cancel
Showing results forย 
Search instead forย 
Did you mean:ย 

A '101' A/C question

retiredtravele1
Explorer
Explorer
I'm looking to get a popup with A/C. Never had that in the past. Will I be able to run that on 30-amp, or must it be 50? Any rule-of-thumb to determine this?
Specifically, I'm looking at a Coachman Clipper with a 13.5m a/c option.

Thanks.
No longer RV'ing
8 REPLIES 8

JLTN_James
Explorer
Explorer
Although I don't have AC on my PUP, it is "prewired" from the factory for it. What this means is that there is a dedicated 20A receptacle for the AC (i.e. it's the only device on that circuit). Mine is located low on the wall below the dining table; yours may be different. The AC cord would route across the ceiling, down a wall and plug into that receptacle. The cord would need to be about 10' long to reach.

FYI - You can tell a 20A receptacle because one of the slots is a "T" whereas the 15A receptacles have only straight slots.
2004 Toyota Tundra SR5 (V8, 4WD, TP, TRD)
2005 Fleetwod Allegance with axle flip
Honeywell 2000i Generator

Me, DW, DS, DD, & Chicken-Dog

bondebond
Explorer
Explorer
Let me put it this way, I have yet to see a PUP with a 13.5K or 15K air conditioner that isn't using a 20 amp receptacle inside the PUP. The PUP will have a 30 amp connection to shore power. That is sufficient to run everything simultaneously inside my PUP that draws electrical. The only exception to that is the furnace - I didn't turn it on when the A/C was on, even just for grins as there's no situation I can foresee where I would do that.

I had the A/C on, the 1,500 watt microwave, water pump, lights, refrigerator and all of the other parasitic draw devices running at the same time through my PDU/converter without problem.

In the winter, I run two electric heaters when on shore power to save on propane. I added another 120v circuit from the PDU just for the second heater as running both on the same circuit inside the PUP would indeed trip a 15 amp breaker.
This space left intentionally.

2006 Fleetwood Sequoia and mods...one of the tallest highwall pop-ups on the planet after flipping the axle.

jmcgsd
Explorer
Explorer
50 amp is only installed on larger MHs and perhaps 5'ers. 30 amp is plenty for an A/C even when using a microwave at the same time. If you had 2 A/Cs, a wager/dryer yada, yada then that would be different.
'09 Pacific Coachworks Tango 276RBS
95 Lance 880 Truck Camper

'91 F350 Dually 2WD CC 7.5L (76K Original miles!)
AirLift Bags, Reese Titan hitch, Rancho 9000X

RavenNS
Explorer
Explorer
Went down south in a pup without AC and brought one of those portable ( not really portable because they're big, but has wheels on the bottom) AC units. Stored it on its back during travel, then put it up on a counter by the door and vented it out the window. Just zipped up all the windows and zipped around the hose. Worked great! No problems with electrical, but we did only book 30 amp sites. This was the only trip that we needed AC for, as just unzipping all your windows usually works pretty well if you are under 90* degrees.
Our new htt has AC included on roof mount, and I do like that. Given the choice between buying a unit with AC versus not having it I do recommend it. Lugging around a portable AC unit eats up a lot of space.

Bumpyroad
Explorer
Explorer
my chieftain would run two ACs on 30 amp hookups with a decent EMS.
bumpy

Hiker_01
Explorer
Explorer
Our PUP is 30 amp and has AC. We can easily run AC and microwave at same time without popping circuit breaker. One AC is normally plenty, unless you are down south camping without shade. We use popup gizmos (reflective shields over bunkends - can find them online) to help with the heat and generally don't have problems.

WyoTraveler
Explorer
Explorer
Lots of RVs in the 80, 90s & even after 2000 had only 30 amps and 1 A/C. Running 2 A/Cs with 30 amps is a problem.

donn0128
Explorer II
Explorer II
30 amp. Never seen a tent trailer with 50A.