Panasonic CU-2E18NBK Service Manual
Contents
1. TTT 6 700 r td 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 41 e Piping Length Characteristic Heating Condition Room temperature 20 C DBT Operation condition High fan speed Outdoor temperature 8 3 C DBT 6 1 WBT Compressor Freq Fh B Indoor unit capacity Heating 3 2 CS E12NKKW service mode frequency 52Hz e 208 m 230 44 000 43 000 42 000 m 41 000 40 000 Pree 39 000 Outlet Air Temperature C 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 4 600 4 500 PEA 4 400 4 300 4 200 Heating Capacity kW 4 100 4 000 PPE 3 900 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 737 0 736 Do 28 85 0 735 2 0 9 94 0734 0 733 34 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 7 800 7 600 Te 7 400 7 200 Ps TTE Current A 7 000 6 800 tl 6 600 6 400 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 42 17 1 2 Two Indoor Unit Operation e Cooling2. 13 8 1 Main Printed Circuit Board 13 8 2 Noise Filter Printed Circuit Board 14 8 3 Display Printed Circuit Board 14 9 Installation Information 15 9 1 Check Points chins en 15 Panasonic 10 Installation Instruction 16 10 1 Select The Best Location 16 10 2 Install The Outdoor Unit 17 10 3 Connect the Piping 17 10 4 Evacuation of the Equipment 18 10 5 Connect The Cable To The Outdoor 19 10 6 Heat Insulation 19 11 Operation Control sss 20 11 1 Cooling Operation 20 11 2 Heating Operation 21 12 Simultaneous Operation Control 22 13 Protection Control 23 13 1 Freeze Prevention control Cool 23 13 2 Dew Prevention control Cool 23 13 3 Electronic Parts Temperature Rise Protection 1 23 Panasonic HA Air Conditioning M Sdn Bhd 2011 Unauthorized copying and distribution is a violation of law 13 4 Electronic Par
3. 1111119 1 Service Manual Air Conditioner Outdoor Unit CU 2E18NBK PHAAM1111089C1 Please file and use this manual together with the service manual for Model No CS E9NKKW CS E12NKKW Order No AN WARNING This service information is designed for experienced 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 service information by anyone else could result in serious injury or death A PRECAUTION OF LOW TEMPERATURE In order to avoid frostbite be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit TABLE OF CONTENTS 1 Safety Precautions 3 2 Specifications eee eee 5 2 41 CU22ET8NBK 5 3 Dimensions 8 4 Refrigeration Cycle Diagram 9 5 Block Diagram eee 10 6 Wiring Connection Diagram 11 7 Electronic Circuit Diagram 12 8 Printed Circuit Board
4. 3 11 9 7 5 3 A 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 49 e Heating Characteristic Condition Room temperature 20 C DBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fh B Indoor unit capacity Heating 3 2 3 2 CS E12NKKW CS E12NKKW service mode frequency 63Hz 46 000 e 208 m 230 44 000 42 000 LL 40 000 38 000 36 000 34 000 Outlet Air Temperature C 32 000 30 000 28 000 E 15 13 11 9 7 5 3 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 8 100 7 100 4 Heating Capacity kW o 100 5 100 4 100 iT 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 10 000 9 500 9 000 8 500 8 000 Current A 7 500 L 7 000 mE 6 500 L 6 000 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C 1 100 1 000 0 900 0 800 0 700 0 600 er Gas Side Piping Pressure MPa 0 500 0 400 0300 15 13 11 9 7 5 3 1
5. Spe L t AS HITIOHLNOO WOE bopasns TAO m zH 28 K Wed ZZ rte 39 nu 1 723400 3802 AMIS U3MOd 12 8 Printed Circuit Board 8 1 Main Printed Circuit Board 23503 LESS Wyse 1 10 Qa CN EV1 Gli LOH N rT 2 CN EV1 MHITE E 8 CN TH1 GEE CN EV2 j ae P at fig a wie e e ovaa P agen DN vub bidet 1020 2 s gt 5 13 8 2 Noise Filter Printed Circuit Board O i 20 00000 i CN COM 1 o C414 1 14 0 0407 C416 415 ede FUSE401 30A 250V ACLI BLACK 15 Fez teen un GREEN oe ee 8 3 Display Printed Circuit Board T Tu DISP1 17 ma CN NMODE19 mn CN NMODE2 5 SERES ONLY DD CH Ga CN DISP1 w V K LED1 LEDS LEDS 2 PRIORITY neu CEDG 14 9 Installation Information 9 1 Check Points Indoor outdoor unit conection cables Flexible cord x 4 core polychloroprene sheathed Outdoor unit power supply Single phase 208 230V 60Hz
6. 2 700 Cooling Capacity kW 2 600 2 500 3 4 5 6 7 8 9 101112 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 980 0 970 0 960 Gas Side Piping Pressure MPa 0 950 ML 0 940 pate esl e 3 4 5 6 7 8 9 40 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 4 000 3 900 3 800 3 700 Current A 3 600 3 500 amp ee 3 400 T 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length 37 e Piping Length Characteristic Cooling Condition Room temperature 27 DBT 19 C WBT Operation condition High fan speed Outdoor temperature 35 C DBT Compressor Freq Fc B Indoor unit capacity Cooling 3 2 CS E12NKKW service mode frequency 33Hz e 208 m 230 14 700 14 500 14 300 14 100 13 900 13 700 e 13 500 Outlet Air Temperature 13 300 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 3 350 3 250 3 150 Piping Length m 3 050 2 950 Cooling Capacity kW 2 850 2 750 2 650 3 4 5 6 7 8 9 10 11 12 13
7. 20A switch Allowable elevation circuit breaker Flexible cord x 4 core 15 TY max Not included in the unit polychloroprene sheathed EE Not included in the unit elevation between each of the indoor units and between the indoor and outdoor units Flexible cord x 3 core Not included in the unit Unit A Applicable connecting tube kit CZ 3F type Unit Maximum pipe length 25 m Unit B Maximum pipe length 25 m Total maximum pipe length 50 m Piping size Indoor ID amp Outdoor Refrige OD ID OD units Possible rant Zei i connection Combination Patterns Gas i GR wire size Outdoor OD CU 2E18NBK Indoor ID 2 UNITS OF CS E9NKKW Outdoor OD CU 2E18NBK 208 230V Indoor ID 2 UNITS R410A 23 8 S 60 Hz OF CS E12NKKW 9 52 20 Outdoor OD MOP 25A CU 2E18NBK Indoor ID 1 UNIT OF CS E9NKKW 1 UNIT OF CS E12NKKW AWG12 AWFG16 Example If total piping length of all installed indoor units is at 22 5m the quantity of additional refrigerant should be 50 g 22 5 20 mx 20 g m 50g 15 10 Installation Instruction 10 1 Select The Best Location 10 1 1 Outdoor Unit If an awning is built over the unit to prevent direct Uni Diagram sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any a
8. 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 50 e Heating Characteristic Condition Room temperature 20 DBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fh C Indoor unit capacity Heating 2 8 3 2 CS E9NKKW CS E12NKKW service mode frequency 64Hz 208 230 E9NKKW 208 230 E12NKKW 48 000 46 000 44 000 42 000 40 000 38 000 36 000 34 000 32 000 30 000 28 000 Outlet Air Temperature 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C 208 230 8 000 7 000 6 000 5 000 Heating Capacity KW 4 000 3 000 15 13 11 9 7 5 3 4 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 10 000 9 500 9 000 8 500 8 000 7 500 7 000 6 500 6 000 Current A 15 13 11 9 7 5 3 A 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 1 100 1 000 0 900 0 800 0 700 0 600 0 500 0 400 0 300 Gas Side Piping Pressure MPa 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 51 e Piping Length Characteristic Heating Condition Room temperature 20 C DBT Oper
9. Heat e This control detect indoor pipe temperature and perform the compressor frequency restriction during heating operation Comp stop Comp freq restricted 64 53 Comp freq maintain 48 Comp freq free ID Pipe temp e This control detect outdoor ambient temperature and perform the fan speed adjustment during heating operation RPM controlled 12 C 10 RPM free OD temp 13 7 Extreme Low Temperature Compressor low pressure protection control Heat e This control is to prevent low pressure drops too low during extremely low outdoor ambient temperature to improve the compressor reliability e 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 Comp freq free 21 C 23 Comp freq 3 C restricted 24 C SE 26 Zone 1 Comp freq stop OD temp OD pipe 24 13 8 Deice Control e When outdoor pipe temperature and outdoor air temperature is low deice operation starts where indoor fan motor and outdoor fan motor stop indoor unit horizontal vane close and operation LED blink with compressor ON 13 9 Time Delay Safety Control Restart Control e The compressor will not restart within three minutes after compressor is stopped e This control is not applicable if the power supply reset or after deice condition 13 10 30 seconds Force Operat
