Rinnai HD32e User manual

Gas Continuous Flow Water Heater
Operation & Installation Manual
MODELS
Infinity 32 (REU-AM3237W)
HD32e (REU-AM3237WC)
Infinity 26 Touch (REU-AM2626WDL)
Infinity 26 (REU-AM2626WD)
Infinity 20 (REU-AM2024WD)
Infinity 16 (REU-AM1620WD)
Infinity 12 (REU-AM1220WD)
Infinity Enviro 26 (REU-E2626W)
Infinity Enviro 16 (REU-E1620W)
Infinity 28i (REU-VCM2837FF)
HD28i (REU-VCM2837FFC)
HD28e (REU-VCM2837WC)
B26 (REU-A2626WB)
B20 (REU-A2024WB)
B16 (REU-A1620WB)

Rinnai 2 HW_CF OIM
Congratulations on the purchase of your Rinnai Gas Continuous Flow Water Heater. We trust you will have many
years of comfort and enjoyment from your appliance.
IMPORTANT
BEFORE USING THIS APPLIANCE
Before proceeding with the operation or installation read this manual thoroughly and gain a full
understanding of the appliance, to ensure safe and correct use.
This appliance must be installed in accordance with:
• Manufacturer’s Installation Instructions
• Current AS/NZS 3000, AS/NZS 3500 & AS/NZS 5601
• Plumbing Code of Australia (PCA)
• Local Regulations and Municipal Building Codes
including local OH&S requirements
This appliance must be installed, maintained and removed
by an Authorised Person.
For continued safety of this appliance it must be installed
and maintained in accordance with the manufacturer’s
instructions.
All Rinnai gas products
sold in Australia are
A.G.A. certified.

Rinnai 3 HW_CF OIM
OPERATION TABLE OF CONTENTS
Warnings & Important Information 4
Before Using This Appliance .............................................................................................................................................. 4
Regulatory Information ....................................................................................................................................................... 4
Notice to Victorian Consumers .......................................................................................................................................... 4
Warning About Hot Water ................................................................................................................................................... 4
Operational Safety Information ......................................................................................................................................... 5
)HDWXUHV%HQH¿WV ............................................................................................................................................................. 7
Water Temperature Control 8
Maximum Delivery Temperatures ....................................................................................................................................... 8
Operation Without Water Controllers ................................................................................................................................ 8
Rinnai Water Controllers ..................................................................................................................................................... 8
Location ............................................................................................................................................................................. 8
Water Resistance .............................................................................................................................................................. 8
Temperature Control ......................................................................................................................................................... 9
:DWHU&RQWUROOHU&RQ¿JXUDWLRQV ........................................................................................................................................ 9
Universal Water Controller (MC-601Q) Operation ......................................................................................................... 10
7XUQLQJ2Q ...................................................................................................................................................................... 10
$GMXVWLQJ7HPSHUDWXUH .................................................................................................................................................... 10
7UDQVIHUULQJ3ULRULW\ ......................................................................................................................................................... 10
:DWHU&RQWUROOHU&RPELQDWLRQV&RQ¿JXUDWLRQV............................................................................................................ 10
Smartstart Pre-Heat System ..............................................................................................................................................11
3UHKHDW)XQFWLRQ ..............................................................................................................................................................11
3UHKHDW2SHUDWLRQ ............................................................................................................................................................11
Water Controller Functions ...............................................................................................................................................11
Trouble Shooting 12
Error Codes ........................................................................................................................................................................ 12
1RSRZHUGLVSOD\:LUHOHVV:DWHU&RQWUROOHUZKHQ¿WWHG .............................................................................................. 13
7URXEOHVKRRWLQJ:LWKRXW:DWHU&RQWUROOHUV .................................................................................................................... 13
Service ................................................................................................................................................................................ 13
Installation Table of Contents 14
Contacts 40

