Order No. MAC0801088C2 Air Conditioner Indoor Unit Outdoor Unit CS-CE7HKEW CU-CE7HKE CS-CE9HKEW CU-CE9HKE CS-CE12HKEW CU-CE12HKE Please file and use this manual together with the service manual for Model No. CU-2E18CBPG, CU-3E23CBPG, CU4E27CBPG, Order No. RAC0209005C2, Model No. CU-3E18EBE, Order No. RAC0503011C2 and Model No. CU-2E15GBE, Order No. MAC0704001A2.
9.2. Outdoor Unit ----------------------------------------------- 26 10 Printed Circuit Board ------------------------------------------ 27 10.1. Indoor Unit ------------------------------------------------- 27 10.2. Outdoor Unit ----------------------------------------------- 29 11 Installation Instruction ---------------------------------------- 30 11.1. Select The Best Location ------------------------------ 30 11.2. Indoor/Outdoor Unit Installation Diagram ---------- 30 11.3.
6. 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. 7. Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection. 8.
2 Specifications 2.1. CS-CE7HKEW CU-CE7HKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition C Capacity O O L EER I N G Noise Level H Capacity E A T COP I N Noise Level G Moisture Removal Air Volume EUROVENT kW 2.05 (0.70 ~ 2.40) kCal/h 1760 (600 ~ 2060) W/W 4.36 (4.12 ~ 4.14) kCal/hW 3.74 (3.53 ~ 3.55) dB (A) High 37, Low 24, QLo 20 High 45 Power level dB High 48, Low 35, QLo 31 58 kW 2.80 (0.70 ~ 4.00) kCal/h 2410 (600 ~ 3440) W/W 4.41 (4.38 ~ 3.92) kCal/hW 3.80 (3.
ITEM UNIT Type Material Motor Type Fan Propeller Fan ASG20K1 PP Transistor (8-pole) Induction (6-pole) W — 62 Output Power W 30 25 QLo (Cool/Heat) rpm 680 / 780 — Lo (Cool/Heat) rpm 780 / 850 — Me (Cool/Heat) rpm 1010 / 1085 — Hi (Cool/Heat) rpm 1240 / 1320 750 / - SHi (Cool/Heat) rpm Fin Material 1310 /1390 — Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin 2 x 15 x 17 2 x 24 x 17 Fin Type Row x Stage x FPI Size (W x H x L) Air Filter OUTDOOR UNIT Input Po
2.2. CS-CE9HKEW CU-CE9HKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition C Capacity O O L EER I N Noise Level G H Capacity E A T COP I N Noise Level G Moisture Removal Air Volume EUROVENT kW 2.60 (0.80 ~ 3.00) kCal/h 2240 (690 ~ 2580) W/W 4.41 (4.57 ~ 4.00) kCal/hW 3.80 (3.94 ~ 3.44) dB (A) High 39, Low 25, QLo 20 High 46 Power level dB High 50, Low 36, QLo 31 59 kW 3.60 (0.80 ~ 5.00) kCal/h 3100 (690 ~ 4300) W/W 4.31 (4.85 ~ 3.73) kCal/hW 3.71 (4.18 ~ 3.
ITEM UNIT Type INDOOR UNIT OUTDOOR UNIT Cross-Flow Fan Propeller Fan ASG20K1 PP Material Motor Type Fan Transistor (8-pole) Induction (6-pole) Input Power W — 65 Output Power W 30 25 rpm 720 / 890 — QLo (Cool/Heat) Fan Speed Lo (Cool/Heat) rpm 830 / 940 — Me (Cool/Heat) rpm 1070 / 1170 — Hi (Cool/Heat) rpm 1310 / 1400 770 / - SHi (Cool/Heat) rpm 1390 / 1490 — Fin Material Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin Fin Type Heat Exchanger Row x Stage
2.3. CS-CE12HKEW CU-CE12HKE ITEM UNIT INDOOR UNIT OUTDOOR UNIT Performance Test Condition C Capacity O O L EER I N Noise Level G kW 3.50 (0.80 ~ 4.00) kCal/h 3010 (690 ~ 3440) W/W 3.83 (4.32 ~ 3.39) kCal/hW H Capacity E A T COP I N Noise Level G Moisture Removal Air Volume EUROVENT High 42, Low 28, QLo 20 High 48 Power level dB High 53, Low 39, QLo 31 61 kW 4.80 (0.80 ~ 6.50) kCal/h 4130 (690 ~ 5590) W/W 3.81 (4.57 ~ 3.44) kCal/hW 3.28 (3.94 ~ 2.
ITEM UNIT Type INDOOR UNIT OUTDOOR UNIT Cross-Flow Fan Propeller Fan ASG20K1 PP Material Motor Type Fan Transistor (8-pole) Induction (6-pole) Input Power W — 70 Output Power W 30 30 rpm 730 / 1090 — QLo (Cool/Heat) Fan Speed Lo (Cool/Heat) rpm 920 / 1150 — Me (Cool/Heat) rpm 1175 / 1325 — Hi (Cool/Heat) rpm 1430 / 1500 830 / - SHi (Cool/Heat) rpm 1500 / 1550 — Fin Material Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin Fin Type Heat Exchanger Row x Sta
2.4.
