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Table of Contents
Related Manuals for Fedders R407C
Summary of Contents for Fedders R407C
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Page 1: Service Manual
FEDDERS LARGE SPLIT UNIT (R407C) SERVICE MANUAL ISSUED ON 1 APRIL,2003... - 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 FEDDERS LARGE SPLIT (R407C) MODEL NUMBER Indoor unit Outdoor unit PERFORMANCE DATA Volts / Hz / Phase Cooling - BTU/h (kW) Heating - BTU/h (kW) Amps (Cooling / Heating) Watts (Cooling / Heating) EER (Cooling) Indoor Sound Level (dBA) Moisture Removel (Litres/h)
- Page 5 SECTION B: PARTS LIST AND EXPLODED VIEWS...
- Page 6 MODEL E1FE418N6D - E1FC418N6G EHFE418N6D - EHFC418N6G E1FE424N6D - E1FC424N6G EHFE424N6D - EHFC424N6G FEDDERS LARGE SPLIT AIR CONDITIONER(R407C) SERVICE PARTS LIST BTU/h (kW) MODE Volt / Hz 17500 (5.13) COOL 220-240 / 50 17500 (5.13) COOL 220-240 / 50 18300 (5.36) HEAT 220-240 / 50 21500 (6.30) COOL 220-240 / 50...
- Page 7 Discharge Cover Bearing, Discharge Cover, Mid Bearing, Discharge Cover, Left Plug, Drip Tray Drain Hose Asm. (include drain hose,insulation) Decorative Front Grille,Neuter Decorative Front Top Cover FEDDERS LARGE SPLIT (R407C) Service Part # 36-08-00010-001 36-08-00020-001 36-08-00030-001 36-08-00050-001 36-08-00060-001 36-08-00070-001 36-08-00080-001 35-16-90010-001...
- Page 8 Cover, Terminal Connection Strain Relief, Interconnect Metal Electrical Box Asm Electrical Box, Front Holder, Receiver Mount Plate, Terminal Block Terminal Block ,9P Cover, LED Base, LED FEDDERS LARGE SPLIT (R407C) Service Part # 35-16-00010-001 35-03-01460-001 35-03-00260-001 36-08-00250-001 36-08-00260-001 36-08-00270-001 37-16-08540-001 36-08-00280-001 36-08-00290-001...
- Page 9 Remote Control (H/P),Neuter Remote Control Holder Packaging Clam Shell Carton,Neuter Accessory Kit Carton Unit Plastic Bag Signal/Thermistor Wire 15M,OD User Manual Installation Manual FEDDERS LARGE SPLIT (R407C) Service Part # 35-16-04160-012 50-18-0015N-001 35-16-04110-011 35-16-04120-011 36-08-00420-001 36-08-00430-001 36-08-00440-001 36-08-00450-001 35-03-01280-001 35-05-00200-001...
- Page 13 Base Pan Asm. (1-48 Frame) Base Pan Asm. (Bristol) (include base pan and mounting legs - painted) Service Valve Plate (painted) 3-Way Service Valve, 5/8" 2-Way Service Valve, 3/8" FEDDERS LARGE SPLIT UNIT (R407C) Service Part # 35-24-05150-001 35-24-05010-083 37-24-01010-001 35-24-90000-001 35-08-02000-001 35-24-05050-081 35-24-05080-083...
- Page 14 Terminal Block, 5 Pole Control Box Fan Motor Capacitor, 3uF Compressor Capacitor, 40uF/440V Strap, Capacitor Start Assist Strain Relief (Multi Usage Type) Thermostat-Bimetal FEDDERS LARGE SPLIT UNIT (R407C) Service Part # S0-02-C0002-N14 35-24-08020-002 35-24-08030-002 37-24-01020-001 50-16-0114N-001 50-16-0115N-001 37-03-08190-001 35-11-00340-009 35-11-00340-010...
