
M-SERIES
THE NEXT GENERATION IN CONDENSING BOILERS
Look Inside
More Eciency For You
And Your Customers
Why the "M" Series? For maximum momentum. Using proven
technology, these boilers are designed to keep your work day
moving quickly and your customers happy.
THE ADVANTAGES
EASY
INSTALLATION
OPERATIONAL
PERFORMANCE
Venting
• 2 in. and 3 in. PVC/
CPVC/PP venting
• 2 in. / 4 in. and
3 in. / 5 in. concentric
venting for single
wall/roof penetration
• 3 in. to 2 in. adapters
included
• Room air approved
Turbo Fan
• Automatically adjusts
to venting installation
to ensure clean ecient
combustion
Exhaust
Intake
Zero Gas
Governor Valve
• Better perfomance at
lower gas pressures
and with 1/2 in.
gas line
High-Eciency
Stainless Steel
Heat Exchanger
• Designed for
extended operation
in Condensing Mode
• Self-cleaning design
• Minimal thermal
expansion
SERVICEABILITY
Modulating Pump
• Provides consistent
temperature for
water in the heating
loop
• Matches the gas
load for higher
gas and electrical
eciency
Condensate Trap
• Easy to remove and
clean (no tools
required)
Asymmetric Plate Heat
Exchanger
• Allow higher flow from
boiler for more Domestic
Hot Water output
Silencer
• Allows for ultra quiet
operation
Diverter Valve
• Domestic Hot Water
priority
• Controls the flow
between heating
system or DHW in
combi units
Domestic Hot Water
Flow Sensor
• Helps modulate boiler for
increased performance
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1

Benefits That Raise The Bar New Product Lineup
Rinnai M-Series boilers oer 3 distinct advantages above and beyond your average boiler.
HEAT ONLY (NG MODELS)
THE NEXT GENERATION IN CONDENSING BOILERS
Faster, Easier Installation
• Compact and lightweight design
• Convenient mounting bracket
• NPT threads for connection points
• More flexible venting options
• Simplified parameters for commissioning and setup
Ecient Heating
• More heating ouput
• More heat transfer for domestic hot water
• Consistently lower utility costs
• Modulation pump optimizes heat transfer to the home while
saving on electrical consumption
• Integrated bypass to ensure proper flow to the heat exchanger
• Quiet operation – comparable to the range of ambient noise in
a library
Simplified Service
• Simple control interface with large display
• Simplified parameters and menu navigation
• Easy to service
MODEL M060SN M090SN M120SN M160SN
MAX . INPUT HEATING (MBH)
MIN. INPU T (MBH) 17 (5.0 kW) 23. 5 (6.9 kW)
TURN DOWN RATIO 3.5:1 / 1.9:1 5.3:1 / 2.9:1 5.1:1 / 1.6:1 6.8:1 / 2.2:1
UNIT WEIGHT 64 lbs. (29 kg) 70 lbs. (32 kg)
60 (17.6 kW) 90 (26 .4 kW) 120 (35 .2 kW) 160 (46. 9 kW)
COMBI (NG MODELS)
MODEL MO60CN MO90CN M120CN M160CN
INCLUDED WITH ALL UNITS
Each Rinnai Condensing Gas
Boiler ships with:
MAX . INPUT HEATING (MBH)
MIN. INPU T (MBH) 17 (5.0 kW) 23.5 (6 .9 kW)
60 (17.6 kW) 90 (26 .4 kW) 120 (35 .2 kW) 160 (46. 9 kW)
• LP Field Conversion Kit
• Flue Adapters
• Outdoor Reset Sensor
• 1" NPT Adaptors (2)
• Temperature Pressure Gauge
• Pressure Relief Valve (PRV)
TU RND OWN R ATIO
MAX. OUTPUT DHW
UNIT WEIGHT 77 lbs. (35 kg) 84 lbs. (38 kg)
ADDITIONAL ACCESSORIES
PART NUMBER DESCRIPTION
803000023 PLUMBING KIT, M-SERIES BOILER
804000074 KIT, CONDENSATE NEUTRALIZER (ALL MODELS)
809000114 REFILL, CONDENSATE NEUTRALIZER (ALL MODELS)
808000025 AIR INTAKE FILTER (ALL MODELS)
809000024 BOILER TOOL KIT (ALL MODELS)
103000038 SCALECUTTER SYSTEM
103000039 SCALECUTTER REFILL CARTRIDGE
MIVK-T-LW PLUMBING ISOLATION VALVE KIT, COMPACT DESIGN, EASE IN FLUSHING
3.5:1 / 1.9:1 3.8:1 / 1.2:1 5.1:1 / 1.6:1 6.8:1 / 2.2:1
