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Service Manual

Technical Information

19

4. Refrigerant System Diagram

COOLED AIR

HOT DISCHARGED AIR

OUTDOOR COILS

CAPILLARY

AXIAL FAN

COMPRESSOR

HEATING MODE

COOLING MODE

NOTES:

REFRIGERANT FLOW DIRECTION

CENTRIFUGAL 

OR CROSS FAN

HOT AIR

INDOOR COILS

ELECTRIC HEATER

COOLED AIR

(1)C Heat Pump + Auxiliary  Electric Heater

(2) C Electric Heater

COMPRESSOR

OUTDOOR COILS

HOT DISCHARGED AIR

CAPILLARY

REFRIGERANT FLOW DIRECTION

AXIAL FAN

CENTRIFUGAL 

OR CROSS FAN

ELECTRIC HEATER

INDOOR COILS

COOLED AIR

Summary of Contents for KPA07B2D

Page 1: ...AIR CONDITIONER INSTRUCTION MANUAL...

Page 2: ...duction of Control Panel 25 6 2 Description of Each Control Operation 26 Part Installation and Maintenance 30 7 Notes for Installation and Maintenance 30 8 Installation Instructions 33 9 Maintenance 3...

Page 3: ...l Technical Information 1 1 Summary Part Technical Information Models KPE07B2D KPA07B2D KPE09B2D KPA09B2D KPE12B2D KPA12B2D KPE15B2D KPA15B2D KPE07B2P KPA07B2P KPE09B2P KPA09B2P KPE12B2P KPA12B2P KPE1...

Page 4: ...ion IPX4 IPX4 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42...

Page 5: ...Method Capillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter i...

Page 6: ...the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dimension of Carton Box LXWXH inch 45X25 9 32X1...

Page 7: ...illary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter inch 9 32 3...

Page 8: ...essure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dimension of Carton Box LXWXH inch 45...

Page 9: ...apillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter inch 9 32...

Page 10: ...e Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dimension of...

Page 11: ...apillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter inch 9 32...

Page 12: ...IPX4 IPX4 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X...

Page 13: ...ttling Method Capillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Dia...

Page 14: ...e for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dimension of Carton Box LXWXH inch 45X25 9...

Page 15: ...tling Method Capillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diam...

Page 16: ...r the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dimension of Carton Box LXWXH inch 45X25 9 32X...

Page 17: ...nal Internal Throttling Method Capillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin cop...

Page 18: ...Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 2 5 Dimension WXHXD inch 42X16X21 1 2 42X16X21 1 2 Dim...

Page 19: ...Method Capillary Capillary Operation Temp F 61 86 61 86 Ambient Temp Cooling F 55 83 55 83 Ambient Temp Heating F 75 75 Condenser Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pipe Diameter i...

Page 20: ...Service Manual Technical Information 18 3 Outline Dimension Diagram Unit inch 21 1 2 42 16...

Page 21: ...MODE COOLING MODE NOTES REFRIGERANT FLOW DIRECTION CENTRIFUGAL OR CROSS FAN HOT AIR INDOOR COILS ELECTRIC HEATER COOLED AIR 1 Cooling Heat Pump Auxiliary Electric Heater 2 Cooling Electric Heater COMP...

Page 22: ...ol Symbol Color Symbol Symbol Color Symbol Name WH White GN Green CAP Capacitor YE Yellow BN Brown COMP Compressor RD Red BU Blue Grounding wire YEGN Yellow Green BK Black Electric Diagram Instruction...

Page 23: ...Technical Information 21 KPA07B2D KPA09B2D KPA12B2D KPA07B2P KPA09B2P KPA12B2P KPA15B2P KPA15B2D 66161377 These circuit diagrames are subject to change without notice please refer to the one supplied...

Page 24: ...Service Manual Technical Information 22 5 2 PCB Printed Diagram 5 2 1 Silk Screen on Main Board 1 Top View Bottom View...

Page 25: ...Service Manual Technical Information 23 5 2 2 Silk Screen on Main Board 2 Top View Bottom View...