- Page 15 EPS Side Post EPS Side Pad EPS Bottom Pad Carton Box Base Drain Adapter Kit (include drain adapter, gasket) Rubber Damper Feet Plastic Bag FEDDERS LARGE SPLIT UNIT (R407C) Service Part # 35-24-00070-N01 35-24-00030-001 35-24-00040-001 35-08-02060-001 35-24-00020-001 35-24-00050-001 35-24-00060-002 35-24-00080-001...
- Page 20 SECTION C: INSTALLATION...
- Page 21 ® SPLIT TYPE AIR CONDITIONER INSTALLATION MANUAL For 18,000 - 24,000 Btu...
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Page 22: Table Of Contents
SAFETY PRECAUTION ... C3 PART LISTS ... C4 PREPARATION OF PIPING ... C5 Pipe Length, Elevation and refrigerant charge ... C5 Flaring of pipe ... C6 INDOOR UNIT INSTALLATION ... C7 Locating the indoor unit ... C7 Installing the wall bracket & drilling the piping hole..C7 Routing the drain hose and tubing... -
Page 23: Safety Precaution
• All wiring must conform to local and national electrical codes. • To avoid possible electrical shock, you must ground your air conditioner. • This air conditioner requires a separate power supply on a separate fused circuit. • If the supply cord is damaged, it must be replaced by a qualified techni- cian. -
Page 24: Part Lists
A number of small parts have been packed with the indoor unit. Please check the contents of the box with the list below. Description Wall Bracket Indoor To Outdoor Signal Connecting Wire (For Heat- pump Model Only) Remote Control AAA batteries Screws for Remote Control Holder Remote Control Holder... -
Page 25: Preparation Of Piping
Pipe Length, Elevation and refrigerant charge • Each outdoor unit comes with a refrigerant 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 according to the table as shown below. -
Page 26: Flaring Of Pipe
Removing burrs • Remove burrs from the cut edges of the pipes. • Turn the pipe end down to avoid the metal powder entering the pipe. CAUTION : CAUTION : If burrs are not removed, they may If burrs are not removed, they may cause a gas leakage when in cause a gas leakage when in operation. -
Page 27: Indoor Unit Installation
Locating the indoor unit • Do not install the unit near any heat source, steam source or flammable gas source. • Locate the unit in a place where it will provide cool air throughout the room. • Make sure the minimum distances from the walls and obstructions are main- tained as shown on the right. -
Page 28: Routing The Drain Hose And Tubing
Removing The Decorative Front • Remove the Decorative Front by removing 3 screws. • Remove it by lifting it up and then out. Routing the drain hose and tubing • The following illustrate the different piping outlet option. Right Back Outlet If you are using the following outlet option, you must wire the indoor unit before attaching it to the wall bracket. -
Page 29: Sealing The Drain Hose And Tubing
Sealing The Drain Hose And Tubing • Wrap the drain hose, tubing and elec- tric wire together with polyethylene tape. • Wrap all exposed tubing with tape except tubing, which will rest inside the unit. • Insert the tubing, hose and wire through the wall tube with the drain hose in the lowest position. -
Page 30: Attaching The Unit To The Wall Bracket
Attaching The Unit To The Wall Bracket If you are using right, left or bottom piping outlet (see page 8) you must wire the unit before you attach it to the wall bracket. • Hook the unit to the hangers on top of the bracket first and then press the lower left and right side of the unit against the wall bracket until it is... -
Page 31: Connecting The Piping To The Indoor Unit
Connecting The Piping To The Indoor Unit • Align the center of the piping and then sufficiently tighten the flare nut with fingers, tighten the flare nut with torque wrench according to the table as shown below. Pipe Size Torque (N.m) Diameter 35.6 - 44.4 9.52mm (3/8”) -
Page 32: Outdoor Unit Installation
Locating the outdoor unit • Locate the outdoor unit where the air flow around it is not obstructed. • Ensure that the base is 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. -
Page 33: Installing The Outdoor Unit
Installing The Outdoor Unit • Attach the Base Leg Damper by sliding the slot into the base of the outdoor unit. • Attach the drain gasket and drain adapter to the base pan of the unit before you secure the unit. •... -
Page 34: Connecting The Wires To The Outdoor Unit