10. fan motor control will be adjusted according to figure below RPM free 15 13 RPM controlled 13 C Stopped OD temp 11 1 2 Annual Cooling control e This control is to enable cooling operation when outdoor ambient temperature is low e Control start conditions o Cooling operation is activated with compressor ON o Outdoor ambient temperature is less than 15 e Control contents o When the above conditions are fulfilled based on outdoor pipe temperature the outdoor fan motor will operate according to figure below 34 33 24 RPM unchanged 23 RPM down 19 C 18 Stopped OD Pipe temp Toimprove the judgment accuracy during annual cooling control outdoor ambient temperature sampling for 2 minutes will be activated every 35 minutes under designated fan speed e Control stop conditions o When either one of the start conditions are not complied 20 11 2 Heating Operation 11 2 4 Outdoor fan control When heating operation is enabled based on outdoor ambient temperature fan motor control will be adjusted according to figure below RPM controlled 14 12 RPM free OD temp To improve the judgment accuracy indoor room temperature sampling starts when any indoor unit has stopped capability supplied heating thermo off during heating operation with compressor ON outdoor unit will send signal to all thermo off indoor units to ON fan motor and g
11. 20000 Running Current A 7 6 6 9 i Power Input Cooling Operation Electrical kW 1 45 0 39 1 84 Data EER W W 3 37 5 38 3 18 BTU hW 11 50 18 45 10 85 Sound Pressure Level dB A 48 Sound Power Level dB 62 Capacity kW 5 94 2 11 7 20 20200 7200 24600 Running Current A 9 0 8 1 Electrical Power Input kW 1 85 0 42 2 29 Heating Operation Data COP W W 3 21 5 02 3 14 BTU hW 10 90 17 15 10 75 Sound Pressure Level dB A 49 Sound Power Level dB 63 Maximum Current Starting Current Minimum Circuit Ampacity Dimension mm inch mm inch mm inch 795 31 5 16 875 95 34 15 32 3 3 4 320 12 5 8 Net Weight kg Ib 69 152 Connection cable 3 1 Earth 21 5 mm Pipe Length Range 1 room m ft 3 25 9 8 82 0 Maximum Pipe Length Total Room m ft 50 164 0 Liquid Side mm inch 6 35 1 4 Refrigerant Pipe Diameter Gas Side mm inch 9 52 3 8 Type Hermetic Motor Rotary Compressor Motor Type DC Brushless 4 poles Rated Output 1 30k Type Propeller Fan Air Circulation Motor Type DC Brushless 8 poles Rated Output 60 Fan Speed High 570 Type Plate fin configuration forced draft type Tube Material
12. 5 000 Hn 1 100 A 5 13 1 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 1 000 0 900 LT 0 800 0 700 0 600 0 500 0 400 0 300 15 3 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 39 e Heating Characteristic Condition Room temperature Operation condition 20 C DBT High fan speed Piping Length 7 5m Compressor Freq Fh Heating overload protection 44Hz Outside air 24 B Indoor unit capacity Heating 3 2 CS E12NKKW service mode frequency 52Hz 43 000 41 000 Outlet Air Temperature 33 000 39 000 37 000 35 000 e 208 m 230 31 000 15 13 11 9 7 5 3 4 1 3 5 7 9 11 13 15 17 19 21 23 25 5 000 4 500 3 500 Heating Capacity kW 3 000 2 500 2 000 8 000 7 500 7 000 6 500 Current A 6 000 5 500 5 000 0 900 0 800 0 700 0 600 0 500 Gas Side Piping Pressure MPa 0 400 0 300 4 000 Outdoor Air Temperature C d 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature e H VT L
13. 6200 11200 850 390 1020 4 5 4 1 1 1 10900 6300 12800 1000 390 1230 5 2 4 7 1 3 2 8 2 8 Two room Operation 28 32 3 2 3 2 Cooling 16700 7100 20000 1450 390 1920 7 6 6 9 1 1 1 1 16700 7200 20000 1450 390 1870 7 6 6 9 1 1 1 3 16700 7200 20000 1450 Specifications are subject to change without notice for further improvement Outdoor Unit Indoor unit combination Operation Operation Class kW Mode Heating Capacity KW 390 1840 7 6 Input Power W Rating Min Max Rating Min Max 6 9 Current A 208V 1 3 1 3 Current A 230V CU 2E18NBK Outdoor Unit One room 2 8 Operation 3 2 Heating 4 02 1 87 4 61 1150 440 1450 5 9 5 4 4 50 1 91 5 12 1300 440 1630 6 6 6 0 2 8 2 8 Two room Operation 2 8 3 2 3 2 3 2 Indoor unit combination Heating Operation Operation Class kW Mode 5 94 2 09 7 20 1850 420 2310 9 0 8 1 5 94 2 10 7 20 2 11 7 20 Heating Capacity BTU h 1850 420 2290 420 2290 Input Power W Rating Min Max Rating Min Max 9 0 Current A 208V 8 1 Current A 230V CU 2E18NBK One room 2 8 Operation 3 2 Heating 13700 6400 15700 1150 440 1450 5 9 5 4 15300 6
14. Control content o Compressor OFF during this control F91 is memorized in EEPROM o If the above conditions happen 2 times within 60 minutes indoor units Timer LED will blinks F91 is indicated at all indoor units 13 15 Valve close detection control e This control detects 3 way valve close condition to prevent damage to refrigerant cycle e Start conditions o For all connected indoor units if Indoor intake temperature indoor piping temperature are between 2 C and 2 C continuously for 5 minutes after compressor ON at first cooling operation o first cooling operation is defined as cooling operation is ON for less than 8 minutes after new installation or after pump down e Control content o During this control compressor stop indoor units Timer LED will blink F91 is indicated at indoor units e Error reset can be done by power supply reset or reset by using remote control 13 16 Compressor discharge high pressure protection control e This control protect by using high pressure switch during operation e Start conditions o High pressure switch is activated from normally close to open when outdoor operation mode is cooling or heating during compressor running e Control 1 content o Compressor stop when high pressure switch is opened and restart after high pressure switch closed If this condition happen 4 times within 30 minutes F94 is indicated o After 30 minutes counter is reset if this cond
15. L x w Outdoor Air Temperature 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 ER wa Outdoor Air Temperature C 40 5 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 e Piping Length Characteristic Heating Condition Room temperature 20 DBT Operation condition High fan speed Outdoor temperature 8 3 C DBT 6 1 C WBT Compressor Freq Fh A Indoor unit capacity Heating 2 8 CS E9NKKW service mode frequency 52Hz e 208 230 44 600 44 100 43 600 43 100 42 600 42 100 Outlet Air Temperature 41 600 rp 41 100 gt 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 4 200 4 100 S i 4 000 3 900 Heating Capacity kW 3 800 3 700 mtl 3 600 LL Lt LL 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 747 0 746 0 745 Gas Side Piping Pressure MPa 0 744 0 743 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 7 900 7 700 7 500 7 300 Ier qe CM Current A 7 100 6 900
16. first the operation is continued In the room where the operation button for cooling was pressed afterward the operation lamp of the indoor unit blinks where the attempt is made to establish the cooling operation Its fan is stopped and the air does not discharged 4 Operation mode priority control o operation mode designated first by the indoor unit has priority o Ifthe priority indoor unit stops operation or initiates the e ion operation the priority is transferred to other indoor units 22 Waiting denotes the standby status in which the operation lamp LED blinks ON for 2 5 sec and OFF for 0 5 sec and the fan is stopped Non Priority Unit 2nd ON A ROOM Cooling Soft Dry Staind See oR 6 D C Pd ES Pu PP EXE n the e ion mode priority is transferred to a non priority unit Note C Cooling operation mode D Soft Dry operation mode H Heating operation mode E e ion operation mode 13 Protection Control 13 1 Freeze Prevention control Cool e When received freeze prevention signal from indoor unit the compressor frequency changes according to indoor heat exchanger temperature e When indoor unit request capability OFF due to freeze condition immediately the capability supply to targeted indoor unit stops 13 2 Dew Prevention control Cool e When received dew prevention signal from indoor unit the compressor frequency changes according to indoor inta
