laser dry electrical requirement

[cherokee235]

What is the electrical requirement for a Laser dryer? I have 240v 3 phase at my wash, so anyone have the specs at that voltage? Need the breaker required and FLA on the motors.

thanks,
David

 

[dreese]

LaserDri came in 2 models, each ran 2 motors. Circuits needed are:

30 hp - (1) @ 38 fla, (1) @ 41 fla @ 230VAC
40 hp - (1) @ 48.6 fla, (1) @ 53.2 fla @ 230VAC

Above ratings are load amps, does not include +25% service factor for breaker selection.

If you are looking at the MaxAir 2 circuits, each running (2) 7.5 HP motors, are used for the basic model (40 fla @ 230VAC each circuit). Add an additional circuit if side producers are used.

 

[cherokee235]

LaserDri came in 2 models, each ran 2 motors. Circuits needed are:

30 hp - (1) @ 38 fla, (1) @ 41 fla @ 230VAC
40 hp - (1) @ 48.6 fla, (1) @ 53.2 fla @ 230VAC

Above ratings are load amps, does not include +25% service factor for breaker selection.

If you are looking at the MaxAir 2 circuits, each running (2) 7.5 HP motors, are used for the basic model (40 fla @ 230VAC each circuit). Add an additional circuit if side producers are used.

So, at 30hp that would be 79 amps, right? A 100 amp breaker should get it.
I assume this is 240v 3 phase, correct?

David

 

[dreese]

So, at 30hp that would be 79 amps, right? A 100 amp breaker should get it.
I assume this is 240v 3 phase, correct?

David

Yes, this is 230 / 240 VAC 3 Ph.
No, you need to run 2 separate circuits. The LaserDri (no longer in production) ran 2 motors, 15 or 20 HP each - thus the 30 or 40 HP designation. Most commonly used breaker for each circuit on the 208 VAC 30 HP dryer was a 60 amp. At 230/240, a case could be made to use 50 amp breakers, but I would check with your electrician.
If you are talking about the current dryer - the MaxAir - you still use 2 separate circuits. It was designed to be a drop-in replacement for the LaserDri using the same circuits. If side producers are added, an additional circuit is required.