INVENTOR EVI-18 Service Manual

Air conditioner systems

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Owner's manual (27 pages)

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Summary of Contents for INVENTOR EVI-18

Page 2: Table Of Contents
..........1 Summary and features Part 1 Safety Precautions ..............2 Part 2 Specifications ................3 2.1 Unit Specifications ..................3 2.2 Operation Characteristic Curve ..............11 2.3 Capacity Variation Ratio AccordingtoTemperature........11 2.4 Operation Date ..................12 2.5 Noise criteria curve tables for both models ..........13 Part 3 Construction Views ..............14 3.1 Indoor Unit...
Page 3 Part 7 Installation Manual ..............34 7.1 Tools Required for Installation ..............34 7.2 Installation Position Selection ..............34 7.3 Installation of Indoor Unit ................34 7.4 Installation of Outdoor Unit ..............38 7.5 Test Operation ..................39 Part 8 Exploded Views And Parts List ...........40 8.1 Exploded View ..................40 8.2 Parts Listt...
Page 4: Summary And Features
Summary and features Summary and features A5 Panel Indoor Unit EVI18 EVI18 EVO18 ON/OFF EVO18 A6 Panel EVO18 EVO18 EVO18 EVI24 EVI24 EVO24 ON/OFF EVO24 A9 Panel EVO24 EVO24 EVO24 ON/OFF Outdoor Unit EVI18 EVO18 EVO18 EVI24 EVO24 EVO24 AUTO Remote control window HEALTH X-FAN...
Page 5: Part 1 Safety Precautions
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Page 6: Part 2 Specifications
Specifications Specifications 2.1 Unit Specifications Models: EVI18, EVI18,EVO24, EVO24 EVO18 EVI18 Model EVI18 EVO18 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min Max) 5300(1050~6500) 5300(1050~6500) Heating Capacity (Min Max) 5700(1000~7000) Cooling Power Input (Min Max) 1650(360~2650) 1600(360~2500) Heating Power Input (Min Max)
Page 7 Specifications Model of Outdoor Unit EVI18 EVO18 Compressor China Resources (Shenyang) China Resources (Shenyang) Manufacturer/Trademark Sanyo CO.,LTD/Sanyo Sanyo CO.,LTD/Sanyo Compressor Model C-6RZ146H1A C-6RZ146H1A Compressor Oil FV50S FV50S Compressor Type Rotary Rotary L.R.A. Compressor RLA 8.40 Compressor Power Input 1640 1640 Overload Protector 1NT11L-3979 1NT11L-3979...
Page 8 Specifications Models: EVO18 EVO18 EVO18 Model EVO18 EVO18 EVO18 Product Code CB14600320 CB14600570 CB14600580 220-240 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min Max) 5300(1050~6500) Heating Capacity (Min Max) 5800(1000~7100) Cooling Power Input (Min Max) 1600(360~2500) Heating Power Input (Min Max) 1600(350~2600)
Page 9 Specifications Model of Outdoor Unit EVO18 Compressor China Resources (Shenyang) Sanyo CO.,LTD/Sanyo Manufacturer/Trademark Compressor Model C-6RZ146H1A Compressor Oil FV50S Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input 1640 Overload Protector 1NT11L-3979 Throttling Method Capillary Operation temp 16 30 Ambient temp (cooling) 10 48 Ambient temp (heating) -15 24...
Page 10 Specifications Models: EVI24,EVI24, EVO24,EVO24 EVI24 EVO24 Model (Product Code) EVO24 EVI24 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min Max) 6450(1500~7000) 6450(1500~7000) Heating Capacity (Min Max) 7000(1200~7800) Cooling Power Input (Min Max) 1985(350~2500) 1985(350~2500) Heating Power Input (Min Max)
Page 11 Specifications Model of Outdoor Unit EVI24 EVO24 Com pres s or China Res ources (Shenyang) China Res ources (Shenyang) Manufacturer/Tradem ark Sanyo CO.,LTD Sanyo CO.,LTD Com pres s or Model C-6RZ146H1A C-6RZ146H1A Com pres s or Oil FV50S FV50S Com pres s or Type Rotary Rotary L.R.A.
