Marvair 70281 Control Board 320788-704 Integrated Fan Selection: Built-in three-position
Baker’s notes & crumb story
Description
Marvair 70281 Control Board 320788 704 Integrated Fan Selection: Built in three position Integrated Fan Selection: Built in three position selector switch (Auto Off Fan) eliminates the need for external subbases or additional wiring during HVAC installation the NBR seals are rated for air and water