Rinnai 4 HW_CF OIM
WARNING
BEFORE USING THIS APPLIANCE
Before proceeding with the operation or installation read this manual thoroughly and gain a full
understanding of the appliance, to ensure safe and correct use.
Always comply with the following precautions to avoid dangerous situations and to ensure
optimum performance.
Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in
personal injury or death.
WARNINGS: Indicates a potentially hazardous situation which, if not avoided, could result in
personal injury or death.
CAUTIONS: Indicates a potentially hazardous situation which, if not avoided, could result in
minor or moderate injury or damage to the appliance. It may also be used to alert against unsafe
practices.
WARNING
REGULATORY INFORMATION
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This Appliance must be installed correctly by an appropriately licensed tradesperson. The
installation of gas, water, and electricity must conform to local regulations.
The installation of gas, water, and electricity must conform to local regulations, including local
OH&S requirements. The installation must also comply with the instructions supplied by Rinnai.
Please keep this instruction booklet in a safe place for future reference.
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Notice to Victorian Consumers
This appliance must be installed by a person licensed with the Victorian Building Authority. Only
a licensed person will have insurance protecting their workmanship. So make sure you use a
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For further information contact the Victorian Building Authority on 1300 815 127.
WARNING
WARNING ABOUT HOT WATER
Hot water can cause scalding. Those most
at risk are children and disabled, elderly and
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burn a child in half a second).
Rinnai have water heater models which
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Temperature limiting devices may also be
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information.
ALWAYS test the water temperature before
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entering a shower, to ensure it is suitable
for the application and will not cause scald
injury.
ALWAYS supervise children whenever
they are in the bathroom or near other
sources of hot water. Ensure any hot water
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WARNINGS & IMPORTANT INFORMATION

Rinnai 5 HW_CF OIM
Operational Safety Information
IMPORTANT
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their
safety. Children should be supervised to ensure that they do not play with the appliance.
To clean your water controller(s) use a soft damp cloth
with a mild detergent.
'2127 use solvents!
Whilst hot water outlets are open the set temperature
may be lowered. However they cannot then be raised
above 43°C. In addition transfer of 'priority' between
controllers is not possible. These are safety features.
Depending on the weather conditions and the length
of the pipe between the hot water unit and the
outlet in use, there may be a variation between the
temperatures displayed at the water controller(s) and
the temperature of the water at the outlet.
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after use. However, if you prefer to turn the water
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maximum of 50°C will be stored in the system memory
at all times whilst mains power remains connected.
As a safety precaution, if a Kitchen Water Controller's
temperature is set above 50°C, transferring and then
returning 'priority' to the Kitchen Water Controller will
result in a set temperature of 50°C being selected.
When 'priority' is returned to Water Controllers other
than the Kitchen the temperature will be 42°C.
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Controller when the water heater ‘In Use’ indicator is
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the water to go cold. Someone maybe in the middle of
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S
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WARNINGS & IMPORTANT INFORMATION

Rinnai 6 HW_CF OIM
IMPORTANT
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heaters is available from Rinnai.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
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Always check water temperature carefully before use.
Refer to the :$51,1*$%287+27:$7(5on
page 4 for important safety information.
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without warning. Opening the tap further will restart
the heating appliance.
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'2127LQVHUWREMHFWVLQWRWKHÀXHRXWOHW
'2127VSUD\ZDWHUGLUHFWO\LQWRWKHÀXHRXWOHW
.HHSWUHHVVKUXEVHWFZHOOFOHDURIWKHÀXHRXWOHW
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appliances and does not indicate a fault.
'2127Spray aerosols in the vicinity of this appliance
while it is in operation.
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this appliance.
'2127 place articles on or against this appliance.
'2127modify this appliance.
'2127store pool chemicals near this appliance.
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gas, and drain all water from the appliance. If power
and the automatic frost protection are connected,
freezing will be prevented. (Anti-frost protection is
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The delivered water temperature is controlled
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delivery temperature selected and the ambient water
temperature.
OFF!
HOT!
43°C 55°C
WARNINGS & IMPORTANT INFORMATION

