Rheem 27 874 Series, 874 Series Owner's Manual And Installation Instructions

PATENTS

This water heater may be protected by one or more patents or registered designs in the name of

Rheem Australia Pty Ltd or Paloma Industries Ltd.

Rheem New Zealand Pty Ltd is the supplier of the Rheem range of electronic continuous flow gas water heaters,

manufactured by Paloma Industries Ltd, a world leader in water heater technology and manufacture.

TRADEMARKS

® Registered trademark of Rheem New Zealand Pty Ltd.

™ Trademark of Rheem New Zealand Pty Ltd.

Note: Every care has been taken to ensure 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 a 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.

3

CONTENTS

HOUSEHOLDER - We recommend you read pages 4 to 73.

The other pages are intended for the installer but may be of interest.

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



Temperature Control ................................................................................................................... 9

Temperature Control – Standard ............................................................................................. 10

Temperature Control – Deluxe ................................................................................................. 20

Save A Service Call ................................................................................................................... 39

Installation – Water Heater ....................................................................................................... 42

Connections – Plumbing .......................................................................................................... 55

Connections – Electrical ........................................................................................................... 57

Installation – Controllers .......................................................................................................... 58

Commissioning.......................................................................................................................... 65

Draining The Water Heater ....................................................................................................... 72

Water Supplies........................................................................................................................... 72

Warranty ..................................................................................................................................... 73

4

ABOUT YOUR WATER HEATER

MODEL TYPE

The Rheem® electronic continuous flow gas water heater model you have chosen is for outdoor installation
only. This model has an extended warranty (refer to “Warranty” on page 73).

The water heater has a preset outlet temperature setting of:

• 874 series 55°C

Notes:

.

• The 874 series water heater may be installed as an in-series gas booster water heater to a solar preheat

water heater. For information relating to the function and operation of the solar water heater, refer to the
Owner’s Guide and Installation Instructions supplied with the solar water heater.

• When installed as a gas booster to a solar preheater, the 874 series water heater:

 Can deliver water at temperatures up to 75°C for a Premier Loline and Loline pumped system and a

Hiline thermosiphon system and possibly higher temperatures from a Premier Hiline thermosiphon
system.

 During periods of low solar energy gain, will boost the water temperature automatically to a minimum

75°C when required.

WATER HEATER OPERATION

The water heater operates automatically, heating water as it passes
through the water heater. When a hot tap is opened, the gas burners
ignite to provide immediate heating of the water. The heat produced by
the burner is transferred to the water through the heat exchanger. The
water is heated to a constant temperature by the automatic adjustment
of the gas supply to the burner to suit the water flow rate (refer to

“Temperature Control” on pages 9 to 38). The gas burners extinguish

when the hot tap is closed.

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

GAS BOOSTING FOR A SOLAR WATER HEATER

Water stored in the solar storage tank passes through the gas booster
water heater when a hot tap is opened. The gas booster water heater
is for heating water at times of low solar energy gain, such as during
cloudy or rainy weather, or during winter months.

Solar heated water can reach temperatures up to 75°C for a Premier Loline and Loline pumped system and
a Hiline thermosiphon system and possibly higher for a Premier Hiline thermosiphon system. The gas
booster water heater operates automatically. When the solar heated water temperature is 58°C or higher, the
flow passes through the gas booster water heater without boosting. When the solar heated water
temperature is below 58°C, the gas booster water heater operates, and heats the water to a minimum
temperature of 75°C.

ABOUT YOUR WATER HEATER

5

MAINS PRESSURE

The water heater is designed for direct connection to the mains water supply. If the mains supply pressure in
your area exceeds that shown on page 44, a pressure limiting valve must be fitted. The supply pressure
should be greater than 140 kPa for the rated flow and performance to be achieved.

HOW HOT SHOULD THE WATER BE?

The water heater may be installed with one or more user
adjustable temperature controllers, which allow you to choose
the most suitable temperature for your hot water needs (refer
to “Temperature Control” on page 9).

If a controller is not installed, the water heater heats the water
to the factory preset outlet temperature setting.
The preset outlet temperature setting is:

• 874 series 55°C

Note: The preset outlet temperature setting of this water

heater cannot be adjusted by the householder. The setting
can only be adjusted by the installer, or an Accredited Rheem
Service Centre.

If this water heater is installed as part of a solar water heater
system, the installer should check, and if required, adjust the
preset outlet temperature setting of an 874 series water

heater to 75°C. A tempering valve must be installed as per

AS/NZS3500.4 requires you to do so.

Warning: Temperature controllers must not be fitted to this water heater (874 series) as part of a solar

water heater system. This is because the water can be supplied at a temperature much higher than the
controller temperature setting. If a solar preheater has been installed to an existing water heater installation,

then all controllers must be disconnected and removed.

If this water heater is installed as part of a solar water heater system, the system can deliver water at
temperatures from 58°C up to 75°C and possibly higher depending upon the model of solar water heater
installed.

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.

It may be required by local regulations that supplying hot water to an early childhood centre, school, nursing
home or a facility for young, aged, sick or disabled people.
An approved temperature limiting device supplying a fixed temperature of 45°C or less, to be fitted into the
hot water piping to the bathroom and ensuite when an 874 series water heater is installed to reduce risk of
scald injury.
If no controllers are installed, and the 874 series preset outlet temperature setting has not been adjusted
below 55°C, or if a Kitchen controller is installed, and there is no temperature limiting device, the 874 series
supply temperature can still potentially cause a scald.

The factory preset temperature setting of an 874 series water heater will not deliver temperatures exceeding
55°C. There is no requirement in AS/NZS 3500.4 to fit a temperature limiting device unless the water heater
is supplying hot water to an early childhood centre, school, nursing home or a facility for young, aged, sick or
disabled people.

maximum Kitchen controller

temperature setting 874 series

maximum recommended supply

temperature to bathrooms and

ensuites.
maximum Bathroom controller
temperature setting 874 series

Minimum Kitchen and Bathroom

controller temperature setting

ABOUT YOUR WATER HEATER

6

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.

The water heater uses 240 Volt AC electrical power for operation of the control systems and the combustion
fan. The removal of the front panel will expose 240 V wiring. It must only be removed by an authorised or
qualified person.

The power lead from the water heater must be plugged into a weatherproof electrical outlet. Take care not to
touch the power plug with wet hands.

SAFETY

This water heater is supplied with temperature sensors, a FlameSafe® protection system and a 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.

If the power supply cord or plug is damaged, it must be replaced by an authorised person in order to avoid a
hazard. The power supply cord and plug must be replaced with a genuine replacement part available from
Rheem. Phone your nearest Rheem Service Department or Accredited Service Centre to arrange for an
inspection.

The warranty can become void and serious hazards may result

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.

• Do not use Propane / Butane gas mixtures in a Propane model. A Propane model is designed to operate

on Propane only. The use of Propane / Butane mixture, such as automotive LPG fuel, in a Propane
model is unsafe and can cause damage to the water heater.

GOING ON HOLIDAYS

If you are going on holidays, it is not necessary to turn the water heater off. If it is necessary to turn off the
water heater, refer to “To Turn off the Water Heater” on page 7.

ABOUT YOUR WATER HEATER

7

TO TURN OFF THE WATER HEATER

If it is necessary to turn off the water heater:

• Turn off the controllers(s) (if fitted) by pressing the on / off button.

The light in the on / off button will go out and the priority light (standard controller) or the ACTIVE light
(Deluxe controller), if it is on, will go out.

• Switch off the electrical supply at the power outlet to the water heater if there is no risk of freezing

conditions occurring (refer to note below).

• Close the gas isolation valve at the inlet to the water heater.

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

Note: If there is a risk of freezing conditions, the electrical supply to the water heater should not be switched

off unless the water heater is drained, otherwise damage could result (refer to “Frost Protection” on page 8
and “Draining the Water Heater” on page 8).

TO TURN ON THE WATER HEATER

• Screw in the drain plugs at the cold water inlet and hot water outlet of the water heater if the water

heater has been drained.

• Open all of the hot taps in the house (don’t forget the shower).

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

Air will be forced out of the taps.

• Close each tap as water flows freely from it.

• Open the gas isolation valve fully at the inlet to the water heater.

• Plug in the power supply cord at the power outlet.

• Switch on the electrical supply at the power outlet to the water heater.

• Turn on a controller, if one is fitted, by pressing the on / off button.

The light in the on / off button and the priority light (standard controller) or ACTIVE light (Deluxe
controller) will both glow.

The water heater will operate automatically when you open a hot tap.

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

Installation requirements are shown on page 52. The water heater must be installed by an authorised
person. In New Zealand the installation must comply with Standards AS/NZS 3500.4 and NZS 5261 and all
local codes and regulatory authority requirements.

Warning: Temperature controllers must not be fitted to this water heater (874 series) as part of a solar

water heater system because water at a temperature much higher than the controller setting can be
delivered. If a solar preheater heater has been installed to an existing water heater installation, then all

controllers must be disconnected and removed.

The pipe work between the solar storage tank (if one is installed) and the gas booster water heater has a

minimum recommended pipe size of DN20, MUST BE

of copper and be fully insulated in accordance with
the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The
insulation must be fitted up to the connections on both the solar storage tank and the gas booster water
heater.

DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER?

The water heater is suitable for most public water supplies; however some water chemistries may have

detrimental effects on the heat exchanger and fittings. If you are in a known harsh water area you must

read page 72

. If you are not sure, have your water chemistry checked against the conditions described on

page 72.

ABOUT YOUR WATER HEATER

8

HOW LONG WILL THE WATER HEATER LAST?

There are a number of factors that will affect the length of service the water heater will provide. These
include the water chemistry, the water pressure, temperature (inlet and outlet) and the water usage pattern.
However, your water heater is supported by a comprehensive warranty (refer to page 73).

GENERAL MAINTENANCE

The jacket of the water heater can be cleaned with a soft cloth and warm mild soapy water. Under no
circumstances should abrasive materials or powders be used.

SERVICING

For safe and efficient operation, the water heater should be serviced annually by your nearest Rheem
Accredited Service Centre. Only genuine replacement parts should be used on this water heater.

Warning: Servicing of a gas water heater should only be carried out by authorised personnel.

FROST PROTECTION

The water heater has a frost protection system. The frost protection system will protect the water heater from
damage, by preventing ice forming in the waterways of the water heater, in the event of freezing conditions
occurring.

Notes:

• The frost protection system will be rendered inoperable if electrical power is not available at the water

heater. Damage caused by freezing due to the unavailability of power at the water heater is not covered
by warranty (refer to “Warranty Exclusions” on page 74).

• If it is necessary to switch the power off to the water heater and there is a risk of freezing, then it is

necessary to drain the water heater (to “Draining the Water Heater” on page 72).

• Pipe work to and from the water heater must be adequately insulated to prevent freezing.

• The water heater is not suitable for installation in areas where the ambient temperature falls below -20ºC

(including wind chill factor).

• Refer to “Warranty Exclusions” on page 74.

DRAINING THE WATER HEATER

• Turn off the water heater (refer to “Turn Off The Water Heater” on page 71).

• Open a hot tap (preferably the shower outlet).

• Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of

the water heater.

Water will drain from the water heater.

• When water stops flowing from the water heater, close the hot tap.

Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.

9

TEMPERATURE CONTROL

CONTROLLERS

The Rheem 874 series can be installed with Rheem controllers to enable the user to control the temperature
of the delivered water from the outlet of the water heater. There are two families of Rheem controllers
suitable for installation with this water heater. These are the standard controllers and the Deluxe controllers.

Standard Controllers

There are three types of standard controller. They are the Kitchen controller (Rheem PN 299853),
Bathroom1 controller (Rheem PN 299854) and the Bathroom2 controller (Rheem PN 299855). The standard
controllers are suitable for use on all 874 and 876 series models.

The standard controllers are identified by a ‘K’ (Kitchen controller), ‘B1’ (Bathroom1 controller) or ‘B2’
(Bathroom2 controller) located on the front bottom left hand corner of the standard controller.

Deluxe Controllers

There are three types of Deluxe controller. They are the Kitchen Deluxe controller (Rheem PN 299861),
Bathroom1 Deluxe controller (Rheem PN 299862) and the Bathroom2 Deluxe controller (Rheem
PN 299863).

The Deluxe controllers are identified by a ‘K’ (Kitchen Deluxe controller), ‘B1’ (Bathroom1 Deluxe controller)
or ‘B2’ (Bathroom2 Deluxe controller), located under the front panel, to the bottom left hand corner adjacent
to the BATH FILL VOLUME label.

The Deluxe controllers offer additional functions to the standard controllers. These are:

• An assistance call function, which provides a voice prompt when pressed and will sound on all

controllers. This is useful should a family member require assistance when in the bathroom.

• A Bath Fill mode, which is designed to allow the water heater to deliver a selected volume of water at a

selected temperature. Bath filling takes place when the hot tap is opened. When the set volume has
been delivered, the water flow from the water heater ceases. Refer to “Bath Fill Mode” on page 30.

Note: The bath level should be monitored periodically while this function is in use to avoid the possibility

of the bath overflowing. The Bath Fill mode should also be used with caution until you are familiar with
its operation.

Warning: Baths should not be left unattended whenever young children are present.

Warning: Temperature controllers must not be fitted to this water heater (874 series) as part of a solar

water heater system. This is because the water can be supplied at a temperature much higher than the
controller temperature setting. If a solar preheater has been installed to an existing water heater installation,

then all controllers must be disconnected and removed.

Notes:

• Where more than one controller is installed, the second or third controller must be of the same family.

• A standard controller can only be installed with another standard controller(s) and a Deluxe controller

can only be installed with another Deluxe controller(s). A standard controller(s) and a Deluxe
controller(s) cannot be connected to the same water heater.

• One, two or three controllers can be installed. Only one of each type of controller can be connected to

the water heater. Therefore, a maximum of three controllers only can be connected to each water
heater.

• A Bathroom2 controller can only be installed if a Bathroom1 controller is installed and a Bathroom2

Deluxe controller can only be installed if a Bathroom1 Deluxe controller is installed.

• Other manufacturers’ controllers are not suitable to and cannot be installed with this water heater.

10

TEMPERATURE CONTROL – STANDARD

STANDARD CONTROLLER FUNCTIONS

If one or more controllers are installed, at least one must be on for the water heater to operate. If all
controllers are off, the water heater will only deliver cold water.

on / off button – This button must be pressed once to turn on the controller.

A controller cannot be turned on if water is flowing from a hot tap.

To turn off a controller, press the on / off button once. The light will go out.

A controller can be turned off whilst water is flowing.

on / off operating light – The light in the on / off button will glow when the controller is turned on.

The light will go out when the controller is turned off.

priority light – This light will glow on a controller when that controller has priority.

The Bathroom controller(s), if they are turned on, have priority over the Kitchen
controller.

Priority means that controller has control of the water heater temperature setting.

The water temperature setting can only be adjusted by the controller that has priority.

in use light – This light will glow on all controllers, whether they are on or off, when hot water is

flowing, regardless of which controller has priority.

display panel – The current temperature setting is displayed on all controllers (whether hot water is

flowing or not), when any controller is on.

If all controllers are off, then the display remains blank.

The water volume can also be displayed on the Kitchen controller. The x10l symbol
glows when the water volume is displayed.

i (up button) – The up button increases the temperature setting (refer to “Temperature Adjustment –

Standard Controller” on page 13).

j (down button) – The down button decreases the temperature setting (refer to “Temperature

Adjustment – Standard Controller” on page 13).

water volume button (Kitchen controller only) – This feature enables an alarm to sound when a set volume

of water has flowed through the water heater (refer to “Water Volume Function –

Standard Controller” on page 18).

water volume operating light – The light in the water volume button will glow when the water volume button

is pressed and the water volume mode is turned on.