Page 26: ...Display Board 1 ON OFF button 5 Fan button 9 Ambient temperature and set temperature indicator 2 Mode button 6 Wire connection interface between boards 10 Mode indicator sleep cool heat and fan mode 3...

Page 27: ...ystem will stop operation 3 Timer Setting Press TIMER button to set timer function and Timer icon will be on Dual 8 nixie tube will display selected time which can be adjusted by pressing or buttons T...

Page 28: ...tatus 1 4 1 1 General type HEAT PUMP TYPE Operation condition and process electric heating and compressor cant operate at the same time a When Tpreset 5oF 3o C Tindoor amb Tindoor amb compensation Tpr...

Page 29: ...it will enter timer setting by pressing this button b In the status with timer it can show the residual time by pressing this button c Press this button to cancel timer when showing the time or setti...

Page 30: ...remote controller mode ON shield OFF valid default OFF 4 Configuration that isnt needed the hotel maintenance personnel to control configuration is valid after B dial up is energized while configurat...

Page 31: ...ng and cooling mode Press the WARMER button or COOLER button to switch the setting temperature and ambient temperature displaying Setting temperature displaying the dual 8 displays SP After quitting c...

Page 32: ...ed power cord from the manufacture or distribu tor Prohibit prolong the wire by yourself 10 Make sure all wires and pipes are connected prop erly Warnings Electrical Safety Precautions 1 Avoid contact...

Page 33: ...completed 4 If there is refrigerant leakage please take sufficient measure to minimize the density of refrigerant 5 Never touch the refrigerant piping or compressor without wearing glove to avoid scal...

Page 34: ...e 32 8 Soldering appliance refrigerant container 7 Electronic leakage detector 5 Vacuum pump 6 Pressure meter 3 Open end wrench inner hexagon spanner 4 Universal meter 1 Screw driver 2 Electroprobe Ma...

Page 35: ...improper operation For retrofit applications foam seals on outdoor coil tube sheets must make a seal between the coil and the grille or loss of performance and premature damage to the major components...

Page 36: ...all power to unit to avoid possible electrical shock during installation WARNING BAFFLES Fig 2 Remove Existing Outdoor Grille Baffles on Competitive Grille Fig 3 GE Metal Sleeve Fig 4 Remove Bottom S...

Page 37: ...ng Screw Location Fig 8 Removing Front Panel Fig 9 Securing Unit UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Failure to remove shipping tape...

Page 38: ...re sensor is not connected well temperature sensor is damaged connection wire is short circuited or broken Please check it according to the resistance table of temperature sensor 4 Outdoor tube temper...

Page 39: ...w 9 Compressor and relay of electric heater is stick together PTAC A2 Indoor fan operates and other loads stop operation 1 Relay is stick together 10 Current detection for neutral wire and live wire i...

Page 40: ...Flash 8 times and off 3s circularly Indoor fan operates compressor and outdoor fan operates or stop operation according to the tube temperature of evaporator The electric heating is started up 1 Norm...

Page 41: ...unction Insert the temperature well Is malfunction eliminated Pull the parts uprightly Is malfunction eliminated Replace the temperature sensor with the same model Is malfunction eliminated Replace th...

Page 42: ...ction at the air inlet outlet Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Find out the leakage point to weld it or replace the damage parts vacuum pump and then charg...

Page 43: ...f compressor Replace the controller with a new one End Check whether there s obstructions nearby the condenser If yes please remove it Check the parts with abnormal sound and replace these parts with...

Page 44: ...outer casetoo high Is malfunction eliminated If the capillary frosts contiguously and the frost can t be defrosted replace the capillary sub assy vacuum pump and then charge refrigerant again When st...

Page 45: ...troubleshooting for the malfunction of relay Check whether the wires are connected or inserted normally Connect and insert wires again according to the wiring diagram Put through the power and then te...

Page 46: ...ble the unit and find out the short circuit part between the electric heater and the unit case and then conduct the insulation treatment Replace the electric heater and related connection wires Replac...

Page 47: ...ic heating Check whether the wires are connected or inserted correctly Put through the power and then test it Is malfunction eliminated Put through the power and then test it Is malfunction eliminated...