Rinnai 7 HW_CF OIM
FEATURES & BENEFITS
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heater.
• 7KH5LQQDLJDVFRQWLQXRXVÀRZZDWHUKHDWHUSURGXFWV1(9(5581287of hot water. Whilst electricity,
water and gas supplies are connected, hot water is available whenever hot water taps are open.
• Built into the main micro-processor is the facility to LIMIT THE MAXIMUM TEMPERATURE of the hot
water supplied. The water temperature may be limited to various values. This is particularly useful when the
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• 7KH 5LQQDL JDV FRQWLQXRXV ÀRZ ZDWHU KHDWHU SURGXFWV DUH )DQ$VVLVWHG SRZHU ÀXHG DSSOLDQFHV 7KLV
makes them COMPACTVDYLQJERWKÀRRUDQGZDOOVSDFH
• The temperature of hot water is &2167$17/<021,725(' by a %8,/7,16(1625. If the temperature
of the hot water rises to more than 3°C above the selected temperature the burner is turned OFF and only
turned ON again when the temperature falls below the selected temperature.
• The burner lights automatically when the hot water tap is opened, and goes out when the tap is closed.
,*1,7,21,6(/(&7521,&VRWKHUHLVQRSLORWOLJKW:KHQWKHKRWZDWHUWDSLVRႇQRJDVLVXVHG
• 'Deluxe' or 'Universal' Water Controllers are available as an optional extra. Depending on the models chosen,
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- %DWK¿OOIXQFWLRQ'HOX[H%DWKURRP&RQWURO2QO\
- Voice Prompting (Deluxe Control Only).
- Clock (Deluxe Control Only).
- 8SWRIRXUZDWHUFRQWUROOHUVFDQEH¿WWHG6HHSDJHIRUGHWDLOV
For further information regarding Wireless and Deluxe water controllers please contact Rinnai or visit
www.rinnai.com.au.
• 7KH6PDUWVWDUWV\VWHPZKHQ¿WWHGFDQSUHKHDWWKHZDWHULQWKHSLSHZRUNEHWZHHQWKHZDWHUKHDWHUDQG
the hot water outlets. This results in water savings and reduces waiting time for heated water at the outlets.
• Operating 12,6(/(9(/,69(5</2:.
• (5525 0(66$*(6$5( ',63/$<(' on the Water Controllers and Status Monitor*, assisting with
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,Q¿QLW\(QYLUR%%%
• The ,Q¿QLW\ 7RXFK (REU-AM2626WDL) water heater model is supplied with one "MC-503" wireless
water controller kit that includes a transceiver and a wireless water controller, that is pre-programmed as a
master controller. Additional "MC-503" wireless water controllers are available as an optional extra. Please
refer the separate wireless operation manual for instructions on how to use the supplied wireless water
controller.
WARNINGS & IMPORTANT INFORMATION

Rinnai 8 HW_CF OIM
MAXIMUM DELIVERY TEMPERATURES
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NOTE
This does not apply to “50 degree compliant” models. To meet the regulatory requirements the
maximum delivery temperature is factory set and sealed.
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refer to "Table 2. Maximum Delivery Temperatures" on page 33. The appliance model number
can be found on the dataplate, which is located on the left hand side of appliance.
OPERATION WITHOUT WATER CONTROLLERS
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WHPSHUDWXUHWKDWWKHXQLWLVFDSDEOHRIGHOLYHULQJ$VZLWKFRQYHQWLRQDOZDWHUKHDWHUVFROGZDWHUZLOOQHHGWRDGGHG
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WKHDSSOLDQFHWKHEXUQHUÀDPHZLOOEHH[WLQJXLVKHG
RINNAI WATER CONTROLLERS
NOTE
Other manufacturers water controllers are NOT compatible with Rinnai water heaters. Rinnai
water controllers brought in from other countries are also NOT compatible with Rinnai appliances
sold in Australia.
Water controllers MUST NOT be used with any Solar Boost water heater.
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&RQ¿JXUDWLRQV RQ SDJH  WR FRQ¿UP WKH PD[LPXP QXPEHU DQG FRPELQDWLRQ RI ZDWHU FRQWUROOHUV WKDW FDQ EH
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Location
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Water Resistance
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RXWVLGHRIWKHVKRZHUUHFHVV
NOTE
Controllers MUST BE installed at least 400 mm above the highest part of a sink, basin or bath.
DO NOT immerse the water controller into water.
AVOID direct exposure to water or steam as these conditions may cause a malfunction.
ALWAYS AVOID exposure to water when the battery compartment is open.
When cleaning your water controller use ONLY a damp cloth and a mild detergent.
WATER TEMPERATURE CONTROL

