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Rinnai R50LSI User's Manual

1. 100 40 5n R9O4LSi R98LSi 35 80 230 10 R75LSi icd iE 25 60 d 9 R50LSi A T D 20 2 o 40 5 15 30 CL 10 20 5 10 0 0 0 2 4 6 8 10 12 Water Flow gpm Outlet Flow Data 10 0 9 0 8 0 E 70 DQ gt 6 0 E 5 0 40 3 0 2 0 1 0 0 0 delta T Temperature Rise F 38 VA Series Indoor LS Manual Space Heating If the water heater is to be used for both water potable heating and space heating then the following apply e The piping and components connected to the water heater shall be suitable for use with potable water e Toxic chemicals such as used for boiler treatment shall not be introduced into the potable water e The water heater shall not be connected to any heating system or components previously used with a nonpotable water heating appliance e When the system requires water for space heating at temperatures higher than required for other uses a means such as a mixing valve shall be installed to temper the water for other uses in order to reduce the scald hazard potential Space heating applications are considered commercial applications for warranty purposes Temperature Setting When using this appliance to provide domestic hot water it is recommended that the domestic hot water temperature be re
2. Register your product at www rinnairegistration com or call 1 866 RINNAI1 746 6241 Direct Vent Tankless Water Heater a Operation and Installation Manual R50LSi REU VA2019FFUD 751 REU VA2528FFUD A R94L Si REU VA2535FFUD R98LSi REU VA3237FFU R98LSi ASME REU VA3237FFU ASME FOR INDOOR APPLICATIONS ONLY Table of Contents Consumer Safety Information 4 Operating Instructions Maintenance Error Codes Installation Instructions Consumer Support 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 ANS Z21 10 3 e CSA 4 3 Installation and service must be performed by a qualified installer service agency or the gas supplier 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 C
3. Maximum Height 5 feet 1 52 m Regions of cold climate will create more condensate in the vent system The condensate collector should be used in cold climates If more than one elbow is used in the vertical section the condensate F collector must be used Horizontal Termination using Vertical Termination the Condensate Collector condensate collector must be used in all installations Condensate Trap NAM in 75 mm minimum 3i in 75 mm in 75 mm di d 1 minimum To adjust the condensate collector position or to packet replace the female vent top with a male vent top Condensate Collector E 1 Loosen the 4 screws at the rear bracket Slide the bracket away from the female vent top Remove the 4 screws attaching the female vent top to the water heater Lift up the female vent top and reposition as desired or replace with a male vent top Install the 4 screws at the vent top and tighten the 4 screws at the bracket Secure the first vent component to the water heater with one self tapping screw at the hole located above the condensate collector lt F hm Securing Screw VA Se
4. 9 Circulation Systems 24 Setting the Sound 9 Optional Piping for Circulation Systems 25 Setting the Clock 9 Venting Instructions Using the Water Smart Bath Fill Function 10 Intake Exhaust Guidelines 26 OV CIVIC WE 10 cs 26 Setting the Water Volume 10 Maximum Vent Length 2f Filling the Tub 11 Vent Products esssss 28 Setting Controller to Mute 11 Flue Terminal Clearances Maintenance ANS Z21 10 3 e CSA 4 3 29 Cleaning uvis sedare tss vto Mi ES Sid cds 12 Additional Clearances 30 Vent System a ra Daft e navel ala utenti tcl wee E cdd du d dnd qu di 12 Flue Installation Concentric Venting MOTOTS dust oodd Manto oodd 12 R50LSi R75LSi R85LSi ee 31 Temperature Controller 12 Flue Installation Lime Scale Buildup 12 R98LSi R98LSi ASME 32 33 Snow Accumulation 12 High Altitude Installation 34 Visual Inspecti
5. Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace e Any alteration to the appliance or its controls can be any part of the control system and any gas control dangerous and will void the warranty which has been under water e Always check the water temperature before entering a shower or bath Safety Features e Overheat The appliance will automatically shut e Power Surge Fuse A glass fuse protects against down when the appliance exceeds a predetermined overcurrent If the fuse blows then all indicator temperature lamps will be off e Flame Failure The appliance will automatically e Fusible Link In case the overheat feature does shut down if the burner flame is extinguished not prevent the temperature from rising then the e Power Failure The appliance will cut off the gas if fusible link will break shutting off the appliance it loses electrical power 4 VA Series Indoor LS Manual 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 temperature within a specific range and can provide appliance is direct vent where air is brought in from the error codes to diagnose any problems outside and c
6. _ 2 Clesrnceowndow or soor tat maybe pened e tem _12 hes Gem Ea vy Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet 61 cm from the center line of the terminal 3 feet 91 cm within a height 15 feet 4 5 m above the meter regulator assembly Clearance to each side of center line extended above meter regulator assembly 1 Clearance to service regulator vent outlet to service Clearance to service regulator vent outlet vent outlet 91cm inches 91 36 inches 91cm L pere to nonmechanical air supply inlet to building or the 36 inches 91 cm 12 inches 30 cm combustion air inlet to any other appliance EX Clearance to a mechanical air supply inlet 6 feet 1 83 m a ele L Clearance above paved sidewalk or paved driveway located on 7 feet 2 13 m public property Clearance under veranda porch deck or balcony 12 inches 30 cm a A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in ANSI Z223 1 NFPA 54 or CSA B149 1 clearances in accordance with local installation codes and the requirements of the gas supplier Clearance to opposi
7. o N EN SLOPE INTAKE AND EXHAUST TOWARD OUTSIDE TERMINATION The vent termination and air 12 MIN ABOVE MINIMUM 1 4 PER FOOT intake must be in the same pn PAPEL M pressure zone and face the NOW LEVE SS same direction N 32 VA Series Indoor LS Manual Flue Installation R98LSi R98LSI ASME Horizontal with Concentric Termination 7 7 7 Ee E a nt r PENES EN SLOPE INTAKE AND EXHAUST TOWARD OUTSIDE TERMINATION MINIMUM 1 4 PER FOOT SP i Vertical Terminations The air intake requires a return bend or two 90 elbows to prevent entry of rain The vent termination and air intake must be in the same pressure zone N J RR ayo EVAAA AAA AAAI v ODO OU OU ND OGUDUOOO FEARG Sl Pee i VA Series Indoor LS Manual 33 High Altitude Installations Set dip switches 2 and 3 to the values shown in table below for your altitude The default setting for the a
8. may result causing property damage personal injury or loss of life A This appliance does not have a pilot Itis e f you cannot reach your gas supplier call the equipped with an ignition device which fire department automatically lights the burner Do not try to light the burner by hand C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not B BEFORE OPERATING smell all around the push in or turn by hand do not try to repair it call a appliance area for gas Be sure to smell next to qualified service technician Force or attempted the floor because some gas is heavier than air and repair may result in a fire or explosion ill he floor will settle on the floor D Do not use this appliance if any part has been WHAT TO DO IF YOU SMELL GAS under water Immediately call a qualified service e Do not try to light any appliance technician to inspect the appliance and to replace e Do not touch any electric switch do not use any any part of the control system and any gas control phone in your building which has been under water e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions ee OPERATING INSTRUCTIONS BEI STOP Read the safety information above 6 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information 3 Turn off all electric power
9. 3 seconds at 140 F 60 C 20 seconds at 130 F 54 C 8 minutes at 120 F 48 C Test the temperature of the water before placing a child in the bath or shower Do not leave a child or an infirm person in the bath unsupervised 1 Press the Priority button on the NOTICE While any hot water is being O temperature controller The provided the temperature setting can green Priority light will glow only be adjusted between 98 F and indicating that this controller is 110 F the au isa and that the Rinnai water heater is heck local for th ready to supply hot water NOTICE Medos Wen ile Blowed when used in nursing homes The priority can only be changed schools day care centers and all while no hot water is running other public applications 2 Press the A or V buttons to NOTICE obtain the desired temperature setting Hot water temp If a newly installed unit with a controller has not been powered for at least 6 hours then the temperature will return to the default setting of 104 F 40 C if power is interrupted All hot water sources are able to provide water at this temperature setting until it is changed again at NOTICE here may be a variation between this or another temperature the temperature displayed on the controller temperature controller and the temperature at the tap due to weather conditions or the length of pipe to the water heater Temperature Op
