Rinnai RF1800 User manual

This appliance shall be installed in accordance with:
• Manufacturer’s Installation Instructions
• Current AS/NZS 5601 AS/NZS 3000
• 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 manufacturers instructions.
All Rinnai gas products
are A.G.A. certified.
Operation & Installation Manual
RF1800

Rinnai i RF1800 OIM
Congratulations on the purchase of your RF1800 Decorative Gas Flame Effect appliance
We trust you will have many years of enjoyment from your purchase.
THIS MANUAL CONTAINS IMPORTANT INFORMATION. FOR SAFETY PLEASE READ
CAREFULLY BEFORE PROCEEDING WITH ASSEMBLY, INSTALLATION AND OPERATION
OF YOUR NEW FLAME FIRE AND GAIN A FULL UNDERSTANDING OF THE APPLIANCE.

Rinnai 1 RF1800 OIM
Before You Start 2
Safety 3
Safety Devices 4
Appliance Features 5
Operation Instructions 5
Operational Safety 5
Power Failure 5
Cleaning 6
When to call for Service 6
Service 6
Installation Table of Contents 7
Contacts 22
OPERATION TABLE OF CONTENTS

Rinnai 2 RF1800 OIM
BEFORE YOU START
INSTALLATION REQUIREMENTS
This appliance MUST BE installed by an authorised person.
The installation MUST conform to local regulations.
The installation MUST also comply with the instructions supplied by Rinnai.
Service and removal MUST BE carried out by an authorised person.
CERTIFICATION
The Rinnai RF1800 has been certied by the Australian Gas Association.
The Certication Number is shown on the appliance dataplate.
No parts or functions are to be modied or permanently removed from the heater.
Please keep these instructions in a safe place for future reference.
CARTON CONTENTS
The main RF1800 engine components are supplied in a crate, components for additional installation methods are
packed separately. The following table lists the contents for each component package, ensure that the components
listed for the installation method being installed are present before proceeding with the installation.
Item Description Contents
AB C
1Rinnai RF1800 gas re engine ●
2Gas connection kit: 200mm 3/8 Flexi tube with plug and 3/8” - 1/2” reducing are connector ●
3Burner end cap ●
4This Operation and Installation Manual ●
5Rear reector option for corner or fully recessed installation ●
6Instructions for reector panel installation ●
7Rivet pack ●
8End reector option for through wall or fully recessed installation ●
9Instructions for reector panel installation ●
10 Rivet pack ●
2
1
3
4
A B
C
7
6
5
10
8
9

Rinnai 3 RF1800 OIM
SAFETY
WARNING
DO NOT OPERATE THIS APPLIANCE WITHOUT READING AND UNDERSTANDING THESE
INSTRUCTIONS.
Taking time to familiarise yourself with the appliance’s features and operation will allow you to
get the most out of your appliance for years to come.
Please keep these instructions for future reference. Failure to comply with these instructions could
result in a re or explosion, which could cause serious injury, death or property damage.
Improper installation, adjustments, service or maintenance can cause serious injury, death or property
damage. Such work must be performed by authorised personnel.
The appliance must be installed in accordance with the local gas and electrical authority regulations.
Flue terminal must always vent directly to outdoors.
DO NOT extend the ue vertically or horizontally in ways other than prescribed in the appliance
manufacturers’ installation instructions.
For information on gas consumption, see data plate on the appliance.
This appliance must not be installed where curtains or other combustible materials could come into
contact with it. In some cases curtains may need restraining.
When considering installation ensure minimum clearances as in the following drawing are adhered to
for both sides of the appliance:
1000
(Min)
500
(min)
1000
(Recommended
minium height)
500
(min)
300
When within 300mm of floor
1000
(min)
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.
The appliance is not intended for use by young children or inrm persons without supervision.
Young children must be supervised when in the vicinity of this heater while it is in operation.
For protection of young children or the inrm a secondary guard is required.
If the supply cord is damaged or requires replacing, it must be replaced by the manufacturer or the
manufacturer’s agent or similarly qualied person in order to avoid a hazard.
DO NOT connect to an LPG Gas cylinder indoors.
A dedicated 240 V earthed 10 Amp power point must be used with this appliance.
DO NOT modify this appliance. Modifying from original specications may create a dangerous situation
and will void your warranty.
ONLY THE FLUE COMPONENTS SPECIFIED BY RINNAI MUST BE USED.
Unpack the heater and check for damage. DO NOT INSTALL A DAMAGED HEATER. If the heater is
damaged, contact your supplier for advice.
Before installing the heater, check the label for the correct gas type (refer rating plate, inside the
appliance). Refer to local gas authority for conrmation of the gas type if you are in doubt.

