Rheem Eco 703 Series Technical Document

Owners Guide
and
Installation Instructions
Electric
Boiling Water Unit
Models 3, 5, 7.5, 10, 15, 25, & 40 Litre
This Boiling Water Unit must be installed and serviced by a qualified person. Please leave this
guide with the owner .
Commercial
702 Series
Office
701 Series
Eco
703 Series

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Australia Only
Notice to Victorian Customers from the
Victorian Plumbing Industry Commission.
This Boiling Water Unit must be installed by a licensed person as required by the Victorian
Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that the work complies
with all the relevant standards. Only a licensed person will have insurance protecting their
workmanship for 6 years. Make sure you use a licensed person to install this unit and ask for
your Compliance Certificate.

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CONTENTS
ABOUT YOUR BOILING WATER UNIT .............................................................4
INTRODUCTION .................................................................................................4
SETTING THE TIMER FUNCTIONS 701 & 702 SERIES....................................7
A) SETTING THE CLOCK...........................................................................8
B) SET TIMER TO STD/AUTO MODE........................................................8
C) PROGRAMMING ‘SET ON/OFF TIMES’................................................9
D) PROGRAMMING ‘SLEEP DELAY TIMER’...........................................10
E) SELECTING ‘FILTER LIFE’ FUNCTIONS ............................................10
F) ACCESSING ‘SERVICE MENU’ ...........................................................11
ERROR CODES................................................................................................11
SETTING ECO MODE (703 SERIES) ...............................................................15
SAVE A SERVICE CALL ..................................................................................18
INSTALLATION.................................................................................................19
LOCATION ........................................................................................................19
WATER SUPPLY CONNECTION......................................................................20
OVERFLOW / VENT CONNECTION IMPORTANCE........................................20
ELECTRICAL REQUIREMENTS.......................................................................23
COMMISSIONING.............................................................................................24
FAULT FINDING GUIDE...................................................................................25
SPECIFICATIONS.............................................................................................26
MOUNTING DIMENSIONS................................................................................27
WALL PLATE DIMENSIONS 701 SERIES 3 & 5 LITRE MODELS..................28
DIMENSIONS 701 SERIES............................................................................. 29
702 SERIES .............................................................................30
703 SERIES .............................................................................31
RHEEM WARRANTY........................................................................................34

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ABOUT YOUR BOILINGWATER UNIT
INTRODUCTION
Thank you for choosing our Rheem Boiling Water Unit. Please take a few minutes to
read this booklet because it contains important information about the correct
installation and operation of your Rheem Boiling Water Unit. The Rheem Boiling
Water Unit supplies boiling water. It is made from high quality copper and is
designed to be installed indoors and away from any areas where a water jet could be
used. The Rheem Boiling Water Unit is supplied with all the required safety controls
for installation (not including the isolation valve prior to the Boiling Water Unit).
WARNING:
This boiling water unit is only intended to be operated by persons who have the
experience or the knowledge and the capabilities to do so. This boiling water
unit 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 boiling water unit.
Do not use this appliance for anything other than its intended use, to avoid
potential injury.
This Boiling Water Unit uses 230-240 V AC electrical power for operation of the
control systems and the electrically operated components. The removal of the
access cover(s) will expose 230-240 V AC wiring. The access cover(s) must
only be removed by a qualified person.
This appliance is intended to be used in household and similar applications such as:
Staff kitchen areas, office and other working environments;
Farm houses;
By clients in hotel, motel and other residential type environments;
Bed and breakfast type environments.
SAFETY
This Boiling Water Unit is supplied with an over temperature cut-out to prevent
element burn out in the event of control failure. If the electrical supply cord to the
Boiling Water Unit is damaged, it must be replaced by a qualified competent person
in order to avoid becoming a hazard. In Australia phone Rheem Service on 131 031,
in New Zealand phone your nearest Rheem Service Centre on 0800 657 335 for an
inspection. For extra electrical protection against power surges and spikes it is
recommended that the user install a surge protector prior to the Boiling Water Unit.
WARNING:
The Rheem warranty may not cover faults if any of the installed safety devices
are tampered with.

