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22

Rinnai America

FF Models

TROUBLE SHOOTING AND COMMON QUESTIONS

Q

-

I don't have any hot water when I open the tap!

A

- Make sure there is gas, water and electricity to the Rinnai Water Heater

(the power is turned on and the gas is turned on)

Q

-

When I was using the hot water, the water got cold!

A

- If you adjusted the ﬂ ow from the tap to lessen it, you may have gone below

the  minimum  ﬂ ow  required. The  Rinnai  Water  Heater  requires  a  minimum
ﬂ ow  rate  to  operate  (see  speciﬁ cation  page  for  ﬂ ow  rate  of  your  unit).  If
you  mix  the  water  with  a  tap  and  attempt  to  get  a  temperature  well  below
the  temperature  being  controlled  by  the  unit,  it  may  drop  the  ﬂ ow  below  the
desired  minimum  ﬂ ow  rate.  Decrease  the  temperature  supplied  by  the  Rinnai
Water  Heater  at  the  remote  control  or  increase  your  total  ﬂ ow.

Q

-

White smoke comes out of the exhaust!

A

- During colder weather when the exhaust temperature is hotter than the air,

the exhaust fumes condense producing white steam.

Q

-

When I open a hot tap. I do not immediately get hot water!

A

- Hot water must travel through your plumbing from the Rinnai Water Heater to

the  faucet. The  time  period  for  hot  water  to  reach  your  ﬁ xture  is  determined
by  the  amount  of  water  in  your  plumbing  system  between  your  water  heater
and  the  ﬁ xture,  water  pressure,  ﬂ ow  rate  of  ﬁ xture  in  use,  etc.

Q

-

After I turn off the hot water tap, the fan on the Rinnai Water Heaters

continues to run!

A

- The fan is designed to be on for 65 seconds after the ﬂ ow of water stops.

This is to ensure constant water temperatures during rapid starting and
stopping, as well as exhausting any residual gas ﬂ ue products from the unit.

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Содержание C53

Страница 1: ...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 WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death Residential and Commerc...

Страница 2: ...PT Model Minimum Gas Consumption Btu h Maximum Gas Consumption Btu h With or without remote controls mounted in kitchen bathroom ect Connections By Pass Control Minimum Gas Supply Pressure Maximum Gas Supply Pressure Type of Appliance Operation Exhaust System Approved Gas Type Electrical Consumption Hot water capacity 50 F rise Hot water capacity 35 F rise Factory TemperatureSetting Maximum Temper...

Страница 3: ...in a hot water circulation loop when the water heater is in series with a circulation system and all circulating water ﬂows through the water heater WHAT WILL RINNAI DO Rinnai will repair or replace the product or any part or component that is defective in materials or workmanship except as set forth below Rinnai will pay reasonable labor and shipping costs to repair the product All repairs must b...

Страница 4: ...an 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 when used as a pool or spa heater This Warranty does not apply if the water supply to the water heater does not meet the National Secondary Drinking Water Regulations as set forth in the U S Code of Federal Regulations ...

Страница 5: ...ter 10 Scalds First Aid 10 General Controller Information 11 Remote Controller Operation 12 Deluxe Controller 13 14 15 16 17 Controllers Set Pattern Temperature Tables 18 Error Messages 19 Maintenance Service Information 20 21 Trouble Shooting and Common Questions 22 For Your Safety Read Before Operating 23 Operating Instructions 23 24 Care Lime Condition Warning 24 Installer s Instructions 25 47 ...

Страница 6: ...aters to help insure maximum customer satisfaction and maximum warranty coverage Failure to comply with state and local codes may result in non compliance and may void the warranty of the water heater s This appliance must be installed in accordance with local codes or in the ab sence of local codes the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or the CSA B149 1 Natural Gas and Propane Instal...

