Rinnai REU-VR1620WB Service Manual Download Page 36 | Manualshive

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REU-VR1620WG / REU-VR1620WB / REU-VR1620WS / REU-VR2024WG

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Issue 2 - 19/01/11 ©Rinnai

4) Removal of

Sparker

a. Remove 2 pin connector from Sparker
b. Remove high tension cord
c. Remove Sparker fixing screw

5) Removal of the Manifold and Burner unit

a. Remove high tension cord and flame rod.
b. Remove 2 pin connection of the solenoid valve
c. Remove (9) nine screws on the manifold
d. Remove manifold.

e. Remove combustion chamber front panel.

f.

Remove (2) two fixing screws and pull off burner unit.

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Summary of Contents for REU-VR1620WB

Page 1: ...SERVICE MANUAL To Suit Models REU VR1620WG REU VR1620WB REU VR1620WS Does NOT Suit any other Models REU VR2024WG...

Page 2: ...AI Global Rinnai New Zealand has been certified to ISO 9001 Quality Assurance by Telarc All Rinnai products are Certified to WaterMark by SAI Global WaterMark certification is awarded to products and...

Page 3: ...ions and change specifications without notice Failure to comply with these instructions may result in serious personal injury or damage to the appliance This manual has been published by Rinnai Austra...

Page 4: ...ormation Hz Hertz IC integrated circuit kPa kilopascals LED light emitting diode L min Litres per minute mA milliamps MJ h megajoule per hour mm millimetres OHS overheat switch PCB printed circuit boa...

Page 5: ...Diagram 10 7 Operational Flow Chart 12 8 Operation Principles 13 9 Main Components 14 10 Time Charts 15 11 Wiring Diagram 16 12 Dip Switch Settings 17 13 Fault Finding 18 14 Component and Circuit Che...

Page 6: ...set by combination of dip switches on PCB NOTE 1620WS must be preset to 60 C Water flow control Water flow sensor Electronic water flow control device Maximum hot water capacity raised 25 C 16 L min W...

Page 7: ...ter pressure required to achieve maximum hot water capacity 120 kPa Maximum water flow 24 L min Maximum water flow outlet temp 60 C L min Water pressure required to achieve maximum water flow 160 kPa...

Page 8: ...lectrical power supply is stopped if the temperature exceeds 129 C Water Pressure Relief Valve Safeguards the water circuit against excessive inlet pressure Opens at 2060 kPa closes at 1470 kPa Electr...

Page 9: ...25 0 30 0 0 0 50 0 100 0 150 0 200 0 250 0 300 0 Inlet pressure kPa Outlet flow litres minute 1620 2024 P kPa 0 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 120 0 130 0 200 0 300 0 Q L min 0 0 4 9 7 6 9...

Page 10: ...m centre I Gas Connection from wall J Gas Connection from centre Gas Length from base Cold Length from base Hot Length from base Gas Fitting Diameter Cold Fitting Diameter Hot Fitting Diameter K L BC...

Page 11: ...installed with the correct polarity within the wireless controller Battery polarity details on rear of wireless controller Ensure distance between wireless controller and transceiver does not exceed...

Page 12: ...re Question 2 Fig 5 Fig 6 Is the water heater marked to state it delivers water not exceeding 50 C IF YES No further action required IF NO You will need to program the kitchen controller to enable sel...

Page 13: ...he hot water outlets before any outlets are opened using the flow and return pipework principle This results in water savings and reduced waiting time for heated water delivery from the outlet when op...

Page 14: ...o n t r o l 7 0 0 k P a V a l v e M a n d a t o r y Cold Water Supply Smartstart installed with Rinnai gas boosted solar hot water system Refer to Rinnai manuals supplied with appliances for important...

Page 15: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 10 Issue 1 5 08 09 Rinnai 6 Cutaway Diagram NOTE This diagram is of a general nature Some details may be different on some models REU VR1620...

Page 16: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 11 Issue 1 5 08 09 Rinnai REU VR2024...

Page 17: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 12 Issue 1 5 08 09 Rinnai 7 Operational Flow Chart...

Page 18: ...PCB will automatically control operation of the internal components to achieve the programmed temperature When a high temperature rise is required the PCB may cause the Water Flow Servo to close parti...

