Rinnai IP175199C Installation And Operation Manual
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Rinnai IP175199C Installation And Operation Manual

Plus condensing combi boiler
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  • Page 2: Table Of Contents

    7. DHW System Piping ....................... 51 7.1 Guidelines ........................51 7.2 Instructions ........................51 7.3 Piping Diagram for a Basic DHW Installation ..............52 8. CH System Piping ......................53 8.1 Guidelines ........................53 8.2 Instructions ........................53 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 3 14.11 Remove a Boiler from a Common Vent System ............146 14.12 Massachusetts State Gas Regulations ................ 147 14.13 Federal Communication Commission (FCC) Interference Statement ......148 14.14 Industry Canada Statement ..................149 14.15 Warranty ........................150 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 4 Thank you for purchasing a Rinnai I-Series Plus Condensing Boiler. Before installing and operating this boiler, be sure to read these • You must read the entire manual to instructions completely and carefully to properly operate the boiler. familiarize yourself with the boiler’s features •...

  • Page 5: Safety Symbols

    Indicates an imminently hazardous the vicinity of this or any gas appliance. situation which, if not avoided, will • Always check the water temperature result in personal injury or death. before entering a shower or bath. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 6 • Proper venting is required for the safe operation of this appliance. Failure to properly vent this appliance can result in death, personal injury and/or property damage. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 7: Front View

    • Components Cold Inlet Hot Outlet • Specifications • Dimensions • Accessories Vent Connections Central Condensate Heating Central Drain Return Heating Supply Figure 2: Bottom View Controller Piping Connections Figure 1: Front View Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 8 Primary-Secondary Heating Kit CH Return CH Pressure Relief Valve (supplied with boiler) Domestic Hot Water Pressure Relief Valve CH Supply Central Heating Pressure Gauge Condensate Drain Gas Shut Off Valve Domestic Hot Water Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 9 Control Panel Integrated Pump Diverter Valve PC Board Removed Fan with Integrated Venturi Silencer Gas Valve Bypass Servo Valve Plate Heat Exchanger Water Flow Servo Valve Condensate Trap Flow Sensor Figure 4: Components Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 10: Installation

    Canada CRN 2088.9CL Maximum gas supply pressure must not exceed the value specified by the manufacturer. Rinnai products are continually being updated and improved; therefore, specifications are subject to change without prior notice. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 11 Measurements: in. (mm) Front Side 19.45” (494mm) 15.48” (393.3mm) 5.91” 5.09” (150mm) (129.4mm) Figure 5: Dimensions Vent Connection: 2 in. (51 mm) nominal PVC/Polypropylene or 3 in./5 in. Concentric Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 12 DWH In (Cold Inlet) 3/4 in. NPT DHW Out (Hot Outlet) 3/4 in. NPT CH In (CH Return) 1 in. NPT CH Out (CH Supply) 1 in. NPT Condensate Outlet 1/2 in. NPT Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 13 The following optional accessories are available for the Rinnai I-Series Plus Condensing Boiler. SCALECUTTER CONDENSATE NEUTRALIZER Part #: 103000038 Part #: 804000074 Filters and reduces the amount of Neutralizes the condensate scale entering the boiler allowing generated by the boiler.

  • Page 14: Installation Guidelines

    Safety Devices for Automatically Fired installation must conform with the Boilers, ANSI/ASME CSD-1. Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280 and/or CAN/SCA Z240 MH Series, Mobile Homes. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 15 Combustion analyzer (intended for are not authorized for this boiler. use with condensing boilers) • DO NOT install the boiler on Hand truck with fastening belt carpeting. DO NOT install the boiler outdoor. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 16 • User Manual exhaust. • Technical Data Sheet (located on inside of boiler front panel) • “Key Points for a Successful Installation” Sheet (adhered to boiler front panel) Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 17: Guidelines

