90S Quattro (Canada) V6-2.8L (AAH) (1993)
Always follow manufacturer's instructions when using a refrigerant/recovery/recycling/recharging unit.
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following refrigerant recovery/recycling/recharging unit manufacturer's instructions, discharge A/C system into refrigerant
recovery/recycling/recharging unit
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disconnect power supply from A/C clutch to prevent accidental compressor operation with A/C system discharged
Note
Ensure initial set-up has been performed on the refrigerant recovery/recycling/recharging unit before discharging A/C system.
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connect red high pressure hose -A- of refrigerant recovery/recycling/recharging unit to high pressure service valve (fitting) on vehicle and open
coupler valve
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leave blue low pressure hose -B- of refrigerant recovery/recycling/recharging unit disconnected
Note
Only a high pressure service valve is used for A/C system servicing. A low pressure service valve is not installed in the A/C system. Perform all A/C
system service operations (i.e. discharging, evacuating and charging) through the high pressure service valve only
EVACUATING AND RECHARGING
Note
Follow all safety measure, in safety measures section, when evacuating and recharging the A/C refrigerant system.
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follow refrigerant recovery/recycling/recharging unit manufacturer's instructions for evacuating and recharging A/C system
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evacuate refrigerant system for a minimum of 30 minutes
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when recharging A/C system, add correct amount of refrigerant and PAG oil to system.
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after system recharge, manually rotate A/C compressor approx. 10 turns before starting engine. Start engine with A/C OFF. After idle speed has
stabilized, switch A/C ON and let engine idle (compressor running) for a minimum of two minutes before raising engine speed.