Rinnai 4 RF1800 OIM
SAFETY
IMPORTANT
DO NOT sit or lean against the heater.
DO NOT post or allow children to post articles into the heater.
DO NOT cover or place articles on this heater.
DO NOT operate / install this heater in areas where painting is taking place, or in places such as
hairdressing salons, where there may be uff and dust, and where aerosols are used.
DO NOT place articles on or against this appliance.
DO NOT use or store ammable materials near this appliance. Keep ammable materials away from
heater.
Combustible materials MUST NOT be placed where the heater could ignite them.
DO NOT spray aerosols in the vicinity of this appliance while it is in operation. Most aerosols contain
ammable substances which can be a hazard if used near this appliance when it is in use.
DO NOT use power boards or double adaptors to operate this appliance. The heater MUST NOT be
located below a power socket-outlet.
DO NOT place containers of liquid on top of the heater. Water spillage can cause extensive damage
to the appliance and create an electrocution hazard.
DO NOT CONNECT TO AN LPG GAS CYLINDER INDOORS.
Turn the heater ‘OFF’ when not in use.
DO NOT unplug the heater while it is in operation.
When the heater is operated for the rst time or after long periods of non use a slight odour may be
emitted, this is normal. However if odours persist switch ‘OFF’ the appliance and contact Rinnai.
Appliances incorporating a live fuel effect and designed to operate with luminous ames, may exhibit
slight carbon deposits.
This is primarily a decorative appliance and has not been designed as a space heater.
NOT INTENDED FOR FIREPLACE INSERT
WHAT TO DO IF YOU SMELL GAS
DO NOT try to light any appliances.
DO NOT touch any electrical switches: do not use any phone in your building
Immediately close the shut-off valve at the gas meter or bottles
Call an authorised service technician
SAFETY DEVICES
Electrical Fuse:
The electrical circuits are protected by a fuse. When the fuse blows, the heater will not operate. The fuse must be
replaced by an authorised person.
Flame Failure Sensing System:
This device automatically cuts off the gas supply to the heater in the event of a ame failure.
Power Failure:
In the event of a power failure or power cut, the gas valves will automatically close. Refer to “Electrical Supply” on
page 10 for further details.

