English dropdown-ico

Panasonic CS-E12NKUAW manual

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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Panasonic CS-E12NKUAW, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Panasonic CS-E12NKUAW one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Panasonic CS-E12NKUAW. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Panasonic CS-E12NKUAW should contain:
- informations concerning technical data of Panasonic CS-E12NKUAW
- name of the manufacturer and a year of construction of the Panasonic CS-E12NKUAW item
- rules of operation, control and maintenance of the Panasonic CS-E12NKUAW item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Panasonic CS-E12NKUAW alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Panasonic CS-E12NKUAW, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Panasonic service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Panasonic CS-E12NKUAW.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Panasonic CS-E12NKUAW item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    © Panasonic HA Air-Conditioni ng (M) Sdn. Bhd. 2011. Unauthorized copying and distribu tion is a violation of law. Order No: PHAAM1111087C1 Indoor Unit Outdoor Unit CS-E9NKUAW CS-E12NKUAW CU-E9NKUA CU-E12NKUA Please file and use this manual together with the service manual for Model No. CU-2E18NB U, Order No. PHAAM1111120A1. TABLE OF CONTENTS 1. S[...]

  • Page 2

    2 12.3 Outdoor Fan Moto r Operation ....................31 12.4 Airflow Dire ction..........................................31 12.5 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode) ...............................................32 12.6 Quiet Operation (Heating) ..........................32 12.7 Powerful Mode Operation .......................[...]

  • Page 3

    3 CA UTI ON WA RN ING WA RN ING 1. Safety Precautions  Read the following “SAFET Y PRECAUTIONS” carefully bef ore perform any servicing.  Electrical work must be installed or serviced by a licens ed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installe d.  The caution items stated here[...]

  • Page 4

    4 CA UTI ON 19. During installation, install the refrigerant piping properly before run the compress or. (Operation of compressor without fi xing refrigeration piping and valves at opened condition will c ause suck-in of air, abnormal high pressure in refrigeration cycle and result in exp losion, injury etc.). 20. During pump down operation, stop t[...]

  • Page 5

    5 2. S pecification Indoor CS-E9NKUAW CS-E12NKUAW Model Outdoor CU-E9NKUA CU-E12NKUA Performance Test Condition ARI ARI Phase, Hz Single, 60 Single, 60 Power Supply V 208 230 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. kW 1.20 2.49 3.00 1.20 2.49 3.00 1.20 3.51 3.90 1.20 3.51 3.90 Capacity BTU/h 4100 8500 10200 4100 8500 102[...]

  • Page 6

    6 Type Propeller Propeller Material PP PP Motor Type DC (8 poles) DC (8 poles) Input Power W - - Output Power W 40 40 Outdoor Fan Speed Hi rpm C: 830 H: 780 C: 830 H: 780 Moisture Removal L/h (Pt/h) 0.6 (1.3) 1.2 (2.5) QLo m 3 /min (ft 3 /min) Cooling : 5.42 (191) Heating : 6.49 (229) Cooling : 5.30 (187) Heating : 8.75 (309) Lo m 3 /min (ft 3 /min[...]

  • Page 7

    7 DRY BULB WET BULB DRY BULB WET BULB Maximum 89.6 73.4 89.6 73.4 Indoor Operation Range (Cooling) Minimum 60.8 51.8 60.8 51.8 Maximum 109.4 78.8 109.4 78.8 Outdoor Operation Range (Cooling) Minimum 5.0 - 5.0 - Maximum 86.0 - 86.0 - Indoor Operation Range (Heating) Minimum 60.8 - 60.8 - Maximum 75.2 64.4 75.2 64.4 Outdoor Operation Range (Heating) [...]

  • Page 8

    8 3. Features  Inverter Technology o Wider output power range o Energy saving o Quick Cooling o More precise temperature control  Environment Protection o Non-ozone depletion substances refrigerant (R410A)  Long Installation Piping o CS/CU-E9/12NK, long piping up to 20 meters  Easy to use remote control  Quality Improvement o Random [...]

  • Page 9

    9 4. Location of Controls and Components 4.1 Indoor Unit 4.2 Outdoor Unit 4.3 Remote Control[...]

  • Page 10

    10 5. Dimensions 5.1 Indoor Unit[...]

  • Page 11

    11 5.2 Outdoor Unit[...]