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TO TURN OFF THE BOILING WATER UNIT
The 701 & 702 series Boiling Water Units are supplied with a programmable timer
(see page 7), the 703 series Boiling Water Units have an Eco mode (see page 15)
Rheem recommend the timer or Eco mode be used to conserve energy.
If it is necessary to turn off the Boiling Water Unit:
• Switch off the electrical supply at the isolating switch to the Boiling Water Unit.
• Close the cold water isolation valve at the inlet to the Boiling Water Unit.
TO TURN ON THE BOILING WATER UNIT
•Open the cold water isolation valve fully on the cold water line to the Boiling Water
Unit.
• Switch on the electrical supply at the isolating switch to the Boiling Water Unit.
Note: The Boiling Water Unit may not appear to turn on immediately when it is first
switched on as the electronic controller will automatically check the system
prior to allowing water into the Boiling Water Unit (this could be up to 10
seconds).
On initial start up after installation, this Boiling Water Unit automatically runs through
a set-up cycle to detect the boiling point of water. During this cycle steam may
discharge from the vent pipe for a short time. This set-up cycle will take up to 18-30
minutes depending on unit, and when completed (boiling point detected) the unit will
commence incremental filling. It is important NOT to operate the tap during the set-
up cycle because it may affect the operating temperature of the unit.
IS THIS BOILING WATER UNIT INSTALLED CORRECTLY?
Installation requirements are shown under Installation (on page 19).
The Boiling Water Unit must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local
codes and regulatory authority requirements.
In New Zealand, the installation must also conform to Clause G12 of the New Zealand Building Code
DOES THE WATER QUALITY AFFECT THE BOILING WATER UNIT?
The Boiling Water Unit is suitable for most public water supplies, however some
water qualities may have detrimental effects on the Boiling Water Unit, its
components and fittings. If you are in a known harsh water area you must first read
Water Supplies (on page 17). If you are not sure, have your water quality checked
against the conditions described on page 17.

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HOW LONG WILL THE BOILING WATER UNIT LAST?
There are a number of factors that will affect the length of service the Boiling Water
Unit will provide. These include but are not limited to the water quality, the water
usage pattern etc. Refer to “Precautions” below, however your Boiling Water Unit is
supported by a comprehensive Rheem warranty (refer “Rheem Warranty” on page
34).
PRECAUTIONS
The Boiling Water Unit must be maintained in accordance with the Owner’s Guide
and Installation Instructions.
If this Boiling Water Unit is to be used where an uninterrupted boiling water supply is
necessary for your application or business you should ensure that you have back up
redundancy within the building. This should ensure the continuity of boiling water
supply in the event that this Boiling Water Unit were to become inoperable for any
reason. We recommend you seek advice from your plumber or specifier about your
needs and building back up redundancy.
HOW YOUR BOILING WATER UNIT WORKS
The Boiling Water Unit is designed to operate using mains cold water pressure by
connecting directly to the mains water supply. If the mains supply pressure in your
area exceeds 1000kPa a secondary pressure limiting valve must be fitted.
The supply pressure should be greater than 50 kPa (3-10L), 75kPa (15-25L) or
100kPa (40L) for the Rheem Boiling Water Unit to operate to its optimum
performance.
BOILING WATER
The Rheem Boiling Water Unit is electronically controlled to obtain the maximum
performance, and incorporates further safety devices to prevent over temperature
and over filling.
ELECTRONIC CONTROLLER & TIMER (701 and 702 Series)
Your Rheem Boiling Water Unit incorporates smart heating software and an
electronic timer to obtain the best efficiency for the energy used. The electronic timer
allows the user to program when the unit is on or off and when the sleep mode
activates to save energy. Also the operator has the availability to indicate and
diagnose any system faults that occur without the need to unnecessarily call for a
service technician. (Refer “Setting the Timer” on page 7)
ECO MODE (703 Series)
The 703 Series also incorporates smart heating software and an electronic Eco
mode to obtain the best efficiency for the energy used. The Eco mode allows the
user to activate a ‘sleep delay mode’ to save energy after 2 hours of inactivity.