Rinnai 5 RF1800 OIM
APPLIANCE FEATURES
OPERATION INSTRUCTIONS
To operate your appliance for the rst time, ensure that the gas supply is on and that the appliance has been tested
and commissioned by the installer (refer to the “Commissioning Checklist” on page 20).
Your appliance should have been installed with a separate isolating wall switch mounted on a nearby wall and may
also have a start button connected to a relay*.
Turn the wall switch to the on position and within a few seconds you will hear a sparking sound and gas will start
to ow through the burner. Once a ame is established the spark ignition will stop.
If the appliance fails to ignite within about 5 seconds, the gas will stop owing and the gas control will “lock out”.
This is most likely when the appliance has just been installed or has not been used for some time. Turn the wall
switch off and the on again and press the start button and the cycle will start again.
If the appliance fails to ignite after 4 attempts then consult the trouble shooting section on page 20 or contact
your installer or an authorised service person to arrange a service call.
OPERATIONAL SAFETY
This appliance is factory tested and the installation MUST BE tested by an authorised installer. You should not
experience any odour from your appliance other than initial burn off smell the rst time it is used. Should any odour
persist after the initial burn in, turn off the gas supply and arrange for an authorised person to make a service call.
This appliance has a ame failure safety system which ensures that in the event of an ignition failure, gas supply
failure or ame being extinguished for any reason, the appliance will shut down. The appliance will attempt to re-
start automatically.
Lock Out
If the appliance fails to re-ignite then the appliance will “Lock Out” and will need to be re-set manually. This is done
by turning the power ‘OFF’ at the wall switch.
After manual reset wait at least 10 seconds before attempting to restart the appliance and if the appliance still fails
to ignite after 4 attempts then turn off the power and refer to the trouble shooting section on page 20.
NOTE
This appliance burns with a real ame and as such there are considerations to be made to ensure
the safety of children and the inrm. In such circumstances a re guard should be secured in
front of the appliance.
Furniture and other objects must not be placed within 1 metre of the appliance.
POWER FAILURE
In the event of a power failure, your appliance cannot be operated until power is restored.
NOTE
If a power failure occurs while the appliance is in operation and if the wall switch is left in the ‘ON’
position, when the power is restored the appliance will then automatically restart.
* Provision of a latched relay (see page 21 for details) or other automated power supply cut off
can be used to prevent the appliance from restarting.
Glass Burner
Glass Panels
Outer Trim
Heat Reflector Panels
(Additional Rear and End reflector panels not shown)

Rinnai 6 RF1800 OIM
CLEANING
Regular cleaning of your appliance is important to keep it looking its best. Some points on cleaning:
WARNING
DO NOT attempt to clean appliance while in operation or when hot.
DO NOT spray cleaners onto or around the burner as the liquid can get between the glass panels
and cause water spotting.
• It is important to keep the burner free from debris such as dust, insects and anything else that could cause a
blockage. Carefully use a vacuum cleaner to clean the gap between the two glass panels that make up the
burner.
• The burner and the glass panels can be cleaned using household glass cleaners, when doing so it is best apply
cleaners by cloth rather than by spray. DO NOT spray cleaners onto or around the burner.
• The stainless steel reectors and trims can be cleaned using standard household stainless steel cleaners. Take
care not to scratch the steel or spray cleaners onto the burner
WHEN TO CALL FOR SERVICE
There are a few points to look out for that could indicate that your appliance requires a service call.
• If soot starts to form on any of the panels (trim or glass).
• If you can smell gas, regardless of whether the appliance is going or not.
NOTE
There can be a brief smell of gas as the appliance is going through the ignition sequence, however
this should soon stop once the appliance has started.
• If there is excessive noise or explosive ignition as the burner lights, this could be due to blocked burner ports.
• If the ames change shape or colour. Under normal operation the ames will be a bright, luminous, yellow
colour. If they become a dark, streaky, orange colour, or a very blue colour, this could indicate a problem.
Abnormal Flame Pattern
• If the ame looks abnormal. Signs of abnormal ame operation could be:
A very short ame that does not reach across to the burner.
A very long ame that reaches far beyond the ame burner or long yellow
ames.
A roaring noise when the appliance in operation or the ame “lifting off” from
the burner.
• If there are large soot deposits that keep building up on the burner or panels.
• If there is excessive noise or explosive ignition as the burner lights, this could
be due to blocked burner ports.
• If a smell of ue gas continues after the appliance has been operating for at
least 10 minutes. This could indicate a blocked ue or other problem. This
smell is acceptable during the rst few minutes as the ue heats up and starts
to draw.
• If the ames change shape or colour. When the appliance rst starts the
ames will tend to be quite blue for a few minutes but will change to a more
yellow/orange colour as the system heats up, this is normal, but if the ames
either stay very blue, or turn a dark, streaky orange colour, this could indicate
a problem. Contact Rinnai for advice.
SERVICE
In order for your appliance to give years of comfort and enjoyment, it is recommended that it is serviced on an
annual basis by a licensed service gas-tter. Please refer to the back of this manual for contact details.
Disconnect the power and gas supply to the appliance before proceeding with the service.
Power Cord Replacement
If the power cord becomes damaged, replacement is to be by an authorised person only using a manufacturer
supplied part.

