Rinnai M060S User manual

Rinnai M-Series Condensing Boiler Solo Manual
Central Heang Boiler
INSTALLATION AND OPERATION MANUAL
M-Series Condensing Boiler
Wall-Mounted, Gas-Fired Solo Boiler
Cered to ANSI Z21.13
and CSA 4.9
READ AND SAVE THIS MANUAL
If the informaon in these instrucons are not followed exactly, a re or
explosion may result causing property damage, personal injury, or loss of
life.
• Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any
other appliance.
• WHAT TO DO IF YOU SMELL GAS
− Do not try to light any appliance.
− Do not touch any electrical switch; do not use any phone in your building.
− Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s
instrucons.
− If you cannot reach your gas supplier, call the re department.
• Installaon and service must be performed by a qualied installer, service agency or the gas
supplier.
WARNING
MODELS
M060S
M090S
M120S
M160S

2 Rinnai M-Series Condensing Boiler Solo Manual
1. Welcome........................................................................................................................... 4
2. Safety................................................................................................................................ 5
2.1 Safety Symbols ...........................................................................................................................5
2.2 Safety Precauons......................................................................................................................5
3. About the Boiler................................................................................................................ 7
3.1 Front View ..................................................................................................................................7
3.2 Boom View...............................................................................................................................8
3.3 Components ...............................................................................................................................9
3.4 Specicaons............................................................................................................................10
3.5 Dimensions...............................................................................................................................11
3.6 Accessories...............................................................................................................................13
3.7 How to Remove the Front Panel..............................................................................................14
4. Installaon...................................................................................................................... 15
4.1 Installaon Guidelines..............................................................................................................15
4.2 What You’ll Need......................................................................................................................16
4.3 Items Included..........................................................................................................................17
4.4 Choose an Installaon Locaon ...............................................................................................18
4.5 Mount the Boiler to the Wall ...................................................................................................20
5. Venng ........................................................................................................................... 21
5.1 Guidelines.................................................................................................................................21
5.2 Venng Installaon Sequence..................................................................................................22
5.3 Terminaon Consideraons.....................................................................................................22
5.4 Venng Opons........................................................................................................................23
6. Gas Supply ...................................................................................................................... 43
6.1 Connect the Gas Supply............................................................................................................43
6.2 Gas Operang Instrucons.......................................................................................................45
6.3 Gas Pipe Sizing Reference Tables .............................................................................................46
7. CH System Piping............................................................................................................. 48
7.1 Guidelines.................................................................................................................................48
7.2 Instrucons...............................................................................................................................48
7.3 Common CH Components........................................................................................................49
7.4 Piping Diagram for a Basic CH System......................................................................................51
7.5 Hydraulic Separaon ................................................................................................................52
7.6 Connect the Pressure Relief Valves (DHW and CH)..................................................................53
7.7 Connect the Condensate Drain Line.........................................................................................54
8. DHW System Piping with Indirect Tank............................................................................. 56
8.1 Guidelines.................................................................................................................................56
8.2 Indirect Tank Control Opons..................................................................................................56