Страница 7: ...g hot water temperature falls below the selected temperature Built into the microprocessor of the Rinnai Water Heater is the ability to LIMIT THE MAXIMUM TEMPERATURE of the hot water supplied by the Rinnai Water Heaters Without the connection of a remote controller s the Rinnai Water Heater is preset to deliver water at 104O F Residential and 140O F Commercial Residential Unit With the remote cont...

Страница 8: ...tion between the temperatures displayed at the remote controller s and the temperature of the water at the tap The Rinnai Water Heater controls the water temperature automatically To do this it sometimes needs to change the water ﬂow accordingly The water ﬂow from the hot water tap may vary after the selected temperature at the remote controller s is altered The water ﬂow may also vary from summer...

Страница 9: ...ure of the Rinnai Water Heater can only be adjusted by the user using the remote controller s To adjust the setpoint temperature of the Rinnai Water Heater all hot water taps must be closed and all circulating pumps turned off where applicable The temperature displayed on this remote controller will also be displayed on all other remote controller s 3 Simply press the or button until the required ...

Страница 10: ...est the temperature of the water with your elbow before placing a child in the bath or shower Do not leave a child or an inﬁrm person in the bath unsupervised S c a l d s F i r s t A i d 1 Remove clothing Remove all wet clothing quickly Wet clothing retains the heat 2 Apply cold water for 30 minutes Immediately submerge the burnt area in cold water for 30 minutes to reduce the heat in the skin pre...

Страница 11: ...ON The controller s for the Rinnai Water Heater allow the customer to control the functions of the water heater and to diagnose certain fault conditions REMOTE CONTROLLERS IDENTIFICATION MC 91 1US comes with the unit MC 100V 1US optional BC 100V 1US optional ...

Страница 12: ...es ﬂash in the event of a failure Thermostat Increases or decreases the desired water temperature In Use Indicator Indicates that a hot water tap is open and that control of the temperature has been taken at another controller ON OFF Used to switch the water heater on and off Priority Pressing takes control of the water temperature by this controller only when all taps are off Priority Indicator I...

Страница 13: ...rands or in emergency situations In Use Indicator Indicates that a hot water tap is open and that control of the temperature is taken at another controller Priority Pressing takes control of the water temperature by this controller only when all taps are off Call Allows user to contact another controller Can be used as a communication channel for errands or in emergency situations Clock 12 Hour AM...

Страница 14: ...ture is displayed on the Digital Monitor To Operate the hot water unit open any hot water tap This will automatically light the burner providing hot water The red ﬂame of the water heater In Use Indicator will illuminate on the Controller Once the hot water is running if the set temperature is either too hot or cold press the or buttons until the desired temperature is reached Setting The Sound Vo...

Страница 15: ...ume is medium each subsequent press of the Sound Vol will cycle through the available volume settings in the following order High Voice Off Voice beep Off Sound no beep Low Voice Medium Voice Press the Sound Vol again to complete setting of the sound volume and return to normal operation Adjusting Temperature Simply press the Hot water temp or buttons until the required temperature is displayed on...

Страница 16: ...bath ﬁll volume is set to 25 gallons The shower bath volume can be lowered to a minimum of 10 gallons or raised to a maximum of 120 gallons Programming shower Bath Volume and Temperature With the system on select a Deluxe Bathroom controller s and ensure that it currently has priority If it does not have priority press the Priority button once and the Priority button will To select the desired del...

Страница 17: ... say Hot water is not available Turn off all hot water taps and push the Bath Fill button Follow the voice prompt instructions When Water Smart Bath Fill Operations Finishes Once the Water Smart Bath fill operation finishes the following events will occur 1 The flow from the shower bath hot water tap will cease 2 The Water Smart Bath Fill button will flash 3 The Kitchen Controller Bath indicator w...

Страница 18: ...ROLLERS SET PATTERN TEMPERATURE TABLES Temperature controllers allows precise temperature control by the user When used correctly the hot water unit will deliver the selected temperature even when the water ﬂow is varied or more than one tap is in use Each Temperature Controller can be individually programmed however the water heater unit can only deliver one set temperature at any time The availa...

