Resideo TD-165 Tridicator 326058-758 If the signal is stay

If the signal is stay above 1

this assembly will restore the vacuum needed to prove the pressure switch

The unit allows for a range of +/- 15 psi relative to the standard 8 psi crossover

Excessive heat can damage the internal needle

Resideo TD-165 Tridicator 326058-758 If the signal is stayThe Resideo TD 165 Tridicator is a professional grade instrument designed for simultaneous monitoring of pressure and temperature in hydronic heating systems. Specifically engineered for boilers and critical shut off valve locations, this gauge features a 3 1 8" high visibility dial with a dedicated relief set point indicator for precise system safety management. With a maximum safe operating pressure of 75 PSI and a temperature range spanning 60F to