• Form a drip loop in the wire to prevent water from entering the unit along the cord. Caution Caution This air conditioner must be This air conditioner must be disconnected from the supply by a disconnected from the supply by a switch having a 3mm contact switch having a 3mm contact separation in all poles. -
Page 35: Vacuuming The Piping & The Indoor Unit
VACUUMING THE PIPING & THE INDOOR UNIT Checking for gas leakage • Connect the Manifold gauge to the outdoor unit gas line port as shown on the right. • Connect the charging cylinder to the Manifold gauge and open the valve of the Cylinder. -
Page 36: Restraining The Piping
VACUUMING THE PIPING & THE INDOOR UNIT • Unscrew the cap on the 2-way and 3-way valve. • After all lines are installed and leak tested, set both the liquid and gas line valves to fully open position with the Allen Key for the unit operation, as shown. -
Page 37: Test Run & Check
Switch On The Power Supply CAUTION : CAUTION : Ensure that all the piping and wiring are connected properly and Ensure that all the piping and wiring are connected properly and securely, before turning the power On. securely, before turning the power On. •... -
Page 38: Notice To The Consumer
NOTICE TO THE CONSUMER Checking The Unit • Check all the control functions. • Check all the indicator lights. • Check that the drain hose is draining properly. • Ensure all the units are fastened properly and free from vibrations. Upon completion of installing and checking the unit: •... - Page 39 SECTION D: TROUBLE SHOOTING...
- Page 41 SYMPTOM Both fan & compressor not running. Fuse open or breaker tripped. Poor power plug connection. Power failure. Control circuit malfuction. Compressor does not run. Compressor motor windings open. Compressor locked. Defective overload. Defective capacitor. Control circuit malfuction. Voltage drop at start. Pressure unequal at start.
- Page 42 SECTION E: WIRING DIAGRAM...
- Page 47 SECTION F: TECHNICAL DATA...
- Page 48 REMOTE CONTROL AND PC BOARD FUNCTIONAL SPECIFICATIONS The electronic air-con control system consists of : CONTROL SYSTEM 1) Hand-held Infra-Red transmitter with Liquid Crystal Display panel (hand held unit) 2) Receiver module consisting of: a) Main receiver Board b) LED Board c) Sensor Board 3) The devices that are controlled by this electronic control system are : a) Outdoor Compressor...
- Page 49 Hand-held Transmitter Operating Voltage Power Source Battery Life Expectancy Range of Transmission Angle of Transmission Medium of Transmission The hand-held transmitter has an iconic LCD panel that displays the following information: Iconic representation of current mode of operation ii) Value of set/desired room temperature iii) Iconic representation of current indoor fan speed iv) Iconic representation of current vane position v) Vane swing icon, appears if vane swing function has been activated.
- Page 50 h) CLOCK button i) SLEEP button j) START button k) STOP button l) HR. button m) MIN. button (a) to (d) and (i) are exposed buttons. The remaining buttons are concealed behind a hinged door. A "beep" sound, acknowledging the reception of a valid infrared signal will be generated by the main receiver board if a valid button is pressed.
- Page 51 1.1. Operation / Filter Reset Button. Operation By pushing this button, one of the following two air-con operations are selected. a) AUTOMATIC operation Selecting this operation is equivalent to selecting Auto mode, b) OFF operation Note that the ac. power supply is still connected to the receiver module of the electronic controller although the air-con is switched off.
- Page 52 c) Filter dirty/System Fault (red) Infra Red Sensor Board An Infra-Red sensor on this board detects infra-fed signal transmission from the remote hand held transmitter. Operations of the electronic controller In manual operation, the air-con is switched on when ON/OFF button of the hand held transmitter is pressed while the air-con is off.
- Page 53 3-min. compressor switch on delay The compressor is not switched on again immediately after being switched off. The air-con controller waits for 3 minutes before turning it on again to protect it. This protective measure applies throughout the operation of the air-con except on power-up.
- Page 54 Modes of Operation Cool Mode The air-con controller lowers the room temperature in this mode. In cool mode, the indoor fan is always turned on, allowing it to run at the set speed. To stop the cool mode cycle, the compressor, outdoor fan are turned off, the 4-way valve which serves no function in this mode is still kept at off.