Страница 19: ...t the gas is turned on at the water heater and gas meter Check for obstructions in flue outlet Service Call Service Call Service Call Service Call Service Call Service Call Service Call Service Call Service Call Service Call Service Call 03 10 11 12 14 16 32 33 34 52 61 65 71 72 LC 00 Power interruption during Bath ﬁll Water will not ﬂow on power reinstatement Air Supply or Exhaust Blockage No Ign...

Страница 20: ...or presence of foreign debris insects or bugs These items are not covered by the unit s warranty 3 Remove and clean the inlet water ﬁlter 4 Keep the appliance area clear and free from combustible materials gasoline and other ﬂammable vapors and liquids 5 Do not obstruct ﬂow of combustion and ventilation air In the case of any fault or error message from the Rinnai Water Heater ﬁrst turn all hot wa...

Страница 21: ...ng screws See parts breakdown on panels 3 Use pressurized air to remove dust from around main burner 4 Use soft dry cloth to wipe cabinet DO NOT DAMAGE OR DISTORT ANY PARTS OF HEATER DO NOT USE WET CLOTH OR SPRAY CLEANERS ON BURNER 2 Visual check of main burner ﬂames The burner must ﬂame evenly over the entire surface when operating correctly The ﬂame must burn with a clear blue stable ﬂame See th...

Страница 22: ...upplied by the Rinnai Water Heater at the remote control or increase your total ﬂow Q White smoke comes out of the exhaust A During colder weather when the exhaust temperature is hotter than the air the exhaust fumes condense producing white steam Q When I open a hot tap I do not immediately get hot water A Hot water must travel through your plumbing from the Rinnai Water Heater to the faucet The ...

Страница 23: ...ote control keypad Never use tools If the remote keypad doesn t work do not try to repair it call a qualiﬁed service technician Force or attempted repair may result in a ﬁre or explosion D 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 any part of the control system and any gas control which has been...

Страница 24: ...rmed 3 Turn the manual valve at gas inlet of appliance clockwise to OFF Care of Unit s Exterior Keep the exterior cabinet clean Use a soft cloth and warm water when cleaning the cabinet Do Not use volatile substances such as benzene and thinners as they may ignite or cause fading of the paint Lime Condition Warning Signal If you notice LC ﬂashing on the remote key pad this means the unit is beginn...

Страница 25: ...nai Training Courses call 1 800 621 9419 www rinnai us 800 621 9419 Warnings 26 27 Locating the Vent Terminal 28 29 Performance Data 30 Dimensions 31 Recommended Piping for Installation 32 33 34 35 Venting 36 37 Freeze Protection 38 Gas Piping Sizing Chart 39 Gas Piping Notes 40 Water Piping Notes 41 Pressure Relief Valve 41 Electrical Connection Notes 42 Lighting the Unit 43 Remote Controllers 44...

Страница 26: ...s shall be taped to help prevent leakage around joints Aluminum tape is recommended 5 Maintain proper space around the unit for proper servicing and operation Minimum clearances from combustible materials are listed below Top of Heater 6 inches Back of Heater 0 inch Front of Heater 6 inches Sides of Heater 2 inches Floor 12 inches Vent Air Intake 0 inches 6 Installer must install a Pressure relief...

Страница 27: ...alled indoors using the proper vent piping to exhaust by products of combustion to the outside environment Contact your dealer or Rinnai for proper vent kits DO NOT operate this unit without vent piping connected Exhaust gasses must be expelled outside the home All pipe joints shall be taped to help prevent leakage around joints Aluminum tape is recommended 5 Maintain proper space around the unit ...

