Fedders R407C Service Manual Download Page 1

  

ISSUED ON 1 APRIL,2003  

 

FEDDERS 

LARGE SPLIT UNIT (R407C) 

SERVICE MANUAL 

 

Summary of Contents for R407C

Page 1: ...ISSUED ON 1 APRIL 2003 FEDDERS LARGE SPLIT UNIT R407C SERVICE MANUAL...

Page 2: ...SECTION A SPECIFICATIONS SECTION B PARTS LIST AND EXPLODED VIEWS SECTION C INSTALLATION SECTION D TROUBLE SHOOTING SECTION E WIRING DIAGRAM SECTION F TECHNICAL DATA...

Page 3: ...SECTION A SPECIFICATIONS...

Page 4: ...40 16 1020 40 16 1020 40 16 1020 40 16 Depth 195 7 68 195 7 68 195 7 68 195 7 68 Height 320 12 60 320 12 60 320 12 60 320 12 60 Outdoor Unit Width 895 35 2 895 35 2 895 35 2 895 35 2 Depth 331 13 0 3...

Page 5: ...SECTION B PARTS LIST AND EXPLODED VIEWS...

Page 6: ...8N6G 17500 5 13 COOL 220 240 50 9 8 2060 8 5 1 43 kg EHFE418N6D EHFC418N6G 17500 5 13 COOL 220 240 50 9 8 2060 8 5 1 50 kg 18300 5 36 HEAT 220 240 50 9 8 2154 8 4 E1FE424N6D E1FC424N6G 21500 6 30 COOL...

Page 7: ...ower Wheel Dia102x763lg Antimould 36 08 00110 002 1 1 1 1 11 Blower Wheel Grommet Asm 36 08 00120 001 1 1 1 1 include grommet bearing 12 Drip Tray 36 08 00130 001 1 1 1 1 include PS and PE insulation...

Page 8: ...ttings top bottom back coil Asm connecting tubes ELECTRICAL ASSEMBLY 29 Metal Cover Electical Box 36 08 00280 001 1 1 1 1 30 Metal Cover Terminal Connection 36 08 00290 001 1 1 1 1 31 Base Main PCB 36...

Page 9: ...r 35 03 01280 001 1 1 1 1 NI Spring Thermistor 35 05 00200 001 1 1 1 1 NI Indoor Air Thermistor 10K 35 11 04140 03K 1 1 1 1 NI Indoor Coil Thermistor 10K 35 11 04110 03K 1 1 1 1 NI Outdoor Coil Thermi...

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Page 13: ...5140 001 1 1 1 1 10 Compressor Blanket 35 05 00190 001 1 1 1 1 11 Motor Mounting Bracket Painted 35 24 05090 081 1 1 1 1 12 Partition Asm with foam seal 37 24 08130 001 1 1 1 1 44 Wiring Diagram C O 3...

Page 14: ...Reversing Valve 37 03 08190 001 1 1 25 Crankcase Heater 35 11 00340 009 1 Crankcase Heater 35 11 00340 010 1 47 Check Valve 36 08 00580 001 1 1 51 Overload Protect DB35 00011C 35 05 00620 001 1 1 70 F...

Page 15: ...Top Left 35 24 00030 001 1 1 1 1 36 EPS Pad Top Right 35 24 00040 001 1 1 1 1 37 EPS Tie bar 35 08 02060 001 1 1 1 1 38 EPS Side Post 35 24 00020 001 2 2 2 2 39 EPS Side Pad 35 24 00050 001 1 1 1 1 4...

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Page 20: ...SECTION C INSTALLATION...

Page 21: ...SPLIT TYPE AIR CONDITIONER INSTALLATION MANUAL For 18 000 24 000 Btu C1...

Page 22: ...C8 Sealing The Drain Hose And Tubing C9 Attaching The Unit To The Wall Bracket C10 Wiring The Indoor Unit C10 Connecting The Piping To The Indoor Unit C11 OUTDOOR UNIT INSTALLATION C12 Locating the ou...