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SETTING THE TIMER 701 & 702 SERIES
TIMER FUNCTIONS
701 & 702 Series have 24 hour timers fitted. For 703 series go to page 15.
Function
Mode
Description
Clock
N/A
Set clock time.
STD/AUTO
STD
Boiling Water Unit ‘ON’ 24 hours 7 days.
AUTO
Boiling Water Unit operates according to
programmed ‘Set ON/OFF Times’.
Set ON/OFF
Times
N/A
Program ON/OFF times for AUTO mode.
Sleep Delay Time
N/A
Program delay-off time from last usage
(operates in AUTO mode only).
Filter Life*
Remaining Life
Displays remaining filter life in litres.
Filter Reset
Resets filter ‘Remaining Life’ to ‘Set Filter Life’
setting. Utilised when replacing filter.
Set Filter Life
Program filter life start value in litres.
Service Menu
Error Codes
Displays alpha error codes (refer to page 11 for
error codes and their meanings).
Boiling Temp
Displays the current boiling water temperature in
ºC.
Calib. Reset
Reactivates automatic boiling point calibration
operation.
Temp Override
Manually select calibrated temp setting.
Selectable from 70 –99°C.
Software Version
Displays Timer and Controller software versions
(top = Timer, lower = Controller).
Temp Show
ON/OFF
Enable/disable boiling water temperature display
on timer screen (in °C).
TB Treq
Displays boiling water temperatures in °C. (TB =
calibrated temp, Treq = maintained temp).
* Lazer Boiling Water Units do not have a water filter fitted. However filter life
functions for 701 and 702 Series can be utilised if the water supply to the Boiling
Water Unit has an external water filter fitted. You can install an optional Rheem
remote filter kit (PN 317327), which is recommended for areas with poor water
quality.
To select a Timer Mode
Press the (P) button until the desired mode is displayed on the screen. Press the (✓)
button to confirm selection. Pressing (X) button at any time returns the unit to the
main menu. Any functions previously accepted will be retained.
Note: The display will revert back to main menu from any mode if a button has not
been pressed for 1 minute.

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A) Setting the Clock
1. Press and release the (P) button, ‘Clock’ is displayed flashing on the screen.
2. Press and release the (✓) button to confirm selection. ‘Set Clock Day’ will be
displayed on the screen with the day selection shown flashing.
3. Press and release the (▲) button until the desired day is selected.
4. Press and release the (✓) button to confirm selection. ‘Set Clock HOUR’ will
be displayed on the screen with the hours section of the time shown flashing.
5. Press and release the (▲) button until the desired hour (24 hour time)
appears flashing on the screen.
6. Press and release the (✓) button to confirm selection. ‘Set Clock MIN’ will be
displayed on the screen with the minutes section of the time shown flashing.
7. Press and release the (▲) button until the desired minute appears flashing on
the screen.
8. Press and release the (✓) button to confirm selection. The display will revert
to the main menu and the time setting will be saved.
B) Set Timer to STD/AUTO Mode
1. Press and release the (P) button until ‘Timer STD/AUTO’ is displayed flashing
on the screen.
2. Press and release the (✓) button to confirm selection. ‘STD’ will be displayed
flashing on the screen.
3. Pressing and releasing the (▲) button alternates between the ‘STD’ and
‘AUTO’ icons.
4. Press and release the (✓) button when the ‘STD’ or ‘AUTO’ icon is shown on
the display. The display will revert to the main menu. If ‘STD’ is selected the
unit will operate 24 hours a day. If ‘AUTO’ is selected the unit will operate
according to the pre set times on the timer (refer to ‘Programming Set ON/
OFF Times’ below).
Note: If the timer is in AUTO mode and is in an ‘OFF’ period, the pressing of any
timer buttons will reactivate the unit. The unit will then operate normally until
the next programmed ‘OFF’ time.

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C) Programming ‘Set ON/OFF Times’ (For Use in ‘AUTO’ Mode)
Note: A highlighted numeral i.e. 7:00 indicates that the highlighted numeral 7 is
flashing on the display. X:XX is your time setting.
1. Press and release the (P) button until ‘Set ON/OFF Time’ is displayed flashing
on the screen.
2. Press and release the (✓) button to confirm selection. ‘SUN 7:00 –7:00
Set ON hour’ will be displayed on the screen.
3. Press and release the (▲) button until the desired hour appears flashing on
the screen.
4. Press and release the (✓) button to confirm selection. ‘SUN X:XX –X:XX
Set ON minute’ will be displayed on the screen.
5. Press and release the (▲) button until the desired minutes appear flashing on
the screen.
6. Press and release the (✓) button to confirm selection. SUN X:XX –X:XX
Set OFF hour’ will be displayed on the screen.
7. Press and release the (▲) button until the desired hour appears flashing on
the screen.
8. Press and release the (✓) button to confirm selection. ‘SUN X:XX –X:XX
Set OFF Minute’ will be displayed on the screen.
9. Press and release the (▲) button until the desired minutes appear flashing on
the screen.
10.Press and release the (✓) button to confirm selection. MON 7:00 –17:30
Set ON hour’ will be displayed on the screen.
11.Continue steps 3 –8 for Monday through to Saturday. When step 8 is
completed for Saturday the display will automatically revert to the main menu
and the program will be saved.
Note: To program the unit to be in ‘OFF’ mode for an entire day, set the ‘ON’ and
‘OFF’ times to be the same i.e. ON = 0:00 OFF = 0:00.
D) Programming ‘Sleep Delay Time’
1. Press and release the (P) button until ‘Sleep Delay Time’ is displayed flashing
on the screen.
2. Press and release the (✓) button to confirm selection. ‘Sleep Delay Time OFF’
will be displayed on the screen with ‘OFF’ flashing.
3. Press and release the (▲) button until the desired time setting appears
flashing on the screen. Each consecutive push and release of the (▲) button
increases the time setting in one hour increments up to a maximum of 6
hours. If the (▲) button is pressed and released after ‘6’ is reached ‘OFF’ will
be displayed and if accepted, the sleep delay timer will be turned off.
4. When the desired setting is reached press and release the (✓) button to
confirm selection. The display will revert to the main menu and the setting will
be saved.