Страница 28: ...s for the snow level in your area 28 Rinnai America FF Models INSTALLER S INSTALLATION INSTRUCTIONS Locating the vent terminal Terminals should be so positioned as to avoid products of combustion entering openings into buildings or other flues or vents R E C O M M E N D E D V E N T A I R I N TA K E T E R M I N A L P O S I T I O N ...

Страница 29: ...3 J e h t r o g n i d l i u b o t t e l n i y l p p u s r i a l a c i n a h c e m n o n o t e c n a r a e l C n a o t t e l n i r i a n o i t s u b m o c y a r e h t o p p e c n a i l t o o f 1 t o o f 1 t e e f 6 t e e f 3 g n i d l i u b a o t n i t e l n i r i a d e c r o f a o t e c n a r a e l C K L c i l b u p n o d e t a c o l y a w e v i r d d e v a p r o k l a w e d i s d e v a p e v o b ...

Страница 30: ...3 0 0 4 0 0 5 0 0 6 Pressure Loss ft head V2532FFU C V2520FFU C 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 5 1 5 2 1 0 0 1 5 7 0 5 5 2 0 Hot Water Flow Rate gpm V2520FFU C V2532FFU C 30 Rinnai America FF Models INSTALLER S INSTALLATION INSTRUCTIONS PRESSURE DROP CURVE INSTALLER S INSTALLATION INSTRUCTIONS OUTLET FLOW DATA ...

Страница 31: ...r Outlet from center G Cold Water Outlet from wall H Cold Water Outlet from center I Gas Connection from wall J Gas Connection from center Gas Length to Connection from base Cold Length to Connection from base Hot Length to Connection from base Gas Fitting Diameter Cold Fitting Diameter Hot Fitting Diameter 13 8 9 2 10 8 23 6 24 7 3 6 5 1 4 3 2 8 4 3 1 3 9 5 5 3 5 1 6 2 1 6 3 4 NPT 3 4 NPT 3 4 NPT...

Страница 32: ...s 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 for and configuration of the particular system being installed The drawing does not imply compliance with local building code requiremen...

Страница 33: ...tures Building Return Not required to be 3 4 Line Building Supply Expansion Tank Gas Supply QTY 1 1 1 Rinnai Water Heater Pump Should be Controlled by an Aquastat Timer or Combination Aquastat and Timer Pump to be sized for Pressure Drop through Building Supply and Return Piping Pump to be of Bronze or Stainless Construction Notes PLEASE NOTE FOR RESIDENTIAL APPLICATIONS THIS PIPING ARRANGEMENT MA...

Страница 34: ...ntrolled by an Aquastat Timer or Combination Aquastat and Timer Pump to be sized for 3 0 gpm flow 12 feet head Flow Balancing Valve to be adjusted to 3 GPM flow through water heater with no hot water taps open Pump to be of Bronze or Stainless Construction Cold Water Supply and Circulation Return Lines Must Be 3 4 Tubing Throughout Circulation Loop Note Water heater outlet temperature cannot be ad...

Страница 35: ... Water Heaters 2 Close valves V3 and V4 3 Connect pump outlet hose H1 to service valve V2 4 Connect drain hose H3 to valve V1 5 Pour approximately 4 gallons of virgin food grade white vinegar or virgin food grade citric acid into pail 6 Place free ends of hose H2 and H3 into pail 7 Open valves V1 and V2 8 Turn on power to circulating pump and allow solution to circulate through water heater for 45...

Страница 36: ...ich position this switch should be placed in When the Equivalent Length of vent pipe D is more than 22 feet leave dip switch number 1 in the OFF position When the Equivalent Length of vent pipe D is 22 feet or less dip switch number 1 must be moved to the ON position Dip switch 1 is located in the top row of dip switches 1 through 8 on the PC board See the diagram below to identify the proper swit...

