Am looking at a job whereby I need to install a timed auto start facility for a fume extractor over a kiln.
The fan motor is single phase 0.75KW rated and is equipped with a D.O.L. starter.
The main thing I am concerned about is how to conduct the installation in full compliance with the requirements of things such as machinery directives etc.
At present, the set up for the old extractor unit is a FCU supplying an immersion heater timeclock which in turn supplies a single 13A socket outlet. Since the warranty on the new unit implies that I must use the D.O.L. starter with the motor on the new unit, I was thinking of just removing the retaining contact off the ‘start’ side of starter circuit and having the timeclock switch the contactor on and off as required.
Am also considering installing a lock-off isolator in the circuit after the time clock to isolate the motor for maintenance.
Any comments?
