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Manual HVAC Service Specifications

MANUAL HVAC SERVICE SPECIFICATIONS

Application Specification
Compressor Type CVC-7
Compressor Belt Tension (1)
Accumulator Replacement (2) 1.5 ozs.
Compressor Replacement (3) 2.5 ozs.
Condenser Replacement (3) 1 ozs.
Evaporator Replacement (3) 2 ozs.
Total System Oil Capacity (4) 5 ozs.
Refrigerant R134a Charge 1.35 Lbs.
System Operating Pressures (5)
High Side 165-229 psi (11.6-16.1 kg/cm2 )
Low Side 34-45 psi (2.4-3.164 kg/cm2 )
(1) Belt tension is maintained automatically by belt tensioner.
(2) Add PAG oil equal to amount of oil drained from old accumulator plus specified additional amount.
(3) If more than specified amount of PAG oil was drained from a component, add equal amount drained.
(4) Use PAG (Polyalkylene Glycol) oil (GM P/N12378526).
(5) Approximate operating pressures with relative humidity above 60 percent, ambient temperature at 76-85°F (24-29°C) and engine at idle.
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