RB Vent Flashcards
1
Q
Why must Exhaust Fans and Vent Fans be operated alternately during startup or shutdown of RB Vent?
A
To prevent excess building pressure.
Supply fans trip on high building pressure. Exhaust fans trip on low building pressure
2
Q
What must be performed to prevent low flow trip during RB Vent fan start?
A
Fan control switches must be held in CLOSE for a minimum of 20 seconds to allow air flow to develop.
