HONEYWELL T6861 Horizontal Digital Thermostats

T6861 Horizontal Digital Thermostats

The T6861 series thermostats are designed for:

• 2-pipe fan coil systems: Cool only / Heat only / Manual changeover

• 4-pipe fan coil systems: Manual or automatic changeover

They provide manual or automatic 3-speed fan control and water valve control. With a sleek and modern appearance, they are suitable for offices, hotels, and residential buildings.

Energy Saving Mode:

• When activated by dry contact, all buttons are locked except the multi-key for ISU.

• For Automatic Change Over (ACO) thermostats, a fixed dead band is set in ISU between heating and cooling set points, determined by the heating and cooling settings.

• When activated by button press, any subsequent button press will exit energy saving mode.

• In heating mode, the set point changes to the remote setback heating set point (range: 10°C–21°C, default 18°C, adjustable in 0.5°C steps via ISU).

• In cooling mode, the set point changes to the remote setback cooling set point (range: 22°C–32°C, default 26°C, adjustable in 0.5°C steps via ISU).

Features & Benefits:

• Cycle per Hour (CPH) function

• Room temperature display adjustment

• Selectable temperature unit (°C / °F)

• User settings retained after power loss

• Freeze protection function

• Lock/unlock all or part of the keys in Installer Set-up

• Heat and cool set point limitation for energy saving

• Time on/off function

• Manual or automatic fan speed control

• Remote temperature sensor support