    For Domestic Hot Water systems, if you This section provides information on the install the boiler in an area that is known to importance of water quality to the Rinnai have hard water or that causes scale Condensing Boiler. The information is...
  • Page 18 Install the boiler and/or vent termination as far away as possible from exhaust vent hoods and dryer vents. • Damage and repair due to corrosive compounds in the air is not covered by warranty. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 19 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. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 20 Figure 12 Use the appropriate screws for the wall construction to secure the mounting bracket to the wall between two studs. Steps continued on next page. Figure 11 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 21 Pour approximately 10 ounces (1.25 cups) of water directly into the boiler’s exhaust port Top Bracket (do not remove the 2 in. PVC adapter prior to this). Exhaust Port Bottom Bracket Figure 13 Figure 14 Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 22: Venting Installation Sequence

    (1.2 m) and all vertical vent runs every 6 safe and proper operation, damaged vent components MUST be replaced before operating ft (1.83 m) or as per vent the boiler. manufacturer’s instructions or local code requirements. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 23 Avoid termination locations near drainage of condensate. commercial cooking exhaust. • Avoid termination locations near any air inlets. • You must install a vent termination at least 12 in above the ground or anticipated snow level. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 24 5. The boiler is now set to allow higher exhaust temperatures. To exit parameter settings and enter normal operation mode, press the SW1 left button on the PC Board. 6. Replace the boiler’s front panel by reinserting the two screws that secure the panel. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 25 Figure 17 Figure 18 Option 2 Non-Direct Vent (Room Air) See the Non-Direct Vent section for complete details. Room air is used for combustion Exhaust while exhaust vents to the outside. Combustion Figure 19 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 26 FGV Concentric Vent Kit (16 in. length) 196005PVC (Order from Rinnai) 196105, 197033 FGV Concentric Vent Kit (28 in. length) 196105PVC (Order from Rinnai) 196125 FGV Concentric Vent Kit (40 in. length) 196125PVC (Order from Rinnai) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 27 2 in. x 4 in. Concentric Vertical 190295 Termination 2 in. x 4 in. Concentric Horizontal CVENT-2 Termination 2 in. x 4 in. Concentric Horizontal 2ZDCTH24 Termination 2 in. x 4 in. Concentric Roof 2ZDCTV24 Termination Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 28 PVC/CPVC Concentric Vent Kit 3 in. x 32 in. 52CVKGVSF9003-32 (CPVC) 52CVKGVS6503-44 (PVC)/ PVC/CPVC Concentric Vent Kit 3 in. x 44 in. 52CVKGVSF9003-44 (CPVC) SC03HT Horizontal Termination Adapter SC03VT Vertical Termination Adapter ICRT3539 3''/5'' Concentric Roof Termination PPs-UV Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 29: In. X 4 In. Concentric Roof Termination

    3 in. x 5 in. Concentric 190395 Vertical Termination 3 in. x 5 in. Concentric CVENT-3 Horizontal Termination 3 in. x 5 in. Concentric 2ZDCTH35 Horizontal Termination 3 in. x 5 in. Concentric Roof 2ZDCTV35 Termination Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 30 FGV PVC Low Profile Termination Kit 196984PVC (Order from Rinnai) FGV PVC Wall 081216 Termination Kit 52SWVKGVS6502 PVC Side Wall Vent Kits 52WTVKGVS6502 PVC Wall Vent Kits 2 in. Low Profile HVENT-2 Horizontal Vent Kit Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 31 FGV PVC Low Profile Termination Kit 196985PVC (Order from Rinnai) FGV PVC Wall 081219 Termination Kit PVC Side Wall Vent 52SWVKGVS6503 Kits 52WTVKGVS6503 PVC Wall Vent Kits 3 in. Low Profile HVENT-3 Horizontal Vent Kit Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 32 APPROVED VENTING MATERIALS BY MANUFACTURER Table 14 Manufacturer Vent Material Ubbink PVC (Outer Vent), Polypropylene (Inner Vent) Centrotherm Polypropylene Heat-Fab Metal Metal Fab Metal IPEX PVC/CPVC DuraVent Polypropylene Royal ECCO Manufacturing Polypropylene DiversiTech PVC/CPVC Z-FLEX Polypropylene Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 33: Termination

