Honeywell TP971A2011 Window inserts for use on Satin Chrome Cover fahrenheit scale - /U TP970-25

"PNEUM T-STAT

"PNEUM T-STAT is used on a fire sprinkler system to cut off the water supply and alarm if there is a drop in atmospheric temperature, which could be caused by a break in the pipe/tapping. The sensor is fitted inside a window frame or outside a window where it responds to cold air entering the room. The output will operate an alarm circuit and also cuts off the water supply by actuating a bypass valve that releases the treated water outside into a drain."

The PNEUM T-STAT is a temperature control for use with 10-inch wall thermostats. Converts any room into an energy-efficient setting and can be used to replace or renovate any outdated parts.

The Pneumatic Thermostat is a non-capillary temperature control device that controls the temperature of gases or liquids in heating and air conditioning systems. In heating systems, it senses atmospheric pressure and controls the heat delivered by the boiler to maintain constant temperature. When the thermostat is opened, less air pressure holds back water from the evaporator, and more water evaporates, yielding more heat energy in the building. This easy-to-install unit has leads for power into heating and cooling systems. It is designed to fit all airflow types (direct/forced) through most conventional return air ducts, including horizontal

INNOVATION IN HEATING & AIR CONDITIONING - THIS IS AN EMERSON 3450-0588 PNEUMATIC TEMPERATURE CONTROL FOR HONEYWELL/REVOLTEC HEAT PUMP SYSTEMS. IT WORKS WITH ANY 15-AMP SINGLE PHASE GAS OR ELECTRIC REFRIGERATION CYCLE.

Window insert for use on Satin Chrome cover temperature and humidity displays.

2-1/2" plastic frame (TP971 only)

The 7-day Programmable Thermostat is easy to install. It fits into a single- or multi-gang wall opening, and works with most single-stage and two-stage heating and cooling systems. The latest version has a larger screen for easier viewing through the wall opening. Digital controls are simple to use and allow you to see the current temperature from across the room.