MP CONTROLLER The MP Controller is no longer offered by United CoolAir. The manual included here is for reference on those units that have included this controller in the past. Please contact a United CoolAir distributor for alternative controls that would be suitable for your specific application. UNITED COOLAIR CORPORATION 491 E. Princess Street York. PA 17403 (717) 843-4311 Fax (717) 854-4462 www.unitedcoolair.com Email: uca@unitedcoolair.
MP CONTROLLER INSTALLATION & OPERATING MANUAL UNITED COOLAIR CORPORATION 491 E. Princess Street York. PA 17403 (717) 843-4311 Fax (717) 854-4462 www.unitedcoolair.com Email: uca@unitedcoolair.
TABLE OF CONTENTS GENERAL INFORMATION 3 MP CONTROLLER COMPONENTS Main Board Temperature / Humidity Sensor Display Display Layout Normal Display Mode 3 3 3 4 4 5 INSTALLATION OF THE COMPONENTS Installation of the Display Location Installation Materials and Tools Installation Procedure Installation of the Temperature / Humidity Sensor Location Installation Materials and Tools Installation Procedure 6 6 6 7 7 7 7 7 7 OPERATION OF THE CONTROLLER General Notes Starting and Turning Off Unit Mode Setting Cur
GENERAL INFORMATION Read and save this installation and operating manual before proceeding with installing or operating the MP CONTROLLER. 1. The MP CONTROLLER has been carefully inspected and tested before leaving the factory. 2. Examine the controller components (SENSOR and DISPLAY units) for any damage that might have occurred during transit. Please notify the carrier if there is any damage. 3. Installation of the MP CONTROLLER should be performed by qualified personnel.
Display The display (Fig 3) provides information on the state of the controller. It also serves as the interface for controlling the operating parameters. Fig 3 Display Display Layout 11 2 12 3 1 10 13 7 4 8 5 9 6 Fig 4.
1. ON/OFF button: Press to turn the unit on. Press and hold for about 3 seconds to turn the unit off. 2. button: Press this button to increase the value of the control parameter when the cursor is in a parameter field. 3. button: Press this button to decrease the value of the control parameter when the cursor is in a parameter field. 4. PROG button: Press this button to go to the program mode of the controller (the LCD will flash). 5.
INSTALLATION OF THE COMPONENTS NOTE: The Main Board (Fig 1) is factory installed and is located inside the unit. The procedure for field installation of the display and sensor is as indicated below. Installation of Display The display has an electronic circuit board housed in a 2-piece plastic container. The top piece has the display LCD while the bottom piece has the circuit board and the 3 screw positions for attaching the display to the wall.
Installation materials and tools 4-conductor 18-guage shielded wire (field supplied) Small straight screwdriver. Power drill and drill bits. Set of three (3) screws suitable for the wall material (field supplied). Installation procedure Step 1. Open the display case. Step 2. Remove the top piece. (See Fig 5). The top piece LCD is connected to the board with a ribbon cable that can be separated by gently pulling on the plug at the board. Step 3.
Step 5. Attach the bottom piece to the wall using the two screws. CAUTION: Make sure sensor is positioned in the proper orientation per the label on the cover. The air path over the sensors is critical to proper functioning. Mounting the sensor in an incorrect orientation may result in erratic operation. Step 6. Run the shielded connection wire from the sensor to the controller. NOTE: Avoid high power lines as much as possible. Step 7.
COOL or HEAT Mode 1. In either mode, press the button to increase or button to decrease the temperature set point of the active mode. The display will change the set point of the active COOL or HEAT mode. 2. After setting the desired temperature, wait for 3 seconds for the controller to accept the new setting and return to the normal LCD display. COOL/HEAT Auto Change Over Mode 1. Press the mode. button to increase or button to decrease the temperature set point of the active 2.
6. Press Hum again and the display will show the “d” (differential) “d” means the differential: the setting starts from 2.0 to a maximum of 4 in increments of 0.5. It indicates the maximum upper and minimum lower value about the current set-point and dead band setting at which the controller will turn the Humidifier ON or OFF. 7. Press Hum again to return to the normal LCD display. Example: If the humidity set point is 55% and “db” is 3 and “d” is 2.0.
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.
B. Setting the time of program for weekdays schedule 1. Press the Prog button. Program 1 and the weekdays will appear on the display. Prog Clock Mode Hum Auto Reset Fan 2. Press the Prog button: The hour on LCD will flash. To change the hour, press the or to increase to decrease. Prog Clock Mode Hum Auto Reset Fan 3. Press the Prog button: The minutes on LCD will flash. To change the minutes, press the button to increase or button to decrease. Prog Clock Mode Hum Auto Reset Fan C.
NOTE: The controller keeps a differential of at least 1 degree between the HEAT set point and COOL set point (HEAT is always less than COOL). Prog Prog Clock Mode Hum Auto Reset Fan D. Setting the Humidity set point for weekdays schedule. 1. Complete the settings in B & C above. 2. Press Prog button: Humidifier and the humidity set point will flash. To change the humidity, press the button to increase or button to decrease. Prog Clock Mode Hum Auto Reset Fan I E.
Table 1a Weekly Schedule Program No. Temp Cool Humidity Table 1b Saturday Schedule Time Temp Hour Minutes Heat Cool Humidity Table 1c Sunday Schedule: Time Temp Hour Minutes Heat Cool Humidity Hour Time Minutes Heat 1 2 3 4 Program No. 1 2 3 4 Program No. 1 2 3 4 CARE AND MAINTENANCE General Care To keep the MP CONTROLLER working and looking good, follow these guidelines: Avoid any liquid spill on the display or the sensor.
f. Plug the cable back into the board and re-attach the DISPLAY with the bottom piece. g. The controller will have to be fully re-programmed. Battery compartment. Fig 6 DISPLAY showing battery compartment. SPECIFICATIONS Temperature Range Accuracy Differential System Fan Control Ambient Storage Temp.
UNITED COOLAIR CORPORATION 491 East Princess Street York, PA 17403 (717) 843-4311 (877) 905-1111 Fax (717) 854-4462 www.unitedcoolair.com Email: uca@unitedcoolair.com Subject to change without notice. Printed in the U.S.A. MPIM (0602) Copyright © by United CoolAir 2007. All rights reserved.
