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Old 05-01-2019, 04:59 PM   #1
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Second AC Question

My Puma XLE 2019 31BHSC has 50 amp service, is prewired for a second AC, but only comes with one 13.5k BTU unit.

I was thinking of adding the second unit right off the bat. The dealer told me it would go where the skylight in the master bedroom is now.

How does a second unit work with the first unit? Do they both push air into the same ducts so they complement each other? Is it very noisy in the enclosed space of a master bedroom?

The price for the second unit plus installation is $1,800 and change even though it is prewired and braced. Would I be better off upgrading the main unit to 15k BTU and waiting on the second unit? I'm just sticking to New England this summer, but last summer there was a heat wave every week long trip we took. We were in a 22' Bullet with two kids and a dog. I guess that explains the new TT!
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Old 05-01-2019, 05:35 PM   #2
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Should of ordered the unit with two units. prob would of been a minimum charge new. now that you own the unit either way will be pricey. Yes the share the same duct work and yes its noisy in the bedroom. I run both during the heat of the day when needed and only run the living room one after dark once cooled off. Will need to shop for 50 amp camp sites if wanting to run both units. Most campgrounds I stay at only have 30 amp service.
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Old 05-01-2019, 06:21 PM   #3
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Your dealer did you a disservice selling you a 35í trailer with 50% of recommended air conditioning. Generally a second unit is less then a grand. $1800 to install one now sounds about right.

A 15,000 unit is only about 10% more ac. A second unit will improve your situation. If you are careful you can run two on 30 amp service.

Cooling a trailer in Kansas on a 105 degree day takes two 15,000 units working hard. Our two units worked hard from 5pm to 10:00 pm to cool our fiver down. We went out to dinner.

Noise in the bedroom is an issue. Depending on weather you might be able to turn one off. Maybe not. We were fortunate to be able to get the whisper quiet units. I doubt you have that option.

Earplugs? You do get used to it eventually.
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Old 05-01-2019, 07:44 PM   #4
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Lol. These guys are right if it gets above 85 or so. My first unit had one 15k unit and on a 100 degree Texas summer it was a challenge. I swore the next would have two....and it does.

Couple things I have figured out. Most of the places we stay are 30 amps(COE and state parks and such) some do, but not many. I was told you can use a cheater adapter to tie in the 30 and 15 amp plugs...only 2 times I have tried it the GFCIs didnít play nice in the sandbox.

The next thing is rolling thunder on the BR unducted unit. Cool? Yes... DW and me snore so I am used to noise.

I pretty sure you can buy a unit for $7-800 with the adapter stuff. What I have read the getting the unit to the roof is the hard part.

I will try and post a link.
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Old 05-01-2019, 07:46 PM   #5
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One

Puma 2nd A/C Addition
Puma 2nd A/C Addition
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Old 05-01-2019, 07:49 PM   #6
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Two


Adding 2nd 15,000 BTU AC????
Adding 2nd 15,000 BTU AC????
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Old 05-02-2019, 04:22 AM   #7
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Great links. Thanks!
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Old 05-02-2019, 10:43 AM   #8
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Quote:
Originally Posted by Iwannacamp View Post
One

Puma 2nd A/C Addition
Puma 2nd A/C Addition


This was my post. I purchased from Dyers Online for a great deal. For everything it was around $600 shipped to my house. I chose the non-ducted because I didnít want to deal with the ducts. Overall it was an easy experience. The main unit is 15k and this one is 13,5k.
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Old 07-15-2019, 09:35 AM   #9
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Originally Posted by Iwannacamp View Post
Lol. These guys are right if it gets above 85 or so. My first unit had one 15k unit and on a 100 degree Texas summer it was a challenge. I swore the next would have two....and it does.

Couple things I have figured out. Most of the places we stay are 30 amps(COE and state parks and such) some do, but not many. I was told you can use a cheater adapter to tie in the 30 and 15 amp plugs...only 2 times I have tried it the GFCIs didnít play nice in the sandbox.

The next thing is rolling thunder on the BR unducted unit. Cool? Yes... DW and me snore so I am used to noise.

I pretty sure you can buy a unit for $7-800 with the adapter stuff. What I have read the getting the unit to the roof is the hard part.

I will try and post a link.
Good info in your reply. My question is since I have the 50A down to a three prong 120v 15-20A plug, will that work with the 30A services usually available at RV parks? Thanks.
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Old 07-15-2019, 09:43 AM   #10
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Good info in your reply. My question is since I have the 50A down to a three prong 120v 15-20A plug, will that work with the 30A services usually available at RV parks? Thanks.
If you mean can you use both A/Cs?
Sorry to say most likely not. Some say you can if you install a couple of helpers to the units. If you use LP for the reefer and the WH you can MAYBE get by with it. Leave the micro off and no hair dryers when both A/Cs are on.
Just remember... under full load my converter will pull 10 amps.
Do you have an EMS? You can monitor the amperage if you do.

Short story? Prolly not a good idea.
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