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Panasonic CU-2E18SBU, Руководство по обслуживанию

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13.5  Cooling Overload Control (Cool) 

  This control detect outdoor pipe temperature and perform the compressor frequency restriction during cooling 

operation. 

 

Comp stop

Comp freq 
restricted 

140°F

134.6°C

Comp freq 
free 

147.2°F

OD Pipe 
temp

 

13.6  Heating Overload Control (Heat) 

  This control detect indoor pipe temperature and perform the compressor frequency restriction during heating 

operation. 

 

Comp stop

Comp freq 
restricted 

127.4°F

Comp freq 
free 

140°F

ID Pipe 
temp

118.4°F

Comp freq 
maintain 

 

 

  This control detect outdoor ambient temperature and perform the fan speed adjustment during heating operation. 

 

RPM controlled 

53.6°F

50°F

RPM free 

OD temp 

 

13.7  Extreme Low Temperature Compressor Low Pressure Protection 

Control (Heat) 

  This control is to prevent low pressure drops too low during extremely low outdoor ambient temperature to 

improve the compressor reliability. 

  During heating operation, when outdoor ambient temperature is in Zone 1, this control will be activated. 

Compressor frequency restriction will be based on outdoor piping temperature. 

 

Zone 0 

23°F 

26.6°F

Zone 1 

OD temp 

Comp freq 

free 

Comp freq 

restricted 

Comp freq 

stop 

-9.4°F 

-5.8°F 

-14.8°F 

-11.2°F 

OD pipe 

 

 
 
 

Содержание CU-2E18SBU

Страница 1: ...erienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this ...

Страница 2: ... Dew Prevention Control Cool 24 13 3 Electronic Parts Temperature Rise Protection 1 Cool 24 13 4 Electronic Parts Temperature Rise Protection 2 Cool 24 13 5 Cooling Overload Control Cool 25 13 6 Heating Overload Control Heat 25 13 7 Extreme Low Temperature Compressor Low Pressure Protection Control Heat 25 13 8 Deice Control 26 13 9 Time Delay Safety Control Restart Control 26 13 10 30 seconds For...

Страница 3: ...refrigeration cycle and result in explosion injury etc 8 Do not add or replace refrigerant other than specified type It may cause product damage burst and injury etc 9 For R410A model use piping flare nut and tools which is specified for R410A refrigerant Using of existing R22 piping flare nut and tools may cause abnormally high pressure in the refrigerant cycle piping and possibly result in explo...

Страница 4: ...ay cause electrical shock in case of equipment breakdown or insulation breakdown CAUTION 1 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 2 Do not release refrigerant during piping work for installation re installation and during repairing a refrigeration parts Take care of the liquid refriger...

Страница 5: ...Pressure Level dB A 49 Sound Power Level dB 63 Power Factor 99 98 Maximum Current A 13 6 Maximum Input Power W 3 04k Starting Current A 8 5 Minimum Circuit Ampacity A 20 Dimension Height mm inch 795 31 5 16 Width mm inch 875 95 34 15 32 3 3 4 Depth mm inch 320 12 5 8 Net Weight kg lb 71 157 Connection cable 3 1 Earth ø1 5 mm 2 Pipe Length Range 1 room m ft 3 25 9 8 82 0 Maximum Pipe Length Total R...

Страница 6: ...B4U CS E9SD3UAW 3 2 kW CS E12RKUAW CS E12RB4UW CS E12SD3UAW Capacity range of connectable indoor units From 3 2 kW to 6 4 kW Piping Length 1 room maximum pipe length m ft 25 82 0 Allowable elevation m ft 15 49 2 Total allowable pipe length m ft 50 164 0 Total pipe length for maximum chargeless length m ft 20 65 6 Additional gas amount over chargeless length g m oz ft 20 0 2 Note Available Remarks ...

Страница 7: ...0 1330 360 1690 12 55 19 00 6 0 0 6 0 6 Specifications are subject to change without notice for further improvement Indoor unit capacity Total Heating Capacity kW Input Power W COP W W HSPF Current 230V A Moisture Removal Volume l h Heating Room A Room B Total min max Rating min max Region IV Region V 2 Room 1 6 1 6 3 2 2 350 2 350 4 70 2 11 5 64 1450 400 1770 3 24 9 50 8 50 6 5 1 6 2 0 3 6 2 329 ...

