12-07-2022, 04:38 AM
18k compressor installed and the head unit hooked up and working its quite and it puts out a lot of heat, we may have gone over board on the rear unit I think 12k heat pump would have been more than enough but we will see come summer. We had 4 tons of heat air that was not functioning right, the duct work in the front bay where the basement air was located was a mess and not done correctly, when the AC came on it sounded like being on the flight deck and a jet goes to afterburners. The duct work Newell did was beautifully done and I hated to cut into it but now we have state of the art heat pumps and whisper quite. When I get it all buttoned up and trimmed out I will post pictures, I will also take my clamp on amp meter and show what the current draw is for each unit. We have 24k btu with two 12k btu evaporators in the front and one 18k btu evaporator in the back, both compressors are in the basement air area.
I called and talked with one of the engineers that works for Ecomfort.com where we bought all the equipment and asked why the 18k unit was so much bigger than the 24k unit, he told me that the 18k unit was a newer model compressor and more efficient and heated down to the -13 degrees F and it uses 2 inverter compressors to do it thats why its bigger if I would have ordered the old style unit that the compressor was smaller. We had a lengthy discussion and he told me all LG units are over sized by 30% and that my 24000 btu unit which has hook ups for 3 evaporators and its common to run two 12k and one 7k btu evaporators all using the 1/4" 3/8" line sets. As for the cost we spent $7107.23 total for everything to make this happen. I could have gotten by 50% cheaper by using C&H units but both of us wanted something that represented the interior of the coach and LG has some cool stuff.
So now we are warm I started looking where the heat was escaping, here are a few pictures but I see the vent on the roof as a major problem
I called and talked with one of the engineers that works for Ecomfort.com where we bought all the equipment and asked why the 18k unit was so much bigger than the 24k unit, he told me that the 18k unit was a newer model compressor and more efficient and heated down to the -13 degrees F and it uses 2 inverter compressors to do it thats why its bigger if I would have ordered the old style unit that the compressor was smaller. We had a lengthy discussion and he told me all LG units are over sized by 30% and that my 24000 btu unit which has hook ups for 3 evaporators and its common to run two 12k and one 7k btu evaporators all using the 1/4" 3/8" line sets. As for the cost we spent $7107.23 total for everything to make this happen. I could have gotten by 50% cheaper by using C&H units but both of us wanted something that represented the interior of the coach and LG has some cool stuff.
So now we are warm I started looking where the heat was escaping, here are a few pictures but I see the vent on the roof as a major problem
1999 45' #504 "Magnolia"
Gravette, Arkansas
1996 40 XL Prevost Marathon