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Programmable Dual Fuel Model
The TSTATBBPDF01-B Thermostat provides single-stage or multiple-stage dual fuel operation, 7-day programmable heat/cool tem-
perature control for 24-vac systems with auto changeover. Temperature display can be selected to read °F or °C. The Dual Fuel
Thermostat is designed with separate lockout temperatures for the furnace and the heat pump. The furnace is prevented from oper-
ating above its lockout temperature and the heat pump is prevented from operating below its lockout temperature. Thermostat comes
factory set to operate single-speed equipment, but is easily configured to match multiple stage equipment combinations. This model
requires use of the Outdoor Air Temperature Sensor accessory, which is included with the Dual Fuel Thermostat. Using the dual fuel
thermostat eliminates the need for an interface control.
THERMIDISTAT CONTROL USAGE
* The Thermidistat Control may be used in all applications but must be field configured for specific application.
Thermidistat Control
The TSTATBBPRH01-B Thermidistat Control provides single-stage or multiple-stage equipment operation, 7-day programmable
heat/cool temperature control for 24-vac systems with auto changeover. It controls both humidification and dehumidification and can
be used to control heat pumps, air conditioners, or dual fuel applications. Temperature display can be selected to read °F or °C. The
Thermidistat Control is designed primarily as an extension of the programmable thermostat line to provide humidify and dehumidify
outputs in controlling humidity. It can also be field configured to be non-programmable. Humidify outputs connect directly to 24-v
humidifiers. Dehumidify outputs connect directly to variable-speed furnaces or fan coils that have dehumidification capabilities. To
achieve full benefits, this model requires use of the Outdoor Air Temperature Sensor accessory, which is included with the Thermidis-
tat Control. The Thermidistat Control will deliver Perfect Heat Plus mode when matched with variable-speed equipment.
INDOOR UNIT
OUTDOOR UNIT
Air Conditioner
Heat Pump
1 Speed
2 Speed
1 Speed
2 Speed
1-Stage Furnace
Model RH*
2-Stage Furnace
Typical Fan Coil
FK, FV Series Fan Coil