Redi Controls Redi-Purge PRG-113-C3, Инструкция по установке, эксплуатации и обслуживанию, Страница: 56 / 68

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Compressor Suction Temperature (Superheat) being displayed will begin to indicate a
lowering of temperature as sensed by Temperature Sensor TS1.
NOTE: The temperature meter and Temperature Sensor TS1 will not respond to changing
temperature at the same rate. Temperature Sensor TS1 will probably lag somewhat
behind the meter. However, once the temperature has stabilized, the two readings
should equalize within about a minute.
As the temperature approaches 18°F, the pumpout compressor should energize. Should the
pumpout fail to start and the temperature at point 5 remains below 10°F, there is a problem. If
the display and meter readings are within ± 2° F of each other, the problem is elsewhere in the
pumpout system. If the readings do not correspond, the problem may be with the
Temperature Sensor TS1 (see Table 2 on page 57).
Temperature Sensor TS2
Sensor TS2 can be checked for proper calibration by me asuring the surface temperature at
point 4 in Figure 6 on page 19. Operate the purge, place the display in the "“SENSORS”"
sequence by pressing the “SENSORS” keypad switch (see Figure 7 on page 30), and monitor
"Purge Tank Evaporating Temperature". After approximately 5 minutes of operation, the
temperature at point 4 should settle out to approximately 5° F. Both the meter and the display
should indicate the same temperature. If they do not correspond within ± 2° F the
Temperature Sensor TS2 may be defective (see Table 2 on page 57).
Optional Temperature Sensor TS3
NOTE: This test is applicable only when Optional TS3 temperature sensor has been field
installed (see Optional Temperature Sensor on page 21 for more information)
While the purge condensing unit running, detach the temperature sensor TS3 from the chiller.
Place TS3 sensor into s small container of water completely submersing the sensor element.
Enter the SENSORS mode and scroll to the Cond. Temp. display. By slowing adding ice,
gradually lower the water temperature until displayed temperature drops to one (1) degree
below the temperature cut out point set in the SETTINGS mode (see Setting Operational
Parameters beginning on page 26 for more information). A this point the purge unit should
cycle off.
Remove the TS3 sensor from the ice water. When the displayed temperature rises above the
parameter setting the purge will go into a 15 minute delay, after the 15 minute delay the purge
will return to it’s previously set operating mode.
NOTE: If sensor TS3 is installed, the chiller condensing saturation temperature will be
displayed in the sensors mode as Evap. Temp.__
°
F.