The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:

2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Safety at heights?
by HotLine1
Yesterday at 08:51 PM
International Wire Colour Codes
by Texas_Ranger
Yesterday at 03:29 PM
Looking for older post
by Texas_Ranger
Yesterday at 03:22 PM
Last time to chat here
by Trumpy
01/20/17 11:41 PM
Unsafe Situations
by Trumpy
01/20/17 09:46 PM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
Admin 35
HotLine1 21
Ruben Rocha 17
gfretwell 16
Trumpy 15
Who's Online
0 registered (), 66 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#55257 - 08/23/05 01:02 PM TEAO or OAO
jkochan Offline
Member

Registered: 01/19/05
Posts: 61
Loc: Phoenix, AZ USA
Can anyone give me a reason why an Open Air-Over couldn't me used in place of a TEAO in the following application? This is a CanCoil condensing unit for an AirFlow AFX2000 series computer room type ac unit. The condensing unit is roof mounted, non-explosive environment in Phoenix AZ. It's a three Phase 460/380 1/2 hp, 1140 rpm, 56 frame, non-inverter duty. I can find all kinds of OAO's but have to order a TEAO from either GE or CANCOIL at considerable expense. It seems to me that the OAO would have better cooling in our environment. I prefer OEM where possible but these motors are not stocked locally and everyone who lists it must order it in. Shipping costs on a motor almost pays for a second OAO available locally

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#55258 - 08/23/05 02:36 PM Re: TEAO or OAO
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Rain?
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

Top
#55259 - 08/24/05 08:31 AM Re: TEAO or OAO
jkochan Offline
Member

Registered: 01/19/05
Posts: 61
Loc: Phoenix, AZ USA
Over 1/2 the motors I see on AC out here are open types, ususally with rain shields if mounted shaft up. These are also usually 1 phase motors. Any reason a 3 Phase should be any different? Higher voltage maybe?

Top
#55260 - 08/24/05 12:09 PM Re: TEAO or OAO
rad74ss Offline
Member

Registered: 04/19/04
Posts: 154
Loc: Pryor, OK USA
TEAO's keep out rain dust and droppings and the majority of condenser fans are mounted shaft up with wire grills over them.

Have you looked into Baldor motors? They may have a motor that can replace yours if the mount and blade will work with it.

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals