rinnai.us 1-800-621-9419 INSTALLATION AND OPERATION MANUAL M-Series Condensing Boiler Wall-Mounted, Gas-Fired Combi Boiler Central Heating and Domestic Hot Water MODELS M060C M090C M120C Certified to ANSI Z21.13 and CSA 4.9 WARNING • • • If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Contents 1 Welcome ........................................................ 3 8 Power Supply ................................................ 52 2 Safety ............................................................. 4 Guidelines ......................................................... 52 Electrical Connections....................................... 53 Post-Power Supply Connection Checklist ......... 53 Safety Symbols .................................................... 4 Safety Precautions.............
1 Welcome Thank you for purchasing a Rinnai M-Series Condensing Boiler. Before installing and operating this boiler, be sure to read these instructions completely and carefully to familiarize yourself with the boiler’s features and functionality. To The Consumer • • • • • You must read the entire manual to properly operate the boiler and to have regular maintenance performed. Keep this manual for future reference.
2 Safety Topics in this section • Safety Symbols Safety Precautions • WARNING • If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death. • Do not store or use gasoline or other flammable 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.
Safety Precautions The following precautions apply to the installer and consumer. Read and follow all instructions in this section. • Before operating, smell all around the appliance • Do not use an extension cord or adapter plug with this area for gas. Be sure to smell next to the floor appliance. because some gas is heavier than air and will settle • Any alteration to the appliance or its controls can be on the floor. dangerous and will void the warranty.
3 About the Boiler Topics in this section • • • • • Components Specifications Dimensions Accessories How to Remove the Front Panel Components Exhaust Intake ❽ ❷ ❹ ❸ ❾ ❺ ❶ ⓫ Located behind #6 (Silencer) ❻ ❼ ❿ Located behind #6 (Silencer) ⓭ ⓬ ⓰ 1 2 3 4 5 6 7 8 6 iCon Heat Exchanger Burner Hood with Burner Cassette Fan with Integrated Venturi Gas Valve Ignition Unit Silencer Condensate Tray Flue Gas Exhaust/Air Intake with Measuring Points 9 10 11 12 Automatic De-aerator Control Panel Pressure
Specifications M060C Model Dimensions - w, h, d M090C 17 in. x 28 in. x 10 in. Weight M120C (439 mm x 699 mm x 264 mm) 77 lb (35 kg) 83.6 lb (38 kg) Appliance Type Wall-Mounted, Gas-Fired Combi Boiler Installation Type Indoor Ignition System Direct Electronic Ignition Heat Exchanger Type Heat Exchanger Surface Area Gas Consumption (Btu/h) Temperature Setting Minimum Maximum (Central Heating) Maximum (DHW) iCon2 7.3 sq ft NG: 17,000 LP: 31,500 60,000 11.
Dimensions Measurements: in.
Accessories The following optional accessories are available for the Rinnai M-Series Condensing Boiler. For questions, or to purchase an accessory, contact your local Rinnai dealer/distributor or call Rinnai Customer Care at 1-800-621-9419. CONDENSATE NEUTRALIZER Neutralizes the condensate generated by the boiler. BOILER TOOLKIT SCALECUTTER Filters and reduces the amount of scale entering the boiler allowing for greater boiler longevity.
How to Remove the Front Panel 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. You Will Need: • 1 Philips head screwdriver Using a Philips head screwdriver, remove the 2 screws from the top of the boiler. TIP Be careful not to lose the screws. You’ll need them when reinstalling the front cover. 2 Lift the tab slightly above the peg.
4 Installation Topics in this section • • • • • Installation Overview Installation Guidelines Unpack the Boiler Choose an Installation Location Mount the Boiler to the Wall THIS SECTION IS INTENDED FOR THE INSTALLER Installer qualifications: A trained and qualified professional must install the appliance, inspect it, and leak test the boiler before use. The warranty will be voided due to any improper installation.
Installation Guidelines • This boiler is certified for installation in residential and commercial applications. • This boiler is suitable for combination water heating and central heating. • The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1.
Unpack the Boiler Items Included What You’ll Need Carefully unpack your boiler system and verify the following contents are included. Gather the recommended tools and parts before starting installation. If any items are damaged or missing, contact your local dealer/distributor or call Rinnai Customer Care at 1-800621-9419. Do not attempt to use any item that appears damaged. Items included with boiler package: Tools Needed • Standard tools for central heating, gas fitting and plumbing.
Choose an Installation Location • Unsuitable heating system water can cause the formation of scale or sludge, which affects system efficiency. 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 distilled water to soften the water to fill the heating system.
Environment Air surrounding the boiler, venting, and vent termination(s) is used for combustion 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 often contains these compounds.
Mount the Boiler to the Wall You Will Need • • 1 Supplied by Installer • • Rinnai Condensing Boiler Wall Mounting Bracket Hold the wall mounting bracket up against the wall and use a level to make sure the bracket is even. 2 Proper operation requires the boiler to be level.
5 Venting Topics in this section • • • • Venting Guidelines Venting Installation Sequence Termination Considerations Venting Options Venting Guidelines • M-Series boilers can be installed as direct vent or non-direct vent applications. • When installed as Direct Vent, refer to the following section for a complete list of approved vent manufacturers and products: Venting Options → Direct Vent: Approved Vent Manufacturers and Products.
Venting Installation Sequence 1. Install the boiler. 2. Determine the termination method—horizontal or vertical, concentric, or twin pipes, etc. 3. Determine proper location for wall or roof penetration for each termination. 4. Install termination assembly as described in this manual or in the vent manufacturer’s installation instructions. 5. Install air and vent piping from boiler to termination. 6. Slope horizontal exhaust run towards the boiler 1/4 in per foot.
Venting Options Two venting options are available: Direct Vent and Room Air. Option 1 Direct Vent (Concentric and Twin Pipe) See Direct Vent section for complete details. Twin Pipe Concentric Pipe Combustion air and exhaust vent directly through a single concentric connection. Hot exhaust exits through the interior tube, while combustion air enters through the outer layer. Combustion air and exhaust vent directly through separate penetrations.
Direct Vent: Approved Vent Manufacturers and Products Following is a list of vent components and terminations for Direct Vent installations (concentric and twin pipe). Install the correct venting for your model according to the venting manufacturer’s instructions and the guidelines below. The information below is correct at time of publication and is subject to change without notice. Contact the vent manufacturer for questions related to the vent system, products, part numbers and instructions.
Equivalent Length (ft) Vertical Horizontal Diagram Product Description Manufacturer Part Number Manufacturer 2 in./4 in. CONCENTRIC VENT TERMINATIONS (Continued) ROYAL 52CVKGVS6502 PVC Concentric Vent Kit 2 in. x 16 in. 52CVKGVS6502-28 PVC Concentric Vent Kit 2 in. x 28 in. CENTROTHERM 52CVKGVS6502-40 PVC Concentric Vent Kit 2 in. x 40 in. ICRT2439 20 20 20 2 in. x 4 in. Concentric Roof Termination 20 DURAVENT 2PPS-VKL/VK-TCL 2 in. x 4 in.
Equivalent Length (ft) Vertical Horizontal Diagram Product Description Manufacturer Manufacturer Part Number 3 in./5 in. CONCENTRIC VENT TERMINATIONS UBBINK 3 in./5 in. CONCENTRIC VENT TERMINATIONS 223174PP 3/5 Condensing Horizontal Termination Kit 8.7 in. 223176PP 3/5 Condensing Horizontal Termination Kit 12 in. 223177PP 3/5 Condensing Horizontal Termination Kit 21 in. 223186PP 3/5 Condensing Horizontal Diverter Termination Kit 19 in.
Equivalent Length (ft) Vertical Horizontal Diagram Product Description Manufacturer Part Number Manufacturer 3CGRLSV Vertical Adapter 3CGRLSH Horizontal Adapter 3CGRVT Vertical Termination 3CGRHT Horizontal Termination 3PPS-VKL/VK-TCL 3 in. x 5 in. Vertical Termination Cap Kit-Concentric 3PPS-HKL 190388 ECCO 1 6 5 DURAVENT METAL-FAB 3 in./5 in. CONCENTRIC VENT TERMINATIONS (Continued) 190395 16 20 3 in. x 5 in. Horizontal Termination Kit-Concentric 20 3 in. x 5 in.
Equivalent Length (ft) Vertical Horizontal Diagram Product Description Manufacturer Part Number Manufacturer 2 in. TWIN PIPE TERMINATIONS IPEX DURAVENT CENTROTHERM 2 in. TWIN PIPE TERMINATIONS ISELL0287UV 2 in. 87° Long PPS-UV ISTT0220 2 in. Termination Tee ISLPT0202 2 in. Low Profile Wall Termination 2PPS-HTPL 2 in. Twin Pipe Termination 2PPS-HSTL 2 in. Single Horizontal Termination 2PPS-TBL 2 in.
Equivalent Length (ft) Vertical Horizontal Diagram Product Description Manufacturer Part Number Manufacturer 3 in. TWIN PIPE TERMINATIONS ISELL0387UV 3 in. 87° Long PPS-UV ISTT0320 3 in. Termination Tee ISLPT0303 3 in. Low Profile Wall Termination 3PPS-HTPL 3 in. Twin Pipe Termination 3PPS-HSTL 3 in. Single Horizontal Termination 3PPS-TBL 3 in.
Direct Vent: Termination Clearances The information below applies to Concentric and Twin Pipe. TERMINATION Clearance in Ref. A also applies to anticipated snow line X AIR SUPPLY INLET V VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED SNOW Ref A B C Description Clearance above grade, veranda, porch, deck, or balcony Clearance to window or door that may be opened Clearance to permanently closed window Canadian Installations (CSA B149.1) U.S. Installations (ANSI Z223.
Direct Vent: Concentric Pipe CONCENTRIC PIPE: TERMINATION CLEARANCES 60 in. (1.52 m) Note: 24 in. (0.61 m) to wall or parapet 12 in. (0.30 m) Between terminals at different levels 12 in. (0.30 m) 60 in. (1.52 m) vertically between terminals 12 in. (0.30 m) Inside Corner Between terminals at same level All terminations (horizontal and/or vertical) must terminate 12 in. (0.30 m) above grade or anticipated snow level.
CONCENTRIC PIPE: INSTALLATION INSTRUCTIONS CONCENTRIC PIPE: EXAMPLE VENT APPLICATIONS The instructions below apply to concentric vent sizes 2 in. x 4 in. and 3 in. x 5 in. WARNING Horizontal Wall Terminations 2 in. x 4 in. Improper installation of vent components, or failure to follow all installation instructions can result in property damage, personal injury, or death. 1 Remove the vent top (slightly twist counterclockwise and pull up). Discard vent top if desired. 3 in. x 5 in.
Direct Vent: Twin Pipe TWIN PIPE: TERMINATION CLEARANCES Twin Pipe Vertical Termination of Multiple Boilers Horizontal Vent and Combustion Air Piping 12 in. (0.30 m) minimum Wall 12 in. (0.30 m) minimum 60 in. (1.5 m) minimum Exhaust Zone Exhaust 12 in. (0.30 m) minimum above combustion air opening Combustion Air Exhaust 12 in. (0.30 m) above grade or anticipated snow level 12 in. (0.30 m) minimum Roof Combustion Air 12 in. (0.
TWIN PIPE: INSTALLATION INSTRUCTIONS This boiler is equipped with a 3 in. PVC pipe connection. With the use of a pipe reducer, installers can use a 2 in. pipe for the combustion air and exhaust. WARNING DO NOT apply PVC glues, solvents, or cleaners to the boiler’s combustion air or exhaust gasket connections. Failure to correctly assemble the components according to these instructions may result in property damage, personal injury, or death. Install 2 in. PVC or PP (60 mm) Install 3 in.
TWIN PIPE: EXAMPLE VENT APPLICATIONS Slope horizontal exhaust 1/4 in. per foot towards the boiler. DO NOT slope combustion air pipe towards the boiler. This configuration requires the use of a Concentric Vent Termination 2 in. or 3 in. PVC/CPVC IPEX/Royal Concentric Side Wall Termination Configuration This configuration requires the use of a Concentric Vent Termination 2 in. or 3 in. PVC/CPVC IPEX/Royal Concentric Vertical Termination Configuration 2 in. or 3 in.
Room Air ROOM AIR: TERMINATION CLEARANCES TERMINATION Clearance in Ref. A also applies to anticipated snow line X AIR SUPPLY INLET V VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED SNOW Ref A Description Clearance above grade, veranda, porch, deck, or balcony Canadian Installations (CSA B149.1) Other than Direct Vent (Room Air) 12 in. (30 cm) U.S. Installations (ANSI Z223.1 /NFPA 54) Other than Direct Vent (Room Air) 12 in. (30 cm) 36 in. (91 cm) 4 ft (1.
NOTE: Installation of Room Air must use listed Category IV venting. NOTE: All terminations (horizontal and/or vertical) must terminate 12 in. above grade or anticipated snow level. ROOM AIR: EXHAUST TERMINATION CLEARANCES 12 in. 12 in. (0.30 m) 60 in. (1.
ROOM AIR: COMBUSTION AIR WARNING This boiler requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the following methods to ensure adequate combustion air is available for correct and safe operation of this boiler. Important: Combustion air must be free of corrosive chemicals. Do not provide combustion air from corrosive environments.
Louvers and Grills When sizing the permanent opening consideration must be taken for the design of the louvers or grills to maintain the required free area required for all gas utilizing equipment in the space. If the free area of the louver or grill design is not available, assume wood louvers will have 25% free area and metal louvers or grills will have 75% free area. Under no circumstance should the louver, grill or screen have openings smaller than 1/4 in. Examples: Wood: 10 in. x 12 in. x 0.
ROOM AIR: INSTALLATION INSTRUCTIONS Insert air filter or elbow into 3 in. PVC intake air fitting. Air Filter Elbow ROOM AIR: MAXIMUM EQUIVALENT VENT LENGTH Vent Sizes Boiler Model Number Vent Lengths • • • • 2 in. PVC 2 in. (60 mm) PP 3 in. PVC 3 in.
