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Installation and Operation
Preliminary Checks
Successful use of your Kool Kare unit depends on several
external factors. The following information explains these.
Precondition Vehicle
The refrigerant in the vehicle A/C system is recovered faster
and more completely when the components are warm.
1. Connect the service hoses.
To efficiently recover refrigerant, the vehicle should be at
normal operating temperature. Run the engine until normal
operating temperature is reached, with
• The A/C system off, and
• The hood lowered as much as possible without
damaging or crimping the service hoses.
2. Turn off the engine when normal operating temperature
is reached. The unit and vehicle are ready to recover
and recycle refrigerant.
Allow Adequate Evacuation Time
Evacuate the vehicle system for a minimum of 30 minutes. This
helps ensure vehicle A/C system is free of non-condensable
gases (mostly air) and moisture.
3 Sometimes a small amount of refrigerant is left in the
vehicle A/C system that is not practical to recover. If
recovery time is too short or if vehicle components are
cold, this parasitic refrigerant can expand during a
vacuum hold cycle, a leak test, and falsely report a leak
condition that does not really exist.
Follow Vehicle Manufacturer’s A/C Service Procedures
When charging, a slow charge condition may occur due to
pressure equalization between your Kool Kare unit and the
vehicle A/C system. Finish charging by:
• Closing the high-side manifold valve,
• Starting the engine, and
• Turning the A/C system ON.
3 Never operate the vehicle A/C system with the highside
manifold valve open.
3 It is the technicians responsibility to be familiar with
vehicle manufacturer recommended service
procedures.
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