You can verify this by checking the resistance across the terminals with a multimeter

This genuine OEM replacement features a -

000 BTU nominal cooling capacity

With a 24-inch lead length and a standard 11/32-32 male connector nut

including eight bolts and nuts

Lochinvar & A.O. Smith 100208475 Connector 318172-701 You can verify this byWhen you're dealing with a communication fault or a total system lockout on a high efficiency unit, the Lochinvar & A. O. Smith 100208475 Board Connector is a critical point of failure to inspect. This genuine OEM connection board, which replaces legacy part numbers RLY20066, RLY20066K, and 100167582, serves as the primary interface between the main control module and peripheral system sensors. Engineered for the Lochinvar Crest (models CHN and CHL)