AF-R50CX AF-R55CX AF-R60CX AF-R70CX SERVICE MANUAL S3205AFR07CX/ AIR CONDITIONER AF-R50CX AF-R55CX AF-R60CX MODELS AF-R70CX In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. TABLE OF CONTENTS Page SPECIFICATIONS ................................................................................................................................................
AF-R50CX AF-R55CX AF-R60CX AF-R70CX SPECIFICATIONS Models Cooling capacity Moisture removal ELECTRICAL DATA Phase Rared frequency Rated voltage Rated current Rated input Power factor EER BTU/h Pints/h AF-R50CX, AF-R55CX 5000 1.0 AF-R60CX 6000 1.3 AF-R70CX 7000 1.8 Hz Volts Amps Watts % BTU/Wh Single 60 115 4.6 500 95 10.0 5.5 600 95 10.0 6.3 700 97 10.0 COMPRESSOR Type Model, Motor output REFRIGERANT SYSTEM Evaporator Condenser Control O.D. x I.D.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX ELECTRICAL PARTS Models Running capacitor Fan capacitor Thermistor Fan motor AF-R50CX, AF-R55CX 250V-40µF 250V-6µF 15kΩ at 78˚F OBM-2016K1 AF-R60CX 250V-25µF AF-R70CX 250V-40µF B200-130-141E KA-122LAI21 (MLA998) Overload relay MRA99484 WIRING DIAGRAM POWER SUPPLY CORD 115V 60Hz NON RIBBED GR IN OUT FU1 CONTROL BOARD UNIT MRY BK NR OVERLOAD PROTECTOR COMPRESSOR C MOTOR RIBBED RUNNING R CAPACITOR 250V 40µF RE TR S WH BL A.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX EXTERNAL DIMENSIONS.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX OPERATION INSTRUCTIONS PARTS NAMES UNIT 5 4 3 6 7 8 9 10 2 1 1Front Cabinet 2Air Inlet (Indoor Side) 3Horizontal Louvers 4Vertical Louvers 5Air Outlet (Indoor Side) 6Control Panel 7Rear Cabinet 8Air Inlet (Outdoor side) 9Filter (Pull the filter handle to the right to remove.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX COOLING OPERATION POWER indicator SELECTOR indicator F 2 To turn off the unit, touch POWER ON/OFF pad again. POWER ON/OFF hr COOL / FAN 1 Touch POWER ON/OFF pad. • The unit is preset at 74°F and HIGH COOL. This will show in the display when the power is first turned on. • POWER indicator and SELECTOR indicator (COOL) will light. TEMP TIMER SELECTOR ON/OFF ENERGY SAVER • POWER indicator and SELECTOR indicator will go off.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX TO CHANGE FAN SPEED AND OPERATION MODE SELECTOR indicator During operation F POWER ON/OFF hr COOL / FAN Touch SELECTOR pad and select the operation mode and fan speed. • SELECTOR indicator and display will light in order as you touch. TEMP TIMER SELECTOR ON/OFF ENERGY SAVER HIGH COOL MED COOL LOW COOL LOW FAN MED FAN HIGH FAN SELECTOR pad NOTES ON OPERATION MODE: MODE SELECTOR DISPLAY HIGH COOL COOL Cooling operation with high fan speed.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX ENERGY SAVER During normal operation, the thermostat automatically controls cooling and the fan runs continuously. When the ENERGY SAVER is selected, the thermostat automatically controls cooling and the fan automatically stops when the compressor is not operating. (Fan will stop 30 seconds after the compressor stops. After the fan stops, the fan is programmed to rotate for approx. 2 minutes to detect room temperature. This will occur within a 20 min time span.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX ON TIMER OPERATION • This unit has a built-in timer that can be programmed to start the unit up to 12 hours in advance. You can set the timer to start in increments of 30 minutes (0.5 hours) up to 9.5 hours in advance of the start time, or in 1 hour increments from 10 to 12 hours in advance of the start time. • The unit will start automatically according to your setting.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX OFF TIMER OPERATION • This unit has a built-in timer that can be programmed to shut the unit off up to 12 hours in advance. You can set the timer to stop in increments of 30 minutes (0.5 hours) up to 9.5 hours in advance of the stop time, or in 1 hour increments from 10 to 12 hours in advance of the stop time. • The unit will stop automatically according to your setting.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX USING THE REMOTE CONTROL INSTALLING BATTERIES Use two size-AAA (R03) batteries. 1 2 Remove the battery compartment cover. 3 Replace the cover. Insert the batteries in the compartment, making sure the and polarities are properly aligned. Battery compartment cover NOTES: • The battery life is approximately one year with normal use. • When you replace the batteries, always use two new ones of the same type.