Page 48: ...ting of abnormal operation current of electric heater Check whether the wires are connected or inserted normal Insert or connect wires according to the wiring diagram again Measure and check whether t...

Page 49: ...of temperature limiter Check whether the wires are inserted or connected normally Connect and insert wires again according to the wiring diagram Measure and check whether the resistance value for eac...

Page 50: ...e c a l p e R n e k o r b s i r e m r o f s n a r T Controller is broken Replace controller is running but there is no cooling effect or no heating effect Air conditioning unit Temp contrller is impr...

Page 51: ...reason and correct it The voltage is not stale Fan doesn t run during air supply Check for the circuit with the circuit diagram Wrong wire connection Damage of fan capacitor Change fan capacitor of s...

Page 52: ...ssor Shortage or too much of refrigerant Adjust the volume ofrefrigerant Thecapillaryisblockandthesuckingtemperature Change capillary is increased Compressor does not run jammed or blocked and the dis...

Page 53: ...ilter is blocked Check the filter to see it s blocked Clean the filter Installation position for unit is improper Check whether the installation postion is proper according to installation requirement...

Page 54: ...e same model Capacitor of compressor is damaged 1 Discharge the capacitor at first and then use universal meter to measure the resistance of fan capacitor It displays 0 or very small 2 If the resistan...

Page 55: ...the unit There s abnormal sound fro the unit Remove foreign objects Adjust all parts position of unit tighten screws and stick damping plaster between connected parts Abnormal shake of compressor Out...

Page 56: ...g Electric Heater 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 32 33 34 35 37 38 39 40 41 42 45 47 50 51 52 54 55 56 57 49 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74...

Page 57: ...P 01221027P 1 21 Bearing Holder Sub assy 26151139 26151139 26151139 1 22 Bearing Holder 26151138 26151138 26151138 1 23 Electric Heater 3200103902 3200103902 3200103902 1 24 Evaporator Assy 01001906 0...

Page 58: ...et 76710287 76710287 76710287 3 60 Compressor and Fittings 00101346 00101 13 47 64 00101350 1 61 Drainage Valve 07101001 07101001 07101001 1 62 Chassis Sub assy 01201241P 01201241P 01201241P 1 63 Foam...

Page 59: ...Holder Sub assy 26151139 26151139 26151139 1 22 Bearing Holder 26151138 26151138 26151138 1 23 Electric Heater 3200103903 3200103903 3200103903 1 24 Evaporator Assy 0100190601 01100100084 01100100041...

Page 60: ...0181156 00181156 00181156 1 59 Compressor Gasket 76710287 76710287 76710287 3 60 Compressor and Fittings 00101376 00101375 00101377 1 61 Drainage Valve 07101001 07101001 07101001 1 62 Chassis Sub assy...

Page 61: ...b assy 01221027P 01221027P 1 21 Bearing Holder Sub assy 26151139 26151139 1 22 Bearing Holder 26151138 26151138 1 23 Electric Heater 3200103902 3200103903 1 24 Evaporator Assy 01100100041 01100100041...

Page 62: ...0040022 4300040026 1 58 Compressor Overload Protector Internal 1 59 Compressor Gasket 76710287 76710216 3 60 Compressor and Fittings 00101348 00101378 1 61 Drainage Valve 07101001 07101001 1 62 Chassi...

Page 63: ...10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 32 33 34 35 37 38 39 40 41 42 45 47 50 51 52 54 55 56 49 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 44 43 53 48 31 30 29 28 36 46 57 2 50...

Page 64: ...21027P 1 21 Bearing Holder Sub assy 26151139 26151139 26151139 1 22 Bearing Holder 26151138 26151138 26151138 1 23 Electric Heater 3200103902 3200103902 3200103903 1 24 Evaporator Assy 01100100041 011...

Page 65: ...Capillary Sub assy 03000600104 03000600079 03000600111 1 58 Drainage Valve 07101001 07101001 07101001 1 59 Chassis Sub assy 01201241P 01201241P 01201241P 1 60 Foam Water Tray 12311048 12311048 123110...