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Temperature Control
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NOTE
Whilst hot water outlets are open ONLY the control used to set to delivery may be used to further
adjust it. Transfer of 'priority' between controllers is NOT possible until all hot water taps have
been closed. These are safety features.
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NOTE
The temperature of outgoing hot water is constantly monitored by a built-in sensor. If the
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will automatically go out. The ‘in use’ indicator will also go out. The burner will ignite again
once the outgoing hot water temperature falls to that shown on the digital monitor (or the pre-set
limit of the appliance)
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heaters can be programmed to deliver higher temperatures from the master water controller,
or may be programmed to restrict the maximum available delivery temperature. Contact
Rinnai for more details.
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temperature is available to outlets.
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IMPORTANT
As REU-VCM2837FF/FFCPRGHOVDUH¿WWHGZLWKDEXLOWLQFRQWUROOHUWKHPD[LPXPQXPEHURI
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as a FOURTH controller.
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IMPORTANT
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controller, this is the default setting and can NOT be changed.
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WATER TEMPERATURE CONTROL

Rinnai 10 HW_CF OIM
UNIVERSAL WATER CONTROLLER (MC-601Q) OPERATION
Turning On
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Adjusting Temperature
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NOTE
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all hot water taps have been closed.
Temperatures higher than 50ºC MUST NOT be able to be selected on controllers installed in
bathrooms, ensuites or toilets. This is to help reduce the risk of burns from hot water. If this is not
the case, the controllers have been incorrectly installed. CONTACT YOUR INSTALLER.
The 'beep' sound can be muted by pressing the and buttons simultaneously for more than
3 seconds. To cancel sound muting, simply repeat the process.
CAUTION
Always check outlet water temperature before use. The parent / carer MUST check the temperature
before placing dependants in contact with hot water, see "Warning About Hot Water" on page 4.
Transferring Priority
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Indicates the temperature selected.
Error messages flash in event of a fault.
DIGITAL MONITOR
Used to select water temperature.
TEMPERATURE CONTROL BUTTONS
Indicates that the hot water heater is on.
WATER HEATER ON INDICATOR
Used to switch the water heater on and off.
ON/OFF BUTTON
Indicates that the Smartstart preheater (when fitted) is
activated.
PREHEAT INDICATOR
Used to start and stop the Smartstart preheat unit (when
fitted), See Smartstart Operation on page 11.
PREHEAT BUTTON
Indicates if this water controller is in control of water
delivery temperature.
CONTROLLER PRIORITY INDICATOR
Used to transfer control priority between water
controllers. The water controller with priority has
command of the hot water delivery temperature.
PRIORITY TRANSFER BUTTON
Indicates that a water heater is delivering hot water.
WATER HEATER 'IN USE' INDICATOR
HOTHOT
COLDCOLD
ON!ON!
WATER TEMPERATURE CONTROL

Rinnai 11 HW_CF OIM
SMARTSTART PRE-HEAT SYSTEM
The “Preheat” function works in conjunction with various Rinnai water heater models when the separately installed
and optional Rinnai “Smartstart®” module is installed.
2
7
1
8
5
3
6
4
9
1Preheat Button
Used to start and stop Smartstart preheater
2Preheat Indicator
Indicates that Smartstart preheater is activated*
3Digital Monitor
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5Controller Priority Indicator
6Temperature Control Buttons
7Water Heater "In Use" Indicator
8Priority Transfer Button
9Water Heater On Indicator
Preheat Function
When the "Preheat" function is activated and used in accordance with these instructions, water in the pipework
connected between the water heater and the hot water outlets in your house is warmed before any outlets are
opened. This results in water savings and added convenience.
Preheat Operation
1. Ensure that the hot water unit is on (temperature digits are displayed in the digital monitor 3). If more than
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controller. The "Controller Priority" indicator 5ZLOOLOOXPLQDWHWRFRQ¿UPWKDWSULRULW\KDVEHHQDVVLJQHGWRWKLV
water controller and that the hot water unit is ready to deliver hot water.
2. Select the desired temperature using the "Temperature Control" buttons 6 until the required temperature is
displayed in the digital monitor 3.
3. Press the "Preheat" button 1 once. The "Preheat" indicator 2 and the "In Use" indicator 7 will illuminate,
signifying that the preheat system has been activated.
4. Wait for the "In Use" indicator 7WRJRRXWWKLVPD\WDNHWRPLQXWHV:KHQWKLVKDSSHQVLWVLJQL¿HVWKDW
the water in the pipework has now been pre-warmed and is ready for delivery, and that a hot water tap can
now be opened.
NOTE
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For best results always wait for the "In Use" indicator 7 to go out before opening a hot water tap.
The preheat function is cancelled 5 minutes after activation and the "Preheat" indicator 2 will go
out. This is to conserve energy. To reactivate, simply repeat steps 2-4 above.
If the "Preheat" button 1 is pressed and the 'Smartstart' preheat unit is not installed, the "Preheat"
indicator 2 will still light however there will be no preheat function. The "Preheat" indicator 2
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heater.
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function wait 30 seconds before activating the 'Preheat' function. Attempting to use the 'Preheat'
function earlier will result in voice prompts being repeated until the system is reset. The system
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Water Controller Functions
Water controller functions such as temperature control and transfer of priority between multiple controllers are not
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WATER TEMPERATURE CONTROL