10. If the length is greater than 15 ft 4 6 m then move dip switch no 1 SW1 to OFF If the length is greater than 9 ft 2 7 m then move dip switch no 1 SW1 to OFF Move dip switch no 1 SW1 to OFF OQ tn BW NBO If you have a longer vent length dip switch no 1 is required to be in the OFF position This ensures the water heater will run properly Blocked flue error codes and shutdowns may result if dip switch no 1 is not in the correct position On the R94LSi the maximum water flow capacity will be reduced by about 10 when dip switch no 1 is OFF VA Series Indoor LS Manual 27 Vent Products Listed and Tested Vent Products for AR50LSI REU VA2019FFUD stis REU VA2528FFUD A R94LSi REU VA2535FFUD Manufacturer Product Pas o Rinnai Ubbink Rolux Vent System Heat Fab Saf T Vent SC system Refer to the manufacturer s technical literature for Metal Fab Vent Air specific part numbers and instructions Intake System Listed and Tested Vent Products for X R98LSI REU VA3237FFU R98LSI ASME REU VA3237FFU ASME Adjustable Horizontal Concentric Termination ProTech l rspvPTBO4LH FSDVWMTP4LH FasNSeal FSAAU4 FSRC4 FSBS4 FSDVWTA FSEDVWMTP4LH Metal Fab Corr Guard 4cGoA 4CGSWC 4CGSWMCM When ordering from Rinnai ask for these part number
11. Ensure igniter is operational Check igniter wiring harness for damage Check gas solenoid valves for open or short circuits Remove burner cover and ensure all burners are properly seated Remove burner plate and inspect burner surface for condensation or debris Flame Failure Check that the gas is turned on at the water heater and gas meter Check for obstructions in the flue outlet Ensure gas line meter and or regulator is sized properly Ensure gas type and pressure is correct Bleed all air from gas lines Ensure proper Rinnai venting material was installed Ensure condensation collar was installed properly Ensure vent length is within limits Verify dip switches are set properly Ensure appliance is properly grounded Disconnect keypad Disconnect EZConnect or MSA controls to isolate the problem Check power supply for loose connections Check power supply for proper voltage and voltage drops Ensure flame rod wire is connected Check flame rod for carbon build up Disconnect and reconnect all wiring harnesses on unit and PC board Check for DC shorts at components Check gas solenoid valves for open or short circuits Remove burner plate and inspect burner surface for condensation or debris VA Series Indoor LS Manual 13 EM 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 cycli
12. s discretion If a component or product returned to Rinnai is found to be free of defects in material or workmanship or damaged by improper installation or damaged during return shipping the warranty claim for product parts and labor may be denied How get service You must contact a state qualified licensed contractor or authorized service provider for the repair of a product under this Warranty For the name of a qualified authorized service provider please contact your place of purchase visit the Rinnai website www foreverhotwater com call Rinnai at 1 800 621 9419 or write to Rinnai at 103 International Drive Peachtree City Georgia 30269 Proof of purchase is required to obtain warranty service You may show proof of purchase with a dated sales receipt or by registering within 30 days of purchasing the product To register your tankless water heater please visit www rinnairegistration com For those without internet access please call 1 866 RINNAI1 746 6241 Receipt of Registration by Rinnai will constitute proof of purchase for this product However Registration is not necessary in order to validate this Warranty What is not covered This Warranty does not cover any failures or operating difficulties due to the following accident abuse or misuse alteration misapplication force majeure improper installation such as but not limited to inadequate water quality condensate damage improper venting incorrect g
13. controller Mount the controller to the wall using the holes drilled in step 2 Disconnect the power from the Rinnai water heater Remove the cover of the Rinnai water heater Remove the plastic cover from the PCB and electrical connections Thread the cable through the access hole at the base of the unit and connect the wires to the controller terminals on the right hand side bottom of the PCB secure the controller cable using the clamp provided Replace plastic cover over PCB and then replace the cover of the Rinnai water heater WARNING Do not attempt to connect the temperature controllers with the power on There is 120 volt potential next to the temperature controller connections inside the unit Do not connect the temperature controller to the 120VAC terminals provided for the optional solenoid drain valves All service and wiring should be performed by a registered installer Outline of Remote securing scre 1 21 32 wiring hole 3 5 16 securing screw REMOTE CONTROL CONNECTION TERMINALS REMOTE CONTROL CABLE eal Z Wea 7 oA OSMA A Ln c SA CABLE CLAMP VA Series Indoor LS Manual Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING BER A WARNING X you do not follow these instructions exactly a fire or explosion
14. 4 L min Bs a 35 5 L min 2 3 37 L min Hot water capacity 45 F rise ELA ay oM 18 9 L min 25 4 L min 27 0 L min 32 2 L min Default Temperature Default Temperature Setting no controller _ no controller 120 F 49 C Temperature Controller Default Setting 104 F 40 C Maximum Temp Setting commercial 160 F 71 C 185 F 85 C Maximum Temp Setting residential 140 60 see Temperature Ranges for more information 49 dB Noma 5 1 TW 9W C SUR Standby Cw Minimum Gas Supply 9 0 inch W C Maximum Gas EIL n Natural Gas 10 5 inch W C Pressure Propane si 13 5 inch W C Type of Appliance Direct Vent Temperature controlled continuous flow gas hot water system With or without remote controls mounted in kitchen bathroom etc Approved Gas Type Natural Gas or Propane Ensure unit matches gas type supplied at the installation location Gas Supply 3 4 MNPT Cold Water Inlet 3 4 MNPT Hot Water Outlet 3 4 MNPT Ignition System Direct Electronic Ignition Electric Connections Appliance AC 120 Volts 60Hz Remote Control DC 12 Volts Digital Water Temperature Control Simulation Feedforward and Feedback Water Supply Pressure Minimum Water Pressure 20 PSI Recommended 30 80 PSI for maximum performance Maximum Water Supply Pressure 150 PSI Remote Control Cable Non Polarized Two Core Cable Minimum 22 AWG Minimum flow may var
15. American National Standard ANSI Z21 10 3 Canadian Standard CSA 4 3 for all water heating systems e The relief valve must comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems ANSI 221 22 and or the standard Temperature Pressure Temperature and Pressure Relief Valves and Vacuum Relief Valves CAN1 4 4 e The relief valve must be rated up to 150 psi and to at least the maximum BTU hr of the appliance e The discharge from the pressure relief valve should be piped to the ground or into a drain system to prevent exposure or possible burn hazards to humans or other plant or animal life Follow local codes Water discharged from the relief valve could cause severe burns instantly scalds or death e The pressure relief valve must be manually operated once a year to check for correct operation Freeze Protection The freeze protection features include electrical heating elements and intermittent firing of the burner Freeze protection may be disabled if electricity or gas is not supplied or if there is an error preventing the water heater from functioning Loss of freeze protection may result in water damage from a burst heat exchanger or water lines The installation of auto drain down solenoid valves is optional However Rinnai strongly recommends that these valves be installed to prevent damage from freezing in case the normal freeze protection should become disabled Any
16. Tub NOTICE Bath Fill button The button will flash 1 Press the Water Smart Bath Fill WaterSmart button once he button Will illuminate a tone will sound and Bath Fill To Stop the and the voice prompt will announce Bath Fill Hot water is not available Turn off Before it all hot water taps and push the Bath the word Bath will appear next to the temperature setting Fill button Follow the voice prompt Finishes instructions 2 The voice prompt will announce The hot water system is ready Open the hot water tap Open the hot water tap The In Use indicator will illuminate on all controllers The hot water will begin to flow 3 When the preset volume of water has been produced then NOTICE During the bath fill function any hot water flowing at other locations e water flow will cease subtracts from the total amount of water for the bath For example if the dis Sian BARNE When bath fill function is set for 50 gallons button will flash Other Taps and 5 gallons of hot water are used at e atone will sound Are Open other locations during the fill period then the bath will only fill with 45 e the voice prompt will gallons announce Bath fill is complete Turn off the bath hot water tap and push the Bath Fill button 4 Turn off the bath hot water tap and WaterSmart push the Bath Fill button The Bath Fill water heater will not allow hot water to flow from
17. local building codes Confer with local building K Pressure Relief Valve i Solenoid Valve officials before installation 24 VA Series Indoor LS Manual Optional Piping for Circulation Systems NOTE For residential and commercial applications this piping arrangement reduces the warranty to the following 3 years on heat exchanger 3 year on parts Full warranty will be maintained if an on demand recirculation system in incorporated Refer to the Limited Warranty For this application Pump should be controlled by an Aquastat Timer or Combination Aquastat and Timer Pump to be sized to maintain circulation loop temperature A minimum of 3 GPM flow is recommended for the circulation system 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 Note Water heater outlet temperature cannot be adjusted when circulation pump is running Minimum 3 4 Hot Water Supply Line Optional 2 6 Gallon Storage Tank To eliminate cold water sandwich effect caused by frequent On Off operation Building Fixture Outlets KEY a 3 4 Ball Valve V Pressure Regulator 3 4 Union O Circulating Pump PNU Check Valve KX Boiler Drain Valve K Pressure Relief Valve X A Solenoid Valve Rinnai Water Heater Ri
