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- Air Conditioner
- CS-NE12GKE
- Service Manual
Panasonic CS-NE12GKE Service Manual - 4.1.
Summary of CS-NE12GKE
Page 1
© 2007 panasonic ha air-conditioning (m) sdn. Bhd. (11969-t). All rights reserved. Unauthorized copying and distribution is a violation of law. Order no. Mac0705021c2 air conditioner cs-ne7gke cu-ne7gke cs-ne9gke cu-ne9gke cs-ne12gke cu-ne12gke table of contents page page 1 safety precaution -------...
Page 2: 1 Safety Precaution
2 13 servicing mode -------------------------------------------------- 41 13.1. Auto off/on button ------------------------------------ 41 13.2. Select remote control transmission code ------- 42 13.3. Remote control button --------------------------------- 42 14 troubleshooting guide --------------...
Page 3
3 1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect. 2. 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. 3. Carry out drainage piping as mentioned in i...
Page 4: 2 Specifications
4 2 specifications 2.1. Cs-ne7gke cu-ne7gke item unit indoor unit outdoor unit performance test condition eurovent c o o l i n g capacity kw 2.05 (0.60 ~ 2.40) kcal/h 1760 (520 ~ 2060) eer w/w 4.46 (5.00 ~ 4.29) kcal/hw 3.83 (4.33 ~ 3.68) noise level db (a) high 37, low 24, q-lo 21 high 45 power lev...
Page 5
5 1. Cooling capacities are based on indoor temperature of 27 ° c d.B. (80.6 ° f d.B.), 19.0 ° c w.B. (66.2 ° f w.B.) and outdoor air temperature of 35 ° c d.B. (95 ° f d.B.), 24 ° c w.B. (75.2 ° f w.B.) 2. Heating capacities are based on indoor temperature of 20 ° c d.B. (68 ° f d.B.) and outdoor a...
Page 6: 2.2.
6 2.2. Cs-ne9gke cu-ne9gke item unit indoor unit outdoor unit performance test condition eurovent c o o l i n g capacity kw 2.60 (0.60 ~ 3.00) kcal/h 2240 (520 ~ 2580) eer w/w 4.41 (5.00 ~ 4.00) kcal/hw 3.80 (4.33 ~ 3.44) noise level db (a) high 39, low 26, q-lo 23 high 46 power level db 50 59 h e a...
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7 1. Cooling capacities are based on indoor temperature of 27 ° c d.B. (80.6 ° f d.B.), 19.0 ° c w.B. (66.2 ° f w.B.) and outdoor air temperature of 35 ° c d.B. (95 ° f d.B.), 24 ° c w.B. (75.2 ° f w.B.) 2. Heating capacities are based on indoor temperature of 20 ° c d.B. (68 ° f d.B.) and outdoor a...
Page 8: 2.3.
8 2.3. Cs-ne12gke cu-ne12gke item unit indoor unit outdoor unit performance test condition eurovent c o o l i n g capacity kw 3.50 (0.60 ~ 4.00) kcal/h 3010 (520 ~ 3440) eer w/w 3.80 (5.00 ~ 3.39) kcal/hw 3.27 (4.33 ~ 2.92) noise level db (a) high 42, low 29, q-lo 26 high 48 power level db 53 61 h e...
Page 9
9 1. Cooling capacities are based on indoor temperature of 27 ° c d.B. (80.6 ° f d.B.), 19.0 ° c w.B. (66.2 ° f w.B.) and outdoor air temperature of 35 ° c d.B. (95 ° f d.B.), 24 ° c w.B. (75.2 ° f w.B.) 2. Heating capacities are based on indoor temperature of 20 ° c d.B. (68 ° f d.B.) and outdoor a...
Page 10: 3 Features
10 3 features • product - four modes of operation selection - powerful mode to reach the desired room temperature quickly with full power and a strong airflow - quiet mode to provide a quiet environment by reducing the indoor unit operating airflow sound - 24-hour on timer and off timer setting - ai...