Rinnai 12 HW_CF OIM
ERROR CODES
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Code Description Remedy
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NOTE
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In the majority of cases, you may be able to clear the Error Code simply by turning the hot water
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Error Code still remains, contact Rinnai for advice.
TROUBLE SHOOTING

Rinnai 13 HW_CF OIM
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Troubleshooting Without Water Controllers
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NOTE
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installation errors or operation errors are NOT covered by the Rinnai warranty. Refer to separate
warranty booklet for details.
SERVICE
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NOTE
When making a service enquiry, having both the model and serial numbers available, will help our
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This information should have been copied to the "Installation Record" on page 31 by your
installer, however if this is not the case, the information can also be found on the data plate
located on the left hand side of the appliance.
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TROUBLE SHOOTING

Rinnai 14 HW_CF OIM
Operation Table of Contents 3
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Regulations ........................................................................................................................................................................ 16
Applicable Models ............................................................................................................................................................. 16
Appliance Location ............................................................................................................................................................ 16
Outdoor Models ............................................................................................................................................................... 16
Indoor Models ................................................................................................................................................................. 16
Mounting Of Appliance .................................................................................................................................................... 17
Service Connection Points ............................................................................................................................................. 17
Pipe Sizing ...................................................................................................................................................................... 17
Water Supply ................................................................................................................................................................... 17
Altitude Setting REU-VCM ONLY .................................................................................................................................... 18
Altitude Setting REU-AM3237 ONLY .............................................................................................................................. 18
Hot Water Delivery Temperature ...................................................................................................................................... 19
,QVWDOODWLRQ&RQ¿JXUDWLRQV ............................................................................................................................................... 19
Flueing 20
Appliance Flue Terminal ................................................................................................................................................... 20
Horizontal Obstructions ................................................................................................................................................... 21
Sideways Flue Diverter - All models except REU-VCM .................................................................................................. 21
Multiple Appliance Installations ....................................................................................................................................... 21
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Basic methods of installation .......................................................................................................................................... 22
Flue Length Dipswitches ................................................................................................................................................. 22
Multiple Terminal Installations ......................................................................................................................................... 22
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,PSRUWDQW&RQVLGHUDWLRQV)RU1HXWUDOLVHU'UDLQ3LSH.................................................................................................... 23
Length & Changes Of Direction ...................................................................................................................................... 23
Installation Method ............................................................................................................................................................ 23
Interconnection Of Condensate / Neutraliser Drain Lines ............................................................................................... 24
Common Stack Discharge .............................................................................................................................................. 24
Tundish Drain Lines ........................................................................................................................................................ 24
Areas Subject To Freezing .............................................................................................................................................. 24
INSTALLATION TABLE OF CONTENTS

