| Author | Message | ||
| Dallas Farnworth (Dallas)
Registered Member Username: Dallas Post Number: 64 Registered: 7-2004 Posted From: 75.91.198.181 Rating: |
Last year, one of our long term campers removed his roof air and replaced it with a new one because it kept blowing the breaker, (ummm... 15amp). I asked if I could have the old one, and he helped me load it on my yard cart. A couple months later, I finally got it into the #1 hole on my bus and there it sat all winter. Early this spring, another camper gave me another roof air so I stuck the shroud onto the one on my bus. A few weeks ago, a bus nut came in with no AC and I gave him a small window unit I had been using, so I needed to get my roof air wired up and running, (hopefully). Where I was parked was a long way from the power so I had to use almost 150' of extension cord to keep the batteries charged and the fridge running. Obviously you can't run a 13.5 Roof wart with that voltage drop, but I tried it and sure enough, the compressor quit and LRA popped the breaker. Today, I moved to a regular camping spot, hooked up and turned on the AC... it ran for an hour and the the breaker popped again. This was a 20A dedicated circuit. I replaced the breaker, tried again, and same result. Hmmmm. I checked the wiring, and found that the line going to the unit at some point changed from 12g to 14g. Well, that ain't good. I got out an old 10g extension cord and wired it directly to the breaker and the wart. Turned on the power and while the temperature outside is 104°, after about 2 hours, the bus is now 78° inside, even with the curtains open and the windshields exposed. I just checked the voltage and am holding steady at 119.7V.... Woo-Hoo! Cool is good! | ||
| John & Barb Tesser (Bigrigger)
Registered Member Username: Bigrigger Post Number: 440 Registered: 9-2007 Posted From: 96.42.5.35  Rating: N/A |
WOW, I am glad you got such good results Dallas. Our 4107 only has one roof unit (Emerson Quiet Cool I think)from the PO. It does not even come close to cooling the bus even with the drivers compartment curtained off and fans moving air to the back. If its hot outside its barely liveable inside. I have two new 13,500 units to put on, but its going to require changing my generator from the old 4KW to a 6.5 I have so a lot sweat before I can cool off! John | ||
| Dallas Farnworth (Dallas)
Registered Member Username: Dallas Post Number: 65 Registered: 7-2004 Posted From: 75.91.198.181 Rating: N/A |
Thanks J&B! I spent about 2 years piecing blue and pink foam into every available spot and adding Reflectix over that. However, I'm not certain this is actually a 13.5 BTu unit.... Considering it was on a Cedarcreek 5th wheel with two zoned units on top and a 50a service. The unit is only about 3 years old, but when they lost the shroud, the weather wiped out the tags and stickers on it so I have no idea what it actually is. | ||
| Jim Wallin (Powderseeker01)
Registered Member Username: Powderseeker01 Post Number: 85 Registered: 10-2008 Posted From: 72.37.244.90  Rating: N/A |
Our 4107 stays bearable up to 100 with only one roof air running as long as we're parked. I think it's the spray foam we put in that makes it possible | ||
| Teresa (Happycamperbrat)
Registered Member Username: Happycamperbrat Post Number: 14 Registered: 5-2009 Posted From: 71.105.184.70 Rating: N/A |
Dallas, what kind of insulation do you have? What kind of AC is it too? Is your bus 40' long? Are you in a humid area or dry hot? That is dang good cooling!!! | ||
| Teresa (Happycamperbrat)
Registered Member Username: Happycamperbrat Post Number: 15 Registered: 5-2009 Posted From: 71.105.184.70 Rating: N/A |
Never mind my last post, drrr! It would soooo help if I could read | ||
| Dallas Farnworth (Dallas)
Registered Member Username: Dallas Post Number: 66 Registered: 7-2004 Posted From: 98.20.53.31 Rating: N/A |
Hi Teresa! The brand of the A/C is Coleman RVP, I just don't know how to tell whether it is a 13.5 or a 15 KBTu model. We live in East Central Texas at the moment where we've had about 3 weeks over 100° with humidity up around 90%. It's miserable right now 'cause the owner and I are putting all new power pedestals at the campsites, and we can only work until noon or so before the heat gets to us. | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 546 Registered: 2-2001 Posted From: 71.80.55.228  Rating: N/A |
Dallas, I would think the larger unit would draw more electric. If so, you can read the running amps with an amp clamp and tell. |