Page 12 Specifications Models :EVI24 EVO24 EVO24 Model EVO24 EVO24 EVO24 Product Code CB14600210 CB14600600 CB14600590 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity (Min 6450(1400~7000) Heating Capacity (Min 6700(1200~8000) Cooling Power Input (Min 2000(350~2600) Heating Power Input (Min 1850(350~2700) Cooling Power Current 8.87...
Page 13 Specifications Model of Outdoor Unit EVO24 Compressor China Resources (Shenyang) Sanyo CO.,LTD Manufacturer/Trademark Compressor Model C-6RZ146H1A Compressor Oil FV50S Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input 1640 Overload Protector 1NT11L-3979 Throttling Method Electron expansion valve Operation temp 16 30 Ambient temp (cooling) 10 48 Ambient temp (heating)
Page 14: Operation Characteristic Curve
Specifications 2.2 Operation Characteristic Curve <Cooling> <Heating> 220V 220V • Conditions Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C/WB24˚C Indoor air flow : High Pipe length : 5m 230V 230V 240V • Conditions 240V Indoor : DB20˚C/WB15˚C Outdoor : DB7˚C/WB6˚C Indoor air flow : High Pipe length : 5m Compressor speed (rps)
Page 15: Operation Date
Specifications 2.4 Operation Date (1)Models: EVI18 EVI18 5A, EVO18 EVO18 EVI24 EVI24 EVO24 EVO24 Cooling Temperature condition Heat exchanger pipe Standard Compresso (°C) temp. pressure Model Indoor fan Outdoor fan r revolution P (MPa) name mode mode (rps) Indoor Outdoor T1 (°C) T2 (°C) 0.9 to 1.1...
Page 16: Noise Criteria Curve Tables For Both Models
Specifications 2.5 Noise criteria curve tables for both models Indoor side noise when blowing Heating Cooling High Middle Indoor fan motor rotating speed Compressor frequency(Hz)
Page 17: Part 3 Construction Views
Constrction views 3. Construction Views 3.1 Indoor Unit ON/OFF Over 15mm Over Over 15mm 15mm 18K Wall Mounting Frame 24K Wall Mounting Frame 1008 φ55 φ55 φ55 φ55 W( ) H( ) D( ) Model 1008...
Page 18: Outdoor Unit
Constrction views 3.2 Outdoor Unit Bolt Wrench...
Page 19: Part 4 Refrigerant System Diagram
Refrigerant System Diagram 4. Refrigerant System Diagram 4.1 18K (1)Cooling Only Models INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Suction Accumlator COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE Strainer Capillary Strainer COOLING (2)Cooling &...
Page 20 Refrigerant System Diagram 4.2 24K (1)Cooling Only Models INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Accumlator Suction COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE Strainer Expansion valve Strainer COOLING (2)Cooling & Heating Models INDOOR UNIT OUTDOOR UNIT GAS SIDE...
Page 21: Part 5 Schematic Diagram
Schematic Diagram 5. Schematic Diagram 5.1 Electrical Date Indoor Unit 6\PERO &RORU V\PERO 6\PERO &RORU V\PERO %/8( %52:1 <( <(//2: %/8( %/$&. <(*1 <(//2: *5((1 3527(&7,9( ($57+ Outdoor Unit 6\PERO 3DUWV QDPH 6\PERO &RORU V\PERO 6\PERO &RORU V\PERO & &%% %52:1 :+,7( &...
Page 22: Schematic Diagram
Schematic Diagram Outdoor Unit Model: EVI18 EVO24 WARNING COMPRESSOR Please don't touch any terminal when the 6YEGN voltage of terminal P(DC+) and N(DC-) at R(M,V) COMP AP1 is higher than 30V to prevent the risk S(W,X) C(T,U) OUTROOM EXHAUST OUTTUBE of electrical shock! TEM.SENSOR TEM.SENSOR...
Page 23: Printed Circuit Board
6FKHPDWLF 'LDJUDP 3ULQWHG &LUFXLW %RDUG ,QGRRU 8QLW &RQWURO 3&% 723 9,(: neutral line connects fan capacitor the terminal of copper pin PG motor terminal up&down swing health relay K3 terminal auxiliary relay K1, K2 protective tube piezoresistor jumper cap PG feedback terminal ambient temp-...
Page 24 Schematic Diagram BOTTOM VIEW...
Page 25 Schematic Diagram...
