................................15

Save A Service Call ...................................................................19

Installation..................................................................................23

Connections –Plumbing ..........................................................32

Commissioning..........................................................................36

Lighting The Water Heater........................................................40

Draining The Water Heater .......................................................44

Warranty.....................................................................................46

ABOUT YOUR WATER HEATER

WATER HEATER APPLICATION

This water heater is designed for use in a single family domestic dwelling for

the purpose of heating potable water. Its use in an application other than this

may shorten its life.

MODEL TYPE

The Rheem®water heater model you have

chosen is suitable for outdoor installation only.

The model is a high efficiency, quick recovery

8A0 series Rheem Stellar™330 stainless

steel water heater.

Water is stored in a stainless steel cylinder

and heated by a gas burner located under the

cylinder. The heat produced by the burner is

transferred to the water through the base, top

and side walls of the storage cylinder with flue

baffle rings capturing heat to improve

efficiency. The gas supply to the burner is

controlled by the thermostat so the water is

heated to a constant temperature.

Automatic safety controls are fitted to the water heater to provide safe and

efficient operation.

HOW HOT SHOULD THE WATER BE?

The water heater features a user adjustable

thermostat, which allows you to personally

choose the most suitable temperature for your

hot water needs. Refer to “Temperature

Adjustment” on page 7.

To meet the requirements of the National

Plumbing Standard the temperature of the

stored water must not be below 60°C.

Note: AS 3498 requires that a water heater

provides the means to inhibit the growth of

Legionella bacteria in potable water. This

water heater can satisfy this AS 3498

requirement provided it is operating and the

thermostat setting is 60°C or higher, including

when it is used as an in-series booster water

heater for a solar water heater.

maximum thermostat

setting

maximum

recommended supply

temperature to

bathrooms and

ensuites

minimum

recommended stored

water temperature

ABOUT YOUR WATER HEATER

HOTTER WATER INCREASES THE RISK OF SCALD INJURY

This water heater can deliver water at temperatures which can cause scalding.

Check the water temperature before use, such as when entering a shower or

filling a bath or basin, to ensure it is suitable for the application and will not

cause scald injury.

We recommend and it may also be required by regulations that an approved

temperature limiting device be fitted into the hot water pipe work to the

bathroom and ensuite when this water heater is installed. This will keep the

water temperature below 50°C at the bathroom and ensuite. The risk of scald

injury will be reduced and still allow hotter water to the kitchen and laundry.

Note: Where a temperature limiting device is fitted to the hot water pipe work

after a Rheem Stellar 330 stainless steel model, the dial of the water heater‟s

adjustable water mixing valve must be set on position „5‟. Refer to “Adjustable

Water Mixing Valve”on page 7.

MAINS PRESSURE

The water heater is designed to operate at mains pressure by connecting

directly to the mains water supply. If the mains supply pressure in your area

exceeds that shown on page 26, a pressure limiting valve must be fitted. The

supply pressure should be greater than 350 kPa for true mains pressure

operation to be achieved.

PRECAUTIONS

Where damage to property can occur in the event of the water heater leaking,

the water heater must be installed in a safe tray. Construction, installation and

draining of a safe tray must comply with AS/NZS 3500.4 and all local codes

and regulatory authority requirements.

The water heater must be maintained in accordance with the Owner‟s Guide

and Installation Instructions. Refer to “Regular Care” on page 12.

If this water heater is to be used where an uninterrupted hot water supply is

necessary for your application or business you should ensure that you have

back up redundancy within the hot water system design. This should ensure

the continuity of hot water supply in the event that this water heater were to

become inoperable for any reason. We recommend you seek advice from your

plumber or specifier about your needs and building back up redundancy into

your hot water supply system.

ABOUT YOUR WATER HEATER

WARNING

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.

SAFETY

This water heater is supplied with a thermostat, an over-temperature cut-out, a

thermocouple 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.

Warning: For continued safety of this water heater it must be installed,

operated and maintained in accordance with the Owner‟s Guide and Installation

Instructions.

The Rheem 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.

Do not store flammable or

combustible materials near the water

heater. Flammable liquids (such as

petrol), newspapers and similar articles

must be kept well away from the water

heater and the flue terminal.

Do not use aerosols, stain removers

and household chemicals near the

water heater whilst it is working. Gases

from some aerosol sprays, stain

removers and household chemicals

become corrosive when drawn into a

flame.

Do not store swimming pool chemicals, household cleaners, etc., near

the water heater.

Do not place anything on top of the water heater or in contact with the flue

terminal. Ensure the flue terminal is not obstructed in any way at any time.

ABOUT YOUR WATER HEATER

TEMPERATURE ADJUSTMENT

This water heater has two forms of water temperature adjustment:

A temperature dial on the gas control (thermostat) –this controls the water

temperature inside of the storage cylinder.

An adjustable water mixing valve –this controls the delivered water

temperature from the water heater.

Gas Control Temperature Dial

The temperature dial is on the gas control, located behind the access cover on

the lower front of the water heater.

The thermostat is adjustable up to

approximately 75°C. Each number represents

a temperature difference of approximately

10°C. When aligned with the temperature dial

position indicator on the gas control body, a

setting of mid way between „3‟ and „4‟ will

normally maintain the water temperature at

about 60°C.

To increase the water temperature to 75°C,

turn the gas control knob anticlockwise to a

setting of „5‟. Refer to “Hotter Water Increases

the Risk of Scald Injury” on page 5.

Adjustable Water Mixing Valve

The Rheem Stellar 330 stainless steel model has a user adjustable water

mixing valve. The adjustment dial is located on the left hand side of the water

heater, between the cold water inlet and hot water outlet connections.

