Rinnai RU160i Installation And Operation Manual

Rinnai RU160i Installation And Operation Manual

Tankless water heater

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INTERNAL (INDOOR) MODELS:
RU199i (REU-N3237FF-US)
RU180i (REU-N2934FF-US)
RU160i (REU-N2530FF-US)
RU130i (REU-N2024FF-US)
EXTERNAL (OUTDOOR) MODELS:
RU199e (REU-N3237W-US)
RU180e (REU-N2934W-US)
RU160e (REU-N2530W-US)
RU130e (REU-N2024W-US)
Place
Model/Serial #
Label Here
Located in Manual Bag
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.
Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
AVERTISSEMENT
Ne pas entreposer ni utiliser d'essence ou ni d'autres vapeurs ou liquides inflammables à proximité de cet appareil
ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
Ne pas tenter d'allumer d'appareil.
Ne touchez à aucun interrupteur ; ne pas vous servir des téléphones se trouvant dans le bâtiment.
Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.
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 qualifié ou par le
fournisseur de gaz.
Rinnai Customer Care 1-800-621-9419
Rinnai Tankless Water Heater Installation and Operation Manual
Tankless Water Heater
Installation and Operation Manual
Assurez-vous de bien suivre les instructions données dans cette notice
pour réduire au minimum le risque d'incendie ou d'explosion ou pour
éviter tout dommage matériel, toute blessure ou la mort.
Full-length French and Spanish versions
available online at rinnai.us
ANSI Z21.10.3 ● CSA 4.3
U334-0771(02)
rinnai.us
06000012336368

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Summary of Contents for Rinnai RU160i

  • Page 1 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 qualifié ou par le fournisseur de gaz. Rinnai Customer Care 1-800-621-9419 rinnai.us U334-0771(02) Rinnai Tankless Water Heater Installation and Operation Manual 06000012336368...
  • Page 2: Table Of Contents

    6.3 Pressure Drop and Water Flow Curves ...................... 68 6.4 Guidelines for Additional Temperature Controllers .................. 69 6.5 Massachusetts State Gas Regulations ....................... 70 6.6 Warranty ..............................72 7. Notes ..............................74 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 3: Thank You

    Thank You Thank you for purchasing a Rinnai Tankless Water Heater. Before installing and operating this water heater, be sure to read these instructions completely and carefully to familiarize yourself with the water heater’s features and functionality. If You Need Service...
  • Page 4: Safety

    WARNING personal injury or death. Indicates a potentially hazardous situation which, if not avoided, could result in minor CAUTION or moderate injury. It may also be used to alert against unsafe practices. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 5: Safety Precautions

    • control system and any manual gas control valve Rinnai recommends that every home have a carbon which has been under water. monoxide (CO) alarm in the hallway near bedrooms in (N’utilisez pas cet appareil s’il a été plunge dans l’eau, each sleeping area.
  • Page 6: About The Water Heater

    2. About the Water Heater 2.1 Items Included Unpack the Rinnai Tankless Water Heater package and verify the following contents are included. If any items are missing, contact your local dealer/distributor or call Rinnai Customer Care at 1-800-621-9419. • Rinnai Tankless Water Heater •...
  • Page 7: 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 8: Specifications

    Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature. Minimum activation flow is 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 9: Dimensions

    2.6 Dimensions Measurements: in. (mm) Internal (Indoor) Models (RU199i, RU180i, RU160i, and RU130i) Front Panel View Side Panel View Vent Connection: 2 in. (51 mm) nominal PVC/Polypropylene or 3 in./5 in. Concentric. External (Outdoor) Models (RU199e, RU180e, RU160e, and RU130e)
  • Page 10 Connections (for Internal and External Water Heaters) Measurements: in. (mm) Bottom View of Water Heater Pressure Relief Valve (PRV) M33 THREAD Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 11: Install The Water Heater

    Gas sizing; Connecting gas lines, water lines, valves, and electricity; Knowledge of applicable national, state, and local codes; Installing venting through a wall or roof; and training in installation of tankless water heaters. Training for Rinnai Tankless Water Heaters is accessible online at www.trainingevents.rinnai.us. 3.1 Installation Guidelines When installing the water heater, follow these guidelines: •...
  • Page 12: Choose An Installation Location

    Water Quality Guidelines This section provides information on the importance of water quality to the Rinnai Tankless Water Heater. The information is intended to serve as general guidelines only and is not a complete list of water quality guidelines.
  • Page 13 Pipe cover enclosures may be packed 1/2 in. Normally Open Solenoid Valve with insulation for added freeze protection. Route Drain Per Local Code Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 14 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 Tankless Water Heater Installation and Operation Manual...
  • Page 15: Mount The Internal (Indoor) Water Heater To The Wall

    “2.5 Specifications.” Bottom IMPORTANT: The water heater must be installed in Bracket an upright position. Do not install the water heater upside down or on its side. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 16: Mount The External (Outdoor) Water Heater To The Wall

    “2.5 Specifications.” IMPORTANT: The water heater must be installed in an upright position. Do not install the water heater upside down or on its side. Bracket Level Bottom Bracket Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 17: Vent The Water Heater