Page 11: 4.1.
11 4 location of controls and components 4.1. Product overview 4.1.1. Indoor unit 4.1.2. Outdoor unit 4.1.3. Remote control.
Page 12: 5 Dimensions
12 5 dimensions 5.1. Indoor unit.
Page 13: 5.2.
13 5.2. Outdoor unit.
Page 14
14 6 refrigeration cycle diagram if piping length is over common length, additional refrigerant should be added as shown in the table. Model piping size rated length (m) common length (m) min. Piping (m) max. Elevation (m) max. Piping length length (m) additional refrigerant (g/m) gas liquid ne7gk, ...
Page 15: 7 Block Diagram
15 7 block diagram.
Page 16: 8 Wiring Connection Diagram
16 8 wiring connection diagram 8.1. Indoor unit.
Page 17: 8.2.
17 8.2. Outdoor unit.
Page 18: 9.1.
18 9 electronic circuit diagram 9.1. Indoor unit.
Page 19: 9.2.
19 9.2. Outdoor unit.
Page 20: 10 Printed Circuit Board
20 10 printed circuit board 10.1. Indoor unit 10.1.1. Main printed circuit board.
Page 21
21 10.1.2. Power printed circuit board 10.1.3. Indicator panel.
Page 22: 10.2. Outdoor Unit
22 10.2. Outdoor unit 10.2.1. Main printed circuit board.
Page 23: 11 Installation Instruction
23 11 installation instruction 11.1. Select the best location indoor unit • there should not be any heat source or steam near the unit. • there should not be any obstacles blocking the air circulation. • a place where air circulation in the room is good. • a place where drainage can be easily done. ...
Page 24: 11.3. Indoor Unit
24 11.3. Indoor unit 11.3.1. How to fix installation plate the mounting wall is strong and solid enough to prevent it from the vibration. The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge to ceiling should more tha...
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25 3. For the embedded piping (this can be used for left rear piping and left bottom piping also.).
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26 11.3.4. Connect the cable to the indoor unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 5 × 1.5 mm 2 flexible cord, type designation 245 iec 57 o...
Page 27: 11.4. Outdoor Unit
27 11.4. Outdoor unit 11.4.1. Install the outdoor unit • after selecting the best location, start installation according to indoor/outdoor unit installation diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 2. When installing at roof, please consider s...
Page 28
28 11.4.3. 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 port of the 3-way valve. • be sure to conne...
Page 29
29 11.4.5. Pipe insulation 1. Please carry out insulation at pipe connection portion as mentioned in indoor/outdoor unit installation diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2. If drain hose or connecting piping is in the room (where dew may form)...
Page 30: 12 Operation and Control
30 12 operation and control 12.1. Basic function inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer mai...
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31 12.1.5. Automatic operation • this mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake air temperature and outdoor air temperature. • during operation mode judgment, indoor fan motor (with speed of l...
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32 12.1.7. Indoor fan motor operation a. Basic rotation speed i. Manual fan speed [cooling, dry] • fan motor’s number of rotation is determined according to remote control setting. [heating] • fan motor’s number of rotation is determined according to remote control setting. Ii. Auto fan speed [cooli...
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33 12.1.8. Outdoor fan motor operation outdoor fan motor is operated with 15 fan speed number of rotations. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. 12.1.9. Airflow direction 1. There are two types of airflow, vertical airflow (directed by ...
Page 34
34 12.1.9.2. Horizontal airflow • the horizontal airflow direction louvers can be adjusted manually by hand. 12.1.10. Quiet operation (cooling mode/cooling area of dry mode) a. Purpose to provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condi...
Page 35
35 12.1.12. Powerful mode operation when the powerful mode is selected, the internal setting temperature will shift higher up to 3.5 ° c (heating operation) or lower up to 2 ° c (cooling/soft dry operation) than remote control setting temperature for 20 minutes to achieve the setting temperature qui...