    [2] Permitted only if veranda, porch, deck, or balcony is fully open on a mini- mum of two sides beneath the floor. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 34 3 in. X 5 in. 75 ft (23 m) 160 ft (49 m) Vent Lengths: • 45° elbow is equivalent to 3 ft (1 m) • 90° elbow is equivalent to 6 ft (2 m) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 35 / 5 in Vent Sizes (51 mm/100 mm) (76 mm/125 mm) 45° Elbow 3 ft (1 m) 2.5 ft (0.7 m) 90° Elbow 6 ft (2 m) 5 ft (1.5 m) Figure 24 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 36 Short Sweep Close Turn Vent 75 ft (23 m) 160 ft (49 m) Lengths: • 45° elbow is equivalent to 3 ft (1 m) • 90° elbow is equivalent to 6 ft (2 m) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 37 Figure 31 Exhaust 4. Install the exhaust vent pipe. Ensure it Vent Pipe is properly seated. Secure the exhaust vent pipe to the exhaust adapter ring with the supplied screw. Supplied Screw Figure 32 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 38 Slope horizontal exhaust 1/4 in. per foot towards the boiler. DO NOT slope combustion air pipe towards the boiler. CAUTION Rinnai cautions against installing the boiler in applications with venting in different pressure planes. It is possible to have poor performance with this installation. Table 22...

  • Page 39: Termination

    [2] Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 40 Inside Corner Figure 35 IMPORTANT • Installation of Room Air must use listed Category IV venting. • All terminations (horizontal and/or vertical) must terminate 12 in. above grade or anticipated snow level. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 41 Such chemicals can be found in, but not limited to bleach, ammonia, cat litter, aerosol sprays, cleaning solvents, varnish, paint and air fresheners. Do not store these products or similar products in the vicinity of this boiler. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 42 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 0.25 = 30 in. Metal: 10 in. x 12 in. x 0.75 = 90 in. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 43 Verify that adequate combustion air is available for all appliances installed in the space. □ Installation complies with National Fuel Gas Code, ANSI Z223.1/NFPA 54 as well as local and state regulations therein. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 44 Secure the combustion air vent pipe to screw. the combustion air vent connection with the supplied screw. Exhaust Vent Pipe Combustion Air Vent Pipe Supplied Screw Supplied Screw Figure 41 Figure 39 Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 45: Termination

    Room Air: Example Vent Applications Rinnai cautions against installing the boiler in applications with venting in CAUTION different pressure planes. It is possible to have poor performance with this installation. Table 27 2 in. or 3 in. 2 in. or 3 in.
  • Page 46 Outdoor Vent Cap Application The Rinnai RX Series Tankless Water Heater offers an outdoor vent cap as an accessory to enable outdoor installations. This is not an acceptable accessory for the I-Series Plus Condensing Boiler. The boiler is only approved to be installed indoors with appropriate venting to the outdoors.

  • Page 47: Gas Supply

    Reference Tables.” 7. Perform a leak and pressure test prior to operating the boiler. If a leak is detected, do not operate the boiler until the leak is Figure 43 Gas Shutoff Valve repaired. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 48 2. Turn off all electric power to the appliance if service is to be performed. 3. Turn the manual gas control valve located at gas inlet of appliance clock- wise to the OFF position. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 49 1000 60 (18) ANSWER: 70 (21) 80 (24) For this example, the pipe 90 (27) diameter must be at least 3/4 in. pipe size and 10 ft (3 m) in 100 (30) length. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 50 60 (18) Total Gas 264,000 Btu/hr Input 80 (24) 100 (30) For this example, the pipe diameter must be at least 1/2 in. nominal pipe size and 10 ft (3 m) in length. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 51: Guidelines

    20 seconds at 130°F (54°C) DHW Hot Isolation Valve • 8 minutes at 120°F (49°C) Outlet Children, disabled, or elderly are at Connection highest risk of being scalded. Feel water before bathing or showering. Figure 45 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 52 Confer with local building officials before installation. LEGEND The image below illustrates a suggested arrangement. Some of the fittings are optional. Figure 47 Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 53: Guidelines

