Electronic Thermostat

Performex-1TMCONTROLLER : OPERATION & FUNCTIONS

The COOLINE Packaged units are provided with technologically advanced new PerformexTM Controller Microprocessor Based Electronic Control Board, incorporating the following benefits and features:

-COMPLETE UNIT CONTROL: Provides complete unit control for heating and cooling application whether single stage or two stage utilizing the input from sensor that measure temperatures during unit operation.

-COMPRESSOR LOCKOUT: If any of the unit’s safety controls trip due to abnormal conditions the Electronic Control locks out the compressor, preventing restart, unless attended by qualified service technicians. The unit can be re-started only by reset the thermostat after ensuring safe system conditions.

-LEAD LAG OPERATION: The unit electronic controls automatically alternate lead and lag the compressors for even operation. Compressor #1 can be set always lead as an option.

-ANTI-RECYCLE TIMER: For compressor safety in case of accidental manual reset or immediate recycling of thermostat due to load demand. This considerably improves compressor life.

-PUMP DOWN OPTION: In units equipped with pump down system the time delay creates the required time gap between the solenoid opening and compressor start to equalize the pressure in the system prior to compressor start up.

-AUTO/MANUAL RESET OF THE ALARM SIGNALS.

-FULL CONTROL OF THE INDOOR FAN: Fan operation can be selected either to run continuously or stage with the compressor/heaters.

-PROTECTION: The PerformexTM Controller will provide the following protection:

1.Compressor high pressure protection (option)

2.Compressor low pressure protection

LCD display: a) Room temperature display

b)Mode of operation (Cool/Heat/Auto/Fan system control)

c)Set temperature

d)Compressor Status - ON/OFF/FAULT

e)Error Codes

1.ON/OFF: Press the ON/OFF button & the unit shall be switched ON. A status Led adjacent to this button shall light up indicating the unit is switched ON. To shut off the unit, press this button again.

2.MODE: Press the mode button to select the desired mode. On selection the corresponding icon shall be displayed on the LCD display panel.

3.TEMPERATURE RANGE AND SETTING: The operating temperature range is 160C to 300C (610F to 860F), both inclusive. Press the UP or DN button to select the desired temperature. The temperature setting is effective only for the Cool, Heat and Auto modes.

4.INDOOR (EVAPORATOR) FAN: There is one indoor fan with single fan speed. When fan speed on LCD panel is HIGH, indoor fan will always turns on. Indoor fan can be set off, when the compressor is cut off by setting the fan speed to AUTO on the LCD panel by pressing Fan button. By pressing the Fan button again the fan speed can resume to HIGH.

5.COOL MODE: Whenever the unit is started in cool mode (without Pump Down Solenoid-PDS), the compressors will be turned on one by one depending on the load requirement of the unit.

6.HEAT MODE (HEATER MODEL): Whenever the unit is started in heat mode, the heaters shall be switched ON one by one to meet the load requirement.