Rinnai SENSEI+ RUR199i Installation And Operation Manual
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Rinnai SENSEI+ RUR199i Installation And Operation Manual

Tankless water heater (with pump)
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INTERNAL (INDOOR) MODELS:
RUR199i (REU-NP3237FF-US)
RUR160i (REU-NP2530FF-US)
Tankless Water Heater (With Pump)
Installation and Operation Manual
Place
Model/Serial #
Label Here
Located in Manual Bag
EXTERNAL (OUTDOOR) MODELS:
RUR199e (REU-NP3237W-US)
RUR160e (REU-NP2530W-US)
ANSI Z21.10.3 ● CSA 4.3
U334-0773X02(00)
06000012336788

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Summary of Contents for Rinnai SENSEI+ RUR199i

  • Page 1 INTERNAL (INDOOR) MODELS: EXTERNAL (OUTDOOR) MODELS: RUR199i (REU-NP3237FF-US) RUR199e (REU-NP3237W-US) RUR160i (REU-NP2530FF-US) RUR160e (REU-NP2530W-US) ANSI Z21.10.3 ● CSA 4.3 Tankless Water Heater (With Pump) Installation and Operation Manual Place Model/Serial # Label Here Located in Manual Bag U334-0773X02(00) 06000012336788...
  • Page 2 – Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies. • L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien quali- fié ou par le fournisseur de gaz. Full-length French and Spanish versions available online at rinnai.us Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 3: Table Of Contents

    4.12 Configure Parameter Settings ..................... 61 4.13 External Pump with Circ-Logic ..................... 63 4.14 Post-Water Heater Installation Checklist ................64 Operation ............................65 Safety Precautions ........................66 Operating Instructions ......................67 Control Panel ........................68 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 4 Wiring Diagram ........................89 Ladder Diagram ........................90 Pressure Drop and Water Flow Curves ................91 Pressure Drop Curve (Water Heater + Pump) ..............92 Guidelines for Additional Temperature Controllers ............... 93 Warranty ............................94 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 5: Welcome

    • When installation is complete, leave this Natural Gas manual with the water heater (for internal/ indoor units) or give the manual directly to Polypropylene the consumer. Pressure Relief Valve Pounds per square inch W.C. Inches water column Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 6: Safety

    • Les panneaux d’avertissement de ce man- uel sont ici pour éviter de vous blesser et d’autres personnes. Suivez- les explicite- ment. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 7: Safety Symbols

    – Turn off the incoming water supply. This can be done at the isolation valve immediately below the water heater or by turning off the water supply to the building. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 8 Flammable liquids should not be used or stored in the vicinity of this or any other gas appliance. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 9: About The Water Heater

    Topics in this section • Front View • Bottom View • Components • Specifications • Dimensions • Accessories 3. 1 Front View Indoor Outdoor Vent Connections Exhaust Duct Controller Piping Connections Figure 1: Front View Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 10: Bottom View

    3.2 Bottom View Pressure Relief Valve Cold Water Hot Water Inlet Outlet Figure 2: Bottom View Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 11: Components

    Air Intake Air Inlet Filter Fan with Integrated Venturi Burner Assembly Gas Valve Ignition Unit Heat Exchanger Silencer PC Board Cover Water Flow Servo Control Panel Valve Integrated Pump Figure 3: Components Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 12: Specifications

    0.4 GPM (1.5 L/min). The 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 Tankless Water Heater Installation and Operation Manual...

  • Page 13: Dimensions

    Vent Connection: 2 in. (51 mm) nominal PVC/Polypropylene or 3 in./5 in. Concentric. Figure 4: Indoor Dimensions Outdoor Models (RUR199e and RUR160e) Front Panel View Side Panel View Figure 5: Outdoor Dimensions Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 14 Figure 6: Supply Connections Table 3: Supply Connections Connection Connection Size 3/4 in. NPT Cold Inlet 3/4 in. NPT Hot Outlet 3/4 in. NPT Condensate Drain 1/2 in. NPT Pressure Relief Valve M33 Thread Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 15: Accessories