    DO NOT connect the venting system with an existing vent or chimney. DO NOT common vent with the vent pipe of any other manufacturer’s water heater or appliance. Rinnai water heaters can only be common vented with Schedule 40 PVC/CPVC or with a Rinnai certified common vent system.
  • Page 18 • Where condensate or vapor could cause damage or could be detrimental to the operation of regulators pressure relief valves, or other equipment. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 19 Exhaust Exhaust Combustion Air Room Air For Combustion Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 20 2/4 Condensing 45 Degree Diverter Nose (Use with Wall Terminal) 196005, 197040 FGV Concentric Vent Kit (16 in. length) 196105, 197033 FGV Concentric Vent Kit (28 in. length) 196125 FGV Concentric Vent Kit (40 in. length) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 21 2 in. x 4 in. Horizontal Termination Kit-Concentric 190288 2 in. x 4 in. Concentric Horizontal Termination 190295 2 in. x 4 in. Concentric Vertical Termination CVENT-2 2 in. x 4 in. Concentric Horizontal Termination Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 22 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 Tankless Water Heater Installation and Operation Manual...
  • Page 23 3 in. x 5 in. Horizontal Termina- tion Kit-Concentric 190388 3 in. x 5 in. Concentric Horizontal Termination 190395 3 in. x 5 in. Concentric Vertical Termination CVENT-3 3 in. x 5 in. Concentric Horizontal Termination Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 24 2 in. Black UV Resistant Tee 196984 FGV PVC Low Profile Termination Kit 081216 FGV PVC Wall Termination 52SWVKGVS6502 PVC Side Wall Vent Kits 52WTVKGVS6502 PVC Wall Vent Kits HVENT-2 2 in. Low Profile Horizontal Vent Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 25 3 in. Black UV Resistant Tee 196985 FGV PVC Low Profile Termination Kit 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 Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 26 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 27 (Dégagement conforme aux codes [2] Permitted only if veranda, porch, deck, or balcony is fully open on a mini- d’installation locaux et aux exigences du foumisseur de gaz.) mum of two sides beneath the floor. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 28 60 in. (1.52 m) vertically 12 in. (0.30 m) between terminals 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. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 29 Important: Install the venting termination according to the diagrams and instructions in this manual. Slope the venting 1/4 in. per foot toward the appliance according to the vent manufacturer’s installation instructions. Dispose of condensate per local codes. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 30 Combustion air termination not permitted in shaded area Horizontal Vent and Combustion Air Piping For illustration purposes only. Listed equivalent length is based on worst case scenario of 3 X 90° elbows or 18 equivalent ft. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 31 Exhaust Vent Pipe 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. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 32 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 33 (Dégagement conforme aux codes [2] Permitted only if veranda, porch, deck, or balcony is fully open on a mini- d’installation locaux et aux exigences du foumisseur de gaz.) mum of two sides beneath the floor. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 34 (0.30 m) 60 in. (1.52 m) vertically between terminals Inside Corner Exhaust Termination Clearances for Internal (Indoor) Room Air Applications 12” 12” (0.30 m) 60” (1.52 m) vertically between terminals Inside Corner Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 35 /kW) of total input rating of all appliances in the confined space. 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 36 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 37 Install the exhaust vent pipe. Ensure it is properly seated. Exhaust Vent Pipe Secure the exhaust vent pipe to the exhaust Supplied screw adapter ring with the supplied screw. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 38 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 39 The water heater is to be secured to the wall of the manufactured home using the integrated mounting 130 in 13 in. x 10 in. RU130i 130,000 brackets on the back side of the water heater. (0.0839 m (330 mm x 254 mm) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 40 Common Vent (Indoor Units Only. Direct Vent and Non-Direct/Room Air Vent) Common venting allows multiple Rinnai Tankless Water Heaters to share the same vent system. When operating multiple water heaters in a common venting system, it is recommended to use Rinnai’s EZConnect™ cable (purchased separately) which electronically connects two water heaters so they function as one hot water source.
  • Page 41: Connect The Water Supply

    (1/2 in. NPT). Refer to section “3.9 Condensate” for more information. Condensate Drain Line Floor Drain Gas Supply Line Cold Water Supply Line Hot Water Supply Line Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 42: Install The Isolation Valves

    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) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 43: Pressure Relieve Valve

    The pressure relief line should allow for complete drainage of the valve and the line. DO NOT place any other valve or shutoff device between the pressure relief valve and the water heater. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 44 Assembly can rotate 360° to accommodate the application. NOTICE: DO NOT use pipe dope or thread sealant on union fitting with gasket. NOTICE: Be careful not to lose or throw away the gasket. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 45: Condensate

    Use only corrosion resistant materials for the pump should be installed. condensate drain lines such as PVC pipe or plastic • A condensate neutralizer kit is available from Rinnai. hose. The kit allows condensate to flow through • The condensate drain pipe (along its entire length)
  • Page 46 NO - Normally Open • NC - Normally Closed • COM - Common (Neutral) Condensate Pump (installer-supplied) Includes internal safety switch and power cord. Power cord must be plugged into power source. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 47: Connect The Gas Supply

