Summary of the content on the page No. 1
Tankless Water Heater
Operation and Installation Manual
V53i ..................... REU-VB2020FFU-US
V53e .................... REU-V AM1620W-US
Certified for installation in manufactured (mobile) homes.
Table of Contents ..................... 2
Consumer Safety Information .. 4
Operating Instructions .............. 5
Maintenance .......................... 12
Error Codes ............................ 13
V53i V53e
Installation Instructions .......... 17
Consumer Support .................
Summary of the content on the page No. 2
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 ............................ 22 Consumer Safety Information Manual draining of the water heater
Summary of the content on the page No. 3
Specifications Model V53e V53i 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) 1
Summary of the content on the page No. 4
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
Summary of the content on the page No. 5
MC-502 BC-100 MC-100 MCC-91 MC-91 Operating Instructions The V53i and V53e models do not come with a temperature controller. There are several models of temperature controllers that can be purchased separately. Their description, operation, and installation are provided in this manual in case a temperature controller is purchased and installed. A maintenance display or status monitor is provided in the front panel to indicate operating status and error codes. The temperature contr
Summary of the content on the page No. 6
Temperature Controllers - Models MC-91-1US & MCC-91-1US Dimensions (inches): 3.5 W x 4.75 H x 0.75 D In Use Indicator Priority Indicator Temperature Display Priority Button Temperature Selection ON/OFF Button MC-502RC-1US-S * (Wireless) Dimensions (inches): 4.33 W x 5.90 H x 1.16 D Priority Temperature Indicator Display In Use Temperature Indicator Selection Priority ON/OFF Button Button * Requires the transceiver, MC- 502RC-1US-M, to be connected to the water heater. R
Summary of the content on the page No. 7
Temperature Controllers - Models BC-100V-1US Dimensions (inches): 8.0 W x 4.125 H x 0.875 D The BC-100V controller is water resistant. Avoid splashing the controller. NOTICE Temperature Water Smart In Use Display Bath Fill Indicator Indicator ON/OFF Priority Button Button and Indicator Water Smart Bath Fill Call Button Power Save Clock Water Volume Temperature Sound Volume Selection MC-100V-1US Dimensions (inches): 5.0 W x 4.75 H x 0.75 D Temperature In Use Selection I
Summary of the content on the page No. 8
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 thermostat is set too high. Water temperatures over 125º F (52º C) can cause severe burns or scalding resulting in death. Hot water can cause first degree burns with exposure for as little as: 3 seconds at 140º F (60º C) 20 seconds at 130º F (54º C) 8 minutes at 120º F (49º C) Test the temperatur
Summary of the content on the page No. 9
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 V53i 98 100 102 104 106 108 110 115 120 125 130 135 140 V53e * * Temp in Celsius ºC 37 38 39 4
Summary of the content on the page No. 10
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.
Summary of the content on the page No. 11
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
Summary of the content on the page No. 12
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
Summary of the content on the page No. 13
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
Summary of the content on the page No. 14
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
Summary of the content on the page No. 15
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
Summary of the content on the page No. 16
In-line Filter Gas Supply Cold Water Line Hot Water 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 po
Summary of the content on the page No. 17
Installation Instructions Only properly trained and qualified installers should install this appliance. The warranty may V53i .................... REU-VB2020FFU-US be voided due to improper installation or V53e ................... REU-VAM1620W-US installation by a non-qualified installer. Rinnai highly recommends all installers attend a product knowledge class. The V53i and V53e are certified for installation in manufactured (mobile) homes. For information on a Rinnai Training Co
Summary of the content on the page No. 18
to Non- Combustibles to Combustibles to Non- Combustibles to Combustibles Clearances from Appliance V53i V53e 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 0 (zero) 0 (zero) Back of 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 m
Summary of the content on the page No. 19
Electrical Connection V53i 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/
Summary of the content on the page No. 20
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