Rinnai M-Series Condensing Boiler Solo Manual 3
9. Power Supply .................................................................................................................. 57
9.1 Guidelines.................................................................................................................................57
9.2 Electrical Connecons ..............................................................................................................58
9.3 Post-Power Supply Connecon Checklist.................................................................................58
10. Commissioning .............................................................................................................. 59
10.1 Safety Precauons..................................................................................................................59
10.2 Instrucons.............................................................................................................................59
10.3 Air Purge Process....................................................................................................................62
11. Post-Installaon Checklist ............................................................................................. 63
12. Operaon...................................................................................................................... 65
12.1 Start-Up Informaon..............................................................................................................65
12.2 Control Panel..........................................................................................................................66
12.3 Basic Operaon Sengs.........................................................................................................69
12.4 Parameter Sengs.................................................................................................................71
12.5 Outdoor Reset Control ...........................................................................................................76
12.6 Diagnosc Codes ....................................................................................................................79
12.7 Forced Hi/Low Fire Modes .....................................................................................................83
12.8 Freeze Protecon ...................................................................................................................84
13. Maintenance ................................................................................................................. 85
13.1 Owner Maintenance...............................................................................................................85
13.2 Licensed Professional Maintenance.......................................................................................86
13.3 Test the Ignion Safety Shut O Device.................................................................................88
14. Appendices.................................................................................................................... 89
14.1 Approved Cleaners, Inhibitors and Anfreezes.....................................................................89
14.2 Flush the CH Plumbing System..............................................................................................90
14.3 Boiler Parts ............................................................................................................................91
14.4 System Applicaon Examples................................................................................................98
14.5 Gas Conversion.....................................................................................................................104
14.6 Wiring Diagram.....................................................................................................................108
14.7 Ladder Diagram ....................................................................................................................109
14.8 CH Pressure Drop and Flow Curve.......................................................................................110
14.9 Resistance/Temperature Table for Sensors ........................................................................111
14.10 Remove a Boiler from a Common Vent System.................................................................112
14.11 Massachuses State Gas Regulaons................................................................................113
14.12 Warranty ............................................................................................................................114

4 Rinnai M-Series Condensing Boiler Solo Manual
Thank you for purchasing a Rinnai Condensing
Boiler. Before installing and operang this
boiler, be sure to read these instrucons
completely and carefully to familiarize yourself
with the boiler’s features and funconality.
• You must read the enre manual to
properly operate the boiler.
• Keep this manual for future reference.
• As when using any appliance generang
heat, there are certain safety precauons
you should follow. See secon “2.2 Safety
Precauons” for detailed safety
precauons.
• Be sure your boiler is installed by a licensed
installer.
• If installing in the state of Massachuses,
read secon “14.12 Massachuses State
Gas Regulaons” in this manual.
ANSI American Naonal Standards
Instute
Btu Brish Thermal Unit
CH Central Heang
SOLO Heang only boiler capable of
DHW through an indirect tank
DHW Domesc Hot Water
GPM Gallons per minute
LP Liquid Propane
LWCO Low Water Cut O
NG Natural Gas
PP Polypropylene
PRV Pressure Relief Valve
PSI Pounds per square inch
W.C. Inches water column
For Your Records
Dealer Name:
Located on le
side of unit
1
• A trained and qualied professional
must install the boiler, inspect it, and
leak test it before use. The warranty
will be voided due to any improper
installaon.
• The trained and qualied professional
should have skills such as:
− Gas line sizing
− Connecng gas lines, water lines,
valves, and electricity
− Knowledge of applicable naonal,
state, and local codes
− Installing venng through a wall
or roof
− Training in installaon of
condensing boilers. Training on
Rinnai M-Series Condensing
Boilers is accessible at
www.trainingevents.rinnai.us.
• Read all instrucons in this manual
before installing the boiler. The boiler
must be installed according to the
exact instrucons in this manual.
• Proper installaon is the responsibility
of the installer.
• When installaon is complete, leave
this manual with the boiler or give the
manual directly to the consumer.
Following is a list of common acronyms and
abbreviaons used in this manual:
Dealer Phone:
Purchase Date:
Serial #:

Rinnai M-Series Condensing Boiler Solo Manual 5
Indicates an imminently hazardous
situaon which, if not avoided, will
result in personal injury or death.
Indicates a potenally hazardous
situaon which, if not avoided, could
result in personal injury or death.
Indicates a potenally hazardous situaon
which, if not avoided, could result in minor
or moderate injury. It may also be used to
alert against unsafe pracces.
DANGER
WARNING
This manual contains the following important
safety symbols. Always read and obey all
safety messages.
The following precauons apply to the
installer and consumer. Read and follow all
instrucons in this secon.
• Before operang, smell all around the
appliance area for gas. Be sure to smell
next to the oor because some gas is
heavier than air and will sele on the
oor.
• Keep the area around the appliance
clear and free from combusble
materials, gasoline, and other
ammable vapors and liquids.
• Do not store or use gasoline or other
ammable vapors and liquids in the
vicinity of this or any other appliance.
• Combusble construcon refers to
adjacent walls and ceiling and should
not be confused with combusble or
ammable products and materials.
Combusble and/or ammable
products and materials should never be
stored in the vicinity of this or any gas
appliance.
• Always check the water temperature
before entering a shower or bath.
2
• If the informaon in these instrucons
is not followed exactly, a re or
explosion may result causing property
damage, personal injury, or death.
• Do not store or use gasoline or other
ammable vapors and liquids in the
vicinity of this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS:
− Do not try to light any appliance.
− Do not touch any electrical
switch; do not use any phone in
your building.
− Immediately call your gas
supplier from a neighbor’s
phone. Follow the gas supplier’s
instrucons.
− If you cannot reach your gas
supplier, call the re department.
• Installaon and service must be
performed by a qualied installer,
service agency or the gas supplier.
• The warning signs in this manual are
here to prevent injury to you and
others. Please follow them explicitly.
Safety alert symbol. Alerts you
to potenal hazards that can
kill or hurt you and others.
WARNING
CAUTION

6 Rinnai M-Series Condensing Boiler Solo Manual
WARNING
This product can expose you to
chemicals including Nickel compounds,
Lead and Lead compounds which are
known to the State of California to
cause cancer, birth defects or other
reproducve harm. For more
informaon, visit
www.P65Warnings.ca.gov.
• Flammable liquids such as cleaning
solvents, aerosols, paint thinners,
adhesives, gasoline and propane must be
handled and stored with extreme care.
These ammable liquids emit ammable
vapors and when exposed to an ignion
source can result in a re hazard or
explosion. Flammable liquids should not be
used or stored in the vicinity of this or any
other gas appliance.
• DO NOT operate the boiler without the
front panel installed. The front panel
should only be removed for service/
maintenance or replacing internal
components.
• BURN HAZARD. Hot exhaust and vent may
cause serious burns. Keep away from the
boiler. Keep small children and animals
away from the boiler.
• Heang supply and return pipes leaving
the boiler can be hot to touch.
• Install the vent system per local and
naonal codes.
• Do not install this boiler above 10,200 
(3,109 m).
• Do not obstruct combuson air to the
boiler.
• Rinnai recommends that every home have
a carbon monoxide (CO) alarm in the
hallway near bedrooms in each sleeping
area. Check baeries monthly and replace
them annually.
• California law requires the following
Proposion 65 warning to be provided:
• Do not use this appliance if any part has
been under water. Immediately call a
licensed professional to inspect the
appliance and replace any part of the
control system and any manual gas control
valve which has been under water.
• Do not use substute materials. Use only
parts cered for the appliance.
• Should overheang occur or the gas
supply fail to shut o, turn o the manual
gas control valve to the appliance.
• It is strongly recommended that you use a
trained and qualied professional who has
aended a Rinnai installaon training class
to adjust parameter sengs.
• Do not use an extension cord or adapter
plug with this appliance.
• Any alteraon to the appliance or its
controls can be dangerous and will void
the warranty.
• To protect yourself from harm, before
performing maintenance:
− Turn o the electrical power supply by
unplugging the power cord or by
turning o the electricity at the circuit
breaker. (The boiler controller does
not control the electrical power.)
− Turn o the gas at the gas control,
usually located immediately below the
boiler.
− Turn o the incoming water supply.
Turning o the water for the central
heang system is done at the boiler
system lling staon shut-o valve or
the main water supply to the building.
− Use only your hand to turn the manual
gas control valve. Never use tools. If
the manual gas control valve will not
turn by hand, do not try to repair it;
call a trained and qualied
professional. Force or aempted
repair may result in a re or explosion.
• Proper venng is required for the safe
operaon of this appliance. Failure to
properly vent this appliance can result in
death, personal injury and/or property
damage.