    8. Perform a leak and pressure test prior to operating the water heater. If a leak is detected, do not operate the water heater until the leak is repaired. Gas connection 3/4 in. MNPT connection Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 48 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 Tankless Water Heater Installation and Operation Manual...
  • Page 49 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 Tankless Water Heater Installation and Operation Manual...
  • Page 50: 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 51: Parameter Settings

    Comfort mode cycles the pump more frequently, ensuring the loop temperature remains higher (but also uses more energy). BMS = Building Management System Selecting “High” will increase the water flow rate to the maximum capacity. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 52: External Pump With Circ-Logic

    3.13 External Pump with Circ-Logic Rinnai SENSEI™ Tankless Water Heaters include Circ-Logic technology that offers the comfort and convenience of instant hot water with the use of an external recirculation pump. Circ-Logic controls the on/off sequence and operation cycles of the external recirculation pump through the programming of the tankless water heater’s parameter settings.
  • Page 53: Service Indicator (Service Soon, 55)

    Complete the following checklist when water heater installation is complete. You should be able to answer 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.
  • Page 54 Did you install a manual gas control valve in the gas line to the water heater?   Is the inlet gas pressure within limits?   Did you purge the gas line of any debris before connecting the water heater? Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 55: Operate The Water Heater

    If you install this water heater in an area that is known to have hard water or that causes scale build-up the water must be treated and/or the heat exchanger flushed regularly. Rinnai provides a “Scale Control System” that offers superior lime scale prevention and corrosion control by feeding a blend of control compounds into the water supply.
  • Page 56: Controller

    Note: The display flashes between and the set temperature to indicate the controller is locked. To unlock the controller, follow the above steps. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 57: Setting The Temperature

    (Down) buttons to obtain the desired temperature setting. All hot water sources are able to provide water at this temperature setting until it is changed again at this or another temperature controller. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 58: Performance Data

    * Refer to the Technical Data Sheet located on the inside * Refer to the Technical Data Sheet located on the inside front cover of the water heater for additional information. front cover of the water heater for additional information. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 59: Diagnostic Codes

    Check gas solenoid valves for open or short circuits.* • Electrical Grounding Verify gas orifice is correct. • Check all components for electrical short. * See “Electrical Diagnostics” on Technical Data Sheet located on inside front cover of water heater. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 60 Enter this code after performing service by pressing (Up) , (Down) and On/Off simultaneously. • is visible on the monitor. * See “Electrical Diagnostics” on Technical Data Sheet located on inside front cover of water heater. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 61: Maintain The Water Heater

    Do not use a wet cloth or spray cleaners on the burner. Do not use volatile substances such as benzene and thinners; they may ignite or fade the paint. 4. Use soft dry cloth to wipe cabinet. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 62 Disconnect the power supply by either unplugging the electrical cord or by turning off the circuit FLAME ROD breaker to the water heater to prevent potential damage from irregular power surges or interruptions. YELLOW FLAME Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 63: Cleaning And Inspecting The Air Filter (Indoor Units Only)

    • Remove the air filter by pulling out the “FILTER Pull to Clean” tab. NOTE: Do not operate this water heater if the air filter is not in place. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 64: Flushing The Heater Exchanger

    SS code will display on the controller indicating that it is time to flush and service the water heater. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the water heater’s warranty. Rinnai strongly recommends installation of isolation valves to allow for flushing of the heat exchanger.
  • Page 65: Draining The Water Heater

    2. Close the gas and water valves and turn off the power. 3. Wait until the water thaws. Check by opening the water supply valve. 4. Check the water heater and the piping for leaks. Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 66: Appendices

    6. Appendices 6.1 Wiring Diagram Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 67: Ladder Diagram

    6.2 Ladder Diagram Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 68: Pressure Drop And Water Flow Curves

    Water Flow (GPM) 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 69: Guidelines For Additional Temperature Controllers

    6.4 Guidelines for Additional Temperature Controllers All Rinnai Tankless Water Heaters are equipped with an Cable Lengths and Sizes integrated digital temperature controller that allows for a precise water temperature set-point. Additional digital The temperature controller cable should be a...
  • Page 70: Massachusetts State Gas Regulations

    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 Tankless Water Heater Installation and Operation Manual...
  • Page 71 Massachusetts State Regulations (Continued) COMBINATION SPACE HEATING/POTABLE WATER SYSTEM (For Use In Commonwealth of Massachusetts) Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 72: Warranty

    For residential applications, the heat exchanger warranty is 15 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 73 How to Obtain Service For the name of a trained and qualified professional, please contact your place of purchase, visit the Rinnai website (www.rinnai.us), call Rinnai at 1-800-621-9419 or write to Rinnai at 103 International Drive, Peachtree City, Georgia 30269.
  • Page 74: Notes

    7. Notes Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 75 Notes Rinnai Tankless Water Heater Installation and Operation Manual...
  • Page 76 100000467(05) 8/2019 Rinnai Tankless Water Heater Installation and Operation Manual...

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