Applications

Note:
1. FCU with a single speed fan, 3-speed fan, or variable speed fan, conventional or packaged units, and heat pumps support dehumidification when cooling is available.
2. You can configure unit heaters with FCU 2-pipe heat only settings with changeover set to heating mode.

The TEC4000S Series Thermostats control the following equipment types:

■ Pressure dependent VAV:
• Proportional valve or floating valve
• Optional single-staged reheat
■ Fan coil units (FCU) with a single speed fan, 3-speed fan, or variable speed fan:
a. 2-pipe FCU:
• On/Off valve, proportional valve, or floating valve
• Optional single-staged reheat
• Optional pipe sensor or switch input for automatic changeover
b. 4-pipe FCU:
Individual coil:
• Two On/Off valves, proportional valve, or floating valve
Single coil:
• Two On/Off valves, proportional valve, or floating valve without changeover output
• Single On/Off valve with changeover valve output
• Single 6-way proportional valve
■ Conventional or packaged units:
• Up to two stages of heating
• Up to two stages of cooling
• Single speed fan
■ Rooftop unit (RTU) heat pumps:
• Up to two stages of compressor heating or cooling
• Up to two stages of supplemental heating
• Reversing valve
• Single speed fan
■ Vertical stacked heat pump (VSHP) :
• Single-stage compressor heating or cooling
• Reversing valve
• 3-speed fan
■ Packaged terminal air conditioner (PTAC) with or without a heat pump:
a. Conventional setup without a heat pump:
• Single-stage On/Off of heating and compressor cooling
• Single speed fan or 2-speed fan
b. Setup with a heat pump:
• Single stage compressor heating or cooling
• Reversing valve
• Single speed fan or 2-speed fan
■ Heating only systems:
• On/Off type electric heat or gas heat
• On/Off type radiant heating or proportional radiant heating