IMPORTANT NOTICE-PLEASE READ
IMPORTANT NOTICE-PLEASE READ
FOR MAXIMUM SYSTEM PERFORMANCE
VINTAGE AIR RECOMMENDS THE FOLLOWING:
LUBRICANT CAPACITIES
134a SYSTEM
R-12 SYSTEM
REFRIGERANT CAPACITIES
CHARGE WITH 2.0 lb. OF REFRIGERANT
CHARGE WITH 1.8 lb. (1lb. 12oz) OF REFRIGERANT
NEW COMPRESSOR - NO ADDITIONAL OIL NEEDED
USED COMPRESSOR - CONSULT VINTAGE AIR
SERVICE INFO:
EVACUATE THE SYSTEM FOR 35-45 MINUTES WITH SYSTEM COMPONENTS
(DRIER, COMPRESSOR, EVAPORATOR AND CONDENSER) AT A TEMPERATURE
OF AT LEAST 85° F. ON A COOL DAY THE COMPONENTS CAN BE HEATED
WITH A HEAT GUN
BY RUNNING THE ENGINE WITH THE HEATER ON
BEFORE EVACUATING. LEAK CHECK AND CHARGE TO SPECIFICATIONS.
OR
*18” HEAVY DUTY FAN
* FAN SHROUD
*16” SPAL AUXILIARY CONDENSER FAN PACKAGE (PART #
)
302686-CCA
THIS KIT DOES NOT CONTAIN HEATER HOSE. YOU MUST PURCHASE 8 FEET OF 5/8” DIA.
HEATER HOSE FROM VINTAGE AIR(31800-VUD) OR FROM YOU LOCAL PARTS RETAILER
THIS KIT DOES NOT CONTAIN HEATER HOSE. YOU MUST PURCHASE 8 FEET OF 5/8” DIA.
HEATER HOSE FROM VINTAGE AIR(31800-VUD) OR FROM YOU LOCAL PARTS RETAILER
THE PROPER AMOUNT OF REFRIGERANT IS CRITICAL TO PROPER SYSTEM
OPERATION. VINTAGE AIR RECOMMENDS OUR SYSTEMS BE CHARGED BY
WEIGHT WITH A QUALITY CHARGING STATION OR SCALE.
1968-76 CORVETTE
GEN IV
4
SAFETY SWITCHES:
YOUR VINTAGE AIR SYSTEM IS EQUIPPED WITH A BINARY PRESSURE SAFETY
SWITCH. A BINARY SWITCH (11078-VUS) DISENGAGES THE COMPRESSOR
CLUTCH IN CASE OF EXTREME LOW PRESSURE CONDITION (REFRIGERANT LOSS)
OR EXCESSIVELY HIGH HEAD PRESSURE (406 PSI), TO PREVENT COMPRESSOR
DAMAGE OR HOSE RUPTURE. A TRINARY SWITCH (11076-VUS) COMBINES
HI/LO PRESSURE PROTECTION WITH AN ELECTRIC FAN OPERATION SIGNAL AT
254 PSI, AND MAY BE SUBSTITUTED FOR USE WITH ELECTRIC CONDENSER FANS.
COMPRESSOR SAFETY SWITCHES ARE EXTREMELY IMPORTANT SINCE AN A/C SYSTEM
RELIES ON REFRIGERANT TO CARRY LUBRICATION THROUGH THE SYSTEM.
GEN IV 1968-76 CORVETTE
w/o AC
901174-PCZ REV A 8/3/05, GEN IV 68-76 CORVETTE w/o AC INSTRUCTIONS PG 4 OF 29
