To Next PageTo Next PageWhy is my Honeywell Thermostat's heating equipment running in cool mode?
If your Honeywell Thermostat's heating equipment is running in cool mode, it's possible that the heating equipment is not a heat pump, but the System Type (ISU 0170) is set to Heat Pump. Set the System Type (ISU 0170) to match the installed heating and/or cooling equipment.
Why are heating and cooling running at the same time on my Honeywell TB7220 Thermostat?
If both heating and cooling equipment are running simultaneously with your Honeywell Thermostat, it could be because the heating equipment is not a heat pump, but the System Type (ISU 0170) is set to Heat Pump. Set the System Type (ISU 0170) to match the installed heating and/or cooling equipment. Also, heating and cooling wires might be shorted together. Separate the shorted heating and cooling wires.
Why won't my Honeywell TB7220 Thermostat's heating equipment turn off?
If your Honeywell Thermostat's heating equipment does not turn off, and the heat temperature setting is below room temperature (Heat On is not in the display), it's possible that the heating equipment is not a heat pump, but the System Type (ISU 0170) is set to Heat Pump. Set the System Type (ISU 0170) to match the installed heating and/or cooling equipment.
Why can't I set my Honeywell Thermostat to heat?
If you cannot set the Honeywell Thermostat system setting to Heat, the System Type (ISU 0170) might be set to Cool Only. Set the System Type (ISU 0170) to match the installed heating and/or cooling equipment.
General| Brand | Honeywell |
|---|---|
| Model | TB7220 |
| Category | Thermostat |
| Language | English |
Highlights key capabilities and user benefits of the thermostat.
Instructions on connecting wires to the thermostat terminals.
Explains the function of each terminal on the thermostat wallplate.
Diagrams for heat pumps with auxiliary heating stages.
Explains power connection methods: 24 Vac common and battery backup.
Covers advanced configurations to match specific HVAC system needs.
Lists installer setup numbers, names, default settings, and notes.
Lists further installer setup parameters, default values, and system configuration options.
Lists test items for installer system verification.
Details default energy-saving settings and schedule editing procedures.
Explains the automatic temperature recovery feature for efficient comfort.
Explains the minimum-off timer and heat pump lockout features.
Details lockout temperatures for heat pump operation based on outdoor conditions.