18. merchantability and fitness arising under state law are limited in duration to the period of coverage provided by this limited Warranty unless the period provided by state law is less Some states do not allow limitations on how long an implied Warranty lasts so the above limitation may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state VA Series Indoor LS Manual 43 a Ask about RIAL Rinnai America Corporation e e 9 e Rinnai s other fine products 103 intemational Drive Peachtree City GA 30269 TOLL FREE 1 800 621 9419 FAX 678 829 1666 www rinnai us Tankless Water Heaters Residential and Commercial Applications Continuous Hot Water Up to 9 8 GPM High Energy Efficiency Propane or Natural Gas Internal or External Installation Digital Temperature Control Small Compact Design Direct Vent Furnaces High Efficiency Cool to the touch Cabinet Blower Included Vent Terminal A Included 556 and 1004 Models Available in Beige White and Silver Gas Conversion Kit Included Direct Vent Fireplace RHFE 750ETR 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 e Designed for Use with Rinnai Systems e Domestic Hot Water Priority e Optional Programmable Thermostat e Zero Clearance to Combustibles e Accommodat
19. only be changed on the controller for the primary unit 1 EZConnect Cable or 1 MSA 2M 1 MSA 2M and 1 MSA 2S 1 MSA 2M and 2 MSA 2S 1 MSA 2M and 3 MSA 2S 34 VA Series Indoor LS Manual 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 e controller should be out of reach of small e Avoid locations where the temperature controller children could be splashed with liquids e Avoid locations where the controller may become e Do not install in locations where it can be adjusted hot near the oven or radiant heater by the public e Avoid locations in direct sunlight The digital display may be difficult to read in direct sunlight Configurations A maximum of 4 temperature controllers including wired and wireless can be installed for a water heater or bank of water heaters Controllers can only be Controllers wired in parallel Controllers cannot be wired in sare Rinnai 8 The 4 temperature controllers can consist of multiple MC 91 s or MC 502RC s but only 1 BC 100V and only 1 MC 100V Any one of the 5 types of controllers can be installed by itself and still operate the water heater All functions will be available with the exception that the Wire controllers in parallel clock fun
20. product damage due to freezing will not be covered by the warranty e Toxic chemicals such as those used for boiler water treatment are not to be introduced to the potable water used for space heating e Ifthe appliance will be used as a potable water source it must not be connected to a system that was previously used with a nonpotable water heating appliance e Ensure that the water filter on the Rinnai water heater is clean and installed e The relief valve should be added to the hot water outlet line according to the manufacturer s instructions DO NOT place any other type valve or shut off device between the relief valve and the water heater e Do not plug the relief valve and do not install any reducing fittings or other restrictions in the relief line The relief line should allow for complete drainage of the valve and the line e If arelief valve discharges periodically this may be due to thermal expansion in a closed water supply system Contact the water supplier or local plumbing inspector on how to correct this situation Do not plug the relief valve e Neither Rinnai nor the American National Standard ANSI Z21 10 3 Canadian Standard CSA 4 3 requires a combination temperature and pressure relief valve for this appliance However local codes may require a combination temperature and pressure relief valve In addition the solenoid valves should be connected electrically to a surge protector with terminals T
21. through the water heater for 5 minutes d Close service valve V1 and open shutoff valve V3 11 Disconnect all hoses 12 With V4 closed remove the in line filter at the cold water inlet and clean out any residue Place filter back into unit and open V4 13 Restore electrical power to the water heater H3 Cold Water Line Hot Water Line 5 gallon pail of virgin food H1 grade white vinegar or virgin food grade citric acid H2 Circulating Pump C KEY 3 4 Ball Valve Pressure Regulator 3 4 Union O Circulating Pump T Check Valve FR Boiler Drain Valve K Pressure Relief Valve i Solenoid Valve 16 VA Series Indoor LS Manual Installation Instructions Only properly trained and qualified installers should install this appliance The warranty may be voided due to improper installation or installation by a non qualified installer Rinnai highly recommends all installers attend a product knowledge class For information on a Rinnai Training Course or for questions on installation call 1 800 621 9419 General Instructions WARNING Do not use substitute materials Use only parts certified with the appliance e This appliance must be installed by a state qualified or licensed contractor It is the responsibility of the person having the water heater installed to ensure the installing contractor has proper licenses and permits for installing water heaters in your locat
22. to overcome the pressure loss through the tank water heater and supply and return plumbing Reference the Rinnai Hot Water System Design Manual Pump Sizing for Circula tion Pump to be of bronze or stainless construction IMPORTANT Connect the building return line to the hot water supply line as close as possible to the Rinnai Water Heater Rinnai Water Heater Rinnai Equipment List QTY Rinnai 1 Water Heaters RIK KIT Optional 1 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve lt q 3 4 Gas Connection 4 Gas Supply LO i Minimum 3 4 Cold Water Supply Line Tank Water Heater to be Sized for Heat Loss of Circulation Loop Building Supply Electric Water Heater Building Fixtures Expansion Tank AN KEY This is not an engineered drawing Itis intended only as a guide and not as a replacement for professionally engineered project drawings This a 3 4 Ball Val V Pressure Regulator drawing is not intended to describe a complete system It is up to the ae contractor engineer to determine the necessary components and 3 4 Union O Circulating Pump configuration of the particular system being installed This drawing does E not imply compliance with local building code requirements It is the Check Valve Fed Boiler Drain Valve responsibility of the contractor engineer to ensure installation is in accordance with all
23. volume levels in the order order below below Off Volume beep Off Sound no beep eras gt VA Series Indoor LS Manual 9 Medium Volume default Using the Water Smart Bath Fill Function Overview This function is exclusive to the BC 100V temperature controller The bath fill function allows the consumer to fill a tub with a preset volume of water at a preset temperature This is done by pressing the bath fill button on the BC 100V controller while no hot water is flowing and then opening only the hot water tap The water heater will stop the hot water flow when the preset volume has been reached The hot water tap should then be closed and the bath fill button pressed The temperature settings for the bath fill function are limited to those in the table below B Bath Fill Temperature Settings Available F 98 100 102 104 106 108 110 115 1120 Setting the Water Volume The default volume is set to 25 gallons The volume can be set between 10 and 120 gallons 1 Press the Priority button on the temperature controller The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water Priority Press the Temp A or V buttons to obtain the desired temperature setting v J Temp 3 Press the Water Vol A or V buttons to obtain the desired Water Vol water v
24. 3237FFU ASME e Follow the installation instructions and those in Care and Maintenance for adequate combustion and ventilation air e The appliance should be located in an area where water leakage of the unit or connections will not result in damage to the area adjacent to the appliance or to lower floors of the structure When such locations cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the appliance The pan must not restrict combustion air flow e he flow of combustion and ventilation air shall not be obstructed e This appliance is not suitable for use in an application such as a pool or spa heater that uses chemically treated water This appliance is suitable for filling large or whirlpool bath tubs with potable water e f a water heater is installed in a closed water supply system such as one having a backflow preventer in the cold water supply line means shall be provided to control thermal expansion Contact the water supplier or local plumbing inspector on how to control thermal expansion e Should overheating occur or the gas supply fail to shut off turn off the manual gas control valve to the appliance e Keep the air intake location free of chemicals such as chlorine or bleach that produce fumes These fumes can damage components and reduce the life of your appliance VA Series Indoor LS Manual 17 Clearances from Appliance to top to Non Com
