2 combustion air terminal, 3 o2 sensor terminals, 4 spark signal terminals – AERCO BMK 1000 User Manual

2 combustion air terminal, 3 o2 sensor terminals, 4 spark signal terminals | 5 analog in terminals, 6 b.m.s. (pwm) in terminals, 7 shield terminals, Sensor terminals | AERCO BMK 1000 User Manual | Page 29 / 192