I have come across delay on timers been used in series with low pressure switches. I have read somewhere that delay on timers are used to prevent chattering of contactors should the Lp go faulty or if a power failure occurs and instaneously returns creating an unwanted short cycling of the equipment/compressor.
The point that comes to mind is: If a delay timer is used this way, what should the duration of the delay time be set to in order to prevent floodback or any other potential problems?
What are your thoughts on this guys?