Table of Contents
Advertisement
Quick Links
Register your product at www.rinnairegistration.com or
call 1-866-RINNAI1 (746-6241)
ANS Z21.10.3
●
CSA 4.3
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
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.
Direct Vent Tankless Water Heater
Operation and Installation Manual
R50LSi ................ REU-VA2019FFUD-UC
R75LSi ................ REU-VA2528FFUD(A)-UC
R94LSi ................ REU-VA2535FFUD-UC
R98LSi ................ REU-VA3237FFU-US
R98LSi-ASME ..... REU-VA3237FFU-ASME
FOR INDOOR APPLICATIONS ONLY
Table of Contents .................... 2
Operating Instructions .............. 5
Maintenance ............................ 12
Error Codes ............................. 13
Installation Instructions ............ 17
Consumer Support ................... 42
Advertisement
Table of Contents
Related Manuals for Rinnai REU-VA2019FFUD-UC
Summary of Contents for Rinnai REU-VA2019FFUD-UC
-
Page 1: Table Of Contents
Direct Vent Tankless Water Heater Operation and Installation Manual R50LSi ....REU-VA2019FFUD-UC R75LSi ....REU-VA2528FFUD(A)-UC R94LSi ....REU-VA2535FFUD-UC R98LSi ....REU-VA3237FFU-US R98LSi-ASME ..REU-VA3237FFU-ASME FOR INDOOR APPLICATIONS ONLY Table of Contents ....2 Consumer Safety Information .. 4 Operating Instructions ....5 Maintenance ...... -
Page 2: Table Of Contents
REU-VA3237FFU-ASME This model has been built in accordance with the requirements of the ASME Boiler and Pressure Vessel Code and has received the Certificate of Authorization from the National Board. The heat exchanger on this unit has the NB and HLW stamps. Table of Contents Specifications ............. -
Page 3: Specifications
* Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature. ** for commercial and hydronic applications requiring higher temperatures Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prior notice. -
Page 4: Consumer Safety Information
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. DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. -
Page 5: Operating Instructions
Description of Operation The Rinnai water heater is one of the most advanced Installation of the temperature controller is highly water heaters available. It provides a continuous recommended. The temperature controller can set the supply of hot water at a preset temperature. This... -
Page 6: Temperature Controllers - Models
Temperature Controllers - Models MC-91-1US & MCC-91-1US Dimensions (inches): 3.5 W x 4.75 H x 0.75 D The MC-91 controller is the standard temperature controller that is supplied with the water heater. On indoor models it is integrated into the front panel. The MCC-91 controller is for commercial and hydronic applications requiring higher temperatures. - Page 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...
-
Page 8: Setting The Temperature
98º F and green Priority light will glow 110º F. indicating that this controller is controlling the temperature and that the Rinnai water heater is Check local codes for the maximum NOTICE ready to supply hot water. water temperature setting allowed... -
Page 9: Temperature Ranges
Water temperatures over 125º F (51º C) can cause severe burns or scalding. Refer to the Danger Alert on water temperatures. Rinnai shall not, in any event, be liable for damages resulting from such misuse or misapplication. -
Page 10: Using The Water Smart Bath Fill Function
• Monitor and remain by the bath Over Filling the temperature and that the while the water is running. Rinnai water heater is ready to • Use a low bath fill volume less supply hot water. than 25 gallons 2. Press the “Temp” ▲ or ▼ buttons to obtain the desired temperature setting. -
Page 11: Filling The Tub
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, a tone will sound, and Bath Fill”... -
Page 12: Maintenance
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. -
Page 13: Error Codes
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 of the temperature controller. This assists with diagnosing the fault and may enable you to overcome a problem without a service call. - Page 14 Code Fault Remedy 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.