17. least two indoor units must be connected 2 The total nominal cooling capacity of indoor untis that will be connected to outdoor unit must be within connectable capacity range of indoor unit as shown in the table above Example The indoor units combination below is possible to connect to CU 2E18NBK Total nominal capacity of indoor units is between 5 6 kW to 6 4 kW 1 Two CS E9NKKW only Total nominal cooling capacity is 5 6 KW 2 One CS E9NKKW and one CS E12NKKW Total nominal cooling capacity is 6 0 kW Specifications are subject to change without notice for further improvement Indoor unit combination Cooling Capacity KW Input Power W Moisture Current A Current A Removal Outdoor Unit Mod 208V 230V Operation Class KW ode Rating Min Max Rating Min Max bos One room 2 8 2 82 1 81 3 27 850 390 1020 4 5 4 1 0 5 Cooling Operation 3 2 3 21 1 85 3 75 1000 390 1230 5 2 4 7 0 6 CU 2E18NBK Outdoor Unit Two room Operation Indoor unit combination Operation Class kW Cooling Operation 2 09 5 86 390 1920 2 10 5 86 390 1870 Cooling Capacity BTU h 2 10 5 86 Input Power W 390 1840 Mode Rating Min Max Rating Min Max 208V Current A Current A 230V Moisture Removal Volume CU 2E18NBK One room 2 8 Operation 3 2 Cooling 9600
18. the whole wiring unit 3 Do not wrench the fasten terminal Pull it out or insert it straightly 4 Engage dealer or specialist for installation and servicing If installation or servicing done by the user is defective it will cause water leakage electrical shock or fire 5 Install according to this installation instructions strictly If installation is defective it will cause water leakage electric shock or fire 6 Use the attached accessories parts and specified parts for installation and servicing Otherwise it will cause the set to fall water leakage fire or electrical shock 7 nstall at a strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 8 For electrical work follow the local national wiring standard regulation and the installation instruction An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock or fire 9 This equipment is strongly recommended to install with Earth Leakage Circuit Breaker ELCB or Residual Current Device RCD Otherwise it may cause electrical shock and fire in case equipment breakdown or insulation breakdown 10 Do not use joint cable for indoor outdoor connection cable Use the specified indoor outdoor connection cable refer to installation instruction CONNECT THE CABLE TO THE INDO
19. total piping length of all indoor unit 50 m or less Outdoor unit located on upper side 15 less Height difference between indoor and outdoor unit Outdoor unit located otherwise 7 5 m or less Outdoor unit located on upper side 7 5 less Height difference between indoor unit Outdoor unit located otherwise 15 mor less Outdoor unit located Outdoor unit located Indoor unit on upper side otherwise Outdoor unit Outdoor unit SIE Indoor unit Indoor unit x Outdoor unit 16 Outdoor Unit Installation Guidelines e Where a wall or other obstacle is in the path of outdoor unit s intake or exhaust airflow follow the installation guidelines below e For any of the below installation patterns the wall height on the exhaust side should be 1200mm or less Wall facing one side More than 100 1000 Walls facing two side Walls facing three side More thi 100 More than 1000 More More than 100 10 2 Install The Outdoor Unit e After selecting the best location start installation to Indoor Outdoor Unit Installation Diagram gt 11200 100 More man 100 More than 1
20. 00 C 7 Power supply connection to the air conditioner Power supply cord shall be UL listed or CSA approved 4 conductor with minimum AWG12 wires Power supply point should be in an easily accessible place for power disconnection in case of emergency In some countries permanent connection of this air conditioner to the power supply is prohibited Fix power supply connection to a circuit breaker for the permanent connection Use NRTL approved fuse or circuit breaker rating refers to name plate for the permanent connection 8 Do notrelease refrigerant during piping work for installation servicing reinstallation and during repairing a refrigerant parts Take care of the liquid refrigerant it may cause frostbite Q 9 Installation or servicing work It may need two people to carry out the installation or servicing work 10 Do not install this appliance in a laundry room or other location where water may drip from the ceiling etc S 11 Do not sit or step on the unit you may fall down accidentally Q 12 Do not touch the sharp aluminium fins or edges of metal parts Q If you are required to handle sharp parts during installation or servicing please wear hand glove Sharp parts may cause injury 2 Specifications 2 1 CU 2E18NBK OUTDOOR UNIT Indoor Unit Combination 3 2kW 3 2kW Power Source 1 Phase 208 230V 60Hz Power supply from outdoor unit Capacity 4 89 2 10 5 86 16700 7200
21. 009 More than 300 Side view Top view Top view Unit mm o mila nin 1 Fix the unit on concrete or rigid frame firmly IF n and horizontally by bolt nut 10 mm L ES 2 Wheninstalling at roof please consider strong wind and earthquake Please fasten the installation stand firmly with bolt or nails 10 3 Connect the Piping e Remove the control board cover resin from the 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 then tighten with torque wrench to the specified torque as stated in the table Screws Control Board Cover resin Screw E Liquid side Gas side Male side Model CU 2b18 613 mm 131 mm 16 mm Do not over tighten over tightening may cause gas leakage Piping size Torque 1 4 6 35 mm 18 N m 1 8 kgf m 3 8 9 52 mm 42 Nem 4 3 kgf m 1 2 12 7 mm 55 Nem 5 6 kgf m 5 8 15 88 mm 65 Nem 6 6 kgf m 3 4 19 05 mm 100 Nem 10 2 kgf m Flare Nut D Connection Pipe 2 Torque Wrench for Flare Nut Flare Nut Pik a CT rures Conn
22. 100 5 900 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 48 e Heating Characteristic Condition Room temperature 20 DBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fh A Indoor unit capacity Heating 2 8 2 8 CS E9NKKW CS E9NKKW service mode frequency 65Hz Outlet Air Temperature Heating 49 000 47 000 45 000 43 000 41 000 39 000 37 000 35 000 33 000 31 000 29 000 8 100 7 100 e 208 m 230 LAT 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 6 100 5 100 LAT Capacity kW Current A 4 100 3 100 ec 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 10 800 10 300 9 800 9 300 8 800 8 300 7 800 7 300 6 800 6 300 1 100 1 000 0 900 Outdoor Air Temperature C T BEBE MP L 7 LL F r 15 13 11 9 7 5 3 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature Gas Side Piping Pressure MPa 0 800 0 700 0 600 0 500 0 400 0 300 AT 15
23. 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 970 0 950 0 930 0 910 P r Gas Side Piping Pressure MPa 0 890 0 870 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 4 700 4 600 LT 4 500 4 400 Current A 4 300 4 200 4 100 4 000 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 38 e Heating Characteristic Condition Room temperature 20 DBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fh Heating overload protection 38Hz Outside air 24 A Indoor unit capacity Heating 2 8 CS E9NKKW service mode frequency 52Hz Outlet Air Temperature Heating 45 000 43 000 41 000 39 000 37 000 35 000 33 000 31 000 e 208 m 230 EE 15 13 4 300 3 800 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 3 300 2 800 rau Current Gas Side Piping Capacity kW A Pressure MPa 2 300 1 800 e 7 500 5 13 1 9 7 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature 7 000 j 6 500 6 000 vas 5 500 ex
24. 36 Outdoor gas Continuous Heating Outdoor gas pipe Outdoor gas pipe pipe for 5s protection temperature sensor temperature temperature sensor abnormality operation only open or short circuit sensor lead wire and connector 29 Diagnosis display Abnormality or protection control Outdoor liquid pipe temperature sensor abnormality Outdoor high pressure sensor abnormality LED 6 LED 5 LED 4 LED 3 LED 2 LED 1 Abnormality judgement Protection operation Cooling protection operation only Problem Outdoor liquid pipe temperature sensor open or short circuit High pressure sensor open circuit during compressor stop Check location Outdoor liquid pipe temperature sensor lead wire and connector High pressure sensor Lead wire and connector Outdoor fan motor mechanism lock happen within 30 minutes Outdoor fan motor lock or feedback abnormal Outdoor fan motor lead wire and connector Fan motor lock or block Indoor high pressure protection Indoor high pressure protection Heating Check indoor heat exchanger Air filter dirty Air circulation short circuit Indoor operating unit freeze protection Indoor freeze protection Cooling Check indoor heat exchanger Air filter dirty Air circulation short circuit 4 way valve switching abnormality 4 times happen within 30 minutes 4 way valve