Страница 8: ... View Side View 1 3 32 39 3 38 3 7 8 3 7 8 24 1 8 Anchor Bolt Pitch 14 13 64 x 24 1 8 34 15 32 5 5 32 3 3 4 1 1 2 5 7 32 1 5 8 14 3 6 3 9 32 5 5 32 1 21 32 3 3 8 x 3 10 1 8 8 9 32 6 9 16 63 64 3 3 16 3 19 32 43 64 3 3 8 x 3 10 1 8 2 5 16 12 5 8 31 5 16 2 1 2 15 16 Unit inch ...

Страница 9: ...MP SENSOR PIPE TEMP SENSOR HEAT EXCHANGER EVAPORATOR INTAKE TEMP SENSOR PIPE TEMP SENSOR HEAT EXCHANGER EVAPORATOR PIPE TEMP SENSOR PIPE TEMP SENSOR EXPANSION VALVE A STRAINER EXPANSION VALVE B STRAINER STRAINER 3 WAY VALVE 3 WAY VALVE COMPRESSOR TEMP SENSOR COMPRESSOR LIQUID SIDE LIQUID SIDE GAS SIDE 3 WAY VALVE 3 WAY VALVE 3 WAY VALVE GAS SIDE 3 WAY VALVE INDOOR B INDOOR A OUTDOOR ...

Страница 10: ...10 5 Block Diagram 1 2 3 1 N L POWER SUPPLY TO INDOOR UNIT A TO INDOOR UNIT B 2 3 FUSE NOISE FILTER SC REACTOR L FUSE FM COMP ...

Страница 11: ...HT WHT WHT WHT WHT CN DISP 1 WHITE CN NMODE 1 WHITE CN DISP 1 WHITE CN DISP 2 WHITE CN NMODE YELLOW ELECTRO MAGNETIC COIL 4 WAY VALVE CRANK CASE HEATER ELECTRO MAGNETIC COIL EXPAND VALVE ELECTRO MAGNETIC COIL EXPAND VALVE SENSOR COMPLETE DIS T TEMP SENSOR THERMISTOR PIPE TEMP SENSOR DEF THERMISTOR SENSOR COMPLETE SENSOR COMPLETE COND TEMP SENSOR THERMISTOR OUTLET TEMP SENSOR THERMISTOR GAS PIPE SE...

Страница 12: ...WHT AC BLK GRY BLK BLK FUSE1 T 3 15A L 250V FUSE2 T 2 5A L 250V RY PWR RY AC PTC1 PTC2 DB2 DB1 L DB3 CT400 RY C T1 L1 I L2 I L2 O L1 O L L L L L L P N U V W CN FM1 WHITE 1 1 1 1 1 4 1 1 1 6 1 1 1 3 3 8 2 4 11 10 2 7 CN PSW1 BLUE CN TH3 WHITE CN TH4 WHITE CN TH1 WHITE CN TH2 YELLOW CN DIS WHITE CN EV2 YELLOW CN EV1 WHITE CN HT BLACK CN HOT BLUE CR3 RY HOT RY HT ELECTRONIC CONTROLLER MAIN 5V R100 15...

Страница 13: ...13 8 Printed Circuit Board 8 1 Main Printed Circuit Board CN TH1 CN HOT CN DATA CN EV1 CN HT CN EV2 CN DIS CN TH3 CN TH2 CN TH4 CN PSW1 CN FM1 ...

Страница 14: ...14 8 2 Noise Filter Printed Circuit Board CN COM CN DATA CN WHT CN BLK 8 3 Display Printed Circuit Board CN DISP1 CN NMODE1 CN NMODE2 SW1 SW2 SW3 SW4 SW5 LED1 LED2 LED3 LED4 LED5 LED6 ...

Страница 15: ...nal gas Addi tional refri ge rant Power supply Power supply wire size OD ID connection wire size Gas Liquid Outdoor OD CU 2E18SBU Indoor ID 2 UNITS OF CS E9RKUAW 16700 R410A Ø3 8 Ø9 52mm Ø1 4 Ø6 35mm 24 6 ft See Step 1 9 8 ft 82 0 ft 164 0 ft 65 6 ft 0 2 oz ft 208 230V 60 Hz MCA 20A MOP 25A AWG12 AWFG16 Outdoor OD CU 2E18SBU Indoor ID 2 UNITS OF CS E12RKUAW Outdoor OD CU 2E18SBU Indoor ID 1 UNIT O...

Страница 16: ...sent before installing the outdoor unit HEAT PUMP TYPES ONLY Part name Qty Diagram Application Drain elbow 1 For connecting the drain pipe 10 2 Cutting and Flaring the Piping 1 Please cut using pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pipe 3 Please make ...