  • Page 12

    12 6. Refrigeration Cycle Diagram[...]

  • Page 13

    13 7. Block Diagram[...]

  • Page 14

    14 8. Wiring Connection Diagram 8.1 Indoor Unit[...]

  • Page 15

    15 8.2 Outdoor Unit[...]

  • Page 16

    16 9. Electronic Circuit Diagram 9.1 Indoor Unit[...]

  • Page 17

    17 9.2 Outdoor Unit[...]

  • Page 18

    18 10. Printed Circuit Board 10.1 Indoor Unit 10.1.1 Main Printed Circuit Board[...]

  • Page 19

    19 10.1.2 Power Printed Circuit Board 10.1.3 Indicator Prin ted Circuit Board[...]

  • Page 20

    20 10.2 Outdoor Unit 10.2.1 Main Printed Circuit Board[...]

  • Page 21

    21 11. Inst allation Instruction 11.1 Select th e Best Location 11.1.1 Indoor Unit  Do not install the unit in excessive oil fume area such as kitchen, workshop and etc.  There should not be any heat source or steam near the unit.  There should not be any ob stacles bl ocking the air circulation.  A place where air circulation in the ro[...]

  • Page 22

    22 11.2 Indoor Unit 11.2.1 How to Fix In stallation Plate The mounting wall shall be stron g and solid enough to prevent if from the vibration. The center of installation plate sho uld be at more than c at right and left of the wall. The distance from installation plate edge to ceiling should more than d . From installation plate left edge to unit?[...]

  • Page 23

    23 11.2.3 Indoor Unit Installation 11.2.3.1 For the right rear piping 11.2.3.2 For the right bottom piping 11.2.3.3 For the embedded piping (This can be use d for left rear piping and bottom piping also.)[...]

  • Page 24

    24 11.2.4 Connect the Cable to the Indoor Unit 1. The inside and outside co nnection cable can be connected without remo ving the front grille. 2. Unscrew the conduit cover and fix the conduit connector to conduit cover with lock nut, then secure it against chassi s. 3. Connection cable between indoor unit and outdoor unit should be UL listed or CS[...]

  • Page 25

    25 11.2.5 Wiring Stripping and connecting requirement 11.2.5.1 Cutting and flaring the piping 1 Please cut using pipe cutter and then re move the burrs. 2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the pipi ng end down to avoid the metal powder entering the pipe . 3 Please make flare after inserting [...]

  • Page 26

    26 11.3 Outdoor Unit 11.3.1 Install the Outdoor Unit  After selecting the best lo cation, start installation a ccording to indoor/outdoor un it installation diagram. 1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø13/32" ). 2 When installing at roof, please con sider strong wind and earthqua ke. Please faste[...]

  • Page 27

    27 11.3.2.3 Connecting the piping to outdoor multi Decide piping length and then cut by usi ng 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 valve and then tighten with torque wrench to the specifie d torque as stated in the table. 11.3.2.4 Gas Lea[...]

  • Page 28

    28 8. Mount valve caps onto the 2- way valve and the 3-way valve. o Be sure to check for gas leakage. 11.3.3.1 Connect the Cable to the Outdoor Unit 1. Remove Top panel. 2. Remove Control Board Cover (Re sin and Metal). 3. Remove Plugs. 4. Fix the conduit connectors to the knockout holes with lock-nuts, then secure them again st the side panel. 5. [...]

  • Page 29

    29 12. Operation Control 12.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time passes, automatically adjusts output power fo r maximum comfort always. In order to achieve the suitable operation mode, the microcomputer maintains the set temperatur e by measuring the temperat[...]

  • Page 30

    30 12.1.4.2 Automatic Operation  This mode can be set u sing remote control and the operation i s decided by remote control setting temperature, remote control operation mode, indoor intake air temperature and outdoor air temperature.  During op eration mode judgment, indoor fan motor (wi t h speed of Lo-) and outdoor fan moto r are running f[...]

  • Page 31

    31 [Heating] o According to indoor pipe te mperature, automati c heating fan speed is determine d as follows.  Feedback control o Immediately after the fan motor started, f eedback control is pe rformed once every second. o During fan motor on, if fan motor feedba ck ≥ 2550 rpm or < 50 rpm continue for 10 second s, then fan motor error coun[...]