ROOM AIR: EXAMPLE VENT APPLICATIONS 2 in. or 3 in. Schedule 40 PVC/CPVC Snorkel Termination Configuration 2 in. or 3 in. Schedule 40 PVC/CPVC Standard Upside Down "U" Vertical Termination Configuration 2 in. or 3 in. Schedule 40 PVC/CPVC Elbow or Tee Side Wall Termination Configuration 2 in. or 3 in. Schedule 40 PVC/CPVC Tee Vertical Termination Configuration Slope horizontal exhaust 1/4 in. per foot towards the boiler.
6 System Piping Instructions Topics in this section • • • • To connect the water supply, follow the instructions below. Piping for Central Heating Systems Piping for DHW Systems Connect the Condensate Drain Line Connect the Pressure Relief Valves IMPORTANT: Water connections to the boiler should follow all state and local plumbing codes. If this is a standard installation, refer to the “Piping Diagram for Basic Central Heating Installation” on the next page.
Piping Diagram for a Basic Central Heating System Outdoor Reset NOTE Optional Low Water Cut-Off (LWCO) This schematic shows a simple single zone system without an external system circulator (not including the circulator located inside the boiler). If an external circulator is present, a primary/secondary system is required. This type of boiler connection may also be necessary in a multiple zone application.
Hydraulic Separation In some circumstances it may become necessary to have hydraulic separation between the boiler and the central heating system. Hydraulic separators allow for no pump curve matching or flow calculation; this is ideal for multitemperature and multi-zone systems.
Pressure Drop and Water Flow Curve with Hydraulic Separation Example: If there is a 6 GPM system flow demand, there would be approximately 10 ft of head available for the system. If more pressure drop is present in the central heating system, a means of hydraulic separation is necessary. Pressure Loss (Feet of Head) 30 25 20 15 10 5 0 0 1 2 3 4 5 6 7 8 9 10 Water Flow (GPM) Internal Bypass There is an internal bypass valve located in the supply side of the water control assembly.
Piping for DHW Systems Guidelines • A thermostatic mixing valve shall be installed on all M-Series Combi boilers on the domestic hot water side to prevent scalding; this valve regulates the water temperature leaving the brazed plate heat exchanger. 2 Plumb the cold water supply line to the DHW cold inlet connection on the bottom of the boiler. • The piping (including soldering materials) and components connected to this appliance must be approved for use in potable water systems.
Piping Diagram for Basic DHW Installation This is not an engineering drawing; it is intended only as a guide and not as a replacement for professional engineering project drawings. This drawing is not intended to describe a complete system. It is up to the contractor or engineer to determine the necessary components and configuration of the particular system to be installed. The drawing does not imply compliance with local building code requirements.
Connect the Condensate Drain Line Guidelines • • • • • • • Do not plumb the condensate drain with the pressure relief valve; both must be plumbed independently to drain. All condensate must drain and be disposed of according to local codes. Use only corrosion resistant materials for the condensate drain lines such as PVC pipe or plastic hose. The condensate drain pipe (along its entire length) must be at least 1/2 in.
Connect the Condensate Drain Kit Tools/Materials Required Multi-purpose grease or lubricant Verify Contents Item # Item Qty a Elbow with flexible pipe 1 b T-piece, elbow and flexible pipe assembly 1 c Flexible drain pipe 1 d Condensate drain inner tube 1 e Condensate drain outer tube 1 f Condensate collector cover 1 Instructions Apply grease or lubricant to top of o-ring Reference Figure 1 for the following instructions. 1.
Connect the Pressure Relief Valves (For DHW and Central Heating) WARNING Water discharged from the pressure relief valve could cause severe burns instantly or death from scalds. General Guidelines for Central Heating and DHW An approved pressure relief valve is required by the American National Standard (ANSI Z21.13) for all water heating systems and shall be accessible for servicing.
7 Gas Supply Topics in this section • • Connect the Gas Supply Gas Pipe Sizing Reference Tables Connect the Gas Supply WARNING • • • • • A licensed professional must install the gas supply. Turn off 120V power supply. Turn off the gas. Gas is flammable. Do not smoke or provide other ignition sources while working with gas. Do not turn on the boiler or gas until all fumes are gone.
Gas Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions EXACTLY, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance area for gas.
Gas Pipe Sizing Reference Tables GAS PIPE SIZING CALCULATION WORKSHEET The gas supply must be capable of handling the entire gas load required at the location. Gas line sizing is based on gas type, the pressure drop in the system, the gas pressure supplied, and gas line type. For gas pipe sizing, refer to the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1 Instructions: Enter values in empty boxes.
