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The Antunes Controls 8021202056 (SMD Series) is a high-precision air differential pressure switch engineered for critical proving applications in HVAC and energy management systems
Is a separate vent limiter required
This bracket is specifically engineered for Reznor gas-fired unit heaters
this base provides the electrical interface necessary for sophisticated Gas/Smoke Detection and remote annunciator support without adding significant profile depth to the ceiling installation
Armstrong International 30A3 Trap 30067439-890 The Antunes Controls 8021202056 (SMDOptimizing your steam system requires a high performance Armstrong International 30A3 steam trap. This float and thermostatic steam trap is engineered specifically for applications with modulating pressures and varying loads, such as heat exchangers and unit heaters. Featuring a 3 4" NPT connection and a 30 PSI maximum operating pressure, the 30A3 utilizes a balanced pressure phosphor bronze bellows caged in durable stainless steel to quickly vent air
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