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Related Manuals for Panasonic CS-A281 KR
Summary of Contents for Panasonic CS-A281 KR
- Page 1 Order No: MAC011105AC3 Room Air Conditioner CS-A281KR.CU-A281KR 2001 Matsushita Air-Conditioning Corp. Sdn. Bhd. (183914D) All rights reserved. Unauthorized copying and distribution is a violation of law. PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 2 1. Features - High Efficiency - High Efficiency Airflow Circuit - Compact Design - Soft Starter Current - Auto Restart after Power Failure - Long Piping up to 30m - Catechin Deodorizing Air Filter - Deodorizing Control during operation - Cold draught Control 2.
- Page 3 Unit CS-A281KR CU-A281KR Cooling Capacity 8.00 - 7.92 Btu/h 27,300 - 27,000 Heating Capacity 8.40 - 8.35 Btu/h 28,700 - 28,500 Moisture Removal Pint/h Power Source Phase Single 240 - 230 Cycle Airflow Method OUTLET SIDE VIEW TOP VIEW INTAKE Air Volume Indoor Air (Lo) Cooling;...
- Page 4 Noise Level dB (A) Cooling; 48/46/44 Cooling; 63/ Heating; 48/44 Heating; 63/ Electrical Data Input Cooling; 2.65 -2.62 Heating; 2.90 - 2.88 Running Current Cooling; 12.0 - 12.2 Heating; 13.2 - 13.2 Cooling; 3.02 - 3.02 Heating; 2.90 - 2.90 Starting Current Piping Connection Port inch...
- Page 5 Refrigerant Control Device — Capillary Tube Refrigeration Oil — SONTEX 200 LT (1,242) Refrigerant (R-22) g (oz) — 1,800 (63.5) Thermostat Electronic Control Electronic Control Protection Device Inner Protector Inner Protector Capillary Tube Length — Cooling; 850, Heating Flow Rate l/min —...
- Page 6 PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 7 5. Refrigeration Cycle Diagram 6. Block Diagram PDF created with pdfFactory Pro trial version www.pdffactory.com...
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Page 8: Wiring Diagram
7. Wiring Diagram PDF created with pdfFactory Pro trial version www.pdffactory.com... -
Page 9: Operation Details
8. Operation Details 8.1. Cooling Mode Operation Cooling in operation according to Remote Control setting. Time Delay Safety Control (3 minutes) PDF created with pdfFactory Pro trial version www.pdffactory.com... - Page 10 - When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed. - When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
- Page 11 When Automatic Fan Speed is selected at Remote Control during cooling operation. - Fan speed rotates in the range of Hi to Me. - Deodorizing Control. Cooling Operation Time Diagram PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 12 8.2. Soft Dry Mode Operation - The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and then Soft Dry operation will start. - During Soft Dry operation, the Indoor Fan operates with Lo speed. - Once room temperature reaches below Soft Dry OFF temperature, Indoor Fan, Compressor and Outdoor Fan Stop for 6 minutes.
- Page 13 Soft Dry region, 6 minutes waiting is valid during compressor stops.) Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during Soft Dry operation. - Fan speed rotates at Lo speed. - Deodorizing Control. Soft Dry Operation Time Diagram PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 14 8.3. Heating Mode Operation - Heating in operation according to Remote Control setting. Time Delay Safety Control - When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.
- Page 15 - The compressor will start automatically if it has stopped for 30 minutes even if the room temperature is below the compressor OFF temperature. Overload Protection Control - If the temperature of the Outdoor Heat Exchanger less than -3°C, Outdoor Fan is ON. The Outdoor Fan stop, when Outdoor Heat Exchanger temperature is T or more according to Outdoor Air Temperature region as table below:...
- Page 16 Hot Start is completed when indoor heat exchanger reaches 42°C. Maximum Hot start duration = 4 minutes. After 4 minutes, Hot start operation will be shifted to normal Heating operation. Automatic Fan Speed Mode When Automatic Fan Speed is selected at Remote Control during heating operation.
- Page 17 Heating Operating Time Diagram PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 18 Deicing Control Deice starts to prevent frosting at outdoor heat exchanger. - Normal Deicing Deice operations detection commences in Heating operation starts or 60 minutes after previous deice operation. If the outdoor piping temperature drops to -4°C for 50 sec. continuously during compressor is in operation, deice will start.
- Page 19 a) Normal Deicing Time Diagram b) Overload Deicing Time Diagram 8.4. Automatic Mode Operation 1. When the Automatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 20 seconds to sense intake air temperature and determine the 1st operation mode. PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 20 Standard for Determining Operation Mode 1st Judgement 2. Operation mode will be determine again after 1 hour of operation, if the room temperature reaches to set temperature and compressor off time is over 7 minutes 30 seconds continuously. Indoor intake air is less than 16°C, Heating mode will immediate operate.
- Page 21 Present Judgement Next Mode Mode Cooling Soft Dry Heating Cooling 23°C Cooling (Judgement: Not Applicable (Judgement 23°C & Above) Below Heating Soft Dry 20°C Soft Not Applicable (Judgement: (Judgement 20°C & Above) Below Heating Heating (Judgement: Not Applicable (Judgement Cooling 25°C Heating 25°C &...
- Page 22 Heating Operation When you press the SLEEP Mode, the following movement will start to avoid overheating. - The fan speed refer to Indoor Fan Motor Control. - The setting temperature will be risen by 2°C at the start of operation and by 3°C one hour later. - The operation will stop after 8 hours.
- Page 23 Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button. Fan Speed High Speed Low Speed Manual Cooling Auto Sleep Soft Dry Manual, Auto Sleep Manual Heating Auto Sleep SSLo STOP 8.8.
- Page 24 The left and right airflow direction louvers can be adjusted manually. 1 There is no swinging while indoor fan is stopped during Cooling and Soft Dry operation. 2 In Heating operation, when the indoor heat exchanger temperature rises to 38°C, the airflow direction is changed from upper limit to lower limit.
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Page 25: Installation Instructions
- For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time. - For Heating mode, the operation will start 30 minutes before the set time. - For Automatic mode, the indoor fan will operate at SLo speed for 20 seconds, 30 minutes before the set time to detect the intake air temperature to determine the operation mode. - Page 26 - Electrical work must be installed by all licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed. - The caution items stated here must be followed because these important contents are related to safety.
- Page 27 1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire. 2. Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire.
- Page 28 1. Grounding is necessary. It may cause electrical shock if grounding is not perfect. 2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 3.
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Page 29: Select The Best Location
Applicable: Flaring piping kit CZ-52F SELECT THE BEST LOCATION INDOOR UNIT - There should not be any heat source or steam near the unit. - There should not be any obstacles blocking the air circulation. - A place where air circulation in the room is good. - A place where air drainage can be easily done. - Page 30 - Do not place any obstacles which may cause a short circuit of the discharged air. - If piping length is over 10 m, additional refrigerant should be added as shown in the table. Piping length and the elevation Pipe size Max. Max.
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Page 31: Indoor Unit
- This illustration is for explanation purposes only. / The indoor unit will actually face a different way. 10.2. INDOOR UNIT 10.2.1. SELECT THE BEST LOCATION / (Refer to “Select the best location” section) 10.2.2. HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent it from the vibration. - Page 32 : Unit centre should be at more than 700 mm at right and left of the wall. The height should be more than 250 mm from the ceiling. : From installation plate end to unit left side end is 55 mm. : From installation plate end to unit right side end is 55 mm.
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Page 33: Indoor Unit Installation
10.2.4. INDOOR UNIT INSTALLATION 1. For the right rear piping 2. For the right and right bottom piping 3. For the embedded piping PDF created with pdfFactory Pro trial version www.pdffactory.com... - Page 34 PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 35 (This can be used for left rear piping and left bottom piping also.) PDF created with pdfFactory Pro trial version www.pdffactory.com...
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Page 36: Connect The Cable To The Indoor Unit
10.2.5. CONNECT THE CABLE TO THE INDOOR UNIT 1. The inside and outside indoor/outdoor connecting cable can be PDF created with pdfFactory Pro trial version www.pdffactory.com... - Page 37 connected without removing the front grille. 2. Indoor/outdoor connecting cable between indoor unit and outdoor unit shall be approved polychorprene sheathed 5 × 2.5 mm flexible cord 245 IEC 57 (Rubber insulated cable GP 85PCP or HD 85PCP AS/NZS3191) or heavier cord. Ensure the color of wires of outdoor unit and the terminal Nos.
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Page 38: How To Take Out Front Grille
illustration at below. HOW TO TAKE OUT FRONT GRILLE Please follow below steps to take out front grille if necessary such as when servicing. Remove the Grille from the chassis. 1. Set the up-and-down air direction louver to open position (horizontally) by finger pressure. -
Page 39: Install The Outdoor Unit
1. When installing two air conditioners in one room, each air conditioner can be synchronized to the remote controller. 2. In order to operate separately, open the rear cover of one of the remote controller and set the switch to “B”. 3. -
Page 40: Cutting And Flaring The Piping
- Further tighten the flare nut with torque wrench in specified torque as stated in the table. Connect the Piping to Outdoor Unit 1. Align the center of the piping and sufficiently tighten the flare nut with fingers. 2. Finally, tighten the flare nut with torque wrench until the wrench clicks. -
Page 41: Evacuation Of The Equipment
10.3.4. EVACUATION OF THE EQUIPMENT WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. If air remains in the indoor unit and refrigeration pipes, it will affect the compressor, reduce to cooling capacity, and could lead to a malfunction. -
Page 42: Connect The Cable To The Outdoor Unit
set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. Note: BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE. 5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve. -
Page 43: Pipe Insulation
10.3.6. PIPE INSULATION 1. Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation Diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by using POLY-E FOAM with thickness 6 mm or above. -
Page 44: Evaluation Of The Performance
EVALUATION OF THE PERFORMANCE 1. Operate the unit at cooling operation mode for fifteen minutes or more. 2. Measure the temperature of the intake and discharge air. 3. Ensure the difference between the intake temperature and the discharge is more than 8°C. CHECK ITEMS PDF created with pdfFactory Pro trial version www.pdffactory.com... -
Page 45: Way Valve
Is there any gas leakage at flare nut connections? Has the heat insulation been carried out at flare nut connection? Is the indoor/outdoor connecting cable being fixed to terminal board firmly? Is the indoor/outdoor connecting cable being clamped firmly? Is the drainage OK? (Refer to “Check the drainage”... - Page 46 3-way Valve (Liquid Side) 3-way Valve (Gas Side) Works Shaft Position Service Port Shaft Position Service Shipping Close Closed Closed Closed (With valve cap) (With cap) (With valve cap) (With Evacuation Closed Open Closed Open (Installation and (Clockwise) (Connected manifold (Clockwise) (Push Re-installation)
- Page 47 3-way Valve (Liquid Side) 3-way Valve (Gas Side) Pressure check Open Open Open Open (Servicing) (Counter-Clockwise) (Connected manifold (Counter-Clockwise) (Connected manifold gauge) gauge) Gas releasing Open Open Open Open (Servicing) (Counter-Clockwise) (Connected (Counter-Clockwise) (Connected manifold manifold gauge) gauge) 11.1. Evacuation of Installation When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure.
- Page 48 Service port cap Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that prevents the gas leakage from the refrigeration cycle Procedure: 1. Connect a charging hose with a push pin to the Low and High sides of a charging set and the service ports of a 3-way valve.
- Page 49 Caution If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa) in step (3) above, take the following measures: If the leaks stop when the piping connections are tightened further, continue working from step (3). If the leaks do not stop when the connections are retightened, repair the location of the leak.
- Page 50 set to the service port of the 3-way valve. - Connect the charge hose with the push pin to the Gas side service port. 4. Air purging of the charge hose. - Open the low-pressure valve on the charge set slightly to purge air from the charge hose.
- Page 51 Procedure: 1. Connect a charging hose with a push pin to the Low and High sides of a charging set and the service port of the 3-way valve. - Be sure to connect the end of the charging hose with the push pin to the service port.
- Page 52 BE SURE TO USE REFRIGERANT RECLAIMING EQUIPMENT WHILE DISCHARGING THE REFRIGERANT. - Purge the air from charge set’s centre hose. - Be sure to check for gas leakage. Caution If gauge needle does not move from 0 cmHg (0 MPA) to -76 cmHg (0.1 MPa) in step (3) above, take the following measures: If the leaks stop when the piping...
- Page 53 Procedure: 1. Confirm that both the 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. - Leave the valve on the charge set closed. - Connect the charge hose with the push-pin to the service port. - Confirm whether the pressure indicates more than 0.1 MPa (1 kg/cm 3.
- Page 54 Procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Turn on the vacuum pump to evacuate the unit. - Confirm that the gauge needle has moved toward -76 cmHg (- 0.1 MPa). - Apply the vacuum for approximately 1 hour (vacuum of 4 mmHg or less).
- Page 55 Procedure: 1. Connect the charge hose to the charging cylinder. - Connect the charge hose which was disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. - Open the valve at the bottom of the cylinder and use a screwdriver to press the check valve on the charge set to purge the air (be careful of the liquid refrigerant).
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Page 56: Servicing Information
- Use torque wrench to tighten the service port caps to a torque of 18 N.m. - Be sure to check for gas leakage. 12. Servicing Information (A) Disassembly of the parts (Indoor Unit) - Inspection points for the Indoor Electronic Controller 1. - Page 57 Fig. 3 3. Remove the Discharge Grille. Remove the Discharge Grille and then pull the Discharge Grille in a down and forward direction. 4. Remove the Indoor Fan Motor. Loosen the Fan Mounting Screw at the junction with Cross Flow Fan.
- Page 58 Fig. 6 Fig. 7 - Cross Flow Fan Removal Procedure. 1. (Refer to No. 4 of Indoor Fan Motor the removal procedure) Loosen the screw at the right side of the evaporator. 2. Pull the left side of the evaporator forward slightly and remove the cross Flow Fan.
- Page 59 Fig. 9 Fig. 10 (C) Remote Control Transmission Setting - Remote Control Reset When the batteries are inserted for the first time, or the batteries are replaced, all the indications will blink and the remote control might not work. If this happen, remove the back cover of the remote control and you will find a resetting terminal, and by shorting it with a minus screwdriver, it will return to normal.
- Page 60 prevent operating errors caused by using two remote controls, set up the remote control [B A] switch (SW1). The unit is set to A when it is shipped. - By adding a jumper wire to the remote control side and CUTTING J- RA, J-RB to the indoor printed circuit board, it is possible to select from 4 types of transmission codes including one at time of delivery condition (1).
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Page 61: Troubleshooting Guide
Remote Control Indoor printed circuit board Note J - B J - RA J - RB Switch SW B —— SHORT SHORT At product delivery —— SHORT OPEN Jumper wire OPEN SHORT Jumper wire OPEN OPEN 13. Troubleshooting Guide 13.1. Refrigeration cycle system In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. - Page 62 13.1.1. Relationship between the condition of the air conditioner and pressure and electric current PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 63 Cooling Mode Heating Mode Condition of the conditoner Low Pressure High Electric Low Pressure High Electric Pressure current Pressure current during during operation operation Insufficient refrigerant (gas leakage) Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient...
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Page 64: Technical Data
Nature of fault Symptom Electric current during operation becomes approximately 20% lower than the normal value. Insufficient compressing of a The discharge tube of the compressor becomes abnormally hot (normally 70 to 90°C). compressor The difference between high pressure and low pressure becomes almost zero. Electric current reaches a high level abnormally, and the value exceeds the limit of an ammeter. - Page 65 Cooling Outdoor Temp. (°C) Indoor Wet Bulb Temp. 17.0°C 7.74 6.91 2.43 7.36 6.77 2.62 6.89 6.30 2.80 6.24 5.43 3.02 19.0°C 8.00 2.65 19.5°C 8.60 5.98 2.46 8.16 5.67 2.65 7.60 5.64 2.84 6.96 5.42 3.05 22.0°C 9.61 5.62 2.50 9.04 4.99...
- Page 66 PDF created with pdfFactory Pro trial version www.pdffactory.com...
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Page 67: Exploded View
15. Exploded View PDF created with pdfFactory Pro trial version www.pdffactory.com... -
Page 68: Replacement Parts List
16. Replacement Parts List <Model: CS-A281KR> PDF created with pdfFactory Pro trial version www.pdffactory.com... - Page 69 DESCRIPTION & NAME CS-280KR REMARKS CHASSIS COMPLETE CWD5239970C FAN MOTOR CWA4301370 CROSS FLOW FAN COMPLETE CWD5707210C BEARING ASS’Y CWH4059660K SCREW (CROSS FLOW FAN) CWH4582660 EVAPORATOR CWB6305560 FLARE NUT (1/4”) CWT6002240 FLARE NUT (5/8”) CWT6002270 SENSOR HOLDER CWH5040130 BAND (EVAPORATOR - TUBE ASS’Y COMPLETE) CWH4620170 DISCHARGE GRILLE COMPLETE CWD5011920C...