Страница 17: ...ation parts you should purchase It is advisable to avoid more than 2 blockage directions For better ventilation multiple outdoor installation please consult authorized dealer specialist 3 8 9 52 mm Gas side piping 1 4 6 35 mm Liquid side piping Additional drain hose Connection cable Conduit Power supply cord Conduit This illustration is for explanation purposes only Note Respective indoor unit ins...

Страница 18: ... 24 1 8 613 mm 5 5 32 131 mm 5 8 16 mm 14 3 16 360 5 mm 10 5 Connect the Piping Remove the control board cover resin from the outdoor unit by loosening three screws Connecting the Piping to Outdoor Unit Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Make flare after inserting the flare nut locate at valve onto the copper pipe Align center of piping to valves and ...

Страница 19: ...aps of gas side 3 way valve at a torque of 13 3 Ibf ft 18 N m with a torque wrench 7 Remove the valve caps of both of the 2 way valve and 3 way valve Position both of the valves to Open using a hexagonal wrench 5 32 4 mm 8 Mount valve caps onto the 2 way valve and 3 way valve o Be sure to check for gas leakage Outdoor unit Liquid side Gas side Vacuum pump Liquid side 3 way valve Gas side 3 way val...

Страница 20: ... 208 230V 60Hz min AWG12 208 230V min AWG16 208 230V min AWG16 208 230V min AWG16 208 230V min AWG16 208 230V min AWG16 208 230V min AWG16 Terminal Indoor Unit B Unit A Unit B Power Supply Cord Indoor outdoor connection wire Indoor Unit A Indoor Unit B 8 For wire stripping and connection requirement refer to the diagram below 9 Secure the power supply cord and connection cables onto the control bo...

Страница 21: ...o Cooling operation is activated with compressor ON o Outdoor ambient temperature is less than 59 F Control contents o When the above conditions are fulfilled based on outdoor pipe temperature the outdoor fan motor will operate according to figure below RPM up RPM unchanged 93 2 F 91 4 F RPM down Stopped 75 2 F 73 4 F 66 2 F 64 4 F OD Pipe temp To improve the judgment accuracy during annual coolin...

Страница 22: ...mand indoor units Operation start condition o Powerful operation ON for targeted indoor unit Operation content o If other indoor units where Powerful operation are OFF achieve setting temperature continuously for 1 minute after received powerful command from indoor unit then capability supply to other indoor units are stopped for minimum 3 minutes Capability supply stop period follows powerful ope...

Страница 23: ...ting was pressed afterward the operation lamp of the indoor unit blinks where the attempt is made to establish the heating operation Its fan is stopped and the air does not discharged o While a heating operation is in progress a cooling operation cannot be performed by an indoor unit in another room In the room where the operation button for heating was pressed first the operation is continued In ...

Страница 24: ...tions o Outdoor ambient temperature is at protection region as shown in figure below Protection Region Normal Region 89 6 F 86 F OD temp o Outdoor unit total current is above 5 5A Control content o Outdoor fan speed is adjusted accordingly Control stop condition o When outdoor ambient temperature is back to normal region During this control outdoor fan speed does not reduce for Quiet operation 13 ...

Страница 25: ...eq maintain This control detect outdoor ambient temperature and perform the fan speed adjustment during heating operation RPM controlled 53 6 F 50 F RPM free OD temp 13 7 Extreme Low Temperature Compressor Low Pressure Protection Control Heat This control is to prevent low pressure drops too low during extremely low outdoor ambient temperature to improve the compressor reliability During heating o...

Страница 26: ...uency will increase However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes Operation Mode CU 2E18SBU X A Y A Cooling Soft Dry A 12 2 17 5 Cooling Soft Dry B 11 5 17 5 Heating 13 2 17 5 B A 43 C 109 4 F 42 C 107 6 F Outdoor Intake Temperature 13 12 IPM power transistor Protection Control Overheating Prevention Control o If IPM temperature ...

Страница 27: ... all indoor units 13 15 Valve Close Detection Control This control detects 3 way valve close condition to prevent damage to refrigerant cycle Start conditions o For all connected indoor units if Indoor intake temperature indoor piping temperature are between 28 4 F and 35 6 F continuously for 5 minutes after compressor ON at first cooling operation o The first cooling operation is defined as cooli...

Страница 28: ...tion will stop automatically after 15 minutes if PUMP DOWN switch SW1 is not pressed again Pump down operation is not started within 3 minutes after compressor is stopped LED 2 3 4 5 Message Status Pump down operation in progress 3 minutes before operation end 2 minutes before operation end 1 minute before operation end Pump down operation end Flashing Close Hexagonal wrench Liquid shut off valve ...

