Noisy ac/heat pump

[galoot]

Hi all, galoot here and brand new to this forum and A Frame camping. I recently purchased a T19SCHW and tried it out on a 10 day camping trip to southern Mississippi from Iowa. Some of the nights were cool and I used the noisy heat pump and not the noisy furnace. Today I made the ac/heat pump much quieter. I added fiberglass insulation to the compartment that houses the ac unit. Success, much, much quieter now.

[mgtann]

Is this safe to do . Will it cause any heat up or fire problem? I would like to make the cool cat quieter but want to make sure it is safe


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[galoot]

Originally Posted by mgtann

Is this safe to do . Will it cause any heat up or fire problem? I would like to make the cool cat quieter but want to make sure it is safe


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I left a gap of about 6 inches between the condenser and the insulation, the heat exchange takes place on the outside of the cool cat so there will be no heat build up. The void between the cool cat and where it is ducted into the A frame acts like an echo chamber against the hard wood. The insulation fills the void and dampens the sounds.

[galoot]

the first photo is the insulation in place, I actually decided to use blanket insulation like what you would wrap a water heater. The 2nd photo is blanket insulation on top of the ducts, 3rd is the paneling reinstalled and the 4th is the bed I installed to replace the dinette.

[D-mo]

this looks like an excellent idea ... but don't void the warranty .. cause if it blows ... well it blows back to your pocketbook .. .. so to speak ..

welcome .. d-mo

[Pooneil]

Nice mod. The is a lot of wasted space in that compartment that can't easily be converted to a functional use. Sound batting is the best I've seen yet to increase the quality of the camper.

[Big Vic]

I wonder if a custom cut piece of 2-3" hard foam insulation would help? Less likely to move around and potentially plug up air flow around the fins.

That unused space would be a good location for a safe!

[Pooneil]

There is no heat exchanger open to the inside of the compartment. All the air moves through duct work.

[Big Vic]

Wow...what a difference! I put an old 1" foam full size mattress pad folded up to fit most of the open space under the bench next to the cool cat. I left about 6" open space next to the cat just in case some air flow is needed. So much quieter now...as mentioned above, the empty space was acting like a resonator - amplifying the vibration noise from the cat.


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[mikeandclay]

The first time we took our new a122 out I woke up *every* time the air came on! Added the insulation and what a difference it makes! Great idea!!! And thank you for sharing!