-
Page 15: Trouble Shooting For Common Issues
I don’t have any hot water when I open the tap. water. Make sure there is gas, water, and electricity to the Rinnai water heater (power is turned on and the gas is Hot water must travel through your plumbing from the turned on). -
Page 16: Flushing The Heat Exchanger
V2. Connect drain hose (H3) to service valve V1. Pour approximately 4 gallons of virgin, food grade, white Rinnai vinegar or citric acid into pail. Water Heater Place the drain hose (H3) and the hose (H2) to the pump inlet into the cleaning solution. -
Page 17: Installation Instructions
R94LSi ....REU-VA2535FFUD-UC Rinnai highly recommends all installers attend a R98LSi ....REU-VA3237FFU-US product knowledge class. For information on a Rinnai Training Course or R98LSi-ASME ..REU-VA3237FFU-ASME for questions on installation call 1-800-621- 9419. General Instructions •... -
Page 18: Clearances From Appliance
Clearances from Appliance to top to Non- to Combustibles Combustibles R50LSi R50LSi R75LSi R98LSi R75LSi R98LSi R94LSi R94LSi Top of 6 inches 12 inches 2 inches 2 inches Heater (152 mm) (305 mm) (51 mm) (51 mm) to side Back of 0 (zero) 0 (zero) 0 (zero) -
Page 19: Electrical Connection
Rinnai water heater. If the Rinnai water heater is not of the gas type that the • The gas supply line shall be gas tight, sized, and so building is supplied with, DO NOT connect the water installed as to provide a supply of gas sufficient to heater. -
Page 20: Pipe Sizing Procedure - Example
(available from the local gas company). The gas input needs to include all gas products at the location and the maximum BTU usage at full load when all gas products are in use. Gas Input of Rinnai water heater (BTU / HR) Cubic Feet per Hour (CFH) = Heating Value of Gas (BTU / FT 2. -
Page 21: Water Piping General Instructions
• Ensure that the water filter on the Rinnai water • Purge the water line to remove all debris and air. heater is clean and installed. -
Page 22: Freeze Protection Piping
Vacuum NOTICE Breaker Warranty does not cover damage due to freezing. With electrical power and gas supplied to a Rinnai water heater, it will not freeze in environments as cold Rinnai as -30º F when protected from direct wind exposure. -
Page 23: Recommended Piping For Basic Installation
Recommended Piping for Basic Installation Rinnai Water Heater Rinnai Equipment List Rinnai Water Heaters RIK-KIT (Optional) (3/4" Fittings Include: 2 Unions, 2 Ball Valves, 2 Drain Valves and 1 Pressure Relief Valve.) 3/4" Hot Water Supply Line For Building Fixtures This is not an engineered drawing. -
Page 24: Recommended Piping For Circulation Systems
IMPORTANT: Connect the building Electric Water return line to the hot water supply line Heater as close as possible to the Rinnai Water Building Heater. Fixtures This is not an engineered drawing. It is intended only as a guide and not as a replacement for professionally engineered project drawings. -
Page 25: Optional Piping For Circulation Systems
The pump should be sized to overcome the pressure loss through the Rinnai water heater, supply and return plumbing. Refer - ence the Rinnai Hot Water System Design Manual, Pump Sizing for Circulation. Pump to be of bronze or stainless construc - tion. -
Page 26: Venting Instructions Intake / Exhaust Guidelines
• If it becomes necessary to access an enclosed vent Vent diameter must not be reduced. system for service or repairs, Rinnai is not responsible • Do not connect the venting system with an existing for any costs or difficulties in accessing the vent vent or chimney. -
Page 27: Maximum Vent Length
Maximum Vent Length 1. Determine the number of 90 degree elbows in the vent system. (Two 45 degree elbows count as one 90 degree elbow. On the R98 models each one foot of semi rigid flex duct used in the air intake length is equivalent to one 90 degree elbow.) 2. -
Page 28: Vent Products
4CGOA 4CGSWC 4CGSWMCM 4CG7HT * When ordering from Rinnai, ask for these part numbers or kits: FSAAU4 - ask for FSAAU4SP (single pack) FSDVPTB04LH - ask for FSDVWMT04LH Kit (includes direct vent pass through FSDVPTB04LH, bird screen, FSRC4 - ask for FSVPK4 Variable Pitch Roof Flashing... -
Page 29: Flue Terminal Clearances (Ans Z21.10.3 ● Csa 4.3 )
Flue Terminal Clearances ( ANS Z21.10.3 ● CSA 4.3) INSIDE CORNER DETAIL FIXED CLOSED OPERABLE FIXED CLOSED AIR SUPPLY INLET OPERABLE VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED Description Canadian Installations US Installations Clearance above grade, veranda, porch, deck, or balcony 12 inches (30 cm) 12 inches (30 cm) Clearance to window or door that may be opened... -
Page 30: Additional Clearances
For VA3237 air intake position, follow the ANS Z21.10.3 ● CSA 4.3 requirements on the previous page. Vent terminal (represents concentric vent terminal or VA3237 exhaust only vent terminal) 60" (1.52 m) vertically between Rinnai terminals (0.91 m) to ventilated or unventilated soffit 36"... -
Page 31: Flue Installation - Concentric Venting (R50Lsi, R75Lsi, R85Lsi)
Flue Installation - Concentric Venting (R50LSi, R75LSi, R85LSi) Horizontal Termination without using the Condensate Collector WARNING * The condensate collector must be used in horizontal terminations if a vertical rise If the condensate collector is not used, the drain pipe in the vent system exceeds 5ft. -
Page 32: Flue Installation (R98Lsi, R98Lsi-Asme)
Flue Installation (R98LSi, R98LSi-ASME) Air Intake Assembly The air intake system consists of a field supplied 4 inch diameter stainless steel, Schedule 40 PVC, ABS or CPVC pipe. A maximum 6 feet of semi-rigid flexible aluminum ducting can also be used. Foil wrapped dryer vent and cell core products are not authorized. - Page 33 Flue Installation (R98LSi, R98LSi-ASME) Horizontal with Concentric Termination SLOPE INTAKE AND EXHAUST TOWARD OUTSIDE TERMINATION MINIMUM 1/4" PER FOOT Vertical Terminations The air intake requires a return bend or two 90º elbows to prevent entry of rain. The vent termination and air intake must be in the same pressure zone. VA Series Indoor LS Manual...
