Jackson Systems Comfort System T-21-P User Manual
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Jackson Systems Comfort System T-21-P User Manual

Comfort system t-21-p touchscreen thermostat
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Comfort System™
T-21-P Touchscreen Thermostat

User Manual

Version 1.40

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Summary of Contents for Jackson Systems Comfort System T-21-P

  • Page 1: User Manual

    Comfort System™ T-21-P Touchscreen Thermostat User Manual Version 1.40...

  • Page 2: Basic Functions

    User Manual, you can take advantage of the many features offered in this premium product. Great care has been taken in the preparation of this manual. Jackson Systems takes no responsibility for errors or omissions contained in this document. It is the responsibility of the user to ensure that this thermostat, or equipment connected to it is operating to their respective specifications and in a safe manner.

  • Page 3: Residential 5-2 Day Programming Mode

    BASIC FUNCTIONS Some symbols and display functions are normally hidden from view until needed or may not appear based on the thermostat configuration. Make sure your contractor configures the T-21-P to suit your specific needs. Lock Heat Set Padlock symbol Flt (Filter) indicates that the selected Optional filter reminder...
  • Page 4 Mode selection The T-21-P can control both heating and cooling. Touch the Mode box to cycle through and select available modes. Based on equipment and thermostat configuration, mode selection can be as follows: - Thermostat will not call for heating or cooling.
  • Page 5 Programming 4 daily events (5-2 schedule) Touch and hold the Program box until the UP and DOWN arrows along with the flashing days of the week appear. The program format starts with Monday through Friday. You will now be able to program four schedules per day with individual heating and cooling setpoints for all five days of the week.
  • Page 6 Touch the Program box again and the Morning Heat Set temperature will appear and flash. Use the UP and DOWN arrows to change the heating setpoint. Mon Tue Wed Thu Fri Heat Set Morning Touch the Program box again and the Morning Cool Set temperature will appear and flash. Use the UP and DOWN arrows to change the cooling setpoint.

  • Page 7: Residential 7-Day Programming Mode

    After the Saturday and Sunday Night Cool Set temperature is confirmed or Programmable Fan (if used), the thermostat will resume normal operation in approximately 20 seconds. All scheduled events will be saved in non-volatile memory. Residential 5-2 Day FactoryDefault Schedule Start Time Set Temperature Schedule...
  • Page 8 Mode selection The T-21-P can control both heating and cooling. Touch the Mode box to cycle through and select available modes. Based on equipment and thermostat configuration, mode selection can be as follows: - Thermostat will not call for heating or cooling.
  • Page 9 Programming 4 daily events (7 individual days) Touch and hold the Program box until the UP and DOWN arrows along with the flashing days of the week appear. The program format starts with Monday. You will now be able to program four schedules per day with individual heating and cooling setpoints for each day of the week.
  • Page 10 Touch the Program box again and the Morning Heat Set temperature will appear and flash. Use the UP and DOWN arrows to change the heating setpoint. Heat Set Morning Touch the Program box again and the Morning Cool Set temperature will appear and flash. Use the UP and DOWN arrows to change the cooling setpoint.
  • Page 11 each additional day. For example, you might want to copy the Monday schedule to Tuesday and Wednesday. Once you have selected the days, touch the Program key and the copy symbol will flash confirming that the Monday schedule has been copied to the additional days selected. Touch the Program key again and programming will commence with the next non-scheduled day, which in the example would be Thursday.

  • Page 12: Commercial Programming Mode

    COMMERCIAL PROGRAMMING MODE Setting the clock Touch the clock on the display. The day of the week will flash. Use the UP and DOWN arrows to adjust the day. Touch the clock again. The hour will flash. Use the UP and DOWN arrows to adjust the hour.
  • Page 13 Fan selection Touch the Fan box to select Automatic Always On fan mode. In Automatic mode, the fan operates with a heating or cooling call. If set to Always On, the fan will run continuously. If the thermostat is turned Off while the fan is set to Always On, the fan will switch to Automatic mode but can be set back to Always On for constant ventilation when the thermostat is Off.

  • Page 14: Manual Mode

    Refer to the programming steps as outlined in the Residential 5-2 or 7-Day programming section. The only difference is that two schedules per day (Day and Night) will be programmed. Commercial Default Schedule Start Time Set Temperature Schedule 7 Days Per Week Heating Cooling 6:00 AM...

  • Page 15: Troubleshooting

    TROUBLESHOOTING Display is blank - Check HVAC circuit breaker and reset if necessary. - Make sure power switch at HVAC system is on. - If thermostat is battery powered only, replace batteries. Heating or cooling - Touch MODE to set system to Heat or Cool. Set the heating does not respond temperature a few degrees above the space temperature or the cooling temperature a few degrees below the space temperature.

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