    • Some installations with multiple zone valves may require a differential bypass, which will prevent excessively high flow rates through a single zone when the Figure 48 other zone valves are closed. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 54 Pressure/Temperature Gauge - The current pressure and temperature will alternately be displayed on the boiler control panel. A port for an external gauge is present in the Primary-Secondary Heating Kit accessory offered by Rinnai. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 55 Pressure Relief Valve (supplied with boiler) Pressure Gauge Air Separator Primary-Secondary Heating Kit System System Dirt Trap Supply Return Backflow Preventer Expansion Tank Ball Valve Fill Valve with Pressure Gauge Figure 50 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 56 It is the responsibility of the contractor or engineer to ensure the installation is in accordance with all local building codes. Confer with local building officials before installation. LEGEND This picture illustrates a suggested arrangement. Some of the fittings are optional. Figure 52 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 57 NOTE When Rinnai I-Series Plus Boilers are in use with Rinnai air handlers, please reference the air handler Installation and Operation Manual for installation and performance details. Examples of Hydraulic Separation Closely spaced tees and low loss headers are common examples of hydraulic separators and are used to separate the boiler loop from the central heating loop.
  • Page 58 From Heating Return Header IMPORTANT If using a low loss header, install the PRV and shut off valves between the boiler and low loss header (as illustrated in the above image). Figure 54 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 59 • The discharge line from the pressure relief relief valve and the boiler. valve should pitch downward and terminate 6 in. (152 mm) above drains where discharge will be clearly visible. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 60 A condensate neutralizer kit (part number 804000074) • is available from Rinnai. The kit allows condensate to To prevent condensate damage, follow these guidelines: flow through neutralizing media that raises the pH of Do not plumb the condensate drain with the •...

  • Page 61: Condensate Pump Safety Switch Wiring

    2. Open the boiler cover and locate two white closes. wires labeled “To Condensate Pump” (the wires may be located behind the PC Board). 3. Cut crimp connectors off white wires and strip the insulation off of the two ends. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 62: Guidelines

    − tampering. If there is more than one Making wiring connections and/or door to the boiler room, a switch changes to the wiring terminals on should be located at each door. the boiler. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 63 External Pump Connection 1 120 VAC, Max 2.0 A C R W C R W C R W C R W ❽ ❾ ❿ ⓫ ⓭ ⓯ ⓰ ⓬ ⓮ PC Board Figure 60 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 64 CAUTION • Rinnai recommends the use of spade connectors or similar components for wiring to the screw terminals. • Ensure that the insulation of the wire is not exposed to contact any other components besides the terminal. • If exposed wiring contacts to any other exposed wiring or metal components, an electrical short may occur and cause damage to the PCB or other connected components.
  • Page 65 If your connecting device has Bluetooth 4.0 or a newer version. Figure 63 6. Follow the steps in the Rinnai Central app to 1. Download the Rinnai Central confirm and/or change your boiler settings. app by scanning the following QR code: 7.
  • Page 66 3.(A). If you install the boiler by PVC venting: “ON/OFF” button. Press the Select button. Proceed to step 4. If you install the boiler by PP venting: Proceed to step 3(B). Figure 69 Figure 67 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 67 Follow the steps in section “12.4 Parameter Settings” and change parameters (Gas Type) and Venting correctly. 7. After initial settings are completed, press the On/ Off button to turn on the unit. Figure 71 Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 68: Safety Precautions

    13 PSI reduced component life. (90 kPa). 7. Check the heating system for leaks. 8. Begin the deaeration process shown in the next section (“10.3 Deaeration Process”). Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 69 8. Close the air vent on the pump. After approximately one week, Figure 73 (B) all air in the system should be eliminated via the air separator in the piping system. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 70 Failure to properly deaerate the boiler and system may result in damage to the boiler, which is not covered by the boiler warranty. To initiate or end the deaeration process, press and hold the SW2 button (shown below). PC Board Figure 74 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 71 This boiler has an integrated condensate trap. Have you verified that an external condensate trap is not   installed?   Have you confirmed the end of the condensate drain pipe is open to atmosphere?   Has an air gap been installed in the condensate drain line? Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 72 Did you confirm that an extension cord or an adapter plug has NOT been used with the boiler? YES NO COMMISSIONING   Did you prime the pump?   Was the boiler filled to 17-26 PSI?   Was the deaeration process performed on the boiler? Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 73: Start-Up Information

