Autopilot APCEM2 Troubleshooting Manual - Page 8

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

monitors. Humidity should be within +/- 7%RH.

4) Testing Relays:

Plug small devices (fan etc.) into each outlet.

While on Method 1, turn Temp knob and Humidity knob fully counterclockwise. The Cooling output

and Humidity output should turn on, confirm that these outlets have power.

Turn the Temp knob fully clockwise, the Cooling output should turn off, and the CO2 output should

turn on. Confirm CO2 outlet has power.

Cover up photocell for 30 sec, until DAYTIME MODE light turns OFF. The Night output should turn on.

Continue covering the photocell, and confirm the Night outlet has power.

5) Test button:

To make sure the "Select Method" button works, press it to cycle through Methods 1, 2, and 3.

Method explanations:

Method 1: Equivalent to "Split" mode on the APCETHD, Temp and Humidity outlets turn on

independently. This is the most common method used, for sealed rooms with AC and dehumidifier.

Method 2: Equivalent to "Connect" mode on the APCETHD, Temp and Humidity outlets turn on

dependently. This is used when an exhaust fan is functioning as the Cooling and Dehumidifying unit.

Method 3: Like "Split" mode, but for use with an AC unit and humidifier, for dry environments.