The light will go out when the water volume button is pressed and the water volume
mode is turned off.

water volume symbol – The x10l symbol below the display panel glows when the water volume mode is

turned on and the water volume is displayed.

TEMPERATURE CONTROL – STANDARD

11

STANDARD CONTROLLER

int e g rit y

Note: water volume button, water volume operating light and water volume symbol are on the Kitchen

controller only.

SILENCING A CONTROLLER – STANDARD

The controller emits a sound whenever a button is pressed. This sound can be turned off to provide silent
operation.

To turn off the sound:

• Press the on / off button, to deactivate the controller (on / off light is off).

• Press and hold the up (i) button.

• Press the on / off button, whilst the up (i) button is pressed.

The sound for the controller is deactivated. Repeat this procedure on the other controllers if you wish to
deactivate their sound. To restore the sound, repeat this procedure.

i up

button

j down

button

on / off

button

on / off

operating light

controller type

K = Kitchen
B1 = Bathroom1
B2 = Bathroom2

water volume

operating light

display panel

water volume

button

water volume

symbol

in use light

priority light

TEMPERATURE CONTROL – STANDARD

12

TEMPERATURE SETTINGS – STANDARD CONTROLLER

The temperature settings of each type of controller are:

• Bathroom1 & 2 37°C to 48°C (in 1°C increments), 50°C

• Kitchen 37°C to 48°C (in 1°C increments), 50°C*, 55°C

Temperature settings

37 38 39 40 41 42 43 44 45 46 47 48 50 55

warm average hot shower hot very hot

The installation of a Bathroom controller(s) only (i.e. no Kitchen controller) limits the temperature setting of
the water heater to a maximum of:

• 874 series 50ºC

Regardless of the preset outlet temperature setting of the water heater.

The installation of a Kitchen controller will allow a maximum temperature setting of:

• 874 series 55ºC

Regardless of the preset outlet temperature setting of the water heater.

If controllers are not installed, the water heater defaults to the preset outlet temperature setting. This may be
up to:

• 874 series 55°C

Refer to “How Hot Should The Water Be?” on page 5.

If a building is fitted with a temperature limiting device to ablution areas, and an 874 series water heater is
installed with a separate untempered hot water line to the kitchen, laundry or other non-ablution areas, the
kitchen controller will be able to display temperatures up to 55°C, however the tempered water at ablution
areas may be lower.
However, the maximum water temperature which can be delivered to the hot water outlets in these locations
is determined by the preset temperature setting of the temperature limiting device. If fitted, this is usually
55°C; however the temperature setting of the temperature limiting device will determine the outlet
temperature.

To enable the delivery of water temperatures above 55°C (e.g. when used as a Solar Booster), the water
heater preset temperature will need increased. To supply water above 55°C to the kitchen, laundry or other
non-ablution area, a separate untempered supply must be installed from the water heater to the hot water
outlets in these locations.

TEMPERATURE CONTROL – STANDARD

13

TEMPERATURE ADJUSTMENT – STANDARD CONTROLLER

• A controller must be on and have priority to be able to adjust the temperature setting.

• The temperature adjustment is made by pressing the up (i) button or down (j) button.

• The maximum temperature setting for the controllers are:

Kitchen Bathroom

874 series 55°C 50°C

• Each press of the up (i) button will increase the temperature setting by one increment.

• Pressing and holding the up (i) button will scroll the temperature setting up to a maximum 43°C if there

is hot water flowing or 45°C if there is no hot water flowing.

• From the 45°C setting, the up (i) button must be pressed once for each increase in temperature

increment.

• The temperature setting cannot be increased above 43°C whilst hot water is flowing.

• The minimum temperature setting for each type of controller is 37°C.

• Each press of the down (j) button will decrease the temperature setting by one temperature increment.

• Pressing and holding the down (j) button will scroll down the temperature setting.

• The temperature setting can be decreased from any temperature setting whether the hot water is flowing

or not.

TEMPERATURE CONTROL – STANDARD

14

KITCHEN CONTROLLER – STANDARD

The Kitchen controller allows the user to select the temperature setting for the hot water to be used in the
kitchen and laundry. It has a minimum temperature setting of 37°C and a maximum temperature setting of:

• 874 series 55ºC

The Kitchen controller does not have priority if a Bathroom controller is on.

Notes on the Kitchen controller:

• The controller cannot be turned on whilst a hot tap is open.

• The Kitchen controller must be on and have priority in order to adjust the temperature setting on the

Kitchen controller.

• The Bathroom controller(s) can be turned off from the Kitchen controller.

 Press and hold the on / off button on the Kitchen controller for three seconds.

This turns off all the controllers and the displays go blank.

If hot water is flowing from a hot tap, it will go cold.

inte grity

Kitchen Controller

TEMPERATURE CONTROL – STANDARD

15

To operate the Kitchen controller:

1. Turn off the Bathroom controller(s)

 If a temperature setting is displayed and the priority light is not glowing, it is necessary to turn off the

Bathroom controller(s) to gain priority.

 Refer to the notes on the Kitchen controller on page 14.

2. Turn on the Kitchen controller

 Press the on / off button.

The on / off operating light and the priority light will both
glow.

The Kitchen controller temperature setting will be
displayed. This is the lower of the previous setting and:

 874 series 50ºC

3. Select the temperature setting

 Press the up (i) button or down (j) button.

 Refer to “Temperature Adjustment – Standard

Controller” on page 13.

The selected temperature setting will be displayed on
all controllers.

4. Open the hot tap.

The in use light will glow on all controllers.

5. Close the hot tap.

The in use light will go out on all controllers, if no other
hot tap is open.

6. Turn off the Kitchen controller

 Press the on / off button.

The priority light and on / off operating light will go out
and the temperature display will go blank.

Important: Turn off the Kitchen controller after hot water usage
is finished in the kitchen and / or laundry. Refer to Important

note for Bathroom controllers on page 16.

water

volume

on
off

check

hot water

temperature

before use

50

°C

priority

in use

x10l

5

5

°C

priority

in use

x10l

5

5

°C

priority

in use

x10l

5

5

°C

priority

in use

x10l

water

volume

on
off

check

hot water

temperature

before use

°C

priority

in use

x10l

TEMPERATURE CONTROL – STANDARD

16

BATHROOM CONTROLLERS – STANDARD

The Bathroom controller(s) allows the user to select the temperature setting for the hot water to be used in
the bathroom. They have a minimum temperature setting of 37°C and a maximum temperature setting of:

• 874 series 50ºC

The Bathroom controllers operate in tandem. Whenever an operation is selected on one Bathroom controller,
it is also set on the other Bathroom controller. The Bathroom controllers automatically have priority if they are
on.

Important: It is important to turn on the Bathroom controller before opening a hot tap in the bathroom

(priority is automatically gained). If the Bathroom controller is not on and the Kitchen controller is on (has
priority), then it is possible to receive water at a temperature higher than expected from a hot tap in the
bathroom. This temperature could be up to:

• 874 series 55ºC if a temperature limiting device is installed in the hot pipe to the

bathroom, or up to 55°C if a temperature limiting device is not installed.

Notes on the Bathroom controllers:

• The controller cannot be turned on whilst a hot tap is open.

• When a Bathroom controller is turned on, it gains priority from the Kitchen controller.

• The Bathroom controller must be on in order to adjust the temperature setting on the Bathroom

controller.

• The Kitchen controller can be turned off from a Bathroom controller.

 Press and hold the on / off button on a Bathroom controller for three seconds.

This turns off all the controllers and the displays go blank.

If hot water is flowing from a hot tap, it will go cold.

• Warning: It is advised to leave the Bathroom controller on after hot water usage is finished in the

bathroom. Turning off a controller in one bathroom will also turn off the controller in the other
bathroom. The Kitchen controller will gain priority if it is on and the temperature setting can be up to:

 874 series 55°C

If a hot tap is open in another bathroom, the water will be delivered at this temperature.

int e grit y

Bathroom Controller

TEMPERATURE CONTROL – STANDARD

17

check

hot water

temperature

before use

on
off

40

°C

priority

in use

42

°C

priority

in use

42

°C

priority

in use

42

°C

p

riority

in use

To operate a Bathroom controller:

1. Turn off the Kitchen controller

 If a temperature setting is displayed and the priority light is not glowing, it is advised to turn off the

Kitchen controller.

Refer to the notes on the Bathroom controllers on page 16.

2. Turn on the Bathroom controller

 Press the on / off button.

The on / off operating light and the priority light will both
glow.

The temperature setting of 40°C will be displayed.

3. Select the temperature setting

 Press the up (i) button or down (j) button.

 Refer to “Temperature Adjustment – Standard Controller”

on page 13.

The selected temperature setting will be displayed on all
controllers.

4. Open the hot tap

The in use light will glow on all controllers.

5. Close the hot tap

The in use light will go out on all controllers, if no other
hot tap is open.

It is advised not to turn off the Bathroom controller(s).

 Refer to the warning in the notes on page 16.

TEMPERATURE CONTROL – STANDARD

18

WATER VOLUME FUNCTION – STANDARD CONTROLLER

The water volume function is designed to warn, by a beeping sound, that a certain volume of water has been

delivered from the water heater. It does not stop either the flow of or the heating of water. This function

is particularly useful if a bath is being filled, or measuring the water consumed by the use of a shower.

The water volume function can only be set by the Kitchen controller. Refer to the notes on the water volume

function on page 19.

To operate the water volume alarm:

1. Turn on the water volume alarm

 Press the water volume button.

The water volume operating light will glow.

The current set water volume (in litres divided by 10) will
be displayed and the x10l indicator will also glow.

Eg. The factory preset water volume of 180 litres is
shown as 18 x10l.

2. Adjust the water volume setting (if necessary)

 To adjust the water volume setting, press the

up (i) button to increase the water volume or the
down (j) button to decrease the water volume.

Each press of the up (i) button or down (j) button will
change the water volume setting by 10 litres.

Pressing the up (i) button or down (j) button
continuously will scroll the water volume setting.

Fifteen seconds after the water volume has been
selected, the water volume operating light will start to
flash and the selected water volume is set.

The water volume operating light will continue to flash
until the alarm sounds.

A maximum of 500 litres (50 and x10l displayed) and a
minimum of 10 litres (1 and x10l displayed) can be set

with the water volume alarm.

3. Set the water temperature

 Turn on the controller for the room where the hot water is

to be used.

 Gain priority (if using the Kitchen controller).

 Select the temperature setting.

4. Open the hot tap

The in use light will glow on all controllers.

Measurement of the water flow at the water heater will
commence when a hot tap is open and the water volume
operating light is flashing.

The alarm will sound when the set volume of water has
passed through the water heater.

water

volume

on

off

check

hot water

temperature

before use

18

°C

priority

in use

x10l

water

volume

on

off

check

hot water

temperature

before use

15

°C

priority

in use

x10l

on

off

check

hot water

temperature

before use

42

°C

priority

in use

42

°C

priority

in use

water

volume

TEMPERATURE CONTROL – STANDARD

19

5. Turn off the alarm

 Press the water volume button to turn off the alarm.

The water volume operating light goes out and 0 x10l is
displayed momentarily on the controller.

The temperature setting of the controller with priority is
then displayed.

6. Close the hot tap

If it is a Bathroom controller which is in use and has priority,
then it is advised to leave the controller on.

 Refer to the warning in the notes on page 16.

If it is the Kitchen controller which is in use and has priority,
then it is advised to turn the controller off.

 Refer to Important note for Bathroom controllers on

page 16.

Notes on the water volume function:

• The water volume can only be set by the Kitchen controller.

• The Kitchen controller does not require priority nor to be on in order to set the water volume function.

• The water volume function can be set whilst a hot tap is open.

• The water volume alarm will only sound from the Kitchen controller.

• The water volume alarm will still sound if the Kitchen controller has been silenced (refer to “Silencing A

Controller” on page 11).

• The factory preset water volume is 180 litres.

• If a hot tap is not opened for one hour after the new water volume has been set, then the setting will be

automatically cancelled. The water volume resets to the previously set water volume (or the factory
preset water volume if no water volume has previously been set).

• To display the remaining water volume while water is being drawn, press the water volume button. After

a few seconds, the display returns to the temperature setting.

• To turn off the water volume function before the alarm sounds, press the water volume button twice.

• The water volume is measured as the water flows through the water heater. Therefore if more than one

hot tap is open, the alarm will respond to the total water volume drawn from all taps and the expected
water volume from the first tap will be decreased.

• If the hot tap is closed before the set water volume flows through the water heater and the water volume

button is left on, then the alarm will sound when the remaining water volume is consumed during a later
operation. To prevent the alarm from sounding, press the water volume button twice to turn it off.

water

volume

42

°C

on

off

check

hot water

temperature

before use

priority

in use

x10l

42

°C

priority

in use

20

TEMPERATURE CONTROL – DELUXE

DELUXE CONTROLLER FUNCTIONS

If one or more Deluxe controllers are installed, at least one must be on or the bath fill function activated for
the water heater to operate. If all Deluxe controllers and the bath fill function are off, the water heater will only
deliver cold water.

ON / OFF button – The ON / OFF button must be pressed once to turn on the Deluxe controller. A Deluxe

controller cannot be turned on if water is flowing from a hot tap.

To turn off a Deluxe controller, press the ON / OFF button once. A Deluxe controller
can be turned off whilst water is flowing.

ON / OFF operating light – The light in the ON / OFF button will glow when the Deluxe controller is turned on.

The light will go out when the Deluxe controller is turned off.

ACTIVE light – The ACTIVE light will glow on a Deluxe controller when the controller is ‘active’, i.e. it

has priority. The Bathroom Deluxe controller(s), if they are turned on, are ‘active’ and
have priority over the Kitchen Deluxe controller.

ACTIVE or priority means that Deluxe controller has control of the water heater
temperature setting. The water temperature setting can only be adjusted by a Deluxe
controller that has priority and is displaying the ACTIVE light.

operating light – The operating light will glow on all Deluxe controllers, whether they are on or off, when

hot water is flowing, regardless of which Deluxe controller has priority.

temperature display panel – The current temperature setting is displayed in °C on all Deluxe controllers

(whether hot water is flowing or not), when any Deluxe controller is on. If all Deluxe
controllers are off, the display remains blank.

i (up button) – The up button increases the water temperature setting (refer to “Temperature

Adjustment – Deluxe Controllers” on page 25).

j (down button) – The down button decreases the water temperature setting (refer to “Temperature

Adjustment – Deluxe Controllers” on page 25).

assistance call button – Pressing this button sounds an alert message on all Deluxe controllers, indicating

that assistance is required in the room from which the assistance call button was
activated.

speaker – The audio of the voice prompts and chimes is emitted from the speaker.
BATH FILL button – The BATH FILL button must be pressed once to turn on the Bath Fill mode.

When the Bath Fill mode is turned on, the last selected bath fill water volume in litres
will be displayed in the bath fill water volume display panel and the last selected
bath fill temperature in °C will be displayed in the ‘temperature’ display panel.

The bath fill water volume and temperature can be adjusted by using the BATH FILL
VOLUME and BATH FILL TEMPERATURE buttons located behind the hinged panel
on the lower half of the Deluxe controller (refer to “Bath-Fill Mode” on page 30).

To turn off the Bath Fill mode, press the BATH FILL button.

BATH FILL operating light – The light in the BATH FILL button will glow when the BATH FILL button is

pressed and the Bath Fill mode is turned on.