Page 23: ...y object into the air inlet and air outlet WARNING WARNING CAUTION CAUTION Keep this manual for future reference as it contains important installa tion and safety instructions Do not install the outdo...

Page 24: ...he box with the list below Indoor To Outdoor Signal Connecting Wire For Heat pump Model Only Description Quantity 1 1 Remote Control 2 AAA batteries 2 Screws for Remote Control Holder 1 Remote Control...

Page 25: ...efrigerant charge that is sufficient for use with interconnecting tubing up to 7 5 metres If the required interconnecting tube exceeds 5 metres for each additional metre add the amount of refrigerant...

Page 26: ...tubing with the threaded end facing the end of the tubing Clamp the tube in the flaring block adjust the tube so that it is slightly above the block about 1 3 of the total height of the flare Place t...

Page 27: ...wall bracket in a level angle Secure the bracket directly on the wall If you are mounting the bracket on plaster board use the tapping screws provided to secure the bracket on to the wall If you are m...

Page 28: ...oving 3 screws Remove it by lifting it up and then out Right Outlet Left Outlet Left Back Outlet Bottom Outlet Removing The Decorative Front INDOOR UNIT INSTALLATION Do not remove the flare nut from t...

Page 29: ...l rest inside the unit Drain hose Tubing Polyethylene tape Use caution when bending Piping Tape Gas Pipe Insulations Drain Pipe Liquid Pipe Connecting Wire Insert the tubing hose and wire through the...

Page 30: ...oper position Drain Hose You may connect the wires to the indoor unit by opening the Decorative Front Grille Remove 2 screws that secure the Control Box Cover Connect the wire as shown on the wire dia...

Page 31: ...fficiently tighten the flare nut with fingers tighten the flare nut with torque wrench according to the table as shown below Flare nut Indoor unit tubing Torque wrench Spanner Pipe Size Diameter Torqu...

Page 32: ...level and does not exceed the maximum slope of 5 degrees Secure the unit to a base with anchor bolts to reduce vibrations and noise Place the unit with access space for servicing and maintenance Do no...

Page 33: ...sten the unit down referred to the mounting dimensions as shown here 604mm 356mm Connecting The Pipe To The Outdoor Unit Align the center of the piping and sufficiently tighten the flare nut with fing...

Page 34: ...g the orientation as shown below Wire Retainer Connecting Wire For Flat Type For Round Type Drip Loop Service Cover Screw Wires Caution Caution This air conditioner must be This air conditioner must b...

Page 35: ...which may cause a malfunction or ineffectiveness of the com pressor Connect the center hose of the Manifold gauge to the vacuum pump Connect the Manifold gauge to the outdoor unit gas line port as sh...

Page 36: ...insulation and seal it with polyethylene tape You may connect an additional drain hose The end of the drain outlet should keep a distance from the ground Tape the connecting piping drain hose and wir...

Page 37: ...ng are connected properly and securely before turning the power On securely before turning the power On Turn the main switch of the unit to On Operate the Indoor unit at Cool ing Heating mode for fift...

Page 38: ...clean the air filters Explain the 3 minute delay function NOTICE TO THE CONSUMER Checking The Unit Check all the control functions Check all the indicator lights Check that the drain hose is draining...

Page 39: ...SECTION D TROUBLE SHOOTING...

Page 40: ...D1...

Page 41: ...rature pressure defective compressor Replace part Small or no sound of refrigerant flow System restriction replace capillary tube High rise in temperature pressure of and strainer condenser frost form...

Page 42: ...SECTION E WIRING DIAGRAM...

Page 43: ...E1...

Page 44: ...E2...

Page 45: ...E3...

Page 46: ...E4...

Page 47: ...SECTION F TECHNICAL DATA...