Страница 37: ...tallation The Rinnai Tankless water heater may also be installed on an internal wall which is near to an external wall This can be done using a combination of extension tube s 90 or 45 elbow s The maximum HORIZONTAL EQUIVALENT LENGTH of the vent air intake system is 41 feet as calculated using the formula on previous page i e an installation with 23 feet of extension tubes and three 90 elbows An a...

Страница 38: ... protection of the water heater is only possible when electricity gas supply and normal water heater functions are enabled If you expect freezing conditions while either electricity or gas supply is interrupted water must be completely drained from water heater This water heater and venting system is designed to withstand temperatures to as low as 30O F so long as electricity and gas are supplied ...

Страница 39: ...e size that will supply the cubic feet per hour of gas required for the input rating of the Rinnai Water Heaters The formula for ﬁguring the cubic feet per hour required is Gas Input of Rinnai water heater BTU HR CFH Heating Value of Gas BTU FT3 Gas input requirement is on the water heater data plate The heating value of the gas can be obtained from the local Natural Gas Utility Capacity Table for...

Страница 40: ...hecked for gas tightness by means of leak detector solution soap and water or an equivalent nonﬂammable solution as applicable Caution Since some leak test solutions including soap and water may cause corrosion or stress cracking the piping must be rinsed with water after testing unless it has been determined that the leak solution is non corrosive 5 The Rinnai Water Heater must be leak tested bef...

Страница 41: ... relief valve must comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems ANSI Z21 22 and or the standard CAN1 4 4 Temperature Pressure Temperature and Pressure Relief Valves and Vacuum Relief Valves This relief valve must be rated up to 150 PSI of pressure 3 The relief valve should be added to the hot water outlet line per manufacturer s instruct...

Страница 42: ...ater piping to ground the metal parts of the water heater CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing 1 The Rinnai Water Heater requires 120VAC 60 HZ Power from a properly grounded circuit 2 An on off switch must be provided and installed for the incoming 120VAC power 3 Wire ...

Страница 43: ...s may settle there 3 Turn the manual gas control valve on STOP READ THE SAFETY ISSUES ON PAGES 8 4 Turn on any hot water tap The Rinnai Water Heater should light and begin heating your water If the Rinnai Water Heater fails to light 1 DO NOT ATTEMPT TO LIGHT BY HAND 2 Turn off the electrical power to the unit 3 Turn off the manual gas control 4 Wait 5 minutes if you smell gas go to a neighbor s ho...

Страница 44: ...ne the most convenient location s When deciding on the best location for the remote controllers please consider the following items 1 Place the controllers out of reach of small children 2 Avoid locations where remote controller s will become hot over the stove near the oven or a radiant heater 3 Avoid direct sunlight The digital monitor can be difﬁcult to read in direct sunlight 4 Avoid areas whe...

Страница 45: ...uld be removed from the top or bottom of the controller to allow ﬂush mounting with the wall 7 Disconnect the power from the Rinnai Water Heater 8 Remove the cover of the Rinnai Water Heater 9 Remove the plastic cover from the PCB and electrical connections DO NOT ATTEMPT TO CONNECT THE REMOTE CONTROLLERS WITH THE POWER ON THERE S 120 VOLT POTENTIAL NEXT TO THE REMOTE CONTROLLER CONNECTIONS INSIDE...

Страница 46: ... attach pressure gauge to test point 4 Turn Power on 5 Open any hot water tap fully 6 Check test point or supply pressure in water columns per inch NOTE The pressure may be low due to too little ﬂow too high an incoming temperature and or undersized gas piping Examine these areas before determining that the pressure needs to be adjusted Contact Rinnai before adjusting manifold pressures at 1 800 6...

Страница 47: ...47 Rinnai America FF Models INSTALLER S INSTALLATION INSTRUCTIONS Schematic Diagram 2532FFU R85 2532FFUC C85 2520FFU R53 Fixed By Pass 2520FFUC C53 No By Pass ...

Страница 48: ...060 00012 30775 7 U245 2602 01 Printed in Japan_05 05 ...

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