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Now downloading free:National CW-SC120AA

National CW-SC120AA free download

Air conditioning and climatization devices

File information:
File name:CW-SC120AA.part4.rar
Size:562 kB
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Mfg:National
Model:CW-SC120AA 🔎 CWSC120AA
Original:CW-SC120AA 🔎
Descr:Service manual for Room Air Conditioner
Group:Electronics > Consumer electronics > Air conditioning
Uploaded:27-06-2005
User:dupator
Multipart: 0  1  2  3

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Extracted files:1
File name CW-SC120AA.pdf

Order No. MAC0007027C3 Room Air Conditioner CW-SC120AA SPECIFICATIONS Specification 1 Model Phase Voltage Frequency Cooling Capacity Running Current Input Power EER Starting Current Compressor Output Fan Motor Output Noise Level CW-SC120AA Single 220 V 50 Hz 3.55 kW 12,100 Btu/h 5.6 A 1.21 kW 2.93 W/W 25 A 950 W 70 W Indoor (High / Low): 47 / 44 dB(A) Outdoor (High / Low): 56 / 53 dB(A) 2.1 Ltr/h 4.4 Pint/h 9.2 m3/min. 320 Ft3/min. Height: 14-25/32 inches (375 mm) Width: 22-1/16 inches (560 mm) Depth: 24-1/32 inches (610 mm) 49 kg 108 Ib 700 g 24.7 oz 1 Moisture Removal Air Circulation Dimensions Net Weight Refrigerant (R-22) 1. Dimensions 2 1.1. Top View, Front View & Side View 1.2. Unit Item A - Width B - Height C - Depth D E F G H I J K L M N O P Q Unit: Inch (mm) 22-1/16" (560) 14-25/32" (375) 24-1/32" (610) 22-9/32" (566) 5-29/32" (150) 6-1/2" (165) 1-11/16" (43) 2-31/32" (75) 0-15/32" (12) 7-1/8" (181) 1-23/32" (44) 9-17/32" (242) 5-7/16" (138) 1-3/16" (30) 3-5/8" (92) 2-17/32" (64) 0-23/32" (18) 3 Item R S T U V Unit: Inch (mm) 11-13/16" (300) 3-5/32" (80) 2-3/4" (70) 1-5/16" (33) 5-1/2" (140) 2. Wiring Diagram 2.1. 2.2. Resistance of Fan Motor windings and the rated 4 Capacitor. Connection Blue - Yellow Yellow - Orange Red - Yellow Capacitor CWA921009 43.5 29.1 78.1 CWA31609 (3.5 F, 400VAC) 2.3. Resistance of Compressor windings and the rated Capacitor. Connection C-R C-S Capacitor 2KS206D5AA04 2.234 2.630 CWA31504 (35 F, 370VAC) Note: Resistance at 20°C of Ambient Temperature. 3. Refrigeration Cycle Diagram 5 Item A B C D Pressure (MPa) 1.93 ~ 2.05 1.91 ~ 2.01 0.52 ~ 0.56 0.50 ~ 0.54 Temperature (°C) 69 ~ 85 35 ~ 45 6 ~ 10 7 ~ 11 4. Air Conditioner Performance Evaluation ntake & Discharge Air Temperature Difference 8°C and over (14.4°F) 8°C and over (14.4°F) Current Drain -As specified. -Higher than specified. -Higher than specified. -Lower than specified. -Higher than specified by 50%. Determination -Nothing wrong. -Nothing wrong, outdoor Remedy -None. -Improve heat radiation. -Excessive amount of refrigerant. -Improve heat radiation. -Locate and repair leak. -Flush refrigeration cycle. -Replace the compressor. temperature is too high, heat radiation is not efficient. Under 8°C (14.4°F) -Something is preventing heat radiation. Under 8°C (14.4°F) -Leakage of refrigerant or -Compressor defect. refrigerant system is blocked. Under 8°C (14.4°F) Note: Room air humidity is relatively higher, the temperature difference will be smaller. 5. Troubleshooting Guide Warning: Disconnect unit from electrical power supply before making any electrical checks. 6 Trouble Fan Motor and Compressor won't run. Check -Supply Voltage -Fuse Box or Circuit Breaker. -Power cord or Wiring Harness. Result -Less than 10% by Rated. -Open Contacts. -Pulled loose or Shorted. -Higher than room temp. -Locked Fan. -Shorted / Open circuit. -OHM Meter doesn't Deflect. Shown. Cause -Temporary or Permanent? -Customer Restarted unit R



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