    Between 7.3 - 13 PSI, operation will be limited (E430 diagnostic code will be present on the controller display). − The maximum pressure permitted inside the heat exchanger is 45 PSI. − The pressure relief valve supplied with the boiler is rated to 30 PSI. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 74 Settings Menu ❽ Display Window Selects Further Menus Displays boiler status to adjust settings. information. See section “12.2.2 Display Window” for more information. Boost Button ❾ Engages the Boost Function on the boiler. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 75 Unit of Measurement for Temperature Outdoor Temperature Sensor ❹ Connected ⓫ Unit of Measurement for Pressure ❺ Eco Mode Active Note: Pressure and temperature are alternately displayed on the controller. ❻ Central Heating Mode Active Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 76 Adjust the temperature with the temperature. the Up and Down arrows until This temperature setting is the appropriate temperature is displayed for a few seconds and displayed. then returns to standby mode. Figure 80 Figure 79 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 77 This temperature setting appropriate Active button appears on is displayed for a few temperature is the home screen. seconds and then returns displayed. to standby mode. Figure 81 Figure 82 Figure 83 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 78 Figure 85 mode, and press the Select button. NOTE • On = Eco Mode Active • OFF = Comfort Mode Active During DHW recirculation, the Eco icon will always be on. Figure 86 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 79 To turn the control panel click sound on or off, follow the steps below. Figure 90 Figure 91 Press the Settings Menu button Press the Select button. twice. 2:on should appear on the display. Press the Up or Down arrows to select ON or OFF. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 80 Press the Settings Menu button Press the Select button. three times. 3:off should appear on the display. Press the Up or Down arrows to select: • OFF - Child Lock OFF • LOC - Child Lock ON Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 81 (press and hold both buttons performance data down at the same time). number described in The data for the the Performance Data performance number Figure 98 Table in this section. automatically appears in the display. Figure 97 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 82 Combustion Cycles x100 * Refer to the Technical Data Sheet located on the Combustion Hours (DHW) x10 Hours inside front cover of the Combustion Cycles (DHW) x100 boiler for additional information. Commissioning Cycles Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 83 PCB. Refer to the instructions Data Transfer Mode/ included in the replacement parts. Also, Button 3 Test Combustion this is used for setting the boiler into Mode/Flushing Mode forced combustion mode and flushing mode. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 84 5,401-7,700 ft 7,701-10,200 ft Altitude (0-610 m) (610-1,646 m) (1,646-2347 m) (2,347-3,109 m) IMPORTANT When a PC Board button is adjusted, it is not necessary to adjust the gas pressure setting for high altitude. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 85 12. Reinstall the orifice cover plate using the three screws to secure it to the gas valve. 13. Turn on the power and gas. Inspect for gas leaks. Grooved side of outer gasket MUST face outwards. Inner Outer Cover Gasket Orifice Gasket Plate Figure 102 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 86 Ubbink Rolux® Flexible Vent 30 ft (9 m) 50 ft (15 m) System, 2 in. (60 mm) PP 45° elbow is equivalent to 3 ft (1 m) 90° elbow is equivalent to 6 ft (2 m) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 87 11-A 11-b (such as Then, press the Select button. Figure 107 8. To exit parameter settings and enter normal operation mode, press the PC Board button. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 88 Simultaneous Simultaneous Central Heating and Domestic Central Domestic Hot Water Heating and Enables simultaneous operation Water Domestic Hot between Central Heating and Domestic Priority Water Hot Water. Permitted Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 89 CH applications. During simultaneous operation, the CH supply temperature may be up to 180°F. When selecting "NO" limitation, ensure that the CH system and heating application is designed for high temperature. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 90 This setting is primarily for an application pump 3 that requires two pumps or more for one pump 2 pump 3 zone, such as in use with an injection loop or pump 4 similar system. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 91 Not Run Main Pump pump operation to enable to deliver remained heat to the system for keeping the system piping from freezing. But it could reduce the temperature of inside of heat exchanger. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 92 Thermostat Usage and Central based on Heating Button return water temperature System Thermistor Control Enables system temperature Not In Use In Use control using the system thermistor on the secondary loop of a cascade system. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 93 “5.4 PVC Safety Switch” for more information. Altitude Setting Level 0 Level 1 Level 2 Level 3 Sets the elevation of the boiler 0-2,000 ft 2,001-5,400 5,401-7,700 ft 7,701-10,200 ft installation. (0-610m) (610-1646m) (1,646-2,347m) (2,347-3,109 m) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 94 Service Soon will appear again based on the Service Soon (SS) will display selected service interval. on the controller again when the boiler reaches the interval selected in the parameter settings. Figure 108 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 95 The sensor should then be wired back to the outdoor temperature sensor terminal on the boiler. Refer to the following sections for more information. North Facing Wall Outdoor Temperature Sensor Figure 109 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 96 140°F - 180°F (60°C - 82°C) Cast Iron/Panel Radiator 90°F - 120°F (32°C - 49°C) 140°F - 180°F (60°C - 82°C) Undermount Radiant 100°F -120°F (38°C - 49°C) 120°F - 150°F (49°C - 66°C) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 97 120°F (49°C) Radiators 170°F (77°C) 104°F (40°C) High Mass Radiant 120°F (49°C) 86°F (30°C) Custom curve based on Setting temperature on the Setting temperature on the customer input controller controller - 36°F (20°C) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 98 100°F (38°C) (-10°C) (40°C) 90°F (32°C) 86°F (30°C) 80°F (27°C) -20°F -10°F 0°F 10°F 20°F 30°F 40°F 50°F 60°F 70°F (-29°C) (-23°C) (-18°C) (-12°C) (-7°C) (-1°C) (4°C) (10°C) (16°C) (21°C) Outdoor Temperature Figure 111 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 99 To select the desired reset curve, access the parameters (as shown in section “12.4 Parameter Settings”) and select parameter . Then, select the desired curve. Table 41 Selection Parameter Setting Description Number Outdoor reset curve Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 100 Maximum outdoor temperature is selected by setting parameter number to “77°F (25°C)” or “No Maximum” (see section “12.4 Parameter Settings” for more information). Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 101 Heating will begin when voltage greater 110°F than 2V is detected. 100°F Figure 116 Table 42 Parameter Selection Number Setting Temperature Range Setting Temperature Range Setting Temperature Range Active Set Temperature—36°F (20°C) Set Temperature—54°F (30°C) Set Temperature—72°F (40°C) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 102 When installed, the boiler uses the cold water line for hot water recirculation. A thermal bypass valve can be purchased through Rinnai (PN: 107000143) or plumbing supply stores. •...
  • Page 103 (as outlined in the table below). and cold water lines. Figure 119 Table 43 DHW Setpoint 140/ 135/ 130/ 125/ 120/ 115/ 110/ 108/ 106/ 104/ 102/ 100/ 98/37 Temperature (°F/°C) Typical Pump OFF Intervals (Minutes) Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 104 Note: Rinnai strongly recommends installing insulation to the hot water and dedicated return lines to decrease the amount of heat loss. Dedicated Mode Plumbing Diagram IMPORTANT This diagram is not a complete piping diagram; it shows DHW piping only (Central Heating piping is not displayed).
