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6-4. Remove the hose from the vacuum pump and place it on the charging cylinder. See figure 23B. Open valve C. Discharge the line at the manifold connection. 6-5. The system is now ready for final charging. 7. Recharge as follows: 7-1. Rotary compressor 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 is installed as the system is opened. 7-2. Connect the charging cylinder as shown in figure 21B. With valve C open, discharge the hose at the manifold connection. 7-3. Open valve A and allow the proper charge to enter the system. Valve B is still closed. 7-4. If more charge is required, the high-side will not take it. Close valve A. 7-5. With the unit running, open valve B and add the balance of the charge. a. Do not add the liquid refrigerant to the low- side. b. Watch the low-side gauge, allow pressure to rise to 30 lbs. c. Turn off valve B and allow the pressure to drop. d. Repeat steps B and C until the balance of the charge is in the system. 7-6. When the unit is operating correctly, use the pinch-off tool with the unit still running and the clamp on the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos solder and solder the pinch-off tube closed. Turn off the unit, allow setting for a while and then test the leakage of the pinch-off connection. —11— —12— 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 and service valve. B A B A B A COMPOUND GAUGE SEE INSETS BELOW CAPILLARY TUBE EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR CONDENSER (HIGH PRESSURE SIDE) EXTERNAL VACUUM PUMP LO HI CHARGING CYLINDER MANIFOLD GAUGE C Figure 20A-Pulling Vacuum Figure 20B-Charging 3. INSTALLATION This air conditioner is designed with a button-down chassis so it can be easily installed in a window. 3.1 SELECT THE BEST LOCATION 1. To prevent vibration and noise, make sure the unit is installed securely and firmly. 2. Install the unit where the sun does not shine directly on the unit. 3. The outside of the cabinet must extend outward for at least 10" and there should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner. All side louvers of the cabinet must remain exposed on the outdside of the structure. CAUTION 4. Install the unit slanted slightly so the back is slightly lower than the front (about 1/4"). This will force condensed water to the outside. 5. Install the unit with the bottom about 30"~60" above the floor level. 3.2 HOW TO INSTALL 3.2.1 WINDOW REQUIREMENTS NOTE: All supporting parts should be secured to firm wood, masonry, or metal. 1. This unit is designed for installation in standard double hung windows with actual opening widths of 22" to 36". The upper and lower sash must open sufficiently to allow a clear vertical opening of 13" from the bottom of the sash to the window stool. 2.If storm window presents interference, fasten a 2" wide wood strip to the inner window sill across the full width of the sill. The wood strip should be thick enough to raise the height of the window sill so that the unit can be installed without interference by the storm window frame. See Figure. 23. Top of wood strip should be approximately 3/4" higher than the storm window frame (STORM WINDOW FRAME) or wood strip (OUTDOORS) to help condensation to drain properly to the outside. 3. Install a second wood strip (approximately 6" long by 11/2" wide and same thickness as first strip) in the center of the outer sill flush against the back off the inner sill. This will raise the L bracket as shown Figure. 23. 4. If the distance between STORM WINDOW FRAME and WOOD STRIP MOUNTED ON TOP OF INNER SILL is more than 1", two of wood strip are not necessary. INSIDE OUTSIDE ABOUT / " Over 20" HEAT RADIATION FENCE AWNING COOLED AIR 30"-60"1 4 Figure 21 INNER SILL OUTER SILL INDOORS OUTDOORS Figure 22 WOOD STRIP MOUNTED 1" MAX. ON TOP OF INNER SILL INNER SILL WOOD STRIP FOR L BRACKET INDOORS Figure 23 3/4" CLEARANCE STORM WINDOW FRAME OUTER SILL OUTDOORS —13— Installation TYPE B: 4EA (WOOD SCREW) TYPE A: 11EA (SHORT SCREW) HARDWARE TYPE C: 3EA (L BACKET) DRAIN PIPE TYPE E: 1EA (SASH SEAL) (Not adhesive backed) TYPE D: 1EA (SEAL STRIP) (Adhesive backed) TYPE F: 2EA (GUIDE PANEL) 10mm16mm 3.2.2 BEFORE INSTALLATION 1. Insert the guide panels into the guides of the air conditioner. Fasten the curtains to the unit with screws (TYPE A) as shown Figure. 24. 2. Cut the adhesive-backed seal strip (TYPE D) to the window width. Remove the backing from the seal strip and attach the seal strip to the underside of the bottom window. (Figure. 25) 3.2.3 NOW START INSTALL...

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