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we recommend verifying if your specific furnace model requires a separate perimeter gasket or RTV sealant for a pressurized seal during installation
using the genuine 1177658 OEM part is required to ensure the precise temperature ratings and mounting configuration match the original manufacturer’s internal safety testing
Counterclockwise Rotation: Matches original equipment specifications for proper fan operation
Worn sheaves can cause premature belt failure
Siemens Building Technology 188-0030 Thermostat 321894-706 we recommend verifying if yourThe 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