Can I use this tubing for air sensing applications

How do I test if the pressure switch is actually bad

Directly compatible with Lochinvar part number 100166325 to ensure electrical and hydraulic synchronization

facilitating easy retrofits and new installations

and SDH series unit heaters

Daikin-McQuay 000423400 Belt 324846-701 Can I use this tubingThe Daikin McQuay 000423400 Belt is a critical power transmission component designed specifically for industrial HVAC air handling units and rooftop systems. Engineered to withstand the constant cycling and high torque demands of large scale blowers, this v belt ensures optimal efficiency and minimal slippage. Unlike generic aftermarket replacements, this OEM drive belt is manufactured to precise tolerances, maintaining proper tension and alignment to