25. 4 36 38 40 42 44 46 Outdoor Air Temperature 208 230 6 100 5 600 5 100 Cooling Capacity KW 4 600 4 100 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature C 8 700 7 700 6 700 Current A 5 700 4 700 3 700 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 1 100 1 080 1 060 1 040 Gas Side Piping Pressure MPa 1 020 1 000 0 980 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 45 e Piping Length Characteristic Cooling Condition Room temperature 27 DBT 19 C WBT Operation condition High fan speed Outdoor temperature 35 C DBT Compressor Freq Fc A Indoor unit capacity Cooling 2 8 2 8 CS E9NKKW CS E9NKKW service mode frequency 48Hz e 208 m 230 15 900 15 700 15 500 TT 15 300 Outlet Air Temperature 15 100 14 900 M 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 5 300 5 200 N 5 100 5 000 SE 4 900 4 800 4 700 4 600 044 Run P 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Cooling Capacity kW Piping Leng
26. 4 5 6 7 8 9 101112 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 7 100 6 900 As 6 700 6 500 Current A 6 300 a 6 100 5900 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length 47 e Piping Length Characteristic Cooling Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Outdoor temperature 35 DBT Compressor Freq Fc C Indoor unit capacity Cooling 2 8 3 2 CS E9NKKW CS E12NKKW service mode frequency 47Hz 208 230 E9NKKW 208 230 E12NKKW 16 000 15 800 15 600 15 400 15 200 Outlet Air Temperature 15 000 14800 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 208 230 5 200 5 100 5 000 4 900 4 800 Cooling Capacity KW 4 700 4 600 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 1 060 1040 S L 1020 22 29 UC 1000 0 980 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 7 300 7 100 6 900 6 700 Current A 6 500 6 300 6
27. 43 12 ANTI VIBRATION BUSHING 3 CWH50055 13 NUT COMPRESSOR 3 CWH561049 14 CRANKCASE HEATER 1 CWA341067 15 ACCUMULATOR 1 CWB131050 17 3 WAY VALVE LIQUID 2 CWBO011601 18 3 WAY VALVE GAS 2 CWB011602 19 HOLDER COUPLING 1 CWH351170 20 STRAINER 1 CWB111062 21 STRAINER 2 CWB111063 22 EXPANSION VALVE 2 CWB051029 23 4 WAYS VALVE 1 CWB001057 24 DISCHARGE MUFFLER 1 CWB121042 25 PRESSURE SWITCH 1 CWA101007 26 FLARE NUT 1 4 4 CWT251030 27 FLARE NUT 3 8 4 CWT251031 28 SOUND PROOF MATERIAL 1 CWG302246 29 SOUND PROOF MATERIAL 1 CWG302520 30 SOUND PROOF MATERIAL 1 CWG302521 31 SOUND PROOF MATERIAL 1 CWG302522 32 SENSOR COMPLETE 1 CWA50C2722 33 V COIL COMPLETE 4 WAY VALVE 1 CWA43C2392 34 V COIL COMPLETE EXPAND VALVE WHITE 1 CWA43C2381 35 V COIL COMPLETE EXPAND VALVE YELLOW 1 CWA43C2382 38 SENSOR COMPLETE DEF 1 CWA50C2723 39 SENSOR COMPLETE 1 CWA50C2710 40 SENSOR COMPLETE CN TH4 1 CWAS0C2691 41 SENSOR COMPLETE CN TH3 1 CWAS0C2692 42 HOLDER SENSOR 3 CWH32074 43 ELECTRONIC CONTROLLER MAIN 1 CWAT73C4496R 44 ELECTRONIC CONT NOISE FILTER 1 CWA745975 45 ELECTRONIC CONTROLLER DISPLAY 1 CWA746115 47 REACTOR 1 G0C403J00001 48 TERMINAL BOARD ASS Y L 1 CWA28K1195 49 TERMINAL BOARD ASS Y 1 2 3 2 CWA28K1196 50 CONTROL BOARD COVER TOP 1 CWH131333 51 CONTROL BOARD COVER 1 CWH131364 52 CABINET TOP PLATE 1 CWE031131A 53 CONTROL BOARD COVER COMPLETE 1 CWH13C1209 54 CABINET FR
28. 5 Piping Length m 208 230 6 100 6 000 5 900 Heating Capacity KW 5 800 5 700 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 718 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Gas Side Piping Pressure MPa o 3 o 0 715 0 714 Piping Length m 8 400 8 200 8 000 7 800 Current A 7 600 7 400 7 200 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 54 Exploded View and Replacement Parts List 18 The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note 55 DESCRIPTION amp NAME Q TY CU 2E18NBK REMARK 1 BASE PAN ASS Y 1 CWD52K1239A 2 SOUND PROOF BOARD 1 CWH151230 3 FAN MOTOR BRACKET 1 CWD541127 4 SCREW FAN MOTOR BRACKET 3 CWH551217 5 CONDENSER COMPLETE 1 CWB32C2905 6 FAN MOTOR 1 EHDS80CAC 7 SCREW FAN MOTOR 4 CWH551323 8 PROPELLER FAN 1 CWHOOK1006 9 NUT PROPELLER FAN 1 CWH561038J 10 COMPRESSOR 1 5KD184XAB21 11 PACKING 3 CWB810
29. 500 17500 1300 440 1630 6 6 6 0 2 8 2 8 Two room Operation 28 32 Heating 3 2 3 2 20200 7100 24600 1850 420 2310 9 0 8 1 20200 7200 24600 1850 420 2290 9 0 8 1 20200 7200 24600 Specifications are subject to change without notice for further improvement 1850 420 2290 9 0 8 1 3 Dimensions Space necessary for Top View installation SS 10 cm 100 cm 3 N Anchor Bolt Pitch 360 5 x 613 lt Side View gt lt Side View gt 32 4 Refrigeration Cycle Diagram INDOOR A OUTDOOR PIPE EXPANSION TEMP STRAINER VALVE A p 1 LICUID SIDE SENSOR Q I SWAY VALVE P 4 INTAKE TEMP SENSOR 555 PIPE TEMP TEMP SENSOR SENSOR LIQUID SIDE SWAY VALVE HEAT GAS SIDE STRAINER EXPANSION EXCHANGER IWAY VALVE VALVE B EVAPORATOR VALVE STRAINER c CONDENSCR DISCH TEMP PIPE TEMP SENSOR DEF SENSOR INTAKE TEMP INTAKE SENSOR TEMP PIPE SENSOR TEMP I SENSOR HEAT EXCHANGER GAS SIDE CONDENSOR HEAT gt lt EXCHANGER 2 WAY VALVE EVAPORATOR l INDOOR B PIPE TEMP SENSOR PIPE SENSOR VALVE COMPRESSOR COOLING HEATING gt 5 6 Wiring Connec
30. 8 m 230 T 26 28 30 32 34 36 38 40 42 15 400 14 900 14 400 13 900 13 400 12 900 12 400 11 900 44 46 Outdoor Air Temperature 4 200 4 000 3 800 3 600 3 400 3 200 3 000 2 800 2 600 20 22 24 26 28 30 32 34 36 38 40 42 Outdoor Air Temperature C 100 5 600 100 4 600 100 3 600 100 2 600 26 28 30 32 34 36 ep 22 24 38 40 42 44 46 Outdoor Air Temperature C 1 000 0 980 0 960 0 940 eert 16 18 20 22 24 26 28 0 920 0 900 0 880 T T T d 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature C 36 e Piping Length Characteristic Cooling Condition Room temperature 27 C DBT 19 C WBT Operation condition High fan speed Outdoor temperature 35 C DBT Compressor Freq Fc A Indoor unit capacity Cooling 2 8 CS E9NKKW service mode frequency 28Hz e 208 m 230 15 400 15 200 15 000 14 800 14 600 A 14 400 Outlet Air Temperature 14 200 7 i 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 3 000 2 900 NL 2 800
31. Characteristic Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fc A Indoor unit capacity Cooling 2 8 2 8 CS E9NKKW CS E9NKKW service mode frequency 48Hz e 208 230 5 800 Lp 5 300 4 800 Outlet Air Temperature 4 300 3 800 32 34 36 38 Outdoor Air Temperature C 6 600 6 100 40 42 44 46 5 600 Cooling 5 100 Capacity kW 4 600 4 100 fe 32 34 36 38 Outdoor Air Temperature 8 300 40 42 44 46 7 800 7 300 gt 6 800 6 300 za 5 800 Current 5 300 4 800 4 300 3 800 t t t 20 22 24 26 28 30 32 34 36 38 Outdoor Air Temperature C 40 42 44 46 1 070 1 050 1 030 1 010 Gas Side Piping Pressure MPa 0 990 0 970 Vr 16 18 20 22 24 26 28 30 32 34 36 38 Outdoor Air Temperature 43 40 42 44 46 e Cooling Characteristic Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fc B Indoor unit capacity Cooling 3 2 3 2 CS E12NKKW CS E12NKKW service mode freq
32. Heat Exchanger Fin Material Copper Aluminum Row Stage 2 36 FPI 19 Unit OUTDOOR UNIT Air Volume High m min f amp min 37 2 1313 Refrigerant Control Device Expansion Valve Refrigerant Oil FV50S Refrigerant R410A g oz 1 92k 67 8 Dry Bulb Wet Bulb Maximum C F 32 89 6 23 73 4 Cooling Minimum C F 16 60 8 11 51 8 Indoor Operation Range Maximum C F 30 86 0 Heating Minimum C F 16 60 8 Maximum 43 109 4 26 78 8 Cooling Minimum 16 60 8 11 51 8 Outdoor Operation Range Maximum 24 75 2 18 64 4 Heating Minimum 15 5 0 16 3 2 Note Specifications are subject to change without notice for further improvement e Multi split combination possibility o single outdoor unit enables air conditioning of up to two separate rooms for CU 2E18NBK Outdoor Unit CU 2E18NBK A 2 8 kW CS E9NKKW 3 2 kW CS E12NKKW Capacity range of connectable indoor units From 5 6 kW to 6 4 kW 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 Piping Length Additional gas amount over chargeless length g m oz ft 20 0 2 Note Available Remarks for CU 2E18NBK 1 At
33. L a ymd 11 it Diagram T Electronic C 3I3dWNO 3 3190 2 313109 BOSN3S HOSN3S m BOSN3S 2 8 m 5 Dien gNVdX3 Den AYM 9 35 55 702 102 H31V3H 102 4 ma ER 5 UINDWWOUISNI OIINOVW OUL03T3 3SVONNVHO OHI3NOVHCOH10313 a Z ES d a gt gt 25 ag du L SE S m 3 3 aM NOTI3A He L L LHM 3Q0N NO MIA HITIOYLNOO 0273 LHM JHM 145102 28510 9 199 9990909999099 0 ALIOD HOSNAS 8 UOSN3S AINON m V YOSN3S did AINON NS BUNSSAUd IMSEN 805 TOYLNOI 03412 22 T i NL WODNO ch 1 26 KlddNS HIMOd 3OVLIOAMO1 4 iced te eege 352 m El C UT IHM 1HWOV 3H00 3409 2 eU m rn db nje s n 1 7 TVNIWHSI dWOO 1 5 9 99 HOLDANNOO N33HOIMOTISA NNO A NES wal pra 8 n ama Ke YOLOYJH BA 1013 d SM RA Howse ama a HOLIVIH M MOTIJA Sv 100 if e 330 NO SOW ALIHOIHd SMS 440 mx NO 3AVSH3NOd PMS EMS HIHI tool yu zS NS 1531 40 EN TET RE re eee
