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Each TT2-001 canister contains 5 individual glass test tubes
it provides a reliable normally open circuit that closes upon reaching the specified set point to prove draft and authorize the ignition sequence
It features manual or auto changeover between heating and cooling modes
as well as temperature offset and setback controls for precision calibration and energy-efficient nocturnal operation
Armstrong International C5490 Air Vent Freon Each TT2-001 canister contains 5The Armstrong International C5490 (functionally identical to the TAVB 2) is a high performance stainless steel thermostatic air vent and vacuum breaker designed to optimize steam system efficiency. Engineered for pressures up to 150 PSI, this dual function HVACR component features a 1 2" NPT air vent connection and a 3 8" NPT vacuum breaker inlet. By automatically discharging air and non condensable gases during start up and operation, it prevents
