12
Your specific unit alarm functions can be determined by looking at the unit wiring diagram.
Alarms 1 and 2 are critical alarms. When activated they will shut down the system.
The Drain pan overflow alarm will shut down all components except the evaporator blower.
Alarms 3 thru 6 are indications only.
NOTE: It is possible that more than one alarm can occur.
Alarm Reset
In the event of an alarm:
1. The alarm (red) LED will start to blink and an audible beeping sound will be activated.
2. Press RESET button, the alarm will be displayed on the LCD by the number definition (1 thru 6).
3. Check the nature of alarm and take corrective action as needed.
4. Press RESET button again to clear the alarm.
5. Except for alarm 5, call a service company to rectify other alarms.
PROGRAMMING THE CONTROLLER
General Notes
1.
The MP CONTROLLER is a 5-1-1 programmable device. Monday to Friday have the same
program, while Saturday and Sunday can be programmed differently. There are 4 programs per day.
2. The MP Controller is programmed when leaving the factory. The MP Controller has been factory
preset for 74F, 68F and 55% for cool, heat and humidity respectively for all programs. The set
points for time, temperature and humidity can be modified using the procedures below.
NOTE: If the factory settings of the controller are altered, it is advisable to record the new set
points in Table 1.
3. To program the controller start by setting the current day and time using procedure “A” below and
follow other procedures in sequence.
A. Setting the time of the day / day of the week.
1.
Press
Clock
button, the hour LCD will flash. Press the
or
button to adjust the hours.
2.
Press
Clock
again to set the minutes. Press the
or
button to adjust the minutes
3.
Press
Clock
again to set the current day of the week. Press the
or
button to adjust the
day.
4.
Press
Clock
again to leave this setting mode.