34. ONT PLATE CO 1 CWEO06K1071 55 CABINET SIDE PLATE L 1 CWE041489A 56 CABINET SIDE PLATE 1 CWE041499A 57 WIRE NET 1 CWD041128A 58 HANDLE 1 CWE161010 60 INSTALLATION INSTRUCTION 1 CWF615175 56 61 INSTALLATION INSTRUCTION 1 CWF615176 74 ACCESSORY CO DRAIN ELBOW 1 CWG87C900 76 NUT TERMINAL COVER 2 CWH7080300J 77 TERMINAL COVER 1 CWH171035 78 TUBE ASS Y LIQUID 1 1 CWT026284 79 TUBE ASS Y LIQUID 2 1 CWT026285 80 MANIFOLD TUBE ASS Y GAS 1 CWTO07K1522 81 CLIP FOR SENSOR HOLDER 4 CWH711010 82 BAG 1 CWG861154 83 BASE BOARD COMPLETE 1 CWG62C1081 84 SHOCK ABSORBER RIGHT 1 CWG712879 85 SHOCK ABSORBER LEFT 1 CWG712880 86 C C CASE 1 CWG565609 Note All parts are supplied from PHAAM Malaysia Vendor Code 00029488 marked parts are recommended to be kept in stock 57 PHAAM Printed in Malaysia FB1111 0
35. OR UNIT and connect tightly for indoor outdoor connection Clamp the cable so that no external force will be acted on the terminal If connecting or fixing is not perfect it will cause heat up or fire at the connection 11 Wire routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed perfectly it will cause heat up or fire at the connection point of terminal fire or electrical shock 12 When install or relocate air conditioner do not let any substance other than the specified refrigerant eg air etc mix into refrigeration cycle piping Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in explosion injury etc 13 Do not install outdoor unit near handrail of veranda When installing air conditioner unit at veranda of high rise building child may climb up to outdoor unit and cross over the handrail and causing accident 14 This equipment must be properly earthed Earth line must not be connected to gas pipe water pipe earth of lightning rod and telephone Otherwise it may cause electric shock in case equipment breakdown or insulation breakdown Q 15 Keep away from small children the thin film may cling to nose and mouth and prevent breathing Q 16 Do not use unspecified cord modified cord joint cord or extension cord for power supply cord Do not share the single outlet with other electrical appliances Poor contact poor insulation or over curren
36. Switching abnormal 4 way valve Lead wire and connector Indoor standby units freezing abnormality Power factor correction PFC circuit protection 3 times happen within 40 minutes 4 times happen within 10 minutes Wrong wiring and connecting pipe expansion valve leakage indoor heat exchanger sensor open circuit Power factor correction circuit abnormal Check indoor outdoor connection wire and pipe Indoor heat exchanger sensor lead wire and connector Expansion valve lead wire and connector Outdoor PCB faulty Refrigeration cycle abnormality 2 times happen within Refrigeration cycle abnormal Insufficient refrigerant or valve close F95 Compressor abnormal revolution Compressor discharge pressure overshoot protection Outdoor cooling high pressure protection happen within happen within 30 minutes 4 times happen within 20 minutes Compressor abnormal revolution Compressor discharge pressure overshoot Cooling high pressure protection Power transistor module faulty or compressor lock Check refrigeration system Check refrigeration system Outdoor air circuit 30 Diagnosis display Abnormality or protection control LED 6 LED 5 LED 4 LED 3 LED2 LED 1 Abnormality judgement Protection operation Problem Check location Power 4 times Power trans
37. ate the possibility of the correction as shown in the table below Wiring automatic correct example LED 2 3 4 5 6 Message Terminal block Room A B All flashing Automatic correction impossible LED2 4 6 and LED 3 5 Wiring check in progress 2 alternatively flashing 9 prog R eens S rom A to the o Flashing ong Automatic correction completed to the living bedroom another room Other than above Unit has abnormality NOTE 4 e If automatic correct is impossible check the J Wiring error check indoor unit wiring and piping manually LED lighting sequence after a wiring correction Order of LED flashing 3 gt 2 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 5 C or unit has abnormality wiring operation will not start 3 After wiring check operation is complete LED indication will illuminated until normal operation starts 4 Follow the product diagnosis procedure 5 When LED 1 only illuminate indicates that outdoor unit is operating normally 14 1 4 Power Save Mode e Power Save Mode can be enabled by pushing POWER SAVE switch SW4 to ON before power supply ON e When Power Save Mode is ON the unit can be operate at lower running current where the breaker capacity not achieve the re
38. ation condition High fan speed Outdoor temperature 8 3 C DBT 6 1 C WBT Compressor Freq Fh A Indoor unit capacity Heating 2 8 2 8 CS E9NKKW CS E9NKKW service mode frequency 65Hz e 208 230 36 100 36 050 36 000 35 950 Outlet Air Temperature 35 900 35 850 3 4 5 6 7 8 9 101112 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 6 100 as Sam 5 900 Heating Capacity kW 5 800 TTC 5 700 Ait r 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length 0 708 0 707 0 706 Gas Side Piping Pressure MPa 0 705 0 704 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 8 600 F 8 400 8 200 Current A 8 000 7 800 oes ct i 7 600 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 52 e Piping Length Characteristic Heating Condition Room temperature 20 DBT Operation condition High fan speed Outdoor temperature 8 3 C DBT 6 1 C WBT Compressor Freq Fh B Indoor unit capacity Heating 3 2 3 2 CS E12NKKW CS E12NKKW service mode frequenc
39. compressor will stop o Ifthe DC peak current detected within 30 seconds after operation starts compressor will restart after 1 minute o If the DC peak current detected 30 seconds or more after operation starts compressor will restart after 2 minutes o Within 30 seconds after compressor restarts if the DC peak current is exceeded set value continuously for 7 times all indoor and outdoor relays will be cut off F99 is indicated e Error reset can be done by power supply reset 25 13 13 Compressor Protection Control Gas leak detection control 1 e Control start conditions o For5 minutes the compressor continuously operates and total current is low o During Cooling or Soft Dry operation Indoor intake temperature indoor piping temperature is below 4 o During Heating operation Indoor pipe temperature indoor intake temperature is below 3 o during deice control o Compressor ON with maximum frequency e Control content o Compressor stops and restart after 3 minutes o If the conditions above happen 4 times within 60 minutes the unit will stop operation F91 is indicated 13 14 Compressor Protection Control Gas leak detection control 2 e This control detect gas leakage condition to prevent compressor damage e Control start condition o All connected indoor units capability supply ON o Compressor ON with maximum frequency o Not during annual cooling o Compressor discharge temperature high e
40. e 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 16 1 2 Remove the Control Board Cover and Particular Plates 3 Remove the control board cover remove 3 screws 4 Remove the particular plate remove 2 screws 5 Remove the particular plate remove 2 screws 32 16 1 3 Removing the Control P C Board 6 Remove the drip proof cover 7 Disconnect the connectors lead wires of the compressor sensor and others 8 Remove the screw 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 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 33 Disconnect the fan motor connector from the control P C Board Loosen the 4 fan motor mounting screws then remove the fan motor 34 17 Technical Data 17 1 Operation Characteristics 17 1 1 One Indoor Unit Operation e Cooling Characteristic Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Pipin
41. ection Pipe 2 Torque Wrench for Flare Nut 17 Female side Applicable to Liquid and Gas side of CS E9 CS E12 ae EN EC 360 5 mm 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 flare after inserting the flare nut onto the copper pipes Pipe Handle Bar 0 0 5 mm E improper flaring 2 Reamer Bar ELE Yoke AR R Core lf J Tat 1 vo Copper pipe i C gt PAS Inclined Surface Cracked Uneven Point down X Clamp handle Red arrow mark damaged thickness 1 To cut 2 To remove burrs 3 To flare When properly flared the internal surface of the flare will evenly shine and be of even thickness Since the flare part comes into contact with the connections carefully check the flare finish 10 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 1 Connect a charging hose with a push pin to the Low side of a charging set and the service Indoor tnt port of the 3 way valve o Be sure to connect the end of the charging hose with the push pin to the service port 2 Connect the center hose of the charging set to a vacuum pump 3 Turn on the power switch of the vacuum
