User manual PANASONIC CW-XC244HU

[. . . ] RAC0310006C1 E9 Service Manual Room Air Conditioner CW-XC184HU CW-XC244HU WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products deal with in this service information by anyone else could result in serious injury or death. R © 2003 Matsushita Electric Industrial co. , Ltd. [. . . ] 4) Remove the hose from the vacuum pump and place it on the charging cylinder. Discharge the line at the manifold connection. 5) The system is now ready for final charging. Recharge as follows : 1) Refrigeration cycle systems are charged from the High-side. If the total charge cannot be put in the High-side, the balance will be put in the suction line through the access valve which you installed as the system was opened. 2) Connect the charging cylinder as shown in Fig. With valve C open, discharge the hose at the manifold connection. 3) Open valve A and allow the proper charge to enter the system. 4) If more charge is required, the high-side will not take it. 5) With the unit running, open valve B and add the balance of the charge. Do not add the liquid refrigerant to the Lowside. Watch the Low-side gauge; allow pressure to rise to 30 lbs (0. 2MP). Turn off valve B and allow pressure to drop. Repeat steps B and C until the balance of the charge is in the system. 6) When satisfied the unit is operating correctly, use the pinch-off tool with the unit still running and clamp on to the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos brazing rod and braze pinch-off tube closed. Turn off the unit, allow it to set for a while, and then test the leakage of the pinch-off connection. --11-- Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. CONDENSER (HIGH PRESSURE SIDE) COMPOUND GAUGE MANIFOLD GAUGE B CAPILLARY TUBE A SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR LOW HI A B EXTERNAL VACUUM PUMP CHARGING CYLINDER B A C Figure 17A-Pulling Vacuum Figure 17B-Charging --12-- 3. INSTALLATION 1/4" Bubble 3. 1 HOW TO INSTALL THE UNIT 1. To avoid vibration and noise, make sure the unit is installed securely and firmly. Install the unit where the sunlight does not shine directly on the unit. [. . . ] (If the compressor temperature is high, remove the overload, cool, and retest. ) Check the voltage. If voltage is not within these limits, call an electrician. (If the compressor temperature is high, remove the overload, cool, and retest. ) Overload Compressor cycles on overload. Voltage Overload --26-- COMPLAINT Compressor cycles on overload. CAUSE Fan motor REMEDY If not running, determine the cause. Remove the cabinet, inspect the interior surface of the condenser. [. . . ]