Tony Hwang wrote the following:


MarkK wrote:
I have a 25 year old York A/C heat pump and the outdoor unit has a
slight
vibration. I see that one of the fan blades is cracked. I tried to
remove the fan blade from the motor but of course it is rusted on
tight. So
I will replace both the motor and the fan.

(Please no lectures about how I should replace the entire unit to save
money)

The motor is 208/230 Volt 0.5 HP 1075 RPM standard frame 48 motor.

The blade is a 22" diameter 4 square blades. I don't know the pitch.

I see Grainger has the stuff I need, their fans are REVCOR which
is even
the same brand as the original. They have a 22" diameter REVCOR blade
rated for 0.5 HP so that is probably what I need. Grainger has what
looks
like the blade I need in both CW and CCW style. The original fan I
have
turns CW when viewed from the top which is also the motor side and
also the
discharge side.

http://www.grainger.com/Grainger/con...es-and-propell

ers/hvacr/ecatalog/N-d1dZ1z0m9wtZ1z0qiod


How is the CW. vs CCW specified for fans. Is it viewed from the intake
side or the discharge side, or from the hub or not hub side or?

If I get a universal reversible motor, then does it really matter which
blade I use, can I simply connect the motor so the blade turns the right
way?

thanks

Mark


Hi,
The air flow sgould be upward. I think if you really want to remove
the blade just soak the seized part on the shaft with generous WD40 ,
let it work it's way a few hours, repeat in needed then bearing puller....

Better than WD-40 is Liquid Wrench. Probably sold at the same place as
WD-40, or an auto parts store.
Let it sit for a while and try to remove it. If it still won't come off,
tap the end of the shaft with a hammer a few times.
If that fails, apply heat from a propane torch.


--

Bill
In Hamptonburgh, NY
In the original Orange County. Est. 1683
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