    3.6 Accessories Numerous optional accessories are available for purchase for your Rinnai Tankless Water Heater. Listed below are some commonly purchased accessories. For a complete list of accessories, visit www.rinnai.us. For questions, or to purchase an accessory, contact your local Rinnai dealer/distributor or Rinnai Customer Care at 1-800-621-9419.
  • Page 16 DPS/MIS Switch Part #: REU-OPU3 The Maintenance Indication Switch (MIS) function provides tankless water heater monitoring via systems such as Building Management System (BMS). Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 17: Install The Water Heater

    These fumes can damage com- not suitable for space heating applications ponents and reduce the life of your appli- only. ance. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 18: What You Will Need

    • PVC glue/cement and primer • Thermal Isolation Valve and Bypass Filter • 2 conductor 22 AWG wire for controller • Literature Bag • Union and drain valves – Tankless Water Heater Installation and Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 19: Choose An Installation Location

    Scale build-up is caused by hard water and can be accelerated if the water heater is set at a high temperature. Rinnai offers Southeastern Filtration’s “ScaleCutter Water Conditioning System” that offers superior lime scale prevention and corrosion control.
  • Page 20 Chemi- cals that are corrosive in nature should not be stored or used near the water heater or vent termination. This requirement applies to internal (indoor) and external (outdoor) water heaters. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 21 Supply Line Supply Line 1/2 in. Normally Open Solenoid Valve 1/2 in. Normally Open Solenoid Valve Route Drain Per Local Code Route Drain Per Local Code Figure 7: Freeze Protection Piping Diagram Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 22 Back 0 in. Sides (Left and Right) 2 in. (51 mm) Add 0.25 in. (6.35 mm) for recess box Vent 0 in. (Internal/Indoor Models) Front Exhaust 24 in. (610 mm) (External/Outdoor Models) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 23 The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z221.3/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 24: Mount The Water Heater To The Wall

    Use the appropriate screws for the wall construction to secure the mounting bracket to the wall between two studs. Figure 11: Mount the top bracket Figure 10: Secure the bracket Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 25 The water heater must be installed in an upright position. Do not install the water Figure 12: Mount the bottom bracket heater upside down or on its side. Figure 13: Mount the water heater Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 26: Vent The Water Heater

