Benutzeranleitung / Produktwartung CU-2E18NBU des Produzenten Panasonic
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© Panasonic HA Air-Conditioni ng (M) Sdn. Bhd. 2011. Unauthorized copying and distribu tion is a violation of law. Order No: PHAAM1111120 A1 Outdoor Unit CU-2E18NBU Please file and use this manual together w ith the serv ice manual for Model No. CS-E9NKUAW CS-E12NKUAW, Order No.
2 13.4 Electronic Parts Temperature Ri se Protection 2 (Cool)......................................23 13.5 Cooling overload c ontrol (C ool) ..................24 13.6 Heating overload c ontrol (Heat) .................24 13.7 Extreme Low Temperature Compressor low pressure protection control (Heat) .
3 CA UTI ON WA RN IN G WA RN IN G 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.
4 CA UTI ON 18. For R410A 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 cy cle (piping), and possibly result in explosion and injury. Use only R410A materials.
5 2. S pecifications 2.1 CU-2E18NBU Item Unit OUTDOOR UNIT Indoor Unit Combination 3.2kW + 3.2kW Power Source 1 Phase, 208 – 230V, 60Hz (Power supply from outdoor unit) kW 4.89 (2.10 ~ 5.86) Capacity BTU/h 16700 (7200 ~ 20000) Running Current A 7.6 - 6.
6 Item Unit OUTDOOR UNIT Air Volume High m 3 /min (ft 3 /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.
7 Indoor unit combination Cooling Capacity (kW) Input Power (W) Outdoor Unit Operation Class (kW) Operation Mode Rating Min ~ Max Rating Min ~ Max Current (A) 208V Current (A) 230V Moisture Removal Volume (L/h) 2.8 2.82 1.81 ~ 3.27 850 390 ~ 1020 4.5 4.
8 3. Dimensions.
9 4. Refrigeration Cycle Diagram.
10 5. Block Diagram.
11 6. Wiring Connection Diagram.
12 7. Electronic Circuit Diagram.
13 8. Printed Circuit Board 8.1 Main Printed Circuit Board.
14 8.2 Noise Filter Printed Circuit Board 8.3 Display Printed Circuit Board.
15 9. Inst allation Information 9.1 Check Points QUICK GUIDE PIPING AND ELECTRICAL SPECIFICATION Piping size Indoor (ID) & Outdoor (OD) units: Possible Combination Patterns Capacity (Btu/h) Refrige- rant Gas Liquid Standard pipe length Max. Eleva- tion Min.
16 10. Inst allation Instruction 10.1 Select The Best Location 10.1.1 Outdoor Unit If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radia tion from the condenser is not obstru cted. There should not be any animal or plant whi ch could be affected by hot air discha rged.
17 Outdoor Unit Installation Guidelines Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follo w the installation guidelines below. For any of the below installation patterns, the wa ll height on the exhaust side should be 47-1/4" or less.
18 CUTTING AND FLA RING THE PIPING 1 Please cut using pipe cutter and then re move 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 e ntering the pipe.
19 10.5 Connect The Cable To The Outdoor Unit 1 Remove Control Board Cover (Met al) by loosening 2 screws. 2 Remove Valve Cover (Metal) by looseni ng 2 screws. 3 Remove Plugs. 4 Fix the conduit connectors to the knock out holes with lock-nuts, then secure them.
20 11. Operation Control 11.1 Cooling Operation 11.1.1 Outdoor fan control When cooling operation is enabled, based on outdoo r am bient temperature, fan motor control will be adjusted according to figure below: 11.1.2 Annual Cooling control This control is to enable cooling operation when outdoor am bient temperature is low.
21 11.2 Heating Operation 11.2.1 Outdoor fan control When heating operation is enabled, based on outdoor ambi ent temperature, fan motor control will be adjusted according to figure below: To .
22 12. Simult aneous Operation Control 1 Operation modes which can be selected using the remote control unit: Automatic, Cooling, Soft Dry, Heating, e-ion operation mode.
23 13. Protection Control 13.1 Freeze Prevention control (Cool) When received freeze prevention signal from indoor uni t, the compressor frequency change s according to indoor heat exchanger temperature. When indoor unit request capability OFF due to freeze c ondition , immediately the capability supply to targeted indoor unit stops.
24 13.5 Cooling overload control (Cool) This control detect outdoor pipe tempe rature and perfo rm the compressor frequency restrictio n during cooling operation. 13.6 Heating overload control (Heat) This control detect indoor pipe tempe rature and perfor m the compressor fre quency restriction during h eating operation.
25 13.8 Deice Control When outdoor pipe temperature and out door air temperature is low, deice operation starts where indoo r fan motor and outdoor fa n motor stop, indoo r unit horizontal vane close and o peration LED blink wit h compressor ON. 13.
26 13.13 Compressor Protection Cont rol (Gas leak detection control 1) Control start conditions o For 5 minutes, the compressor continuou sly operates and total current is low. o During Cooling or Soft Dry operation: Indoor intake temperature — indoor pipi ng temperature is below 39.
27 14. Servicing Mode 14.1 CU-2E18NBU 14.1.1 Pump down operation (SW1) Operate the pump down proce ss according to the following pro cedure o Confirm the valve on the li quid side and gas si de are open. o Press PUMP DOWN button (SW1) on t he Service PCB inside the outdoor u nit for more than 5 seconds.
28 14.1.3 Wiring Error check The unit capable to correct the wiring error automatica lly by following procedures. o Confirm the valve on the liquid side and gas side is o pen. o Press WIRING CHECK button (SW3 ) on the Service PCB inside the outdoor unit for more than 10 second s to start wiring check operation.