25. F Button MC 91 1US MC 502RC 1US S Wireless Dimensions inches 4 33 W x 5 90 H x 1 16 D Priority Indicator Temperature Display enu x d J T Ch Thermostat ON OFF Button In Use Indicator Priority Button Requires the transceiver MC 502RC 1US M to be connected to the water heater Refer to the MC 502RC 1US S manual and the Wireless Controller Installation Instructions for complete details on features operation and installation 6 VA Series Indoor LS Manual Temperature Controllers Models BC 100V 1US Dimensions inches 8 0 W x 4 125 H x 0 875 D NOTICE The BC 100V controller is water resistant Avoid splashing the controller Water Smart Bath Fill Indicator In Use Temperature Indicator ON OFF Button Priority Button and Indicator Water Smart Bath Fill Button Water Volume MC 100V 1US Dimensions inches 5 0 W x 4 75 H x 0 75 D In Use Indicator Temperature Display Clock VA Series Indoor LS Manual 7 Setting the Temperature Hot water can be dangerous especially for infants or children the elderly or infirm There is hot water scald potential if the thermostat is set too high Water temperatures over 125 F 51 C can cause severe burns or scalding resulting in death Hot water can cause first degree burns with exposure for as little as
26. SOR as CIRCUT WATER FLOW CONTROL DEVICE WATER FLOW CONTROL DEVICE CIRCUIT BY PASS FLOW CONTROL DEVICE MAE l GO BY PASS FLOW CMS CONTROL DEVICE CIRCUIT l 59 l LBY PASS SERVO MODEL ONLY OUTGOING WATER ARS HEAT EXCHANGER THERMISTOR THERMISTOR CIRCUIT AIR TEMPERATURE 1 THERMISTOR INDOOR MODEL ONLY VA Series Indoor LS Manual NEUTRAL 3A FUSE W ANTI FROST HEATER e am ep ep um e e emu en en eum em em Omm OD OD D OA a CAX B C MODULATING gon MCDULATING CONTROL CIRCUIT COMBUSTION FAN FLAME ROD REMOTE CONTROLLER REMOTE CONTROLLER CIRCUIT 41 Consumer Support Warranty Information The installer is responsible for your water heater s correct installation Please complete the information below to keep for your records Purchased from Address Phone Date of Purchase Model No Serial No Installed by Installer s License No Address Phone Date of Installation Limited Warrant What is covered This Warranty covers any defects in materials or workmanship when the product is installed and operated according to Rinnai written installation instructions subject to the terms within this Limited Warranty document This Warranty applies only to products that are installed per local and or state codes Improper installation may void this
27. Warranty Rinnai strongly suggests that you use a state qualified or licensed installer who has attended a Rinnai product knowledge class before installing this water heater This Warranty extends to the original purchaser and subsequent owners but only while the product remains at the site of the original installation This Warranty only extends through the first installation of the product and terminates if the product is moved or reinstalled at a new location How long does coverage last VA LS Series Period of Coverage from date of purchase Residential Ao ICAOn Used with Rinnai Air Handler Commercial Applications PP for domestic heating and water including radiant heating HeatExhanger HeatExchanger 12 12 years Syears Syears Note Period of coverage is reduced to 3 years from date of purchase when used as a circulating water heater within a hot water circulation loop where the water heater is in series with a circulation system and all circulating water flows through the water heater and where an on demand recirculation system is not incorporated On demand recirculation is defined as a hot water recirculating loop or system that utilizes existing hot and cold lines or a dedicated return line and only activates when hot water is used It can be activated by a push button motion sensor or voice activation but not by a temperature sensor A timer added to a standard recirculating p
28. above the dashed line in the drawing NOTE ALL pipe and fittings shown below dashed line should be located inside home or building structure The vacuum breaker line should be located inside the building structure KEY V Pressure Regulator O Circulating Pump KX Boiler Drain Valve K Pressure Relief Valve O Solenoid Valve 3 4 Ball Valve 3 4 Union Check Valve Minimum 3 4 Hot Water Supply Line Vacuum Breaker Water Heater Ke A s 3 4 Gas Connection T Gas Supply 3 4 Minimum Minimum 3 4 Normally Closed Cold Water Solenoid Valve Supply Line 1 2 Minimum 7 Normally Open A Solenoid Valve Route to Floor Drain This is not an engineered drawing It is intended only as a guide and not as a replacement for professionally engineered project drawings This drawing is not intended to describe a complete system It is up to the contractor engineer to determine the necessary components and configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building officials before installation 22 VA Series Indoor LS Manual Recommended Pipi
29. any source until the Water Smart Bath Fill button is pushed The button light will go out and the word Bath will disappear from the display Setting Controller to Mute Models MC 91 and MCC 91 To eliminate the beeps when keys are pressed or to turn the beeps back on press and hold both the Aand V buttons until a beep is heard approximately 5 seconds Setting the Clock MC 100V Press the Function button twice within 10 seconds to set the clock Press the A or V button to reach the desired time The clock on the BC 100V automatically shows v the time which has been set on the MC 100V VA Series Indoor LS Manual 11 Maintenance WARNING Turn off the electrical power supply the manual gas valve and the manual water control valve whenever servicing the unit Repairs and maintenance should be performed by a qualified service technician The appliance should be inspected annually by a qualified service technician Verify proper operation after servicing Cleaning It is imperative that control compartments burners and circulating air passageways of the appliance be kept clean Clean as follows 1 Turn off and disconnect electrical power Allow to cool 2 Remove and clean the water inlet filter 3 Remove the front panel by removing 4 screws 4 Use pressurized air to remove dust from the main burner heat exchanger and fan blades Do not use a wet cloth or spray cleaners on the burne
30. as type incorrect gas or water pressure or absence of a drain pan under the appliance e improper maintenance such as but not limited to scale build up freeze damage or vent blockage e incorrect sizing e other causes other than defects in materials or workmanship This Warranty does not apply to any product whose serial number or manufacture date has been defaced This Warranty does not cover any product used in an application that uses chemically treated water such as a pool or spa heater This appliance is suitable for filling large or whirlpool bath tubs with potable water Refer to the Water Quality Section in the Operation and Installation Manual 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 and further Rinnai shall not be liable for indirect incidental special consequential or other similar damages that may arise including lost profits damage to person or property loss of use inconvenience or liability arising from improper installation service or use Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation may not apply to you Any implied warranties of
31. ater The gas supply line shall be gas tight sized and so installed as to provide a supply of gas sufficient to meet the maximum demand of the heater and all other gas consuming appliances at the location without loss of pressure Any compound used on the threaded joint of the gas piping shall be a type which resists the action of liquefied petroleum gas propane LPG Refer to an approved pipe sizing chart if in doubt about the size of the gas line VA Series Indoor LS Manual 19 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 Refer to the National Fuel Gas Code NFPA 54 for proper gas line sizing The below information is provided as an example 1 Determine the cubic feet per hour of gas required by dividing the gas input on the rating plate by the heating value of the gas 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 Use the table for your gas type to find the pipe size required for your cubic feet per hour of gas and your pipe length Example The heating value of propane gas for your location i
32. bustibles to 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 Back of 0 zero 0 zero 0 zero 0 zero Heater Front of 6 inches 24 inches 6 inches 24 inches Heater 152 mm 610 mm 152 mm 610 mm Sides of 2inches 2 inches 1 2 inch 1 2 inch Heater 51mm 51 mm 13 mm 13 mm Floor 12 inches 12inches 12inches 2 inches Ground 305 mm 305 mm 305 mm 51 mm 4 inches 102 mm for enclosed area 1 inch 26 mm for unenclosed area to yes oak to floor ground Every vent connection must be accessible for inspection cleaning and replacement The clearance for servicing is 24 inches in front of the water heater For closet installation R50LSi R75LSi R94LSi clearance is 6 inches 152 mm from the front R98LSi clearance is 24 inches 610 mm from the front Attachment of the Water Heater 1 Identify the installation location and confirm that the installation will meet all required clearances 2 Securely attach the water heater to the wall using any of the holes in the wall installation brackets which are at the top and bottom of the water heater Ensure that the attachment strength is sufficient to support the weight Refer to the weight of the water heater in the Specifications section wall installation brackets 18 VA Series Indoor LS Manual Ele