42. ed View and Replacement Parts 55 1 Safety Precautions Read the following SAFETY PRECAUTIONS carefully before perform any servicing Electrical work must be installed or serviced by a licensed electrician Be sure to use the correct rating of the power plug and main circuit for the model installed The caution items stated here must be followed because these important contents are related to safety The meaning of each indication used is as below Incorrect installation or servicing due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications AN WARNING IThis indication shows the possibility of causing death or serious injury A CAUTION This indication shows the possibility of causing injury or damage to properties The items to be followed are classified by the symbols Q This symbol denotes item that is PROHIBITED from doing Carry out test run to confirm that no abnormality occurs after the servicing Then explain to user the operation care and maintenance as stated in instructions Please remind the customer to keep the operating instructions for future reference AN WARNING 1 Do not modify the machine part material during repairing service 2 If wiring unit is supplied as repairing part do not repair or connect the wire even only partial wire break Exchange
43. et room temperature sample To prevent discharge temperature drop at indoor units which is ON when sampling the room temperature of heating thermo off units the outdoor fan speed will be adjusted accordingly However if indoor room temperature is high compare to remote control setting temperature sampling of corresponding indoor unit will be cancelled 11 2 2 Powerful Operation 1 During cooling operation this control is to concentrate outdoor unit capability to the powerful operation enabled indoor unit by temporary stop the capability supply to low load demand 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 operation period Operation stops when comply either one of the following conditions o When other indoor units where Powerful operation are OFF is lower than setting temperature o When the powerful operation is OFF for all indoor units o When Quiet operation received from 1 indoor unit o When protection control starts 11 2 3 Powerful Operation 2 During cooling heating operation this control is to provide fast cooling heating operation compare to normal operation Operation s
44. g Length 7 5m Compressor Freq Fc A Indoor unit capacity Cooling 2 8 CS E9NKKW service mode frequency 28Hz 5 800 e 208 m 230 5 300 4 800 4 300 BS ee 3 800 Outlet Air Temperature 3 300 2 800 3 900 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 3 700 3 500 3 300 3 100 2 900 Cooling Capacity KW 2 700 2 500 2 300 e 5 100 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature C 4 600 4 100 3 600 Current A 3 100 L L di La 2 600 2 100 16 18 20 22 24 1 060 1 040 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 1 020 1 000 0 980 Gas Side Piping Pressure MPa 0 960 0 940 0 920 41 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature C 35 Cooling Characteristic Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fc B Indoor unit capacity Cooling 3 2 CS E12NKKW service mode frequency 33Hz Outlet Air Temperature Cooling Capacity kW Current Gas Side Piping A Pressure MPa e 20
45. into force cooling operation Indoor outdoor PCB Indoor outdoor connection wire H12 Indoor unit 90s after Total indoor Indoor outdoor capacity power supply capability more than connection wire unmatched maximum limit or Indoor outdoor less than minimum PCB limit or number of Specification and indoor unit less than combinationtable two in catalogue H15 Compressor Continuous Compressor Compressor temperature for 5s temperature sensor temperature sensor open or short circuit sensor lead wire abnormality and connector H16 Outdoor Current transformer Outdoor PCB current faulty or compressor faulty or transformer faulty compressor CT faulty abnormality H27 Outdoor air o Continuous Outdoor air Outdoor air temperature for 5s temperature sensor temperature sensor open or short circuit sensor lead wire abnormality and connector H28 Outdoor heat Continuous Outdoor heat Outdoor heat exchanger for 5s exchanger exchanger temperature temperature sensor 1 temperature sensor 1 open or short circuit sensor 1 lead abnormality wire and connector H32 Outdoor heat Continuous Outdoor heat Outdoor heat exchanger for 5s exchanger exchanger temperature temperature sensor 2 temperature sensor 2 open or short circuit sensor 2 lead abnormality wire and connector H33 Indoor Indoor and outdoor Indoor and outdoor rated voltage outdoor units misconnection different check abnormality H
46. ion e Once the compressor starts operation it will not stop its operation for 30 seconds in order to cycle back compressor oil e However it can be stopped using remote control or Auto OFF ON button at indoor unit 13 11 Total Current Control By referring to table below during normal default operation the running current refer to Hi values and during Power Save Mode the running current refer to Lo values e When the outdoor unit total running current AC exceeds X value compressor frequency will decrease e fthe running current does not exceed X value for 5 seconds compressor frequency will increase e However if total outdoor unit running current exceeds Y value compressor will be stopped immediately for 3 minutes CU 2E18NBK Operation Mode X A Y A Hi 14 0 17 5 Cooling Soft Dry A Lo 9 8 17 5 Hi 14 0 17 5 Cooling Soft Dry B Lo 9 8 17 5 Hi 14 0 17 5 Heating Lo 9 8 17 5 13 12 IPM power transistor Protection Control e Overheating Prevention Control o If IPM temperature rises to 80 C outdoor fan speed will be increased o When the IPM temperature rises to 95 C compressor operation will stop immediately o Compressor operation restarts when temperature decreases to 90 C o If IPM temperature detected less than 30 C IPM is judged as open circuit F96 is indicated e DC peak current control o When IPM DC current exceeds set value of 30 0 3 0 A the
47. istor PCB faulty transistor happen within module overheat Outdoor air module 30 minutes circuit fan motor overheating protection F97 Compressor 3 times Compressor Insufficient overheating happen within overheat refrigerant protection 30 minutes F98 Total running 3 times Total current Check current happen within protection refrigeration protection 20 minutes System Power source or compressor lock F99 Outdoor direct Continuous Power transistor Power transistor current DC happen for 7 module current module faulty or peak detection times protection compressor lock LED 1 illuminate is indicated that outdoor unit is operating normally If the LED 1 and self diagnosis indication Illuminate O Flashing Blank OFF 31 is switched off or flashing check the power supply 16 Disassembly and Assembly Instructions AN WARNING High Voltage are generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 16 1 Outdoor Unit Removal Procedure Caution When handling electronic controller be careful 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 th
48. ition does not happen for 4 times e Control 1 stop conditions o Power supply reset o Resetby using remote control 26 14 Servicing Mode 14 1 CU 2E18NBK Fig 1 JP1 COOL__ ONLY LED 1 0 Eb 2 seb SW1 PUMP DOWN LED3 o EJ o _ SW2 OPERATION LED4 O oo TEST LED5 o E o h SW3 WIRING CHECK LED 6 0 14 1 1 Pump down operation SW1 Operate the pump down process according to the following procedure o Confirm the valve on the liquid side and gas side are open o Press PUMP DOWN button SW1 on the Service PCB inside the outdoor unit for more than 5 seconds Pump down cooling operation is performed for 15 minutes o Setthe liquid side 3 way valve to close position and wait until the pressure gauge indicates 0 01Mpa 0 1kg cm G o Immediate set the gas side valve to close position and then press the PUMP DOWN button SW1 to stop the pump down operation NOTE Pump down operation 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 Liquid shut off val
