Wilkerson WRA-0010, Руководство владельца/оператора

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WILKERSON Page 5
Control Panel and Components Voltage Part #
1 ON/OFF Switch 115 V 87-379-000
230 V 87-379-001
2 High Temperature Light 115 V 87-382-000
230 V 87-382-001
3 Refrigerant Gauge — 49-082-000
RUNNING OPERATION
1. The non-cycling operation of the refrigerated dryer is
controlled by an automatic expansion valve (AXV). The
fan control is used in conjunction to maintain head
pressure during light or no load running condition.
2. The automatic expansion valve is preset at the factory.
The suction pressure gauge should indicate 65
PSIG
for
R-22. If adjustment is necessary refer to Figure 1.
AXV USED AS EITHER AN EXPANSION VALVE OR
AS A HOT GAS BY-PASS.
INCREASING THE
SUCTION PRESSURE WILL RAISE THE
EVAPORATOR TEMPERATURE.
DECREASING THE SUCTION PRESSURE WILL
LOWER THE EVAPORATOR TEMPERATURE.
Temperature-Pressure Chart (R-22)
TEMPERATURE PRESSURE
F PSIG
28 52.4
30 54.9
32 57.5
34 60.1
36 62.8
38 65.6
40 68.5
45 76.0
adjusting screw
Use a 3/8" wrench or socket to turn the adjusting screw.
Turn clockwise to increase the suction pressure. Turn
counterclockwise to decrease the suction pressure to the
normal range.
INCREASE
DECREASE
FIGURE 1