Browning AK25X1/2 Sheave THPU32HP7Y How do I verify communication

How do I verify communication between the indoor and outdoor boards

Standardized Threading: Features a 1/2 inch gas valve connection for compatibility with common residential gas manifolds

a right-angle mounting bracket

leak-proof brazing

and is rated for 120Vac pilot duty

Browning AK25X1/2 Sheave THPU32HP7Y How do I verify communicationThe Browning AK25X1 2 Sheave is a precision engineered fixed bore v belt pulley designed for light industrial and HVACR drive systems requiring dependable power transmission. Manufactured from high grade cast iron, this single groove component is statically balanced to ensure vibration free performance, extending the service life of your blower motors and bearings. The AK25X1 2 features an outside diameter of 2. 50 inches and a 1 2 inch finished bore,