49. ke temperature and indoor heat exchanger temperature 13 3 Electronic Parts Temperature Rise Protection 1 Cool e This control prevents electronic parts temperature rise during cooling overload condition e Start conditions o Outdoor ambient temperature is at protection region as shown in figure below Protection Region 32 C 30 o Outdoor unit total current is above 5 5A e Control content o Outdoor fan speed is adjusted accordingly e Control stop condition o When outdoor ambient temperature is back to normal region e During this control outdoor fan speed does not reduce for Quiet operation 13 4 Electronic Parts Temperature Rise Protection 2 Cool e This control prevents electronic parts temperature rise during cooling dry operation e Start conditions o Total current is at protection region as shown in figure below Protection Region 4 7A Normal Region 3 3A Total current e Control content o Outdoor fan speed is adjusted accordingly e Control stop conditions o When total current is back to normal region e During this control outdoor fan speed does not reduce for Quiet operation 23 13 5 Cooling overload control Cool e This control detect outdoor pipe temperature and perform the compressor frequency restriction during cooling operation Comp stop Comp freq restricted 64 60 57 OD Pipe temp 13 6 Heating overload control
50. n the refrigerant contacts with fire 22 Ventilate if there is refrigerant gas leakage during operation It may cause toxic gas when refrigerant contacts with fire 23 Do not insert your fingers or other objects into the unit high speed rotating fan may cause injury S 24 Must not use other parts except original parts described in catalog and manual 25 Using of refrigerant other than the specified type may cause product damage burst and injury etc AN 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 Q 2 Carry out drainage piping as mentioned in installation instructions lf drainage is not perfect water may enter the room and damage the furniture 3 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage 4 Do not touch outdoor unit air inlet and aluminium fin It may cause injury Q 5 Select an installation location which is easy for maintenance 6 Pb free solder has a higher melting point than standard solder typically the melting point is 50 F 70 F 30 C 40 C higher Please use a high temperature solder iron In case of the soldering iron with temperature control please set it to 700 20 F 370 10 Pb free solder will tend to splash when heated too high about 1100 F 6
51. nimal or plant which could be affected by hot air discharged Keep the spaces indicated by arrows from wall ceiling fence or other obstacles Do not place any obstacles which may cause a short circuit of the discharged air Recommended installation height for outdoor unit should be above the seasonal snow level Refrigerant piping size Outdoor Unit CU 2E18 Note Liquid side 21 4 g6 35mm t0 8mm Gas side 03 8 89 52 t0 8mm Outdoor Unit CU 2E18 Min total piping length for additional gas 20m If total piping length of all indoor units exceeds the minimum length listed above additionally charge with 20g of refrigerant R410A for each additional meter of piping Installation parts you should purchase X It is advisable to avoid more than 2 blockage directions For better ventilation amp multiple outdoor installation please consult authorized dealer specialist Power supply cord X Conduit Connecting cable X Conduit Additional drain hose X 1 4 Liquid side piping X 3 8 Gas side piping X This illustration is for explanation purposes only Respective indoor unit installation procedure shall refer to instruction manual provided in the indoor unit packaging Allowable piping length Outdoor Unit CU 2E18 Allowable piping length of each indoor unit min max 3m 25m Allowable
52. pump and make sure that the needle in the gauge moves from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa Then evacuate the air approximately ten minutes 4 Close the Low side valve of the charging 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 eau Busto aep PROCEDURE IN ORDER TO AVOID P REFRIGERENT GAS LEAKAGE 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port caps of gas side 3 way valve at a torque of 18 Nem with a torque wrench 7 Remove the valve caps of both of the gas side and liquid side 3 way valve Position both of the valves to OPEN using a hexagonal wrench 4 mm 8 Mount valve caps onto the gas side and liquid side of the 3 way valve o Be sure to check for gas leakage Outdoor unit Tube connector x Liquid side Tube connector Gas side Indoor Unit Tube Connector Liquid side Tube connector Gas side Liquid side 3 way valve Close Vacuum gt pump Gas side 3 way valve Close CAUTION f gauge needle does not move from 0 cmHg 0 MPa to 76 cmHg 0 1 MPa in step above take the following measure If the leak stops when the piping connections are tightened further continue working from step G If the leak does not stop when the connections a
53. quirement 14 1 5 Mode priority function e Mode priority function can be enabled by pushing MODE PRIORITY switch SW5 to ON before power supply ON e When Mode Priority Function is ON the mode priority is given to higher capacity indoor units 14 1 6 Cooling only function The unit capable to limit the operation mode to Cooling Mode only Heating mode disabled by cutting JP 1 COOL ONLY before power supply ON This function prevent wrong operation during the unit installed in server room e This function could be disabled again by short the JP1 COOL ONLY before power supply 28 15 Troubleshooting Guide 15 1 Self Diagnosis Function The display screen of wireless remote control unit and the self diagnosis LEDs green on the outdoor printed circuit board in the outdoor unit can be used to identify the location of the problem Refer to the table below to identify and solve the cause of the problem and then re start the air conditioner system If the problem is solved and operation returns to normal LED 1 illuminates and others LED are off Diagnosis Abnormality display LED 6 LED 5 LED 4 LED 3 LED 2 1 bnormality Protection Problem Check location protection judgement operation control H11 Indoor outdoor After Indoor fan only Indoor outdoor Indoor outdoor abnormal operation for operation can communication not wire terminal communication 1 minute start by establish entering
54. re l Indoor indoor Unit A Unit B Power Supply Indoor amp outdoor Cor 8 Forwire stripping and connection requirement refer to the diagram below 9 Secure the power supply cord and connecting cables onto the control board with the holder 10 Attach the control board cover metal and resin and valve cover back to the original position with screw WIRE STRIPPING AND CONNECTING REQUIREMENT gt Wire stripping Indoor outdoor Conductor Conductor Conductor not connecting fully inserted over inserted fully inserted terminal board gt D gt EIS EPS 5 mm 1 PROHIBITED PROHIBITED No loose strand when insert gap Son U wires o This equipment must be properly earthed e Earth wire shall be Yellow Green Y G in colour and longer than other AC wires for safety reason 10 6 Heat Insulation Use a material with good heat resistant properties as the heat insulation for the Liquid side pipes Material shall A CAUTION pipes Be sure to insulate both the gas side and liquid side pipes If the pipes are x withstand not adequately insulated condensation or water leakages may occur Gas side pipes 120 or higher 19 11 Operation Control 11 1 Cooling Operation 11 1 1 Outdoor fan control e When cooling operation is enabled based on outdoor ambient temperature
55. re retightened repair location of leak Do not release refrigerant during piping work for installation and reinstallation Take care of the liquid refrigerant it may cause frostbite 18 10 5 Connect The Cable To The Outdoor Unit 1 Remove Control Board Cover Metal by LEA loosening 2 screws 4 Control Board Cover 2 Remove Valve Cover Metal by loosening Screws Ge 2 screws 3 Remove Plugs 4 Fix the conduit connectors to the knock out Lock Nuts 4 holes with lock nuts then secure them lz 5 Connecting wire between indoor unit and V el gt outdoor unit should be UL listed or CSA GE approved 4 conductor wires minimum AWG16 4 accordance with local electric codes Valve Cover Plugs 6 Wire Connection to the power supply Knock Out Holes 208 230V 60Hz through circuit breaker Side Panel o Connectthe UL listed or CSA approved wires minimum AWG12 to the terminal board and connect to other end of the wires to circuit breaker 7 Connect the power supply cord and connecting wires between indoor unit and outdoor unit according to the diagram as shown Terminals on the indoor unit 1 2 3 Colour of wires Connecting cable Terminals on the outdoor unit 1 213 Power supply cord UNIT A UNIT B Power Supply connection wi