Page 26 Schematic Diagram R151 R152 C220 R201 R202 R162 R200 R153 R126 C115 R207 R206 R205 C130 R161 R165 R192 R113 R150 R170 C9 5 R138 C101 C6 7 C8 6 C145 R234 R2 37 R2 32 R233 R235 R236 R240 R238 R239 R241...
Page 27 Schematic Diagram TOP VIEW Interface name Instruction The corresponding three wires are: yellow-COMP-U, Interface of compressor blue-COMP-V, red-COMP-W Overload protector The corresponding two-core white wire connects the compressor overload protector SAT Tube temperature (20k @25oC); outdoor ambient temperature(15k @25oC), discharge Temperature sensor temperature(50 k @25oC) It’s used for connecting the 5-core electron expansion...
Page 28: Function And Control
Function and Control 6. Function and Control 6.1 Remote Controller Description ON/OFF Press this button to start or stop operation. MODE AUTO Press it to select operation mode (AUTO/COOL/DRY/FAN/HEAT). HEALTH X-FAN HUMIDITY FILTER Press it to decrease temperature setting TURBO HOUR ON/OFF Press it to increase temperature setting.
Page 29 Function and Control ON/OFF : Press this button to start the unit operation .Press this button again to stop the unit operation. MODE : Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL, DRY, FAN,and HEAT *, as the following: HAET AUTO...
Page 30 Function and Control ● Press + button and button at the same time at unit OFF to switch between simple swing and static swing, blinking 2 seconds. In static swing condition, press button, the swing angle of left & right louver changes as below: ●...
Page 31: Changing Batteries And Notices
Function and Control 6.2 Changing batteries and notices Remove the battery cover plate from the rear of the remote controller.(As shown in the figure) Take out the old batteries. Insert two new AAA1.5V dry batteries, and pay attention to the polarity. Replace the battery cover plate.
Page 32: Description Of Each Control Operation
Function and Control 6.5 Description of Each Control Operation Indoor Unit Temperature Parameter Room setting temperature (Tpreset) Room ambient temperature (Tamb.) (temperature sensor :15K, partial pressure resistance:15K) Surface temperature of copper pipe for indoor heat exchanger (T (temperature sensor: 20K, partial pressure resistance: 20K) indoor tube) Basic Functions of System (1) Cooling Mode...
Page 33 Function and Control When multiple malfunctions occurred simultaneously, malfunction protection codes will be displayed in cycle. 3.Other Control Target (1) Up&down swing function: the mode for swing motor is MP28EA After energization, up & down swing motor will firstly let the horizontal louver anticlockwise rotate to position 0 to close air outlet.
Page 34: Outdoor Units
Function and Control before power failure, will memorize the time setting and re-calculate the time after power recovery. If there is timer function in the last remote controller command but setting time has reached, the system will act as timer on/off setting before power failure. After power failure, the system memorizes the operation states before power failure without timer action.
Page 35 Function and Control (4) Heating Mode 1. Conditions and processes of heating operations: (Tindoor ambient is the actual detection temperature of indoor environment thermo-bulb, ¨Theating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating operations) (1) If the compressor is stop, and [(Tindoor ambient –¨Theating indoor ambient temperature compensation) –Tpreset] ” 0.5 , start the machine to enter into heating operations for heating;...
Page 36 Function and Control heating mode, the malfunction and malfunction times will zero clearing. (If the malfunction can not resume, the shifting mode can clear malfunction.) (11) Compressor discharge temperature protection 1. If ”Tdischarge, the unit will stop; if Tdischarge , and compressor has stopped for 3min, the unit will resume running; 2.
Page 37: Part 7 Installation Manual
Installation Manual 7. Installation Manual 7.2 Installation Position Selection Important Notices (1)The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. (2)Select a position where the condensing water can be easily 1.
Page 38 Installation Manual Recommended mounting plate retention spots and Burr removal dimensions 1.Completely remove all burrs from the cut cross section of 18K: pipe/tube. Wall Wall Mark on the middle of it Gradienter 2 . Put the end of the copper tube/pipe in a downward direc- Space Space to the...
Page 39 Installation Manual 3.2 Connection of piping 5. Insert the connecting cable fully into the terminal block and 1.Align the center of the pipes and sufficiently tighten the flare nut secure it tightly with screws. by hand. 6. Tightening torque: 1.2 N•m (0.12 kgf•m). 7.
