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-   -   Spencer Vortex Blower (http://www.mechmate.com/forums/showthread.php?t=5526)

toad Wed 19 April 2017 11:37

Spencer Vortex Blower
 
I have acquired an Spencer Vortex Blower Model # VB- 22G-U. 220V
I need help with the wiring, I have 9 & 3 together, 8 & 2,together, 7 & 1 together, 5 & 6together P and P are loose. Can anyone assist with correct wiring?

MetalHead Sat 22 April 2017 04:32

What are you hooking it to? Single or 3 phase, 110 or 220?

toad Sat 22 April 2017 07:44

I was looking to use it for another vacuum system. I have single phase, so I would have to use a converter. It is already wired for 220 3 phase, but the two wires labeled "P" I don't understand.

timberlinemd Sat 22 April 2017 16:58

http://www.spencerturbine.com/wp-con..._OM_090915.pdf

Looks like it (P/P) energizes a pilot lamp.

pblackburn Sat 29 April 2017 11:55

if it is 3 phase motor and you have a single phase supply you will need an inverter that is capable of single phase input. Depending on the size of the motor will determine the price of the VFD.

toad Tue 02 May 2017 13:05

That is correct. I have an inverter, but the P/P was confusing me. may be a pilot lamp. thought it might be some kind of a fuse. wasn't sure.

bradm Thu 04 May 2017 11:44

Actually, according to the diagram on page 3 of that PDF, P/P is labelled "Thermal Protector" and appears to be a Normally Closed thermal protection device inside the motor, which presumably goes open if the motor overheats. It is shown wired into the contactor hold in loop along with the Stop switch. The pilot lamp is simply in parallel with the coil of the contactor.

So P/P should normally complete a circuit, and if it opens, you should have the motor stop.

timberlinemd Sat 06 May 2017 15:39

I think Brad has found the right solution.

toad Sat 20 May 2017 11:34

Thanks guys, that helps a lot.


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