Basic Setup - MasterCool R134a Instruction Manual

WARNING! If the manifold is connected to a pressure or
vacuum source and displays actual readings, do not attempt
to zero out the reading by pressing the enter button. This can
offset the reading.
BASIC SET-UP
The following settings are pre-programmed into the unit.
• Pressure: PSI / IN-Hg
• Temperature: °F
To change these settings please follow the procedure below:
• Press the POWER button to turn the unit ON. Allow 10-15 seconds for warm-up
and readings to stabilize. (You will see all characters and units countdown
9999,8888,7777... ) Once the warm-up is complete, pressure and
temperature readings will appear.
• Press the UNITS button to select the desired pressure/temperature. Scroll
through PSI, Kg/cm
in ˚C
SETTING MANUFACTURER/MODEL/YEAR FOR REFRIGERANT & OIL CAPACITIES
• Press VEHICLE
VEHICLE
to go in alphabetical order/VEHICLE
order.
Manufacturers Include: Acura, Alfa Romeo, Aston Martin, Audi, BMW, Buick,
Cadillac, Chevrolet, Chrysler, Citroen, Daewoo, Daihatsu, Dodge, Eagle,Fiat,
Ford, Geo, GMC, Honda, Hummer, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia,
Lancia, Land Rover, Lexus, Lincoln, Mazda, Mercury, Mini, Mitsubishi, Mercedes
Benz, Nissan, Oldsmobile, Opel-Vauxhall, Peugeot, Plymouth, Pontiac, Porsche,
Renault, Rover, Saab, Saturn, Scion, Seat, Skoda, Smart, Ssangyong, Subaru,
Suzuki, Toyota, Volkwagen, Volvo
• Press ENTER once desired manufacturer is found.
• Press VEHICLE
and hold VEHICLE
button to go back.)
• Once you have found the desired model/year, you can change the units of
measure by pressing the UNITS button. Scroll through your options of LBS/OZ,
LBS/ML, KG/OZ, KG/ML .
• Press ENTER once desired model, year and measurement is found.
• Refrigerant & Oil Capacity measurements will display at the top of the LCD
screen.
• Press ENTER again to begin pressure readings.
PRE-SERVICE INSTRUCTIONS
1. Close both valves on the manifold gauge set by turning the High and Low
knobs clockwise.
2. Attach the High and Low couplers to the Red and Blue hoses.
If using manual couplers, open the plunger by turning the knob counter-clock
wise prior to connection to the system. (fig. A)
3. Connect the Red hose to the High port and the Blue hose to the Low port on
the manifold gauge.
HOOK-UP FOR SYSTEM DIAGNOSIS
To properly diagnose the problem in the A/C system, first check the
system's overall performance. This includes testing the system's pressure and
refrigerant flow. The system pressure can be checked with the manifold gauge
set.
NOTE: Be sure that the hand valves 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. Make sure the couplers are securely snapped.
3. If using manual couplers, move the plunger down within the coupler by turning
the knob clockwise in order to open the port valves and start refrigerant flow.
2
, Bar, Mpa in ˚F. Continue to scroll for pressures to display
or VEHICLE
button to scroll through each manufacturer.
to scroll through each model/year. For faster scrolling, press
or (If you pass the model/year you desire use the
in reverse alphabetic
3