29 15. T roubleshooting Guide 15.1 Self Diagnosis Function The display screen of wireless remote control unit an d the self-di agnosis LEDs (green) on the outdoor pri nted circuit board in the outdoor unit can be used to identify the location of the problem.
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32 WA RN IN G 16. Disassembly and Assembly Instructions High Voltage are generated in the electrical parts area by the capacitor. Ensure th at the c apacitor has discharged sufficiently before proceeding with repair work. Failure to heed this c aution may result in electric shocks.
33 16.1.3 Removing the Control P.C. Board 6 Remove the drip proof cover. 7 Disconnect the connectors (lead wires of the compressor, senso r, 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.
34 3 Disconnect the fan motor connector from the control P.C. Board. 4 Loosen the 4 fan motor mounting screws then remove the fan motor..
35 17. T echnical Dat a 17.1 Operation Characteristics 17.1.1 One Indoor Unit Operation Cooling Characteristic [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fc A) Indoor unit capacity: Cooling (2.
36 Cooling Characteristic [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fc B) Indoor unit capacity: Cooling (3.2: CS -E12NKUA W), service mode frequen cy = 33Hz 53.
37 Piping Length Characteristic Cooling [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Outdoor temp erature: 95°F (DBT) Compressor Freq: Fc A) Indoor unit capacity: Cooling (2.8: CS-E9NKUAW), service mode frequency = 28Hz 2.
38 Piping Length Characteristic Cooling [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Outdoor temp erature: 95°F (DBT) Compressor Freq: Fc B) Indoor unit capacity: Cooling (3.2: CS -E12NKUA W), service mode frequen cy = 33Hz 2.
39 Heating Characteristic [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fh Heating overl oad protection : 38Hz (Outside air 75.2°F) A) Indoor unit capacity: Heating (2.8: CS-E9NK UAW), service mode frequency = 52Hz 88.
40 Heating Characteristic [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fh Heating overl oad protection : 44Hz (Outside air 75.2°F) B) Indoor unit capacity: Heating (3.2: CS -E12NKUA W), service mode frequen cy = 52Hz 88.
41 Piping Length Characteristic Heating [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Outdoor temp erature: 47°F (DBT), 43°F (WBT) Compressor Freq: Fh A) Indoor unit capacity: Heating (2.8: CS-E9NK UAW), service mode frequency = 52Hz 3.
42 Piping Length Characteristic Heating [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Outdoor temp erature: 47°F (DBT), 43°F (WBT) Compressor Freq: Fh B) Indoor unit capacity: Heating (3.2: CS -E12NKUA W), service mode frequen cy = 52Hz 3.
43 17.1.2 Two Indoor Unit Operation Cooling Characteristic [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fc A) Indoor unit capacity: Cooling (2.8 + 2.8: CS-E9N KUAW + CS-E9NKUAW), service m ode frequen cy = 48Hz 56.
44 Cooling Characteristic [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fc B) Indoor unit capacity: Cooling (3.2 + 3.2: CS-E 12NK UAW + CS-E12NK UAW), se rvice mode frequen cy = 46Hz 56.
45 Cooling Characteristic [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fc C) Indoor unit capacity: Cooling (2.
46 Piping Length Characteristic Cooling [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Outdoor temp erature: 95°F (DBT) Compressor Freq: Fc A) Indoor unit capacity: Cooling (2.8 + 2.8: CS-E9N KUAW + CS-E9NKUAW), service m ode frequen cy = 48Hz 4.
47 Piping Length Characteristic Cooling [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Outdoor temp erature: 95°F (DBT) Compressor Freq: Fc B) Indoor unit capacity: Cooling (3.2 + 3.2: CS-E 12NK UAW + CS-E12NK UAW), se rvice mode frequen cy = 46Hz 4.
48 Piping Length Characteristic Cooling [Condition] Room temperature: 81°F (DBT), 66°F (WBT) Operation condition: Hig h fan speed Outdoor temp erature: 95°F (DBT) Compressor Freq: Fc C) Indoor unit capacity: Cooling (2.
49 Heating Characteristic [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fh A) Indoor unit capacity: Heating (2.8 + 2.8: CS-E9N KUAW + CS-E 9NKUAW), service m ode frequency = 6 5Hz 84.
50 Heating Characteristic [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fh B) Indoor unit capacity: Heating (3.2 + 3.2: CS-E 12NKUAW + CS-E12NK UAW), se rvice mode frequency = 63Hz 83.
51 Heating Characteristic [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Piping Length : 24.6ft Compressor Freq: Fh C) Indoor unit capacity: Heating (2.
52 Piping Length Characteristic Heating [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Outdoor temp erature: 47°F (DBT), 43°F (WBT) Compressor Freq: Fh A) Indoor unit capacity: Heating (2.8 + 2.8: CS-E9N KUAW + CS-E 9NKUAW), service m ode frequency = 6 5Hz 5.
53 Piping Length Characteristic Heating [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Outdoor temp erature: 47°F (DBT), 43°F (WBT) Compressor Freq: Fh B) Indoor unit capacity: Heating (3.2 + 3.2: CS-E 12NKUAW + CS-E12NK UAW), se rvice mode frequency = 63Hz 5.
54 Piping Length Characteristic Heating [Condition] Room temperature: 68°F (DBT) Operation condition: Hig h fan speed Outdoor temp erature: 47°F (DBT), 43°F (WBT) Compressor Freq: Fh C) Indoor unit capacity: Heating (2.
55 18. Exploded View and Replacement Part s List Note The above exploded view is for the purp os e of parts disassembly and repl acement. The non-numbered pa rts are not kept as standard service parts.
56 REF. NO. DESCRIPTION & NAME Q’TY CU-2E18NBU 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 .
57 74 ACCESSORY CO. (D RAIN 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 8.
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