Natural Gas EXAMPLE Rinnai Model Gas Input: Pressure Drop 3.0 in. w.c. Intended use: Initial supply pressure of 8.0 in. w.c. or greater. Information in table obtained from NFPA 54, ANSI Z223.1 - 2015. Schedule 40 Metallic Pipe Inlet Pressure: Less than 2 psi Specific Gravity: 0.
Test the Ignition Safety Shut Off Device the boiler front panel. 1 Remove (See section 3. About the Boiler → How to Remove the Front Panel for detailed instructions). 2 Disconnect the wiring connection from the flame rod (located on left side of boiler). Remove the wiring connection Boiler left side WARNING Do not touch the inside of the wiring connection while it is disconnected. 3 On the control panel, press and hold the Service Mode button for approximately 7 seconds.
8 Power Supply Guidelines WARNING • • Do not use an extension cord or adapter plug with this appliance. The boiler must be electrically grounded in accordance with local codes and ordinances or, in the absence of local codes, in accordance with the National Electrical Code, ANSI/NFPA No. 70. CAUTION • • This boiler is supplied with 120 volts and is equipped with a three-prong (grounding) plug for your protection against shock hazard.
Electrical Connections Devices such as the room thermostat and outdoor temperature sensor are connected to the connection terminal. The connection terminals are located on the top and back of the controller. To access the controller, remove the front panel (see section 3. About the Boiler → How to Remove the Front Panel for detailed instructions).
9 Commissioning THIS SECTION IS INTENDED FOR THE INSTALLER This boiler must be commissioned by a licensed professional. Installer qualifications: A trained and qualified professional must install the appliance, inspect it, and leak test the boiler before use. The warranty will be voided due to any improper installation.
Step 2: Set the O2 at Maximum Input THIS SECTION IS INTENDED FOR THE INSTALLER NOTICE The O2 percentage setting is required to be checked at commissioning, maintenance and faults and adjusted if needed. WARNING The O2 percentage is required to be checked and adjusted after a conversion from Natural Gas to Liquid Propane, or from Liquid Propane to Natural Gas. Setting the O2 at maximum input must be performed with a calibrated combustion analyzer that is set to the correct gas type. 1.
Step 3: Set the O2 at Minimum Input THIS SECTION IS INTENDED FOR THE INSTALLER 1. While still in service mode (as described in the previous step), use the scroll wheel to adjust to 0%. 2. Press OK. 3. The boiler is now at minimum input. 4. After the boiler has run for approximately one minute, the O2 value displayed on the combustion analyzer should be 1.6% higher than the maximum input value. Example: If maximum input value is 4.8%, then minimum input value should be 6.4%.
10 Post-Installation Checklist Complete the following checklist when boiler installation is complete. You should be able to answer YES to each question. If you answer NO, installation is not complete. Refer to the applicable section in the Rinnai M-Series Condensing Boiler Installation and Operation Manual for additional information. For assistance, contact your local dealer or distributor, or call Rinnai Customer Care at 1-800-621-9419.
PRESSURE RELIEF VALVE (PRV) YES NO Does the PRV comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems ANSI Z21.22, and/or the standard Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum Relief Valves, CAN1-4.
11 Operation Topics in this section • Start-Up Information Control Panel Boiler Display Basic Operation Settings • • • This section includes instructions for starting and operating the boiler. Start-Up Information NOTICE The boiler will not immediately fire up and begin operation. The boiler will go into an automatic de-aeration program that is approximately 7 minutes in duration. NOTICE It can take up to a week before all the air has disappeared from a newly filled and pressurized installation.
Control Panel Access the Control Panel Slowly lower the protective panel on the front cover to access the control panel. Control panel Control Panel Features ❼ ❸ ❺ ❶ ❷ ❹ ❶ Power (On/Off) Press to turn the boiler on or off. (I = On O = Off) ❷ Selector Wheel Turn the wheel left or right to scroll through available menu options ❸ Back Press to go back one screen. 60 I O ❻ ❹ Reset ❻ Press to reset a fault code.
Boiler Display When the boiler is turned on, the main screen (also called the home screen) appears in the display.
Basic Operation Settings Turn the Boiler On or Off To turn the boiler on or off, press the Power switch. I = On O = Off Change the Central Heating Setpoint Temperature 1 4 CH Setpoint Temp is highlighted. Press OK. 5 The option T set Z1 is highlighted. Press OK. 6 Turn the selector wheel to until the desired temperature appears on the display. Press OK. 7 Press the Back button until the Home screen appears on the display. Note: T set Z2 and T set Z3 are inactive functions.
Change the Domestic Hot Water Setpoint Temperature 1 From the controller Home screen, press OK. 5 The current DHW comfort setpoint temperature is displayed. Press OK. 6 Turn the selector wheel to until the desired temperature appears on the display. Press OK. Home screen 2 Turn the selector wheel to highlight Complete Menu. Press OK. 3 Turn the selector wheel to highlight DHW Settings. Press OK.
