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[GMCnet] WE ALL NEED MORE AIR [message #320582]

Mon, 17 July 2017 09:55

Thomas Pryor

Messages: 143
Registered: January 2011

Karma:

Senior Member

Hi Folks. I just completed a modification to my HVAC box that can easily
copied by any and all.

It is generally known that the air flow in our OEM HVAC boxes are anemic at
best. The "why" in my opinion is the side mounted squirrel cage fan expels
air that must change directions twice before getting to cooling or heating
fins. It is generally agreed that the capacity of our A/C compressor and
system is sufficient. After reviewing the efforts of Ken Henderson and
others I wondered if there might be a way to modify the system without
removing the whole HVAC box to improve air flow and efficiency.

This modification is JWID:

1. It requires cutting an access hole in the floor of the coach to get
access to the Lower portion of the HVAC box, then cutting two square
holes in the box.

http://www.gmcmhphotos.com/
photos/i-need-more-air/p63444-thumb-img-0955-1024.html

2. I then Fashioned a Plenum to connect the floor to box.
http://www.gmcmhphotos.com/
photos/i-need-more-air/p63448-plenum-sketch.html
http://www.gmcmhphotos.com/
photos/i-need-more-air/p63449-thumb-img-0957-10241.html

3. A new floor insert was made and installed to accommodate a MCC
fan blower, PN 515 (
http://www.mcc-hvac.com/wp-content/uploads/2014/03/Blowers.pdf)

http://www.gmcmhphotos.com/photos/i-need-more-air/p63445-img-0967.html

http://www.gmcmhphotos.com/photos/i-need-more-air/p63447-img-0969.html

The OEM fan and fan and fan duct will be removed and filled with aluminum
plate. The Hi, Med, and Lo wiring will be transferred to the new Blower
fan. BTW this fan already has Hi, Med and Lo hook ups with appropriate
resistance devices built in. In addition, all the dash controls are not
molested and will function as original. I plan to have a nice teak
enclosure with filters to cover the ugliness of the fan.

Any and all comments are required!

--
Regards,

Tom Pryor
4188 Limerick Dr
Lake Wales, Fl 33859
Cell 248 470 9186

Living on a waterfront is not a matter of life or death. Its more
important than that.
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[Message index]

		[GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Mon, 17 July 2017 09:55
		Re: [GMCnet] WE ALL NEED MORE AIR By: Emery Stora on Mon, 17 July 2017 10:17
		Re: [GMCnet] WE ALL NEED MORE AIR By: RF_Burns on Mon, 17 July 2017 10:43
		Re: [GMCnet] WE ALL NEED MORE AIR By: jhbridges on Mon, 17 July 2017 12:40
		Re: [GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Mon, 17 July 2017 13:10
		Re: [GMCnet] WE ALL NEED MORE AIR By: Guy Lopes on Mon, 17 July 2017 14:20
		Re: [GMCnet] WE ALL NEED MORE AIR By: Emery Stora on Mon, 17 July 2017 14:45
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Wed, 02 August 2017 15:38
		Re: [GMCnet] WE ALL NEED MORE AIR By: lqqkatjon on Wed, 02 August 2017 16:21
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Wed, 02 August 2017 19:05
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Wed, 02 August 2017 19:09
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Wed, 02 August 2017 21:00
		Re: [GMCnet] WE ALL NEED MORE AIR By: jimk on Wed, 02 August 2017 21:42
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Wed, 02 August 2017 22:15
		Re: [GMCnet] WE ALL NEED MORE AIR By: jimk on Wed, 02 August 2017 22:26
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Wed, 02 August 2017 22:58
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Wed, 02 August 2017 23:11
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Wed, 02 August 2017 23:27
		Re: [GMCnet] WE ALL NEED MORE AIR By: Keith V on Thu, 03 August 2017 08:54
		Re: [GMCnet] WE ALL NEED MORE AIR By: jimk on Thu, 03 August 2017 09:33
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Wed, 02 August 2017 22:25
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Thu, 03 August 2017 11:47
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Thu, 03 August 2017 12:11
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Thu, 03 August 2017 13:19
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Thu, 03 August 2017 13:47
		Re: [GMCnet] WE ALL NEED MORE AIR By: jimk on Thu, 03 August 2017 14:47
		Re: [GMCnet] WE ALL NEED MORE AIR By: jricke on Thu, 03 August 2017 16:45
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Thu, 03 August 2017 16:55
		Re: [GMCnet] WE ALL NEED MORE AIR By: bhayes on Mon, 17 July 2017 14:45
		Re: [GMCnet] WE ALL NEED MORE AIR By: Sammy Williams on Mon, 17 July 2017 15:29
		Re: [GMCnet] WE ALL NEED MORE AIR By: powerjon on Mon, 17 July 2017 16:35
		Re: [GMCnet] WE ALL NEED MORE AIR By: powerjon on Mon, 17 July 2017 16:39
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Mon, 17 July 2017 18:53
		Re: [GMCnet] WE ALL NEED MORE AIR By: jimk on Mon, 17 July 2017 20:53
		Re: [GMCnet] WE ALL NEED MORE AIR By: Bill Van Vlack on Tue, 18 July 2017 20:09
		Re: [GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Wed, 19 July 2017 20:55
		Re: [GMCnet] WE ALL NEED MORE AIR By: Emery Stora on Wed, 19 July 2017 21:04
		Re: [GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Thu, 20 July 2017 10:52
		Re: [GMCnet] WE ALL NEED MORE AIR By: Rob on Thu, 03 August 2017 13:36
		Re: [GMCnet] WE ALL NEED MORE AIR By: James Hupy on Thu, 03 August 2017 13:29
		Re: [GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Thu, 03 August 2017 16:48
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Thu, 03 August 2017 17:35
		Re: [GMCnet] WE ALL NEED MORE AIR By: Ken Henderson on Thu, 03 August 2017 18:23
		Re: [GMCnet] WE ALL NEED MORE AIR By: SpookyEng on Thu, 03 August 2017 18:54
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Thu, 03 August 2017 23:08
		Re: [GMCnet] WE ALL NEED MORE AIR By: tphipps on Fri, 04 August 2017 06:55
		Re: [GMCnet] WE ALL NEED MORE AIR By: Matt Colie on Fri, 04 August 2017 07:32
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Fri, 04 August 2017 16:53
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Sat, 05 August 2017 21:36
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Wed, 09 August 2017 21:25
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Mon, 14 August 2017 21:33
		Re: [GMCnet] WE ALL NEED MORE AIR By: lqqkatjon on Tue, 15 August 2017 09:06
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Tue, 15 August 2017 16:28
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Thu, 03 August 2017 19:21
		Re: [GMCnet] WE ALL NEED MORE AIR By: Ken Henderson on Thu, 03 August 2017 20:02
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Thu, 03 August 2017 20:12
		Re: [GMCnet] WE ALL NEED MORE AIR By: Ken Henderson on Thu, 03 August 2017 20:58
		Re: [GMCnet] WE ALL NEED MORE AIR By: johnd01 on Thu, 03 August 2017 20:29
		Re: [GMCnet] WE ALL NEED MORE AIR By: USAussie on Thu, 03 August 2017 20:41
		Re: [GMCnet] WE ALL NEED MORE AIR By: Thomas Pryor on Thu, 03 August 2017 20:51
		Re: [GMCnet] WE ALL NEED MORE AIR By: KB on Thu, 03 August 2017 23:05
		Re: [GMCnet] WE ALL NEED MORE AIR By: jhbridges on Tue, 15 August 2017 08:58

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