Rinnai M-Series Condensing Boiler Solo Manual 7
The M-Series Condensing Boiler is a wall-mounted, gas-red boiler designed to providing heang
and domesc hot water.
For complete boiler informaon, refer to the “Rinnai M-Series Condensing Boiler Installaon
Manual” supplied with the boiler, or visit rinnai.us.
Topics in this secon
• Front View
• Boom View
• Components
• Specicaons
• Dimensions
• Accessories
• How to Remove the Front Panel
3
Controller
(front cover
removed)
Vent Connecons
Piping Connecons (visible
below boiler)

8 Rinnai M-Series Condensing Boiler Solo Manual
Gas
Central
Heang
Supply
Central
Heang
Return
Supply to CH System
Return from CH System
Primary-Secondary Heang Kit
CH Pressure Relief Valve (supplied
with boiler)
CH Supply
Condensate Drain
Gas Supply
CH Return
Central Heang Temperature
Pressure Gauge (supplied with
boiler)
Gas Shut O Valve
Boiler Pump
All items are eld-supplied unless otherwise noted.

Rinnai M-Series Condensing Boiler Solo Manual 9
❶
❷
❸
❹
❺
❻
❼
Located
behind
#6 (Silencer)
❽
❾
❿
⓫
⓬
⓭
1iCon Heat Exchanger
2Burner Hood with Burner Cassee
3Fan with Integrated Venturi
4Gas Valve
5Ignion Unit
6Silencer
7Condensate Tray
8Flue Gas Exhaust/Air Intake with
Measuring Points
9Automac De-aerator
10 Control Panel
11 Pressure Sensor
12 Modulang Pump
13 Condensate Trap
Located
behind
#6 (Silencer)
Exhaust Intake

10 Rinnai M-Series Condensing Boiler Solo Manual
1 Minimum ow may vary slightly depending on the temperature seng and the inlet water
temperature. Minimum acvaon ow is 0.4 GPM (1.5 L/min).
2 The maximum gas supply pressure must not exceed the value specied by the manufacturer.
Rinnai products are connually being updated and improved; therefore, specicaons are subject
to change without prior noce.
Model M060S M090S M120S M160S
Dimensions - w, h, d 17 in. x 28 in. x 10 in. (439 mm x 699 mm x 264 mm)
Weight 64 lb (29 kg) 70 lb (32 kg)
Appliance Type Wall-Mounted, Gas-Fired Solo Boiler
Installaon Type Indoor
Ignion System Direct Electronic Ignion
Heat Exchanger Type iCon1 iCon2
Heat Exchanger Surface Area 7.3 sq  11.8 sq 
Temperature Seng (Min - Max) 68°F - 185°F (20°C - 85°C)
Water Content 1 Gallon
3.8 Liters 1 Gallon 3.8 Liters 1.4 Gallons 5.2 Liters 1.4 Gallons 5.2 Liters
Gas
Consumpon
(Btu/h)
Minimum NG: 17,000
LP: 31,500 NG: 23,500 LP: 73,500
Maximum 60,000 90,000 120,000 160,000
Water Supply
Pressure
Central Heang Minimum: 14 PSI Maximum: 45 PSI
Pressure Relief
Valve 30 PSI
Pump Model UPER 15-78
Sound Level 39 dB 42 dB 48 dB 54 dB
Electrical Data
Normal 155 W 177 W 164 W 191 W
Standby 3.5 W
Max Current 1.62 Amps 1.8 Amps 1.67 Amps 1.97 Amps
Fuse 5 Amps
Gas Supply
Pressure
Natural Gas 3.0 in. - 10.5 in. W.C.
Propane 8.0 in. - 13.5 in. W.C.
Electric Connecons AC 120 Volts, 60Hz.
Energy Star Qualied Recognized as the Most Ecient of ENERGY STAR®
Cercaons ANSI Z21.13, CSA 4.9

Rinnai M-Series Condensing Boiler Solo Manual 11
Measurements: in. (mm)
Vent Top Connecons: 3 in. (80 mm) PP, 3 in. PVC, 3/5 in. Concentric, 2 in. (60 mm) PP, 2 in. PVC

