Please explain Whisper Quiet Technology

[Cholo]

New here. I have been researching and looking at different 5th wheel RV's for about 6 months in hopes of a purchase/order soon after the new year. I really like the Pinnacle 38FLSA.

I am confused about the air conditioning system. Jayco uses Helix Cooling System called Whisper Quiet which uses air returns through a duct system but, when they add a unit, it does not use the same technology or does it? The model I seen in October had a second unit that looked to me as a stand alone type with the air return attached to the unit and it was noisy. My idea was to add a third unit in the front but, do not want the noise. Am I missing something? Can somebody explain why they cannot link all units together? I seem to have seen it in other brands.

Sorry for the ramble and I hope my thoughts/question doesn't sound like mush.

[namusmc65]

The units I have seen have the whisper quiet in the living room/kitchen area but the second unit in the bedroom is the standard unit which is loud. However, we use the noise for white noise when we are sleeping. The whisper quiet is great for watching television!

[Cholo]

Originally Posted by namusmc65

The units I have seen have the whisper quiet in the living room/kitchen area but the second unit in the bedroom is the standard unit which is loud. However, we use the noise for white noise when we are sleeping. The whisper quiet is great for watching television!

That's part of my question, why is it this way? If the duct work is already there why is it not all "whisper quiet"? I think other manufactures do this.

[edatlanta]

Originally Posted by namusmc65

The units I have seen have the whisper quiet in the living room/kitchen area but the second unit in the bedroom is the standard unit which is loud. However, we use the noise for white noise when we are sleeping. The whisper quiet is great for watching television!

The white noise from my front bedroom keeps my SO happy when she is sleeping. Noise around the RV doesn't bother her a bit.

[3'senough]

All the ducts in my unit tie into one another, but the bedroom unit has a chill grill in place of the skylight/vent where the optional AC was installed. The units are Coleman Mach low profile 15K units with the electric heat pump option.

in the living area it is fairly quiet due to the ceiling being sealed and a large center wood structure over the inlet of the AC system. That being said the BR is going to be louder due to the setup and proximity to the AC unit. Even if the ceiling was sealed I don't know how quiet it could be.

As far as technologies go I don't know what other options there are out there besides remote located units, much like a house. I can tell you that the fan outside is very loud when on though.