The light in the button will flash when the selected bath fill function is complete but
before the Bath Fill mode has been turned off.

The light will go out when the BATH FILL button is pressed and the Bath Fill mode is
turned off.

TEMPERATURE CONTROL – DELUXE

21

bath fill water volume display panel – The selected bath fill water volume is displayed in litres on all Deluxe

controllers.

The selected bath fill water volume is displayed whenever the Bath Fill mode is on
(refer to “Bath Fill Mode” on page 30) or when the bath fill water volume is being
adjusted and the Bath Fill mode is off.

If the bath fill water volume is being adjusted and the Bath Fill mode is off, then the
bath fill water volume display panel goes blank three (3) seconds after a BATH FILL
VOLUME button is last pressed.

At other times, if the Bath Fill mode is off, the bath fill water volume display panel
remains blank.

bath fill indicator light – this light in the display panel will glow when the bath fill water volume is displayed.
BATH FILL TEMPERATURE i  (up button) – The up button increases the bath fill water temperature

setting (refer to “Temperature Adjustment – Deluxe Controllers” on page 25 and to

“Bath Fill Mode” on page 25).

BATH FILL TEMPERATURE j (down button) – The down button decreases the bath fill water temperature

setting (refer to “Temperature Adjustment – Deluxe Controllers” on page 25 and to

“Bath Fill Mode” on page 25).

BATH FILL VOLUME i (up button)– The up button increases the bath fill water volume setting in

increments of 10 litres up to 500 litres. A further setting of 990 litres can be selected.

BATH FILL VOLUME j (down button) – The down button decreases the bath fill water volume setting from

990 litres to 500 litres and in increments of 10 litres from 500 litres down to 10 litres.

DELUXE CONTROLLER

Rheem

BATH (l)

42

°C

230

A

CTIVE

BATH FILL ON/OFF

K

BATH FILL

VOLUME

BATH FILL

TEMPERATURE

ACTIVE
Light on

2.

Adjust

Temperature

3.

Open hot

tap

4.Hot Water

Press

1.

ON/OFF

Bath Fill
completed
(automatic)

Bath Fill Button

(Red light flashes)

6. Close hot tap

5.

Press Bath
Fill Button

(Red light on)

3.

4. Open hot tap

BATH FILL

Press Bath
Fill Button

(red light off)

7.

BATH FILL

Bath Fill

Bath

Water

Volume

Bath
Fill
Temp

Set Bath Fill Water Volume

and Temperature

1. 2.

BATH FILL

VOLUME

j down button

BATH FILL

VOLUME

i up button

BATH FILL

button

assistance call

button

BATH FILL

operating light

Deluxe controller type

K = Kitchen
B1 = Bathroom1
B2 = Bathroom2

brief Deluxe controller
operating instructions

bath-fill mode and

hot water mode

BATH FILL

TEMPERATURE

j down button

BATH FILL

TEMPERATURE

i up button

ON / OFF

button

ON / OFF

operating light

i up

button

j down

button

operating

light

ACTIVE

light

BATH FILL

indicator light

temperature
display panel

speaker

bath fill water volume

display panel

TEMPERATURE CONTROL – DELUXE

22

VOICE PROMPT AND OPERATING TONE

The Deluxe controllers have a series of voice prompts and operating tones which sound during certain
operations.

The voice prompts and operating tones sound from all Deluxe controllers, regardless of which Deluxe
controller is being operated at the time.

Voice Prompt

The voice prompts are:

• When either the up (i) button or BATH FILL TEMPERATURE i (up button) is pressed

“hot water temperature has been increased”

• When either the down (j) button or BATH FILL TEMPERATURE j (down button) is pressed

“hot water temperature has been decreased”

• When the BATH FILL VOLUME i (up button) is pressed

“Caution, bath fill water volume has been increased, bath may overflow”

• When the BATH FILL VOLUME j(down button) is pressed

“bath fill water volume has been decreased”

• When the BATH FILL button is pressed to turn on the bath Fill mode

“please set bath water volume and bath temperature, then open the hot water tap”

• When the set bath fill water volume has been delivered from the water heater during Bath Fill mode

“the bath is ready, please turn off the hot water tap and press the BATH FILL button to finish”

• When the BATH FILL button is pressed to halt the bath fill function before it is complete

“bath filling has been stopped, please turn off the hot water tap and press the BATH FILL button to
finish”

• When the BATH FILL button is pressed to turn the Bath Fill mode off and the hot tap has not been

turned off

“please ensure the bath hot water tap is turned off”

• When the Deluxe controllers have been turned off during the bath fill function

“bath filling has been stopped”

• When the assistance call button is pressed

“assistance required, assistance required”

Operating Tone

The operating chime will sound when the temperature adjustment up (i) button or down (j) button is
pressed and the voice prompt is not speaking.

The operating beep will sound for each change in temperature increment when a BATH FILL
TEMPERATURE adjustment button is pressed or scrolled, whether the voice prompt is speaking or not.

The operating beep will sound for each change in volume increment when a BATH FILL VOLUME
adjustment button is pressed or scrolled and the voice prompt is not speaking.

TEMPERATURE CONTROL – DELUXE

23

Adjusting the Volume of the Voice Prompt and Operating Tone

The volume of the voice prompt and the operating tone can be adjusted to a level comfortable for you. The
volume of the voice prompt and the operating tone can be adjusted independently of each other. The volume
levels on a Deluxe controller are adjusted independently of another Deluxe controller.

The voice prompt and / or operating tone can also be turned off on an individual or all Deluxe controllers so
they do not sound at all.

The factory default volume setting of both the voice prompt and operating tone is medium [med]. If there is
an interruption to the water heater power supply, the volume of both the voice prompt and operating tone
returns to the default setting.

When adjusting the volume levels, the operating tone volume level is indicated by a chime, followed by the
voice prompt volume level which is indicated by two beeps. If during the volume setting procedure only the
chime is audible, this indicates the voice prompt is off. If during the volume setting procedure only the two
beeps is audible, this indicates the operating tone is off.

To adjust or turn off the volume for the voice prompt and operating tone:

• Turn off all Deluxe controllers.

• Press and hold the up (i) button, then within four (4) seconds press the ON / OFF button.

Each press of the ON / OFF button will change the voice prompt and operating tone in the following
sequence:

 operating tone [MAX], voice prompt [OFF]

 operating tone [MIN], voice prompt [MIN]

 operating tone [MIN], voice prompt [OFF]

 operating tone [OFF], voice prompt [OFF]

 operating tone [MAX], voice prompt [MAX]

 operating tone [MED], voice prompt [OFF]

 operating tone [MED], voice prompt [MED]

This order then repeats.

Note: If the ON / OFF button is not pressed within four (4) seconds of the up (i) button being pressed,

“CL” will start flashing on the temperature display panel. If this occurs, release the up (i) button and
recommence the procedure.

ASSISTANCE CALL FUNCTION

A Deluxe controller has an assistance call button. Should assistance be required, such as when in the
bathroom, a voice prompt will sound on all Deluxe controllers to notify others that assistance is required.

The Deluxe controller does not have to be on for the assistance call function to be activated and the function
can be activated during any operation.

To Call for Assistance

To operate the assistance call function:

1. Press the green assistance call button.

The voice prompt will sound on all Deluxe controllers,

“assistance required, assistance required”

The red light in the assistance call button will glow on all
Deluxe controllers for the duration of the voice prompt.

“assistance required,

assistance required”

BATH (l)

88

°C

A

CTIVE

BATHFILL ON/OFF

BATH (l)

88

°C

A

CTIVE

BATHFILL ON/OFF

TEMPERATURE CONTROL – DELUXE

24

TEMPERATURE SETTINGS – DELUXE CONTROLLERS

The temperature settings of each type of Deluxe controller are:

• Bathroom1 & 2 Deluxe 37°C to 48°C* (in 1°C increments), 50°C

• Kitchen Deluxe 37°C to 48°C* (in 1°C increments), 50°C*, 55°C

(Limited to 48ºC when set in bathfill mode.)

.

Temperature settings

37 38 39 40 41 42 43 44 45 46 47 48 50 55

warm average hot shower hot very hot

The installation of a Bathroom Deluxe controller(s) only (i.e. no Kitchen Deluxe controller) limits the
temperature setting of the water heater to a maximum of:

• 874 series 50ºC

regardless of the preset outlet temperature setting of the water heater.

The installation of a Kitchen Deluxe controller will allow a maximum temperature setting of:

• 874 series 55ºC

regardless of the preset outlet temperature setting of the water heater.

If Deluxe or standard controllers are not installed, the water heater defaults to the preset outlet temperature
setting. This may be up to:

• 874 series 55ºC

Refer to “How Hot Should The Water Be?” on page 5.

On a building fitted with a temperature limiting device such as a tempering valve and where an 874 series
water heater is installed without a separate untempered hot water line to the kitchen, laundry or other non­ablution area, although the Kitchen Deluxe controller will be able to display temperatures above 55°C and
the water leaving the water heater will be at the set temperature, the maximum water temperature which can
be delivered to the hot water outlets in these locations is determined by the temperature setting of the
temperature limiting device. This is usually 55°C.

To enable the delivery of water temperatures above 55°C to the kitchen, laundry or other non-ablution area,
separate untempered pipe work must be installed from the water heater to the hot water outlets in these
locations and water heater temperature increased to 75ºC.

TEMPERATURE CONTROL – DELUXE

25

TEMPERATURE ADJUSTMENT – DELUXE CONTROLLERS

• A controller must be on with the ACTIVE indicator displayed to be able to adjust the temperature setting.

• The temperature adjustment is made by pressing the up (i) button or down (j) button.

• The minimum temperature setting for each type of controller is 37°C.

• The maximum temperature setting for the controllers are:

Kitchen Bathroom

874 series

55°C 50°C

• Each press of the up (i) button will increase the temperature setting by one increment.

• Pressing and holding the up (i) button will scroll the temperature setting up to a maximum 43°C if there

is hot water flowing or 45°C if there is no hot water flowing.

• From the 45°C setting, the up (i) button must be pressed once for each increase in temperature

increment.

• The temperature setting cannot be increased above 43°C whilst hot water is flowing.

• Each press of the down (j) button will decrease the temperature setting by one temperature increment.

• Pressing and holding the down (j) button will scroll down the temperature setting.

• The temperature setting can be decreased from any temperature setting whether the hot water is flowing

or not.

Note: A Deluxe controller sounds a double beep at the 42°C temperature setting, if the voice prompt is not

speaking, when either the up (i) button or down (j) button has been pressed. The double beep does not

sound at the 42°C temperature setting when the BATH FILL TEMPERATURE i (up button) or BATH FILL
TEMPERATURE j(down button) is pressed.

TEMPERATURE CONTROL – DELUXE

26

KITCHEN CONTROLLER – DELUXE

The Kitchen Deluxe controller allows the user to select the temperature setting for the hot water to be used in
the kitchen and laundry. It has a minimum temperature setting of 37°C and a maximum temperature setting
of:

• 874 series 55ºC

The Kitchen Deluxe controller does not have priority (ACTIVE light is off) if a Bathroom Deluxe controller is
on.

Notes on the Kitchen Deluxe controller:

• The Deluxe controller cannot be turned on whilst a hot tap is open.

• The Kitchen Deluxe controller must be on and have priority (ACTIVE light glows) in order to adjust the

temperature setting on the Kitchen Deluxe controller.

• The Bathroom Deluxe controller(s) can be turned off from the Kitchen Deluxe controller.

Press and hold the ON / OFF button on the Kitchen Deluxe controller for three seconds. This turns off all
the Deluxe controllers, including the bath fill function if it is on, the displays go blank and the lights go
out. If hot water is flowing from a hot tap, it will go cold.



Rheem

BATH (l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

Kitchen Deluxe Controller

TEMPERATURE CONTROL – DELUXE

27

To operate the Kitchen Deluxe controller:

1. Turn off the Bathroom Deluxe controller(s)

 If a temperature setting is displayed and the ACTIVE

light is not glowing, it is necessary to turn off the
Bathroom Deluxe controller(s) to gain priority.

 Refer to the notes on the Kitchen Deluxe controller on

page 26.

2. Turn on the Kitchen Deluxe controller

 Press the ON / OFF button.

The light in the ON / OFF button and the ACTIVE
light will both glow.

The previous Kitchen Deluxe controller temperature
setting will be displayed on the temperature display
panel.

3. Select the temperature setting

 Press the up (i) button or down (j) button.

When the down (j) button is pressed, the voice
prompt will sound;

“hot water temperature has been increased”

When the down (j) button is pressed, the voice
prompt will sound;

“hot water temperature has been decreased”

 Refer to “Temperature Adjustment – Deluxe

Controllers” on page 25.

The selected temperature setting will be displayed
on all Deluxe controllers.

4. Open the hot tap.

The operating light will glow on all Deluxe controllers.

5. Close the hot tap.

The operating light will go out on all Deluxe controllers, if
no other hot tap is open.

6. Turn off the Kitchen Deluxe controller

 Press the ON / OFF button.

The ACTIVE light and the ON / OFF light will go out
and the temperature display panel will go blank.

Important: Turn off the Kitchen Deluxe controller after hot

water usage is finished in the kitchen and / or laundry. Refer

to Important note for Bathroom Deluxe controllers on

page 28.

BATH(l)

55

°C

8888

ACTIVE

BATHFILL ON/OFF

ON/OFF

BATH(l)

50

°C

8888

ACTIVE

BATHFILL

ON/OFF

BATH(l)

55

°C

8888

ACTIVE

BATHFILL

“hot water temperature

has been increased”,

or

“hot water temperature

has been decreased

”

ON/OFF

BATH(l)

55

°C

8888

ACTIVE

BATHFILL

ON/OFF

BATH(l)

55

°C

8888

ACTIVE

BATHFILL

BATH(l)

55

°C

8888

ACTIVE

BATHFILL ON/OFF

TEMPERATURE CONTROL – DELUXE

28

BATHROOM CONTROLLERS – DELUXE

The Bathroom Deluxe controller(s) allows the user to select the temperature setting for the hot water to be
used in the bathroom. They have a minimum temperature setting of 37°C and a maximum temperature
setting of:

• 874 series 50ºC

The Bathroom Deluxe controllers operate in tandem. Whenever an operation is selected on one Bathroom
Deluxe controller, it is also set on the other Bathroom Deluxe controller. The Bathroom Deluxe controllers
automatically have priority (ACTIVE light glows) if they are on.

Important: It is important to turn on the Bathroom Deluxe controller before opening a hot tap in the bathroom

(priority is gained automatically and the ACTIVE light glows). If the Bathroom Deluxe controller is not on and
the Kitchen Deluxe controller is on (will have priority and ACTIVE light glows), then it is possible to receive
water at a temperature higher than expected from a hot tap in the bathroom. This temperature could be up
to:

• 874 series 55ºC if a temperature limiting device is installed in the hot pipe to the

bathroom or up to 55°C if a temperature limiting device is not installed.

Notes on the Bathroom Deluxe controllers:

• The Deluxe controller cannot be turned on whilst a hot tap is open.

• When a Bathroom Deluxe controller is turned on, it gains priority (ACTIVE light glows) from the Kitchen

Deluxe controller.

• The Bathroom Deluxe controller must be on in order to adjust the temperature setting on the Bathroom

Deluxe controller.

• The Kitchen Deluxe controller can be turned off from a Bathroom Deluxe controller.

Press and hold the ON / OFF button on the Bathroom Deluxe controller for three seconds. This turns off
all the Deluxe controllers, including the bath fill function if it is on, the displays go blank and the lights go
out. If hot water is flowing from a hot tap, it will go cold.

