Micro-Air, Inc.
Page 12
EasyTouch 2.5 Operations Manual
Rev 1.0 8/27/14
the
Humidity Mode Minimum Temp
(50°F/10°C, by default), a cooling cycle is started and
runs as described above. However, if the temperature is below the Humidity Mode Minimum
Temp, a heating cycle will be started instead. The heating cycle will continue until the
temperature reaches the Humidity Mode Minimum Temp or until the heating cycle runs a
maximum of one hour. Four hours after the temperature is satisfied or the cooling/heating
cycle times out, the entire cycle repeats, each time determining whether cooling or heating is
required. See section 11.1.15 for more information on how to adjust the Humidity Mode
Minimum Temp parameter setting to a temperature that may better suit your particular
requirements.
IMPORTANT (for DX systems only):
If your air conditioning unit is Cool-Only (i.e. it does not have a reversing valve) and an
Electric Heater is not installed or enabled, then COOL Mode MUST be selected. DO NOT
use AUTO or HEAT modes for a Cool-Only unit. If either AUTO or HEAT modes are selected
with a Cool-only unit and the thermostat calls for heating, the compressor will run and still
provide cooling.
8.3 Fan Speed Modes
8.3.1
Automatic Fan Speed Mode
EasyTouch has three automatic fan speeds available: High, Medium and Low. While in the
On Mode, Automatic Fan Speed Mode allows the EasyTouch to determine the required fan
speed based upon the set point temperature differential. This permits a balance between the
most efficient temperature control and slower, quieter fan speeds. To select Automatic Fan
Speed Mode, on the Main Screen press and release the Fan Button as many times as
necessary until the word
“AUTO” is displayed above the fan speed bar graph.
8.3.2
Manual Fan Speed Mode
There are three manual fan speeds available: High, Medium and Low. While in the On Mode,
Manual Fan Speed Mode allows you to select and maintain a desired fan speed. To select
Manual Fan Speed Mode, on the Main Screen press and release the Fan Button until the
desired speed is indicated on the Fan Speed bar graph
and the word “MANUAL” is displayed
above the fan speed bar graph. The selected fan speed will increase and decrease as the
Fan Button is repeatedly pressed until the Fan Speed Mode is returned back to Automatic.
8.3.3
Fan-Only Mode
While in the Off Mode, use the Fan-Only Mode to operate the fan for air circulation when no
cooling or heating is desired. On the Main Screen, press and release the Fan Button to start
at low fan speed. Press and release again to select Medium fan speed. Press and release a
third time to select High fan speed. Press and release a fourth time to turn off the fan. Putting
the control into ON Mode will cancel the Fan-Only Mode and revert the fan speed back to the
Automatic Mode or whatever the last selected manual fan setting was.
NOTE: Please refer to section 11.1.20 for more information on the Fan Operational Modes,
Continuous or Cycled.
9. FAULTS
There are a total of six different faults that the EasyTouch can declare. Only one applies during CW
operation and all six apply during DX operation.
When a Fault is declared, it is displayed in the Status Area of the Main screens as described in section
8.1.2. Once the fault has cleared, the system will automatically delay 2 additional minutes (and display
“FLT DLY”) before restarting a cooling or heating cycle. At anytime during the fault condition or fault
recovery delay, pressing and releasing over the top of the fault status on the Main screen will display help
information for the particular fault. See section 15.2 for more information on Fault Help.
Certain faults indicate a serious problem for the air condition. These faults are the High Pressure, Low
Pressure, and Pump Sentry faults. Any four faults of these types during a single cooling or heating cycle
will result in a
LOCKOUT
condition. Once a lockout occurs, the system will not restart automatically.
Operator intervention is required. To clear a lockout condition, power must be cycled (turned off and back