2.6 G PM @ 70° F ∆T
(9.8 L /MI N @ 39°
C ∆T)
4.2 G PM @ 70° F ∆T
(15 .8 L /MIN @ 39° C ∆T)
ScaleCutter System Condensate Neutralizer KitPlumbing Kit Air Intake Filter
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3

INSTALLATION & VENTING COMPONENTS
VENTING PARTS
2 in. VENTING FOR ROOM AIR AND TWIN PIPE
PART NUMBER IMAGE DESCRIPTION
222715NPP 1 2 in. CONDENSING FIXING CLIP METAL QTY 10 PP PLASTIC
223085NPP 2 2 in. CONDENSING WALL TERMINAL TWIN PIPE PP PLASTIC
222710NPP 3 2 in. CONDENSING 45 DEGREE ELBOW (20/ BOX) PP PLASTIC
222711NPP 4 2 in. CONDENSING 90 DEGREE ELBOW (20/ BOX) PP PLASTIC
222712NPP 5 2 in. CONDENSING VENT PIPE EXTENSION 39 in. (4/ BOX) PP PLASTIC
222714NPP 5 2 in. CONDENSING VENT PIPE EXTENSION 79 in. (4/ BOX) PP PLASTIC
INNER EXAUST
MATRIAL
OUTER INTAKE
MATERIAL
2 in. / 4 in. INSTALLATION VENTING COMPONENTS
PART NUMBER IMAGE DESCRIPTION
710202NPP 6 2 in. / 4 in. CONDENSING 90 DEGREE DIVERTER NOSE PP PLASTIC
710215NPP 7 2 in. / 4 in. CONDENSING 45 DEGREE DIVERTER NOSE PP PLASTIC
229011NPP 8 2 in. / 4 in. CONDENSING HORIZONTAL TERMINATION KIT 8.7 in. PP PLASTIC
229012NPP 8 2 in. / 4 in. CONDENSING HORIZONTAL TERMINATION KIT 12 in. PP PLASTIC
229013NPP 8 2 in. / 4 in. CONDENSING HORIZONTAL TERMINATION KIT 21 in. PP PLASTIC
229016NPP 9 2 in. / 4 in. CONDENSING 21 in. WALL TERM W/2 WALL PLATES PP PLASTIC
224356NPP 9 2 in. / 4 in. CONDENSING ROOF DISCHARGE TERM 20 in. ABOVE ROOF PP PLASTIC
229205NPP 10 2 in. / 4 in. CONDENSING 45 DEGREE ELBOW QTY 2 PP PLASTIC
229230NPP 11 2 in. / 4 in. CONDENSING 90 DEGREE ELBOW QTY 2 PP PLASTIC
229253NPP 12 2 in. / 4 in. CONDENSING HORIZONTAL STARTER ADAPTER PP PLASTIC
229308NPP 13 2 in. / 4 in. CONDENSING VENT PIPE EXTENSION 10 in. PP PLASTIC
229309NPP 13 2 in. / 4 in. CONDENSING VENT PIPE EXTENSION 19.5 in. PP PLASTIC
229310NPP 13 2 in. / 4 in. CONDENSING VENT PIPE EXTENSION 39 in. PP PLASTIC
227412NPP 14 2 in. / 4 in. CONDENSING VERTICAL STARTER ADAPTER PP PLASTIC
185348NPP 15 2 in. / 4 in. CONDENSING ROOF TERM EXTENSION KIT PP PLASTIC
INNER EXAUST
MATRIAL
OUTER INTAKE
MATERIAL
3 in. VENTING COMPONENTS
PART NUMBER IMAGE DESCRIPTION
196116PVC - 3 in. CONCENTRIC PVC PVC PVC
196985PVC - 3 in. LOW PROFILE PVC PVC PVC
INNER EXAUST
MATRIAL
OUTER INTAKE
MATERIAL
IPEX VENTING COMPONENTS
PART NUMBER IMAGE DESCRIPTION
196005PVC - IPEX 2 in. CONCENTRIC TERMINATION 2 x 16 PVC PVC
196105PVC - IPEX 2 in. CONCENTRIC TERMINATION 2 x 28 PVC PVC
196125PVC - IPEX 2 in. CONCENTRIC TERMINATION 2 x 40 PVC PVC
192984PVC - IPEX PVC LOW PROFILE TERMINATION 2 in. PVC PVC
INNER EXAUST
MATRIAL
OUTER INTAKE
MATERIAL
3 in. / 5 in. INSTALLATION VENTING COMPONENTS
1
PART
NUMBER IMAGE DESCRIPTION
223174PP 16 CONDENSING HORIZONTAL TERMINATION KIT 8.7" / 220.9 MM PP PLASTIC
2
3
4
5
223176PP 16 CONDENSING HORIZONTAL TERMINATION KIT 12" / 304.8 MM PP PLASTIC
223177PP 16 CONDENSING HORIZONTAL TERMINATION KIT 21" / 533.4 MM PP PLASTIC
223186PP 17 CONDENSING HORIZONTAL TERMINATION DIVERTER KIT 19" / 482.6 MM PP PLASTIC
184162PP 18 CONDENSING ROOF DISCHARGE TERMINATION SHORT (ABOVE ROOF) 38" / 965.2 MM PP PLASTIC
224047PP 19 CONDENSING RAISED HORIZONTAL TERMINATION KIT (SNORKEL) - PP PLASTIC
185344PP - ROOF TERMINATION EXTENSION KIT - PP PLASTIC
185346PP - CONDENSING TERMINATION EXTENSION - PP PLASTIC
185347PP - SEPARATION KIT - PP PLASTIC
187585PP - TWIN PIPE ADAPTER FOR USE W/ PVC/CPVC (SPECIAL ORDER ONLY) PP PLASTIC
224077PP 20 45-DEGREE ELBOW (QUANTITY OF 2) - PP PLASTIC
224078PP 21 90-DEGREE ELBOW - PP PLASTIC
224087PP 22 VENT PIPE EXTENSION 10"/ 254 MM PP PLASTIC
