Vogt P-24AL, Руководство по обслуживанию

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P24AL & P34AL Service Manual
SERVICING OPERATIONS
12/2016
9-2
Figure 9-1
P24AL and P34AL Float Height
Hand Expansion Valve. The hand expansion valve is located directly after the “A1” solenoid
valve. This valve should be set at a point where the float switch is open for a length of time
approximately equal to the time that it is closed.
Freeze Timer.
The freezing time period for producing ice of a desired thickness is controlled by the
freeze timer (1TR), Figure 9-2, located inside the control panel. This timer is a microprocessor
based timer housed in a standard 15 terminal CYCL-FLEX

plug-in case. Time set points are
entered into the unit using a sealed membrane keypad on the front of the unit. Each digit in the
setpoint is individually increased or decreased by pressing the appropriate keypad switch. There is a
mode annunciator in the display area on the front of the unit. The mode annunciator will flash when
the unit is timing. Table 9-2 shows the miniature rocker switch settings for the unit. This enables the
unit to pulse output, reverse start, minute/second display and battery back-up set points and timing.