Страница 29: ...ing automatic correct example Terminal block From Room B to the living room From Room A to the bedroom NOTE 1 For two rooms connection LED 4 and 5 are not illuminated after wiring operation complete 2 If the outdoor air temperature is less than 41 F or unit has abnormality wiring operation will not start 3 After wiring check operation is complete LED indication will illuminated until normal operat...

Страница 30: ...pecification and combination table in catalogue H15 Compressor temperature sensor abnormality O O Continuous for 5s Compressor temperature sensor open or short circuit Compressor temperature sensor lead wire and connector H16 Outdoor current transformer CT abnormality O O Current transformer faulty or compressor faulty Outdoor PCB faulty or compressor faulty H27 Outdoor air temperature sensor abno...

Страница 31: ...ation short circuit F11 4 way valve switching abnormality O O O O 4 times happen within 30 minutes 4 way valve switching abnormal 4 way valve Lead wire and connector F17 Indoor standby units freezing abnormality O 3 times happen within 40 minutes Wrong wiring and connecting pipe expansion valve leakage indoor heat exchanger sensor open circuit Check indoor outdoor connection wire and pipe Indoor h...

Страница 32: ...hin 30 minutes Compressor overheat Insufficient refrigerant F98 Total running current protection O O 3 times happen within 20 minutes Total current protection Check refrigeration system Power source or compressor lock F99 Outdoor direct current DC peak detection O O O Continuous happen for 7 times Power transistor module current protection Power transistor module faulty or compressor lock LED 1 il...

Страница 33: ...eful of electrostatic discharge 16 1 1 Removing the Cabinet Top Plate and Cabinet Front Plate 1 Remove the cabinet top plate remove the 8 screws 2 Remove the 8 screws 1 on the center 3 at the top and 4 at the bottom securing the cabinet front plate release the 2 hooks 1 each at the left and right and pull the cabinet front plate toward front side 1 2 Tabs 16 1 2 Remove the Control Board Cover and ...

Страница 34: ...ew at the right side of the control box and pull out the entire control box 9 Release the control P C Board tab to remove the control P C Board 6 9 8 7 16 1 4 Removing the Propeller Fan and Fan Motor 1 Follow the steps in 16 1 1 for removing the cabinet top plate and cabinet front plate 2 Remove the propeller fan by removing the nut turning clockwise at its center 2 ...

Страница 35: ...35 3 Disconnect the fan motor connector from the control P C Board 4 Loosen the 4 fan motor mounting screws then remove the fan motor 4 ...

Страница 36: ...1 17 3 89 1 13 1 6 2 5 22 71 6 5 07 0 89 5 23 0 87 5 28 0 87 5 38 0 86 5 92 0 85 6 28 0 84 25 77 5 02 1 01 5 19 1 01 5 25 1 01 5 37 1 01 5 92 1 02 6 28 1 02 29 84 2 4 90 1 16 5 08 1 17 5 15 1 17 5 27 1 18 5 82 1 20 6 18 1 21 32 89 6 4 76 1 25 4 95 1 27 5 02 1 27 5 14 1 28 5 67 1 30 6 02 1 32 35 95 4 60 1 34 4 78 1 35 4 85 1 36 4 97 1 37 5 47 1 38 5 80 1 39 40 104 4 25 1 46 4 41 1 47 4 46 1 47 4 57...

Страница 37: ...1 1 26 29 84 2 5 77 1 43 5 99 1 44 6 07 1 44 6 22 1 45 6 86 1 48 7 29 1 49 32 89 6 5 62 1 55 5 84 1 56 5 92 1 57 6 07 1 58 6 69 1 61 7 10 1 62 35 95 5 42 1 65 5 64 1 67 5 71 1 68 5 86 1 69 6 45 1 70 6 84 1 71 40 104 5 01 1 80 5 20 1 81 5 26 1 81 5 39 1 82 5 90 1 80 6 24 1 78 43 109 4 4 71 1 87 4 87 1 87 4 93 1 86 5 03 1 86 5 48 1 81 5 77 1 77 46 114 8 4 37 1 93 4 50 1 91 4 54 1 90 4 62 1 88 4 98 1...

Страница 38: ...2 16 60 8 14 04 1 69 9 83 2 07 7 80 2 30 6 47 2 51 5 94 2 62 5 73 2 60 5 16 2 48 18 64 4 13 94 1 75 9 59 2 10 7 46 2 32 6 06 2 52 5 53 2 65 5 42 2 66 5 06 2 58 20 68 13 83 1 82 9 35 2 13 7 13 2 34 5 65 2 53 5 11 2 68 5 10 2 72 4 96 2 69 21 69 8 13 68 1 86 9 14 2 16 6 99 2 36 5 68 2 54 5 33 2 68 5 39 2 72 5 15 2 69 22 71 6 13 53 1 90 8 94 2 19 6 86 2 37 5 70 2 55 5 55 2 68 5 68 2 72 5 33 2 70 24 75...

