美国犯罪学学会的-SC005保护低方面的服务港口的帽子

Protective Low-side Service Port cap 1. Locate the air conditioners low-side service port.(see service manual) DO NOT use the high-side service port. 2. Remove and recover any residual R-12 using proper recycling equipment. It is illegal to vent R-12 into the atmosphere. 3. Open the air conditioner and make any necessary repairs. Remove the mineral oil. (It is not harmful to have some residual mineral oil). 4. Remove and replace the filter/dryer. Replace with a unit containing XH-7 or XH-9 desiccant material. 5. Replace the old mineral oil with either PAG or Ester oil. (See service manual for proper amount). 6. Clean the external threads of the A/Cs low and high-side service ports with solvent and a wire brush. This is required for the thread-locking adhesive on the adapter fittings to work. 7. Screw the low-side retrofit valve (the smaller outside diameter fitting with a new valve core) onto the low-side service port. 8. Evacuate the system at 29 of vacuum (30 minutes for single A/C units and 45 minutes for dual A/C units). 9. Start engine and turn air conditioner to maximum cool. Add R-134a by using standard R-134a recharge equipment. Check owners manual or plate on the A/C for refrigerant capacity. Do not rill over 85% of the recommended capacity. 10.Complete the retrofit label and place it on an accessible surface to conform to EPA regulations