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D) Programming ‘Sleep Delay Timer’ Continued
Note: The sleep function puts the unit in a standby mode after a user defined period
(1 –6 hours). The unit will enter ‘Sleep’ mode if it has not been used for the
programmed ‘Sleep Delay Time’ period. During ‘Sleep’ mode the unit will
maintain the boiling water temperature at 0ºC instead of the normal Treq
(Temperature required) approximately 97ºC. To exit ‘Sleep’ mode, press any
timer button to reactivate the unit. The unit will then operate normally.
E) Selecting ‘Filter Life’ Functions
The Filter Life function has three modes to select from, ‘Remaining Life’, ‘Filter
Reset’ and ‘Set Filter Life’. The Filter Life is factory set to OFF as the default setting.
These modes are accessed as follows:
Accessing ‘Remaining Life’
1. Press and release the (P) button until ‘Filter Life’ is displayed flashing on the
screen. Note: if ‘Remaining Life –COUNT IS OFF’ is displayed on the screen
proceed directly to step 3 otherwise proceed to step 2.
2. Press and release the (✓) button to confirm selection. ‘Remaining Life XXXX
Litres’ will be displayed on the screen where XXXX is the value of remaining
filter life in litres.
3. Press and release the (X) or (✓) button to revert back to the main menu.
Activating ‘Filter Reset’ & ‘Set Filter Life’
1. Press and release the (P) button until ‘Filter Life’ is displayed on the screen.
Note: if ‘Remaining Life – COUNT IS OFF’ is displayed on the screen proceed
directly to step 3 otherwise proceed to step 2.
2. Press and release the (✓) button to confirm selection. ‘Remaining Life XXXX
Litres’ will be displayed on the screen.
3. Press and release the (▲) button. ‘Filter Reset’ is displayed on the screen.
4. Press and release the (✓) button to confirm selection. ‘Are You Sure’ will be
displayed flashing on the screen.
5. Press and release the (✓) button to confirm selection. ‘Set Filter Life YYYY
Litres’ is displayed on the screen (with ‘YYYY Litres’ flashing) where YYYY is
the previous preset value in litres. Note: ‘OFF’ may be displayed flashing on
the screen if the previous value was set to OFF.
6. Press and release the (▲) button until the desired setting appears flashing on
the screen. Each consecutive push and release of the (▲) button increases
the capacity setting in 1,000 litre increments from a start value of 1,000 litres
up to a maximum setting of 14,000 followed by OFF.
7. Press and release the (✓) button to confirm selection. The display will revert
to the main menu and the setting will be saved.