  • Page 105 When selecting "No,” the boiler operates with pump ON continuously for controlling by an external timer pump. Smart-Circ Enables smart-circ logic together for DHW recirculation on each mode. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 106 When set for simultaneous operation, domestic hot water could be reduced by up to half depending on the central heating demand. If high domestic hot water flow is desired, it is recommended to not use the simultaneous operation feature. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 107 With the use of cascade cable(s), an I-Series Plus Combi Boiler can be electronically connected with up to 23 Rinnai CX (without pump) and CXP (with pump) tankless water heater models. This connection will rotate units operation order to ensure equal usage among the entire system and enables all units connected to modulate operation and function as one domestic hot water source.
  • Page 108 Only one (1) Combi boiler may be used in the cascade. • A maximum of two (2) Rinnai CXP (with pump) tankless water heaters may be used in a cascade. Table 47 Maximum Permissible Number of Units Per Type in Cascade...
  • Page 109 Unit Unit Unit Unit Unit Unit Combi Combi/Heat-Only (Solo) I-Series Plus Boiler I-Series Plus Boiler Figure 127 Table 48 Primary Unit Secondary Units Maximum Units in Cascade IP175199C IP175199C IP199199C IP199199C IP175S IP199S Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 110 Outdoor Temperature Sensor Secondary System Thermistor System Pump Figure 128 Secondary System Thermistor (Supplied with Boiler) Each individual zone control can be wired back to the thermostat terminals on each boiler Figure 129 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 111 “- - -” to the newly set ID number. After that, when the secondary Primary Secondary 01 Secondary 02 Secondary 03 units are boilers, the display Boiler alternates between pressure and temperature. Identify Secondary ID by Pressing “On/Off” Figure 130 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 112 Setting b Air Handler Post Pump Operation 15 Seconds 40 Seconds OPU Terminal Connections Normally Open Terminal PC Board Common Terminal Normally Closed Terminal T/T 3 Connection External Pump C R W Connection 3 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 113 1. Press and hold the Bluetooth button on the controller until the Bluetooth LED on the controller starts blinking. 2. Press and hold the Rinnai BLE push button until the green light flashes. The boiler will beep once when pairing is successful. If the pairing mode on the boiler expires without having successfully paired, the boiler will beep twice.
  • Page 114 Check flame rod voltage to ground Technical Data during ignition. Sheet located on inside front * See “Electrical Diagnostics” on Technical Data cover of boiler. Sheet located on inside front cover of boiler. Figure 135 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 115 Clean the surface of the sensor. • Measure the resistance of the sensor. * See “Electrical Diagnostics” on Technical Data • Check the return thermistor. Sheet located on inside front cover of boiler. • Replace if necessary. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 116 DHW Pump Terminal. • Ensure the capacity of the recirculation pump is sized appropriately for the piping (DHW recirculation pump should be higher than 1.3 GPM). • Ensure air is removed from the recirculation line. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 117 * See “Electrical Diagnostics” on Technical Data Sheet • Ensure the outgoing thermistor works located on inside front cover of boiler. without error by using DHW (Combi Only). • Replace the PC Board. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 118 Pump or Fan Even With No Demand NO CODE • The boiler may start or operate the pump for freeze protection operation. • The pump may intermittently operate to prevent it from becoming stuck. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 119 FH (forced high combustion) (the boiler is now in forced high condition). Figure 136(C) 8. To enter back into normal operation, press the SW3 right-side, black button. The controller now displays normal operation mode. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 120: Maintenance