Rinnai 15 HW_CF OIM
Water Controller Installation 25
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Master / Sub Water Controllers & Associated Temperatures .......................................................................................... 25
Water Controllers Limitations .......................................................................................................................................... 25
Location ........................................................................................................................................................................... 26
Communication Cables ................................................................................................................................................... 26
Joining Communication Cables (REU-A / REU-AM) ....................................................................................................... 26
Connecting Communication Cable(s) With 'Ezi connect' (REU-A / REU-AM) ................................................................27
Connecting Communication Cables to Mini-Plug (REU-E & REU-VCM) ........................................................................ 27
Connecting Communication Cables to PCB (REU-E & REU-VCM) ................................................................................ 28
Universal Water Controller (MC-601Q) Installation ........................................................................................................ 28
Additional Programming & Activation Requirements ....................................................................................................... 29
Commissioning 30
Testing ................................................................................................................................................................................ 30
Delivery Temperature ........................................................................................................................................................ 30
50°C Compliant Models .................................................................................................................................................. 30
For All Other Models ...................................................................................................................................................... 30
*DV3UHVVXUH6HWWLQJ ....................................................................................................................................................... 31
Wiring Diagram .................................................................................................................................................................. 31
Commissioning Check List ............................................................................................................................................... 31
Installation Record ............................................................................................................................................................ 31
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Table 1. Supply, Flow rates, Weights & Service Connections ....................................................................................... 32
Table 2. Maximum Delivery Temperatures ...................................................................................................................... 33
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Table 4. Appliance Dimensions - B Series & Universal Water Controller ..................................................................... 37
Table 5. Other Accessories ............................................................................................................................................... 38
Contacts 40
INSTALLATION TABLE OF CONTENTS

Rinnai 16 HW_CF OIM
WARNING
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75$'(63(5621ONLY.
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Remove transit protection. Check for damage, if any is found DO NOT install and contact supplier.
REGULATIONS
This appliance must be installed in accordance with:
• Current AS/NZS 3000, AS/NZS 3500 and AS/NZS 5601
• Rinnai Installation Instructions
• Plumbing Code of Australia (PCA)
• Local regulations and municipal building codes including local OH&S requirements
APPLICABLE MODELS
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the cover page of this manual.
APPLIANCE LOCATION
This appliance MUST BESODFHGDVFORVHDVSUDFWLFDEOHWRWKHPRVWIUHTXHQWO\XVHGKRWZDWHURXWOHWRURXWOHWVWR
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Rinnai for further information.
$Q$&9$PSHDUWKHGSRZHUSRLQWMUST BE provided adjacent to the appliance. For outdoor installations
WKLVSRZHUSRLQWMUST BE ZHDWKHUSURRI,WMUST BEFOHDURIWKHJDVDQGZDWHUFRQQHFWLRQVWRWKHDSSOLDQFH
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This appliance MUST BEPRXQWHGRQDYHUWLFDOVWUXFWXUHZLWKWKHZDWHUDQGJDVFRQQHFWLRQVRQWKHXQGHUVLGH
SRLQWLQJGRZQZDUGV)RUDSSOLDQFHVLQVWDOOHGRQHOHYDWHGVWUXFWXUHVRUXQGHUÀRRUVVSHFL¿FUHTXLUHPHQWVDSSO\
Refer to AS/NZS 5601 Section 6 for details.
All appliances MUST BELQVWDOOHGWRHQVXUHDFFHVVFDQEHJDLQHGZLWKRXWKD]DUGRUXQGXHGLႈFXOW\IRULQVSHFWLRQ
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means of scissor or boom lifts or other approved safe access equipment that is acceptable to local authorities.
This appliance 0867127EHXVHGDVDGRPHVWLFVSDRUVZLPPLQJSRROKHDWHU
Models other than REU-VCM and REU-AM3237 are suitable for installation locations up to 1000 metres above sea
level and are 127 suitable for alpine areas.
REU-VCM and REU-AM3237 models are suitable for installation locations higher than 1000 metres above sea
level such as alpine areas, refer to "Altitude Setting REU-VCM ONLY" and "Altitude Setting REU-AM3237 ONLY"
on page 18 or further information.
Outdoor Models
This appliance is designed for ‘Outdoor’ Installation only. As such, it MUST BE located in an above ground open
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Indoor Models
This appliance is designed for ‘Indoor’ installation only. It may be installed ‘Outdoors’ in an enclosure if the
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GENERAL INSTALLATION INFORMATION

