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Tankless Water Heater
Operation and Installation Manual
RV53i .................. REU-VB2020FFU-US
RV53e ................. REU-VAM1620W-US
Certified for installation in manufactured (mobile) homes.
Table of Contents .............................................. 2
Consumer Safety Information ........................... 4
Operating Instructions ....................................... 5
Maintenance ..................................................... 9
Error Codes ........................
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California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm. This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself. Table of Contents Specifications ..................................................... 3 Freeze Protection Methods ............................ 20 Consumer Safety Information Manual draining of the water heater
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Specifications RV53e Model RV53i Minimum Gas Consumption Btu/h 15,000 20,200 (LP) 19,000 (NG) Maximum Gas Consumption Btu/h 150,000 120,000 Hot water capacity (Min - Max) * 0.6 - 5.3 GPM (2.4 - 20.0 L/min) Hot water capacity (45°F rise) 5.3 GPM (20.0 L/min) 4.2 GPM (16.0 L/min) Temperature Settings (without temperature 120º F (49º C), default or 140º F (60º C) controller) Temperature Controller Default Setting 104º F (40º C) Maximum Temp Setting (residential)
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Consumer Safety Information Safety Definitions This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. Indicates an imminently hazardous situation which, if not avoided, will result in death or DANGER serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or WARNING serious injury. Indicates a potentially hazardous situation which, if not avoi
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Operating Instructions The RV53i and RV53e models do not come with a temperature controller. There are several models of temperature controllers that can be purchased separately. A maintenance display or status monitor is provided in the front panel to indicate operating status and error codes. How to Set the Temperature Hot water can be dangerous, especially for infants or children, the elderly, DANGER or infirm. There is hot water scald potential if the
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Temperature Controller Settings This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time. The available temperatures for a given model are provided below. Model Temperature Settings Available (ºF) 150 160 RV53i 98 100 102 104 106 108 110 115 120 125 130 135 140 RV53e * * Temp in Celsius ºC 37 38 39
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Using the Water Smart / Bath Fill Function The bath fill function will not work Overview NOTICE properly if it is connected to multiple water heaters. The tub will overfill This function is exclusive to the BC-100V temperature Multiple because the bath fill function is not controller. The bath fill function allows the consumer able to measure the water volume to fill a tub with a preset volume of water at a preset Water when connected to multiple water temperature.
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Using the Water Smart / Bath Fill Function Filling the Tub 1. Press the “Water Smart / Bath Fill” To stop the water flow during the Bath NOTICE button once. The button will Fill function, press the “Water Smart / illuminate, and a tone will sound. Bath Fill” button. The button will flash To Stop the and the voice prompt will announce, 2. The voice prompt will announce “Hot water is not available. Turn off Bath Fill “The hot water system is ready. all hot water t
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Maintenance Snow Accumulation WARNING Keep the area around flue terminal free of snow and Turn off the electrical power supply, the manual gas ice. The appliance will not function properly if the valve and the manual water control valve whenever intake air or exhaust is impeded (blocked or partially servicing the unit. blocked) by obstructions. Repairs and maintenance should be performed by a Visual Inspection of Flame qualified service technician. The
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Error Codes The Rinnai water heater has the ability to check its own operation continuously. If a fault occurs, an error code will flash on the display in the front panel and on the temperature controller if installed. This assists with diagnosing the fault and may enable you to overcome a problem without a service call. Please identify the code displayed when inquiring about service. Front Panel Display Indications - - Standby (power is supplied but there is no deman
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Error Code Table Code Fault Remedy 14 Thermal Fuse Check gas type of unit and ensure it matches gas type being used. Check for restrictions in air flow around unit and vent terminal. Check for low water flow in a circulating system causing short-cycling. Ensure dip switches are set to the proper position. Check for foreign materials in combustion chamber and/or exhaust piping. Check heat exchanger for cracks and/or separations. Check heat exchanger surface for hot sp
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Trouble Shooting for Common Issues I don’t have any hot water when I open the tap. White smoke comes out of the exhaust. Make sure there is gas, water, and electricity to the During colder weather when the exhaust temperature Rinnai water heater (power is turned on and the gas is is much hotter than the outside air, the exhaust fumes turned on). condense producing water vapor. When I was using the hot water, the water got cold. When I open a hot tap, I do not immediately get
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In-line Filter Gas Hot Cold Supply Water Water Line Line Flushing the Heat Exchanger (Error Code: LC or 00) An “LC” or “00” error code indicates the unit is beginning to lime up and must be flushed. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the unit’s warranty. After flushing, reset the LC fault code by turning off the power to the unit and turning the power back on. KEY 1. Disconnect electrical
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Installation Instructions Only properly trained and qualified installers should install this appliance. The warranty may RV53i .................. REU-VB2020FFU-US be voided due to improper installation or RV53e ................. REU-V AM1620W-US installation by a non-qualified installer. Rinnai highly recommends all installers attend a product knowledge class. The RV53i and RV53e are certified for installation in manufactured (mobile) homes. For information on a Rinnai Training C
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to Non- Combustibles to Combustibles to Non- Combustibles to Combustibles Clearances from Appliance RV53i RV53e to top Top of 6 inches * 2 inches * Top of 12 inches 2 inches Heater (152 mm) (51 mm) Heater (305 mm) (51 mm) to side Back of Back of 0 (zero) 0 (zero) 0 (zero) 0 (zero) Heater Heater Front of 6 inches 6 inches Front 24 inches 0 (zero) Heater (152 mm) (152 mm) (Panel) (610 mm) Sides of 2 inches 1/2 inch Front 24 inches 24 inches Heater (51
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Electrical Connection RV53i The water heater requires 120 VAC, 60 Hz power from a properly grounded circuit. If using the 6 foot long power cord, plug it into a standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet. The wiring diagram is located on the Technical Sheet attached to the inside of the front cover. The water heater must be electrically grounded in accordance with local codes, or in the absence of local codes with the National Electrical Code, ANSI
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Gas Piping Pipe Sizing Procedure - Example The gas supply must be capable of handling the entire gas load at the location. Gas line sizing is based on gas type, the pressure drop in the system, the gas pressure supplied, and gas line type. For gas pipe sizing in the United States, refer to the National Fuel Gas Code, NFPA 54. For Canadian gas pipe sizing, refer to the Natural Gas and Propane Installation Code CAN/CSA B149.1. The below information is provided as a
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Water Piping Isolation Valves and Pressure Relief Valve The isolation valves provide the ability to isolate the water heater from the structure’s plumbing and allow quick access to flush the heat exchanger. Check with local codes to determine if a pressure and temperature relief valve is required. The included valves meet C American National Standard (ANSI Z21.10.3) / A Canadian Standard (CSA 4.3) and are ANSI/NSF 65 D approved for potable water. Isolation
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General Instructions • A manual water control valve must be placed in the • Toxic chemicals such as those used for boiler water water inlet connection to the Rinnai water heater treatment are not to be introduced to the potable before it is connected to the water line. Unions may water used for space heating. be used on both the hot and cold water lines for • If the appliance will be used as a potable water future servicing and disconnection of the unit. source, it must not be connecte
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Freeze Protection Methods Manual draining of the water heater To avoid burns, wait until the equipment cools down before draining the water. The WARNING water in the appliance will remain hot after it is turned off. If the water heater is not going to be used during a period of possible freezing weather, it is recommended that the water inside the water heater be drained. To manually drain the water: 1. Shut off cold water supply and gas supply. Hot water Hot wa