Rinnai 7 RF1800 OIM
Operation Table of Contents 1
Installation Safety 8
Specications 9
Dimensions 9
Gas & Electrical Supplies 10
Clearances, Mantels, Surrounds, Recesses & Hearths 11
Ventilation 12
Flue Requirements 12
Engine Installation 14
Appliance Gas Connection & Commissioning 18
Final Checks 20
Trouble Shooting 20
Commissioning Checklist 20
Wiring Diagrams 21
Contacts 22
INSTALLATION TABLE OF CONTENTS

Rinnai 8 RF1800 OIM
INSTALLATION SAFETY
WARNING
This appliance must be installed by a suitably qualied person in accordance with local codes and AS/
NZS 5601
This is primarily a decorative appliance and has not been designed as a space heater
This appliance has been tested to AS 4558
DO NOT operate this appliance without reading and understanding these instructions rst
This appliance is designed for installation into a timber framed construction and new or existing masonry
installations
NOT INTENDED FOR FIREPLACE INSERT
Only the approved ue components specied by Rinnai MUST BE used
This appliance must be installed into a well ventilated room in accordance with AS/NZS 5601
This appliance is designed for indoor installation only; NOT TO BE INSTALLED OUTDOORS
Rinnai is not responsible for incorrect or improper installations
All installations must be carried out by authorised personnel
Be sure to complete the installer details section of the user guide before signing off the installation
DO NOT place articles on or against this appliance
DO NOT store chemicals or ammable materials, or spray aerosols near this appliance
DO NOT operate with panels, covers or guards removed from this appliance.
DO NOT modify this appliance

Rinnai 9 RF1800 OIM
SPECIFICATIONS
Models: RF1800L(N/P) “Left handed model”, RF1800R(N/P) “Right handed model”
Gas Types: Natural Gas
Propane Gas
Description: Indoor Decorative Appliance
Flue: 2x 150 mm stainless steel inner/ 200 mm galvanized steel outer
Minimum of 2.4 metres of ue, 3.6 metres if off-set bends are used
Flue Cowl: AGA approved 150 mm or 200 mm Flue Cowl(s) (dependant of ueing method)
Gas Connection: 3/8” BSPF Gas Flare onto gas control
Power: 230/240V AC 50hz, 1 Amp
Burner: Bunsen type atmospheric
Gas Control: SIT 840 with SIT 579. 402 DBC
Ignition: Electronic
Flame Monitoring: Flame rod
Control: Isolating switch
NOTE
For all other specications refer to the appliance data plate
DIMENSIONS
Engine
NOTE
The drawings above are for the Left handed version of this appliance. A right hand version is also
available, for which the dimensions are the same yet reversed.
210
453
2174
1825
1469
469
Gas Inlet
Power
Inlet
180
48
30
35
78
4040
Open Side
AGlass Side
B
AB
A
B
A
B
AB
B
260
297
A
B
B

