11
Pre-Charged lines and Quick Connects
• Route the suction and liquid line sets between the condensing unit and evaporator coil following the piping guidelines
identified in this manual.
• Remove the dust caps from the quick connect fittings and verify that the o-rings are intact.
• Wipe the coupling seals and threaded surfaces with a clean cloth to prevent contamination.
• Lubricate the threads and o-rings with Polyol Ester oil.
• Thread the coupling halves together by hand to ensure proper thread mating.
• Tighten with a wrench until the coupling bodies “bottom” or until there is definite resistance.
• Tighten an additional ¼ turn to ensure proper brass-to-brass seating.
• Once the system is opened and pressurized, check each fitting for refrigerant leaks. If a leak is detected, tighten until
the leak stops.
Do not loosen and disconnect the quick connect fittings before reclaiming the refrigerant and depressurizing the
system. Disconnecting a pressurized system can result in injury!
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