33. ction on the BC 100V will only be available if an MC 100V is also connected ML If 4 MC 91 s are installed simultaneously press the Priority and On Off buttons on the fourth controller until a beep sounds MC 91 MC 91 MCC 91 MC 502RC The table to the right shows some of the possible MC 91 MCC 91 MC 502RC MC 502RC combinations of controllers MCC 91 MC 502RC BC 100V MC 100V MC 91 MC 502RC BC 100V MC 100V MC 91 MC 91 MC 502RC BC 100V MC 91 MC 502RC MC 502RC MC 100V Cable Lengths and Size The cable for the temperature controller should be a Number of Wired Maximum Cable Length for each non polarized two core cable with a minimum gauge of 22 AWG The maximum cable length from each controller to the water heater depends on the total number of wired controllers connected to the water heater VA Series Indoor LS Manual 35 Temperature Controller Installation Mounting the Controller Follow the procedure below to install MC 91 or MCC 91 temperature controllers 1 10 11 12 36 Determine a suitable location for the controller Make three holes in the wall as shown Run the cable between the controller and the Rinnai water heater or the controller and the other controller Remove the face plate from the temperature controller using a screwdriver Connect the cable to the temperature
34. ctrical Connection The water heater requires a standard 3 prong 120 VAC 60 Hz properly grounded wall outlet Plug the 6ft long power cord into the wall outlet Gas Piping General Instructions e A manual gas control valve must be placed in the gas supply line to the Rinnai water heater A union can be used on the connection above the shut off valve for the future servicing or disconnection of the unit e Check the type of gas and the gas inlet pressure before connecting the Rinnai water heater If the Rinnai water heater is not of the gas type that the building is supplied with DO NOT connect the water heater Contact the dealer for the proper unit to match the gas type e Check the gas supply pressure immediately upstream at a location provided by the gas company Supplied gas pressure must be within the limits shown in the Specifications section e Before placing the appliance in operation all joints including the heater must be checked for gas tightness by means of leak detector solution soap and water or an equivalent nonflammable solution as applicable Since some leak test solutions including soap and water may cause corrosion or stress cracking the piping shall be rinsed with water after testing unless it has been determined that the leak test solution is non corrosive Always use approved connectors to connect the unit to the gas line Always purge the gas line of any debris before connection to the water he
35. d the drain pipe must be capped to prevent exhaust gases and condensate from entering the building The cap is supplied on the appliance Provisions must be made to prevent the condensate from entering the water heater Without proper drainage or disposal condensate will damage the heat exchanger e Rinnai LSi tankless water heaters have an integrated condensate collector e Rinnai offers a condensate trap e Regions of cold climate will create more condensate in the vent system The condensate collector should be used in cold climates 26 VA Series Indoor LS Manual 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 Refer to the table to find the maximum vent length based on the number of elbows Follow the applicable note Example If you have one elbow then your maximum vent length is 35 feet 10 7 m If your actual length is greater than 15 ft 4 6 m then move dip switch no 1 SW1 to OFF Number of 90 Elbows ERERENEREBEN 41 ft 35 ft 29 ft 23 ft 17 ft 11 ft o ft amp 12 5 m 10 7 m 8 8 m 7 0 m 5 2 m 3 4 m 1 5 m If the length is greater than 21 ft 6 4 m then move swale Na ON dip switch no 1 SW1 to OFF Notes 0095 M E
36. duced to acceptable temperatures in accordance with local codes In the absence of local codes it is recommended that the domestic hot water temperature be set to 140 F 60 C or lower in accordance with UPC 501 6 by using mixing valves or the temperature controller for the water heater Pumps Only use pumps of brass or stainless steel construction Do not use pumps of iron construction as they will oxidize and clog the inlet filter on the appliance Pumps circulating water through the water heater must be sized to overcome the pressure loss through the water heater the heating system and any additional plumbing pressure losses The pressure drop curve based on the water heater model is provided in this manual Replacement When replacing an existing space heating application s water heating source boiler tank water heater tankless water heater etc with Rinnai water heaters ensure that the water heaters are sized to adequately provide the necessary BTU input for the desired space heating application Rinnai water heaters are designed to maintain a constant outlet temperature and will supply only the necessary amount of BTU s to maintain that temperature Depending on the application the maximum BTU rating of the unit may not be achieved Contact Rinnai s Applications Engineering Department for assistance at 800 621 9419 ext 4490 Iron Components Do not use Rinnai water heaters directly for space heating applications involving ir
37. easure resistance of valve coil Combustion Fan Ensure fan will turn freely Failure Check wiring harness to motor for damaged and or loose connections Measure resistance of motor winding Water Flow Control The water flow control valve has failed to close during the bath fill function Immediately Fault turn off the water and discontinue the bath fill function Contact a state qualified or licensed contractor to service the appliance 71 SVO SV1 SV2 and Check wiring harness to all solenoids for damage and or loose connections SV3 Solenoid Valve Measure resistance of each solenoid valve coil Circuit Fault 72 Flame Sensing Device Ensure flame rod is touching flame when unit fires Fault Check all wiring to flame rod for damage Remove flame rod and check for carbon build up clean with sand paper Check inside burner chamber for any foreign material blocking flame at flame rod Measure micro amp output of sensor circuit with flame present Replace flame rod LC Scale Build up in Heat Flush heat exchanger Refer to instructions in manual Exchanger when Replace heat exchanger checking maintenance NOTE The LC code is the only error code that will allow the unit to keep running The code history 00 is display will alternate between the LC code and the temperature setting The controller substituted for LC will continue to beep The LC code will reset if power is turned off and then on No Nothing happens when Clean inl
38. ertificate of Authorization from the National Board The heat exchanger on this unit has the NB and HLW stamps Table of Contents SDECIMICAUONS o od iati ea Due lta Pha anna PES 3 Installation Instructions 17 Consumer Safety Information General Instructions 17 Safety DEMNINONS i iia i e HEU uS 4 Clearances from Appliance 18 Safety Behaviors and Practices 4 Attachment of the Water Heater 18 safety Features eese nenne 4 Electrical Connection 19 Gas Piping Description of Operation 5 General Instructions 19 Pipe Sizing Procedure Example 20 Operating Instructions Water Piping Features Available on Temperature General Instructions 21 5 Pressure Relief Valve 21 Temperature Controllers Models 6 7 Freeze Protection 21 Setting the Temperature 8 Freeze Protection PIPING 22 Temperature Options Without Recommended Piping for Basic Installation 23 a Temperature Controller 8 Recommended Piping for Temperature Ranges
39. es Standard Cased Coils Register your product at www rinnairegistration com or call 1 866 RINNAI1 746 6241 Jun 2008 2008 Rinnai America Corporation
40. et water supply filter code water flow is activated On new installations ensure hot and cold water lines are not reversed Check for bleed over Isolate unit from building by turning off hot water line to building Isolate the circulating system if present Open your pressure relief valve if water is flowing there is bleed over in your plumbing Ensure you have at least the minimum flow rate required to fire unit Ensure turbine spins freely Measure the resistance of the water flow control sensor Check for DC shorts at components 14 VA Series Indoor LS Manual Trouble Shooting for Common Issues don t have any hot water when open the tap Make sure there is gas water and electricity to the Rinnai water heater power is turned on and the gas is turned on When I was using the hot water the water got cold If you adjusted the flow from the tap to lessen it you may have gone below the minimum flow required The Rinnai water heater requires a minimum flow rate to operate See the specification page for the flow rate of your model Decrease the temperature setting at the temperature controller or increase the water flow White smoke comes out of the exhaust During colder weather when the exhaust temperature is much hotter than the outside air the exhaust fumes condense producing water vapor When I open a hot tap do not immediately get hot water Hot water must travel through your plumbing from the R
41. his allows the solenoid valves to operate if the water heater is disabled due to an error code The solenoid valves and surge protector with terminals are available for purchase at Rinnai VA Series Indoor LS Manual 21 Freeze Protection Pipin 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 as 30 F when protected from direct wind exposure In the event of a power failure at temperatures below freezing the water heater should be drained of all water to prevent freezing damage The unit may be drained manually However Rinnai highly recommends that drain down solenoid valves be installed that will automatically drain the unit if power is lost Rinnai also recommends the installation of a surge protector with terminals which allows the solenoid valves to operate if the unit is disabled due to an error code When the electrical power to the water heater fails the 3 4 solenoid valve closes stopping the flow of water into the heater and the 1 2 solenoid valve opens allowing the water heater and associated piping to drain Ensure that you run the drain for the solenoids to the outside environment to prevent discharging water inside the building causing water damage NOTE Heat trace ALL water pipe and fittings located outside home attic crawl space or building structure ALL water pipe and fittings shown
