The International Environmental 70011411 Aquastat is an essential OEM temperature sensitive switch designed for HVAC system regulation in residential and commercial fan coil units
the perpendicular port orientation and MPL Dual 9375 design allow for a straightforward drop-in installation in tight blower compartments
or physical signs of overheating/swelling of the epoxy housing
Universal Series Compatibility: Designed for direct installation into the terminal box of Marley 1800
It is factory-set to trigger at 75 degrees Fahrenheit and cannot be manually calibrated in the field
Maxitrol TS121 Sensor Els PW 17895 The International Environmental 70011411 AquastatFor veteran technicians servicing indirect fired make up air units, the Maxitrol TS121 discharge air temperature sensor is the critical component for maintaining a stable 55 90F terminal temperature range. Specifically engineered for integration with Selectra Series 20, 21, 30, and 31 modulation systems, this thermistor based sensor delivers a resistance of 4,500 ohms at 77F, providing the Maxitrol amplifier with the sub second response times required