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX OPERATING WITH THE REMOTE CONTROL TRANSMITTER POWER ON/OFF POWER ON/OFF button Push to start or stop the operation. TEMP. TEMP. TEMP. TEMP. ---Raise ---Lower temp. setting 1°F at a time. temp. setting 1°F at a time. SELECTOR HIGH COOL SELECTOR button SET TIMER/OFF MED COOL Push to change fan speed and operation mode. Fan speed and operation mode selections are shown to the right.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX ACCESSORIES 1 No. Accessories Q'ty 1 Right closure assembly 1 2 Left closure assembly 1 3 Window sash foam seal 1 4 Window sash foam seal (adhesive type) 1 5 Bottom gasket 1 6 Screws (L=1", 25.4mm) 7 13 7 Screws (L= /32", 10mm) 6 8 Base pan angle 2 9 Remote control 1 10 Battery 2 11 Remote control hook 1 2 3 4 5 6 7 6 7 8 2 9 11 10 2 SUGGESTED TOOLS 1. Screw driver (medium size Phillips) 2. Tape measure or ruler 3.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX INSTALLATION WARNING: Make sure the unit is turned off and unplugged before working. 1 Sash Cut the window sash foam seal (adhesive type) to the proper length and attach it to the underside of the window sash. Window sash foam seal (adhesive type) Jamb Sill 2 3 Insert the right closure assembly and the left closure assembly into the top angle and the bottom channels. Secure the right and left closure to the cabinet with six of the provided screws.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 5 Closure assembly (Left) Insert the closure assemblies on both sides into the rails of the jamb. Jamb (Left) Indoor side Closure assembly (Left) Indoor side 1/2 inches (13mm) Sill Stool 6 Loosen screws on both sides of the cabinet, then hang the base pan angle on and secure the screws again. 7 Secure the base pan angle to the sill by using the hole of the front side on the angle with one screw. (L=1", 25.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX DISASSEMBLING PROCEDURE CAUTION: DISCONNECT THE ROOM AIR CONDITIONER FROM THE POWER SUPPLY BEFORE ANY SERVICE 1. Unscrew the 2 screws holding the front panel on each side. 2. Remove the front panel by pulling the front panel at the lower corner toward you about one inch. Next lift up and pull it toward you. 5. Remove the control panel. 6. Unscrew the 5 screws. 3 screws are holding the control box at the top and right side. 1 screw is holding the power supply cord.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 9. Cut the wire fixing band, slide the control box rightward and remove. SLID E 13. Unscrew the 3 screws holding the condenser shround. And remove the condenser shround. 10. Unfasten the one nut at the top of the compressor holding the terminal cover. Then remove the wiring connector of the compressor cord. 14. Unscrew the 5 screws. 2 screws are holding the evaporator on each side. 3 screws are holding the bulkhead to the base pan on each side and back side. 11.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 17. Unscrew the 1 screw holding the centrifugal fan. 18. Remove the caseing. 19. Unscrew the 4 screws holding fan motor.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX DISASSEMBLING THE CONTROL BOX 1. Unscrew the 2 screws holding the control box cover. CAUTION: DISCHARGE THE FAN MOTOR CAPACITOR AND RUNNING CAPACITOR BEFORE TOUCHING THOSE CAPACITORS OR OTHER COMPONENTS OR WIRING. 5. Unscrew the 1 power supply cord grounding screw. Unscrew the earth screw. Unscrew the 1 screw holding the capacitor clamp. 6. Detach each connector by using long-noise pliers. 2. Unscrew the 3 screws holding the printed wiring board. 7.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX HOW TO REPAIR REFRIGERATION Before sealed system work can be preformed a refrigerant recovery EPA and LOCALLY approved certification is required, additionally, EPA and LOCALLY approved refrigerant recovery equipment is required. SEALED SYSTEM REPAIR Sealed system repairs should be properly diagnosed before entering into a repair of the system.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX PROPER FLUXING Flux is necessary when using silver solder; it is not required when using silfos on copper to copper joints. To do a good job the flux should cover the tube surface completely. Be careful not to introduce any flux inside the tubing. Fluxing should be done after the tubing is mated together and just before brazing is done. Do not allow it to dry out. When brazing, the flux should become entirely liquid and clear, like water.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX Type of evacuation methods 1. Piston Type Compressor No good. System parts must be above 110˚F. 2. Rotary Vacuum Pump Disavantages. Low CFMC. 4 oil gets dirty. 