42. innai water heater to the faucet The time period for hot water to reach your fixture is determined by the amount of water in the plumbing system between the water heater and the fixture water pressure and the flow rate of the fixture After I turn off the hot water tap the fan on the Rinnai water heater continues to run The fan is designed to continue running for a short time after the flow of water stops This is to ensure constant water temperatures during rapid starting and stopping as well as exhausting any residual gas flue products from the unit Accessing Operating Information Models MC 91 and MCC 91 To display the most recent error codes press and hold the On Off button for 2 seconds While holding the On Off button press the A button The last 9 error codes will flash one after the other To exit this mode press the On Off and A button as before To display the water flow through the water heater press and hold the A button for 2 seconds and without releasing the A button press the On Off button To display the outlet water temperature press and hold the W button for 2 seconds and without releasing the V button press the On Off button Water Quality Consideration of care for your water heater should include evaluation of water quality If the water quality exceeds the target levels provided in the table you may want to treat or condition the water Source Part 143 National Secondary Drin
43. ion Rinnai highly recommends that installers attend a product knowledge class to ensure customer satisfaction and warranty coverage Failure to comply with state and local codes pertaining to water heater installations may void the warranty e This appliance is not to be installed outdoors e A qualified installer or service technician should install the appliance inspect it and leak test it before use e 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 e The appliance when installed must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 17 e The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psi 3 5 kPa 13 84 in W C e The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psi 3 5 kPa 13 84 in W C OL extis eni eres REU VA2019FFUD R OE REU VA2528FFUD A RIALS REU VA2535FFUD RIGE SI BEENDEN REU VA3237FFU R98LSI ASME REU VA
44. king Water Regulations TDS Total Dissolved Up to 500 mg L Solids VA Series Indoor LS Manual 15 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 1 Disconnect electrical power to the water heater 2 Close the shutoff valves on both the hot water and cold water lines V3 and V4 3 Connect pump outlet hose H1 to the cold water line at service valve V2 4 Connect drain hose H3 to service valve V1 5 Pour approximately 4 gallons of virgin food grade white vinegar or citric acid into pail Rinnai Water Heater 6 Place the drain hose H3 and the hose H2 to the pump inlet into the cleaning solution 7 Open both service valves V1 and V2 on the hot water and cold water lines 8 Operate the pump and allow the cleaning solution to circulate through the water heater for at least 45 minutes 9 Turn off the pump 10 Rinse the cleaning solution from the water heater as follows a Remove the free end of the drain hose H3 from the pail b Close service valve V2 and open shutoff valve V4 Do not open shutoff valve V3 c Allow water to flow
45. ng 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 spots which indicate blockage due to scale build up Refer to instructions in manual for flushing heat exchanger Measure resistance of safety circuit Ensure high fire and low fire manifold pressure is correct Check for improper conversion of product Over Temperature Check for restrictions in air flow around unit and vent terminal Warning Check for low water flow in a circulating system causing short cycling Check for foreign materials in combustion chamber and or exhaust piping Check for clogged heat exchanger Outgoing Water Check sensor wiring for damage Temperature Sensor Measure resistance of sensor Fault Clean sensor of scale build up Replace sensor Heat Exchanger Check sensor wiring for damage Outgoing Temperature Measure resistance of sensor Sensor Fault Clean sensor of scale build up Replace sensor Combustion Air Check for restrictions in air flow around unit and vent terminal Temperature Sensor Check sensor wiring for damage Fault Measure resistance of sensor Clean sensor of scale build up Ensure fan blade is tight on motor shaft and is in good condition Replace sensor Modulating Solenoid Check modulating gas solenoid valve wiring harness for loose or damaged terminals Valve Signal Abnormal M
46. ng for Basic Installation Rinnal Water Heater Rinnai Equipment List QTY Rinnai Water Heaters 1 RIK KIT Optional 1 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve Gas Supply 3 4 Hot Water Supply Line 3 4 Cold Water Supply Line For Building Fixtures KEY This is not an engineered drawing It is intended only as a guide and not as a replacement for professionally engineered project drawings This D 14 Ball Val Pressure Regulator drawing is not intended to describe a complete system It is up to the 3 AVANS contractor engineer to determine the necessary components and 3 4 Union O Circulating Pump configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the Check Valve ped Boiler Drain Valve responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building K Pressure Relief Valve i Solenoid Valve officials before installation VA Series Indoor LS Manual 23 Recommended Piping for Circulation Systems NOTE For residential and commercial applications this piping arrange ment maintains full warranty For this application Pump should be controlled by an Aqua stat Timer or Combination Aquastat and Timer Pump to be sized to maintain circulation loop temperature The pump should be sized
47. nnai Equipment List Rinnai Water Heaters RIK KIT Optional 1 3 4 Fittings Include 2 Unions 2 Ball Valves 2 Drain Valves and 1 Pressure Relief Valve Gas Supply Minimum 3 4 Cold Water Supply Line Expansion Tank This is not an engineered drawing Itis intended only as a guide and not as a replacement for professionally engineered project drawings This drawing is not intended to describe a complete system Itis up to the contractor engineer to determine the necessary components and configuration of the particular system being installed This drawing does not imply compliance with local building code requirements It is the responsibility of the contractor engineer to ensure installation is in accordance with all local building codes Confer with local building officials before installation VA Series Indoor LS Manual 25 Venting Instructions Intake Exhaust Guidelines Refer to the specific instructions on your vent product for additional installation requirements e This water heater is a direct vent water heater and therefore is certified and listed with the vent system You must use vent components that are certified and listed with the water heater model e not combine vent components from different manufacturers e The vent system must vent directly to the outside of the building and use outside air for combustion e Every vent connection must be accessible for inspection cleaning and
48. olume in gallons Multiple Water Heaters Anti scald Fixtures To Prevent Over Filling 10 VA Series Indoor LS Manual The bath fill function will not work properly if it is connected to multiple water heaters The tub will overfill because the bath fill function is not able to measure the water volume when connected to multiple water heaters If power is lost during the bath fill function the water heater will shut down but the water will continue to flow When power returns the water shuts off and Error Code 03 appears on the controller If power is lost after the bath has filled but before the bath fill function button is de selected then the water will not flow during the power loss or after the power is returned Once power returns close the hot water tap and de select the bath fill function No error code appears Do not use with single handle fixtures that have anti scald features built into them These fixtures allow a predetermined amount of cold water which is not taken into account by the bath fill function Be careful not to overfill the bath An average bath volume is 60 gallons When filling the bath using this function for the first time e Monitor and remain by the bath while the water is running e Use a low bath fill volume less than 25 gallons Using the Water Smart Bath Fill Function To stop the water flow during the Bath Fill function press the Water Smart Filling the
49. ombustion gases are exhausted to the The temperature of the outgoing hot water is constantly monitored The Rinnai water heater may adjust the While electricity water and gas supplies are water flow in order to maintain the temperature setting connected the Rinnai water heater produces hot water The water flow may vary from summer to winter due to whenever a hot water tap is open the difference in ground water temperature Ignition is electronic There is no pilot light consuming gas while the water heater is not being used The gas burner lights automatically when the hot water tap is opened and goes out when the tap is closed Operating Instructions Features Available on Temperature Controllers The MC 91 temperature controller is supplied with the appliance Additional functions are available through the use of optional controllers Description Call Sends a short series of beeps to all controllers in the system It is not an intercom Clock eje 12 hour clock Error Codes When a fault is detected an error code flashes at the temperature display on models MC 91 MCC 91 and MC 502 and flashes at the clock display on models MC 100 and BC 100 Function le Used on this model to set the clock or sound volume In Use Indicator Indicates that hot water is being supplied i e a hot water tap is open ON OFF Button Used to turn the water heater or OFF Power Save Allows the