  • Page 32

    32 12.4.2 Horizontal Airflow The horizontal airflow dire ction l ouvers can be adjusted manually by hand. 12.5 Quiet Operation (Cooling Mode /Cooling Area of Dry Mode)  Purpose o To provide quiet cooling op eration compare to no rmal operation.  Control condition o Quiet operation start condi tion  When “Quiet” button at remote cont ro[...]

  • Page 33

    33  Control contents o Fan speed aut o  Indoor FM RPM depends on pipe temperature sensor of indoor heat exchan ger. Auto fan speed is changed from normal settin g to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. o Fan speed manual  Manual fan speed for quiet operation is -1 step from setting fan spee[...]

  • Page 34

    34 12.10 Indication Panel Note:  If POWER LED is blinking, the possible operation of t he unit are Hot Start, during Dei ce operation, operation mode judgment, or ON timer sampling.  If Timer LED is blinking, there is an abnormality operati on occurs.[...]

  • Page 35

    35 13. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s ope ration controls are same with single split conne ction unless specified in this chapter. 13.1 Cooling operation 13.1.1 Thermostat control  Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperatur e — Inter[...]

  • Page 36

    36 13.4 Automatic Operation  This mode can be set using remote cont rol and the operation is decided by rem ote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature.  During operation mode ju dgment, indoor fan motor (with spee d of -Lo) and outdoor fan motor are runni ng for 30 seconds to dete[...]

  • Page 37

    37 14. Protection Control 14.1 Protection Control For All Operations 14.1.1 Restart Control (T ime Delay Safety Control)  The compressor will not turn on within 3 minutes fro m the moment operation stops, although the unit is turned on again by pressing OFF/ON button at re mote control within this p eriod.  This control is not applicable if t[...]

  • Page 38

    38 14.1.5 Compressor Overheating Prevention Control  Instructed frequency for compre ssor operation will be regulated by compre ssor discharge temperature. The changes of frequency are as bel ow.  If compressor discharge te mperature exceeds 224.6°F, compressor will be stopp ed, occurs 4 times per 20 minutes, timer LED will be blin king. (?[...]

  • Page 39

    39 14.2.2 Cooling Overload Control  Pipe temperature limitation / restriction. o Detects the outdoor pipe te mperature and carry out re striction / limitation below (Limit the compre ssor operation frequency) o The compressor stops if outdoor pi pe temperature exceeds 1 41.8°F. o If the compressor stops 4 times in 20 mi nutes, Timer LE D blinks[...]

  • Page 40

    40 14.2.6.2 Outdoor Air Temperature Control  The maximum current value is regulated whe n the out door air temperature rise above 57.2°F in order to avoid compressor overloadi ng.  The compressor will be stopped to avoid comp ressor overloading. 14.2.6.3 Overload Protection Control  The compressor operating frequency is regulated in ac co[...]

  • Page 41

    41 15. Servicing Mode 15.1 Auto Off/On Button 1 AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner wi th limited func tion if remote control is misplaced or m alfunction. 2 TEST RUN OPERATION (FOR PU MP DOWN/SERVICING PURPOSE) The Test Ru[...]

  • Page 42

    42 Press Auto OFF/ON button to toggle remote cont rol receiving sound. - Short “beep”: Turn OFF remote cont rol receiving sound. - Long “beep”: Turn ON remote control receiving sou nd. After Auto OFF/ON button is pressed, the 20 seco nd s counter for Remote Control Receiving Sound OFF/ON Mode is restarted. 15.2 Remote Control Button 15.2.1 [...]

  • Page 43

    43 16. T roubleshooting Guide 16.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no electrical problems before inspectin g the refrigeration cycle. Such problems incl ude insufficient insulation, proble m with the power source, malfunction of a compressor a nd a fan. The normal outlet air temperature and p r[...]

  • Page 44

    44 16.1.1 Relationship between the condition of the air conditioner and pressure and electric current  Carry out the measurements of pressure, electric cu rrent, and tempe rature fifteen minutes after an operation is started.[...]

  • Page 45

    45 16.2 Breakdown Self Diagnosis Function 16.2.1 Self Diagnosis Function (Thr ee Digits Alphanumeric Code)  Once error occurred during operatio n, the uni t will stop its operation, and Timer LED blinks.  Although Timer LED goes off when power supply is turn ed off, if the unit is ope rated under a breakdown condition, the LED will ON again. [...]

