Battery Replacement - MasterCool Mini-fold Instrucciones De Operación

• Switch Pressure Unit: Press and hold
twice to switch temperature units. Press
NOTE: The gauge will exit setting status after 15 seconds of inactivity.

BATTERY REPLACEMENT

1. Please take off the rubber boot, loosen the two screws and remove the rear case.
2. Use a flat screwdriver to take out the battery in the same direction as shown below:
3. Place a new battery into the compartment with the flat side facing out. Replace the rear cover, screws (please note the
screws must be tightened) and rubber boot.
PRE-SERVICE INSTRUCTIONS
1. Before connecting to the system, zero the gauge if necessary.
2. Close both valves on the manifold gauge set by turning the high and low knobs clockwise.
3. Connect the (red) hose to the high side port and the (blue) hose to the low side port on the manifold gauge.
TESTING AND CHARGING
To properly diagnose the problem in the R/AC system, first check the system's overall performance. This includes moni-
toring the system's pressure as well as leak testing. Your manifold gauge set will give accurate readings of your system's
pressure.
NOTE: Be sure that the knobs on the manifold gauge set are in the closed position. Always wear gloves and
safety goggles when working with refrigerant.
1. Remove the protective caps from the system ports. Check for leaks at the ports.
2. Connect the low side service hose (blue) to the suction side of the compressor. Connect the high side service hose
(red) to the discharge side of the compressor.
3. If using adapters, make sure that they are fully tightened and piercing the access valve. Failure to properly access the
valve core will prohibit refrigerant flow.
IMPORTANT NOTES
• A system that has been opened or one that is found to be excessively low on refrigerant pressure as a result of a leak,
must be fully evacuated by means of recovery machine and deep vacuum pump.
• A system that has been evacuated must be repaired, leak tested and evacuated to a required level of vacuum.
• If charging on the liquid or high side, use only the high side valve on the manifold gauge set. Make sure the low side
valve is closed.
• After charging, test the system by turning on the engine or system and running the A/C with both valves closed on the
manifold.
• After testing, disconnect the hoses from the system and make sure to use a recovery/recycling machine to evacuate
any refrigerant remaining in the hoses or manifold.
WARNING: This product can expose you to chemicals including Di (2-ethylhexyl) phthalate, lead and lead compounds, which are known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
button for 3 seconds until "R" shows and flashes, then press
or to select. Press
www.mastercool.com
to confirm.
button
3