• Warning: It is advised to leave the Bathroom Deluxe controller on after hot water usage is finished in

the bathroom. Turning off a Bathroom Deluxe controller in one bathroom will also turn off the
Bathroom Deluxe controller in the other bathroom. The Kitchen Deluxe controller will gain priority

(ACTIVE light glows) if it is on and the temperature setting can be up to:

 874 series 55°C

If a hot tap is open in another bathroom, the water will be delivered at up to 55°C for an 874 series
model if a temperature limiting device is installed in the hot pipe to the bathroom, or up to 55°C if a
temperature limiting device is not installed.



Rheem

BATH(l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

B1

BATHFILL

VOLUME

BATHFILL

TEMPERATURE

ACTIVE

Lighton

2.

Adjust

Temperature 

3.

Openhot

tap

4.HotWater

Press

1.

ON/OFF

Bath

Water

Volume

Bath
Fill
Temp

BathFill

SetBathFillWaterVolume

andTemperature

1. 2.

BathFill

completed

(automatic)

BathFillButton

(Redlightflashes)

6.Closehottap

5.

PressBath

FillButton

(Redlighton)

3.

4. Openhottap

BATHFILL

PressBath
FillButton

(Redlightoff)

7.

BATHFILL

Bathroom Deluxe

Controller

front cover

closed

front cover

open

TEMPERATURE CONTROL – DELUXE

29

To operate a Bathroom Deluxe controller:

1. TurnofftheKitchenDeluxecontroller

 Ifa temperature setting isdisplayed and the ACTIVE

and ON/OFF operating lights are not  glowing, it is
advisedtoturnofftheKitchenDeluxecontroller.

Refer to the notes on the Bathroom Deluxe

controllersonpage28.



2. TurnontheBathroomDeluxecontroller

 PresstheON/OFFbutton.

The light in the ON/OFF button and the ACTIVE
lightwillbothglow.

The previous temperaturesetting ofthe Bathroom
Deluxe controller will be displayed on the
temperaturedisplaypanel.



3. Selectthetemperaturesetting

 Presstheup(i)buttonordown(j)button.

When the up(i)button is pressed, the voice
promptwillsound;

“hotwatertemperaturehasbeenincreased”

When the down(j)button is pressed, the voice
promptwillsound;

“hotwatertemperaturehasbeendecreased”

 Refer to “Temperature Adjustment – Deluxe

Controllers”onpage25.

The selected temperature setting will be displayed
onallDeluxecontrollers.



4. Openthehottap

TheoperatinglightwillglowonallDeluxecontrollers.



5. Closethehottap

Theoperating light will go outonall Deluxecontrollers,
ifnootherhottapisopen.

It is advised not to turn off the Bathroom Deluxe
controller(s).

 Refertothewarninginthenotesonpage28.

BATH(l)

55

°C

8888

ACTIVE

BATHFILL ON/OFF

ON/OFF

BATH(l)

40

°C

8888

ACTIVE

BATHFILL

ON/OFF

BATH(l)

42

°C

8888

ACTIVE

BATHFILL

“hot water temperature

has been increased”,

or

“hot water temperature

has been decreased

”

ON/OFF

BATH(l)

42

°C

8888

ACTIVE

BATHFILL

ON/OFF

BATH(l)

42

°C

8888

ACTIVE

BATHFILL

TEMPERATURE CONTROL – DELUXE

30

BATH FILL MODE

The Bath Fill mode is designed to allow the water heater to deliver a selected volume of water at a selected
temperature. The Bath Fill mode commences when the BATH FILL button is on and a hot tap is opened.
When the set volume has been delivered, the water flow from the water heater ceases and heating stops. It
is also useful for controlling the water volume used by a shower or other application.

Note: The bath level should be monitored periodically while this function is in use to avoid the possibility of

the bath overflowing. The Bath Fill mode should be used with caution until you are familiar with its operation.

Warning: Baths should not be left unattended whenever young children are present. After using the

bath fill function, check the water temperature before entering a bath, to ensure it is suitable and will not
cause scald injury.

The Bath Fill mode can be set and turned off at any of the Deluxe controllers. Refer to the notes on page 36.

Bath Fill Mode – Brief Guide

This guide provides a brief instruction on the operating sequence of the bath fill function. It is recommended
to read the explanatory notes and become familiar with each step in the bath fill function. Refer to “Bath Fill

Mode – Explanatory Notes” on page 32.

To operate the Bath Fill Mode:

1. Turn off all Deluxe controllers

 It is advised to turn off all Deluxe controller(s) before

activating the Bath Fill mode.

Refer to the notes on the Bathroom Deluxe controllers
on page 28.

2. Pull down the front panel on the Deluxe controller.

The BATH FILL VOLUME and BATH FILL TEMPERATURE
up (i) and down (j) buttons will be exposed.

3. Set the Bath Fill temperature

 Press the BATH FILL TEMPERATURE i (up button) or

the BATH FILL TEMPERATURE j (down button) to

select the desired bath fill temperature.

 Refer to “Temperature Adjustment – Deluxe Controllers”

on page 25.

The selected temperature setting will be displayed on all
Deluxe controllers.

4. Set the bath fill water volume

 Press the BATH FILL VOLUME i (up button) or the

BATH FILL VOLUME j (down button) to select the

desired bath fill water volume. Each press will change the
water volume setting by 10 litres.

Pressing the BATH FILL VOLUME i (up button) or
BATH FILL VOLUME j (down button) continuously

will scroll the water volume setting.

A maximum volume of 990 litres and a minimum volume
of 10 litres can be set. The volume changes in 10 litre
increments.

The selected bath fill water volume will be displayed and
the bath fill indicator light will glow on all Deluxe
controllers.

BATH (l)

55

°C

8888

ACTIVE

BATHFILL ON/OFF

B1

BATHFILL

VOLUME

BATHFILL

TEMPERATURE

“hot water temperature has

been increased”

or

“hot water temperature has

been decreased”

BATH (l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

“caution, bath fill water volume has

been increased, bath may overflow”

or

“bath fill water volume has been

decreased

”

BATH (l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

TEMPERATURE CONTROL – DELUXE

31

5. Close the front panel on the Deluxe controller.

6. Turn on the Bath Fill mode

 Press the BATH FILL button.

On all Deluxe controllers:

 The BATH FILL operating light will glow.

 The bath fill temperature setting will appear on

the temperature display panel.

 The bath fill water volume will appear on the

bath fill water volume display panel.

 The bath fill indicator light will glow.

7. Open the hot tap.

The operating light will glow on all Deluxe controllers.

Measurement of the water flow at the water heater will
commence when the hot tap is opened.

When the set volume of water has passed through the
water heater:

 Water flow from the hot tap will cease.

 The operating light will go out.

 The bath fill water volume display panel will show

0 litres.

 The temperature display will go blank.

 The BATH FILL operating light will commence to flash

 The voice prompt will sound;

“the bath is ready, please turn off the hot water tap
and press the BATH FILL button to finish”

8. Close the hot tap.

9. Turn off the Bath Fill mode

 Press the BATH FILL button.

The BATH FILL operating light and bath fill indicator
light will go out.

The BATH FILL operating light and bath fill indicator
light will go out.

The bath fill water volume display will go blank.

Note: If the hot tap has not been turned off, the

voice prompt will sound;

“please ensure the bath hot water tap is turned off”

Rheem

“please set bath water volume

and bath temperature, then

open the hot water tap”

BATHFILL

BATH(l)

40

°C

120

ACTIVE

ON/OFF

BATHFILL

BATH(l)

40

°C

120

ACTIVE

ON/OFF

“the bath is ready,

p

lease turn off the hot water tap

and press the

BATH FILL button to finish”

BATHFILL

BATH(l)

40

°C

0

ACTIVE

ON/OFF



BATHFILL

BATH(l)

40

°C

0

ACTIVE

ON/OFF

“please ensure the bath hot

water tap is turned off”

BATH(l)

40

°C

0

A

CTIVE

ON/OFFBATHFILL

TEMPERATURE CONTROL – DELUXE

32

Bath Fill Mode – Explanatory Notes

To operate the Bath Fill mode:

1. Turn off all Deluxe controllers

 It is advised to turn off all Deluxe controller(s) before

activating the Bath Fill mode.

Refer to the notes on the Bathroom Deluxe

controllers on page 28.

The Deluxe controllers do not need to be on to set
the bath fill temperature and bath fill water volume
and to turn on the Bath Fill mode.

2. Pull down the front panel on the Deluxe controller.

The BATH FILL VOLUME and BATH FILL
TEMPERATURE up (i) and down (j) buttons will be
exposed.

3. Set the bath fill temperature

 Press the BATH FILL TEMPERATURE

i (up button) or the BATH FILL TEMPERATURE
j (down button).

The first press of either the BATH FILL

TEMPERATURE (up button) or the BATH FILL
TEMPERATURE (down button) will bring up the last

selected bath fill temperature setting.

While the bath fill temperature is displayed, each
subsequent press of the BATH FILL

TEMPERATURE (up button) or BATH FILL
TEMPERATURE (down button) will change the

temperature setting.

Refer to “Temperature Adjustment – Deluxe

Controllers” on page 25.

When the BATH FILL TEMPERATURE

i (up button) is pressed and the temperature

setting is increased, the voice prompt will sound;

“hot water temperature has been increased”

When the BATH FILL TEMPERATURE (down button) is pressed and the temperature setting is

decreased, the voice prompt will sound;

“hot water temperature has been decreased”

The selected temperature setting will be displayed in the temperature display panel and will be
displayed on all Deluxe controllers.

The temperature display panel will go blank 3 seconds after the last press of either of the bath fill
temperature adjustment buttons.

The bath fill temperature setting will be remembered when the BATH FILL button is pressed “on”.

BATH(l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

B1

BATHFILL
VOLUME

BATHFILL

TEMPERATURE

ACTIVE

Lighton

2.

Adjust

Temperature

3.

Openhot

tap

4.HotWater

Press

1.

ON/OF

F

Bath

Water

Volume

Bath
Fill
Temp

BathFill

SetBathFillWaterVolume

andTemperature

1. 2.

BathFill

completed

(automatic)

BathFillButton

(Redlightflashes)

6.Closehottap

5.

PressBath
FillButton

(Redlighton)

3.

4.Openhottap

BATHFILL

PressBath
FillButton

(R

edlightoff)

7.

BATHFILL

BATH (l)

40

°C

120

ACTIVE

ON/OFFBATHFILL

B1

BATHFILL

VOLUME

BATHFILL

TEMPERATURE

ACTIVE
Lighton

2.

Adjust

Temperature

3.

Openhot

tap

4.HotWater

Press

1.

ON/OFF

Bath

Water

Volume

Bath
Fill
Temp

BathFill

SetBathFillWaterVolume

andTemperature

1. 2.

BathFill
completed
(automatic)

BathFillButton

(Redlightflashes)

6.Closehottap

5.

PressBath
FillButton

(Redlighton)

3.

4.Openhottap

BATHFILL

PressBath
FillButton

(R

edlightoff)

7.

BATHFILL

“hot water

temperature

has been

increased”

or

“hot water

temperature

has been

decreased”

TEMPERATURE CONTROL – DELUXE

33

4. Set the bath fill water volume

 Press the BATH FILL VOLUME (up button) or the

BATH FILL VOLUME (down button).

The first press of either the BATH FILL VOLUME

i (up button) or the BATH FILL VOLUME
j(down button) will display the last selected bath fill

water volume setting in the bath fill water volume
display panel and the bath fill indicator light will
glow.

While the bath fill water volume is displayed, each
subsequent press of the BATH FILL VOLUME

i (up button) or BATH FILL VOLUME
j (down button) will change the water volume

setting by 10 litres.

When the BATH FILL VOLUME i (up button) is

pressed and the water volume setting is increased,
the voice prompt will sound;

“caution, bath fill water volume has been increased, bath may overflow”

When the BATH FILL VOLUME j (down button) is pressed and the water volume setting is

decreased, the voice prompt will sound;

“bath fill water volume has been decreased”

Pressing the BATH FILL VOLUME i (up button) or BATH FILL VOLUME j (down button)

continuously will scroll the water volume setting.

A maximum volume of 990 litres and a minimum volume of 10 litres can be set. The maximum
volume of 990 litres is achieved in 10 litre increments up to 500 litres, then 990 litres is the next
setting.

The selected bath fill water volume will be displayed and the bath fill indicator light will glow on all
Deluxe controllers.

The bath fill water volume display panel will go blank
and the bath fill indicator light will go out 3 seconds
after the last press of either of the volume
adjustment buttons.

The set volume will be remembered when the
BATH FILL button is next pressed “on”.

5. Close the front panel on the Deluxe controller.

6. Turn on the Bath Fill mode

 Press the BATH FILL button.

On all Deluxe controllers:

 The BATH FILL operating light will glow.

 The bath fill temperature setting will appear on

the temperature display panel.

 The bath fill water volume will appear on the

bath fill water volume display panel.

 The bath fill indicator light will glow.

 The voice prompt will sound;

“please set bath water volume and bath
temperature, then open the hot water tap”

BATH (l)

40

°C

120

A

CTIVE

ON/OFFBATHFILL

B1

BATHFILL

VOLUME

BATHFILL

TEMPERATURE

ACTIVE
Lighton

2.

Adjust

Temperature

3.

Openhot

tap

4.HotWater

Press

1.

ON/OFF

Bath

Water

Volume

Bath
Fill
Temp

BathFill

SetBathFillWaterVolume

andTemperature

1. 2.

BathFill

completed

(automatic)

BathFillButton

(Redlightflashes)

6.Closehottap

5.

PressBath
FillButton

(Redlighton)

3.

4.Openhottap

BATHFILL

PressBath
FillButton

(R

edlightoff)

7.

BATHFILL

“caution,

bath fill water

volume has been

increased,

bath may overflow

”

or

“bath fill water

volume has been

decreased”



Rheem

BATH(l)

40

°C

120

A

CTIVE

ON/OFFBATHFILL



BATHFILL

BATH(l)

40

°C

120

A

CTIVE

ON/OFF

Rheem

“please set

bath water volume

and

bath temperature,

then open the
hot water tap”

TEMPERATURE CONTROL – DELUXE

34

7. Open the hot tap.

The operating light will glow on all Deluxe controllers.

Measurement of the water flow at the water heater will
commence when the hot tap is opened.

Notes:

 If a second hot tap is opened when the Bath Fill mode

is turned on, the set bath fill water volume expected
from the first hot tap will be reduced by the volume
which flows through the second hot tap.

 The bath fill temperature setting and bath fill water

volume setting can also be adjusted whilst a hot tap is
open and the Bath Fill mode is operating.

When the set volume of water has passed through the
water heater:

 Water flow from the hot tap will cease.

 The operating light will go out.

 The bath fill water volume display panel will show

0 litres.

 The temperature display will go blank.

 The BATH FILL operating light will commence to flash

 The voice prompt will sound;

“the bath is ready, please turn off the hot water tap
and press the BATH FILL button to finish”

8. Close the hot tap.

9. Turn off the Bath Fill mode

 Press the BATH FILL button.

The BATH FILL operating light and bath fill indicator
light will go out.

The bath fill water volume display will go blank.

