2.7
Owner's of the ADC Clothes Dryer AD-200 gave it a score of 2.7 out of 5. Here's how the scores stacked up:
69
c) Lint drawer closed circuit branch...
The lint drawer closed switch is located in the front of the dryer. When the lint drawer is closed,
it closes the switch contacts, powering the lint drawer closed relay. Then, the dry enable relay
will close, supplying 24 VAC to the TSX 07 Programmable Logic Controller (PLC). When the
lint drawer is closed, the lint drawer light emitting diode (L.E.D.) is on.
b. Phase 7 Microprocessor Controller (Computer)
1) The temperature sensor probe is a bullet shaped device that is located above the lint basket. This
temperature probe is used to sense the temperature in the exhaust of the dryer. The temperature
sensor is a two (2) terminal monolithic integrated circuit temperature transducer that provides an
output current proportional to absolute temperature. The transducer acts as a high impedance
temperature dependent current source of 1µA/ºK. The typical accuracy of this probe is +/- 1.5º C
(+/- 2.7º F). In a case where the temperature reaches 220º F (104º C), the Phase 7 microprocessor
controller (computer) will shut down and the L.E.D. will display “Exhaust High Temp Fault.” To
restart a cycle the “CLEAR/STOP” button must first be pressed.
To check a temperature sensor you first need a Digital Multimeter (DMM) with a diode check
position. Put the meter on diode check, place the red lead of the meter on the black lead of the
temperature sensor and the black lead of the meter on the white temperature sensor wire. At this
point, you should get no response from meter (infinite). If you get a reading, the temperature sensor
is defective.
ºF =
9
(ºC + 32)
5
ºC =
5
(ºF - 32)
9
TEMPERATURE SENSOR CURRENT =
ºC + ºK (273.15)
= MICROAMPS (µA)
1,000,000
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