Change the Altitude 1 From the controller Home screen, press the BACK and OK buttons at the same time for 7 seconds. 5 Option 2.0 General is highlighted. Press OK. Home screen 2 3 4 64 Turn the selector wheel so that 007 appears as the technical code. 6 7 Turn the selector wheel to highlight Complete Menu. Press OK. Turn the selector wheel to highlight 2 Boiler Parameters. Press OK. 8 Turn the selector wheel to highlight 2.0.4 Altitude. Press OK. Scroll to the desired altitude and press OK.
Change DHW Comfort Mode Setting Comfort mode is a domestic hot water setting that enables the boiler to fire up more often to maintain the heat exchanger temperature. This enables quicker delivery of hot water to hot water fixtures. By default, comfort mode is disabled (turned off). To enable (turn on) comfort mode, follow the steps below. Comfort mode has three options: Option 1: Always Active This option provides continuous hot water all day long.
Disabled To disable Comfort mode, follow the steps below. 1 From the controller Home screen, press OK. 6 Comfort mode is disabled. To exit, press the Back button until the Home screen appears on the display. Home screen 2 3 4 5 Turn the selector wheel to highlight Complete Menu. Press OK. Turn the selector wheel to highlight DHW Settings. Press OK. Turn the selector wheel to highlight Comfort Function. Press OK. Disabled is selected Press OK. The message below appears.
Time Based To enable the Time Based comfort mode setting, follow the steps below. 1 From the controller Home screen, press OK. 7 Select one of the two options: • Free Time Programming—user-defined times for when comfort mode is active • Preset programs—options for preset times for comfort mode to be active Home screen 8 2 3 4 5 Turn the selector wheel to highlight Complete Menu. Press OK. Turn the selector wheel to highlight DHW Settings. Press OK. 9 DHW is selected. Press OK.
Change the Language Change Units of Measurement To change the language appearing on the boiler display, follow the steps below. To change the unit of measurements appearing on the boiler display, follow the steps below. 1. From the controller Home screen, press OK. 1. From the controller Home screen, press OK. 2. Turn the selector wheel to highlight Complete Menu. Press OK. 2. Turn the selector wheel to highlight Complete Menu. Press OK. 3. Turn the selector wheel to highlight Screen Settings.
Fault Codes WARNING Some of the checks below should be performed by a licensed professional. Consumers should never attempt any action that they are not qualified to perform. When the boiler detects an error, a 3-digit blocking or fault code appears on the controller display. • A blocking code is a temporary error that can be automatically corrected by the boiler. • A fault code requires the error to be reset and/or corrected for the boiler to go back into a normal operating mode.
Code Description 1P1 Flow Check 1 Failed 1P2 Flow Check 3 Failed 1P3 Flow Check 4 Failed Reason(s) Fault Location Change in supply temperature of 12.
Reset a Fault Code 1 2 When an error occurs, the fault code and description appear on the display. To reset the fault code, press the RESET button. 4 5 6 3 The Reset in Progress message appears. The Fault Solved message appears. After the code is reset, the Home screen automatically appears.
View Error Code History 1 From the controller Home screen, press the BACK and OK buttons at the same time for 7 seconds. 5 Turn the selector wheel to highlight 8.6 Error History. Press OK. Home screen 2 6 Turn the selector wheel so that 007 appears as the technical code. 7 3 Option 8.6.0 Last 10 Errors is highlighted. Press OK. Turn the selector wheel to highlight Complete Menu. Press OK. Scroll to view the last 10 errors.
Chimney Active (Service Mode) WARNING This section should be performed by a licensed professional. Consumers should never attempt any action that they are not qualified to perform. The Chimney Active (service mode) button puts the boiler into service mode which allows adjustment of high fire/low fire and O2 settings. To enter Chimney Active (service mode): 1 From the controller Home screen, press and hold the Chimney Active button for approximately 7 seconds.
12 Maintenance Topics in this section • • Boiler Maintenance Flushing the Plumbing System for Central Heating Systems Boiler Maintenance This boiler must be inspected annually by a licensed professional. Repairs and maintenance shall be performed by a licensed professional. The licensed professional must verify proper operation after servicing.
PRESSURE RELIEF VALVE FREEZE PROTECTION Operate the pressure relief valve manually once a year. In doing so, it will be necessary to take precautions with regard to the discharge of potentially scalding hot water under pressure. Ensure discharge has a safe place to flow. Contact with your body or other property may cause damage or harm. Freeze protection for new or existing systems must use glycol that is specially formulated for this purpose.
Instructions The following steps reference the image at the bottom of the page. 1. If the installation is a zone system (utilizes multiple zones), purge out each zone individually. 2. Close the automatic fill valve on the system (F1). 3. Close the return side purge station (BD2) and disconnect the hose (H3). 4. Open the main valve on the system return (V3). 5. Close the bypass valve below the boiler (V4). 6. Open the shutoff valves on both the supply and return connections below the boiler (V1 and V2). 7.
