Using Multi-Refrigerant Can Opener

1. Connect pressure gauge and manifold assembly No. J-23575 or equivalent. Keep both service valves in mid-position.
2. Close both gauge hand valves and disconnect service hose from vacuum pump.
3. Connect service hose to center of refrigerant can opener. Close valves on dispenser.
4. Attach refrigerant cans to opener. Refer to A/C Data Table for proper weight of refrigerant for vehicle being serviced. On Semi-Automatic Climate Control Systems, install a jumper wire across the two terminals of the cycling pressure switch harness connector.
5. Open one petcock valve and loosen center service hose at gauge to allow refrigerant to purge air from hose. Tighten hose and close petcock valve.
6. Open suction gauge hand valve and one petcock valve. Do not open high pressure gauge hand valve.
7. Start engine and set A/C system controls to maximum cooling position. Compressor will help pull refrigerant gas into suction side of system. Refrigerant cans can be placed in pan of water no hotter than 125°F to aid charging process.
8. When first can is empty, open next valve to continue charging until specified amount of refrigerant is in system. Frost line on can may be used as a guide when specifications call for using part of full can. If a scale is available, weigh cans before and during charging procedure to ensure accurate filling.
9. When system is fully charged, close suction gauge hand valve and all petcock valves, and remove jumper wire if applicable.
10. Operate system for 5-10 minutes to allow it to stabilize and to determine if system cycles properly.
11. After checking operation of system, back-seat suction and discharge service valves to normal operating position by turning valves fully counterclockwise.
12. Loosen pressure gauge and manifold assembly service hoses to release refrigerant trapped in hoses. Remove pressure gauge and manifold assembly and install dust caps on fittings.