Siemens Building Technology 188-0031 Stat 320788-703 Ammonia Compatible Construction: Built with

Ammonia Compatible Construction: Built with materials specifically rated for R-717 ammonia refrigeration

making it a reliable choice for load trending and fan or pump status verification

Its lugged body configuration allows for bidirectional dead-end service and simplifies downstream maintenance

The Carrier HH79NZ026 is a high-precision outside air temperature sensor engineered for commercial and residential HVAC applications

Siemens Building Technology 188-0031 Stat 320788-703 Ammonia Compatible Construction: Built withThe Siemens 188 0031 (Model TH 188D) is a professional grade unit mount pneumatic thermostat designed for precision control in fan coil units and unit ventilators. As a direct acting (DA) instrument, it employs a liquid filled sensing element and a remote bulb to provide gradual acting control of heating or cooling mediums. Operating on a force balance principle, this thermostat ensures high linearity and rapid response to temperature fluctuations