56. t will cause electrical shock or fire Q 17 Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause refrigerant gas leakage Q 18 19 For 410 models when connecting the piping do not use any existing R22 pipes and flare nuts Using such same may cause abnormally high pressure in the refrigeration cycle piping and possibly result in explosion and injury Use only R410A Q materials Thickness of copper pipes used with R410A must be more than 0 8mm Never use copper pipes thinner than 0 8mm It is desirable that the amount of residual oil is less than 40 mg 10m During installation install the refrigerant piping properly before run the compressor Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc 20 During pump down operation stop the compressor before remove the refrigeration piping Removal of refrigeration piping while compressor is operating and valves are opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc 21 After completion of installation or service confirm there is no leakage or refrigerant gas It may generate toxic gas whe
57. tart if all condition below are complied o Powerful operation ON for indoor unit o Not under Annual Cooling control Operation content o Outdoor fan speed will adjust automatically o Compressor frequency will adjust automatically Operation stop when comply either one of the follow conditions o When the powerful operation is OFF for all indoor units o When annual cooling control activated 21 12 Simultaneous Operation Control 1 Operation modes which can be selected using the remote control unit Automatic Cooling Soft Dry Heating e ion operation mode 2 Types of operations modes which can be performed simultaneously o Cooling operation and cooling Soft Dry or e ion operation o Heating operation and heating operation 3 Types of operation modes which cannot be performed simultaneously o While a cooling operation is in progress a heating operation cannot be performed by an indoor unit in another room In the room where the operation button for cooling was pressed first the operation is continued In the room where the operation button for heating 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
58. th m 1 020 1 000 Gas Side Piping Pressure MPa 0 990 0 980 Ds 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 6 900 6 800 6 700 6 600 6 500 6 400 6 300 E 6 200 sss ERE 6 100 7 000 PE Current A 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 46 e Piping Length Characteristic Cooling Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Outdoor temperature 35 DBT Compressor Freq Fc B Indoor unit capacity Cooling 3 2 3 2 CS E12NKKW CS E12NKKW service mode frequency 46Hz e 208 m 230 16 400 16 200 NE 16 000 15 800 15 600 15 400 15 200 15 000 LM 14 800 f 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Outlet Air Temperature Piping Length m 5 000 4 900 4 800 4 700 Cooling Capacity kW 4 600 4 800 mH me 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 050 1 040 1 030 DM Piping Length m Gas Side Piping Pressure MPa 1 020 Pp 1 010
59. tion Diagram INNO 31318009 313140 N33H9 MOT13A 9 A HOME 35 3 BOSNIS 2 m Bu ONvdX3 D INA AYM f AHO 38 9 5 102 109 BVH 10 an 39 55 OMINOYWOYLINI MINYW OYLIITI 3SN2NVEO 3H3N9WW0819313 SUR RM P 3 a Ge SEV 95 52 38 a Q oR og 33 EI 22 32 32 rr z 50 8 030 SN le K EA u Wer 9 6 1 3 2 NWOOdWid ae og 3131dN00 YOSNIS 9 oun s 52 gh H B YOSNIS 444 SVO 8 Seo JOONWALIHOIHd 0 V HOSNIS Jdid SVO mowo fh 5 IW aAVSHIMOd fo OL 2 E En 08408 10810 ld ws 805856 19 SIM YOSNIS Cmmi 819 quv08 10814 V HOSNIS mf Or d Tis gt 55 i 39 NS 30195994 RH 28 73 Qi mg 6 6 2279 W zl s Hf l IH 3 Zi TERY Os 5p e Ord 4 BER S B AOS TVL EL 9c 19 i yor 8 10 J LI 300 03903 VOG IU Ion am 77713400 TWNINYSL dINOO 999 801238802 7 n YVNIAYYI n W ame Waf 8 AND ABD 80 0 92 70 M N 0270 PE rzavxr8Laxs NOLLO3NNOO sBuipuiM Josseidwog Jo eoueijsiseH 09708 WINYL Addis
60. ts Temperature Rise Protection 2 23 13 5 Cooling overload control Cool 24 13 6 Heating overload control Heat 24 13 7 Extreme Low Temperature Compressor low pressure protection control Heat 24 13 8 Deice Control 25 13 9 Time Delay Safety Control Restart 25 13 10 30 seconds Force Operation 25 13 11 Total Current Control 25 13 12 IPM power transistor Protection Controls i ttt etre 25 13 13 Compressor Protection Control Gas leak detection control 1 26 13 14 Compressor Protection Control Gas leak detection control 2 26 13 15 Valve close detection control 26 13 16 Compressor discharge high pressure protection control 26 14 Servicing Mode 27 14 1 CU 2E18NBK 27 15 Troubleshooting Guide 29 15 1 Self Diagnosis Function 29 16 Disassembly and Assembly Instructions 32 16 1 Outdoor Unit Removal Procedure 32 17 Technical 35 17 1 Operation Characteristics 35 18 Explod
61. uency 46Hz e 208 m 230 16 700 16 200 gt 15 700 15 200 Outlet Air Temperature 14 700 14 200 13 700 4 1618 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 6 200 5 700 D 5 200 Cooling Capacity kW 4 700 4 200 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 8 700 7 700 6 700 Current A 5 700 4 700 L 3 700 r 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Outdoor Air Temperature 1 110 1 090 4 1 070 1 050 1 030 1 010 Bieden 0 990 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 Gas Side Piping Pressure MPa Outdoor Air Temperature C 44 e Cooling Characteristic Condition Room temperature 27 DBT 19 WBT Operation condition High fan speed Piping Length 7 5m Compressor Freq Fc C Indoor unit capacity Cooling 2 8 3 2 CS E9NKKW CS E12NKKW service mode frequency 47Hz 208 230 E9NKKW 208 230 E12NKKW 16 000 _ 15 500 lt 15 000 58 6 amp 14 500 E 2 14 000 13 500 16 18 20 22 24 26 28 30 32 3
62. ve Close down operation progress 225715 A 3 minutes before operation end 8 2 minutes before operation end 2 1 minute before operation end vee nal Pump down operation end 258 Flashing Gas shut off valve Valve lid 14 1 2 Test Run operation Test operation can be carried out using TEST OPERATION button SW2 on the Service PCB inside the outdoor unit For Cooling test press the TEST OPERATION button SW2 for 5 seconds or more but less than 10 seconds LED1 and LED 2 will illuminate when shift into cooling test operation For Heating test press the TEST OPERATION button SW2 for more than 10 seconds LED 1 and LED 3 will illuminate when shift into heating test operation Press the TEST OPERATION button SW2 again to cancel test operation 27 14 1 3 Wiring Error check e The unit capable to correct the wiring error automatically by following procedures o Confirm the valve on the liquid side and gas side is open o Press WIRING CHECK button SW3 on the Service PCB inside the outdoor unit for more than 10 seconds to start wiring check operation o Wiring check process will complete in approximately 10 minutes However wiring check operation will not start within 3 minutes after compressor is stopped When outdoor air temperature is less than 5 C or unit has abnormality wiring check will not start See NOTE 2 The LED 2 to LED Service PCB inside the outdoor unit indic
63. y 63Hz e 208 m 230 34 800 a 34 600 Ran 34 400 34 200 Outlet Air Temperature 34 000 33 800 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 6 000 TT 5 950 5 900 5 850 Heating Capacity kW 5 800 5 750 5 700 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 0 698 0 697 0 696 Gas Side Piping Pressure MPa 0 695 0 694 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 8 000 7 800 7 600 Current A 7 400 7 200 7000 gt ________ 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Piping Length m 53 e Piping Length Characteristic Heating Condition Room temperature 20 C DBT Operation condition High fan speed Outdoor temperature 8 3 C DBT 6 1 WBT Compressor Freq Fh C Indoor unit capacity Heating 2 8 3 2 CS E9NKKW CS E12NKKW service mode frequency 64Hz 1 208 230 EQNKKW 208 230 E12NKKW Outlet Air Temperature 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2
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