The valve can be adjusted to increase or decrease the hot water temperature

delivered by the water heater by mixing cold water from the water supply with

hot water from the storage cylinder. This can allow hot water to be delivered

below 50°C whilst the stored water is maintained at or above 60°C.

Warning: This adjustable water mixing valve cannot be used as the

approved temperature limiting device, if one is required by regulations to be

installed into the hot water pipe work to the bathroom and ensuite or other

ablution areas.

Adjusting the dial of the adjustable water mixing valve to position „5‟ will allow

water to be delivered at the stored temperature of the water heater (no mixing

with cold water). Each number represents a temperature difference of

approximately 5°C, with an incremental increase of cold water mixing with the

hot water to reduce the delivered water temperature.

temperature dial position indicator

ABOUT YOUR WATER HEATER

Note: When a temperature limiting device is fitted to the hot water pipe work

downstream of a Rheem Stellar 330 stainless steel model or if the water heater

is installed as part of a circulated flow and return system, the dial of the water

heater‟s adjustable water mixing valve must be set on position „5‟.

Setting the Adjustable Dial

To set the adjustable dial:

1. Ensure the water in the storage

cylinder is at the thermostat‟s selected

temperature.

Turn on a hot tap and allow to run

until the burner comes on.

Turn off the hot tap and wait for

the burner to extinguish.

The water temperature is now up

to the thermostat setting.

2. Close the cold water isolation valve at

the inlet to the water heater.

Caution: The cold water supply to the water heater must be turned off and

pressure relieved from the water heater prior to adjusting the water mixing

valve. Damage can result to the valve if it is adjusted whilst subject to

mains pressure.

3. Either open a hot water tap or operate the easing lever on the temperature

pressure relief valve (refer to “Temperature Pressure Relief Valve” on

page 14) and let the water run until there is little or no flow. Close the tap

or lower the easing lever gently.

This will relieve the pressure in the system.

4. Insert a large flat bladed screwdriver into the slot on the adjustment dial

and rotate the dial anticlockwise to decrease or clockwise to increase the

delivered water temperature.

Each number represents a temperature difference of approximately 5°C.

5. Open the cold water isolation valve at the inlet to the water heater.

6. Open a hot water tap and let the water flow for two (2) to three (3) minutes.

7. Using a thermometer, measure the water temperature at the opened tap.

If the measured water temperature is as desired, the water mixing valve is

correctly set.

If the measured water temperature is not as expected, repeat steps 1 to 7

until the desired water temperature is obtained.

adjustment

dial

ABOUT YOUR WATER HEATER

Notes

If the adjustable water mixing valve is set on the lowest setting (position „1‟)

and the delivered water temperature is still too hot, then reduce the

thermostat setting on the gas control and wait twenty four (24) hours before

repeating the procedure above. Refer to “Gas Control Temperature Dial” on

page 7 for information on adjusting the thermostat setting.

The delivered water temperature should be checked periodically at a hot

water tap. The incoming cold water temperature can vary from summer to

winter. This change in cold water temperature will affect the delivered mixed

water temperature. The water mixing valve may require adjustment between

summer and winter or other seasons of the year.

Warning: Small changes to the adjustable water mixing valve setting can

lead to significant water temperature changes. Changing the valve‟s setting or

the water heater‟s thermostat setting will cause the water delivery temperature

to be altered. If either of these settings is altered, the water mixing valve

adjustment procedure must be repeated to ensure the delivered hot water

temperature is satisfactory.

PIEZO IGNITION

The “Piezo” push button igniter makes lighting

the pilot flame of your water heater very easy.

Simply follow the instructions on the label

attached to the back of the access door.

There is no need for matches to light the

water heater.

PILOT IGNITER

A permanent pilot flame burns to ignite the

main burner automatically. Heat from the pilot

is absorbed by the water.

GOING ON HOLIDAYS

If you plan to be away from home for one or two nights, we suggest you leave

the water heater turned on. However, if you plan to stay away more than a few

nights, the gas knob can be set to the red star “ ” (pilot) position (facing the

front) to conserve energy (refer to steps 1, 2 and 4 of “Close Down Procedure”

on page 43).

If it is necessary to turn off the water heater, refer to “To Turn Off The Water

Heater” on page 10.

Note: When turned back on from the red star “ ” (pilot) position or white dot

“” (off) position, the water heater may take up to an hour to reheat if the water

has lost temperature.

ABOUT YOUR WATER HEATER

TO TURN OFF THE WATER HEATER

If it is necessary to turn off the water heater:

Shut down the gas control (refer to “Close Down Procedure” on page 43).

Close the gas isolation valve at the inlet to the gas control.

Close the cold water isolation valve at the inlet to the water heater.

TO TURN ON THE WATER HEATER

Open the cold water isolation valve fully at the inlet to the water heater.

Open the gas isolation valve fully at the inlet to the gas control.

Light the water heater (refer to “Lighting the Water Heater” on page 40).

HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY?

Installation requirements are shown on pages 23 to 30. The water heater must

be installed:

by a qualified person, and

in accordance with the installation instructions, and

in compliance with Standards AS/NZS 3500.4, AS 5601 or AS/NZS 5601.1,

as applicable under local regulations, and all local codes and regulatory

authority requirements.

VICTORIAN CUSTOMERS

Notice to Victorian Customers from the Victorian Plumbing Industry

Commission. This water heater must be installed by a licensed person as

required by the Victorian Building Act 1993.

Only a licensed person will give you a Compliance Certificate, showing that the

work complies with all the relevant Standards. Only a licensed person will have

insurance protecting their workmanship for six (6) years. Make sure you use a

licensed person to install this water heater and ask for your Compliance

Certificate.

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