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and SNA400 series units
this motor grounding ring creates a path of least resistance
protecting it from sediment and corrosion common in hydronic loops
and AS-59066-10
and safety protocols to maintain peak thermal efficiency
Siemens Building Technology 188-0030 Thermostat 319852-301 and SNA400 series unitsThe Siemens 188 0030 is a heavy duty unit mounted pneumatic thermostat designed specifically for high low temperature control in HVAC terminal units like fan coils and induction units. This TH 188 HC model features a direct acting (DA) heating and reverse acting (RA) cooling sequence, making it a critical component for two pipe changeover systems. Engineered with a bimaterial sensing element, it provides reliable proportional control and pneumatic
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