Page 40 Installation Manual How to replace the drain plug and drain hose In the case of bending or curing refrigerant pipes, keep the fol- • How to remove the drain cap Clamp drain cap with needle-nose pliers, and pull out. lowing precautions in mind. Abnormal sound may be generated if improper work is conducted.
Page 41: Installation Of Outdoor Unit
Installation Manual Mounting plate Drain-water hole Marking Bottom frame Drain plug Drain connecter Hose (available commercially, inner dia. 16mm) 2) Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate. Remove the Valve cover from the unit by loosening the screw. 3)While pressing the indoor unit onto the wall, hook it at the lower Align the center of the pipings and sufficiently tighten the flare part on the installation plate.
Page 42: Test Operation
Installation Manual 1. Connect the charge hose from the manifold valve to the service port of the gas side packed valve. 1) Strip the insulation from the wire (20mm). 2) Connect the connection wires between the indoor and outdoor 2. Connect the charge hose to the port of the vacuum pump. 3.
Page 43: Part 8 Exploded Views And Parts List
Exploded Views and Parts list 8. Exploded Views and Parts List 8.1 Exploded View Indoor Unit (1) 18K...
Page 44 Exploded Views and Parts list (2) 24K...
Page 45 Exploded Views and Parts list Outdoor Unit (1) 18K Cooling Only 29 28 27 26 25...
Page 46 Exploded Views and Parts list (2)18K Heat Pump 35 34 29 28 27 26 25...
Page 47 Exploded Views and Parts list (3)24K Cooling Only 30 29 28 27 26...
Page 48 Exploded Views and Parts list (4) 24K Heat Pump 36 35 30 29 28 27 26...
Page 49: Parts Listt
Exploded Views and Parts list 8.2 Parts List Indoor Unit (1) 18K Part Code Description EVO18 EVI18 EVO18 Product Code CB146N0090 CB146N0100 CB146N0320 Front Panel Assy 20012496 20012496 20012496 Filter Sub-Assy 11122104 11122104 11122104 Screw Cover 242520041 242520041 242520041 Front Case Assy 20012497 20012497 20012497...
Page 50 Exploded Views and Parts list Part Code Description EVI18 EVO18 EVO18 Product Code CB146N0650 CB146N0270 CB146N0570 Front Panel Assy 20012495S 20012495S 20012495S Filter Sub-Assy 11122104 11122104 11122104 Screw Cover 242520041 242520041 242520041 Front Case Assy 20012497 20012497 20012497 Guide Louver 10512140 10512140 10512140...
Page 51 Exploded Views and Parts list Part Code Description EVO18 Product Code CB146N0580 Front Panel Assy 20012627 Filter Sub-Assy 11122104 Screw Cover 242520041 Front Case Assy 20012497 Guide Louver 10512140 Air Louver 10512160 Helicoid tongue 26112232 Left Axile Bush 10512037 Rear Case assy 22202154 Rubber Plug (Water Tray) 76712012...
Page 52 Exploded Views and Parts list (2) 24K Part Code Description EVI 24 EVO24 EVO24 Product Code CB146N0150 CB146N0160 CB146N0210 Front Panel Assy 20012513 20012513 20012513 Filter Sub-Assy 11122091 11122091 11122091 Screw Cover 24252016 24252016 24252016 Front Case Assy 20012514 20012514 20012514 Air Louver 10512139...
Page 53 Exploded Views and Parts list Part Code Description EVO24 EVI24 EVO24 Product Code CB146N0640 CB146N0260 CB146N0600 Front Panel Assy 20012502S 20012502S 20012502S Filter Sub-Assy 11122091 11122091 11122091 Screw Cover 24252016 24252016 24252016 Front Case Assy 20012514 20012514 20012514 Air Louver 10512139 10512139 10512139...
Page 54 Exploded Views and Parts list Part Code Description EVO24 Product Code CB146N0590 Front Panel Assy 2001251301 Filter Sub-Assy 11122091 Screw Cover 24252016 Front Case Assy 20012514 Air Louver 10512139 Helicoid tongue 26112229 Left Axile Bush 10512037 Rear Case assy 22202157 Rubber Plug (Water Tray) 76712012 Ring of Bearing...
