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Bill Holstein (Billmoocow)
Registered Member Username: Billmoocow
Post Number: 36 Registered: 5-2009 Posted From: 98.232.207.25
Rating: N/A Votes: 0 (Vote!) | Posted on Monday, November 09, 2009 - 11:58 pm: | |
Does anyone know of anywhere someone can get a descent schematic of a mc8 duct system? I want to see if i can modify air, heat introduction besides original equipment. Is it possible to put a heat pump or air to original duct system? |
John MC9 (John_mc9)
Registered Member Username: John_mc9
Post Number: 1014 Registered: 7-2006 Posted From: 74.162.83.126
Rating: N/A Votes: 0 (Vote!) | Posted on Tuesday, November 10, 2009 - 8:24 am: | |
If you saw what's inside those ducts, you wouldn't want to ride in it. That aside, the ducts aren't insulated, since the OE system had enough power to cool the bus with the door and windows open. Without insulation, your puny little AC unit would be working it's evaporator off, just trying to cool the ductwork. I suppose you could route insulated duct through the existing ducts if you tried hard enough, but it'd be easier to go overhead with it. I had planned on routing the Welch Auxiliary air system into overhead ducts along the edge of the ceiling. Since cold air drops and hot air rises, circulation would be easier on the unit and more effective overall. You might want to consider that? Good luck! |
Bill Holstein (Billmoocow)
Registered Member Username: Billmoocow
Post Number: 37 Registered: 5-2009 Posted From: 98.232.207.25
Rating: N/A Votes: 0 (Vote!) | Posted on Tuesday, November 10, 2009 - 10:35 pm: | |
That makes a lot of sense about the oem. It was just an idea but i thought i would throw out there for sugestions anyway. |
John MC9 (John_mc9)
Registered Member Username: John_mc9
Post Number: 1015 Registered: 7-2006 Posted From: 74.235.211.18
Rating: N/A Votes: 0 (Vote!) | Posted on Wednesday, November 11, 2009 - 8:30 am: | |
I don't know why no-one else answered, we used to have tons of input regarding this stuff. Maybe they're all on "buttbook" now instead of here? |
marvin pack (Gomer)
Registered Member Username: Gomer
Post Number: 660 Registered: 3-2007 Posted From: 71.53.155.14
Rating: N/A Votes: 0 (Vote!) | Posted on Wednesday, November 11, 2009 - 9:17 am: | |
If I am not mistaken,which I usually am, I believe the oem 's are rated at about 15 tons of ac. So It won't work to just hook in the existing ducting and there is about zero insulation in the floor ducting. I have 2 18,000 Cruise-air in an 4104 and it does a pretty good job,except the drivers area which is remedied with a couple of 12 v fans pointed right at ME. Gomer |
Bill Holstein (Billmoocow)
Registered Member Username: Billmoocow
Post Number: 38 Registered: 5-2009 Posted From: 98.232.207.25
Rating: N/A Votes: 0 (Vote!) | Posted on Wednesday, November 11, 2009 - 10:40 pm: | |
That was a good one John! Kinda crossed my mind as well.LOL. But back to the subject of the ducts, what a waste of ducting. One would think a person would be able to put a heavy duty air/heat system in bay that woud keep up with the downsides of the ductwork. Maybe a house system of some sorts? |
John MC9 (John_mc9)
Registered Member Username: John_mc9
Post Number: 1016 Registered: 7-2006 Posted From: 74.235.211.18
Rating: N/A Votes: 0 (Vote!) | Posted on Thursday, November 12, 2009 - 12:06 am: | |
My bus is gone now, and I never had the chance to finish it, but as far as the AC unit.... I decided that roof airs were the least expensive to buy, easiest to install, and would put the air into the bus where I wanted it. I ran one while working on the bus down here in Florida during the summer, and it was fine for me. With both going, it was more than cool enough. But I had three windows on each side sealed and insulated with 2" foam, and a reflective shield in the windshield area. Driving down the road, even with the OE unit in use, with a fully loaded passenger bus, fans were needed when the sun was beating down into the windshield. Like Gomer said, you'd need fans up front..... You could make some modification to the driver's air that exists, and there's a few guys here that can tell you how they did it. I think it was Niles, that had a refrigerator compressor running the driver's air... It sounded like the way to go. That Welch aux system I gave you a link to, can also be used to supply the driver's air assy with refrigerant. Guys ran tubing inside the existing piping from the old OE unit in the rear, to the driver's AC stuff in the front. The Welch system seemed to do well running both rear and front. The engineer at Welch had some names of those that did it. There's a lot of ways to spend the cash..... Like Fred says: Do it your way! |
R.C.Bishop (Chuckllb)
Registered Member Username: Chuckllb
Post Number: 966 Registered: 7-2006 Posted From: 75.210.7.85
Rating: N/A Votes: 0 (Vote!) | Posted on Thursday, November 12, 2009 - 10:50 pm: | |
JTNG....contact me via private email...I want to check on U! Regards.. RCB |