probablyobvious
479
6
2
Having to rewire a fan and the manufacturer doesn't make the motor anymore with no aftermarket options.
110v AC system. With a 24v AC control system.
The push buttons indicate the controller (it only sends one signal at a time) and it controls a 3 speed motor (replacing a VFD)
Q1 - this is how I am going to wire it, does it look good?
Q2- is there a single relay that I could use? Or do I need to buy 3 different relays to control the motor?
RainierCamino
Why ditch the VFD?
probablyobvious
Because they don't make it anymore, and there are no aftermarkets.
RainierCamino
I'd look at upgrading to a more modern VFD then. More expensive up front but waaaay easier on motors long term.
probablyobvious
That would require a new motor module. And in turn have to rewire the entire thing anyways. Between equipment costs and equal labour, fixed speeds are going to be much more economical.
WickedSludge
I'm just an amature handy man myself, but that looks like it'll work to me. I don't know of any 3-in-1 relays that could take place of 3 individual relays, although this could be rewired to only use 2...
peveay
As an electrician I wouldn't use 3 in 1 relay . If your relay die you will loose all use immediatly. Never pick your eggs in one basket .
probablyobvious
That is what I was wondering if they made it. Frankly I would prefer 1 relay block because at some point it will break and someone other than me will have to fix it. It's easier to say (change the full relay)
peveay
If you label the relays no problems . And in long therm probably cheaper for maintenance.
probablyobvious
The OEM motor was 900+ with the 3 speed coming in at a cool 130