Packaged Terminal Air Conditioner Application

(Download PTAC PDF File)

The patented T9000 is the most flexible thermostat solution on the market today. A two-part system, it provides precision temperature control without the installation difficulties and expense of wiring. Battery powered, the T9000 uses unlicensed 900MHz RF to communicate with one or more control nodes which are installed at the HVAC equipment. The battery operated thermostat section is simply mounted on the wall with no need for wiring. This system is unique in that it is the only thermostat designed for simultaneous control of unrelated, multiple heating and cooling HVAC loads through a single thermostat, creating a virtual central heating and cooling control system.

Packaged Terminal Air Conditioner (PTAC) and Packaged Terminal Heat Pump (PTHP) equipment are common air conditioning solutions used in commercial and residential applications. A thru-wall installation,the equipment integrates heating and cooling capability with a built-in thermostat.

A thermostat that is integrated within heating or cooling appliances however, i.e., PTAC, exhibit inferior temperature control, often dramatically over and under shooting the desired room temperature setpoint. Setpoints are selected based on maintenance of a minimum acceptable temperature of an occupant. Greatly enhanced comfort and significant energy savings can result from precision temperature control afforded by a properly located wall-mounted thermostat. Studies have shown precision temperature control alone providing 12% energy savings a unique circumstance where both greater comfort and savings are expected.

The T9000 provides superior thermostat control in a wide variety of PTAC/PTHP and other challenging HVAC applications.


  • Simple to understand user interface controls.
  • Styling for home, office, or hotel applications.
  • Digital display of ambient temperature, and user setpoint temperature.
  • Easy pushbutton adjustment of functions.
  • Accommodates external energy management inputs such as occupancy sensors and switches.
  • Battery powered, no control wiring needed.
  • Adjustable maximum heating and minimum cooling setpoint limits.
  • Direct load control capable.
  • Multiple PTAC/PTHP unit control from a single thermostat.
  • Many other possible applications.

More Information…

Check this out...
Still turning knobs and fan speed switches hoping for a comfortable temperature?
It doesn't have to be that way anymore.
The patented T9000 wireless programmable thermostat design provides retrofit options never before possible. Powered with standard AA batteries, it can be placed anywhere without the disruption and expense of running wires. And, you get the temperature you want!
Optimum comfort and energy savings! Why settle for anything less!

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