  • Page 46

    46 16.3 Error Code Table[...]

  • Page 47

    47 Note: “ ○ ” – Frequency measured and fan spee d fixed The memory data of error code is erased when the powe r supply is cut off, or press the Auto Switch until “beep” sound heard following by pressing the CHECK button at remote control. Although operation forced to stop when abnormality d etected, emergency operation is possible for [...]

  • Page 48

    48 16.4 Self-diagnosis M ethod 16.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he data recei ved from outdoor unit in indoor unit signa l transmission is checked whether it is no rmal. Malfunction Caused  Faulty indoor unit PCB.  Faulty outdoor unit[...]

  • Page 49

    49 16.4.2 H12 (Indoor/Outdoor Cap acity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different ty pes of indoor and outdo or units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted.  Indoor unit or outdoor unit PCBs defective.[...]

  • Page 50

    50 16.4.3 H14 (Indoor Intake Air Temp erature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the indoor intake air temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty P[...]

  • Page 51

    51 16.4.4 H15 (Compressor Temper ature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the outdoor compressor temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty PCB. Tr[...]

  • Page 52

    52 16.4.5 H16 (Outdoor Current Transformer Open Circuit) Malfunction Decision Conditions  A current transformer (CT) is detected by checking the compressor running frequency ( ≥ rated frequency ) and CT detected input current (less than 0.65A) for continuou sly 20 seconds. Malfunction Caused  CT defective  Outdoor PCB defective  Compr[...]

  • Page 53

    53 16.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operati on is used to determine abnorm al fan motor (feedback of rotation > 2550rpm or < 50 rpm) Malfunction Caused  Operation stops due to short circuit inside the fan motor win din[...]

  • Page 54

    54 16.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the indoor heat exchanger temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty PCB.[...]

  • Page 55

    55 16.4.8 H27 (Outdoor Air Temper ature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, the temperatures detecte d by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty PCB. Troublesho[...]

  • Page 56

    56 16.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, the temperatures detecte d by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty PCB. Troublesh[...]

  • Page 57

    57 16.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the outdoor discharge pi pe temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor. [...]

  • Page 58

    58 16.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the outdoor heat exchanger temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor. [...]

  • Page 59

    59 16.4.12 H33 (Unspecified Voltag e between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detec ted for its requir ement by the indoor/ outdoor tran smission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCB s used.  Indoor unit or outdoor unit PCB defective. Troublesho[...]

  • Page 60

    60 16.4.13 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, the temperatures detecte d by the outdoor gas pipe temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Faulty PCB. Troubleshoo[...]

  • Page 61

    61 16.4.14 H37 (Outdoor Liquid Pipe Te mperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operati on of cooling and heating, t he temperatures d etected by the outdoor liquid pipe temperature sensor are used to determine sensor e rrors. Malfunction Caused  Faulty connector connecti on.  Faulty sensor.  Fau[...]

  • Page 62

    62 16.4.15 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operati on is used to determine abnorm al fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor win ding.  Operation stops due to breaking of wire i[...]

  • Page 63

    63 16.4.16 H98 (Indoor High Pressure Protection) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  During heating operation, the temperature dete cted by the indoor pipe temperature sensor i s above 140°F. Malfunction Caused  Clogged air filter of the indoor unit  Dust accumulation on[...]

  • Page 64

    64 16.4.17 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Malfunction Decision Conditions  Freeze prevention control take s place (when indoor pipe temperatu re is lower than 35.6°F) Malfunction Caused  Clogged air filter of the indoor unit  Dust accumulation on the indoor unit he at exchanger  Air short circu it  De[...]

  • Page 65

    65 16.4.18 F11 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  When cooling operation, when ind oor pipe temperature or indoor heat exchange r temperature sensor is above 113°F. Malfunction Caused  Faulty connector connecti on.  Faulty indoor pipe temperature sensor.  Faulty indoor main PCB. Troubleshootin[...]

  • Page 66

    66 16.4.19 F17 (Indoor Standby Un its Freezing Abnormality ) Malfunction Decision Conditions  When the different between indoor intake air tempe rature and indoor pipe tempe rature is above 50°F or indoor pipe temperature is belo w 30.2°F Remark: When the indoor standby unit is freezing , the outdoor uni t transfers F17 error code to the corre[...]