Rinnai 10 RF1800 OIM
NOTE
The following installation instructions are for a left handed version of the appliance, when
installing the right handed version dimensions and other references will need to be reversed.
GAS & ELECTRICAL SUPPLIES
Gas Supply
A suitable gas supply needs to be provided
to the Left hand end of the appliance at the
lower front corner of the installation cavity.
The pipe sizing should be calculated to
supply at least 40 MJ/h
Allow sufcient pipe penetration to make the
connection as shown right.
NOTE
The gas inlet access point
for this appliance is provided
with a set of aps to allow
consumer piping with ttings
attached to be passed through
for connection.
For vermin control ensure that
these aps are closed again
once the piping has been
installed.
Use the supplied gas connection kit (200mm
3/8 Flexi tube with plug and 3/8” - 1/2”
reducing are connector) to connect the
appliance to the consumer piping.
Electrical Supply
The appliance is supplied with a power
lead (approx. 1.8m long). This needs to be
connected to an isolating wall socket within
the cavity and connected to an isolating wall
switch, preferably located to the left of the
appliance, facing into the room, not inside
the framing cavity.
NOTE
If a power failure occurs while
the appliance is in operation
and if the wall switch is left
in the ‘ON’ position, when the
power is restored the appliance
will then automatically restart.
Provision of a latched relay (or
other automated power supply
cut off) can be used to prevent
the appliance from restarting,
refer to “Wiring Diagrams” on
page 21 for further details in
regards to latched relays.
This supply is used to isolate all power from
appliance. The power cord is designed for
a 230/240V AC 10 amp supply. Electrical
connections must be in accordance with AS/
NZS 3000 and installed by an authorised
person.
Open Side
Glass Side
A
B
AB
58 from
finished lining
48
1982 max. over wall lining189 min.
A
B
This access hole is only
used when installing a
right handed applaince
A
Consumer pipe
1/2" flare nut
1/2" - 3/8" flare
reducer
200mm long
3/8" flared flexi tube
Appliance
point
connection
Open the hole cover
plates to fit consumer
pipe and flexi tube
Close the hole cover
plates over consumer
pipe
and lock in place

Rinnai 11 RF1800 OIM
CLEARANCES, MANTELS, SURROUNDS, RECESSES & HEARTHS
Clearances
The appliance must be installed with the shown
minimum clearances to combustible materials.
Mantles
A timber mantel may be installed above this appliance
but must be within the grey area as shown here.
Timber Surrounds
As with mantels when a timber surround is to be tted,
ensure it complies with minimum timber clearances
of 300mm above and 150mm to each side.
Recesses
If the appliance is to be installed into a recess the
recess must comply with the limitations shown right.
NOTE
The same limitations apply to the sides
of the appliance.
TV or Ornamentation Above The Heater
CAUTION
The installation of electrical appliances
above and in the vicinity of the heater
such as, but not limited to, Plasma
TV, LCD TV, Home Theatre Screens,
Speakers, etc. must comply with their
manufacturers’ instructions.
It is the responsibility of the installer/
end-user to check the installation
instructions of these items and to
ensure the location is suitable.
This caution also extends to, but
is not limited to, ornaments such
as: Paintings, Prints, Photographs,
Tapestries, Mirrors, Stuffed Animals,
etc.
Rinnai does not take any responsibility
for any damage occurring to any items
installed above and in the vicinity of
the heater.
IDEA
Use either a shelf or mantel below the
TV or ornament or alternately you can
construct a recess to mount TV or
ornament on.
Check the manufacturers installation
instructions for these items and ensure
the recess is suitable.
Hearths
Although a solid hearth is not required, if the appliance
is to be installed within 300mm of the oor, it is
recommended that protection is given to any ooring
surface directly in front of the unit as the appliance
produces a large amount of radiant heat and this
might cause damage to ooring and furnishings that
are too close.
300*
X
X
45°
Top Trim
Mantel
Wall
MANTEL MUST NOT EXTEND BEYOND THIS AREA
* NOTE THAT SIDE CLEARANCES CAN BE
REDUCED FROM 300MM TO 50MM
SIDE VIEW
100
45°
FIRE PROOF
BOARD
FIRE PROOF BOARD FOR
MINIMUM HEIGHT OF 300MM
RECESS MUST NOT
EXTEND BEYOND
THIS AREA
When within 300mm of floor
300
300
1000
(Min)
500
(min)
1000
(Recommended
minium height)
1000
(min)
500
(min)

