| Author |
Message |
tony bare
Unregistered guest
Posted From: 72.29.32.235
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 06, 2006 - 1:11 pm: | |
I know that the ideal arangement is a roof raise and ducted air in the ceiling. To avoid the effort and cost and overall height of the coach,what are the pros and cons of putting ducts under the floor and cooling through regesters in the floor,or using the duct that is already down the center of the floor. I'm thinking about an MCI 12. |
George M. Todd (George_mc6)
Registered Member
Username: George_mc6
Post Number: 21
Registered: 8-2006
Posted From: 207.231.80.150
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 07, 2006 - 10:21 am: | |
Tony,
Nothing wrong with basement air. Basement unit(s) take up bay space which some nuts don't like. They are easily ducted through the floor, and the main center duct is ideal for the supply run. I would not use the factory sidewall diffusing system only beause of the small amount of insulation between the conditioned air and the outside. So, cut the branches off before they get to the wall, and install floor registers. The two keys to success in this venture are sufficient capacity, and proper circulation. A 40' bus is going to need 2 1/2-3 tons (12,000BTU/ton.) Don't build in a "mechanical short circuit," (return air intake too close to one of the supplies.) To be "textbook perfect," you could run the return air up through a cabinet, with the intake just below the ceiling, but it really isn't necessary. Textbook perfect heating has the return air on the floor, so. Basement air is quieter if the ducting and registers are large enough to keep the air velocity down, roof airs are less expensive to buy, easier to install, don't take up bay space, but. |
david anderson (Davidanderson)
Registered Member
Username: Davidanderson
Post Number: 188
Registered: 2-2004
Posted From: 66.90.201.61
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 07, 2006 - 9:28 pm: | |
Just an opinion, but earnestly try to get that cool air up as high as you can in the coach since it wants to sink and warm air rise. Since your head gives up more body heat than the rest of your body, if it feels cool the rest of you will feel cool, also.
If all the cool air is injected at floor level your feet will get cold and upper body feel warm.
Just my take on it.
David |
Debbie and Joe Cannarozzi (Joe_camper)
Registered Member
Username: Joe_camper
Post Number: 1
Registered: 10-2006
Posted From: 68.251.66.3
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 08, 2006 - 10:13 am: | |
The correct way to do basment air is with a split system similar to your home central A/C. The compressor the condencer and cooling fan are below and you run freon lines inside the bus to a seperate evaporator and blower that you put anywhere and duct anyway you desire. Cruise-Air does it this way, we have 3. |
Marc Bourget
Unregistered guest
Posted From: 64.142.42.176
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 07, 2006 - 11:06 am: | |
adding to George mc6's informative post would be (room available) bend the supply lines to help with noise control. This helps when other factors keep duct cross-section small, which raises air velocity and noise. |
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