  • Page 67

    67 16.4.20 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  During startup and operati on of cooling and heating, whe n Power Factor Correction (P FC) protection circui try at the outdoor unit main PCB senses abnormal high DC voltage level. Malfunction Caused  DC voltage peak due to power supply surge.  DC voltage [...]

  • Page 68

    68 16.4.21 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  During cooling, compresso r frequency = Fcmax.  During cooling and heating operation, running current: 0.65A < I < 1.65A.  During cooling, indoor intake - ind oor pipe < 39.2°F. Malfunction Caused  Refrigerant shortage (refrigerant leakag e)  [...]

  • Page 69

    69 16.4.22 F93 (Compressor Rotation Failure) Malfunction Decision Conditions A compressor rotation failure is detected by checkin g the compressor running condition throug h the position detection circuit. Malfunction Caused  Compressor termin al disconnect  Outdoor PCB malfunction Troubleshooting[...]

  • Page 70

    70 16.4.23 F95 (Cooling High Pressure Abnormality) Malfunction Decision Conditions During operation of cooli ng, when outdoor unit heat e xchanger high temperature data (141.8°F) is detected by the outdoor pipe temperature sensor. Malfunction Caused  Outdoor pipe temperature rise due to sh ort circuit of hot discharge air flow.  Outdoor pipe[...]

  • Page 71

    71 16.4.24 F96 (IPM Overheating) Malfunction Decision Conditions During operating of cooli ng and heating, when IPM temper ature data (212° F) is detected by the IPM temperature sensor . Malfunction Caused  IPM overheats due to short circuit of hot discharge ai r flow.  IPM overheats due to defective of outdoor fan motor.  IPM overheats d[...]

  • Page 72

    72 16.4.25 F97 (Compressor Overheating) Malfunction Decision Conditions During operation of cooli ng and heating, when com pressor tank temperature data (233.6°F) is detected by the compressor tank temperature sen sor. Malfunction Caused  Refrigerant shortage (refrigerant leakage).  2/3 way valve closed.  Detection error due to faulty com[...]

  • Page 73

    73 16.4.26 F98 (Input Over Current Detection) Malfunction Decision Conditions During cooling and heating operatio n, when an input over-curr ent (16.8A) is detected by checking the input current value being detected by current tran sforme r (CT) with the compressor running. Malfunction Caused  Over-current due to compressor failure.  Over-cur[...]

  • Page 74

    74 16.4.27 F99 (Output O ver Current Detection) Malfunction Decision Conditions During operation of cooli ng and heating, when an output over-cur rent (18.5A) is detecte d by checking the current that flows in the inverter DC peak sensing circuitry. Malfunction Caused  DC peak due to compresso r failure.  DC peak due to defective powe r trans[...]

  • Page 75

    75 WA RN ING 17. Disassembly an d Assembly Instructions High Voltage is generated in the electrical parts area by the capacitor. Ensure that t he capac itor has discharged sufficiently before proceeding with repair work. Failure to heed this cauti on may result in electric shocks. 17.1 Indoor Electronic Controllers, Cro ss Flow Fan and Indoor Fan M[...]

  • Page 76

    76 17.1.1.2 To remove discharge grille[...]

  • Page 77

    77 17.1.1.3 To remove control board 17.1.1.4 To remove cross flow fan and indoor fan motor[...]

  • Page 78

    78[...]

  • Page 79

    79 18. T echnical Dat a 18.1 Operation Characteristics 18.1.1 CS-E9NK CU-E9NK  Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Freq uency : Fc 55.000 56.000 57.000 58.000 59.000 60.000 61.000 5 1 0 1 52 02 5 3 03 54 0 4 55 05 5 6 06 5 7 07 58 0 8 59 09[...]

  • Page 80

    80  Piping Length Characteri stic Cooling o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq uency : Fc 2.410 2.430 2.450 2.470 2.490 2.510 9 1 11 31 51 71 92 12 32 52 72 9 3 13 33 53 73 94 14 34 54 74 95 1 P iping Length ( f t) C oolin g Capacity ( kW) 139.000 [...]