Page 19: ...ing Bath fill operation Water flow control is achieved through the use of servo driven water flow and fixed bypass valves Note only some models have a bypass valve fitted Both servo motors are control...

Page 20: ...REU VR1620WB REU VR1620WS REU VR2024WG 15 Issue 1 5 08 09 Rinnai 10 Time Charts This Model only for the 2630 Series range Normal Combustion Sequence Error Sequence Ignition Flame Failure Pre Purge Def...

Page 21: ...MODULATING SOLENOID VALVE POV P P Y FLAME ROD SV1 SV0 Bk SV2 Bk P B Bk MAIN SOLENOID VALVE SOLENOID VALVE 1 SOLENOID VALVE 2 SMALL SURGE PROTECTOR F 1 3 1 Br B Gr Y GND F 2 Br B GND FUSE 3A B Br AC240...

Page 22: ...LIMITER ON GND F3 B Br A1 COMBUSTION FAN 6 OVER DC1 A FLAME ROD 7 10 11 12 15 C 11 4 14 0k 30 C 6 4 7 8k 45 C 3 6 4 5k 60 C 2 2 2 7k 105 C 0 6 0 8k E5 20 400Hz SOLENOID VALVE 1 NORMAL VALUE FULL CLOSE...

Page 23: ...ding Table is used as illustrated below Fault Finding Table Describes possible faults and error codes page 19 Operational Flow Chart page 12 Diagnostic Points Table Summarises running and standby elec...

Page 24: ...Check modulating solenoid valve 61 Combustion fan rotation error Check combustion fan 65 Water flow control device error Water flow is not controlled Water temperature too low Check water flow servo 7...

Page 25: ...k White of connector B1 Normal DC5 10V 20 400Hz If normal proceed to Sparker Circuit 2 Faulty Replace Combustion Fan 2 Igniter Circuit a Measure resistance between Grey Grey of connector C1 Normal AC2...

Page 26: ...f normal proceed to Solenoid Valve 2 SV2 Circuit Faulty Replace Solenoid 1 6 Solenoid Valve 3 Large SV3 a Measure voltage between black yellow and black wires of solenoid connector I7 Normal DC11 13V...

Page 27: ...earth and Flame Rod terminal I4 Normal resistance AC100 160V If normal check all power inputs into PCB If power inputs okay replace PCB Faulty Replace Flame Rod c Check if the Flame Rod is securely f...

Page 28: ...nnected Normal DC4 6V Faulty Replace Water Flow Servo 12 Thermistor Circuit Check Thermistor if error code 32 is displayed Disconnect relay connector E4 and or E3 and measure resistance White White Wh...

Page 29: ...ulty Replace Valve Heater b Disconnect relay connector F6 and measure resistance between the yellow wires on the pipe frost heater at the frost heat side Normal 618 Faulty Replace Anti frost Heater 15...

Page 30: ...B REU V1620WS REU V2024WG 25 Issue 1 5 08 09 Rinnai 15 Gas Pressure Setting Procedure Refer seperate Rinnai document behind front cover of appliance 16 Gas Conversion Procedure Refer seperate document...

Page 31: ...lable where the appliances are connected with a deluxe controller This will enable service personnel to locate the maintenance history and faulty components with the appliance in operation NB When the...

Page 32: ...water operation frequency Example 6 600 Operations 100 0 999 05 Hot water fan frequency Hz pulses sec 0 999 Note 1 06 Water control connection none 0 or 1 Note 2 Bathroom Controller Additional contro...

Page 33: ...Display Error Memory History This feature will show the last 10 faults in sequence 1 Turn off at the ON OFF button This can be done during operation 2 Press the ON OFF button while holding the Water...

Page 34: ...cted in this manual Item Page 1 Removal of the Front Panel 30 2 Removal of the PCB Unit 30 3 Removal of the Surge Arrestor 30 4 Removal of Sparker 31 5 Removal of the Manifold and Burner unit 31 6 Rem...

Page 35: ...or all of the following Isolate gas supply Disconnect electrical supply from wall socket Isolate water supply Drain all water from appliance 1 Removal of the Front Panel a Remove 4 four screws 2 Remov...