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F) Accessing ‘Service menu’
The service menu has seven modes to select from (refer to ‘Timer Functions’ on
page 7). This function allows easy identification of problems occurring with the unit
by the service technicians (see details on the table below for Product error codes).
Each mode is accessed as follows:
Select Appropriate Service Mode
i Error Codes
ii Boiling Temp
iii Calib Reset
iv Temp. Override
v Software Version
vi Temp Show ON/OFF
vii TB Treq
Product Error Codes
i) Accessing Error Codes
1. Press and release the (P) button until ‘Service’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen.
3. Press and release the (X) or (✓) button to revert back to the main menu.
Note: An error code will be automatically cleared from the display when the fault
relating to that error code is rectified and the Boiling Water Unit is re-
powered. Refer to the error code table below for error codes and their
meaning.
Error Code Table
ERROR
CODE
ERROR
CODE
Hot Thermistor Fault O/C- S/C
A*
High Level Probe Fault
J
Heating Triac S/C –Uncontrolled
Temperature Rise
C*
Water Heating Fault –
Element Not Heating
L
Expired Filter
E
Software Reboot
M
Calibration Time Out
G
Rapid Temperature Rise –
Empty Tank
N
Low Level Probe Fault
H

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Notes: Error Code Table
Fault codes without an asterisk (*) are informational only and the Boiling Water Unit
will continue to operate however the affected section may not function.
Fault codes with an asterisk (*) displayed are critical faults. If detected, the Boiling
Water Unit unit will shut down and control board relay will de-energise. In Australia
phone Rheem service on 131 031, in New Zealand call a Rheem Service Centre
0800 657 335 for a service call.
ii) Accessing Boiling Temp
Press and release the (P) button until ‘Service’ is displayed on the screen.
1. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below.
2. Press and release the (▲) button until ‘Boiling Temp XX ºC’ is displayed on
the screen where XX is the current boiling water temperature in ºC.
3. Press and release the (X) or (✓) button to revert back to the main menu.
iii) Activating Calibration Reset Mode
Different altitudes will cause water to boil at different temperatures. To prevent the
water in the boiling water tank from boiling continuously (which is not energy
efficient) the Boiling Water Unit is fitted with an altitude calibration function which
automatically operates when the unit is operated for the first time or if ‘calibration
reset mode’ is activated. If the boiling water delivery temperature is not hot enough
or the unit continuously boils, ’calibration reset mode’ should be activated to
recalibrate the unit.
When the unit is calibrating, the Boiling Water Unit will boil the water twice
(approximately 60 seconds each time) in order to calibrate the optimum boiling point
according to altitude. During this procedure steam and water droplets will be vented
from the vent outlet. During the calibration period the unit may create higher than
expected noise levels. The entire calibration period will take approximately 18 –
30 minutes and must not be interrupted; this includes operation of the tap
outlet.
1. Press and release the (P) button until ‘Service’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below.
3. Press and release the (▲) button until ‘Calib. Reset’ is displayed on the
screen.
4. Press and release the (✓) button to confirm selection. ‘Are You Sure’ will be
displayed on the screen.

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iii) Activating Calibration Reset Mode Continued,
5. Press and release the (✓) button to activate calibration mode. ‘Error Codes’
will be displayed on the screen with any error codes listed below.
6. Press and release the (✓) button to revert back to the main menu ‘Calibrating
Do Not Interrupt’ will be displayed on the timer screen and the unit will
recalibrate the boiling water temperature. When calibration is complete the
timer display will automatically revert back to the main menu.
iv) Activating Temp Override
Temperature override allows the installer to set the calibrated temperature to perform
a fast calibration when the unit is operated for the first time, or to change the boiling
water temperature to a selectable value from 70°C –99°C.
1. Press and release the (P) button until ‘Service’ is displayed flashing on the
screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below
3. Press and release the (▲) button until ‘Temp override’ is displayed on the
screen.
4. Press and release the(✓) button to confirm selection. The current calibrated
(or preset) boiling water temperature will be displayed flashing on the screen.
5. Press and release the (Up) button until the desired setting appears flashing on
the screen. Each consecutive press and release of the (Up) button increases
the boiling water temperature setting in 1° increments from 70°C to a
maximum of 99°C.
6. Press and release the (✓) button. ‘Are You Sure’ will be displayed flashing on
the screen.
7. Press and release the (✓) button to confirm selection after which time the
timer screen will revert back to the main menu, ‘Calibrating Do Not Interrupt’
will be displayed on the timer screen and the unit will recalibrate the boiling
water temperature to the new selected temperature. When calibration is
complete the timer display will automatically revert back to the main menu.
v) Accessing Software Version
1. Press and release the (P) button until ‘Service’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below.
3. Press and release the (▲) button until ‘Software Version’ is displayed on the
screen.
4. Press and release the (✓) button to confirm selection. The software version
will be displayed on the screen. The top digits refer to the timer software
version and the lower digits refer to the controller software version.
5. Press and release the (X) or (✓) button to revert back to the service menu.
‘Error Codes’ will be displayed on the screen.
6. Press and release the (X) or (✓) button to revert back to the main menu.

