INSTRUCTIONS MANUAL
blanket (i) from the storage tank (do not touch or disconnect the wires of the heater blanket).
Extreme care must be taken when removing the storage tank, so as to avoid pulling wires loose and damaging the copper tubing.
Remove the storage tank (f) from its seat, leaving the heater blanket around the scale plate. Rest the storage tank on a stand at least 10” in height. Switch on the MACHINE. Be careful not to touch any electrical wires. Wait at least 10 seconds and press STOP to silence the alarm. Press the INCREASE and ARROW keys simultaneously and hold down for about 5 seconds. The value displayed at this point will correspond to the scale zero value. Press down lightlyon the scale plate; the value should increase. If it does not, replace the charge cell. Press the ENTER key to memorize the value. In this phase, take care that nothing touches the scale plate). Place the reference weight (50 lbs) carefully at the center of the scale plate and check that the displayed value increases accordingly. Press the SEL keyand use the INCREASE & ARROW keys to type in the 4 figures of the reference weight. Press ENTER. The display reading should be the reference weight minus the weight of the empty bottle (tare weight).
Remove the reference weight. Switch off the machine and disconnect from main power supply. Replace the storage tank in its seat on the scale plate. Switch on the MACHINE, taking care not to touch any electrical wires. Check calibration: place a known reference weight on the bottle and check that the displayed availability value increases by the value of the known reference weight ±2%. Remove the reference weight. Switch off the machine and disconnect from main supply. Replace the storage tank locking bolts. Open the red and blue storage tank valves. Replace the rear plastic cover.
NOTE: In order to check the scale calib ration the unit must b e displaying a positive value for REFRIGERANT AVAILABLE, if the display is reading zero additional weight must b e added to the top of the tank to get a positive reading. The known weight is then added and the change in weight is verified as the known weight.
VACUUM PUMP
Perform the operations listed below on a routine basis in order to ensure good operation of the vacuum pump.
M.1) Oil
M.2) Oil change
M.3) Decontamination
When
M.1) Oil top-up
This operation must be performed when the level of the oil falls to less than half on the indicator (4 - Figure 15). To refill the oil, perform the steps listed below in the order given. Refer to Figure 13.
1.Disconnect the
2.Unscrew the filling cap (3).
3.Pour oil into the tank until the oil level is about half on the indicator (4).
4.Replace the oil cap (3) and tighten down.
M.2) Oil change
The vacuum pump oil must be replaced once a season and in any case every time the refrigerant filters are replaced. The oil must also be changed whenever it changes color, becoming dark and turbid, since this is a sign that it has been contaminated and has absorbed humidity. Before beginning the oil change procedure, procure a container of
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