Robinair 342000 Refrigerant Service Solution - Manual (Page 16)

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© 1999 Robinair, SPX Corporation
DIAGNOSING SYSTEM OPERATION USING
SNAPSHOT MODE
WARNING
Always wear eye protection and protective clothing when
working with refrigerants. Observe all warnings at the
beginning of this manual.
Be sure the vehicle is in PARK before turning on the engine.
Provide adequate ventilation or pipe exhaust to outside.
Vehicle exhaust fumes can cause injury or death.
To assist in system diagnostics, the 342000 Snapshot mode allows the techni-
cian to monitor and record key operating information from the vehicle being
serviced. This data includes:
• Date/Time
• Ambient Temperature and Humidity
• Low Side System Pressure minimum value
• High Side System Pressure maximum value
• Front Duct Temperature minimum value
• Rear Duct Temperature minimum value
• Refrigerant Identifier Results
Additionally, the amount of refrigerant recovered and refrigerant charged can be
captured after completion of each of these operations.
SNAPSHOT MODE OPERATION
Snapshot Mode displays operating data about the vehicle’s A/C system,
including refrigerant purity, system pressure, A/C outlet temperature; also
A/C outlet air velocity with optional anemometer attachment. The following
steps will guide you through the Snapshot Mode operation:
1. Press the SNAPSHOT key or the SCROLL MENU key to reach a
screen with the SNAPSHOT key.
2. You will be prompted to perform the following steps:
a. Connect service hoses.
b. Open the service couplers.
c. Connect both the red (15 ft.) and the blue (30 ft.) duct temperature
probes.
d. Start the vehicle and turn the vehicle A/C system to Maximum Cool or
Recirculate setting.
Operating Instructions
IMPORTANT:
Let the A/C
system run
long enough to
reach typical
operating tem-
peratures/
pressures.
IMPORTANT:
The automatic
air purge
periodically
vents air. Any
brief release of
air you hear is
normal
activation of the
air purge.