Note: If the hot tap has not been turned off, the

voice prompt will sound;

“please ensure the bath hot water tap is turned off”

BATHFILL

BATH(l)

40

°C

120

ACTIVE

ON/OFF

“the bath is ready,

p

lease turn off the hot water tap

and press the

BATH FILL button to finish”

BATHFILL

BATH(l)

40

°C

0

ACTIVE

ON/OFF



BATHFILL

BATH(l)

40

°C

0

ACTIVE

ON/OFF

“please ensure the bath hot

water tap is turned off”

BATH(l)

40

°C

0

A

CTIVE

ON/OFFBATHFILL

TEMPERATURE CONTROL – DELUXE

35

Turning Off Bath Fill Mode During Its Operation

The bath fill operation can be interrupted by pressing the BATH FILL button before completion of the bath fill
operation.

If it is necessary to turn off the Bath Fill mode before the operation is complete, during Step 7:

• Press the BATH FILL button

At this first press of the BATH FILL button

 Water flow from the hot tap will cease

 The operating light will go out

 The bath fill water volume display panel will show

0 litres.

 The temperature display will go blank

 The bath fill operating light will flash

 The voice prompt will sound

“bath filling has been stopped, please turn off the hot
water tap and press the BATH FILL button to finish”

• Close the hot tap

• Press the BATH FILL button again

At this second press of the BATH FILL button

 The bath fill operating light and bath fill indicator light

will go out

 The bath fill water volume display will go blank

 Note: If the hot tap has not been turned off, the voice

prompt will sound

“please ensure the bath hot water tap is turned off”

“bath filling has been stopped,

p

lease turn off the hot water tap

and press the

BATH FILL button to finish”

BATHFILL

BATH(l)

40

°C

0

A

CTIVE

ON/OFF



BATHFILL

BATH(l)

40

°C

0

ACTIVE

ON/OFF

“please ensure the bath hot

water tap is turned off”

BATH(l)

40

°C

0

A

CTIVE

ON/OFFBATHFILL

TEMPERATURE CONTROL – DELUXE

36

Notes on the Bath Fill mode:

• The Bath Fill mode can be set and turned on at any of the Deluxe controllers.

• The Deluxe controllers do not require to have priority (ACTIVE light glowing) or be on in order to set the

bath fill water volume or bath fill temperature or to turn the BATH FILL button on.

• The BATH FILL button cannot be turned on whilst a hot tap is open.

• The bath fill water volume and the bath fill temperature settings can be adjusted whilst a hot tap is open.

• If a hot tap is not opened for six hours after the new bath fill water volume and bath fill temperature has

been set, whilst the BATH FILL button is on, the settings will be automatically cancelled and will reset to
the previous settings or to the factory default settings if no previous settings have been set.

• The factory default bath fill water volume setting is 180 litres.

• The factory default bath fill temperature setting is 40°C.

• The Bath Fill mode will automatically have priority when the BATH FILL button is pressed and the

Bath Fill mode is turned on. If the ACTIVE light is glowing on a Deluxe controller, it will go out. The
ACTIVE light on a Deluxe controller will not glow whenever the BATH Fill operating light is on.

• Whilst water is flowing from a hot tap during the bath fill operation (BATH FILL operating light is on), a

Deluxe controller cannot be turned on or off:

 if it is on, pressing the ON / OFF button will not turn it off

 if it is off, pressing the ON / OFF button will not turn it on.

• Whilst there is no water flowing from a hot tap and the BATH FILL operating light is on, a Deluxe

controller can be turned on (ON / OFF light glows), but it will not gain priority (ACTIVE light will not
glow).

• Pressing the up (i) button or down (j) button above the ON / OFF button during the bath fill operation

(BATH FILL operating light is on) will not adjust the temperature setting.

Important

• Ensure all hot taps are turned off after a bath fill operation is complete and before pressing the

BATH FILL button “OFF”. Otherwise;

 Water will flow from the hot tap when the BATH FILL button is pressed “OFF”.

The water will be cold if all Deluxe controllers are off, or hot if a Deluxe controller is ACTIVE.

 The voice prompt will also sound;

“please ensure the bath hot water tap is turned off”.

TEMPERATURE CONTROL – DELUXE

37

Opening a Second Hot Water Tap During Bath Fill Operation

• The bath fill water volume is measured as the water flows through the water heater. If more than one hot

tap is open, the Bath Fill mode will measure the total water volume drawn from all taps and the expected
water volume from the first tap will be decreased.

 If the hot water supply should cease unexpectedly, check to see if the BATH FILL operating light is

flashing

 If the BATH FILL operating light is flashing, this indicates the set bath fill water volume has been

delivered and the bath fill operation is complete

 If further hot water is required for the application:

 Turn off the hot tap

 Press the bath fill button to turn off the Bath Fill mode

 Recommence the Bath Fill procedure from Step 3, ensuring the water volume is adjusted to the

volume required to complete the application.

Early Completion of Bath Fill Operation

• If the hot tap is closed before the set water volume flows through the water heater and the Bath Fill

button is left on, the Bath Fill mode remains active for six hours.

 If during this time a hot tap is turned on, the bath fill operation continues until the remaining bath fill

water volume is consumed, then

The water flow will cease and the voice prompt will sound;

“the bath is ready, please turn off the hot water tap and press the BATH FILL button to finish”

 Close the hot tap

 Press the BATH FILL button

 To prevent the bath fill operation completing and interrupting the hot water supply, whilst the hot tap

is off, then

 press the BATH FILL button twice to turn it off

The first press of the BATH FILL button causes the bath fill operating light to flash and the
voice prompt will sound

“bath filling has been stopped, please turn off the hot water tap and press the BATH FILL
button to finish”

The second press of the BATH FILL button causes the bath fill operating light to go off.

Interrupting Bath Fill Operation

• The bath fill operation can be interrupted by:

 Pressing the BATH FILL button before completion of the bath fill operation

Refer to “Turning Off Bath Fill Mode During Its Operation” on page 35, or by

 Pressing and holding the ON / OFF button on any Deluxe controller for three seconds.

This turns off all the Deluxe controllers, including the bath fill function. The displays go blank and
the lights go out.

A voice prompt will sound;

“bath filling has been stopped”

Hot water flowing from a hot tap will go cold.

 Turn off the hot tap.

TEMPERATURE CONTROL – DELUXE

38

Operation of the Bath Fill mode whilst a Deluxe Controller is ACTIVE

It is recommended the Bath Fill mode be set and operated with the Deluxe controllers turned off (refer to

Step 1 on page 32).

However, if a Deluxe controller is ACTIVE during the setting and operation of the Bath Fill mode, then the
following additional events occur:

During Step 3, when the bath fill temperature is being set

• The temperature setting of the ACTIVE Deluxe controller will

display in the temperature display panel three seconds after
the BATH FILL TEMPERATURE button is last pressed.

When the Deluxe controller temperature setting is higher
than the bath fill temperature setting, the voice prompt will
sound;

“hot water temperature has been increased”

When the Deluxe controller temperature setting is lower than
the bath fill temperature setting, the voice prompt will sound;

“hot water temperature has been decreased”

During Step 6, when the BATH FILL button is pressed to turn the Bath Fill mode on

The Bath Fill mode has priority when operating. When the BATH FILL button is pressed, the Bath Fill mode
will gain priority and over-ride the settings of all Deluxe controllers if they are on.

• The ACTIVE light will go out if it is on.

• The bath fill temperature setting will replace the temperature

setting in the temperature display panel.

When the bath fill temperature setting is lower than the
Deluxe controller temperature setting, the voice prompt will
sound;

“hot water temperature has been decreased”

When the bath fill temperature setting is higher than the
Deluxe controller temperature setting, the voice prompt will
sound;

“hot water temperature has been increased”

During Step 9, when the BATH FILL button is pressed to turn the

Bath Fill mode off

• The ACTIVE light will glow on the Deluxe controller which

has priority.

• The temperature setting of the ACTIVE Deluxe controller will

display in the temperature display panel.

Notes

• If it is a Bathroom Deluxe controller which is in use and it is on, i.e. it has priority and the ACTIVE light is

glowing, then it is advised to leave the controller on.

Refer to the warning in the notes on page 28.

• If it is the Kitchen Deluxe controller which is in use and it is on, i.e. it has priority and the ACTIVE light is

glowing, then it is advised to turn the controller off.

Refer to Important note for Bathroom controllers on page 28.

“hot water temperature has

been increased”

or

“hot water temperature has

been decreased

”

BATH (l)

46

°C

120

ACTIVE

ON/OFFBATHFILL

“hot water temperature has

been decreased”

or

“hot water temperature has

been increased

”

BATH (l)

40

°C

120

ACTIVE

BATHFILL ON/OFF

BATH (l)

46

°C

120

A

CTIVE

ON/OFFBATHFILL

39

SAVE A SERVICE CALL

Check the items below before making a service call. You will be charged for attending to any condition or
fault, which is not related to manufacture or failure of a part (refer to “Warranty” on page 74).

NO DISPLAY ON THE CONTROLLER

• Is the controller turned on?

Press the on / off button (refer to “Temperature Control” on pages 9 to 38).

• Is the water heater plugged in and the power outlet switched on?

• Is power available in the house?

Try using another electrical appliance.

COLD WATER FROM THE HOT TAP

• Is the controller turned on?

Press the on / off button (refer to “Temperature Control” on
pages 9 to 38).

• Close the hot tap, wait 10 seconds and open the hot tap again.

• Is the hot tap open enough?

The burners will not light if the flow rate is less than 3.0 L / min.

• Is the water heater plugged in and the power outlet switched on?

• Is power available in the house?

Try using another electrical appliance.

• Is the isolation valve in the gas line open?

• Is there a gas supply to the rest of the house?

Try lighting another gas appliance.

• Has the gas line been purged of air after installation?

Refer to your plumber.

WATER IS TOO HOT OR NOT HOT ENOUGH

• Does the controller you are using have priority? (refer to “Temperature Control” on pages 9 to 38)

NO WATER FROM THE HOT TAP

No flow of water from the hot tap may indicate a restriction in or failure of the cold water supply to the water
heater. Check for water flow at other taps and that the cold water isolation valve (refer to page 54) is fully
open.

WATER FLOW FLUCTUATES

More than two or three taps in use at the same time may cause a decrease in the hot water flow from the
taps. This can also be evident if the water heater has been installed as a gas booster water heater to a solar
preheat water heater and the solar preheat water is at a low temperature.

• Are there more than two or three taps open, or are appliances such as a dishwasher or washing

machine, in use at the same time?

Ensure only two or three taps or appliances are on at the one time.

• Check the flow of the water from one tap, eg, the shower.

The shower should be adjusted so the hot tap is fully open.

SAVE A SERVICE CALL

40

GAS BOOSTER OPERATING TOO FREQUENTLY

If the water heater is installed as a gas booster water heater to a solar preheat water heater, you may find
that the water heater operates more frequently than expected. This will occur when the solar preheat water
temperature is lower than 58°C, which may be experienced during periods of low solar energy gain or if there
has been heavy hot water usage. Factors to consider are:

• Hot tap not used recently

If a hot tap has not been used for a while, the water in the pipe work between the solar water heater and
the gas booster water heater may have cooled down. The water heater will sense the cooler water and
this will cause the burners on the water heater to ignite and boost the water temperature when a hot tap
is first turned on. The burners will extinguish when solar preheated water of 58°C or higher from the
solar storage tank reaches the water heater (refer also to “Fan Continues to Run after Water Heater

Operation Stops” on page 40).

• Insufficient sunlight

Insufficient sunlight due to cloudy weather during summer months or low solar energy contribution in
winter months may mean the gas booster operates more often.

• Collectors shaded

If trees or other objects shade the solar collectors or if the glass is dirty, the effectiveness of the solar
collectors will be greatly reduced. Have the trees trimmed or the solar collectors relocated if the
obstruction is permanent or clean the collector glass.

Ensure the glass on your solar collectors is free of dust, salt spray or any other matter, which may
reduce the effectiveness of the solar collectors. If the collector glass becomes dirty, hose down or if the
solar collectors are accessible, wash the collector glass with water and a soft brush when the solar
collectors are cool.

• Collector area is too small

For most installations, the number of solar collectors recommended in Rheem literature has been
proven to provide the required solar energy to meet the average family needs. However, in some
circumstances, it may be necessary to install an additional solar collector.

• Are you using more hot water than you think?

Is one outlet (especially the shower) using more hot water than you think?

Very often it is not realised the amount of hot water used, particularly when showering. Carefully review
the family’s hot water usage. As you have installed an energy saving appliance, energy saving should
also be practised in the home. Adjust your water usage pattern to take advantage of maximum solar
gains.

Have your plumber install a flow control valve to each shower outlet, basin and sink to reduce water
usage.

• Water heater size

Do you have the correct size water heater for your requirements?

The sizing guide in the sales literature and on the Rheem website (www.rheem.com.au) suggests
average sizes that may be needed.

FAN CONTINUES TO RUN AFTER WATER HEATER OPERATION STOPS

It is the normal operation of the water heater for the fan to continue running after heating of the water is
finished. The fan may run for up to six minutes after the burners extinguish, to prepare for the next ignition.

SAVE A SERVICE CALL

41

CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL

During the heating cycle, it is not unusual to see water vapour clouds
steaming from the flue terminal, particularly on cold days. This is
normal operation of the water heater.

PRESSURE RELIEF VALVE DISCHARGING

A pressure relief valve is incorporated into the water heater controls.
This valve protects the water heater, by allowing water to escape, in
the event of excessive pressure build up in the waterways.

• Normal operation

A small volume of water may discharge from the bottom of the
water heater when a hot tap is suddenly closed.

• Continuous dribble

A continuous dribble may indicate the water supply pressure is
above the design pressure for the water heater. If so, a pressure
limiting valve must be installed on the cold water supply pipe to
the water heater (refer to “Mains Water Supply” on page 44).

ERROR CODE

The water heater provides a diagnostic error code in the event of an interruption to its operation. The error
code is displayed on the controller(s) (if installed) and on the OK MONITOR on the front of the water heater
as a numerical value. If an error code appears:

• Close the hot tap, turn off the controller(s) and switch off the

electrical supply to the water heater.

• Check the gas isolation valve at the gas inlet to the water heater is

fully open.

• Wait 5 minutes, then switch on the electrical supply to the water

heater, turn on a controller and open a hot tap.

If the error code persists, take note of the numerical code, turn off the
hot tap and turn off the controller(s). Phone your nearest Rheem
Service Department or Accredited Service Centre to arrange for
inspection.

HIGH GAS BILLS

Should you at any time, feel your gas account is too high, we suggest
you check the following points:

• Is one outlet (especially the shower) using more hot water than

you think?

Carefully review the family’s hot water usage. Inexpensive flow
control valves can be easily fitted to the shower outlets to reduce
water usage.

• Is the gas booster water heater operating too frequently?

Refer to “Gas Booster Operating Too Frequently” on page 40.

• Consider recent changes to your hot water usage pattern and

check if there has been any increase in tariffs since your previous
account.

IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, CALL
YOUR NEAREST RHEEM SERVICE DEPARTMENT OR ACCREDITED SERVICE CENTRE.

42

INSTALLATION – WATER HEATER

THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY.
THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING.
Check the water heater is suitable for the gas type available.
(refer to the rating label on the water heater)

The 874 series of water heater may be installed as an in-series gas booster water heater to a solar preheat
water heater. For information relating to the function and operation of the solar water heater, refer to the
Owner’s Guide and Installation Instructions supplied with the solar water heater.

The installation must comply with these installation instructions and with the requirements of Standards
AS/NZS 3500.4 and NZS 5261 and all local codes and regulatory authority requirements.

All packaging must be removed from the water heater prior to its installation.