13 Appendices Topics in this section • Approved Cleaners, Inhibitors and Antifreezes • Boiler Parts • System Application Examples • Gas Conversion • Wiring Diagram • Ladder Diagram • Pressure Drop and Water Flow Curve • Massachusetts State Gas Regulations • Warranty Approved Cleaners, Inhibitors and Antifreezes Below is a list of approved system cleaners, inhibitors, and antifreezes for use in hydronic plumbing systems utilizing Rinnai boilers.
Boiler Parts Boiler Casing Item # 78 Description Part Number Quantity M060C M090C M120C M160C 12 Front cover 809000145 1 1 1 1 13 Screw M5 x 12 mm 809000019 2 2 2 2 14 Hinge 809000146 2 2 2 2 50 2-pipe adapter 802000005 1 1 1 1 51 3 in.
Heat Exchanger Rinnai M-Series Condensing Combi Boiler Installation and Operation Manual 79
Heat Exchanger (Continued) Item # 80 Description Part Number Quantity M060C M090C M120C M160C 808000037 1 1 1 1 806000035 1 - - - 806000036 - 1 1 1 806000037 1 - - - 806000038 - 1 1 1 806000032 1 - - - 806000033 - 1 1 1 805000062 1 1 1 1 807000169 1 - - - 807000170 - 1 1 1 807000135 1 - - - 807000136 - 1 1 1 807000137 1 - - - 807000138 - 1 1 1 31 Gasket 32 Burner hood 33 Gasket kit 34 Burner 36 Electrode gasket 37 Heat
Hydraulic Parts/Pipes Rinnai M-Series Condensing Combi Boiler Installation and Operation Manual 81
Hydraulic Parts/Pipes (Continued) Item # Description Part Number Quantity M060C M090C M120C M160C 79 Condensate collector kit 807000140 1 1 1 1 80 Condensate drain kit 807000141 1 1 1 1 81 Condensate drain o-ring Ø28.25 x 2.62 mm 807000142 1 1 1 1 82 Condensate drain inner tube 807000143 1 1 1 1 83 Condensate drain tube o-ring Ø37.69 x 3.
Hydraulic Parts/Pipes (Continued) Item # Description Part Number Quantity M060C M090C M120C M160C 129 Flow sensor retention clip 809000151 1 1 1 1 130 Gas valve 806000034 1 1 1 1 131 3/4 in. gas valve gasket 809000062 1 1 1 1 133 Yellow silicone o-ring Ø13.94 x 2.
Electrical Components 84 Rinnai M-Series Condensing Combi Boiler Installation and Operation Manual
Electrical Components (Continued) Item # Description Part Number Quantity M060C M090C M120C M160C 142 Ignition control box 805000060 1 1 1 1 146 controller casing/back 809000152 1 1 1 1 147 PC Board 805000055 1 1 1 1 148 Key pad 805000067 1 1 1 1 149 Controller casing/front 809000153 1 1 1 1 150 Hinge support 809000154 2 2 2 2 152 Fuse 4A (250V) 805000068 1 1 1 1 Screw terminal-white 805000069 1 1 1 1 Screw terminal-blue 805000071 1 1 1 1
System Application Examples Single Zone with Hydraulic Separation NOTE Primary/secondary piping is necessary in the following applications: when using external pumps; large zoned systems; high flow applications; systems with high differential pressures; and systems with pressure drops higher than 20 FT of head (see the Pressure Drop and Water Flow Curve in section 13 Appendices for pressure curve information). LEGEND 86 This picture illustrates a suggested arrangement. Some of the fittings are optional.
Single Zone without Hydraulic Separation NOTE For systems without hydraulic separation, care needs to be taken in reference to the pressure drop of the system (most restrictive loop) and the boiler at the necessary central heating system flow rate. Refer to the Pressure Drop and Water Flow Curve section in the Appendices for more information. LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional.
Air Handler with Hydraulic Separation NOTE Primary/secondary piping is necessary in the following applications: when using external pumps; large zoned systems; high flow applications; systems with high differential pressures; and systems with pressure drops higher than 20 FT of head (see the Pressure Drop and Water Flow Curve in section 13 Appendices for pressure curve information). LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional.
Multiple Zones with Hydraulic Separation NOTE Primary/secondary piping is necessary in the following applications: when using external pumps; large zoned systems; high flow applications; systems with high differential pressures; and systems with pressure drops higher than 20 FT of head (see the Pressure Drop and Water Flow Curve in section 13 Appendices for pressure curve information). LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional.