12 Rinnai M-Series Condensing Boiler Solo Manual
Connecon Connecon Size with Provided
Adapters
Gas 3/4 in. NPT
CH In (CH Return) 1 in. NPT
CH Out (CH Supply) 1 in. NPT
Central Heang
Supply
Gas
Central Heang
Return

Rinnai M-Series Condensing Boiler Solo Manual 13
The following oponal accessories are available for the Rinnai M-Series Condensing Boiler.
CONDENSATE NEUTRALIZER
Neutralizes the condensate
generated by the boiler.
SCALECUTTER
Filters and reduces the amount of
scale entering the boiler allowing
for greater boiler longevity.
SCALECUTTER REFILL CARTRIDGE
Rell cartridge for the ScaleCuer
lter assembly.
BOILER TOOLKIT
PN 809000024
Set of specic tools recommended
for boiler service.
Primary Secondary Heang Kit
PN 803000023

14 Rinnai M-Series Condensing Boiler Solo Manual
Using a Philips head screwdriver, remove
the 2 screws from the top of the boiler.
You Will Need:
• Philips head screwdriver
2
3
1
Li the tab slightly above the peg.
To remove, carefully li the panel up
and o to release it from the boiler.
IMPORTANT
Do not operate the boiler without the front panel installed. The front panel should
only be removed for service/maintenance or replacing internal components.
TIP
Be careful not to lose the screws. You’ll need
them when reinstalling the front cover.

Rinnai M-Series Condensing Boiler Solo Manual 15
4
THIS SECTION IS INTENDED
FOR THE INSTALLER
Installer qualicaons: A trained and qualied
professional must install the appliance, inspect
it, and leak test the boiler before use. The
warranty will be voided due to any improper
installaon. The trained and qualied
professional should have skills such as: Gas
sizing; Connecng gas lines, water lines, valves,
and electricity; Knowledge of applicable
naonal, state, and local codes; Installing
venng through a wall or roof; and training in
installaon of condensing boilers. Training for
Rinnai Condensing Boilers is accessible online
at www.trainingevents.rinnai.us.
Topics in this secon
• Installaon Guidelines
• What You’ll Need
• Items Included
• Choose an Installaon Locaon
• Mount the Boiler to the Wall
• Fill the Condensate Collector
• This boiler is cered for installaon in
residenal and commercial applicaons.
• This boiler is suitable for combinaon water
heang through an indirect tank and central
heang.
• The installaon must conform with local
codes or, in the absence of local codes, with
the Naonal Fuel Gas Code, ANSI Z223.1/
NFPA 54, or the Natural Gas and Propane
Installaon Code, CSA B149.1. If installed in
a manufactured home, the installaon must
conform with the Manufactured Home
Construcon and Safety Standard, Title 24
CFR, Part 3280 and/or CAN/SCA Z240 MH
Series, Mobile Homes.
• The appliance, when installed, must be
electrically grounded in accordance with
local codes or, in the absence of local
codes, with the Naonal Electrical Code,
ANSI/NFPA 70, or the Canadian
Electrical Code, CSA C22.1.
• The appliance and its main gas valve
must be disconnected from the gas
supply piping system during any
pressure tesng of that system at test
pressures in excess of 1/2 psi (3.5 kPa)
(13.84 in W.C.). For system tesng at
pressures less than or equal to 1/2 psi
(3.5 kPa) (13.84 in W.C.) the appliance
must be isolated from the gas supply
piping by closing its individual manual
shuto valve.
• You must follow the installaon
instrucons and those in secon
“5. Venng” for adequate combuson
air and exhaust.
• Should overheang occur or the gas
supply fail to shut o, turn o the
manual gas control valve to the
appliance.
• Combuson air must be free of
chemicals, such as chlorine or bleach,
that produce fumes. These fumes can
damage components and reduce the life
of your appliance.
• Where required by the authority having
jurisdicon, the installaon must comply
with the Standard for Controls and
Safety Devices for Automacally Fired
Boilers, ANSI/ASME CSD-1.

