Thermostat Set Point and Room Temperature
I have two rooms, each less than 300 square feet with a 15K Fujitsu unit connected to a single outside unit. I know that a single unit with a short duct could have handled both rooms but we wanted separate thermostats for each even if it means that the units will cycle more than they should. Anyway, both rooms are usually 4 to 6 degrees cooler than the setting on their thermostats regardless of the outside temperature.
The outside temperature is only in the 30’s and obviously they have plenty of capacity to heat. If it gets colder outside they will produce more heat but still not enough to get up to the thermostat setting. They are not in “economy” mode. I have used an infrared thermometer and determined that the temperature above the unit is much below the thermostat setting. Somehow the units seem to decide that the room is warm enough and they don’t need to put out enough heat to warm the room.
Any ideas about why this might be happening?
Thanks for any suggestions,
Mount Holly, VT
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