2.5.
2.6.
3 Features • Inverter Technology - Wider output power range - Energy saving - Quick Cooling - Quick Heating - More precise temperature control • E-ion Air Purifying System with Patrol Sensor - Active e-ions are released to catch dust particles and bring them back the large positively charged filter • Environment Protection - Non-ozone depletion substances refrigerant (R410A) • Long Installation Piping - CS/CU-CE7/9/12HK, long piping up to 15 meters • Easy to use remote control • Quality Improvement - Random
• Multi Split Combination Possibility: - A single outdoor unit enables air conditioning of up to two separate rooms for CU-2E15GBE, CU-2E18CBPG. - A single outdoor unit enables air conditioning of up to three separate rooms for CU-3E18EBE, CU-3E23CBPG. - A single outdoor unit enables air conditioning of up to four separate rooms for CU-4E27CBPG.
4 Location of Controls and Components 4.1. Indoor Unit 4.2. Outdoor Unit 4.3.
5 Dimensions 5.1.
5.2.
6 Refrigeration Cycle Diagram Piping size Model CE7HK, CE9HK, CE12HK Gas Liquid Rated Length (m) 3/8” 1/4” 7.5 Common Length (m) Max. Elevation (m) Min. Piping Length (m) Max. Piping Length (m) Additional Refrigerant (g/m) 7.5 15 3 15 20 If piping length is over common length, additional refrigerant should be added as shown in the table.
7 Block Diagram 22
8 Wiring Connection Diagram 8.1.
8.2.
9 Electronic Circuit Diagram 9.1.
9.2.
10 Printed Circuit Board 10.1. Indoor Unit 10.1.1.
10.1.2. Power Printed Circuit Board 10.1.3. Indicator Printed Circuit Board 10.1.4.
10.2.
11 Installation Instruction 11.1. Select The Best Location 11.2. Indoor/Outdoor Unit Installation Diagram 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 obstacles blocking the air circulation. • A place where air circulation in the room is good. • A place where drainage can be easily done. • A place where noise prevention is taken into consideration.
11.3. Indoor Unit 11.3.1. HOW TO FIX INSTALLATION PLATE 11.3.2. The mounting wall is strong and solid enough to prevent it from the vibration. TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING 1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall. Caution When the wall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the connecting cable.
3. For the embedded piping (This can be used for left rear piping and left bottom piping also.
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 4 u 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord. • Ensure the colour of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively.
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 strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. 11.4.2.
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 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 with check valve, or vacuum pump and vacuum pump adaptor. 3.
4. Cable connection to the power supply through knife switch (Disconnecting means). • Connect the approved polychloroprene sheathed power supply cable (3 x 1.5 mm2), type designation 245 IEC 57 or heavier cord to the terminal board, and connect the other end of the cable to knife switch (Disconnecting means). Note: Knife switch (Disconnecting means) should have minimum 3.5 mm contact gap. • Secure the cable onto the control board with the holder (clamper). 11.4.5. PIPE INSULATION 1.
12 Operation 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 maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
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 Lo-) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on below chart.
[Heating] • According to indoor pipe temperature, automatic heating fan speed is determined as follows. B. Feedback control • Immediately after the fan motor started, feedback control is performed once every second. • During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then H19 - fan motor error is detected. Operation stops and cannot on back. 12.3.
2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position. 12.4.2. Horizontal Airflow • The horizontal airflow direction louvers can be adjusted manually by hand. 12.5. Quiet operation (Cooling Mode/Cooling area of Dry Mode) A. Purpose To provide quiet cooling operation compare to normal operation. B.
2. When quiet operation is stopped, operation is shifted to normal operation with previous setting. 3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. 4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, expect fan only mode. 5. During quiet operation, if timer “on” activates, quiet operation maintains. 6. After off, when on back, quiet operation is not memorised. C. Control contents a. Fan Speed manual 1.
12.10. Indication Panel LED POWER TIMER QUIET POWERFUL e-ion Color Green Orange Orange Orange Blue PATROL SENSOR Blue Light ON Operation ON Quiet Setting ON Quiet Mode ON Powerful Mode ON e-ion ON PATROL ON Light OFF Operation OFF Quiet Setting OFF Quiet Mode OFF Powerful Mode OFF e-ion OFF PATROL OFF Note: • If POWER LED is blinking, the possible operation of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling.
c. Patrol operation disable • To disable the Patrol Operation during unit start (default) with “OFF/ON” button, press “Patrol” button and hold for 5 seconds, then release. • To disable the Patrol Operation, press “Patrol” button and hold for 15 seconds, then release. C. Control Content a. Gas Sensor Control • First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored. The Air Dirtiness level is set to level 2.
e. Indicator • When Patrol operation starts, Patrol Sensor indicator ON. • When e-ion operation starts based on dirtiness level, e-ion indicator ON. f. Remote Control Receiving Sound • Normal Operation o Patrol Mode • Patrol Mode o Stop • Patrol Mode o Normal Operation o Patrol • Stop : : : : Beep Long Beep Beep Beep g. Timer Control • When ON timer activates when unit stops, previous operation resumes without Patrol operation.
