Universal Air Conditioning General Installation Instructions
A. Installing the Condenser
NOTE: with the radiator and condenser coil installed there should be ½" to ¾" space between radiator core and condenser fins.
- Place condenser in the mounting position to determine proper mounting locations.
- Install mounting brackets (if required) to flanges of condenser. (If additional brackets are needed they can be ordered from Jon's Nostalgic Air Parts)
NOTE: Rework of some automobile parts may be necessary to install condenser.
- Install Condenser with the ½" inlet at the top and the 3/8" outlet at the bottom
- In some cases, it may be necessary to pre-connect refrigerant hoses to the condenser before installation of the condenser.
- Reinstall the radiator, reconnect all lines and hoses and replace coolant
- Install original fan or replacement fan and fan spacer if required.
B. Installing the Receiver Drier
- Determine the location of the receiver drier. Select a good place where hose connections will be easily made and where the sight glass can be viewed when charging and servicing the air conditioning system.
NOTE: DO NOT use the sight glass when using R-134A refrigerant
- Make sure that direction of flow is towards the evaporator.
- Anchor receiver drier to position
C. Installation of Evaporator Unit
- Properly position evaporator to the bottom line of the dash or to your desired locations. Mark off the location for mounting bracket screw holes, holes for drain tubes and holes in firewall for refrigerant hoses to pass through. Grommets may be necessary for some installations (Grommets are available from Jon's Nostalgic Air Parts)
- Sometimes it may be necessary to relocate items along underside of dash to make room for the evaporator.
- Set evaporator aside and make holes through the firewall for refrigerant Hoses. Use a hole saw to make holes through the firewall for the refrigerant hose. Please match the whole saw to the grommets supplied in your kit.
CAUTION: CHECK FOR CLEARANCE ON ENGINE SIDE OF FIREWALL.
- Use drive punch and hammer or a small hole saw, ¾" to make holes in floor board for drain tubes to pass through
CAUTION: PLEASE CHECK FOR CLEARANCE ON THE UNDERSIDE VEHICLE
- Use small drill, approximately 5/32", to make holes in metal framing of underside of dash for evaporator mounting brackets. Evaporator case mounting brackets are a universal type angle bracket and may be adjusted to meet any mounting situation.
CAUTION: DO NOT DRILL INTO RADIO, HEATER, WIRING LOOMS, AND DUCT WORK, ETC. DO NOT DRILL INTO SIDE OF EVAPORATOR CASE.
- Anchor evaporator to position (it may be necessary to pre-connect refrigerant hoses to evaporator before anchoring evaporator) Refer to drawing to determine proper hose and fitting for the job.
D. Evacuating the system
NOTE: Evacuation and charging should only be performed by a Certified Air Conditioning Technician
In order to remove all of the moisture from the air conditioning system you evacuate the a/c system for 45 minutes. The pressure on the low side gauge should reach and maintain a -28 psi. If this pressure is not maintained check all the connections for leaks. (if there is one drop of moisture you can lose up to 15% of your vent temperature)
The average charge of a universal air conditioning system takes 38 - 48 ounces of R-134A refrigerant.
CAUTION: THE HIGH SIDE GAUGE SHOULD NOT EXCEED 200 PSI
Check for leaks by using a spray bottle with household dish detergent and water. Spray the liquid on every connection making up the a/c system. (check the leak after the system has stabilized, or has been running for 5 minutes)( make sure the vehicle is turned off when checking for a leak)
If you need any assistance please call Jon at Jon's Nostalgic Air Parts. He is available seven days a week to assist you with your installation.
Phone: 1 - 888 - 977 - 8889