Page 36
36 12.1.17. +8/10 ° c heat operation 1. This +8/10 ° c heat mode is designed to provide heating at low setting temperature in unoccupied houses during winter for the purpose of protecting equipments or housing appliances which may be destroyed by the extreme cold weather. 2. This operation mode can ...
Page 37: 12.2. Protection Control
37 12.2. Protection control 12.2.1. Protection control for all operations 12.2.1.1. Time delay safety control 1. The compressor will not start for 3 minutes after stop of the operation. 2. This control is not applicable if the power supply is cut off and on again or after 4-way valve deices conditio...
Page 38
38 12.2.1.5. Compressor overheating prevention control instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below. If compressor discharge temperature exceeds 110 ° c, compressor will be stopped, occurs 4 times per 20 mi...
Page 39
39 12.2.2. Protection control for cooling & soft dry operation 12.2.2.1. Outdoor air temperature control • the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. • this control will begin 1 minute after the compressor starts. 12.2....
Page 40
40 12.2.3. Protection control for heating operation 12.2.3.1. Intake air temperature control compressor will operate at max freq. If either one of the below conditions occur: 1. When the indoor intake air temperature is 30 ° c or above. 12.2.3.2. Outdoor air temperature control • the max current val...
Page 41: 13 Servicing Mode
41 13 servicing mode 13.1. Auto off/on button this button is used to pump doen the air conditioner during servicing or transferring of outdoor unit. 1. It can be used to operate air conditioner in limited function if remote control is misplaced or malfunction. • auto operation will start when auto o...
Page 42: 13.3. Remote Control Button
42 mode is in standby condition) and press “ac reset” button and then press “check” button at remote control. Press “auto off/on button” to toggle remote control receiving sound. - short “beep”: turn off remote control receiving sound. - long “beep”: turn on remote control receiving sound. After aut...
Page 43: 14 Troubleshooting Guide
43 14 troubleshooting guide 14.1. Refrigeration cycle system in order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a f...
Page 44
44 14.1.1. Relationship between the condition of the air conditioner and pressure and electric current • carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started. Cooling mode heating mode low pressure high pressure electric current duri...
Page 45
45 14.2. Breakdown self diagnosis function 14.2.1. Self diagnosis function (three digits alphanumeric code) • once abnormality has occurred during operation, the unit will stop its operation, and timer led blinks. • although timer led goes off when power supply is turned off, if the unit is operated...
Page 46: 14.3.
46 14.3. Error codes table note: “o” - frequency measured and fan speed fixed. The memory data of error code is erased when the power 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 whe...
Page 47: Removal Procedures
47 15 disassembly and assembly instructions 15.1. Indoor electronic controllers, cross flow fan and indoor fan motor removal procedures 15.1.1. To remove the front grille • lift to open the vertical vent gently. Remove the 2 caps and 2 screws at the bottom of discharge vent. (fig. 1) • remove the fr...
Page 48
48 • press the hold to the right side, remove the particular piece and slide out the main electronic controller (fig. 4). • release the cn-data. (fig. 5) • release the cn-th. (fig.5) • release the cn-stm1. (fig.5) fig. 4 fig. 5 15.1.3. To remove the power electronic controller • release the 2 screws...
Page 49
49 15.1.4. To remove the discharge grille • pull out the drain hose (behind the discharge grille) from outlet to remove the discharge grille. (fig. 8) fig. 8 15.1.5. To remove the control board • release the 3 screws. (fig. 9) • by pressing down the hook at the left side of control board, you will b...
Page 50
50 • lift up the evaporator and remove the cross flow fan from the unit by pulling it to the left and downward. Fan motor can be removed after the removal of the cross flow fan (fig. 12) fig. 12.
Page 51
51 15.2. Outdoor electronic controller removal procedure caution! When handling electronic controller, be careful of electrostatic discharge. 1. Remove the 3 screws of the top panel. Fig. 1 2. Remove the 6 screws of the front panel. Fig. 2 3. Remove the screw of the terminal board cover. 4. Remove t...