Rinnai 12 RF1800 OIM
VENTILATION
IMPORTANT
This appliance is a decorative ame effect appliance, the space or room in which the unit is
installed must have adequate xed ventilation compliant with the requirements of AS/NZS 5601.
For Decorative Gas Log Fires this requires that one or more openings with a combined free
ventilation area of not less than 314 cm² shall be provided for each appliance.
The opening may be provided by any of the following options, provided that there is a ventilation
path to outside that is unobstructed by building material or insulation:
a) Directly through an outside wall (preferred option).
b) Through to an outside wall but offset.
c) Into a cavity ventilated to outside.
d) Into an underoor space ventilated to outside.
e) Into a roof space ventilated to outside.
FLUE REQUIREMENTS
IMPORTANT
ONLY the Rinnai ue components described in this manual are to be used with this appliance.
The installation of the ue system MUST comply with the requirements of AS/NZS 5601.
Examples of the available ue component congurations are shown below.
B1
B2
B3/4
B2
C
C
Y Piece - Direct
B3/4
Twin - Direct
FRONT VIEWFRONT VIEW
A
A
A
A
474mm
E
A
A
A
A
Twin - Extended OffsetTwin - Offset
A
A
SIDE
VIEW
SIDE
VIEW
GG
A
EE
E
SIDE
VIEW
SIDE
VIEW
B
Y Piece - Offset
A
E
E
Y Piece - Extended Offset
C
C
E
A
E
C
C
B
B
B
F
C
F
A
G
DDD
B
F
C
F
A
(Option 1)(Option 1)
(Option 2)
(Option 2)
2.4m* 3.6m* 2.4m* 3.6m* 3.6m* 3.6m*
* This is the minimum flue height for the configurations as shown, for additional bends increase the flue height in accordance with AS/NZS 5601.
Y Piece - Direct: Allows the twin ues to be joined to a single ue for termination. It is recommended
that the ue be taken vertically as high as is practicable before joining to the Y Box assembly.
Y Piece - Offset / Extended Offset: Same as “Y Piece - Direct” with the inclusion of one 45° offset
or extended offset.
Twin - Direct: Uses two separate ue pipes to the ue termination point.
Twin - Offset / Extended Offset: Same as “Twin - Direct” with the inclusion of one 45° offset or
extended offset.
Minimum
Flue Heights
Y Piece Direct Y Piece Offset Twin - Direct Twin - Offset Twin - Extended Offset
2.4m 3.6m* 2.4m 3.6m* 3.6m*
* Only 1 x 45° bend set can be used on each ue for Offset or Extended Offset ue installations.
Additional bends may be utilised, however this will then require that additional vertical lengths
also be included to increase the ue height in accordance with AS/NZS 5601.