16 Rinnai M-Series Condensing Boiler Solo Manual
DO NOT install the boiler in an area
where water leakage of the unit or
connecons will result in damage to
the area adjacent to the appliance
or to lower oors of the structure.
When such locaons cannot be
avoided, it is required that a
suitable drain pan, adequately
drained, be installed under the
boiler. The pan must not restrict
combuson air ow.
DO NOT install the boiler in an area
with negave air pressure.
DO NOT obstruct the ow of
combuson and venlaon air.
DO NOT use substute parts that
are not authorized for this boiler.
DO NOT install the boiler on
carpeng.
DO NOT
Gather the recommended tools and parts
before starng installaon.
Items Needed
• Low loss header or closely spaced
tee
• Expansion tank for a closed heang
system
• CH System Air Separator
• Standard tools for central heang,
gas ng, plumbing and electrical
wiring.
•Combuson analyzer (intended for
use with condensing boilers)
• Digital manometer capable of
reading both posive and negave
pressure
• Digital mulmeter capable of
reading microamps
• pH digital meter or test strips
• For wall mounng bracket
installaon:
− Level
− Screws (use appropriate screws
for type of wall construcon)
Other Items You May Need
• Hand truck with fastening belt
• Boiler toolkit (oponal accessory for
boiler service. See secon “3.6
Accessories” for more informaon.)
• Ensure the wall is of sucient
strength to support the weight of the
boiler, piping and any other
components needed for installaon;
if it is not, please reinforce the wall as
appropriate.
• Operang limits of the boiler:
Maximum boiler set
point temperature: 185°F (85°C)
Maximum operang
pressure: 45 psi (3.1 bar)
Maximum allowable
working temperature
ASME:
210°F (99°C)
Maximum allowable
working pressure
ASME:
45 psi (3.1 bar)

Rinnai M-Series Condensing Boiler Solo Manual 17
Carefully unpack your boiler system and verify the following contents are included. If any items are
damaged or missing, contact your local dealer/distributor. Do not aempt to use any item that
appears damaged.
RINNAI CONDENSING BOILER
Pump
Integrated
Items
Refer to secon
“3.3 Components”
for a complete list of
integrated parts.
Vent top with integrated
3 in. PP (80 mm)
Connecons
DOCUMENTATION
• Installaon and Operaon
Manual (this manual)
• User Manual
• ISCL
• Conversion Manual
LIQUID PROPANE FIELD CONVERSION KIT
This boiler is congured for Natural Gas only. Use this kit to
convert to Propane Gas if needed. Contents include:
CONVERSION
MANUAL
EEPROM
KEY CONVERSION
RATING PLATE
LIQUID PROPANE
RESTRICTOR
VENT ADAPTERS
3/5 in. Concentric
2 in. PVC/PP
Reducer (QTY 2)
3 in. PVC
(QTY 2)
WALL MOUNTING
BRACKET
30 PSI PRESSURE
RELIEF VALVE
For Central
Heang Systems
OUTDOOR
TEMPERATURE SENSOR
CENTRAL HEATING
TEMPERATURE
PRESSURE GAUGE