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vi) Permanently Display the Boiling Water Temperature
(Temp Show ON/OFF)
This function allows the temperature of the water within the Boiling Water Unit to
be permanently displayed on the timer display screen.
1. Press and release the (P) button until ‘Service’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below.
3. Press and release the (▲) button until ‘TempShow ON/OFF’ is displayed on
the screen.
4. Press and release the (✓) button to confirm selection. The current setting,
‘ON’ or ‘OFF’ will be displayed flashing on the screen.
5. Press and release the (▲) button to cycle between ON and OFF.
6. Press and release the (✓) button to confirm selection. The display will revert
to the service menu. ‘Error Codes’ will be displayed on the screen.
7. Press and release the (X) or (✓) button to revert back to the main menu.
vii) Accessing Calibrated & Required Temperature (TB Treq) Information
This function allows the user to see what Temperature the unit calibrated to, and
the subsequent required temperature the unit is required to be maintained at.
1. Press and release the (P) button until ‘Service’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Error Codes’ will be
displayed on the screen with any error codes listed below.
3. Press and release the (▲) button until ‘TB Treq’ is displayed on the screen.
Under the letters ‘TB’ the boiling water calibration temperature will be
displayed in ºC. Under the letters ‘Treq’ the temperature the unit will maintain
the water at will be displayed in ºC.
4. Press and release the (X) or (✓) button to revert back to the main menu.
Keypad Lock
This function is for extra security to prevent tampering with the unit settings. Default
setting is disabled.
To activate keypad lock
1. Press and release the (P) button until ‘Keylock’ is displayed on the screen.
2. Press and release the (✓) button to confirm selection. ‘Key lock enable’ will
be displayed on the screen.
3. Press and release the (✓) button to confirm selection. ‘Keypad Locked’ will be
displayed on the screen when any button is pressed.
To deactivate keypad lock
Press (P) and (▲)buttons simultaneously for a period of approximately 10 seconds
until ‘Keypad Locked’ disappears from the screen and display returns to normal.

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SETTING ECO MODE (703 SERIES)
Timer Functions for 703 Series Eco mode
The 703 Series Boiling Water Units are supplied with an energy saving Eco mode.
Eco mode is a ‘Sleep Delay Mode’ which when
activated will automatically shut the system down
after a set period of time with no use (2 hours).
To activate Eco mode, press and release the ‘ECO’ button. When the ‘ECO’ button is
released the green ‘ECO’LED will illuminate to indicate the unit is in sleep delay
mode. Power will still be on to maintain set temperature until 2 hours with no use has
lapsed. After 2 hours with no use (from last inlet solenoid valve operation) the unit will
go to sleep at which time ‘Treq’ (Treq - temperature required) becomes 0°C (normally
97°C). When the unit is in sleep mode the red ‘ECO’LED from ‘PRESS ECO TO
HEAT’ text will illuminate.
To ‘wake up’ the unit during ‘Sleep Delay Mode’, press and release the ‘ECO’ button
whilst the red ‘ECO’LED from ‘PRESS ECO TO HEAT’is illuminated. When the
‘ECO’ button is released the red and green ‘ECO’LED lights will be extinguished,
sleep mode will be deactivated and operation will return to normal, heating the water
to the calibrated value, approximately 97°C.
To deactivate Eco mode, press the ‘ECO’button whilst the green ‘ECO’LED light is
illuminated. When the ‘ECO’ button is released, the green ‘ECO’LED will be
extinguished and Eco mode is deactivated.
Note: Heating will continue as normal whilst in sleep delay mode until the 2 hour
period of no use time elapses. The ‘ECO’ button does not need to be pushed
for heating unless the red ‘ECO’LED from ‘PRESS ECO TO HEAT’text is
illuminated.