3. Single State Vacuum Pump will not clean oil. Oil must be changed often. DIAL-CHARGE CHARGING CYLINDER ELECTRIC VACUUM GAUGE LOW SIDE GAUGE TO RELATED SERVICE VALVE OR PROCESS TUBES OF THE UNIT. 4. Two Stage Vacuum Pump will reach 50 microns. First stage is below atmospheric pressure.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX ELECTRICAL COMPONENT TEST RUNNING CAPACITOR AND FAN CAPACITOR CAUTION: DISCHARGE THE RUNNING CAPACITOR AND FAN CAPACITOR BEFORE TOUCHING CAPACITOR OR WIRING. (1) Discharge capacitor by shorting terminals. (2) Take the wires off the capacitor terminals. (3) Set the selector switch of a volt-ohm-meter (or a tester) on the resistance range. (4) Connect the probes to the capacitor terminals and watch the indicator swing. The indicator does not swing at all ..... Open.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX MICROCOMPUTER CONTROL SYSTEM 1. Temperature control characteristic 1-1 COOL operation In the “COOL” mode, the thermostat circuit is controlled by two thermostat lines (C1, C2). 3. Fan speed Fan speeds are given by the fan motor, “H”, “M” and “L”, which are available in the following operation mode. Room temperature (°F) Table Y-1 86 C1 84 C2 Fan motor H M L H M L 64 4. 12-hours timer 62 64 Preset temperature (°F) ("THERMO" switch) 86 Figure Y-1 2.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 6. Safety start When you turn the air conditioner OFF and restart again soon, wait at least 3 minutes before the cooling operation starts. 7. Test mode Keep pushing both buttons “POWER ON/OFF” and “ " ” and supply the power, the system will go to the test mode. In this mode, the output operation is switched by pushing buttons. Normal outputs are shown in Table Y-2. Table Y-2 For selfdiagnosis check mode No.
BK CONNECTOR WHITE ORANGE RED GRAY R FAN MOTOR BL A H M L C S 5 3 1 6 7 RY1 CNR1 RY2 CNR2 RY3 CNR3 3A 125V YELLOW 4 3 2 1 CN1 12V IF NOT SPECIFIED 1SS133T-72 (DIODE) IF NOT SPECIFIED 50V 1000pF (CAPACITOR) : INDICATED POSITION IS FUNCTION TEST POINT RY3 RY2 RY1 MRY 250V 0.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX Printed Wiring Board 27
AF-R50CX AF-R55CX AF-R60CX AF-R70CX TROUBLESHOOTING GUIDE No cooling (Operation not at all.) Measure the power supply voltage at receptacle. under 100V 120V(over 100V) The house fuse or circuit breaker open ? not open. open Is it proper current capacity of the house fuse or the circuit breaker ? Ask the power supply company for check. Change the house fuse and the circuit breaker turn on.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX No cooling (Fan operate but the compressor doesn't operate.) Measure the power supply voltage at receptacle. under 100V Ask the power supply 120V(over 100V) company for check. insufficient Is it sufficient current capacity of power equipment ? Ask the power supply Is it small wiring for power company for check. supply equipment ? sufficient Measure the current in compressor circuit. current Check the overload relay.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX No cooling (The compressor operate but the fan motor doesn't operate) crack at the solder part Check BNC1 on PWB ass'y Repair with over solder. disconnecting the connector Connect the connector properly. OK Check the fan motor capacitor. NG OK Measure the resistance of compressor coil. OK Is the fan locked ? Change the fan motor capacitor NG Change the fan motor. locked Is the fan touched to another parts ? touch Change fan or another parts, or adjust.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX Insufficient cooling(Both compressor and compressor operate) Check the temperature setting. OK too high Set the lower temperature. dirty Check the air filter. not dirty Clean the air filter. Is there high heat source or any object restricting heat radiation near the unit. there is Remove the high heat source or stop. there isn't Check doors and windows. close Check the outdoor and indoor heat exchanger. open Doors and windows must be kept closed.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX Excessive vibration or Abnormal noise At fan only mode, Excessive vibration or Abnormal noise YES Check the air filter dirty NO not dirty Check rotating direction of centrifugal fan.(to clockwise) OK Clean the air filter. NG Check the fan motor connector. OK Measure the resistance of fan motor coil. OK Is the fan deformed or broken. OK Is loosened screw and nut fixing fan ? OK deform or broken Change the fan loosened Tighten up.