Rinnai 17 HW_CF OIM
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Rinnai internal models described in this manual MUSTXVHWKH&R$[LDO5LQQDL))ÀXHFRPSRQHQWV7KHXVHRI
QRQ5LQQDL))ÀXHFRPSRQHQWVPD\UHVXOWLQDGDQJHURXVVLWXDWLRQDQGYLRODWHVUHJXODWLRQV7KHPD[LPXP))ÀXH
OHQJWKLVPHWUHVUHIHUWRWKH))ÀXHLQVWDOODWLRQPDQXDOIRUÀXHFRQ¿JXUDWLRQRSWLRQV
This appliance MUST BEORFDWHGVRWKDWWKHÀXHWHUPLQDOH[LWVWKHEXLOGLQJDWDVXLWDEOHSRLQWWKHKRUL]RQWDOZDOO
FFWALLTERM or vertical (roof) FFROOFCOWL terminals are available for this purpose. The location of these
terminals MUST BELQDFFRUGDQFHZLWK6HFWLRQDQG)LJXUHRI$61=6$QH[WUDFWLQSDUWKDVEHHQ
reproduced in the "Appliance Flue Terminal" section of these instructions on page 20.
Mounting Of Appliance
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IRUVSHFL¿FPRGHOZHLJKWV
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section 6. Wooden plugs shall 127 be used.
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Service Connection Points
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127EH¿WWHGGLUHFWO\WRWKHDSSOLDQFH
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personal hygiene. Refer to "Hot Water Delivery Temperature" on page 19.
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Pipe Sizing
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regulator MUST BEVSHFL¿HGIRUWKLVJDVUDWH
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Water Supply
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GENERAL INSTALLATION INFORMATION

Rinnai 18 HW_CF OIM
Altitude Setting REU-VCM ONLY
IMPORTANT
REU-VCM models are suitable for installation locations higher than 1000 metres above sea level
such as alpine areas. To ensure proper appliance operation the installer MUST select one of the
two available altitude ranges for the appliance these are:
'DEFAULT' suitable for installation locations that are from 0 to 900 metres
above sea level.
'HIGH' suitable for installation locations that are from 901 to 1800 metres
above sea level, as would be typical of installations located in alpine areas.
Refer to "Commissioning Instructions" located inside the appliance front
cover for details.
OFF ON
DipSW1
6
OFF ON
DipSW2
6
Default
OFF ON
DipSW1
6
OFF ON
DipSW2
6
High
Altitude Setting REU-AM3237 ONLY
IMPORTANT
REU-AM3237 models are suitable for installation locations higher than 1000 metres above sea
level such as alpine areas. To ensure proper appliance operation the installer MUST select one of
the two available altitude ranges for the appliance these are:
'DEFAULT' suitable for installation locations that are from 0 to 900 metres
above sea level.
'HIGH' suitable for installation locations that are from 901 to 1800 metres
above sea level, as would be typical of installations located in alpine areas.
Refer to "Commissioning Instructions" located inside the appliance front
cover for details.
Default
Dipswitch
High
1
OFF ON
2
3
4
1
OFF ON
2
3
4
GENERAL INSTALLATION INFORMATION

Rinnai 19 HW_CF OIM
HOT WATER DELIVERY TEMPERATURE
WARNING
This appliance may deliver water at high temperature. Refer to the Plumbing Code of Australia
(PCA), local requirements and installation instructions to determine if additional delivery
temperature control is required.
Local regulations and or the requirements of AS/NZS 3500 MUST be addressed regarding the temperature
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areas may be limited to 50°C or less. To ensure these regulations and or requirements are met the system MUST
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,QVWDOODWLRQ&RQÀJXUDWLRQV
WARNING
This appliance MUSTRQO\EHLQVWDOOHGLQDFFRUGDQFHZLWKWKHDFFHSWDEOHSOXPELQJFRQ¿JXUDWLRQV
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control is inadequate.
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EHORZ,I\RXDUHXQVXUHDERXW\RXUORFDOUHJXODWLRQVFRQWDFW\RXUUHJXODWLQJDXWKRULW\RU5LQQDL,IWKHDSSOLDQFH
is 127PDUNHGWRVWDWHWKDWLWGHOLYHUVZDWHUQRWH[FHHGLQJ&RU\RXUORFDOUHJXODWLRQVUHTXLUHLQVWDOODWLRQZLWK
D7HPSHUDWXUH/LPLWLQJ'HYLFHWKHQLQVWDOOWKHDSSOLDQFHLQDFFRUGDQFHZLWK'LDJUDPEHORZ
IMPORTANT
If the appliance is to deliver water primarily for the purposes of personal hygiene in an early
childhood centre, primary or secondary school, nursing home or a similar facility for the care of
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(TLD), such as a Tempering Valve may be required even if the appliance is set to 50º C or less. For
these types of applications contact Rinnai.
50º C
KITCHEN Water controller
(optional)
Water controller
(optional)
Water controller
(optional)
Water controller
(optional)
LAUNDRY
BATHROOM
ENSUITE
+
2
7
&
2
/
'
*
$
6
Diagram 1 : 50°C Appliance
KITCHEN
Water controller
(optional)
Water controller
(optional)
LAUNDRY BATHROOM
Water controller
(optional)
Water controller
(optional)
ENSUITE
TLD
+
2
7
&
2
/
'
*
$
6
Diagram 2 : NOT a 50°C Appliance
NOTE
Minimum length of pipe from hot outlet
to nearest hot water tap 2 metres. NOTE
TLD = Temperature Limiting Device.
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GENERAL INSTALLATION INFORMATION

