How do I read the diagnostics on this Carrier control board

Where should the external equalizer line be connected

000 cycles in demanding environments

keeping the system within its engineered performance window

significantly improving total HVAC system efficiency

Lochinvar & A.O. Smith 100208109 Gasket 319847-401 How do I read theThe Lochinvar & A. O. Smith 100208109 Gasket is a critical OEM replacement component designed for high efficiency commercial boilers and water heaters. As a heat exch divider gasket (also known as a hex gasket for the divider panel), this 1 2 inch seal is specifically engineered for the Power Fin Model PB 502 thru 1302 heating boilers and PF 502 thru 1302 hot water supply boilers. This part provides a high temperature seal between heat exchanger