Page 55 Exploded Views and Parts list Outdoor Unit (1) 18K Cooling Only Part Code Description EVI18 Product Code CB146W0090 Fan Motor 1501506301 Electric box (fireproofing) 01413148 Terminal Board 42011113 Capacitor CBB61 33010010 Electric Box 20113008 Radiator 49010252 Main Board 30138385 Electric Box Cover Sub-Assy 02603217 Electric Box Assy 02603331...
Page 56 Exploded Views and Parts list (2) 18K Heat Pump Part Code Description EVO18 EVO18 Product Code CB146W0100 CB146W0320 Fan Motor 1501506301 1501506301 Electric box (fireproofing) 01413148 01413148 Terminal Board 42011113 42011113 Capacitor CBB61 33010010 33010010 Electric Box 20113008 20113008 Radiator 49010252 49010252 Main Board...
Page 57 Exploded Views and Parts list (3) 24K Cooling Only Part Code Description EVI24 Product Code CB146W0150 Fan Motor 1501506301 Electric box (fireproofing) 01413148 Terminal Board 42011113 Capacitor CBB61 33010010 Electric Box 20113008 Radiator 49010008 Main Board 30138386 Electric Box Cover Sub-Assy 02603217 Electric Box Assy 0260306618...
Page 58 Exploded Views and Parts list (4) 24K Heat Pump Part Code Description EVO24 EVO24 Product Code CB146W0160 CB146W0210 Fan Motor 1501506301 1501506301 Electric box (fireproofing) 01413148 01413148 Terminal Board 42011113 42011113 Capacitor CBB61 33010010 33010010 Electric Box 20113008 20113008 Radiator 49010008 49010008 Main Board...
Page 59: Part 9 Troubleshooting
Troubleshooting 9. Troubleshooting 9.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, m ake sure that the unit is de-energized and the plug is disconnected.
Page 60: Confirmation
Troubleshooting Discharging Position: 9.2 Confirmation (1)Confirmation of Power Supply Confirm that the power breaker operates(ON) normally; (2)Confirmation of Power Voltage Confirm that power voltage is AC 220-230-240 10%. If power voltage is not in this range, the unit may not operate normally.
Page 61 7URXEOHVKRRWLQJ Blinking /(' RI ,QGRRU2XWGRRU 8QLW DQG 3ULPDU\ -XGJHPHQW Display Method Display Method of Indoor Unit Outdoor Unit Malfunction Indicator has 3 kinds of Name display status and they Indicator Display (during blinking, will displayed ON 0.5s and OFF 0.5s) Dual-8 Possible Reasons circularly every 5s.
Page 62 7URXEOHVKRRWLQJ Display Method Display Method of Indoor Unit Outdoor Unit Malfunction Indicator has 3 kinds of Name display status and they Indicator Display (during blinking, will displayed ON 0.5s and OFF 0.5s) Dual-8 Possible Reasons circularly every 5s. A/C status Code Blink Display...
Page 63 7URXEOHVKRRWLQJ Display Method Display Method of Indoor Unit Outdoor Unit Malfunction Indicator has 3 kinds of Name display status and they Indicator Display (during blinking, will displayed ON 0.5s and OFF 0.5s) Dual-8 Possible Reasons circularly every 5s. A/C status Code Blink Display...
Page 64 7URXEOHVKRRWLQJ Display Method Display Method of Indoor Unit Outdoor Unit Malfunction Indicator has 3 kinds of Name display status and they Indicator Display (during blinking, will displayed ON 0.5s and OFF 0.5s) Dual-8 Possible Reasons circularly every 5s. A/C status Code Blink Display...
Page 65: How To Check Simply The Main Part
Troubleshooting 9.4 How to Check simply the main part (1) Temperature sensor malfunction...
Page 66 Troubleshooting (2) PG motor (indoor fan) does not operate (H6) Start Check whether the feedback terminal of PG motor is connected tightly Insert the feedback terminal of PG motor tightly Eliminate the malfunction Check whether the control end of PG motor is connected tightly Insert the control end of PG motor...
Page 67 Troubleshooting (3) Jumper cap malfunction (C5) Start No jumper cap on the controller Please install the correct jumper Eliminate the malfunction Whether the jumper cap is inserted correctly and tightly Insert the jumper cap tightly Eliminate the malfunction Replace the jumper cap with the same model Eliminate the malfunction...