Страница 39: ...31 18 64 4 14 07 1 63 9 68 1 96 7 54 2 16 6 12 2 35 5 58 2 47 5 47 2 48 5 11 2 41 20 68 13 97 1 69 9 44 1 99 7 20 2 18 5 71 2 36 5 16 2 49 5 15 2 53 5 01 2 51 21 69 8 13 81 1 73 9 23 2 01 7 06 2 20 5 73 2 37 5 38 2 50 5 44 2 53 5 20 2 51 22 71 6 13 66 1 77 9 02 2 04 6 93 2 21 5 76 2 38 5 60 2 50 5 73 2 54 5 39 2 51 24 75 2 13 35 1 84 8 61 2 09 6 65 2 24 5 81 2 39 6 04 2 51 6 31 2 54 5 76 2 52 3 2 ...

Страница 40: ...62 000 64 000 10 20 30 40 50 60 70 80 90 100 110 120 Outlet Air ﾟF Outdoor Air Temperature ﾟF CS E12RKUAW CS E9RKUAW 14000 15000 16000 17000 18000 19000 20000 21000 22000 10 20 30 40 50 60 70 80 90 100 110 120 Capacity Btu h Outdoor Air Temperature ﾟF 1 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 10 20 30 40 50 60 70 80 90 100 110 120 Current A Outdoor Air Temperature ﾟF 208V 230V 130 000 135 00...

Страница 41: ...62 000 62 200 62 400 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Outlet Air ﾟF Piping Length ft CS E12RKUAW CS E9RKUAW 15500 16000 16500 17000 17500 18000 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Capacity Btu h Piping Length ft 6 000 6 100 6 200 6 300 6 400 6 500 6 600 6 700 6 800 6 900 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Current A Piping Length ft 208V 230V 144 0 145 0 146 ...

Страница 42: ...0 55 60 65 70 75 Outlet Air ﾟF Outdoor Air Temperature ﾟF CS E12RKUAW CS E9RKUAW 10000 12000 14000 16000 18000 20000 22000 24000 26000 28000 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Capacity Btu h Outdoor Air Temperature ﾟF 6 500 7 000 7 500 8 000 8 500 9 000 9 500 10 000 10 500 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Current A Outdoor Air Temperature ﾟF 208V 230V 260 0 280 0 300 0 320 0 34...

Страница 43: ... 94 200 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Outlet Air ﾟF Piping Length ft CS E12RKUAW CS E9RKUAW 19600 19800 20000 20200 20400 20600 20800 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Capacity Btu h Piping Length ft 7 800 7 900 8 000 8 100 8 200 8 300 8 400 8 500 8 600 8 700 8 800 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Current A Piping Length ft 208V 230V 325 0 335 0 345 0...

Страница 44: ...35 38 41 39 81 57 5 16 1 25 24 23 33 28 31 44 29 10 14 47 76 77 13 11 12 54 3 4 8 9 6 45 52 50 55 58 69 60 I I 61 I I 2 43 51 48 49 80 51 78 79 74 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 45: ...030 27 FLARE NUT 3 8 2 CWT251031 28 SOUND PROOF MATERIAL 1 CWG302246 29 SOUND PROOR MATERIAL 1 CWG302520 30 SOUND PROOR MATERIAL 1 CWG302521 31 SOUND PROOR MATERIAL 1 CWG302522 32 SENSOR COMPLETE CN DIS 1 CWA50C2722 33 V COIL COMPLETE CN HOT 1 CWA43C2392 O 34 V COIL COMPLETE CN EV1 1 CWA43C2381 O 35 V COIL COMPLETE CN EV2 1 CWA43C2382 O 38 SENSOR COMPLETE CN TH2 1 CWA50C2723 O 39 SENSOR COMPLETE C...

Страница 46: ...ACXF60 02480 74 ACCESSORY CO DRAIN ELBOW 1 CWG87C900 76 NUT TERMINAL COVER 1 CWH7080300J 77 TERMINAL COVER 1 CWH171035 78 TUBE ASSY LIQUID 1 1 CWT026284 79 TUBE ASSY LIQUID 2 1 CWT026285 80 MANIFOLD TUBE ASSY GAS 1 CWT07K1522 81 SPRING FOR SENSOR 4 CWH711010 Note All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock PHAAM Printed in Mal...

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