Page 52: 16 Technical Data
52 16 technical data 16.1. Operation characteristics 16.1.1. Cs-ne7gke cu-ne7gke a. Cool: outdoor temperature change indoor temp.: 27/19 ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
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53.
Page 54
54 b. Cool: piping length change indoor temp.: 27/19 ° c, 35/- ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
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55.
Page 56
56 c. Heat: outdoor temperature change indoor temp.: 20/- ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 57
57.
Page 58
58 d. Heat: piping length change indoor temp.: 20/- ° c, 7/6 ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 59
59.
Page 60
60 16.1.2. Cs-ne9gke cu-ne9gke a. Cool: outdoor temperature change indoor temp.: 27/19 ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
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61.
Page 62
62 b. Cool: piping length change indoor temp.: 27/19 ° c, 35/- ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
Page 63
63.
Page 64
64 c. Heat: outdoor temperature change indoor temp.: 20/- ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 65
65.
Page 66
66 d. Heat: piping length change indoor temp.: 20/- ° c, 7/6 ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 67
67.
Page 68
68 16.1.3. Cs-ne12gke cu-ne12gke a. Cool: outdoor temperature change indoor temp.: 27/19 ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
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69.
Page 70
70 b. Cool: piping length change indoor temp.: 27/19 ° c, 35/- ° c remote con.: hi fan, cool 16 ° c comp. Hz: rated cooling voltage: 230 v.
Page 71
71.
Page 72
72 c. Heat: outdoor temperature change indoor temp.: 20/- ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 73
73.
Page 74
74 d. Heat: piping length change indoor temp.: 20/- ° c, 7/6 ° c remote con.: hi fan, heat 30 ° c comp. Hz: rated heating voltage: 230 v.
Page 75
75.
Page 76
76 16.2. Sensible capacity chart cs-ne7gke cu-ne7gke 230v outdoor temp. ( ° c) indoor wet bulb temp. 30 35 40 46 tc shc ip tc shc ip tc shc ip tc shc ip 17.0 ° c 2.03 1.54 0.42 1.90 1.48 0.45 1.77 1.42 0.48 1.61 1.35 0.52 19.0 ° c 2.05 0.46 19.5 ° c 2.23 1.61 0.43 2.09 1.55 0.46 1.94 1.49 0.49 1.77 ...
Page 77: 17.1. Indoor Unit
77 17 exploded view and replacement parts list 17.1. Indoor unit note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..
Page 78
78 (note) • all parts are supplied from phaam, malaysia (vendor code: 061). • “o” marked parts are recommended to be kept in stock. Ref. No. Part name & description qty. Cs-ne7gke cs-ne9gke cs-ne12gke remarks 1 chassy complete 1 cwd50c1513 ← ← 2 fan motor 1 arw61f8p30ac ← ← o 3 cross flow fan comple...
Page 79: 17.2. Outdoor Unit
79 17.2. Outdoor unit note the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..
Page 80
80 ref. No. Part name & description qty. Cu-ne7gke cu-ne9gke cu-ne12gke remarks 1 chassy assy 1 cwd50k2140 ← ← 2 anti - vibration bushing 3 cwh50077 ← ← 3 compressor, dc 220v 1 5cs110xbd04 ← ← o 4 nut - compressor mount 3 cwh56000j ← ← 5 crankcase heater 1 cwa341026 ← ← 6 sound proof material 1 cwmg...
Page 81
81 (note) • all parts are supplied from phaam, malaysia (vendor code: 061). • “o” marked parts are recommended to be kept in stock. [phaam] printed in malaysia ssyw0705-00 ref. No. Part name & description qty. Cu-ne7gke cu-ne9gke cu-ne12gke remarks 51 strainer 1 cwb111004 ← ← 52 flare nut (1/4”) 1 c...