Autopilot APCEM2 Manuel de dépannage - Page 7

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Troubleshooting Analog Temp/RH Controller APCETHA

1) Test photocell by covering up the photocell on the sensor with your hand or thumb (make sure to fully

cover it). After 30 seconds or so, the small LED next to "DAYTIME MODE" should turn OFF, and NIGHT

OUTPUT should come on.

If DAYTIME MODE doesn't come on 30 seconds after startup, make sure it is getting plenty of light on

it.

2) Testing Temperature sensor:

Turn on the unit and allow the sensors to stabilize for five minutes.

While on Method 1, slowly turn the knob clockwise until the Cooling output light turns off (Fig. 1).

Then, turn it slowly counterclockwise until Cooling output light turns on again (Fig. 2). This

temperature is the current room temperature.

Make sure the Temp reading is correct by comparing it with at least two separate, calibrated monitors.

Temp should be within +/- 5F.

3) Testing Humidity Sensor:

Turn on the unit and allow the sensors to stabilize for five minutes.

This test is the same as the Temp test above, but with the Humidity knob.

While on Method 1, slowly turn the knob clockwise until the Humidity output light turns off. Then, turn

it slowly counterclockwise until Humidity output light turns on again. This reading is the current

Relative Humidity in the room.

Daytime mode indicator light