Micro-Air, Inc. Page 7 EasyTouch 2.5 Operations Manual
Rev 1.0 8/27/14
Figure 6 – EasyTouch Display Mounting Dimensions
3. Plug one end of the display cable (8-pin connector) into the display jack on the circuit board in the
electric box and the other end into the back of the display panel.
4. Secure the display panel to the bulkhead using the four screws provided.
Do not use a screw gun and do not over tighten screws when mounting, because either method
may damage the display.
5. When the display is securely mounted, mount the bezel over the display frame until it snaps into
place.
6. INSTALLING THE OPTIONAL SENSORS
6.1 Remote (Alternate) Air Temperature Sensor
Install the optional remote air sensor if the display cannot be mounted in a proper location for
accurately sensing room temperature. Installing the remote air sensor overrides the display’s built-in
sensor. The standard cable length for the remote air sensor is 7 feet (2.1m).
1. Mount the remote air sensor in a reliable return-air stream, preferably just behind the opening of
the return-air grille. DO NOT attach the sensor to the edge of the unit’s drain pan since the
condensate water and cold air spilling off of the heat exchanger coil will cause an inaccurate
temperature reading.
2. Plug its cable (6-pin connector) into the “ALT. AIR” jack on the circuit board.
6.2 Outside Air Temperature Sensor
Install the optional outside air temperature sensor to monitor the temperature outside the cabin.
Outside air sensor cables are available in various lengths.
1. Mount the sensor outside but not in direct sunlight.
2. Plug its cable into the “OAT” jack on the circuit board.
6.3 Service Sensor (For DX systems only)
Install the optional condenser coil temperature sensor into the “OAT/H20” jack on the FX1 circuit
board or into the “SERVICE” header on the FX2 circuit board.
1. Mount the sensor in the middle of the condenser coil, strapping it securely to the piping.
2. Enabled the use of this sensor by going to DX Operational Settings, and then the Pump Sentry
feature as explained in section 11.2.5.
6.4 Water Inlet Temperature Sensor (For CW systems only)
When using the EasyTouch with a chilled-water air handler, plug the water-inlet sensor cable into the
“OAT/H2O” jack on FX1 or into the “OUTSIDE” jack on FX2. Attach the sensor securely to the
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