Using a thermocouple, Using a platinum resistance thermometer – AEC WD 350 through WD3000 Dehumidifying Dryers User Manual
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Determining Temperature Controller Errors or Sensor Errors
Using a Thermocouple
If the controller displays a temperature that is close to room temperature (70ºF/21ºC) when you
short-circuit controller input terminals, the controller is normal and the sensor is probably
broken, short-circuited, or incorrectly wired.
Using a Platinum Resistance Thermometer
If the controller displays a temperature of about 0.0°C (32ºF) when you insert a 100-ohm resistor
between terminals
A
and
–B
of the controller, and you short-circuit controller terminals
+B
and
–B
, the controller is normal and the sensor is probably broken, short-circuited, or incorrectly
wired.
Figure 21
Optional WD50MR/FR Aftercooler Spare Parts List
Part number
Quantity
Description
A0535499 1 Coil
assembly
A0533831
2
Seals, water line, ½”
A0532232
2
Pipe, nipple, brass, ½”
W00016797
2.5 ft.
Gasket, cover, channel
WDMR and WDFR Series Dehumidifying Dryers
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