Page 36: ...b Remove high tension cord c Remove Sparker fixing screw 5 Removal of the Manifold and Burner unit a Remove high tension cord and flame rod b Remove 2 pin connection of the solenoid valve c Remove 9 n...

Page 37: ...moval of Flame Rod and Electrode a Remove flame rod connector and high tension lead b Remove flame rod and electrode 7 Removal of the Gas Control a Remove Inlet gas connection b Remove control gas con...

Page 38: ...8 Removal of the Fan Motor a Remove bracket on top of fan b Remove 4 pin connector to fan motor c Remove fan motor from housing via 3 three screws 9 Removal of Water Flow Servo a Removal of Inlet Wat...

Page 39: ...tion for Anti Frost heater b Unclip Anti Frost heater from water pipes 12 Removal of Anti Frost Switch 13 Removal of Heat Exchanger a Remove fixing screws of the heat exchanger unit b Remove Heat Exch...

Page 40: ...2024WG 3 Issue Rinnai 19 Parts List NOTE Some Part details may have changed since publication of this manual Contact Rinnai to confirm spare parts details before ordering REU VR1620WG REU VR1620WB REU...

Page 41: ...00 1 1 1 1 1 101 Screw Test Point 501 275 005 1 1 1 1 1 102 Gas Control 120 0028000 1 1 1 1 1 103 Manifold LPG 16 101 749 000 1 1 1 1 1 103 Manifold NG 16 101 750 000 1 1 1 1 1 104 Manifold Packing Up...

Page 42: ...33 303 000 1 1 1 1 408 Connection 3 4 H W 333 304 000 1 409 Hot Water Plug Band 553 043 000 1 1 1 1 1 410 Valve Press Relief 337 152 000 1 1 1 1 1 700 PCB Main 210 950 000 1 1 1 700 PCB Main 210 951 0...

Page 43: ...1 1 1 1 800 Earth Screw 501 889 000 1 1 1 1 1 801 Truss Screw 501 973 010 3 3 3 3 3 802 Screw 501 0064000 3 3 3 3 3 803 Tapping Screw 501 737 000 1 1 1 1 1 804 Thermistor Fixing Screw 501 295 000 1 1...

Page 44: ...1 1 103 Manifold NG 101 752 000 1 1 104 Manifold Packing Upper 580 0108000 1 1 105 Manifold Packing Lower 580 0574000 1 1 106 Burner Case Front 098 0625000 1 1 107 Packing 580 590 000 1 1 108 Dumper 1...

Page 45: ...1 700 PCB Main 50c 210 951 000 1 701 EC Cover 2 A 098 1853000 1 1 702 Electric Control Cover 098 0627000 1 1 703 Sparker 261 157 000 1 1 704 Lead HT L 360 203 877 000 1 1 705 Ignitor Bracket 537 06190...

Page 46: ...73 010 3 3 802 Screw 501 0064000 3 3 803 Tapping Screw 501 737 000 1 1 804 Thermistor Fixing Screw 501 295 000 1 1 820 O Ring 520 300 010 1 1 821 O Ring Gas Connection 520 043 010 1 1 822 O Ring Gas C...

Page 47: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 45 Issue 1 5 08 09 Rinnai 20 Exploded Diagram REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 000...

Page 48: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 46 Issue 1 5 08 09 Rinnai...

Page 49: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 47 Issue 1 5 08 09 Rinnai...

Page 50: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 48 Issue 1 5 08 09 Rinnai...

Page 51: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 49 Issue 1 5 08 09 Rinnai REU VR2024WG...

Page 52: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 50 Issue 1 5 08 09 Rinnai...

Page 53: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 51 Issue 1 5 08 09 Rinnai...

Page 54: ...REU VR1620WG REU VR1620WB REU VR1620WS REU VR2024WG 52 Issue 1 5 08 09 Rinnai...

Page 55: ...rom mobile or public phones Hot Water Service Line Tel 1800 000 340 Australia Pty Ltd ABN 74 005 138 769 Internet www rinnai com au E mail enquiry rinnai com au Rinnai has a Service and Spare Parts ne...

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