Need a replacement for this fan.
- Thread starter Rand
- Start date
Rand, my crystal ball is in the shop. What does the fan go to......possibly attic ventilator?
Cement mixer?
Industrial equipment at another location. I dont have measurements yet.
Grainger has several options depending on size.
https://www.grainger.com/search/hva...ted+cooling+fan&tv_optin=true&categoryIndex=5
I dont see 100v AC fans?
I was hoping someone had a cross reference site I cant find anything about 7109X
I think I would fan slap with a 120v model and see how long she lasts.
How is this equipment getting 100V AC to the fan? That's a common supply voltage---in Japan.
It has 3 phase 440v and a giant transformer.
how it gets from that to 100v ac... well electrical engineer I am not.
It is off of either...
a mid 90's Mitsubishi dwc-110HA(iirc)
or late 80's dwc-90c
Have you measured the voltage going to the fan? A 120V fan can operate anywhere from 105V to 130V perfectly fine.
Hmm... Japanese electrical grid spec. First I would check the voltage at the fan's power source. If you don't know the history this could be someone else's replacement fan that was "close enough". Judging from the crud it probably had a short life.
The fan is available from mitsubishi for 400$ + shipping so I'd assume it is the correct fan.
also all the other fans are 100v ac.
It still functions after a cleaning but its making some noise.
I was trying to find a cross referenced fan that wasnt $400.
Peel up the sticker over the hub.
Press impeller towards C clip.
Remove C clip.
Remove impeller.
Note position of spring.
Remove impacted dust from inside.
Bearings likely have part number printed on them.
Ive regreased them before.
Polishing, then waxing the impeller blades and interior fan body, makes future fan cleanings much simpler, with old toothbrush.
Press impeller towards C clip.
Remove C clip.
Remove impeller.
Note position of spring.
Remove impacted dust from inside.
Bearings likely have part number printed on them.
Ive regreased them before.
Polishing, then waxing the impeller blades and interior fan body, makes future fan cleanings much simpler, with old toothbrush.
Is it broke or just dirty?
Okay, with the spec verified, and if cleaning, greasing, or replacing the bearings isn't an option, I would recommend biting the bullet and getting an exact replacement from a trusted supplier. Especially if this results in any type of downtime. If you kluge something in and it works well enough, you harm the next tech who tries to replace it in the correct way. If the kluge fails, you either get to warrantee it out of your own pocket or explain why the cost is so much higher this time and why there was no warranty on the new parts you're already replacing.
There are a few surplus outlets that sell similar units. MPJA.com comes to mind.
If you want to gamble with Chinesium: https://www.ebay.com/itm/1333607784...KnKtPV5QFS&var=&widget_ver=artemis&media=COPY
Else, Digi-Key has similar, at 120V which should work:
https://www.digikey.com/en/products/detail/comair-rotron/19031842A/256079
https://www.digikey.com/en/products/detail/omron-electronics-inc-emc-div/R87TA3A07H/4947189
Else, Digi-Key has similar, at 120V which should work:
https://www.digikey.com/en/products/detail/comair-rotron/19031842A/256079
https://www.digikey.com/en/products/detail/omron-electronics-inc-emc-div/R87TA3A07H/4947189
what's the Mitsubishi part number?
Glad you called it out as it's definitely a fake label. I see it being sold for $15.26USD on the domestic Chinese online marketplace
Unless I'm wrong, it seems like it's the correct fit though
Specs from Japan:
https://www.ikurafan.com/product/product_i36.html
China copy:
