Related Manuals for Carrier 42NQ009N
Summary of Contents for Carrier 42NQ009N
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Page 1: Service Manual
FILE NO. SVM-10036-1 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE 42NQ009N / 38NY009N April, 2010... -
Page 2: Table Of Contents
FILE NO. SVM-10036 CONTENTS SPECIFICATIONS CONSTRUCTION VIEWS 2-1 Indoor Unit 2-2 Outdoor Unit WIRING DIAGRAM SPECIFICATION OF ELECTRICAL PARTS 4-1 Indoor Unit 4-2 Outdoor Unit REFRIGERATION CYCLE DIAGRAM CONTROL BLOCK DIAGRAM OPERATION DESCRIPTION Remote control 7-2 Outline of Air Conditioner Control 7-3 Description of Operation Mode 7-4 High-Temperature Limit Control 7-5 Low-Temperature Limit Control... - Page 3 FILE NO. SVM-10036 TROUBLESHOOTING CHART 9-1 Troubleshooting Procedure 9-2 Basic Check Items 9-3 Primary Judgement 9-4 Self-Diagnosis by Remote Control (Check Code) 9-5 Troubleshooting Flowcharts 9-6 Troubleshooting for Remote Control (Including The Indoor P.C. Board) 10. PARTS REPLACEMENT 10-1 Indoor Unit 10-2 Outdoor Unit 11.
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Page 4: Specifications
FILE NO. SVM-10036 1. SPECIFICATIONS MODEL 42NQ009N / 38NY009N ITEM Cooling Heating 220V 240V 220V 240V Capacity 2.73 2.73 2.92 2.94 Phase 1∅ 220 − 240 Power source Power consumption 0.84 0.86 0.80 0.82 Power factor Running Indoor 0.15 current Outdoor 3.73... - Page 5 FILE NO. SVM-10036 Note : 1 • Capacity is based on the following temperature conditions. JIS C9612 Condition Temperature Cooling Heating (DB) 27°C 20°C Indoor unit inlet air temperature (WB) 19°C 15°C (DB) 35°C 7°C Outdoor unit inlet air temperature (WB) 24°C 6°C...
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Page 6: Construction Views
FILE NO. SVM-10036 2. CONSTRUCTION VIEWS 2-1. Indoor Unit (Flare 9.52) Ø Wireless remote control – 5 –... -
Page 7: Outdoor Unit
FILE NO. SVM-10036 2-2. Outdoor Unit Ø6 hole R5.5 Ø6 hole Ø11x14 hole A detail Drawing (Back leg) Ø 11 x 14 Hole Ø 25 Drain outlet B Detail Drawing (Front leg) (For 8 - 10 anchor bolt) Ø Ø FAN-GUARD Ø... -
Page 8: Wiring Diagram
FILE NO. SVM-10036 3. WIRING DIAGRAM LOUVER INFRARED RAYS RECEIVE 73 C x2 AND INDICATION PARTS MOTOR THERMAL FUSE CN25 CN14 2 CN04 CN07 SG01 Micro VARISTOR DC5V Voltage Power Regulator Module DC12V GRN & YEL T6.3A 250VAC CN31 SINGLE PHASE R319 220-240V 50/60Hz RY01... -
Page 9: Specification Of Electrical Parts
FILE NO. SVM-10036 4. SPECIFICATION OF ELECTRICAL PARTS 4-1. Indoor Unit Parts name Type Specifications Fan motor (for indoor) AFN-220-20-4D AC Motor with 145 °C thermo fuse ° Thermo sensor (TA-sensor) 10k at 25 C Micro power module (M01) GPS-9W-AA Microcontroller unit (IC30) TMP87CM40AFG-6P69 Heat exchanger sensor... -
Page 10: Refrigeration Cycle Diagram
FILE NO. SVM-10036 5. REFRIGERATION CYCLE DIAGRAM Indoor unit Heat exchanger Cooling 0.39m 0.49m Heating (Connecting pipe) (Connecting pipe) ∅9.52 ∅6.35 Cross flow fan O.D.:9.52mm O.D.:6.35mm Packed valve Packed valve (∅9.52) (∅6.35) Heating Cooling 4-way valve Capillary tube ∅1.5x1200 Heating Cooling Compressor PA108X1C-4FZDN Capillary tube ∅1.5x1000... -
Page 11: Control Block Diagram
FILE NO. SVM-10036 6. CONTROL BLOCK DIAGRAM M.C.U. Main Unit Control Panel Operation Heat Exchange sensor Functions Display Timer • Louver Control Thermo. Sensor Display • 3-minutes Delay at Restart Current Sensor for Compressor (Compressor Current) Infrared Rays Signal Reciver •... -
Page 12: Operation Description
FILE NO. SVM-10036 7. OPERATION DESCRIPTION 7-1. Remote control 7-1-1. Remote control and its functions Infrared signal emitter Start/Stop button ( Mode select button ( Temperature button ( Fan speed button ( PRESET Swing louver button ( Set louver button ( MODE On timer button ( Off timer button (... - Page 13 FILE NO. SVM-10036 5. ECO OPERATION To automatically control room to save energy (except in DRY and FAN ONLY mode) Press : Start and stop the operation. Note: Cooling operation; the set temperature will increase automatically 1 degree/ hour for 2 hours (maximum 2 degrees increase). For heating operation the set temperature will decrease.
- Page 14 FILE NO. SVM-10036 9. AUTO RESTART OPERATION To automatically restart the conditioner after the power failure (Power of the unit must be on.) Setting 1. Press and hold the RESET button on the indoor unit for 3 seconds to set the operation.
- Page 15 FILE NO. SVM-10036 7-1-3. Name and Functions of Indications on Remote Controller [Display] All indications, except for the clock time indicator, are displayed by pressing the button. Transmission mark Hi-POWER indicator This transmission mark indicates when the Indicates when the Hi-POWER operation starts. remote controller transmits signals to the indoor Press the Hi-POWER button to start and press it unit.
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Page 16: Outline Of Air Conditioner Control
Table 7-2-1 Indoor fan and air flow rate FAN TAP Cooling OPERATION Fan only MODE Heat 1300 1250 Fan speed (rpm) 1350 1180 1140 1000 700 500 42NQ009N Air flow volume (m - 15 -... -
Page 17: Description Of Operation Mode
FILE NO. SVM-10036 7-3-2. Cooling operation 7-3. Description of Operation Mode ([MODE] button on the remote control is set (1) When turning on the breaker, the operation lamp to the cooling operation.) blinks. This means that the power is on (or the (1) The compressor, 4-way valve, outdoor fan and power supply is cut off.) operation display lamp are controlled as shown in... - Page 18 FILE NO. SVM-10036 7-3-3. Dry operation 7-3-4. Heating operation ([MODE] button on the remote control is set ([MODE] button on the remote control is set to the dry operation.) to the heating operation.) (1) The compressor, 4-way valve, outdoor fan and operation display lamp are controlled as shown in (1) The compressor, 4-way valve, outdoor fan and Fig.
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Page 19: Cooling Operation
FILE NO. SVM-10036 (3) The indoor heat exchanger restricts revolving 7-3-5. Automatic operation speed of the fan motor to prevent a cold draft. The ([MODE] button on the remote control is set upper limit of the revolving speed is shown in to the automatic operation.) Fig. -
Page 20: High-Temperature Limit Control
FILE NO. SVM-10036 7-4. High-Temperature Limit Control 7-6. Defrost Operation The microcontroller detects the indoor heat exchanger temperature to pre ent pressure of a refr iger ating cycle ing the heating oper ation, the outdoor heat from increasing e xcessiv xchanger temper ature goes do wn and sometimes it is... - Page 21 FILE NO. SVM-10036 minutes minutes minutes minutes Max 6 minutes 10 minutes 1 cycle Fig. 7-6-2 <In case of C> (1) The heating operation is performed for at least 90 minutes. (2) The defrost operating time is 10 minutes. 7-6-3. Ending condition at defrost operation (1) When the compressor current becomes 8.0A or more during defrost operation, the defrost operation stops and the heating operation restarts.
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Page 22: Current Limit Control
FILE NO. SVM-10036 7-7. Current Limit Control The microcontroller detects the input current so as to prevent it exceeds a specified value by means of controlling the outdoor fan control as described in (1) and (2). (1) Current limit control (Cooling operation) Control is performed as shown below by detecting the compressor operating current with a current sensor (C.T). -
Page 23: Hi Power Mode
FILE NO. SVM-10036 7-8. Hi POWER Mode 7-9. ECO Operation ([Hi POWER] button on the remote Cooling operation control is pressed.) · The preset temperature will increase 1ºC after the ECO mode has operated for 1 hour and the temperature When [Hi POWER] button is pressed while the indoor will increase another 1ºC after the ECO mode has unit is in Auto, Cooling or Heating operation, Hi... -
Page 24: Auto Restart Function
FILE NO. SVM-10036 7-10. Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored. - Page 25 FILE NO. SVM-10036 7-10-2. How to Cancel the Auto Restart Function To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. •...
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Page 26: Installation Procedure
FILE NO. SVM-10036 8. INSTALLATION PROCEDURE 8-1. Safety Cautions For general public use Power supply cord of parts of appliance for Outdoor use shall be at least polychloroprene sheathed flexible cord (design H07 RN-F), or cord designation 245 IEC66. CAUTION New Refrigerant Air conditioner Installation •... - Page 27 Also, make sure the equipment is properly earthed. • Appliance shall be installed in accordance with national wiring regulations. If you detect any damage, do not install the unit. Contact your Carrier dealer immediately. CAUTION • Exposure of unit to water or other moisture before installation could result in electric shock.
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Page 28: Installation Diagram Of Indoor And Outdoor Units
FILE NO. SVM-10036 8-2. Installation Diagram of Indoor and Outdoor Units For the rear left and left piping Hook Installation plate Wall Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation. Do not allow the drain hose to get slack. Cut the piping Shield pipe hole sloped... -
Page 29: Installation
FILE NO. SVM-10036 8-3. Installation 8-3-1. Optional installation parts Part Parts name Q'ty Code Refrigerant piping Liquid side : ∅6.35 mm : ∅9.52 mm Gas side each Pipe insulating material (polyethylene foam, 6 mm thick) Putty, PVC tapes each <Fixing bolt arrangement of outdoor unit> 108 mm 125 mm 28 mm... - Page 30 FILE NO. SVM-10036 8-3-2. Accessory and installation parts Part Part Part Part name (Q’ty) Part name (Q’ty) Part name (Q’ty) Mounting screw ∅4 x 25 s x 6 Installation plate x 1 Remote control holder x 1 Active Carbon Cleaning filter Pan head wood screw Wireless remote control x 1 ∅3.1 x 16 s x 2...
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Page 31: Indoor Unit
FILE NO. SVM-10036 8-4. Indoor Unit 8-4-2. Cutting a hole and mounting installation plate 8-4-1. Installation place <Cutting a hole> • A place which provides the spaces around the When installing the refrigerant pipes from the rear. indoor unit as shown in the above diagram. •... - Page 32 FILE NO. SVM-10036 8-4-3. Installation/Servicing tools <Changes in the product and components> In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch) •...
- Page 33 • Ensure all wiring is used within its electrical rating. Projection 15 mm or less 5 mm dia. hole 7 Mounting screw ∅4 x 25s s s s s Model 42NQ009N 50 Hz, 220 − 240 V Single phase Power source Clip anchor (local parts) Maximum 7.5A running current Fig.
- Page 34 FILE NO. SVM-10036 <How to install the air inlet grille on the indoor unit> <How to connect the connecting cable> • When attaching the air inlet grille, the contrary of Wiring of the connecting cable can be carried out without removing the front panel. the removed operation is performed.
- Page 35 FILE NO. SVM-10036 8-4-5. Piping and drain hose installation How to fix the drains cap 1) Insert hexagonal wrench (4 mm) in a center <Piping and drain hose forming> head. * Since dewing results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.) 4 mm Rear right...
- Page 36 FILE NO. SVM-10036 <Left-hand connection with piping> 8-4-6. Indoor unit fixing Bend the connecting pipe so that it is laid within 43 mm 1. Pass the pipe through the hole in the wall, and hook above the wall surface. If the connecting pipe is laid the indoor unit on the installation plate at the upper exceeding 43 mm above the wall surface, the indoor hooks.
- Page 37 FILE NO. SVM-10036 8-4-7. Wiring Connection NOTE Use stranded wire only. Wire type : H07RN-F or more Air inlet grille Front panel CAUTION For the air conditioner with the power supply cord • If the power supply cord is damaged, it must be replaced bythe manufacturer, the service agency, or another similarly qualified person in order to <How to connect the power cord>...
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Page 38: Outdoor Unit
FILE NO. SVM-10036 8-4-8. Drainage 8-5. Outdoor Unit 8-5-1. Installation place 1. Run the drain hose sloped downwards. • A place which provides the spaces around the NOTE outdoor unit as shown in the left diagram. • Hole should be made at a slight downward slant on •... - Page 39 FILE NO. SVM-10036 8-5-2. Refrigerant piping connection (Unit : N·m) Outer dia. 1. Cut the pipe with a pipe cutter. Tightening torque of copper pipe ∅6.35 16 to 18 (1.6 to 1.8 kgf·m) Roughness Warp Obliquity 90° ∅9.52 30 to 42 (3.0 to 4.2 kgf·m) ∅12.7 50 to 62 (5.0 to 6.2 kgf·m) Fig.
- Page 40 FILE NO. SVM-10036 8-5-3. Evacuating <Packed valve handling precautions> • Open the valve stem all the way out; but do not try After the piping has been connected to the indoor unit, you can perform the air purge together at once. to open it beyond the stopper.
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Page 41: How To Set Remote Control Selector Switch
FILE NO. SVM-10036 8-6. How to Set Remote Control Selector 8-5-4. Wiring connection Switch 1. Remove the valve cover from the outdoor unit. 2. Connect the connecting cable to the terminal as When two indoor units ae installed in seperated rooms, identified with their respective matched numbers on there is no need to change the selector switch. -
Page 42: Others
FILE NO. SVM-10036 8-7. Others 8-7-3. Auto restart setting 8-7-1. Gas leak test This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure. Information Valve cover Information The product was shipped with Auto Restart function Valve stem cap... -
Page 43: Troubleshooting Chart
FILE NO. SVM-10036 9. TROUBLESHOOTING CHART 9-1. leshooting Pr ocedure 9-2-2. Incorrect cab le connection between Indoor and outdoor units Follow the details of 9-2. Basic Check Items. The indoor unit is connected to the outdoor unit with If there is no troub le corresponding to 9-2 , chec 5 cab... -
Page 44: Primary Judgement
FILE NO. SVM-10036 9-3. Primary Judgement 9-3-2. Failure diagnosis The indoor unit diagnoses the operation condition and 9-3-1. Role of indoor unit controller indicates the information of the self-diagnosis with the The indoor unit controller receives the operation lamps on the display panel of the indoor unit. commands from the remote control and executes them. -
Page 45: Self-Diagnosis By Remote Control (Check Code)
FILE NO. SVM-10036 9-4. Self-Diagnosis by Remote Controller (Check Code) 1. If the lamps are indicated as shown B to E in Table 9-3-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condi- tion and indicates the information of the self-diagnosis on the display of the remote controller with the check codes. - Page 46 FILE NO. SVM-10036 Table 9-4-1 Block level Diagnosis function Judgement and action Check Check Block Symptom Conditioner Condition code code status Indoor Thermo. sensor Indicated Continued 1.Check thermo sensor. P.C. board short/break. operation. when detected 2.If it is OK, check abnormal P.C.
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Page 47: Troubleshooting Flowcharts
FILE NO. SVM-10036 9-5. Troubleshooting Flowcharts 9-5-1. Power can not be turned on (No operation at all) <Preliminary checks> (1) Is the supply voltage normal? (2) Is the connection to the AC output OK.? Operation Check Items Main cause Shut off the power supply from AC outlet once and Countermeasure turn it on after 5 seconds. - Page 48 FILE NO. SVM-10036 9-5-2. Power can not be turned on after replacing indoor P.C. board <Checking Procedure> Connect the AC Power supply Return the wiring of the Does the OPERATION Is it wired as shown power relay is returned to lamp blink? in Figure below? the normal procedure.
- Page 49 FILE NO. SVM-10036 9-5-3. Outdoor unit does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by pushing See "Power can not be turned on".
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Page 50: Only Compressor Does Not Operate
FILE NO. SVM-10036 9-5-4. Only compressor does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by pushing the [ ] button See "Power can not be turned on". - Page 51 FILE NO. SVM-10036 9-5-5. Only outdoor fan does not operate Shut off the power supply from AC outlet once and turn it on after 5 seconds. Does the OPERATION lamp blink? See "Power can not be turned on". Does the power turn on by See "Power can not be turned on".
- Page 52 FILE NO. SVM-10036 9-5-6. Only 4-Way valve does not operate (During heating operation) <Check procedure> Shut off the power supply once. Turn the power supply. Does the fan stop in Replace the P.C. board. Control P.C. board is defective. no operating status? Start the operation with low fan setting in cool operation.
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Page 53: Troubleshooting For Remote Control (Including The Indoor P.c. Board)
FILE NO. SVM-10036 9-6. Troubleshooting for Remote Control (Including the Indoor P.C. Board) There is no beep from the indoor unit Push the [ ] button. The OPERATION lamp of the air conditioner main unit does not light Does the transmission indicator blink? Reset the remote control by take off batteries... - Page 54 FILE NO. SVM-10036 9-6-1 How to check the P.C. board (2) Inspection procedures (1) Operating precautions 1) When a P.C. board is judged to be defective, check for disconnection, burning, or discolora- 1) When removing the front panel or the P.C. board, tion of the copper foil pattern or this P.C.
- Page 55 FILE NO. SVM-10036 (3) Checking procedure Table 9-6-1 Procedure Check Point (Symptom) Causes Shut off the power supply and 1. Is the fuse blown? 1. Application of shock voltage. remove the P.C. board assembly Overload by short-circuit of the from the electronic parts base. parts.
- Page 56 FILE NO. SVM-10036 Table 9-6-2 Approximate resistance value of thermo sensor (kΩ) Temperature 0°C 20°C 30°C 25°C 10°C Resistance value 33.8 20.35 12.59 10.00 7.99 9-6-2. How to shorten time of restart delay timer Press [SET] button while pressing [CHK] button with a tip of a pencil.
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Page 57: Part Replacement
FILE NO. SVM-10036 10. PART REPLACEMENT 10-1. Indoor Unit Part name Procedures Remarks Front panel How to remove the front panel 1) Stop the operation of the air conditioner and turn off its main power supply. 2) Pull the air inlet grille toward you to open it and remove the air inlet grille. - Page 58 FILE NO. SVM-10036 Part name Procedures Remarks Heat exchanger 1) Remove the front panel, electrical part and the horizontal louver following procedure 3. 2) Remove the pipe holder at the rear side of main unit. 3) Remove the 2 screws on the heat exchanger at the base bearing.
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Page 59: Outdoor Unit
FILE NO. SVM-10036 10-2. Outdoor Unit Part name Procedures Remarks Cord clamp 2-Screws Ø4 x 16L Common 1) Stop the operation of air-conditioner, and procedure disconnect the power cord from the AC supply. 2) Remove packed valve cover and Electric parts cover. -
Page 60: Exploded Views And Parts List
FILE NO. SVM-10036 11. EXPLODED VIEWS AND PARTS LIST 11-1. Indoor Unit (E-Parts Assy) Location Part Location Part Description Description 43T60378 TERMINAL 43T60077 FUSE, TEMPERATURE, 73C 43T60394 TERMINAL 43T62003 CORD CLAMP (Made in Thailand) 43T69371 SENSOR;HEAT EXCHANGER 43T69844 ASM-PCB-SERV 43T50314 SENSOR;THERMOSTAT 43T60379 TERMINAL... -
Page 61: Indoor Unit
FILE NO. SVM-10036-1 11-2. Indoor Unit Location Part Location Part Description Description 43T00479 FRONT PANEL ASSY 43T39323 BEARING BASE 43T09436 GRILLE OF AIR INLET 43T20323 ASSY CROSS FLOW FAN 43T03358 BACK BODY ASSY 43T39324 MOTOR BAND (LEFT) 43T80317 AIR-FILTER 43T39321 MOTOR BAND(RIGHT) 43T09392 HORIZONTAL LOUVER... -
Page 62: Outdoor Unit
FILE NO. SVM-10036 11-3. Outdoor Unit Location Location Part Part Description Description 43T42327 BASE PLATE ASSEMBLY 43T47001 NUT FLANGE (Made in Japan) (Made in Thailand) 43T19332 FAN GUARD 43T41379 COMPRESSOR (Made in China) 43T04301 PARTITION 43T49327 CUSHION,RUBBER 43T39333 MOTOR BASE CONNECTION PLATE 43T97001 43T39318 MOTOR BASE...