-
Page 34: High Altitude Installation
High Altitude Installations Set dip switches 2 and 3 to the values shown in table WARNING DO NOT adjust the other dip below for your altitude. The default setting for the switches unless specifically appliance is 0-2000 ft (0-610 m) with switches No. 2 instructed to do so. -
Page 35: Temperature Controller Installation
Temperature Controller Installation Indoor models have their controller built into the front panel. A kit is available that allows the integrated controller to be removed and used as a remote controller. Additional controllers can also be installed. Location • • The controller should be out of reach of small Avoid locations where the temperature controller children. -
Page 36: Mounting The Controller
2. Outline of Remote 7. Disconnect the power from the Rinnai water heater. 8. Remove the cover of the Rinnai water heater. securing screw 9. Remove the plastic cover from the PCB and 1-21/32" electrical connections. -
Page 37: Operating Instructions
Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is •... -
Page 38: Technical Data
Technical Data Pressure Drop Curve R94LSi R98LSi R75LSi R50LSi Water Flow (gpm) Outlet Flow Data R98LSi 10.0 R94LSi R75LSi R50LSi delta T - Temperature Rise (ºF) VA Series Indoor LS Manual... -
Page 39: Space Heating
Iron Components Do not use Rinnai water heaters directly for space heating applications involving iron radiators or applications with any iron components. Iron components may oxidize creating rust that will clog the inlet filter of the Rinnai water heater. VA Series Indoor LS Manual... -
Page 40: Dimensions
Dimensions R50LSi, R75LSi, R94LSi R98LSi, R98LSi-ASME 10.8600 DESCRIPTION R50LSi R98LSi R75LSi R98LSi-ASME in (mm) R94LSi in (mm) Width 14 (355.6) 18.5 (470) Depth * 9.6 (244.5) 9.1 (230.5) Height - Unit 22.9 (582) 23.6 (600) Height - with brackets 25.5 (648.2) 25.2 (639.8) Hot Water Outlet - from wall * 3.6 (91) -
Page 41: Ladder Diagram
Ladder Diagram NEUTRAL FROST SENSING 3A(FUSE) SWITCH 3A(FUSE) ARRESTER ANTI-FROST HEATER VARISTOR VARISTOR IGNITION RELAY 1 SWITCHING POWER SUPPLY DC12V DC170V DC40V DC12.6V DC5V WATERFLOW MODULATING SENSOR SOLENOID VALVE WATERFLOW MODULATING SENSOR VALVEPOWER CIRCUI T CONTROL WATERFLOW CIRCUI T CONTROL DEVICE WATERFLOW CONTROL DEVICE CIRCUI T... -
Page 42: Consumer Support
(except when an MCC-91 is used with a Rinnai Hydronic Air Handler). The integrated controller on indoor models has a 1 year warranty on parts. † Note: Period of coverage is reduced to 3 years from date of purchase if the Rinnai water heater temperature setting exceeds 160º F (71º C). - Page 43 Replacement of the product may be authorized by Rinnai only. Rinnai does not authorize any person or company to assume for it any obligation or liability in connection with the replacement of the product. If Rinnai determines that repair of a product is not possible, Rinnai will replace the product with a comparable product at Rinnai’s discretion.
- Page 44 • Up to 83% AFUE Energy Efficiency • Zero-Clearance Installation • Available in Four Options of Fronts • Remotes and Fan Included • Gas Conversion Kit Available Hydronic Air Handler Designed for Use with Rinnai Systems • Domestic Hot Water Priority • Optional Programmable Thermostat •...