JOHNSON CONTROLS MS4DR24T-11C Electronic Temperature Control, 20 to 30VAC Voltage

Johnson Controls MS4DR24T-11C electronic temperature control is a microprocessor-based unit used to control a heater or other equipment by comparing a sensor signal with a set point and performing calculations according to the deviation between those values. It can autonomously adapt the setpoint for energy conservation, utilising input from the auxiliary temperature sensor and the predefined function settings.

Working Mechanism:

• Users can set the desired temperature via the control interface, representing the target environmental temperature.
• The control system consistently compares the real temperature to the designated setpoint, examining the difference (error) between the two measurements.
• Utilising algorithms, the control unit decides the most suitable action based on the error. If the actual temperature strays from the setpoint, the control unit computes the necessary adjustment.
• Based on the calculations, the control unit produces an output signal that is dispatched to connected equipment like heating or cooling systems.
• The produced output signal triggers heating or cooling systems in line with the calculated adjustment. For instance, if the actual temperature dips below the setpoint, the control system might activate the heating mechanism.
• During equipment operation, the control system keeps on monitoring the temperature. It adapts the output signal as required to sustain the desired temperature within a specific range around the setpoint.

Frequently Asked Questions:

Q. What is the operating temperature range of this Johnson Controls digital temperature controller?

A. It has an operating temperature range of 14 to 140 degrees F.

Q. How do you adjust the temperature on this temperature control unit?

A.

• Select the temperature icon to access the temperature display screen.
• Tap the oval setpoint icon to open the setpoint adjustment settings screen.
• Utilise the 'Up' or 'Down' arrow to raise or lower the temperature setpoint by increments of 0.5 degrees F or 0.5 degrees C.
• Tap the green checkmark icon to validate the alteration or press the red cancel icon to revert and return to the previous screen.
• Optionally, press and hold the 'Up' or 'Down' arrow for continuous incremental adjustments to the temperature setpoint.

Q. What can cause hindrance in the temperature control unit?

A. Ensuring your air filters, vents and ducts are free from debris is essential. A congested air filter can hinder the thermostat's ability to reach the desired temperature, as the accumulation of dirt and particles obstructs proper airflow through the vents. With reduced airflow, the comfort levels in your living spaces can also decrease.