224079PP 22 VENT PIPE EXTENSION 19.5” / 495.3 MM PP PLASTIC
224080PP 22 VENT PIPE EXTENSION 39” / 990.6 MM PP PLASTIC
INNER
EXHAUST
MATERIAL
OUTER
INTAKE
MATERIAL
16
17
18
20
19
22
ADDITIONAL ACCESSORIES
PART NUMBER IMAGE DESCRIPTION
146141 23 ROOF FLASHING ASSEMBLY (FLAT ROOF)
6
8
9
10
7
189950 24 SHINGLE ROOF FLASHING (1/12 TO 6/12 PITCH; PLASTIC)
189951 24 SHINGLE ROOF FLASHING (6/12 TO 12/12 PITCH; PLASTIC)
189952 24 SHINGLE ROOF FLASHING (8/12 TO 16/12 PITCH; PLASTIC)
50171949 25 TILE/SHINGLE ROOF FLASHING (1/12 TO 6/12 PITCH; METAL)
50171961 25 TILE/SHINGLE ROOF FLASHING (6/12 TO 12/12 PITCH; METAL)
50171954 25 TILE/SHINGLE ROOF FLASHING (8/12 TO 16/12 PITCH; METAL)
242141 26 FLASHING FOR METAL ROOF
710342 27 RUBBER WALL PLATE (WHITE)
710602 27 RUBBER WALL PLATE (BLACK)
224045 28 THIMBLE (1 PIECE PER BOX)
169044 29 PIPE CLAMP
224097 30 METAL PASS THROUGH PLATE
224042 31 UNIVERSAL BUG GUARD
SUITABLE FOR USE
WITH PLASTIC AND
METAL COMPONENTS
21
23
24
25
26 27
REPLACEMENT KITS
11
13
12
15
14
PART NUMBER DESCRIPTION FITS MO DEL NO.
804000100 8K HR SERVICE KIT (M-60C/60S/90S) M-60C/60S/90S
804000101 FAN VENTURI KIT (M-60C/60S/90S) M-60C/60S/90S
804000102 FLAT PLATE HEX KIT (M-60C/60S/90S) M-60C/60S/90S
804000103 GAS VALVE KIT (M-SERIES) ALL MODELS
804000104 PUMP KIT (M-SERIES) ALL MODELS
804000105 PRIMARY HEX KIT (M-60C/60S/90S) M-60C/60S/90S
804000107 8K HR SERVICE KIT (M-90C/120C/160C/120S/160S) M-90C/120C/160C/120S/160S
804000108 FAN VENTURI KIT (M-90C/120C/160C/120S/160S) M-90C/120C/160C/120S/160S
804000109 FLATPLATE HEX KIT (M-90C/120C/160C/120S/160S) M-90C/120C/160C/120S/160S
804000110 PRIMARY HEX KIT (M-90C/120C/160C/120S/160S) M-90C/120C/160C/120S/160S
Termination Kits include elbow and rubber wall plate.
28 29
30
31
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endless
quality and support
100 years of
smart comfort
For nearly a century, Rinnai has been fiercely
committed to delivering a smarter kind of comfort.
With headquarters in Japan and a network of 20
subsidiaries and 86 sales oces in 13 countries, this
commitment has made us one of the world’s largest
gas appliance manufacturers. Our value-added
products continue to stay in step with the demands
of a changing world.
The highest
standards of quality
Rinnai employs more than 600 research
and development engineers, all focused on
uncompromising quality in design and manufacturing.
Advanced automation and precision assembly
processes have made our manufacturing facilities an
industry model for eciency. Throughout the world,
our standards for quality remain unsurpassed.
• Every product undergoes live testing
before shipping
• One of the few tankless water heater and boiler
manufacturers with its own state-of-the-art
Canadian Standards Association (CSA) Certified
Testing Laboratory, including CSA accredited
lab technicians
• All products have been approved by CSA and
adhere to the strict standards of the American
National Standards Institute (ANSI)
Learn more about Rinnai high-performance Tankless Water Heaters, Hybrid Water Heating Systems,
Boilers, Vent-Free Fan Convectors and EnergySaver® Direct Vent Wall Furnaces at:
rinnai.us | rinnai.ca
Rinnai America Corporation | 103 International Drive, Peachtree City, GA 30269
800.621.9419 | rinnai.us
©2018 Rinnai America Corporation. All Rights Reserved. Rinnai America Corporation continually
updates materials, and as such, content is subject to change without notice. Local, state, provincial,
federal and national fuel gas codes must be adhered to prior to and upon installation.
08/2018R-TR-WH-E-08r3