50. on Of 12 Connecting Multiple Water Heaters 34 Temperature Controller Installation Error Codes Boe e pM 35 Error Code 13 14 Configurations 35 Trouble Shooting for Common Issues 15 Cable Lengths and Size 35 Accessing Operating Information 15 Mounting the Controller 36 Water Quality DPI YA EV IUSTI NE Mees IO EP MU e I UE 15 Operating Instructions sssssssssssssn 37 Flushing the Heat 16 Error Code LC or 00 Technical Data Pressure Drop Curve 38 Outlet Flow 38 Space 39 DIROHSIOS siete Ra ute iei 40 Ladder Diagram sees 41 Consumer Support Warranty Information eussssse 42 Limited Warranty 42 43 VA Series Indoor LS Manual Specifications R98LSi Minimum Gas Minimum Gas Consumption Btu h Btu h 15 000 19 000 000 199 000 Natural Maximum Gas Consumption Btu h 150 000 180 000 Gas 237 000 190 000 Propane Hot water capacity Min Max 0 6 5 0 GPM 0 6 7 5 GPM 9 4 GPM 0 6 9 8 GPM pac 2 3 18 9 L min 2 3 28
51. on 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 39 Dimensions R50LSi R75LSi R94LSi R98LSi R98LSi ASME rz A L M X B XI B ie a 9 a E poe C C ak _ D D _ V Vo Q o ea T H i CRT 1 K pum K oe as N Tek G F E TM MEE p R50LSi R75LSi R94LSi DESCRIPTION in mm Width 14 355 6 18 5 470 B Depth 9 6 244 5 9 1 230 5 Height Unit 22 9 582 23 6 600 R98LSi R98LSi ASME in mm 25 2 4 639 8 110 2 4 3 7 2 0 61 94 52 2 4 2 56 2 110 From base to cold connection 2 0 50 2 0 50 From base to hot connection 1 6 41 1 6 41 This is the minimum dimension from the wall The wall bracket is adjustable to allow an additional 1 57 inches 40 mm From base to gas connection 1 6 40 1 6 40 K 40 VA Series Indoor LS Manual Ladder Diagram HOT FROST SENSING 3A FUSE 5 ARRESTER d VARISTOR VARISTOR m WATER FLOW SENSOR o WATER FLOW SEN
52. ppliance is 0 2000 ft 0 610 m with switches No 2 and No 3 in the OFF position A WARNING PONOT adjust the other dip switches unless specifically instructed to do so 0 2000 ft 2001 5200 ft 5201 7700 ft 7701 10200 ft 0 610 m 610 1585 m 1585 2347 m 2347 3109 m Switch No Switch No Switch No Switch No ON ON ON E F Connecting Multiple Water Heaters The EZConnect cable is an optional accessory that Guidelines connects 2 water heaters and allows them to function as one hot water source e Do not install both the EZConnect and the MSA packs because they are not designed to operate The MSA 2M and MSA 2S packs are optional together accessories that connect 2 to 5 water heaters and allow them to function as one hot water source e Water heaters connected with the EZConnect Cable or the MSA 2M and MSA 2S packs cannot be Refer to the instructions that come with the accessory used for the bath fill function for complete installation information e Water heaters should be installed less than 18 inches apart so that the cables will reach between units and to prevent temperature fluctuations cold water sandwich effect when the water is shut off and turned back on e Temperature settings can
53. r Do not use volatile substances such as benzene and thinners They may ignite or fade the paint 5 Use soft dry cloth to wipe cabinet Vent System The vent system should be inspected at least annually for blockages or damage Motors Motors are permanently lubricated and do not need periodic lubrication Keep fan and motor free of dust and dirt by cleaning annually Temperature Controller Use a soft damp cloth to clean the temperature controller Do not use solvents Lime Scale Build up If you receive Error Code LC refer to the procedure Flushing the Heat Exchanger Refer to the section on Water Quality to see if your water needs to be treated or conditioned When checking maintenance code history 00 is substituted for LC Snow Accumulation Keep the area around flue terminal free of snow and ice The appliance will not function properly if the intake air or exhaust is impeded blocked or partially blocked by obstructions Visual Inspection of Flame The burner must flame evenly over the entire surface when operating correctly The flame must burn with a clear blue stable flame See the parts breakdown of the burner for the location of the view ports The flame pattern should be as shown in the figures below SATISFACTORY FRONT VIEW BLUE FLAME FLAME ROD UNSATISFACTORY FRONT VIEW YELLOW FLAME FLAME ROD 12 VA Series Indoor LS Manual The Rinnai water heater has the abilit
54. replacement e Venting should be as direct as possible with a minimum number of pipe fittings e Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer s instructions e Support horizontal vent runs every four feet and all vertical vent runs every six feet or in accordance Condensate Condensate formation can occur in high efficiency direct vent appliances To prevent condensate damage follow these instructions e Vertical terminations must incorporate a condensate drain and trap as close as possible to the appliance e Slope any horizontal venting 1 4 inch per foot 19 mm towards the heater if the condensate collector is used or towards the exhaust terminal if the condensate collector is not used e Dispose of condensate per local codes e The condensate trap must contain a minimum of 3 inches 75 mm of water with local codes e Vent diameter must not be reduced e Donot connect the venting system with an existing vent or chimney e Do not common vent with the vent pipe of any other water heater or appliance e Vent connections must be firmly pressed together so that the gaskets form an air tight seal e R50LSi R75LSi R94LSi The vent piece connected to the water heater must be secured with one self tapping screw e Refer to the instructions of the vent system manufacturer for component assembly instructions WARNING If the condensate collector is not use
55. ries Indoor LS Manual 31 Flue Installation R98LSi R98LSI ASME Air Intake Assembly 1 BS PS The air intake system consists of a field supplied 4 A 7 inch diameter stainless steel Schedule 40 PVC ABS T or CPVC pipe A maximum 6 feet of semi rigid zl 3 fe 3 Al err flexible aluminum ducting can also be used Foil wrapped dryer vent and cell core products are not authorized The air intake has a zero clearance to combustibles Air Intake Connection 1 Drill 2 small holes at the end of the air intake 3 4 ELS pipe y 2 Slide the pipe over the air intake terminal dese Cy em d gee Using a level ensure the pipe is straight up and fe ee a down 4 i 4 With self tapping screws attach the pipe to the air ES z X intake terminal M 9 E S UU 5 Apply a bead of silicone around the pipe and air intake terminal ensuring an air tight connection Exhaust Pipe Assembly Refer to the manufacturer s installation instructions for the specific exhaust vent system Horizontal Terminations The air intake must be located in relation to the exhaust as shown below The air intake must angle 1 4 inch per foot to the termination to prevent entry of rain lt S AY e _ Optional a Intake EXHAUST e an COMBUSTION AIR 7 IS Intake INTAKE gt
56. roller in a residential dwelling will reduce the warranty coverage to that of a commercial warranty application The MCC 91 controller is intended for commercial and hydronic applications only If an MCC 91 controller is used in a residential dwelling for a hydronics application a mixing valve must also be installed to limit the potable hot water temperature to a safe temperature Water temperatures over 125 F 51 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 Suggested temperatures are These temperatures are suggestions only e Kitchen 120 F 49 C A temperature lower than 98 F 37 C can be e Shower 98 110 F 37 43 C obtained at the tap by mixing with cold water e Bath Fill 102 110 39 43 C To change the temperature scale from Celsius to Fahrenheit or vice versa press and hold the On Off button for 5 seconds while the water heater is OFF Setting the Sound Volume Voice Prompt MC 100V Press the Function button to BC 100V Press the Sound Vol button to adjust the voice prompt adjust the voice prompt volume volume The default sound The default sound volume is set v volume is set to Medium Sound Val to Medium Each subsequent Each subsequent press of the press of the button cycles Function A or V button cycles through through the volume levels in the the
57. s 2516 FT The gas input of the R94LSi is 190 000 BTU HR Additional appliances at the location require 75 000 BTU HR Therefore the cubic feet per hour 190 000 75 000 2516 105 3 FT 37 HR If the pipe length is 100 ft then the 3 4 inch pipe size capable of supplying 197 FT HR of propane gas will be adequate Pipe Sizing Table Propane Gas cubic feet per hour Schedule 40 Metallic Pipe Pipe Sizing Table Natural Gas cubic feet per hour Schedule 40 Metallic Pipe Inlet Pressure 11 0 inches W C Pressure Drop 0 5 inches W C opecific Gravity 1 50 BN Size inches 1150 2350 1620 ow rm s ao s Inlet Pressure less than 2 psi 55 inches W C Pressure Drop 0 3 inches W C opecific Gravity 0 60 w s ww 1580 Lom pm pe we Lm ome ws es 1110 20 VA Series Indoor LS Manual Water Piping General Instructions e A manual water control valve must be placed in the water inlet connection to the Rinnai water heater before it is connected to the water line Unions may be used on both the hot and cold water lines for future servicing and disconnection of the unit e The piping including soldering materials and components connected to this appliance must be approved for use in potable water systems e Purge the water line to remove all debris and air Debris will damage the Rinnai water heater Pressure Relief Valve e An approved pressure relief valve is required by the