    • Check that the pressure on the controller display or external pressure gauge indicates 17 to 26 PSI (117 to 180 kPa). Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 121 Flushing for DHW (plate heat exchanger). When LC code appears, the boiler Heat Exchanger detects lime scale accumulation. Once the flushing done, the LC code will disappear automatically. If the boiler is installed in hard water area, Rinnai recommends periodically flushing. Draining Water...
  • Page 122 Do not touch the burner surface. Condensate Trap Cleaning: • Inspect the condensate drain assembly inside the boiler and your external drain system. • Remove any debris that may be present in the condensate removal system. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 123 The internal freeze protection will not necessarily prevent the system piping from freezing. During freeze protection operation, the pressure and supply temperature will alternately display on the controller. Figure 140 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 124 6. Reconnect the wiring connection to the flame rod. Be careful not to touch the inside of the wiring connection. To reset the error, press the DHW button. The boiler starts up. Figure 142 7. Replace the boiler front panel. 8. The boiler may now go back into normal operation. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 125: Approved Cleaners, Inhibitors And Antifreezes

    If replacing a boiler, add system cleaners while the old boiler is installed and operate the old boiler for heating for several days to most effectively clean the system. • The Rinnai boiler must be closed off (valved off) from the rest of the system, or not connected, while cleaners are in the system. •...
  • Page 126 Note: When purging, continue until no bubbles are seen in the bucket. Hose 1 Hose 2 Boiler Dirt Trap Drain Boiler Purge and Supply Isolation Valves Shutoff Autofill Assembly Heat Emitter Figure 143 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 127 Note: If you need to cancel this procedure, you may press the Setting menu button on the controller (Figure 146), or press the SW3 button on the PC Board (Figure 145). Figure 147 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 128 16. Install the front panel and restore gas supply. IMPORTANT Scale build-up will affect the performance of the boiler. Water should be treated. Rinnai offers Southeastern Filtration’s “Scale Cutter Water Conditioning System” that offers superior lime Figure 149 scale prevention and corrosion control by feeding a blend of control compounds into the cold water supply.
  • Page 129 Failure to flush the boiler will cause damage to the plate heat exchanger. Damage caused by lime build-up is not covered by the boiler’s warranty. Rinnai strongly recommends installation of isolation valves to allow for flushing of the plate heat exchanger.
  • Page 130 (Figure 154), or press the SW3 button on the PC Board (Figure 152). Settings Menu Button Figure 154 17. After 60 minutes flushing time completes, display shows “rnS” (rinsing) (Figure 155) and beeping sound is observed. Figure 155 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 131 23. Install the front panel and restore gas supply. IMPORTANT Scale build-up will affect the performance of the boiler. Water should be treated. Rinnai offers Southeastern Filtration’s “Scale Cutter Water Conditioning System” that offers superior lime scale prevention and corrosion control by feeding a blend of control compounds into the cold water supply.
  • Page 132 14.9 DHW Pressure Drop and Flow Curve Legend: Refer to the legend below for the system applications shown in this section. Radiator with Thermostatic Heads This picture illustrates a suggested arrangement. Some of the fittings are optional. Figure 157 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 133 Optional LWCO Thermostat Purge Station PC Board Wiring for the above T/T 1 Connection application example External Pump Connection 1 C R W Thermostat Pump PC Board Figure 158 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 134 Zone Controller Purge Station PC Board Wiring for the above application example T/T 1 Connection C R W PC Board Thermostat 3 Zone Control Thermostat 4 Pump Thermostat 1 Thermostat 2 Figure 159 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 135 T/T 4 Connection Connection Connection Connection External Pump Connection C R W C R W C R W C R W PC Board Thermostat Thermostat Thermostat Thermostat Pump Pump Pump Pump Figure 160 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 136 Code. • The Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280 and/or CAN/CSA Z240 MH Series, Mobile Homes, Series M86 / Manufactured Home Construction and Safety Standard, Title 24 CFR. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 137 13. Turn on the power and gas. Inspect for gas leaks. 14. Proceed to the next section (14.5.3 Adjust Parameter Settings). Grooved side of outer gasket MUST face outwards. Inner Cover Outer Orifice Gasket Plate Gasket Figure 162 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 138 Natural Gas (NG) • Select for Propane (LP) Press the Select button to confirm the selection. Figure 166 8. To exit parameter settings and enter normal operation mode, press the PC Board button. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 139 , as applicable, Figure 168 in the exhaust system. 5. After measurement, remove the gas analyzer probe, place the combustion analysis port cap back on, and reinstall the clamp to secure the cap in place. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 140 Figure 169 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 141 Figure 170 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 142 Water Flow (GPM) Figure 171 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 143 Water Flow (GPM) Figure 172 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 144 Turn the power off. Do not attempt to connect the temperature controllers with the power on. Although the controller is a low voltage device, there is 120 volt potential next to the temperature controller connections inside the unit. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 145 Connect the controller cable to the mating terminal at the bottom of the PC Board. • Use the connecter (included) for wiring to remote controller. • Wire the connecter and remote controller, and insert the connecter on remote controller. Figure 174 Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 146 Chapter 13 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and/or the Natural Gas and Propane Installation Code, CAN/CSA B149.1. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 147 4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 148 The further RF exposure reduction can be achieved if the product can be kept as far as possible from the user body or set the device to lower output power if such function is available. Rinnai I-Series Plus Condensing Combi Boiler Manual...
  • Page 149 Cet équipement est conforme aux limites d'exposition aux rayonnements ISED établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. Rinnai I-Series Plus Condensing Combi Boiler Manual...

  • Page 150: Warranty

    Rinnai’s sole discretion. The warranty claim for product parts and labor may be denied if a component or product returned to Rinnai is found to be free of defects in material or workmanship; damaged by improper installation, use or operation;...
  • Page 151 Rinnai warranty will not be valid. Limitation on Warranties — No one is authorized to make any other warranties on behalf of Rinnai America Corporation. Except as expressly provided herein, there are no other warranties, expressed or implied, including, but not limited to warranties of merchantability or fitness for a particular purpose, which extend beyond the description of the warranty herein.

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