Page 48: ...ure control range of 16 C to 31 C f 3 minute compressor switch on delay except on power up or system reset for compressor protection g 60 second four way valve switch over meaning switch from ON to OF...

Page 49: ...vii On off timer settings if timer function has been activated viii Sleep function icon if sleep function has been activated ix Arrow icon to indicate the sequence of ON OFF timer actions x Signal tra...

Page 50: ...he CLOCK button has been pressed prior to this step Adjust the minute setting of the ON OFF timer if the Start Stop button has been pressed a to d and i are exposed buttons The remaining buttons are c...

Page 51: ...Whenever the Air con is switched on the air filter usage time will be monitored by the microcontroller When the period of usage reaches 500 hours the red LED on the LED board will light up to indicat...

Page 52: ...al in cool mode and reset by turning off main power supply In case the thermistor is fault the transimitter will not be able to function applicable on Heat Pump Unit only Check thermistor open or shor...

Page 53: ...peration time to blow out warm air The indoor fan runs according to the following table during heat mode STEP 1 ID Coil Temp T T 28 C 28 C T 30 C T 30 C ID Fan STOP LOW STEP 2 ID Coil Temp T T 33 C 33...

Page 54: ...from the indoor air and tries to maintain room temperature to the default set temperature of 22 C To dry the air the controller executes the dry mode cycle which toggles the compressor and outdoor fa...

Page 55: ...on controller will automatically select cool dry or heat mode when this mode is first selected The selected mode of operation will not be exited until Auto mode is de selected If automatic operation i...

Page 56: ...rol range of the air con controller is from 16 C to 31 C both inclusive In manual operation set temperature is adjusted using the temperature setting buttons and on the hand held transmitter At each p...

Page 57: ...to 23 C In dry mode the indoor fan constantly runs at low speed The Auto Fan function is not available Room Temperature Set pt 1 C Set pt 1 C Set pt Set pt 1 C Set pt 1 C Indoor Fan Speed LOW LOW LOW...

Page 58: ...y closed In manual operation the vane can be set to position 1 position 2 and position 3 or made to swing using the hand held transmitter If the user does not wish to control the vane position the Aut...

Page 59: ...OFF Actions of Sleep function in cool mode In heat or auto heat mode applicable on Heat Pump Unit only one hour after Sleep function is selected the temperature set point will be lowered by 1 C Two h...

Page 60: ...mer operation In addition the yellow LED on the LED board will be lighted to indicate that at least one timer is in operation ON OFF ON Operation If the current time is 8 00 PM the following timer set...

Page 61: ...fan remain on 4 way valve remain off indoor fan run at set speed 3 Heat mode protection applicable on Heat Pump Unit only If the indoor coil thermisor temperature is 28 C and below after the compress...

Page 62: ...to 20 C again the cycle will still not start The heat mode cycle will only start when the room temperature descents further to 19 C 5 Indoor Coil Protection Against Icing in Cool Mode After switching...

Page 63: ...Outdoor Coil Protection Against Icing in Heat Mode applicable on Heat Pump Unit only After switching on the compressor in heat mode the electronic air con controller will monitor the outdoor coil tem...

Page 64: ...on defrost interval is described in 3 b Defrost termination conditions When the condition of i or iv is satisfied the defrosting operation stops iv The defrost thermistor reads above 5 C v The defros...

Page 65: ...the 4 way valve must be turned off During this period the indoor fan must be switched off with exception condition as stated in Note 1 otherwise it will fill the room with cool air and cause discomfo...

Page 66: ...ump Large Split Heat Mode Protection Control Sequence Legend Comp Compressor OD Outdoor Indoor fan runs according to section IV cool fan prevention in heat mode Comp ON OD Fan ON ID Fan Set Comp ON OD...

Page 67: ...indoor fan runs at low speed for 3s viii Following the indoor fan runs at medium speed for 3s ix Following the indoor fan runs at high speed x 3s later the vane moves to down position taking 3 42s sta...

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