    • The vent piece connected to the water heater must be secured with 1 self-tapping screw. • Refer to the instructions of the vent system manufacturer for component assembly Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 27 Figure 14: Vent Screen • Do not install the vent termination too close under the soffit where it could pres- ent recirculation of exhaust gases back into the combustion air part of the termina- tion. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 28 Figure 19: Common Vent, Direct Vent Figure 20: Common Vent, Room Air Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 29 FGV Concentric Vent Kit (16 in. length) (Order from Rinnai) 196105, 197033 196105PVC FGV Concentric Vent Kit (16 in. length) (Order from Rinnai) 196125 196125PVC FGV Concentric Vent Kit (40 in. length) (Order from Rinnai) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 30 2 in. x 4 in. Horizontal Termination 2PPS-HKL Kit-Concentric 190288 2 in. x 4 in. Concentric Horizontal Termination 190295 2 in. x 4 in. Concentric Vertical Termination 2 in. x 4 in. Concentric Horizontal CVENT-2 Termination Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 31 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) Horizontal Termination Adapter SC03HT Vertical Termination Adapter SC03VT 3 in./5 in. Concentric Roof Termination PPs-UV ICRT3539 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 32 3 in. x 5 in. Horizontal Termination Kit- 3PPS-HKL Concentric 3 in. x 5 in. Concentric 190388 Horizontal Termination 190395 3 in. x 5 in. Concentric Vertical Termination 3 in. x 5 in. Concentric CVENT-3 Horizontal Termination Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 33 FGV PVC Low Profile Termination Kit 196984PVC (Order from Rinnai) 081216 FGV PVC Wall Termination Kit 52SWVKGVS6502 PVC Side Wall Vent Kits 52WTVKGVS6502 PVC Wall Vent Kits HVENT-2 2 in. Low Profile Horizontal Vent Kit Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 34 FGV PVC Low Profile Termination Kit 196985PVC (Order from Rinnai) 081219 FGV PVC Wall Termination Kit 52SWVKGVS6503 PVC Side Wall Vent Kits 52WTVKGVS6503 PVC Wall Vent Kits HVENT-3 3 in. Low Profile Horizontal Vent Kit Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 35 Table 11: Approved Venting Materials By Manufacturer 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 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 36 [2] Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor. [3] If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearance shall prevail. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 37 12 in. (0.30 m) Figure 22: Concentric Pipe Termination Clearances Figure 25: Between terminals at same level All terminations (horizontal and/or vertical) must terminate 12 in. (0.30 m) above grade or anticipated snow level. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 38 1/4 in. per foot toward the appliance • 90° elbow is equivalent to 6 ft (2 m) according to the vent manufacturer’s installation instructions. Dispose of condensate per local codes. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 39 12 in. 12 in. Intake 12 in. 12 in. 12 in. Minimum clearance for Ground/Grade/Snow Level Indicates area in which intake cannot be installed. Figure 33: Horizontal Vent and Combustion Air Piping Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 40 Secure the exhaust vent pipe to the exhaust adapter ring with the supplied screw. Exhaust Vent Pipe Supplied screw Figure 34 2. Remove and discard the combustion air vent cap. Figure 37 Figure 35 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 41 2 in. (51 mm) 3 in. (76 mm) Vent Lengths 65 ft (20 m) 150 ft (46 m) • 45° elbow is equivalent to 3 ft (1 m) • 90° elbow is equivalent to 6 ft (2 m) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 42 [3] If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearance shall prevail. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 43 60 in. (1.52 m) vertically between terminals Corner Figure 39 Exhaust Termination Clearances for Internal (Indoor) Room Air Applications 12 in. 12 in. (0.30 m) 60 in. (1.52 m) vertically between terminals Corner Figure 40 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 44 NOTE If ducts are used, the cross sectional area of the duct must be greater than or equal to the required free area of the openings to which they are connected. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 45 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 Tankless Water Heater Installation and Operation Manual...
  • Page 46 Exhaust Vent Pipe 5. Install the exhaust vent pipe. Ensure it is Supplied screw properly seated. Secure the exhaust vent pipe to the exhaust adapter ring with the supplied screw (Figure 46). Figure 46 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 47 Vent Length 65 ft (20 m) 150 ft (46 m) 50 ft. (15 m) • 45° elbow is equivalent to 3 ft (1 m) • 90° elbow is equivalent to 6 ft (2 m) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 48 1/4 in. (6.4 mm) mesh. • The water heater is to be secured to the wall of the manufactured home using the integrated mount- ing brackets on the back side of the water heater. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 49 150 ft RUR199i (REU-NP3237FF-US) 398,000 (20 m) (46 m) (46 m) and RU199i (REU-N3237FF-US) 90 ft 150 ft 150 ft RUR160i (REU-NP2530FF-US) 320,000 (27 m) (46 m) (46 m) and RU160i (REU-N2530FF-US) Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 50: Connect Water Supply

    Boiler Drain Valve accordance with all local building codes. Confer with local building essure Relief Valve officials before installation. Solenoid Valve Figure 53 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 51: Install The Isolation Valves

    7. Ensure that both Drain Valves are in the closed position before turning on water supply. Hot Outlet Cold Inlet Swivel Nut (Integrated Gasket) Drain Valve Hot Isolation Valve Cold Isolation Valve (Red) (Blue) Figure 54 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 52: Install Pressure Relief Valve

    Con- tact the water supplier or local plumbing inspector on how to correct this situation. Do not plug the pressure relief valve. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 53 Figure 55 IMPORTANT • Do not use pipe dope or thread sealant on union fitting with gasket. • Be careful not to lose or throw away the gasket. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 54: Connect Condensate Drain

    • If a floor drain is not available or the drain is above the level of the condensate drain, Condensate a condensate pump should be installed. Pump Figure 57 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 55 5. Turn off the water heater by pressing the “On/ white wires labeled “To Condensate Pump Off” button on the controller. Wait five seconds Safety Switch.” then turn the power back on. This will clear the diagnostic code. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 56 * Safety switch wires connect to the NO and COM contacts on the safety switch. • NO - Normally Open • NC - Normally Closed • COM - Common (Neutral) Figure 60 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 57: Connect The Gas Supply

    Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 58 Answer: 70 (21) (CFH) = 80 (24) For this example, the pipe diameter 90 (27) must be at least 3/4 in. pipe size and 10 ft (3 m) in length. 100 (30) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 59 60 (18) Total Gas 80 (24) 264,000 Btu/hr Input 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 Tankless Water Heater Installation and Operation Manual...