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Activating Calibration Reset Mode: - 703 Series
Different altitudes will cause water to boil at different temperatures. To prevent the
water in the boiling water tank from boiling continuously (which is not energy
efficient) the Boiling Water Unit is fitted with an altitude calibration function which
automatically operates when the unit is operated for the first time or if ‘calibration
reset mode’ is activated. If the boiling water delivery temperature is not hot enough
or the unit continuously boils, ‘calibration reset mode’ should be used to recalibrate
the unit.
When the unit is calibrating, the Boiling Water Unit will boil the water twice
(approximately 60 seconds each time) in order to calibrate the optimum boiling point
according to altitude. During this procedure steam and water droplets will be vented
from the vent outlet on the tap. The entire calibration period will take
approximately 18-25 minutes and must not be interrupted, this includes
operation of the tap outlet.
To activate calibration reset mode, turn off the power to the unit. Press and hold the
‘ECO’ button and restore the power to the unit. Once the red ‘HEATING’LED is
flashing, release the ‘ECO’button. When the unit has completed its calibration cycle,
the red ‘HEATING’LED will illuminate solidly.
Eco Mode LED Indication
The Eco mode display has integral LED’s which indicate system status as follows:
LED
LED Status
Description
‘HEATING’ text
On red flashing
Calibration cycle in progress
‘HEATING’ text
On red solid
Heating in progress
‘READY’ text
On green solid
Boiling water ready
‘ECO’Green LED
On green solid
Sleep delay mode activated
Off
Sleep mode deactivated
‘ECO’Red LED illuminates
‘PRESS ECO TO HEAT’
On red solid
Unit is asleep
‘READY’ LED glows
solid green when
water is ready to use
‘ECO’ Button
‘ECO’ LED glows solid
green when sleep
mode is activated
‘HEATING’ LED glows
solid red whilst water is
heating, and flashes
red whilst calibrating
‘ECO’ LED glows
solid red when unit is
asleep.

17
Operating the Boiling Water Unit Tap
The 702 and 703 Series have a push - pull tap assembly. Water flows from the tap
directly below the lever when the lever is operated.
The 702 and 703 Series may be fitted with an optional safety tap, with a release
button in the centre of the tap lever. These are a pull tap assembly which requires a
three-step action to control dispensing. Water flows from the tap directly below the
lever when the lever is operated. See specifications on page 26 for part numbers.
The 701 Series has a push - pull lever located in the front panel of the unit. When
operated, boiling water flows from the spout on the underside of the unit.
Water Supplies
Your Boiling Water Unit is manufactured to suit the water conditions of most
Australian and New Zealand metropolitan water supplies. However, there are some
known water supplies which can have detrimental effects on the Boiling Water Unit
and its operation and/or life expectancy. If you are unsure of your water quality, you
can obtain information from your local water supply authority. This Boiling Water Unit
should only be connected to a water supply which complies with these guidelines for
the Rheem warranty to apply.
Chloride and PH
In a high chloride water supply, the water can corrode copper or stainless steel parts
and cause them to fail. Where the chloride level exceeds 250 mg/L the Rheem
warranty does not apply to the Boiling Water Unit. The pH is used as a measure of
the water’s alkalinity and acidity. In an acidic water supply, the water can attack
metal parts and cause them to fail. Where the pH is less than 6.5 or greater then 7.5,
the Rheem warranty does not apply to the Boiling Water Unit.
Saturation Index
The saturation index is used as a measure of the water’s corrosive or scaling
properties. In a corrosive water supply, the water can attack copper parts and cause
them to fail. Where the saturation index is less than –1.0, the water is corrosive and
the Rheem warranty does not apply. In a scaling water supply, calcium carbonate is
deposited out of the water onto any hot metallic surface. Where the saturation index
exceeds +0.80, the Rheem warranty does not apply to the inner tank unless a water
softening device is installed.
WARNING
Boiling Water Units not installed in accordance with the above advice will not be
covered by the Rheem warranty.

18
SAVE A SERVICE CALL
Check the items below before making a service call. You will be charged for
attending to any condition or fault that is not related to manufacture or failure of a
part.
Not Enough (Or No) Boiling Water
• Is the electricity switched on?
Inspect the wall power socket to see if it is switched on. Also check the fuse or circuit
breaker at the switchboard to see if it is blown or tripped.
• Is the timer or Eco mode in the off / sleep period?
Check if the timer or Eco mode has been set to turn off, if so the unit could be below
the optimum delivery temperature.
Water Not Hot Enough?
Heavy usage
You may find that due to heavy boiling water usage the water temperature may be
lower than normally expected due to insufficient heating time being allowed.
High altitude
The Boiling Water Unit is fitted with automatic altitude calibration to prevent the water
from continually boiling, which is not energy efficient. Different altitudes will cause
the unit to boil at different temperatures. If you believe the water temperature is not
hot enough, recalibrate the unit (701 & 702 Series see page 12, 703 series owners
see page 16).
High Electricity Bills
Should you at any time, feel your electricity account is too high, we suggest you
check the following points: 701 & 702 Series are supplied with a programmable timer
and sleep mode. Check to see if these features have been activated. Refer to
‘Setting the Timer’701 & 702 Series on page 7. 703 series have a sleep delay mode,
to activate see page 15.
Unit Will Not Switch Off
The electronic timer on 701 and 702 Series will only switch the unit on or off when it
is in “Auto” mode (See section B on page 8) or sleep mode (Eco mode on 703
Series, see page 15) is activated, otherwise the unit will operate 24 hours a day 7
days a week.
No Water Coming Out Of The Tap
There may have been a large draw off prior. Wait a minute for the unit to fill enough
for you to get water out. If water will still not come out of the tap check the display, if
there is an error message contact Rheem service. In Australia phone 131 031, in
New Zealand phone Rheem Service Centre on 0800 657 335 to resolve any
problems with the unit.