- Page 55 If the room temperature >=31 C, compressor off, outdoor fan off and 4-way valve remains on, indoor fan runs according to following table: ID Room Temp., Tr Tr<=31 C ID Fan Maintain current state The heating cycle starts and stops according to the result of set temperature - room temperature comparison: ID Room Temp.
- Page 56 Temperature Control and Measurement Temperature Measurement Accuracy The temperature measurement range of the air-con controller is from -10ºC to 60ºC. Measurement accuracy is given in the following Table: ºC ºC Room Temperature Control Range The room temperature control range of the air-con controller is from 16ºC to 31ºC, both inclusive.
- Page 57 When the indoor fan control is set to Auto, the fan speed is automatically selected according to the mode of operation, set temperature and room temperature. In cool mode, choosing Auto Fan will result in the following automatic fan speed selection: Room Temperature <...
- Page 58 VIII. Vane Function Vane Position HOME The vane will be at this position whenever the air-con is off. Its exact angle is 115 counter-clockwise from position 3. POSITION 1 The vane plane is positioned 70 counter-clockwise from position 3. cool, dry and fan modes default vane position.
- Page 59 Sleep Function Sleep function is only selectable in manual operation, but it is not available in dry and fan modes. When this function is selected, the Indoor Fan immediately runs at low speed, all timer functions will be overridden and disabled at the same time. In cool or auto-cool mode, One hour after Sleep function is selected, the temperature set point will be raised by 1ºC.
- Page 60 Timer Function The start timer will switch the air conditioner ON at the start time set in the hand-held transmitter, while the stop timer will switch the air-con OFF at the specified stop time. Both timers can be activated together to perform "ON-OFF-ON" or "OFF-ON-OFF"...
- Page 61 Device Protection Measures 3-minutes compressor switch on delay The compressor is not switched on again for 3-minutes every time after it is switched off to protect it. This restriction applies throughout the operation of the Air-con except on power- Cool mode protection (Low-pressure indicator) If the indoor coil thermistor temperature is 25 C and above after the compressor has been turned on for more than 30 minutes in cool mode only, the compressor stop, outdoor fan stop, 4-way valve off and indoor fan run at low speed and the RED LED will blink at 95 times per...
- Page 62 For example, if the temperature set point is 20°C when cool mode is entered at a room temperature of 21°C, the controller will start the cool mode cycle to cool the room. The cycle still continues when the room temperature later lowers to 20°C. It finally stops when the room temperature lowers further to 19°C.
- Page 63 When the indoor coil temperature reaches 10ºC or higher for 2 minutes de-icing will be terminated and normal cool mode operation resumes. However, if the coil temperature is still below 10ºC after 10 minutes, de-icing operation will still be terminated to resume normal cool mode operation.
- Page 64 Defrosting in HEAT mode (applicable on Heat Pump Unit only) a) Defrost starting conditions When all conditions of i) ~ iii) are satisfied, defrosting operation starts. i) The indoor coil thermistor read 42 C ii) The outdoor coil thermistor reads -4 C or below. iii) The difference between the Indoor-coil Thermistor and Indoor air thermistor 22 C.
- Page 65 Outdoor Coil De-icing in Heat Mode (applicable on Heat Pump Unit only) The air-con controller heats up the outdoor coil to melt the ice formed at outdoor coil. To achieve this, the compressor must be turned on, while 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.
- Page 66 XII. Thermistor fault indication The electronic controller flashes the filter LED when a thermistor fault is detected. The filter LED blinking according to the time specified until the thermistor fault is rectified. 1. Heat Overload Protection Algorithm Comp. ON OD Fan ON ID Fan Set Comp.
- Page 67 Self Test XIII. Main PCB Self-test To initiate the self-test sequence, execute the following: a) Turn on the ac. supply to the air-con. b) Press and hold the Operation / Filter reset button for 6 seconds after which you can hear 2 beep sound to indicate activation of self-test sequence.