58. s or kits FSAAU4 ask for FSAAU4SP single pack FSDVPTBO4LH ask for FSDVWMTOALH Kit includes FSRC4 ask for FSVPK4 Variable Pitch Roof Flashing 0 vent pass through FSDVPTBOALH bird screen pes exterior and interior mounting plates appliance Kit includes a Forse stomicolar peer Jack adapter 3 foot flexible aluminum duct with 2 clamps and roof flashing and adjustable vertical length FSBS4 ask for FSBSASP single pack Horizontal Concentric Termination Appliance Vertical Horizontal Adapter Termination Termination Vent Manufacturer Contact Information for Installation Instructions and Parts Lists Rinnai Ubbink Heat Fab Z Flex Telephone 800 621 9419 Telephone 800 772 0739 Telephone 800 654 5600 Fax 678 829 1666 Fax 413 863 4803 Fax 888 889 3539 Web Site www rinnai us E mail custsvc heat fab com E mail sales z flex com Web Site www heatfab com Web Site www novaflex com ProTech Systems Inc Metal Fab Inc Telephone 800 766 3473 Telephone 800 835 2830 518 463 7284 316 943 2351 Fax 518 463 5271 Fax 316 943 2717 E mail support protechinfo com E mail info milfab com Web Site www protechinfo com Web Site www metal fabinc com 28 VA Series Indoor LS Manual Flue Terminal Clearances ANS Z21 10 3 e CSA 4 3 CORNER DETAIL X AIR SUPPLY INLET VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED A Gessessbowegris veranda porch eck orba __12ehes 0em
59. te wall is 24 inches 60 cm for Canada and US VA Series Indoor LS Manual 29 Additional Clearances Vent Terminal Local codes supersede these clearances e Avoid termination locations near a dryer vent e Avoid termination locations near commercial cooking exhaust e For VA3237 air intake position follow the ANS Z21 10 3 e CSA 4 3 requirements on the previous page v Vent terminal represents concentric vent terminal or VA3237 exhaust only vent terminal d 60 1 52 m vertically between Rinnai terminals N x f 0 91 m to ventilated or unventilated soffit V yy 36 or eve vent or to a deck or porch 12 0 30 m to an v OE inside corner 0 61 m to wall or parapet 0 30 m between Fs 24 Rinnai terminals at same level INSIDE TS CORNER 1 52 m between 60 Rinnai terminals at different levels 12 0 30 m between Rinnai terminals at M V V same level 30 VA Series Indoor LS Manual Flue Installation Concentric Venting RbOLSI R75LSi R65LSI Horizontal Termination without using the Condensate Collector WARNI NG The condensate collector must be used ww in horizontal terminations if a vertical rise in the vent system exceeds 5 If the condensate collector is not used the drain pipe must be capped to prevent exhaust gases and condensate from entering the building The cap is supplied on the appliance
60. temperature controller to be in an energy saving mode Priority Button Indicates that this controller is setting the temperature Priority Indicator can be switched to another controller by pressing its Priority Button when no hot water is running Sound Volume Rie EI Used to adjust the voice prompt volume Temperature Display bd bu bd Shows the temperature setting Thermostat Thermostat Increases or decreases the temperature setting Increases or decreases the temperature Increases or decreases the temperature setting Water Smart Bath Fill Used to select the Water Smart Bath Fill Function to fill a bath Button Indicator with a predetermined volume of water Water Volume di Used to select the water volume for the Water Smart Bath Fill Function VA Series Indoor LS Manual Temperature Controllers Models MC 91 1US amp 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 When the MCC 91 controller is connected these higher temperatures are available on all controller models in the system Refer to the section on temperature ranges In Use Indicator Priority Indicator Temperature Display Priority Button Thermostat ON OF
61. tions Without a Temperature Controller The default temperature setting for this appliance 120 F 49 140 F 60 C installed without a temperature controller is 120 F 49 C If desired the temperature setting can be o Switch No changed to 140 F 60 C by adjustment of a dip ON ON switch Set dip switch 5 to ON to obtain 140 F water temperature setting Set dip switch 5 to OFF default to obtain 120 F 1 O HO RW N water temperature setting m 5 m 5 A WARNING PONOT adjust the other dip switches unless specifically instructed to do so sa 8 VA Series Indoor LS Manual Temperature Ranges 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 a for a given model are provided below Temperature Settings Available F e 150 160 R94LSi R98LSi 100 102 104 106 108 110 115 120 125 130 135 140 7 19 195 R98LSi ASME MCC 91 Temperature Controller These settings require the MCC 91 controller When the MCC 91 controller is connected these higher temperatures are available on all controller models in the system Use of an MCC 91 cont
62. to the appliance using above If you don t smell gas go to the next step WE ONORE Dutton 7 Turn the manual gas valve counterclockwise to the 4 This appliance is equipped with an ignition device full ON position a which automatically lights the burner Do not try to light the burner by hand 2 Set the thermostat to lowest setting 8 Turn on all electric power to the appliance using the ON OFF button 5 Locate the manual gas valve on the side of the 9 Setthe thermostat to desired setting heater Turn the manual valve clockwise to the full OFF position o 10 Open a hot water tap If the appliance will not operate follow the instructions To Turn Off Gas Manual Valve To Appliance and call your service technician or gas supplier See manual for additional p CLOSE OPEN information zv EN rorunNorFGAsTOAPPLIAWcE BEER 1 Turn off all electric power to the appliance using 3 Locate the manual gas valve on the side of the the ON OFF button heater Turn the manual valve clockwise to the full 2 Setthe thermostat to lowest setting Eu oN VA Series Indoor LS Manual 37 Technical Data Pressure Drop Curve 45
63. ump is not considered as on demand There is no warranty coverage on product installed in a closed loop application commonly associated with space heating only applications Use of an MCC 91 controller in a residential dwelling will reduce the warranty coverage to that of a commercial warranty application 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 T Note Period of coverage is reduced to 3 years from date of purchase if the Rinnai water heater temperature setting exceeds 160 F 71 C 42 VA Series Indoor LS Manual Limited Warranty Continued What will Rinnai do Rinnai will repair or replace the covered product or any part or component that is defective in materials or workmanship as set forth Rinnai will pay reasonable labor charges associated with the repair or replacement of any such part or component All repair parts must be genuine Rinnai parts All repairs or replacements must be performed by an individual or servicing company that is properly trained state qualified or licensed to do the type of repair 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
64. y 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 The maximum inlet gas pressure must not exceed the value specified by the manufacturer The minimum value listed is for the purpose of input adjustment VA Series Indoor LS Manual 3 Consumer Safety Information Safety Definitions This is the safety alert symbol This symbol alerts you to potential hazards that can kill hurt and others A DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury A WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury A CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It may also be used to alert against unsafe practices Safety Behavior and Practices WARNING e Keep the area around the appliance clear and free e This appliance is equipped with a three prong plug from combustible materials gasoline and other for your protection against shock hazard and should flammable vapors and liquids be plugged directly into a properly grounded three prong receptacle Do not cut or remove the ground prong from this plug
65. y 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 Please identify the code displayed when inquiring about service G Some of the checks below may need to be done by a qualified service technician Calla service technician for any remedy that involves gas or electricity Call a service technician if you have any doubt or reservation about performing the remedy yourself No burner operation during Service Call freeze protection mode Power interruption during Turn off all hot water taps Press ON OFF twice Bath Fill Water will not flow when power returns Air Supply or Exhaust Ensure Rinnai approved venting materials are being used Blockage Check that nothing is blocking the flue inlet or exhaust Check all vent components for proper connections Ensure vent length is within limits Ensure condensation collar was installed correctly Verify dip switches are set properly Check fan for blockage No Ignition Check that the gas is turned on at the water heater gas meter or cylinder Ensure gas type and pressure is correct Ensure gas line meter and or regulator is sized properly Bleed all air from gas lines Verify dip switches are set properly Ensure appliance is properly grounded Disconnect EZConnect or MSA controls to isolate the problem

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