Hydrotherm 02-2406 Aquastat 321894-709 Technicians should first verify the

Technicians should first verify the 24VAC power supply at the board and check for a consistent flame rectification signal

Rugged Construction: Built with a NEMA 1 steel enclosure and a 6-foot copper capillary for longevity in mechanical rooms

Common Questions What causes a

ensuring the diaphragm responds correctly to varying electrical signals and gas supply fluctuations

reducing pumping costs and improving thermal efficiency

Hydrotherm 02-2406 Aquastat 321894-709 Technicians should first verify theThe Hydrotherm 02 2406 Aquastat is a mission critical immersion type temperature controller engineered for high performance hydronic systems. Featuring a Single Pole Single Throw (SPST) switching configuration, this rugged aquastat relay provides precise thermal regulation across a broad 40F to 240F operating range. Designed for direct insertion into the medium, the Hydrotherm 02 2406 functions as a reliable high limit or low limit control, ensuring