Rinnai 13 RF1800 OIM
Flue Components
A. AUFLUE150/200
1220mm twin skin ue pipe -
ø 150mm inner / ø 200mm outer
(approx 1180mm when installed)
B. AUFLUEYILL18
1. Y piece collector box (1x) -
2x ø 150mm inner / ø 200mm outer to
1x ø 200mm inner / ø 250mm outer.
2. 45° twin skin bends (2x) -
ø 150mm inner / ø 200mm outer.
3. 150mm ue pipe (2x) -
ø 150mm.
4. 200mm ue pipe over-wraps (2x) -
ø 200mm.
(height approx 615mm when installed)
C. AUFLUE200/250
1220mm twin skin ue pipe -
ø 250mm inner / ø 300mm outer
(approx 1180mm when installed)
D. RFCOWL200/250
Connection ø 200mm, Outer ø 350mm
E. AUBENDSET150/200
2x 45° twin skin bends -
ø 150mm inner / ø 200mm outer
(height approx 322mm when installed)
F. AUBENDSET200/350
2x 45° twin skin bends -
ø 200mm inner / ø 250mm outer
(height approx 357mm when installed)
G. RFCOWL150/200
Connection ø 150mm, Outer ø 300mm
Y Piece Collector Box Assembly
1. Fit the AUFLUE150/200 ue pipes (A) onto the engine using rivets and sealant as required.
2. Fit the ø 150mm inner 45° bends (B2) but do not x in place yet.
3. Fit the ø 200mm outer 45° bends (B2) and leave loose.
4. Fit the two 150mm ø 460mm lengths of ue pipe (B3) to the ø 150mm inner connections of the Y piece
collector box (B1), then t and square up with the assembly from above. Then x all but the ø 200mm outer
45° bends (B2) in place.
5. Fit the two 200mm over-wraps (B4) over the ø 200mm outer 45° bends (B2) and the ø 200mm outer
connections of the Y piece collector box (B1) and x all in place.
6. Complete the ue to the termination point using AUFLUE200/250 (C) and RFCOWL200/250 (D) as required.
IMPORTANT
The minimum total ue height is 2.4 metres, providing the ue is direct without offsets.
Offsets can be used on ues over 3.6 metres in height.
B4
B3
C
B4
B3
B2
A
B2
B1
DG
E
A
F
A
C

Rinnai 14 RF1800 OIM
ENGINE INSTALLATION
Installation Options
The appliance can be installed in 4
different ways. The basic appliance is
supplied ready for installation as a fully
open appliance where the appliance is
open to the front and the glass sides are to
the right and back. It is also available as a
right hand appliance if required.
IMPORTANT
All appliances are shown with
the open side foremost and
glass panels to the back and
right hand end. Even with the
insulation kits installed, the
glass panels remain in place.
Rear & End Reector Kit Fitting
Reector kits are used to convert the
appliance for the Corner, Fully Enclosed
and Through Wall installation options
and require tting before the installation
continues. Unseen trims may need to
be cut away to make tting of the wall-
board easier and tidier, the trims to cut will
depend on the installation option.
IMPORTANT
Make sure that you have
clearly identied the panels
that are to be cut before
proceeding. It may be easier
to t the insulation panel
prior to making any cuts.
Be sure to remove all the
protective plastic from any
panels that will be covered
by the insulation panels
Framing Drawings
The diagrams on the following pages show the framing requirements for each installation type.
IMPORTANT
The ue and engine must be installed before the wall can be lined. Remember that both gas and
electricity are required within the cavity (see, “Gas & Electrical Supplies” on page 10).
The framing must be self supporting and not place any load on the engine.
The ue system must also be supported and not placing load on the engine.
The framing shown is indicative only is not intended to illustrate the construction method. The
installation shows one ue option (using the optional Y-Piece) but does not represent a complete
system.
The appliance should be installed on a solid platform.
Gas and power supply must enter through the left hand end of the engine when viewed from the
open side (the reverse is true for a right handed appliance).
The wall lining above the appliance must be non combustible for a minimum off 300 mm above
the top trim.
When engine installation is complete, the tting of cardboard from the packaging material to the
front anges on both sides of the appliance with some low-tac masking tape will help to protect
the appliance from dust, paint, etc. of subsequent construction drawing into the appliance or
marking the glass.
Fully Open Corner Unit
Fully Enclosed Through Wall
Cut here for
Through Wall and
Fully Enclosed Cut here for
Through Wall and
Corner Unit
DO NOT
CUT THE SEEN
TRIM PANELS
Align faces
and edges
Drill and rivet
in place (4 places)
Relieve corner of
unseen trim to allow wall
lining to fit behind the trim

Rinnai 15 RF1800 OIM
Fully Open
Corner
Refer to
note on
top fixing
There must be a clear
path for the flue to pass
Platform
recommended
Allow at least
20mm gap for
power and gas
over
Min
250
minimum recommended 1000
1000
cladding
Min
715
over
Min
Min463
Min
2183
cladding
468
322 Min
263Min
Y piece flue is
shown, an
alternative is to
run two flues
through to
termination.
There must be a clear
path for the flue to pass
Refer to
note on
top fixing
Platform
recommended
Allow at least
20mm gap for
power and gas
These sections must be fully
supported from above and
not place any load on the fire
Min
463
250
Minimum
Recommended 1000
min over
295
cladding
1000
715Min
Min
468over
cladding
2183Min
Y piece flue is
shown, an
alternative is to
run two flues
through to
termination.