WATER HEATER LOCATION

The water heater should be installed close to the most frequently used outlet and its position chosen with
safety and service in mind. If this water heater is part of a solar water heater system, it should also be
installed close to the solar storage tank. Make sure people (particularly children) will not touch the flue
terminal. The flue terminal and air inlet must be clear of obstructions and shrubbery.

Clearance must be allowed for servicing of the water heater. The
water heater must be accessible without the use of a ladder or
scaffold. Make sure the entire front panel can be removed for
service. You must be able to read the information on the rating
plate. Remember you may have to take the entire water heater out
later for servicing.

This water heater must be installed vertically upright with the water,
gas and power connections on the underside, pointing toward the
ground. The back of the water heater can be either against a wall or
supported by a frame. The water heater must be secured to the wall
or frame using suitable mounting screws, two each at the top and
bottom of the unit (refer to page 49 for mounting hole positions).
Alternatively the water heater can be recessed into a wall (refer to

“Recess Installation” on page 43).

• For a single water heater installation, refer to the diagram on page 52.

The water heater must not be installed in an area with a corrosive atmosphere where chemicals are stored or
where aerosol propellants are released. Remember the air may be safe to breathe, but when it goes through
a flame, chemical changes take place which may attack the water heater.

A secondary flue is not required. The water heater must not be installed indoors or in a confined space.

INSTALLATION – WATER HEATER

43

As a guide the following requirements extracted from the New Zealand Gas Installations Standard NZS
5261, must be observed.

• At least 300 mm between the top of the flue terminal and the eaves.

• At least 300 mm (024) or 500 mm (027) between the

flue terminal and the edge of any opening into the
building, measured horizontally along the wall.

• At least 300 mm between the flue terminal and a

return wall or external corner, measured horizontally
along the wall.

• At least 1500 mm between the top of the flue terminal

and below any openable window measured vertically.

• At least 1500 mm between the flue terminal and any

opening into a building, in the direction of the flue
discharge.

• At least 500 mm between the flue terminal and a

fence, wall or other obstruction, in the direction of the
flue discharge.

PIPE COVER

The pipe work to the water heater can be housed within a pipe cover. A pipe cover kit (PN 299848) is
available for such an installation. Refer to the installation instructions which accompany the pipe cover kit.

RECESS INSTALLATION

The water heater can be installed recessed into a wall. A recess box (PN 299849) is available for such an
installation. An additional rating label is supplied with the water heater. This must be placed on either the
front panel of the water heater or to another position which is visible when the water heater is installed. Refer
to the installation instructions which accompany the recess box kit for information on its installation.

FROST PROTECTION

The water heater has a frost protection system. The frost protection system will protect the water heater from
damage, by preventing ice forming in the waterways of the water heater, in the event of freezing conditions
occurring.

The frost protection system will be rendered inoperable if electrical power is not available at the water heater.
Damage to the water heater caused by freezing of the pipe work to or from the water heater is not covered
under warranty. Refer to AS/NZS 3500.4 for precautions to be taken for installations in frost prone areas.
The water heater is not suitable for installation in areas where the ambient temperature falls below -20ºC
(including wind chill factor).

The cold water line to the water heater must be insulated with suitable thickness insulation if freezing
conditions are likely to occur. The insulation must be fitted to the underside of the water heater and be
weatherproof and UV resistant if exposed.

INSTALLATION – WATER HEATER

44

MAINS WATER SUPPLY

Where the mains water supply pressure exceeds that shown in the table below, an approved pressure
limiting valve that does not have non return valve characteristics (such as an RMC PSL series valve) is
required and should be fitted as shown in the installation diagram (refer to page 52).

Model 874027

Relief valve setting 1750 kPa

Max. mains supply pressure 1000 kPa

Min. mains supply pressure * 140 kPa

* minimum water supply pressure required to achieve the
rated flow and performance

Notes:

• It is not recommended to install this water heater with a low pressure water supply.

• A minimum water supply pressure of 140 kPa is required to achieve the rated flow and performance of

the water heater.

• If this water heater is installed as a gas booster for a solar water heater, the maximum water supply

pressure to the solar preheat water heater, without an expansion control valve (ECV), is generally
800 kPa, however it may be less than this for some models. Refer to the Owner’s Guide and Installation
Instructions supplied with the solar water heater for maximum mains supply pressure details.

• This water heater is not suitable for connection to bore water or spring water unless a water treatment

device is fitted.

• If sludge or foreign matter is present in the water supply, it is recommended a suitable filter be

incorporated in the cold water line to the water heater.

• Refer to “Water Supplies” on page 72.

INSTALLATION – WATER HEATER

45

HOT WATER DELIVERY

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

It is necessary and we recommend that a temperature limiting device be fitted between an 874 series water
heater and the hot water outlets in any ablution and public areas such as a bathroom, ensuite or public
amenities, to reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the
installation of this water heater meets the delivery water temperature requirements of AS/NZS 3500.4 so that
scalding water temperatures are not delivered to a bathroom, ensuite or other ablution or public area.

The temperature limiting device used with an electronic continuous flow gas water heater should have:

• a specified minimum temperature differential between the hot water inlet and the tempered water outlet

of no greater than 10°C, and

• a specified maximum permitted pressure variation in the supply between the hot water inlet and the cold

water inlet of no less than 15%.

Where a temperature limiting device is installed adjacent to the water heater, the cold water line to the
temperature limiting device can be branched off the cold water line either before or after the isolation valve
and pressure limiting valve to the water heater.

If a pressure limiting valve is installed on the cold water line to the water heater and the cold water line to a
temperature limiting device branches off before this valve or from another cold water line in the premises,
then a pressure limiting valve of an equal pressure setting may be required prior to the temperature limiting
device.

Two Temperature Zones Using a Temperature Limiting Device

An 874 series water heater will not deliver temperatures exceeding 55°C in accordance with AS 3498. There
is no statutory requirement in AS/NZS 3500.4 to fit a temperature limiting device if this water heater is
installed in other than an early childhood centre, school, nursing home or a facility for young, aged, sick or
disabled people. Refer to “Water Temperature Diagrams” on page 48.

Gas Booster for a Solar Water Heater

The temperature limiting device used with an 874 series gas booster water heater as part of a solar water
heater installation must have the additional capability of receiving a hot water supply temperature of up to
99°C if the solar preheat water heater does not have an over temperature protection system to limit the water
to no greater than 90°C, such as the Rheem Premier Hiline thermosiphon closed circuit system.

Warning: Temperature controllers must not be fitted to this water heater as part of a solar water heater

system (874 series) because water at a temperature much higher than the controller setting can be
delivered. If a solar preheater has been installed to an existing water heater installation, then all controllers

must be disconnected and removed.

INSTALLATION – WATER HEATER

46

Where a temperature limiting device is installed adjacent to the gas booster water heater, the cold water line
to the temperature limiting device can be branched off the cold water line either before or after the isolation

valve and pressure limiting valve to the solar storage tank, but it MUST BE

before the non return valve prior
to an open circuit direct system. The cold water line to the temperature limiting device can be branched off
the cold water line either before or after the non return valve prior to a closed circuit indirect system. If an
expansion control valve is required, it must always be installed after the non return valve and be the last
valve prior to the solar storage tank.

Warning: A non return valve MUST BE installed on the cold water line to the solar storage tank AFTER

the cold water branch to a temperature limiting device prior to an open circuit direct system. Due to the
higher water temperatures generated under certain conditions in the solar collectors of an open circuit direct
solar water heater, an additional effective back-flow prevention device also should be used as an extra
safeguard. Valve manufacturer RMC recommends Dual Check Valve model N7150, as being suitable for this
application.

If a combination isolation valve and non return valve (duo or trio valve) is installed on the cold water line to
an open circuit direct solar water heater and the cold water line to the temperature limiting device branches
off after this valve, then a second non return valve must be installed between the cold water branch and the
solar storage tank. Due to the higher water temperatures generated under certain conditions in the solar
collectors of an open circuit direct pumped solar water heater, an effective back-flow prevention device
should be used as the second non return valve as an extra safeguard. Valve manufacturer RMC
recommends Dual Check Valve model N7150, as being suitable for this application.

If a pressure limiting valve is installed on the cold water line to the solar water heater and the cold water line
to a temperature limiting device branches off before this valve or from another cold water line in the
premises, then a pressure limiting valve of an equal pressure setting may be required prior to the
temperature limiting device.

Gas Booster for Open Circuit Direct Solar Preheater Installation

Two Temperature Zones Using a Temperature Li miting Device

Gas Booster for Closed Circuit Solar Preheater Installation

Two Temperature Zones Using a Temperature Li miting Device

From solar

storage tank

To solar

storage tank

from solar

storage tank

to solar

storage tank

INSTALLATION – WATER HEATER

47

CIRCULATED HOT WATER FLOW AND RETURN SYSTEM

A Rheem continuous flow water heater cannot be installed as part of a circulated hot water flow and return
system in a building.

If a circulated flow and return system is required, it is necessary to bypass the continuous flow water heater
and install a secondary water heater connected to the hot water flow and return line and supplied from the
continuous flow water heater. The secondary water heater must be a storage water heater able to provide a

hot water outlet temperature of at least 60°C. Note: The thermostat must always be set to at least 60°C.

Temperature Limiting Device

A temperature limiting device cannot be installed in circulated hot water flow and return pipe work. The
tempered water from a temperature limiting device cannot be circulated. Where a circulated hot water flow
and return system is required in a building, a temperature limiting device can only be installed on a dead leg,
branching off the circulated hot water flow and return pipe.

If circulated tempered water were to be returned back to the water heater, depending on the location of the
return line connection on the water supply line to the water heater, then either:

• water will be supplied to the cold water inlet of the temperature limiting device at a temperature

exceeding the maximum recommended water supply temperature, or

• when the hot taps are closed no water will be supplied to the cold water inlet of the temperature limiting

device whilst hot water will continue to be supplied to the hot water inlet of the temperature limiting
device.

These conditions may result in either water at a temperature exceeding the requirements of AS/NZS 3500.4
being delivered to the hot water outlets in the ablution areas, or the device closing completely and not
delivering water at all, or the device failing. Under either condition, the operation and performance of the
device cannot be guaranteed.

Recirculated Hot Water Flow and Return - Continuous flow Gas Water Heater

REDUCING HEAT LOSSES

The hot water line from the water heater and the pipe work between the solar storage tank, if one is installed,
and the gas booster water heater must be insulated in accordance with the requirements of AS/NZS 3500.4.
The insulation must be weatherproof and UV resistant if exposed. The insulation must be fitted up to the
connections on the both the underside of the water heater and the solar storage tank.

INSTALLATION – WATER HEATER

48

WATER TEMPERATURE DIAGRAMS

874 Series - Kitchen and Bathroom Controllers

874 Series - Kitchen Controller Only

874 Series - Bathroom Controllers Only

874 Series - No Controllers
Notes:

• Temperature Limiting Devices – refer to “Hot Water Delivery” on page 45.

• Factory preset outlet temperature setting is:

 874 series 55°C

55°C

55°C

55°C

55°C

55°C

INSTALLATION – WATER HEATER

49

Dimensions And Technical Data

Model

874 027

Rated delivery

(@ 40°C rise)

litres / min

16.5

Recovery

(@ 25°C rise)

litres / min

27

Mass Empty

kg

24

Gas Details

Hourly Gas

Consumption

(MJ)

Min Gas Pressure

(kPa)

Test Point Gas Pressure (kPa)

Max Gas Pressure

(kPa)

minimum maximum

Model

027 027 027 027 027

Natural 205 1.13 0.193 0.905 3.50

LPG 205 2.75 0.277 1.430 3.50

Model numbers: N = Natural, L = LPG
Letter N or L is included in the model number, eg 874027NFZ, to denote gas type.
F = Frost protection.
Specifications are subject to change with ongoing product improvements.

INSTALLATION – WATER HEATER

50

DIMENSIONS – STANDARD CONTROLLERS

Kitchen Controller (Standard)

Bathroom Controller (Standard)

INSTALLATION – WATER HEATER

51

DIMENSIONS – DELUXE CONTROLLERS

120

120

24

120

Deluxe Controller – Cover Closed

UUP

Set Bath Fill Water Volume

and Temperature

Bath

Water

Volume

Bath
Fill
Temp

Bath Fill

1. 2. 3. 5. 7.

Press Bath
Fill Button

(Red light on)

4.

Open hot tap

Bath Fill
completed
(automatic)

Bath Fill Button

(Red light flashes)

6.

Close hot tap

Press Bath

Fill Button

(Red light on)

BATH FILLBATH FILL

Hot Water

Press

ACTIVE

Light on

ON/OFF

Adjust

Temperature

Open hot

tap

1. 2. 3. 4.

160 160

120120

Deluxe Controller – Cover Open

INSTALLATION – WATER HEATER

52

TYPICAL INSTALLATION – OUTDOOR LOCATION

TYPICAL INSTALLATION

ELECTRONIC CONTINUOUS FLOW GAS WATER HEATER

EXTERNAL MODELS 874 SERIES

NZS 5261

INSTALLATION – WATER HEATER

53

TYPICAL INSTALLATION – GAS BOOSTER FOR SOLAR WATER HEATER

Solar Loline Open Circuit With An In-Series Gas Booster Water Heater (Top)

Solar Premier Loline Closed Circuit With An In-Series Gas Booster Water Heater (Bottom)

NZS:5261

NZS: 5261 NZS:5261

NZS:5261

TOP Solar Loline Open Circuit with an In-Series Gas Booster Water Heater

Bottom Solar Premiere Loline Closed Circuit with an In-Series Gas Booster Water Heater

INSTALLATION – WATER HEATER

54

[Type a quote from the document or the
summary of an interesting point. You
can position the text box anywhere in
the document. Use the Text Box Tools
tab to change the formatting of the pull
quote text box.]

Solar Premiere Hiline Closed Circuit with an In-Series Gas Booster Water Heater

NZS:5261

Solar Hiline Open Circuit with an In-Series Gas Booster Water

NZS:5261

55

CONNECTIONS – PLUMBING

CONNECTION SIZES

Model

874 027

Hot water connection R¾/20

Cold water connection R¾/20

Gas inlet connection R¾/20

All plumbing work must be carried out by a qualified person and in accordance with the National Plumbing
Standard AS/NZS 3500.4 and local authority requirements.

All gas work must be carried out by a qualified person and in accordance with the New Zealand Gas
Installations Standard NZS 5261 and local authority requirements.

WATER INLET AND OUTLET

All pipe work must be cleared of foreign matter before
connection and purged before attempting to operate the
water heater. All olive compression fittings must use brass
or copper olives. Use thread sealing tape or approved
thread sealant on all fittings.

A full flow gate valve or ball valve must be installed on the
cold water line or solar preheat water line to the water

heater. A non return valve or stop tap must not be
installed. An acceptable arrangement is shown in the

diagram. Refer also to “Hot Water Delivery” on page 45
and to “Mains Water Supply” on page 44.

A disconnection union must always be provided at the cold
water inlet and hot water outlet on the water heater to
allow for disconnection of the water heater.

Insulation used on the cold and hot water lines must
extend up to the cold water inlet and hot water outlet of the
water heater.

Notes:

• It is essential all pipe connections be correctly aligned,

otherwise component connections within the water
heater may be strained and / or components
themselves misaligned. It is recommended also,
wherever possible, pipe connections be made at the
water heater first and final pipe runs be made in soft
copper pipe to allow some adjustment for
misalignment.

• Use the spanner flats on the water heater fittings and

take care to avoid twisting the water inlet and outlet
pipes inside the jacket.

• 874 series gas booster water heaters do not need to

be installed with a solar bypass valve.