  • Page 81

    81  Heating Characteristic o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Freq uency : Fh 84.000 89.000 94.000 99.000 104.000 109.000 114.000 119.000 124.000 5 1 0 1 52 02 53 0 3 54 04 55 0 5 56 06 57 0 7 58 0 Outdoor A ir T e m per ature ( ° F) O u tlet A ir T emperat ure ( ° F ) 208[...]

  • Page 82

    82  Piping Length Characteri stic Heating o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Outdoor temperature: 47°F (DBT), 43°F (WBT ) o Compressor Freq uency : Fh 3.000 3.050 3.100 3.150 3.200 3.250 3.300 9 1 11 31 51 71 92 12 32 52 72 9 3 13 33 53 73 94 14 34 54 74 95 1 P iping Length ( f t) Heating Capacity ( kW) 98.[...]

  • Page 83

    83 18.1.2 CS-E12NK CU-E12NK  Cooling Characteristic o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Freq uency : Fc 54.000 55.000 56.000 57.000 58.000 59.000 5 1 0 1 52 02 53 0 3 54 04 5 5 05 56 0 6 57 07 5 8 08 59 09 5 1 0 0 1 0 5 Outdoor Air T em per atur e ( ° F) Ou tl e[...]

  • Page 84

    84  Piping Length Characteri stic Cooling o Room temperature: 81°F (DBT), 66°F (WBT) o Operation condition: High fan speed o Outdoor temperature: 95°F (DBT) o Compressor Freq uency : Fc 3.420 3.440 3.460 3.480 3.500 3.520 9 1 11 31 51 71 92 12 32 52 72 9 3 13 33 53 73 94 14 34 54 74 95 1 P iping Length ( f t) C oolin g Capacity ( kW) 135.800 [...]

  • Page 85

    85  Heating Characteristic o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Piping length: 24.6ft o Compressor Freq uency : Fh 86.000 91.000 96.000 101.000 106.000 111.000 116.000 121.000 126.000 5 1 0 1 52 02 53 0 3 54 04 55 0 5 56 06 57 0 7 58 0 Outdoor A ir T e m per ature ( ° F) O u tlet A ir T emperat ure ( ° F ) 20[...]

  • Page 86

    86  Piping Length Characteri stic Heating o Room temperature: 68°F (DBT) o Operation condition: High fan speed o Outdoor temperature: 47°F (DBT), 43°F (WBT ) o Compressor Freq uency : Fh 3.800 3.850 3.900 3.950 4.000 4.050 4.100 9 1 11 31 51 71 92 12 32 52 72 9 3 13 33 53 73 94 14 34 54 74 95 1 P iping Length ( f t) Heating Capacity ( kW) 96.[...]

  • Page 87

    87 19. Exploded View and Replacement Part s List 19.1 Indoor Unit Note The above exploded view is for the purp os e of parts disassembly and replaceme nt. The non-numbered pa rts are not kept as standard service parts.[...]

  • Page 88

    88 REF. NO. PART NAME & DESCRIPTION QTY. CS-E9NKUAW CS-E12NKU A W REMARK 1 CHASSIS COMPLETE 1 CWD50C1633 ← 2 FAN MOTOR 1 L6CBYYYL0055 ← O 3 CROSS-FLOW FAN COMPLETE 1 CWH02C1076 ← 4 BEARING ASSY 1 CWH64K007 ← 5 SCREW - CROSS-FLOW FAN 1 CWH551146 ← 7 EVAPORATOR 1 CWB30C3504 CWB30C3505 8 FLARE NUT (LIQUID) 1 CWT251030 ← 9 FLARE NUT (GA[...]

  • Page 89

    89 19.2 Outdoor Unit Note The above exploded view is for the purp os e of parts disassembly and replaceme nt. The non-numbered pa rts are not kept as standard service parts.[...]

  • Page 90

    90 REF. NO. PART N A ME & DESCRIPTION QTY. CU-E9NKUA CU-E12NKUA REMARK 1 CHASSIS ASSY 1 CWD50K2081A ← 2 FAN MOTOR BRACKET 1 CWD541089 ← 3 SCREW - FAN MOTOR BRACKET 2 CWH551217 ← 4 FAN MOTOR 1 ARW6404AC ← O 5 SCREW - FAN MOTOR MOUNT 4 CWH55252J ← 6 PROPELLER FA N ASSY 1 CWH03K1014 ← 7 NUT - PROPELLER FAN 1 CWH56053J ← 8 COMPRESSOR [...]