Siemens DDC 540-104-R Control 320788-703 and strainer

and strainer

Measure the resistance across the sensor leads and compare the reading to a 10K Ohm NTC chart based on the current outdoor temperature

and PAI-2GT combustion air fans

OEM Precision: Guaranteed compatibility as a direct Carrier HC45AE460A replacement

This component is manufactured to original factory specifications to handle the specific pressure and temperature gradients found in commercial oil pump lubrication circuits

Siemens DDC 540-104-R Control 320788-703 and strainerThe Siemens DDC 540 104 R Control is a ruggedized Terminal Equipment Controller (TEC) designed specifically for constant volume (CV) ventilation systems in demanding commercial and industrial environments. This refurbished constant volume controller arrives pre loaded with application specific algorithms to handle cooling only, hot water reheat, or multi stage electric reheat sequences. Engineered for Direct Digital Control (DDC), the 540 104 R