The Watts 0274836 (Model 174A-3/4-150) is a high-capacity boiler pressure relief valve engineered for critical overpressure protection in hot water heating systems and domestic supply boilers

and it is designed for vertical mounting to maintain calibrated set points

it provides reliable SPDT contact function and manual reset capability

The Danfoss 034G2202 is a professional-grade 4-wire cable designed for precise communication between electronic controllers and electric expansion valves (EEV)

technicians should tighten the four head bolts to approximately 14-20 ft-lbs using an alternating star pattern

MAMAC Systems TE-702-A-12-C Temperature Sensor 320735-701 The Watts 0274836 (Model 174A-3/4-150)The MAMAC Systems TE 702 A 12 C is a professional grade duct temperature sensor engineered for precise thermal monitoring in high demand HVAC building automation systems. This model features a high accuracy 10,000 Ohm NTC thermistor (Type II) sensor element, providing stable and repeatable resistance output tailored for air handlers, fan coil units, and supply or return air ducts. The 8 inch 304 stainless steel probe is crimp attached to the flange to