COOLING LOAD ESTIMATE FORM AF-R50CX AF-R55CX AF-R60CX AF-R70CX INSTRUCTIONS FOR USING COOLING LOAD ESTIMATE FORM FOR ROOM AIR CONDITIONERS (AHAM PUB. NO. RAC-1) A. This cooling load estimate form is suitable for estimating the cooling load for comfort air conditioning installations which do not require specific conditions of inside temperature and humidity. B. The form is based on an outside design temperature of 95˚F dry bulb and 75˚F wet bulb.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX BTU/Hr (Quantity x Factor) FACTORS HEAT GAIN FROM QUANTITY DAY No Shades 1. WINDOWS: Heat gain from sun. Northeast Southeast South Southwest Southeast West Northwest North Inside Shades Outside Shades 20 25 20 20 30 45 35 0 (Area a Factor) Use only the largest load Use only only 60 25 80 40 75 30 75 35 110 45 sq ft 150 65 sq ft sq ft 120 50 sq ft 0 0 These factors are for single glass only. For glass block, multiply the above factors by 0.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX RUNNING CONDITION Note: 1. Select mode of the Running Condition of a Room Air Conditioner. SELECTOR .................................................................................................... HIGH COOL THERMOSTAT .............................................................................................. 64˚F 2. Data of Performance Curve is measured between 40%RH and 70%RH.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX RUNNING CONDITION FOR MODEL AF-R70CX PERFORMANCE CURVE 800 40%RH 700 Power input (W) 70%RH 600 500 40%RH Line current(Amp.) 400 6 70%RH 5 4 Outlet air temp˚C (˚F) 30 (86) 70%RH 20 (68) 40%RH 10 (50) 25 (77) 30 (86) 35 (95) 40 (104) Outside air temp.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX PACKING AND ACCESSORIES TOP PAD ASSEMBLY (DPADBA004JBFZ) Top pad L Top pad R 4 3 6 5 5 6 Packing case SPAKCA928JBEZ: AF-R50CX SPAKCA995JBEZ: AF-R55CX SPAKCA987JBEZ: AF-R60CX SPAKCA998JBEZ: AF-R70CX Front side "Front side" mark Accessories Operation manual Window sash foam seal Window sash seal Bottom gasket Screws Base pan angle Right closure assembly Left closure assembly Remote control Battery Remote control hook 2 Enegry card TLAB-C190JBEZ: AF-R50CX TLAB-C21
AF-R50CX AF-R55CX AF-R60CX AF-R70CX REPLACEMENT PARTS LIST REF. NO. PART NO.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX REF. NO. PART NO.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX REF. NO. PART NO.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX REF. NO. PART NO.
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 1 2 3 4 5 6 CABINET PARTS 4-19 A A 6-4 4-10 4-9 4-16 4-3 4-4 4-11 4-17 6-9 1-3 4-12 4-2 4-8 1-4 4-5 B 4-14 4-1 B 4-6 6-9 6-11 4-7 4-18 4-15 6-5 4-13 6-4 6-13 1-2 C 6-10 C 6-11 6-5 6-1 1-33 1-10 1-11 6-4 6-1 1-12 D 1-8 1-9 1-26 5-3 1-30 1-7 6-4 D 5-1 1-32 1-24 1-26 [AF-R60CX only] 5-2 1-13 1-25 E 5-4 5-6 [AF-R55CX only] 6-3 2-4 E 1-34 5-5 1-14 1-21 1-17 6-8 1-19 F F 1-16 1-18 1-22 6-4 1-20 1-15 6-3 6-2
AF-R50CX AF-R55CX AF-R60CX AF-R70CX 1 2 3 4 5 6 CONTROL BOX PARTS A A 1-6 1-5 B B 6-7 2-17 2-10 C C 2-12 6-7 6-12 6-6 2-11 D D 2-7 6-4 2-16 6-5 2-2 2-8 2-3 2-10 2-5 6-5 E E 2-4 2-6 2-13 6-6 F F 2-14 2-9 2-1 6-4 6-6 G G H H 1 2 3 4 43 5 6
AF-R50CX AF-R55CX AF-R60CX AF-R70CX COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. 44 ’02 SHARP CORP. (3S0.85E) Printed in U.S.A.
