Beta 1893/134A Manual De Uso E Instrucciones página 23

OPERATION MANUAL AND INSTRUCTIONS ISTRUZIONI PER L'USO
ANALYTICAL DESCRIPTION OF CYCLES
Manual cycle
- Step 1: Recovering refrigerant gas from A/C system and automatically draining old oil.
• Open the high-pressure and low-pressure valves.
• Press the key to select the -MANUAL- function; press the
• Press the key to select the -RECOVERY- function; press the
• This will start the refrigerant gas recovery phase.
• After the recovery phase has been completed, the station will automatically check for refrigerant gas pockets in the A/C
system, and the display will show the recovered amount of refrigerant gas.
• After this test, the station will automatically drain old oil into its tank (see figure 4).
• If pressure increases during the test, the station will automatically recover any refrigerant gas pockets.
- Step 2: Vacuum phase and checking A/C system for tightness (vacuum time and tightness testing time are set by operator).
• Open the high-pressure and low-pressure valves.
• Press the key to select the -MANUAL- function; press the
• Press the keys to select the -VACUUM-function; press the
• Use the keys to select the required vacuum time (recommended time: 20 to 30 minutes); press the
save the value.
• Press the key to select the vacuum testing function; then press the
time; finally, press the
• This will start the Vacuum phase. The display will show the time remaining to the end of the operation, and vacuum in
Mbar. After the set time has elapsed, the station will test tightness through a vacuometer, for the preset time. After the
tightness test has been completed, the station will beep repeatedly, to indicate that the cycle has been completed.
If, during the tightness test, a leak should occur, the station will beep persistently.
- Step 3: Feeding fresh oil into A/C system.
• After the vacuum phase has been completed, the compressor of the A/C system can be filled with oil, if need be, through its
tank (see figure 4), by taking the following steps.
• Open the high-pressure and low-pressure valves.
• Press the key to select the -MANUAL- function; press the
• Press the key to select the -FEEDING OIL- function; press the
• Press the keys to set the required amount of fresh oil; press the
• For the tracer, take the same steps as with oil (recommended quantity: 5/10 g max).
- Step 4: Automatically filling A/C system with refrigerant gas.
• Open the high-pressure and low-pressure valves.
• Press the key to select the -MANUAL- function; press the
• Press the key to select the -FILLING- function; press the
• Press the keys to set the amount of refrigerant gas (in grams) to fill the A/C system with; press the
• This will start the gas filling phase; the display will show the amount of refrigerant gas required to reach the set charging value.
• The station will beep repeatedly, to indicate that the phase has been completed.
If the message 'Cylinder Empty' is displayed, the storage tank will have to be filled.
key, to save the value. Press the
key.
key.
key.
key.
keys to set the required vacuum testing
key to go back to vacuum; then press the
key.
key.
key.
key.
key.
EN I
key to
key twice.
key.
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