18 Rinnai M-Series Condensing Boiler Solo Manual
Contaminant Maximum Level
Total Hardness Up to 200 mg/L
Aluminum * Up to 0.2 mg/L
Chlorides * Up to 250 mg/L
Copper * Up to 1.0 mg/L
Dissolved Carbon Dioxide
(CO2) Up to 15.0 mg/L
Iron * Up to 0.3 mg/L
Manganese * Up to 0.05 mg/L
pH * 6.5 to 8.5
TDS (Total Dissolved
Solids) * Up to 500 mg/L
Zinc * Up to 5 mg/L
Consideraon of care for your boiler should
include evaluaon of water quality.
• The water must be potable, free of
corrosive chemicals, sand, dirt, or other
contaminants.
• It is up to the installer to ensure the water
does not contain corrosive chemicals or
elements that can aect or damage the
boiler.
• Water that contains chemicals exceeding
the levels below can damage the boiler.
* Source: Part 143 Naonal Secondary
Drinking Water Regulaons
When choosing an installaon locaon, you
must ensure that clearances will be met and
that the vent length will be within required
limits. Consider the installaon environment,
water quality, and need for freeze protecon.
Requirements for the gas line, water lines,
electrical connecon, and condensate disposal
can be found in their respecve installaon
secons in this manual.
This secon provides informaon on the
importance of water quality to the Rinnai
Condensing Boiler. The informaon is
intended to serve as general guidelines only
and is not a complete list of water quality
guidelines.
• Unsuitable heang system water can
cause the formaon of scale or sludge,
which aects system eciency. It can also
cause corrosion and reduce life of the
heat exchanger.
• Never use water that has been treated by
a reverse osmosis, deionized, or dislled
water to soen the water to ll the
heang system.
• Oxygen permeable or rubber tubing is not
permied in the heang system unless it
is separated from the boiler by a plate
heat exchanger. Boiler warranty may be
voided if connected directly to CH
systems that include this tubing.
• Thoroughly ush the system prior to
lling. While ushing, isolate the boiler.
• Do not introduce any system cleaner into
the boiler. Flush the system thoroughly to
remove all system cleaner before lling
the boiler with water.
• When freeze protecon of the heang
system is desired, only use Rinnai-
approved anfreezes. The allowed
maximum concentraon is 40%.
• Reference secon “14.1 Approved
Cleaners, Inhibitors and Anfreezes” in
the Appendix for an approved list of
system cleaners, inhibitors, and
anfreezes.
IMPORTANT
Replacement of components due to
water quality damage is not covered by
the warranty.

Rinnai M-Series Condensing Boiler Solo Manual 19
Use this checklist to ensure you have selected the correct locaon for the boiler.
Air surrounding the boiler, venng, and vent terminaon(s) is used for combuson and must be
free of any compounds that cause corrosion of internal components. These include corrosive
compounds that are found in aerosol sprays, detergents, bleaches, cleaning solvents, oil based
paints/varnishes, and refrigerants. The air in beauty shops, dry cleaning stores, photo processing
labs, and storage areas for pool supplies oen contains these compounds. The boiler, venng, and
vent terminaon(s) should not be installed in any areas where the air may contain these corrosive
compounds.
Locaon Clearance
Top 2 in. (51 mm)
0 in. from vent components
Boom (Ground) 12 in. (305 mm)
Front 6 in. (152 mm)
Clearance for servicing is
24 in. (610 mm) in front
of boiler
Back 0 in.
Sides (Le and Right) 2 in. (51 mm)
Vent 0 in.
□The boiler is not exposed to corrosive compounds in the air.
□The boiler locaon complies with the required clearances.
□The planned combuson air and exhaust terminaon locaons meet the required clearances.
□The water supply does not contain chemicals or exceed total hardness that will damage the
heat exchanger.
□A standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet or other 120 VAC, 60 Hz
source is available.
□The installaon must conform with local codes or, in the absence of local codes, with the
Naonal Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installaon
Code, CSA B149.1.
Top
Boom
WALL
Front
2 in. (51 mm)
Minimum
12 in. (305 mm)
Minimum
2 in. (51 mm)
Minimum
Right image is not to scale and is for illustraon
purposes only.
Side

20 Rinnai M-Series Condensing Boiler Solo Manual
Supplied by Installer:
• Level
• Four screws for mounng bracket
installaon
• Screws for top and boom bracket
installaon
Use appropriate screws for type of
wall construcon.
Hold the wall mounng bracket up
against the wall and use a level to
make sure the bracket is even. Proper
operaon requires the boiler to be
level.
You Will Need:
• Rinnai Condensing Boiler
• Wall Mounng Bracket
• Boiler Mounng Template
Insert the mounng lip of the boiler onto
the wall mounng bracket. Make sure the
wall mounng bracket is aached to the
wall and can hold the weight of the boiler
before you fully let go.
Instrucons:
Wall Mounng Bracket
Level
Use the appropriate screws for the wall
construcon to secure the mounng
bracket to the wall (use any of the
screw holes in the mounng bracket).
Assembled view
Boiler Mounng Template