Rinnai 20 HW_CF OIM
APPLIANCE FLUE TERMINAL
+RUL]RQWDO7HUPLQDO&OHDUDQFHV([WUDFWIURP$61=6
Min. Clearances
(mm)
For appliances up to 50 MJ/h input 200
For appliances over 50 MJ/h input 300
300*ecafrusrehtoroynoclabaevoba,dnuorgehtmorFb
300*renroclanretxerollawnruteratnor
Fc
d
From a gas meter (M) (see Note 5)
(see Clause 5.11.5.9 for vent terminal location of regulator)
(see Table 6.7 for New Zealand requirements)
1000
eFrom an electricity meter or fuse box (P) † (see Note 5) 500
epipliosroepipniardamorFf
gHorizontally from any building structure* = or obstruction facing a terminal 500
hFrom any other flue terminal , cowl, or combustion air intake * 300
Appliances up to 150 MJ/h input * 300
Appliances over 150 MJ/h input up to 200 MJ/h input * 300
Appliances over 200 MJ/h input up to 250 MJ/h input * 500
Appliances over 250 MJ/h input * 1500
All fan-assisted flue appliances, in the direction of discharge 1500
1000rewolbapsagnidulcni,telnir
ialacinahcemamorFk
Space heaters up to 50 MJ/hr input
Other appliances up to 50 MJ/hr input 500
Appliances over 50 MJ/h input and up to 150 MJ/h input 1000
Appliances over 150 MJ/h input 1500
metI.feR
a
Below eaves, balconies and other projections:
FIGURE 6.2 (in-part) LOCATION OF FLUE TERMINALS OF BALANCED FLUE,
ROOM-SEALED, FAN-ASSISTED OR OUTDOOR APPLIANCES
n
j
Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into a
building with the exception of sub-floor ventilation:
Vertically below an openable window, non-mechanical air inlet, or any other opening into a
building with the exception of sub-floor ventilation:
Where dimensions c, j or k cannot be achieved an equivalent horizontal distance measured
diagonally from the nearest discharge point of the terminal to the opening may be deemed by
the Technical Regulator to comply.
See Clause 6.9.4 for restrictions on a flue terminal under a covered area.
See Figure J3 for clearances required from a flue terminal to an LP Gas cylinder. A
flue terminal is considered to be a source of ignition.
For minimum clearances not addressed above acceptance should be obtained from the
Technical Regulator.
Minimum clearances d and e also apply to any combustion air intake openings of appliances.
1
2
3
4
5
* Unless appliance is certified for closer installation.
† Prohibited area below electricity meter or fuse box extends to ground level.
NOTES:
75
Shading indicates prohibited
area for flue terminals
LEGEND:
I= Mechanical air inlet
S= Structure
M= Gas meter
T= Flue terminal
P= Electricity meter or fuse box
Z= Fa n- as si st ed ap pli an ce o nly
Direction of
discharge
See Note 1
See Note 1
Opening into
a building
T
T
T
T
T
T
T
C
M
d
d
e
e
h
j
j
j
n
b
f
a
h
P
Z
S
k
k
g
g
g
I
T
Door
Fan
assisted
150
FLUEING