19
INSTALLATION
LOCATION
This Boiling Water Unit is suitable for indoor installation only.
INSTALLATION STANDARDS
The Boiling Water Unit must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local codes
and regulatory authority requirements.
In New Zealand, the installation must also conform to Clause G12 of the New
Zealand Building Code.
BOILING WATER UNIT APPLICATION
If this Boiling Water Unit is to be used where an uninterrupted boiling water supply is
necessary for the application or business, then there should be redundancy within
the building. This should ensure the continuity of boiling water supply in the event
that this Boiling Water Unit was to become inoperable for any reason. We
recommend you provide advice to the system owner about their needs and the
buildings backup redundancy.
OPENING THE UNIT
The jacket is removed from all models, by undoing the 4 retaining screws at the top
and bottom of the jacket, and pulling the jacket forward. The removal of the jacket
will expose 230-240 V AC wiring. This must only be removed by a qualified person.
MINIMUM CLEARANCES
For ventilation reasons, all units require a minimum clearance of 50mm on all sides,
however it is not recommended to enclose the unit in a cupboard. For ease of
servicing (where there is sufficient space) Rheem recommend 300mm clearance
from the top of all units. For element replacement reasons Rheem recommend
clearance of 150mm from the right hand side of 3 to 10 litre units and 300mm from
the left hand side of the 15 to 40 litre units. Rheem recommend a minimum
clearance of 400mm measured from the underside of the Boiling Water Unit jacket to
any sink bench.
MOUNTING
The Boiling Water Unit when installed is suspended from mounting screws located
into keyhole slots at the back of the Boiling Water Unit (refer to Mounting Dimensions
on page 27). Be sure that the mounting screws are securely inserted into the keyhole
slots. The screws MUST be anchored in such a way, that they will hold the weight of
the unit when filled with water, (refer to the specifications table on page 26).

20
WALL PLATE 3 AND 5 LITRE 701 SERIES
3 & 5 litre 701 Series have a wall plate supplied to allow fixing of the new Boiling
Water Unit utilising the existing fixings. The wall plate has been pre-drilled so that the
holes in the wall plate are located where the original mounting points were for
Rheem Lazer, Zip (Australia) or Zenith (NZ) Boiling Water Units. Once the wall plate
has been secured to the wall, the new Boiling Water Unit is easily mounted on to the
wall plate, by means of two integrated hooks of the wall plate that locate into two
elongated slots in the Boiling Water Unit back panel, marked as dimension H on
page 27. To prevent the Boiling Water Unit lifting off the wall plate, prior to fitting the
Boiling Water Unit to the wall plate, using a 6mm flat blade screwdriver, bend the
locking tab on the Boiling Water Unit back panel outward approximately 8mm. See
page 28 for wall plate dimensions.
WARNING
WATER SUPPLY CONNECTION
Cold mains pressure water (refer to Specifications on page 26) for minimum water
pressures) must be piped and connected to the ½” BSP inlet fitting located on the left
hand side underneath the unit. An accessible isolating valve must be installed near
the unit. This unit contains an inlet strainer on the water inlet connection (refer to
figure 1 below). For rear entry connection on 3-10 litre models, we recommend that
you use prefabricate pipework for ease of connection.
VENT AND INLET CONNECTION
Before drilling into the wall make sure that the screw positions avoid any pipe-work
or electrical cables. Allow 4 mm clearance between the screw head and the wall
for locating the unit.
Figure 1: Inlet Connection Figure 2: Overflow / Vent Connection
All Models