Page 68 Troubleshooting (1) Key detection point Test 4 Test 2 Test 9 Test 3 Test Test 5 Test 7 Test 6 Tset 8 Test 10 Test 11 Test 16 Test14 Test15 Test12 Test13...
Page 69 Troubleshooting Test point No. Test point Corresponding component Test value under normal situation Test 1 Between A and C Neutral wire and live wire 160V-265V Test 2 Between B and C Neutral wire and live wire 160V-265V Test 3 Between D and E Electrolytic capacity of DC bus bar 180VDC-380VDC Test 4...
Page 70 Troubleshooting (2) Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; Is reactor (L) well connected? Is connection wire loosened or pull-out? Is reactor (L) damaged? Malfunction diagnosis process:...
Page 71 Troubleshooting (3) IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board of outdoor unit) Main detection point: If control board AP1 and compressor COMP is well connected? If they are loosened? If the connection sequence is correct? Is voltage input in the normal range (Test the voltage between L N of wiring board XT by DC voltage meter)? If coil resistance of compressor is normal? Is compressor coil insulating to copper pipe well?
Page 72 Troubleshooting...
Page 73 Troubleshooting (4) Diagnosis for anti-high temperature overload protection (AP1 below is control board of outdoor unit) Main detection point: If the outdoor ambient temperature is in normal range; If the indoor and outdoor fan is running normal; If the radiating environment of indoor and outdoor unit is well. Malfunction diagnosis process: Anti-high temperature overload protection...
Page 74 Troubleshooting (5) Diagnosis for failure startup malfunction (AP1 below is control board of outdoor unit) Main detection point: If the compressor wiring is correct? If the stop time of compressor is enough? If the compressor is damaged? If the refrigerant charging is too much? Malfunction diagnosis process: Energize the unit and start it...
Page 75 Troubleshooting (6) Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit) Main detection point: If the system pressure is over-high? If the work voltage is over-low? Malfunction diagnosis process: Synchronism after Synchronism energize the unit occurred during and start it operation Check if the fan...
Page 76 Troubleshooting (7) Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit) Main detection point: If the electron expansion valve is connected well? Is the expansion valve damaged? If the refrigerant is leakage? If the overload protector is damaged? Malfunction diagnosis process: After the unit de-energized...
Page 77 Troubleshooting (8) PFC (correction for power factor) malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: Check if reactor (L) of outdoor unit and PFC capacity are damaged Malfunction diagnosis process: Start Check the connection wire of reactor (L) of outdoor unit and...
Page 78 Troubleshooting (9) Communication malfunction (AP1 below is control board of outdoor unit) Main detection point: Check if the connection wire and the built-in wiring of indoor and outdoor unit is connected well and no damaged; If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: Start...
Page 79 Troubleshooting (10) Diagnosis process for outdoor communication circuit: Start Test voltage value with Test 10 position in diagram with voltage meter Number jumping Test voltage value with Test 15 position in diagram with voltage meter Number jumping Outdoor unit Finish Test voltage malfunction value with Test...
Page 80 7URXEOHVKRRWLQJ Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units Temp. Temp. Resistance Resistance Temp. Resistance Resistance Temp. ...
Page 81 7URXEOHVKRRWLQJ Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors Temp. Temp. Temp. Temp. Resistance Resistance Resistance Resistance ...
Page 82 7URXEOHVKRRWLQJ Appendix 3: Resistance Table of Outdoor Discharge Temperature Sensor Temp. Temp. Temp. Temp. Resistance Resistance Resistance Resistance ...
Page 83: 2-Way, 3-Way Valve Appearance
Troubleshooting 9.5 2-way, 3-way Valve Appearance 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench (4mm) Open position Flare nut Flare nut Closed position Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works...
Page 84 Troubleshooting Liquid side Indoor unit Outdoor unit Clsed 2-way valve Gas side Clsed 3-way valve Vacuum pump OPEN CLOSE * Procedure CAUTION: (1)Connect the charge hose from the manifold valve to the ser- If gas leakage are discovered in step 5 above, take the vice port of the gas side packed valve.
Page 85 Troubleshooting Liquid side Indoor unit Open Outdoor unit 2-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air • Procedure (1) Confirm that both the 2-way and 3-way valves are set to (7) Immediately set the 3-way valve to the closed position. –...
