Vogt P-24AL, Руководство по обслуживанию

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P24AL & P34AL Service Manual
SERVICING OPERATIONS
12/2016
9-4
Figure 9-2
Freeze Timer (1TR)
Freezer Pressure Switch (optional). The freezing time period for producing ice of a desired
thickness is controlled by the freezer pressure switch (2PS), Figure 9-3, located inside the control
panel.
The original switch was set at the factory to produce ice of recommended thickness. Look at the
“Certificate of Test” which was provided with the machine for a sample set of pressure readings with
corresponding time periods and water temperatures. Also see Tables 11-5 or 11-6, Operating Vitals
for typical settings. When making adjustments, allow two ice discharging cycles between
adjustments. Switch adjustment is as follows: See Figure 9-3.
1.
Turn the low signal adjustment nut CCW until low signal setting indicator is fully down. Turn
the high signal adjustment nut until high signal setting indicator is slightly beyond the actuation
setting of 55 psig.
2. Starting with the pressure above the actuation pressure, reduce the pressure to desired actuation
pressure of 55 psig, contact opens.
3. Advance the low signal adjusting nut until the switch actuates and contact closes.