• The maximum supply temperature to the water heater

when used as an in-series gas booster for a solar
preheat water heater is 80°C.

HOT

WATER

POWER

CORD

PRESSURE

LIMITING

VALVE

GATE VALVE

OR

BALL VALVE

GAS

COCK

COLD

WATER

GAS

Gas Water Heater

Cold and Hot Water Connection Details

HOT

WATER

POWER

CORD

GATE VALVE

OR

BALL VALVE

GAS

COCK

SOLAR

PREHEAT

WATER

GAS

Gas Booster for a Solar Preheater

Solar Preheat and Hot Water

CONNECTIONS – PLUMBING

56

PIPE SIZES

The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing
the most suitable pipe size to ensure adequate flow for each individual application. Reference to the
technical specifications of the water heater and local regulatory authority requirements must be made.

To achieve true mains pressure operation, the cold water line to the water heater should be the same size or
bigger than the hot water line from the water heater.

The minimum recommended cold pipe or solar preheat pipe and hot pipe size is DN20.

IN-SERIES BOOST WATER HEATER

The pipe work between the solar storage tank (if one is installed) and the gas booster water heater has a

minimum recommended pipe size of DN20, MUST BE

of copper and be fully insulated in accordance with
the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The
insulation must be fitted up to the connections on both the solar storage tank and the gas booster water
heater. A full flow isolation valve must be installed on the water line to the gas booster water heater.

GAS INLET

The gas connection is made at the underside of the water heater. The pipe work must be cleared of foreign
matter before connection and purged before attempting to operate the water heater. An isolation valve and
disconnection union must be installed to allow servicing and removal of the water heater (refer to the

diagram on page 54).

Note: Refer to the Gas Installations Standard NZS 5261 for the correct method of sizing the gas supply pipe

to the water heater. The pipe size selection must take into account the high gas input of this water heater

(refer to table on page 49) as well as all of the other gas appliances in the premises.

Warning: Always isolate the water heater before pressure testing the gas supply system. Disconnect the

water heater after the isolation valve to prevent the risk of serious damage to the gas control. Warranty does
not cover damage of any nature resulting from failure to observe this precaution. Refer to rating label for gas
types and pressures.

57

CONNECTIONS – ELECTRICAL

All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the
Wiring Rules AS/NZS 3000 and local authority requirements.

Warning: Temperature controllers must not be fitted to this water heater (874 series) as part of a solar

water heater system or if a Water Star water heater is installed because water at a temperature much higher
than the controller setting can be delivered. If a solar preheater has been installed to an existing water heater

installation, then all controllers must be disconnected and removed.

The water heater is supplied with a 1.8 metre lead and plug and requires a weatherproof 240 V 50 Hz
general purpose outlet (GPO) to be located within 1.2 metres of the installation. The GPO must be clear of
the flue exhaust, draining water, gas supply pipe and water connections.

The power consumption of the water heater is:

Component

Power

consumption

Comments

Gas water heater 80 Watts 874027 – Burner on, anti frost device inactive

175 Watts Burner on, anti frost device active

The water heater will only operate on a sine wave at 50 Hz. Devices generating a square wave cannot be
used to supply power to the water heater.

58

INSTALLATION – CONTROLLERS

CONTROLLERS

The Rheem 874 series can be installed with Rheem controllers to enable the user to control the temperature
of the delivered water from the outlet of the water heater.

There are two families of Rheem controllers suitable for installation with this water heater. These are the
standard controllers and the Deluxe controllers.

Standard Controllers

There are three types of standard controller. They are the Kitchen controller (Rheem PN 299853),
Bathroom1 controller (Rheem PN 299854) and the Bathroom2 controller (Rheem PN 299855).

The standard controllers are suitable for use on all 874 models.

The standard controllers are identified by a ‘K’ (Kitchen controller), ‘B1’ (Bathroom1 controller) or ‘B2’
(Bathroom2 controller) located on the front bottom left hand corner of the standard controller.

Deluxe Controllers

There are three types of Deluxe controller. They are the Kitchen Deluxe controller (Rheem PN 299861),
Bathroom1 Deluxe controller (Rheem PN 299862) and the Bathroom2 Deluxe controller (Rheem
PN 299863).

The Deluxe controllers are suitable for use on all 874 models.

The Deluxe controllers are identified by a ‘K’ (Kitchen Deluxe controller), ‘B1’ (Bathroom1 Deluxe controller)
or ‘B2’ (Bathroom2 Deluxe controller), located under the front panel, to the bottom left hand corner adjacent
to the BATH FILL VOLUME label.

The standard and Deluxe controllers are designed to be hard wired into the water heater using either the
Kitchen controller cable (Rheem PN 299856) or the Bathroom controller cable (Rheem PN 299857).

Notes:

• Where more than one controller is installed, the second or third controller must be of the same family.

• A standard controller can only be installed with another standard controller(s) and a Deluxe controller

can only be installed with another Deluxe controller(s). A standard controller(s) and a Deluxe
controller(s) cannot be connected to the same water heater.

• One, two or three controllers can be installed. Only one of each type of controller can be connected to

the water heater. Therefore, a maximum of three controllers only can be connected to each water
heater.

• A Bathroom2 controller can only be installed if a Bathroom1 controller is installed and a Bathroom2

Deluxe controller can only be installed if a Bathroom1 Deluxe controller is installed.

• An additional Kitchen controller cable or Bathroom controller cable can be used if an extension of the

cable length is required. It will be necessary to cut an opposite end off both cables to be installed in
order to wire them together. Alternatively, the cables may be extended using two-core flex with a
minimum cross-sectional area of 0.5 mm2.

• Other manufacturers’ controllers are not suitable for use and cannot be installed with this water heater.

Warning: Temperature controllers must not be fitted to this water heater (874 series) as part of a solar

water heater system, water at a temperature much higher than the controller setting can be delivered. If a

solar preheater has been installed to an existing water heater installation, then all controllers must be

disconnected and removed.

INSTALLATION – CONTROLLERS

59

Location – The controllers must be installed in dry, shaded and clean locations.
Do not install the controllers:

• Near a heat source, such as a cook top, stove or oven. Heat, steam and smoke will interfere with the

electronic components of the controllers.

• In direct sunlight.

• In or near a wet area. The controllers are not waterproof. Water may damage the controllers.

• Outdoors. The controllers are not weatherproof.

KITCHEN CONTROLLER

The standard Kitchen controller (Rheem PN 299853) or Kitchen Deluxe controller (Rheem PN 299861) is to
be installed in the kitchen or laundry only. It has a minimum temperature setting of 37°C and a maximum
temperature setting of:

• 874 series 55°C

Choose a suitable location for the Kitchen controller, away from water, heat and sunlight.

Kitchen Controller (Standard) Components

Kitchen Deluxe Controller Components

screw x 2 controller screw

Kitchen controller (standard) base plate

screw x 2 controller screw

Kitchen Deluxe controller

base plate

INSTALLATION – CONTROLLERS

60

Wiring installation:

1. Penetrate the wall with a 30-35 mm hole at the controller location.

2. Install the Kitchen controller cable between the location of the controller and the water heater.

3. Remove the base plate from the controller.

4. Draw the cable through the central hole in the base plate.

5. Fix the base plate to the wall using suitable screws and wall anchors.

Ensure the projections in the base plate are pointing upwards.

6. Connect the cable to the two terminals on the back of the controller (connections are not polarity

sensitive).

Ensure the connecting screws are seated tightly.

7. Place the controller over the base plate.

Ensure the projections in the base plate fit into the housings in the controller.

8. Fix the controller to the base plate at the bottom of the controller, using the controller screw provided.

9. Proceed to “Connecting the Controller(s) to the Water Heater” on page 64.

Kitchen Controller (Standard and Deluxe) Installation

Concealed Cable

controller

cable

screws

terminal

screws

controller screw

base plate

wall

penetration

suitable wall

anchors

projections

INSTALLATION – CONTROLLERS

61

If it is necessary to have an exposed wiring installation, follow this procedure omitting Steps 1 and 4, and
make an opening in the thin section in the underside of the controller to accommodate the cable (as shown
in the diagram), prior to Step 6.

Kitchen Controller (Standard and Deluxe) Installation

Exposed Cable

controller

cable

screws

terminal

screws

controller

screw

base plate

opening

suitable wall

anchors

projections

INSTALLATION – CONTROLLERS

62

BATHROOM1 AND BATHROOM2 CONTROLLERS

If only one Bathroom controller is to be installed, the standard Bathroom1 Controller (Rheem PN 299854) or
the Bathroom1 Deluxe controller (Rheem PN 299862) must be used. If two Bathroom controllers are to be
installed, one must be a standard Bathroom1 controller and the other must be a standard Bathroom2
controller (Rheem PN 299855) or one must be a Bathroom1 Deluxe controller and the other must be a
Bathroom2 Deluxe controller (Rheem PN 299863).

They have a minimum temperature setting of 37°C and a maximum temperature setting of:

• 874 series 50ºC

The method of installation for the standard Bathroom1 and Bathroom2 controllers and the Bathroom1 Deluxe
and Bathroom2 Deluxe controllers is identical.

Choose a suitable location for each Bathroom controller, away from water, heat, and sunlight. The Bathroom
controllers are supplied with a 250 mm length of wire with connectors to mate with the Bathroom controller
cable.

Notes:

• It is not recommended to have exposed wiring in a bathroom.

• Do not apply sealant to the controller cable.

Bathroom1 and Bathroom2 Controller Components

Bathroom1 Deluxe and Bathroom2 Deluxe Controller Components

screw x 2 controller screw

base plate foam packing Bathroom controller (standard)

screw x 2 controller screw

base plate

foam packing Bathroom Deluxe controller

INSTALLATION – CONTROLLERS

63

Wiring installation:

1. Penetrate the wall with a 30-35 mm hole at the controller location.

2. Install the supplied cable between the location of the controller and the water heater.

3. Remove the base plate from the controller.

4. Peel off one side of the adhesive paper from the foam packing and adhere to the back face of the base

plate. This is the side without the projections.

5. Peel off the remaining adhesive paper from the foam packing.

6. Draw the cable through the central hole in the base plate.

7. Fix the base plate to the wall using suitable screws and wall anchors.

Ensure the projections in the base plate are pointing upwards.

8. Plug the controller wire into the Bathroom controller cable.

9. Place the controller over the base plate.

Ensure the projections in the base plate fit into the housings in the controller.

10. Fix the controller to the base plate at the bottom of the controller, using the screw provided.

11. Proceed to “Connecting the Controller(s) to the Water Heater” on page 64.

Bathroom Controller (Standard and Deluxe) Installation

controller

cable

screws

cable connectors

controller

screw

base plate

wall

penetration

suitable wall

anchors

adhesive paper

projections

foam packing

INSTALLATION – CONTROLLERS

64

CONNECTING THE CONTROLLER(S) TO THE WATER HEATER

To connect the controller(s) to the water heater:

1. Ensure the electrical supply to the water heater is

switched off.

2. Unscrew and gently remove the electrical cover from the

underside of the water heater.

3. Draw the cable(s) through the electrical cover.

4. Connect a cable lug from each cable to each of the

remote controller terminals. Each cable has two cable
lugs.

Ensure the terminal screws are seated firmly and there
are no excess wire loops inside of the electrical cover.

 The cable connections are non-polarised.

 Three cable lugs, one from each type of controller,

can be connected to each remote controller terminal.

5. Place the cable(s) in the cable holder notches.

It is important to seat the cables into the cable notches.
Failure to do this may cause an unstable contact or even
disconnection of the cables from the terminals if the
cables were to be pulled.

6. Refit the electrical cover to the water heater and replace

the screws.

7. Switch on the electrical supply to the water heater.

Upon completion of the installation of the controllers, it is necessary to test their operation through the
complete range of functions (refer to “Temperature Control” on pages 9 to 38).

Upon completion and testing of the installation, explain to the householder the functions and operation of the
controllers and the water heater.

If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises is vacant, follow the procedure “To Turn Off the Water Heater” on page 71.

CABLE

HOLDER

NOTCHES

CABLE

TERMINAL
SCREWS

PROJECTION

SCREW x 3

ELECTRICAL
COVER

65

COMMISSIONING

All water heaters are tested and adjusted before dispatch from the factory, however further adjustments may
become necessary because of local conditions.

TO TURN ON THE WATER HEATER

• Open all of the hot taps in the house (don’t forget the shower).

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

Air will be forced out of the taps.

• Close each tap as water flows freely from it.

• Check the pipe work for leaks.

• Open the gas isolation valve fully.

• Check the gas pipe work for leaks.

• Plug in the water heater at the power outlet and switch on the electrical supply.

• Turn on a controller, if one is fitted, by pressing the on / off button.

The light in the on / off button and the priority light (standard controller) or ACTIVE light (Deluxe
controller) will both glow.

• Open a hot tap.

The water heater will operate automatically.

• Check to ensure the flow from each connected hot tap is sufficient to operate the water heater.

The minimum operating flow rate for all models is 3.0 litres per minute.

The automatic water governor incorporated in the water heater is not adjustable.

To complete the installation, it is necessary to check the gas supply pressure at the inlet to the water heater
(refer to “Gas Inlet Pressure” on page 65), the minimum test point pressure and the maximum test point
pressure (refer to “Burner Gas Pressure” on page 67).

Upon completion and testing of the installation, ensure the controller(s) is turned off (if fitted). Explain to the
householder or a responsible officer the functions and operation of the water heater and the controllers (if
fitted).

Warning: Upon completion of the installation and commissioning of the water heater, leave this guide

with the householder or a 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.

GAS INLET PRESSURE
IMPORTANT - CHECK

the gas supply pressure at the inlet to the water heater with the water heater and all
other gas burning appliances in the premises operating (burners alight). The minimum gas supply pressure
is:

Natural Gas 1.13 kPa LPG 2.75 kPa

If this minimum cannot be achieved, it may indicate the meter or the gas line to the water heater is
undersized. It is important to ensure that an adequate gas supply pressure is available to the water heater
when other gas burning appliances, on the same gas supply, are operating.

COMMISSIONING

66

Gas Inlet Test Point Pressure

To check the gas inlet pressure:

1. Close any hot taps and ensure the

burners are not operating.

2. Close the gas isolation valve at the gas

inlet to the water heater.

3. Locate the gas inlet test point on the gas

connection to the water heater.

 Remove the test point screw and

washer from the test point orifice.

 Connect the manometer.

4. Open the gas isolation valve fully at the

gas inlet to the water heater.

5. Observe the gas pressure reading on

the manometer.

If the manometer reading is between the minimum and maximum inlet gas pressure ratings on the rating
label, no adjustment is required.

If the manometer reading is below the minimum inlet gas pressure rating on the rating label, then either
the gas pipe to the water heater is undersized and needs to be rectified or adjustment is required at the
gas regulator.

If the manometer reading is above the maximum inlet gas pressure ratings on the rating label, then
adjustment is required at the gas regulator.

6. Switch on the electrical supply at the power outlet to the water heater if it is not already switched on and

turn on a controller, if one is fitted, by pressing the on / off button.

7. Open a hot tap fully and ensure the burners are fully ignited.

It may be necessary to open a second tap.

8. Turn on all other gas burning appliances in the house which are on the same gas supply.

9. Observe the gas pressure reading on the manometer.

If the manometer reading is between the minimum and maximum inlet gas pressure ratings on the rating
label, no adjustment is required.

If the manometer reading is below the minimum inlet gas pressure rating on the rating label, then either
the gas pipe to the water heater is undersized and needs to be rectified or adjustment is required at the
gas regulator.