Page 86 Troubleshooting Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder R410A OPEN CLOSE • Procedure (1) Confirm that both the liquid side valve and the gas side (6) Disconnect the charge set and the gas cylinder, and set the Liquid side and Gas side valves to the open position.
Page 87 Troubleshooting Balance Refrigerant of the 3-way Valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves (3) Open the valve (Lo side) on the charge set and are set to the back seat.
Page 88 Troubleshooting Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose (3) Close the valve (Lo side) on the charge set, of charge set center hose turn off the vacuum pump, and confirm that the gauge needle does not move (approxima-...
Page 89: Gas Charging
Troubleshooting Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Open 3-Way valve Gas side Open 3-Way valve Check valve Charging cylinder OPEN CLOSE • Procedure This is different from previous procedures. (1) Connect the charge hose to the charging Because you are charging with liquid refrigerant cylinder.
Page 90: Part 10 Removal Procedure
Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. 1. External features If ON/OFF button is kept pushing for 5 seconds, aforced cooling op- eration willbe carried out for approx.
Page 91 Removal Procedure Support the front panel by one 3. Opening and shuttingfront panel hand, while remove the rotation Pull down horizontal blade axis at the upper center by the by pulling forward. other hand. And pull out the front panel forward to remove.
Page 92 Removal Procedure 3RLQWV 3URFHGXUH 6WHS 2SHQLQJ DQG FORVLQJ RI VHUYLFH FRYHU 5HPRYH D VHUYLFH FRYHU PRXQWLQJ VFUHZ 2SHQ VHUYLFH FRYHU XSZDUG $ VZLWFK IRU ¿HOG VHWWLQJ LV QRW SURYLGHG LQ SDUWLFXODU screws 5HPRYDO RI IURQW JULOOH DVVHPEO\ 5HPRYH WKH 5 VFUHZV LQ WKH ULJKW DQG WKH OHIW 6FUHZ VWRSSHUV LQVLGH WKH ZKLFK ¿[ WKH PDLQ ERG\...
Page 93 Removal Procedure 7. Remove electrical box Disconnect the Cable Pay attention to the direction clamp of the retainer of the thermistor so that the retainer will not touch the harness (same as the existing models.) R e m o v e Te m p e r a t u r e Heat exchanger thermistor Sensor;...
Page 94 Removal Procedure 9. Remove piping fixture. Remove Pipe Clamp Auxiliary piping Piping fixture Auxiliary piping Adjust the pipeline slightly Loosen the screws, Heat exchanger in the right and the left, which fix the Evaporator Assy. Remove Evaporator Assy...
Page 95 Removal Procedure 10. Remove Cross Flow Fan Fan Motor pressure plate of motor Twist off the screws fixing the pressure plate of motor and then remove the motor and the blade. Remove shaf t cushion rubber base shaf t c ushion rubber base...
Page 96: Removal Procedure Of Outdoor Unit
Removal Procedure 10.2 Removal Procedure of Outdoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Remove top cover and handle Twist off the screws used for fixing the handle, pull handle upward remove it.
Page 97 Removal Procedure Remove panel Twist off the screws fixing the panel and then remove the panel. Lift the front panel and Twist off the screws fixing remove it while pushing the the panel, pull it upward, right side panel inwards. loosen the clasp on the Procedure Points S t e p...
Page 98 Removal Procedure 5.Remove the electrical box. Twist off the two screws Electrical box fixing the electric box cover with screwdriver, pull it upward and then remove the electric box cover. Twist off the screws fixing electric with screwdriver, loosen tieline, pull out the wiring terminal, pull it upward to remove the electric box sub-assy.
Page 99 Removal Procedure 7.Remove the sound blanket. Since the piping ports on Lift and remove the the sound blanket are sound blanket (top). torn easily, remove the blanket carefully. Untie the strings and open the sound blanket. Lift and remove the sound blanket (body) as it is opened.
Page 100 Removal Procedure Provide a protective sheet or Unsolder the weld spot a steel plate so that the between four-way 4-way Valve brazing flame cannot valve compressor, influence peripheries. valve and then remove the four-way valve sub-assy. C a u t i o n C a u t i o n C a u t i o n C a u t i o n...

This manual is also suitable for:

Evo-18 Evo-24 Cevi-24 Cevo-24 Cevi-18 Cevo-18 ... Show all