Page 66: ...01221027P 1 21 Bearing Holder Sub assy 26151139 26151139 26151139 1 22 Bearing Holder 26151138 26151138 26151138 1 23 Electric Heater 3200103902 3200103903 3200103903 1 24 Evaporator Assy 01001906 01...

Page 67: ...e Tube 1 57 Capillary Sub assy 03000600080 03000600080 03000600104 1 58 Drainage Valve 07101001 07101001 07101001 1 59 Chassis Sub assy 01201241P 01201241P 01201241P 1 60 Foam Water Tray 12311048 1231...

Page 68: ...sy 01221027P 01221027P 1 21 Bearing Holder Sub assy 26151139 26151139 1 22 Bearing Holder 26151138 26151138 1 23 Electric Heater 3200103903 3200103902 1 24 Evaporator Assy 01100100041 01100100041 1 25...

Page 69: ...1 1 56 Discharge Tube 03511003 1 57 Capillary Sub assy 03000600133 03000600176 1 58 Drainage Valve 07101001 07101001 1 59 Chassis Sub assy 0120124108P 01201241P 1 60 Foam Water Tray 12311048 12311048...

Page 70: ...cedure 1 Remove panel panel case clasp Hold the panel and pat both sides of panel to separate the panels and then remove the front panel Hold the front part of filter by hand lift up the filter and th...

Page 71: ...emove middle connection board 3 Remove Outer Support Sub assy 4 Remove Baffle Plate Press the 2 clasps of filter to make it separated from the groove and then pull the filter outwards to remove it Rem...

Page 72: ...Sub Assy 5 Remove Rear Grill 6 Remove Top Cover Sub Assy 7 Remove LCD Cover Sub assy Remove 6 screws on rear grille and then remove the rear grille Remove 4 screws on top cover sub assy and then remov...

Page 73: ...Clapboard Sub Assy Remove three screws on baffle plate electric box and then remove the baffle plate electric box Remove two screw on electric box hold the bottom part of electric box and move it upw...

Page 74: ...Steps Procedure Screws Screws Screws Air Duct Assy Helicoid Tongue 11 Remove Helicoid Tongue 12 Remove Air Duct Assy b Remove 6 screws on helicoid tongue and then remove the helicoid tongue Remove 4 s...

Page 75: ...ser and then remove the flow guide loop Condenser 4 way valve Evaporator Compressor 14 Remove condenser and evaporator Remove the 3 screws fixing the Evaporator unsolder the welding joints of the suct...

Page 76: ...or Nut with Washer Drainage Valve Thermal insulation plate Water Tray 15 Remove thermal insulation plate and Water Tray Remove 2 screws on thermal insulation plate and then remove thermal insulation p...

Page 77: ...33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 96 8 36 52 53 51 8 11 75 76 75 2 24 99 98 6 37 54 53 6 12 77 78 77 25 Appendix Appendix...

Page 78: ...358 233 6 0 717 24 8 60 23 95 9 779 165 2 2 28 235 4 0 697 26 6 57 18 96 8 9 382 167 2 206 237 2 0 678 28 4 54 31 98 6 9 003 168 8 2 133 239 0 66 30 2 51 59 100 4 8 642 170 6 2 064 240 8 0 642 32 49...

Page 79: ...95 13 04 165 2 3 04 235 4 0 93 26 6 76 24 96 8 12 51 167 2 94 237 2 0 904 28 4 72 41 98 6 12 168 8 2 844 239 0 88 30 2 68 79 100 4 11 52 170 6 2 752 240 8 0 856 32 65 37 102 2 11 06 172 4 2 663 242 6...

Page 80: ...342 8 77 49 19 147 2 10 54 217 4 3 04 8 6 323 9 78 8 47 08 149 10 18 219 2 2 955 10 4 306 2 80 6 45 07 150 8 9 827 221 2 872 12 2 289 6 82 4 43 16 152 6 9 489 222 8 2 792 14 274 84 2 41 34 154 4 9 165...

Page 81: ...JF00304209...

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