C. Control Content a. Indoor fan control • During any operation mode combines with e-ion operation, fan speed follows respective operation mode. • During e-ion individual operation - only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is pressed, no signal is sent to air conditioner, and no change on LCD display. Auto Fan Speed for e-ion operation switches between HLo and CLo at pattern below: b.
Error Reset Method • Press “OFF/ON” button to OFF the operation. • Press AUTO OFF/ON button at indoor unit to OFF the operation. • OFF Timer activates. • Press “e-ion” button during e-ion individual mode. • Power supply reset. iii. e-ion breakdown Judgement Method • When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, due to PCB or filter’s high voltage power supply damage. • Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.
13 Protection Control 13.1. Protection Control For All Operations 13.1.1. Restart Control (Time Delay Safety Control) • The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. • This control is not applicable if the power supply is cut off and on again. • This phenomenon is to balance the pressure inside the refrigerant cycle. 13.1.2.
13.1.5. 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 110qC, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking. (“F97” is indicated.) 13.1.6. Low Pressure Prevention Control (Gas Leakage Detection) a.
13.1.9. Low Frequency Protection Control 2 • When all the below conditions comply, the compressor frequency will change to lower frequency. Temperature, T, for: Cooling/Soft Dry Indoor intake air (qC) T < 15 or T 30 Outdoor air (qC) T < 16 or T 38 Indoor heat exchanger (qC) Heating — T < 4 or T T < 30 T 24 0 13.2. Protection Control For Cooling & Soft Dry Operation 13.2.1.
13.2.5. Dew Prevention Control 2 • To prevent dew formation at indoor unit discharge area. • This control starts if all conditions continue for 20 minutes: - Operated with Cooling or Soft Dry Mode. - Indoor intake temperature is between 25qC and 29qC. - Outdoor air temperature is less than 30qC. - Quiet Lo fan speed. • This control stopped if: - When receive air swing change signal from Remote Control. • The horizontal louver will be fixed at 24q (regardless of Auto or Manual Airflow Direction Setting).
14 Servicing Mode 14.1. 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 with limited function if remote control is misplaced or malfunction. 2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds.
Remote Control Printed Circuit Board Jumper A (J-A) Jumper B (J-B) Remote Control No. Short Open A (Default) Open Open B Short Short C Open Short D • During Remote Control Number Switch Mode, press any button at remote control to transmit and store the transmission code to the EEPROM. 14.3. Remote Control Button 14.3.1. SET BUTTON • To check current remote control transmission code - Press for more than 10 seconds. • To change the air quality sensor sensitivity - Press and release with pointer.
15 Troubleshooting Guide 15.1. 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 fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table on the right.
15.1.1.
15.2. Breakdown Self Diagnosis Function 15.2.1. Self Diagnosis Function (Three Digits Alphanumeric Code) 7. The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds. 8. The same diagnosis can be repeated by turning power on again. • Once abnormality has occurred during operation, the unit will stop its operation, and Timer LED blinks.
15.3. Error Codes Table Diagnosis display Abnormality / Protection control H00 No abnormality detected H11 Indoor / outdoor abnormal communication H12 H14 Abnormality Judgement — Emergency operation Primary location to verify Normal operation > 1 min after starting operation Indoor fan operation only • Internal / external cable connections • Indoor / Outdoor PCB Connection capability rank abnormal — — Indoor intake air temperature sensor abnormality Continue for 5 sec.
16 Disassembly and Assembly Instructions High voltages 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. Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 16.1.1. To remove front grille 16.1.2.
16.1.3.
16.1.4. To remove control board 16.1.5.
16.2. Outdoor Electronic Controller Removal Procedure Caution! When handling electronic controller, be careful of electrostatic discharge. 5. Remove the Control Board as follows: 1. Remove the 3 screws of the Top Panel. Fig. 1 Fig. 4 2. Remove the 6 screws of the Front Panel. Fig. 2 3. Remove the screw of the Terminal Board Cover. 4. Remove the Top Cover of the Control Board by 4 hooks. Fig. 5 Fig. 6 Fig.
17 Technical Data 17.1. Operation Characteristics 17.1.1.
17.1.2.
17.1.3.
17.2. Sensible Capacity Chart O CS-CE7HKEW CU-CE7HKE 230V Outdoor Temp. (qC) 30 35 40 46 Indoor wet bulb temp. TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17.0qC 2.03 1.54 0.43 1.90 1.48 0.46 1.77 1.42 0.50 1.61 1.35 0.53 19.5qC 2.23 1.61 0.44 2.09 1.55 0.47 1.94 1.49 0.50 1.77 1.42 0.54 22.0qC 2.43 1.67 0.45 2.27 1.61 0.48 2.12 1.55 0.51 1.92 1.48 0.55 19.0qC 2.05 0.47 O CS-CE9HKEW CU-CE9HKE 230V Outdoor Temp.
18 Exploded View and Replacement Parts List 18.1. 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.
REF. NO. PART NAME & DESCRIPTION QTY.
18.2. 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.
REF. NO. QTY.