If the manometer reading is above the maximum inlet gas pressure ratings on the rating label, then
adjustment is required at the gas regulator.

10. Turn off the other gas burning appliances in the house.

11. If an adjustment was made during Step 9, repeat this procedure from Step 5.

12. Close the hot tap(s).

13. Close the gas isolation valve at the inlet to the water heater.

14. Remove the manometer and refit and tighten the test point screw and washer.

15. Open the gas isolation valve fully at the gas inlet to the water heater.

16. Open a hot tap again so the burners ignite.

17. Test for gas leaks.

18. Close the hot tap.

GAS INLET

INLET TEST

POINT ORIFICE

TEST
POINT
SCREW

WASHER

MANOMETER

COMMISSIONING

67

BURNER GAS PRESSURE

It is necessary to check the burner gas pressure at both the minimum and maximum operational settings. To
check and if necessary adjust the operational gas pressures, the electrical supply to the water heater must
be switched on, the burners ignited and hot water must be flowing from a hot tap.

Warning: The removal of the front panel will expose 240 volt wiring. Take care not to touch wiring

terminals.

Minimum test point gas pressure

Refer to the rating label on the water heater for the minimum test point gas pressure.

1. Close any hot taps and ensure the burners are not

operating.

2. Turn off the controller(s), if one is fitted, by pressing the

on / off button and switch off the electrical supply at the
power outlet to the water heater.

3. Remove the screws holding the front panel to the jacket.

4. Gently disengage the front panel and pull forward to

remove from the water heater.

5. Locate the burner pressure test point on the main burner

manifold.

 Remove the test point screw and washer from the

test point orifice.

 Connect the manometer.

6. Switch on the electrical supply at the power outlet to the

water heater and turn on a controller, if one is fitted, by
pressing the on / off button.

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

water heater, if not already open.

8. Open a hot tap slowly until the burners ignite.

9. Press and hold down the MIN button and observe the

reading on the manometer.

 “1L” is shown on the LED display.

10. Release the MIN button.

If the manometer reading observed in step 9 agrees with
the rating label, no further adjustment is required.

11. To adjust, press and hold the adjuster button.

 “LH” is shown on the LED display.

Note:

The adjuster button must be held down

continuously through steps 11 to 13.

12. Press and hold the MIN button and observe the reading

on the manometer.

 The manometer reading will change as the test point

gas pressure adjusts.

Note: While the MIN button is pressed, the gas pressure will at first increase then decrease, cycling

between an upper gas pressure limit (39 on the LED display) and a lower gas pressure limit (01 on the
LED display).

13. Release the MIN button when the reading on the manometer agrees with the rating label.

14. Release the adjuster button.

TEST
POINT
SCREW

WASHER

TEST POINT
ORIFICE

MANOMETER

MIN. BUTTON

MAX. BUTTON

ADJUSTER
BUTTON

DIP 1 SET OF
DIP SWITCHES

1234

OFF ON

DIP1

1234

ON

1234

OFF ON

DIP2

MIN MAX ADJ

1234

ON

COMMISSIONING

68

Notes:

• If the burners extinguish and error code 11 or 12 starts to flash on the LED display:

 release the MIN and adjuster buttons

 close the hot tap

 recommence the procedure from Step 8.

• If the adjuster button is released before Step 13, clear any error code (if displayed) and recommence the

procedure from Step 8.

Maximum test point gas pressure

Refer to the rating label on the water heater for the maximum test point gas pressure.

Follow Steps 8 to 14 of the “Minimum test point gas pressure” procedure,
but open the hot tap fully and use the MAX button instead of the MIN
button. It may be necessary to open two or three hot taps fully, depending
upon the model of water heater and the incoming cold water temperature.

Note: In Step 9, “3H” (874027 models) will be shown on the LED display.

After setting the minimum and maximum test point gas pressures:

• Close the hot tap.

• Remove the manometer and refit and tighten the test point screw and washer.

• Open a hot tap again so the burners ignite.

• Test for gas leaks.

• Close the hot tap.

• Turn off the controller, if one is fitted, by pressing the on / off button

• Switch off the electrical supply at the power outlet to the water heater

• Refit the front panel and screws to the water heater.

Clearing Error Code

If an error code does appear on the LED display during the installation and commissioning process, it will be
necessary to clear the error prior in order to complete the installation.

To clear an error code:

• switch off the electrical supply at the power outlet to the water heater

• check the gas isolation valve at the gas inlet to the water heater is fully open

• wait five (5) minutes

• switch on the electrical supply at the power outlet to the water heater

COMMISSIONING

69

PRESET OUTLET TEMPERATURE SETTING

The factory preset outlet temperature setting of the water heater is:

• 874 series 55°C

If a temperature controller is connected to the water heater, this will override the preset outlet temperature
setting and the maximum temperature setting will be:

Maximum Outlet Temperature 874 series

Kitchen controller connected 55°C

Bathroom controller only connected 50°C

It is usually not necessary to check or adjust the factory preset outlet temperature setting of the water heater,
unless the customer has a particular requirement for this to be done or it is to be installed as a gas booster to
a solar water heater.

Gas Booster for a Solar Water Heater

Where an 874 series water heater is installed as a gas booster to a solar water heater, the preset outlet
temperature setting must be set at 75°C for the system to operate correctly.

It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous
flow water heater when:

• it is installed as a gas booster as part of a solar water heater installation

• it is an existing continuous flow water heater and a solar preheat water heater is then installed.

Notes:

• Consideration must be given to the delivery temperature to any ablution and public areas such as a

bathroom, ensuite or public amenities. Refer to “Hot Water Delivery” on page 45 and to “Schematics of 2

Temperature Zones Using A Temperature Limiting Device” on page 46.

COMMISSIONING

70

WARNING: TEMPERATURE CHANGE MUST ONLY BE MADE BY A QU ALIFIED INSTALLER OR
RHEEM SERVICE CENTRE REPRESENTITIVE. SEVERE SCALD INJURIES COULD OCCUR IF BATHROOMS
AND ENSUITES ARE NOT PROTECTCED BY A HOT WATER TEMPERING DEVICE.

TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING

The temperature settings will be displayed on the LED display. The preset outlet temperature settings are:

• 874 series 38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 70°C and 75°C

It is necessary to have the electrical supply to the water heater switched on during stages of checking or
adjusting the preset outlet temperature setting procedure.

Warning: The removal of the front panel will expose 240 volt wiring. Take care not to touch wiring

terminals. The adjustment must be carried out by a qualified person.

Warning: This procedure will involve the adjustment of dip switches. Adjustment of a dip switch should

only be made with an insulated tool.

To check or adjust the preset outlet temperature setting:

1. Switch off the electrical supply at the power outlet to the water heater.

2. Remove the screws holding the front panel to the jacket.

3. Gently disengage the front panel and pull forward to remove from the water heater.

4. Switch on the electrical supply at the power outlet to the water heater.

5. Switch dip switches 3 and 4 to the on (up) position on the DIP 1 set of DIP switches on the I.C. Board.

The current preset outlet temperature setting will show on the LED
display.

If the temperature displayed on the LED display is the desired preset
outlet temperature setting, then proceed to step 7, as no further
adjustment is necessary.

874 series

If the water heater is to be used as a gas booster to a solar water
heater and ‘55’ is shown on the display, then proceed to step 6, as
further adjustment is necessary.

6. Press the MAX button to increase or the MIN button to decrease the

preset outlet temperature setting.

Each press of the MAX or MIN button will increase or decrease the
preset temperature by one increment.

The MAX and MIN buttons are located underneath the DIP 1 and
DIP 2 set of DIP switches.

874 series

The increments are 38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 70°C,
and 75°C.

Set the temperature to 75°C on an 874 series water heater if it is
installed as a gas booster to a solar water heater.

7. Switch dip switches 3 and 4 to the off (down) position.

The temperature display will go blank. The preset outlet temperature
setting is now set.

8. Switch off the electrical supply at the power outlet to the water heater.

9. Refit the front panel and screws to the water heater.

DIP1

OFF ON

1

2

3

4

1

2

3

4

O

N

MIN. BUTTON

MAX. BUTTON

ADJUSTER
BUTTON

DIP 1 SET OF
DIP SWITCHES

123

4

OFF ON

DIP1

1234

ON

1234

OFF ON

DIP2

MIN MAX

ADJ

1234

ON

1

2

3

4

O

N

DIP1

OFF O

N

1

2

3

4

COMMISSIONING

71

TO TURN OFF THE WATER HEATER

If it is necessary to turn off the water heater on completion of the installation, such as on a building site or
where the premises are vacant, then:

• Turn off the controllers(s) (if fitted) by pressing the on / off button.

The light in the on / off button will go out and the priority light (standard controller) or the ACTIVE light
(Deluxe controller), if it is on, will go out.

• Switch off the electrical supply at the power outlet to the water heater (refer to note below).

• Close the gas isolation valve at the inlet to the water heater

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

• Drain the water heater if there is a risk of freezing conditions occurring (refer to “Draining The Water

Heater” on page 72).

Note:

The frost protection system will be rendered inoperable if electrical power is not available at the water
heater. Damage caused by freezing due to the unavailability of power at the water heater is not covered by
warranty (refer to “Warranty Exclusions” on page 73). If the power has been switched off to the water heater
and there is a risk of freezing, then it is necessary to drain the water heater (refer to “Draining the Water

Heater” on page 72).

72

DRAINING THE WATER HEATER

To drain the water heater:

• Turn off the water heater (refer to “Turn Off The Water Heater” on page 71).

• Open a hot tap (preferably the shower outlet).

• Unscrew the two drain plugs, one each at the cold water inlet and hot water outlet, on the underside of

the water heater.

Water will drain from the water heater.

• When water stops flowing from the water heater, close the hot tap.

Note: It is recommended not to screw the drain plugs back in, until the water heater is to be turned on again.

WATER SUPPLIES

Your water heater is manufactured to suit the water conditions of most New Zealand Town water supplies.
However, there are some known water supplies that can have detrimental effects on the water heater
Bore/Rain Water and its operation and / or life expectancy. If you are unsure of your water chemistry, you
can obtain information from your local water supply authority.

This water heater is not suitable for connection to bore water or spring water unless a water treatment device
is fitted and the PH is within 6.8-7.6. (Refer to Water Quality Page 73)

73

RHEEM ELECTRONIC CONTINUOUS FLOW GAS WATER HEATER

WARRANTY (NEW ZEALAND ONLY)

WARRANTY CONDITIONS

Notes:

*Rheem New Zealand limited is the supplier of Rheem electronic continuous flow gas water heaters,
manufactured by Paloma industries Ltd, a world leader in water heater technology and manufacture.
**Refer to item 4 of warranty conditions.
Rheem New Zealand reserves the right to transfer fully functional components from the defective
water heater to the replacement water heater if required.

WATER QUALITY

Your water heater is manufactured to suit the water conditions of most New Zealand metropolitan water
supplies. However, there are some known water supplies that can have detrimental effects on the water
heater and its operation and / or life expectancy. If you are unsure of your water chemistry, you can obtain
information from your local water supply authority plumber or merchant.

This water heater is not suitable for connection to bore, spring or rain water unless a water treatment device
is fitted to buffer PH levels to between 6.8-7.6.

Components Installation Model Period Warranty

All components

Water heater installed in

any other than a single

family domestic dwelling

All models Year 1

New water heater (at Rheem’s discretion) or

component free of charge ** including

labour

All components

except heat

exchanger

Water heater installed in a

single family domestic

dwelling

All models

Year 1 to Year 3

New water heater (at Rheem’s discretion) or

component free of charge ** including

labour

Heat exchanger

Water heater installed in a

single family domestic

dwelling

All models

Year 2 to 10

10 Year Pro rata

10 year Pro Rate (i.e. in the 3

r

d

year 80% of

the heat exchanger and labour is covered,

and in the 8th year 20% of the part is

covered and labour is at the owners

expense).

1. This warranty is applicable only to water heaters

manufactured from 1st January 2001.

1. The water heater must be installed in accordance with the

Rheem water heater installation instructions, supplied with
the water heater, and in accordance with all relevant statutory
and local requirements in which the water heater is installed.

2. Where a failed component or water heater is replaced under

warranty, the balance of the original warranty period will
remain effective. The replaced part or water heater does not
carry a new warranty.

3. Where the water heater is installed outside the boundaries of

a metropolitan area as defined by Rheem or further than
25 km from a regional Rheem branch office, or an Accredited
Service Centre, the cost of transport, insurance and travelling
costs between the nearest Rheem accredited Service

Centre’s premises and the installed site shall be the owner’s
responsibility.

4. Where the water heater is installed in a position that does not
allow safe, ready access, the cost of accessing the site
safely, including the cost of additional materials handling
and / or safety equipment, shall be the owner’s responsibility.

5. The warranty only applies to the water heater and original or
genuine (company) component replacement parts and
therefore does not cover any plumbing or electrical parts
supplied by the installer and not an integral part of the water
heater, e.g. pressure limiting valve; isolation valves; non­return valves; electrical switches; pumps or fuse.

6. The water heater must be sized to supply the hot water
demand in accordance with the guidelines in the Rheem
water heater literature.

Revision Date: 4th March 2010 317658B

74

WARRANTY EXCLUSIONS

1. REPAIR AND REPLACEMENT WORK WILL BE CARRIED OUT AS SET OUT IN THE RHEEM WATER HEATER WARRANTY,
HOWEVER THE FOLLOWING EXCLUSIONS MAY CAUSE THE WATER HEATER WARRANTY TO BECOME VOID AND MAY
INCUR A SERVICE CHARGE AND / OR COST OF PARTS.

a) Accidental damage to the water heater or any component,

including: Acts of God; failure due to misuse; incorrect
installation; attempts to repair the water heater other than by
a Rheem Accredited Service Centre or the Rheem Service
Department.

b) Where it is found there is nothing wrong with the water

heater; where the complaint is related to excessive discharge
from the temperature and / or pressure relief valve due to
high water pressure; where there is no flow of hot water due
to faulty plumbing; where water leaks are related to plumbing
and not the water heater or water heater components; where
there is a failure of gas, electricity or water supplies; where
the supply of gas, electricity or water does not comply with
relevant codes or acts.

c) Where the water heater or water heater component has failed

directly or indirectly as a result of: excessive water pressure;
excessive temperature and / or thermal input; corrosive
atmosphere; ice formation in the pipe work to or from the
water heater; ice formation in the waterways of a water
heater without a frost protection system; ice formation in the

water heater with a frost protection system where the
waterways of a electricity supply has been switched off or has
failed and the water heater has not been drained in
accordance with the instructions; ice formation in the
waterways of a water heater with a frost protection system
due to an ambient temperature below -20°C (including wind
chill factor); ice formation in the water ways of a water heater
where the water heater has not been installed in accordance
with the Rheem water heater installation instructions.

d) Where the water heater is located in a position that does not

comply with the Rheem water heater installation instructions
or relevant statutory requirements, causing the need for
major dismantling or removal of cupboards, doors or walls, or
use of special equipment to bring the water heater to floor or
ground level or to a serviceable position.

e) Repair and / or replacement of the water heater due to scale

formation in the waterways or the effects of corrosive water
when the water heater has been connected to a scaling or
corrosive water supply as outlined in the Owner’s Guide and
Installation Instructions booklet.

2. SUBJECT TO ANY STATUTORY PROVISIONS TO THE CONTRARY, THIS WARRANTY EXCLUDES ANY AND ALL CLAIMS
FOR DAMAGE TO FURNITURE, CARPETS, 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.

Rheem New Zealand Ltd For service telepho ne

0800 657 335