Rinnai 16 RF1800 OIM
Fully Enclosed
Through Wall
There must be a clear
path for the flue to pass
Refer to
note on
top fixing
Platform
recommended
Allow at least
20mm gap for
power and gas
1000 minimum recommended
Min
Min 463
cladding
495Min
1000
over
Min
Min
715
Min250
322
2210
263min
Y piece flue is
shown, an
alternative is to
run two flues
through to
termination.
Refer to
note on
top fixing
Platform
recommended
Allow at least
20mm gap for
power and gas
This section must be fully
supported from above and
not place any load on the fire
2210Min
minimum
495Min
1000
1000
Min
250
recommended
Min
715
295 Min
over
cladding
There must be a clear
path for the flue to pass
Y piece flue is
shown, an
alternative is to
run two flues
through to
termination.

Rinnai 17 RF1800 OIM
TOP FIXING
In order to keep the top, unsupported end of the
engine in line with the framing above, a support
plate has been provided for xing to the completed
framing.
In some installations the support plate may not be
the most suitable solution. If this is the case then
use another seismic type strap to hold the engine
fast to the framing. Take care to make sure that the
wall cladding will line up with the inside edge of the
trim panel.
Shown here is the cut-out requirement for making
the support plate most effective.
WALL LINING
The wall lining above the top trim must be non-combustible for at least 300mm.
IMPORTANT
Seismic Restraint: There are 4 holes in the base of the engine to hold the appliance in place.
Make sure that the engine is correctly aligned with where the wall lining will nish before xing
the engine in place.
115Min
Support
Plate
21mm from cladding to
back of support plate
Wall Lining fits behind front edge of trim
It is recommended that the plaster coat does not
cover the front trim.
Trim
Wall Lining

Rinnai 18 RF1800 OIM
APPLIANCE GAS CONNECTION & COMMISSIONING
CAUTION
ISOLATE THE POWER AND GAS SUPPLIES BEFORE COMMENCING WORK ON THE APPLIANCE.
Once the engine has been installed and xed to the building the gas and electricity can be connected, however
some installers elect to leave this until the decorating has been completed before nalising the installation.
CAUTION
If commissioning is to be carried out after the decorating is completed, then leave the protective
plastic coverings in place and cover the front of the engine with cardboard and low-tack tape to
prevent plaster dust and debris from entering and damaging the appliance.
Refer to the diagram below for part identication.
Preparation
1. To gain access to the burner, power, and gas connections, rstly rotate the Reector Retainer upwards to
release the top of the End Reector and remove this reector.
2. Remove the Burner Cover by carefully lifting straight up.
3. Slide the Front Reector towards the gas control so as to be able to gain purchase on both ends of the
reector and remove it.
4. Remove the 2 screws holding the burner in place and slide the burner assembly forward to gain access to
the Rear Reector, slide the Rear Reector towards the gas control so as to be able to gain purchase on both
ends of the reector and remove it.
5. Push the burner assembly as far back as possible without crushing the gas supply hose or wires etc.
Burner
Pressure
Test Point
Inlet Pressure
Test Point
Injector
Sparker and
Flame Rod
Assembly
Pressure
Adjustment
Gas Inlet
Power
Connection
Reflector
Retainer
End
Reflector
Rear Reflector
Burner Fixing
Screws
Power
Plug
Earth Terminal
Spring Washer
and Nut
Power Connection Detail
Burner Cover
Front Reflector