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In voltage mode
This specific model features a 1-inch diameter bore
the 100112336 generates its own operating voltage via the thermopile once the pilot light is established
Most failures stem from welded contacts due to excessive arcing or a weakened internal spring
Siemens Building Technology 192-850 Stat 320788-704 In voltage modeThe Siemens Building Technology 192 850 is a high performance pneumatic thermostat designed for precision temperature control in commercial HVAC systems. This direct acting (DA) unit is part of the Powerstar Retroline series, specifically engineered to replace aging pneumatic controls from major manufacturers including Johnson Controls, Honeywell, and Barber Colman. Featuring a Celsius scale setpoint, the 192 850 utilizes a highly sensitive bimetal
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