Multiple Zones without Hydraulic Separation NOTE For systems without hydraulic separation, care needs to be taken in reference to the pressure drop of the system (most restrictive loop) and the boiler at the necessary central heating system flow rate. Refer to the Pressure Drop and Water Flow Curve section in the Appendices for more information. LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional.
Multiple Zones (with Pump) with Hydraulic Separation NOTE Primary/secondary piping is necessary in the following applications: when using external pumps; large zoned systems; high flow applications; systems with high differential pressures; and systems with pressure drops higher than 20 FT of head (see the Pressure Drop and Water Flow Curve in section 13 Appendices for pressure curve information). LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional.
Gas Conversion This boiler is configured for Natural Gas only. To convert to Propane Gas, follow the instructions in this section. Safety Precautions WARNING The conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in these instructions must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury or death.
Gas Conversion Instructions 6. Remove the gas line and place aside. You Will Need: • • • Conversion Kit (supplied with boiler) Adjustable wrench Combustion analyzer Gas line removed Gas line Instructions: 1. Disconnect electrical power to the boiler. 2. Turn off the boiler’s gas supply by turning off the gas control valve. 3. Remove the boiler’s front panel (for details, see 3. About the Boiler > How to Remove the Front Panel). 4.
8. Remove the Liquid Propane restrictor in the gas venturi. 13. Remove the front housing of the PCB. 14. Insert the EEPROM key (included with conversion kit) into the connector on the PCB. 9. Replace the yellow gasket into the gas venturi. 15. Reattach the PCB front housing and screw terminals. 16. Connect electrical power to the boiler. 17. The Airpurge active screen appears on the boiler display. 10. Reconnect the gas valve, gas venturi connections and gas line. 11. Reconnect the air supply damper.
19. The Flash Memory Detected screen appears. Press OK. 22. After a few seconds, the boiler automatically turns on and goes into Airpurge active mode. Your psi values may differ than the values shown in image. 23. Remove the EEPROM key from the PCB: 20. The following screen appears indicating data parameters have been copied to the Mainboard. a. Disconnect power to the boiler b. Remove the front housing of the PCB. c. Remove the EEPROM key from the connector. 24.
Wiring Diagram 96 Rinnai M-Series Condensing Combi Boiler Installation and Operation Manual
Ladder Diagram Rinnai M-Series Condensing Combi Boiler Installation and Operation Manual 97
Pressure Drop and Water Flow Curve Pressure Loss (Feet of Head) 30 25 20 15 10 5 0 0 1 2 3 4 5 6 7 8 9 10 Water Flow (GPM) * Pressure drop curve applies to all M-Series Condensing Boilers (M060C, M090C, M120C and M160C).
Resistance/Temperature Table for Sensors Outdoor Reset Sensor (T4) Temperature (°C) -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 40 NTC1k (25°C) Temperature (°F) 14.0 15.8 17.6 19.4 21.2 23.0 24.8 26.6 28.4 30.2 32.0 33.8 35.6 37.4 39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8 62.6 64.4 66.2 68.0 69.8 71.6 73.4 75.2 77.0 78.8 80.6 82.4 84.2 86.0 95.0 104.0 Resistance (Ω) 4.574 4.358 4.152 3.958 3.774 3.600 3.435 3.
Remove a Boiler From a Common Vent System If a boiler is removed from a common vent system, the common vent system is likely to be too large for proper venting of the remaining appliances connected to it. The instructions shall include the test procedure set forth below: At the time of removal of an existing boiler, the following steps shall be followed with each other appliances remaining connected to the common venting system are not in operation. 1. Seal any unused openings in the common venting system.
Massachusetts State Gas Regulations FOR GAS MODELS SOLD IN MASSACHUSETTS NOTICE BEFORE INSTALLATION: This direct-vent appliance must be installed by a properly trained licensed professional. If you are not properly trained, you must not install this unit. IMPORTANT: In the State of Massachusetts (248 CMR 4.00 & 5.
Warranty Limited Warranty for M-Series Boiler Models Boiler Models: M060C, M090C, M120C and M160C What Is Covered? The Rinnai Standard Limited Warranty covers any defects in materials or workmanship when the product is installed and operated according to Rinnai written installation instructions, subject to the terms within this Limited Warranty document. This Limited Warranty applies only to products that are installed correctly in the United States and Canada.
What Is Not Covered? This warranty does not cover any failures, heat exchanger leakage, or operating difficulties due to the following: • Accident, abuse or misuse • Alteration • Misapplication • Force majeure • Improper installation (such as but not limited to inadequate water quality, condensate damage, improper venting, incorrect gas type, incorrect gas or water pressure, or absence of a drain pan under the product) • Improper maintenance (such as but not limited to scale build-up, freeze damage, or vent
800000063(02) Rinnai M-Series Condensing Combi Boiler Installation and Operation07/2018 Manual