  • Page 60: Connect The Power Supply

    Confirm that the electricity is supplied from 120 VAC, 60 Hz power source and is in a properly grounded circuit. □ Confirm that an extension cord or an adapter plug has NOT been used with the water heater. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 61: Configure Parameter Settings

    Example: Display will change from 01A to 01b for Maximum Temperature setting (as shown below). 6. To exit the parameters, press the “A” button for 1 second. Figure 65 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 62 NOTE: Service Soon (55) will display • Service Soon will appear again based on the selected on the controller again when the water service interval. heater reaches the interval selected in the parameter settings. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 63: External Pump With Circ-Logic

    YES to each question. If you answer NO to any question, installation is not complete. Refer to the applicable section in the Rinnai Tankless Water Heater 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. INSTALLATION LOCATION □...

  • Page 64: Post-Water Heater Installation Checklist

    (Crossover Mode Only) Was the crossover valve installed at the furthest fixture from the water heater? □ □ (Crossover Mode Only) Did you remove the bypass plug Remove Replace with and replace it with the bypass filter? Bypass Plug Bypass Filter Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 65: Operation

    – If you cannot reach your gas supplier, call the fire department. • Installation and service must be performed by a trained and qualified professional, service agency or the gas supplier. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 66 Control System” that offers superior lime scale prevention and corrosion control by feeding a blend of control compounds into the water supply. Damage and repair due to corrosive compounds in the air is not covered by warranty. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 67: Operating Instructions

    3. Turn the manual gas control valve located at gas inlet of appliance clockwise to the OFF 2. Turn off all electric power to the appliance if position. service is to be performed. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 68: Control Panel

     (Up) and  (Down) buttons at the same time until a beep is heard (approximately 3 seconds). Then, release both buttons. To turn on the beeps, repeat the above steps. Figure 68 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 69: Setting The Temperature

    • 20 seconds at 130°F (54°C) • 8 minutes at 120°F (49°C) Children, disabled, or elderly are at highest risk of being scalded. Feel water before bathing or showering. Figure 70 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 70: Performance Data

    3. Use the  (Up) and  (Down) buttons to scroll to the desired information described in the Performance Data Table. Figure 72 4. To exit performance data, repeat step 2 above. 5. When complete, the set temperature appears in the display. Figure 73 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 71 (Outdoor Units Only) Pump Hours x100 Hours Pump Cycles Exhaust Temperature °F * Refer to the Technical Data Sheet located on the inside front cover of the water heater for additional information. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 72: Diagnostic Codes

    Sheet located on inside front cover of water heater. or damage to the heat exchanger. • Ensure it is not in forced Hi setting. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 73 • Follow the steps above for Code 38 for troubleshooting. PC Board • Replace PC Board * See “Electrical Diagnostics” on Technical Data Sheet located on inside front cover of water heater. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 74 To reset the SS code, push the On/Off button on the temperature controller 5 times in 5 seconds. * See “Electrical Diagnostics” on Technical Data Sheet located on inside front cover of water heater. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 75: Configuring Thermacirc360™ Recirculation Pump Settings

