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Swapping out 10hp for 15hp blower motors

S

soonermajic

Well-known member
Do you guys know if I can just swap out my10hp motors, for 15hp motors (all 3 ph) on my blowdryers? 10hp doesn't blow a lick
 
You'd need bigger everything, impellers, housings, etc. otherwise like I.B. said you'll just add 5 HP that you won't be using. If motor horsepower was the issue, you'd be tripping breakers now.
 
Motors and blowers must be matched to the correct sized ducting or they will quickly tear themselves apart.
 
Manufactures make the impellers specific to the HP of the motors. They test several different types of impellers. Then they analyze the results (air flow, exit velocity, CFM, etc) to create the best combination. I would not mix and match.
 
The answer is that it is probably more involved. Did it once with an AVW Blower to save $ but had to change impeller, modify mounting, overloads and wires. At the end of the day, little to no savings. compared to replacing the whole unit.
 
Could you reposition them or change the angles of them to be more effective? Are you using a drying agent or something that has it on all wash packages?
 
I personally like 15hp for sides and 10 on top. Their for sure is more blow but that would be motor and impeller also. Not just swap out a motor. Also need to check your cables and breakers can take the extra loading.
 
30 HP now (10x3)... moving to 45 HP (15x3)... that's an amperage jump... make sure your main breaker box can handle the new Amp load and the startup surge...
 
I suggest you do not swap motors, but if you do take the electrical into consideration as a expense also. Heres a few things to consider:

1. Wire size
2. Breaker or fuse amperage
3. Contactor rating
4. Overload rating

You will most likely need new contactors and overloads unless the ones you have are capable of running a 15HP motor. Breakers/Fuses is a must and wire size depends on what they ran previously (most likely underrated for 15HP).

Also, if you do go through with this and see your electrician trying to put wire nuts on a high voltage motor. Fire him immediately.

Split bolts with friction and electrical tape must be used.
 
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