- Page 70 DESCRIPTION & NAME CS-280KR REMARKS CAP (FRONT GRILLE COMPLETE) CWH5060060 PARTICULAR PLATE CWH4945610 RAIN COVER (HOLDER - EVAPORATOR TUBE ASS’Y CWH4631410 BAG COMPLETE (AIR PURIFYING FILTER) CWE4649570C REMOTE CONTROL COMPLETE ASS’Y CWA75C556 INSTALLATION PLATE CWH8010540 OPERATING INSTRUCTIONS CWF8036900 INSTALLATION INSTRUCTIONS CWF8039140 BAG COMPLETE - INSTALLATION SCREW CWH4649210...
- Page 71 18. Replacement Parts List <Model: CU-A281KR> PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 72 DESCRIPTION & NAME CS-280KR REMARKS CHASSIS ASS’Y CWH5244200AKA SOUND PROOF CWH5236060 FAN MOTOR BRACKET CWH5241830 SCREW - (FAN MOTOR BRACKET) XTT4D10CXW PARTICULAR PLATE - LEFT (HOLD - FAN MOTOR) CWH4934850 PARTICULAR PLATE - RIGHT (HOLD - FAN MOTOR) CWH4934860 FAN MOTOR CWA4301380 SCREW - FAN MOTOR XTT4D10CXW...
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Page 73: Electronic Parts List
DESCRIPTION & NAME CS-280KR REMARKS CONTROL BOARD COVER CWE4936960A HANDLE CWE4520120 RAIN COVER CWE4631880 SCREW XSD4+6BNS SCREW CWE4585520 SCREW CWE4580930 CABINET FRONT PLATE ASS’Y COMPLETE CWE5030940ACA WIRE NET CWE4537630 CABINET SIDE PLATE (LEFT) CWE5030720A CABINET REAR PLATE COMPLETE CWE5030820ACA CABINET FRONT PLATE ASS’Y CWE5030640K WIRE NET (REAR) CWE4537530A... - Page 74 SYMBOL DESCRIPTION & NAME PART NO. INTEGRATED CIRCUIT C4083-910 INTEGRATED CIRCUIT C4083-450 INTEGRATED CIRCUIT C4083-860 INTEGRATED CIRCUIT C4083-730 INTEGRATED CIRCUIT C4083-720 PHOTO COUPLER C4094-040 TRANSISTOR C4086-060T TRANSISTOR C4086-240T Q3, Q5 TRANSISTOR J4086-080T D1 ~ D4 DIODE E4060-020T ZENER DIODE C4082-100T ZNR1, ZNR2, ZNR3 C4084-150 RY-HOT...
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Page 75: Electronic Circuit Diagram
SYMBOL DESCRIPTION & NAME PART NO. INTEGRATED CIRCUIT A52C78414Y INTEGRATED CIRCUIT A52C094 INTEGRATED CIRCUIT A52C040 INTEGRATED CIRCUIT A52MPA2003C TRANSISTOR A55C1740STPQ TRANSISTOR A55DTC113ZST D1 ~ D6 DIODE A54MA165TA5 DB1, DB2 DIODE BRIDGE A54CS1VB20E ZENER DIODE A54D7.5EL1TB ZNR2 ~ ZNR4 A54C353 T1, T2 TRANSFORMER A40378 SURGE ABSORBER... - Page 76 How to use electronic circuit diagram PDF created with pdfFactory Pro trial version www.pdffactory.com...
- Page 77 TIMER TABLE Test mode Name Time (When test point Remarks Short-circuited) Sleep Mode Waiting 1 hr. 6 sec. Sleep Mode Operation 8 hrs. 48 sec. 1 hr. 1 min. Real Timer 10 min. 10 sec. 1 min. 1 sec. Time Delay Safety Control 2 min.
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Page 78: Remote Control
20.1. REMOTE CONTROL [MACC] Printed in Malaysia PDF created with pdfFactory Pro trial version www.pdffactory.com...