    Wired in digital control with integrated timer function for recirculation control. timer function for recirculation control. Contact your local Rinnai installer or call Rinnai Customer Care at 1-800-621-9419. DO NOT install the MC-195T-US Timer/Controller and Control-R™ Wi-Fi Module together as they are not compatible accessories.
  • Page 76 Connection Diagram Hot water outlet with bypass plug/filter PRV Connection Condensate trap drain plug Condensate drain line Gas Connection Check valve drain plug Cold water inlet with filter Water drain plug Figure 81 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 77 Install thermal isolation valve at the furthest fixture from the tankless water heater Condensate Drain Line Floor Drain Gas Supply Line Hot Water Supply Line Cold Water Supply Line Hot Water Fixtures Figure 83 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 78 RUR model runs Pump Status Long Loop Mode (201-400 ft.) Short Loop Mode (Up to 200 ft.) based on time intervals only and not water temperature Economy (like dedicated return line recirculation systems) Comfort Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 79 Gas Supply Line Cold Water Supply Line Hot Water Supply Line Locate Drain Valve as close as possible to the Cold Water Supply Tee Dedicated Recirculation Line Hot Water Fixtures Figure 87 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 80 Comfort: Adjust parameter setting to 05b for Comfort mode. This mode cycles the pump more frequently, ensuring the loop temperature remains higher (but also uses more energy). Table 38 Rinnai Set Temperature Typical Pump OFF Intervals (Minutes) Economy Comfort Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 81: Maintenance

    The vent system should be inspected for flammable vapors and liquids. blockages including snow or other debris or damage. If the vent is blocked and cannot be easily cleared, contact a trained and qualified professional. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 82 Water Filter — Clean the inlet water filter by closing the cold and hot water inlet isolation Blue Flame Figure 90 (shut-off)t valves. Put a bucket under the filter at the bottom of the water heater to catch Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 83: Cleaning And Inspecting The Air Filter (Indoor Units Only)

    • Push the “On/Off” button located on the location if gas is not going to be used. right-hand side of the controller. The dis- play will go blank when the power is off. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 84 • Inspect the air filter for any debris that may restrict air flow to the water heater. • If the filter still appears dirty repeat the cleaning steps. • Replace the air filter. 6. Power ON the water heater. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 85: Flushing The Heat Exchanger

    Damage caused by lime build-up is 13. Restore electrical power to the water heater. not covered by the water heater’s warranty. Rinnai strongly recommends installation of isolation NOTE valves to allow for flushing of the heat exchanger.

  • Page 86: Draining The Water Heater

    Valve 6. Connect power to the water heater. 7. After confirming that the temperature controller is off, turn on the gas supply. Figure 94: Piping Diagram 8. Turn on the temperature controller. Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 87: Appendices

    In with the provisions of 248 CMR 5.08(2)(a)1 addition, the installing plumber or gas fitter through 4. shall observe that a battery operated or hard Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 88 COMBINATION SPACE HEATING/POTABLE WATER SYSTEM (For Use In Commonwealth of Massachusetts) Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 89: Wiring Diagram

    7.2 Wiring Diagram Figure 96 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 90: Ladder Diagram

    7.3 Ladder Diagram Figure 97 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 91: Pressure Drop And Water Flow Curves

    Figure 98 The chart below applies only to incoming water temperatures of 70°F (21°C) or less. For incoming water temperatures greater than 70°F (21°C), please contact Rinnai. NOTE: Maximum flow rates may vary based on set temperature, Delta T and altitude.

  • Page 92: Pressure Drop Curve (Water Heater + Pump)

    7.5 Pressure Drop Curve (Water Heater + Pump) Water Flow (GPM) Figure 100 Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 93: Guidelines For Additional Temperature Controllers

    DO NOT install the MC-195T-US Timer/ Controller and Control-R™ Wi-Fi Module together as they are not compatible accessories. Control R™ Wi-Fi Module Figure 102 Wiring illustration (Detailed wiring instructions included with temperature controller package) Rinnai Tankless Water Heater Installation and Operation Manual...

  • Page 94: Warranty

    For commercial applications, the heat exchanger warranty is 8 years or 12,000 operation hours, whichever occurs first. Notes: From date of purchase, period of coverage is reduced to 8 years or 12,000 operation hours, whichever occurs first, if the Rinnai Tankless Water Heater temperature settings exceed 160°F (71°C).
  • Page 95 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.
  • Page 96 Rinnai America Corporation 103 International Drive Peachtree City, GA 30269 Tel: 1-800-621-9419 100000508(06) Web: rinnai.us 6/2020 rinnai.ca...

This manual is also suitable for:

Sensei+ rur160iSensei+ rur199eSensei+ rur160eReu-np3237ff-usReu-np2530ff-usReu-np3237w-us ... Show all

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