Ductless A/C
We are going to install a Mr. Slim system, well, pay a contractor to do so. Finalists are Iceberg or Arnica. Iceberg provided quote which includes electrical work and only requires one compressor on our roof for 4 heads (one in each bedroom, one in living room.) Arnica suggests 2 compressors as they believe one…
We are going to install a Mr. Slim system, well, pay a contractor to do so. Finalists are Iceberg or Arnica. Iceberg provided quote which includes electrical work and only requires one compressor on our roof for 4 heads (one in each bedroom, one in living room.) Arnica suggests 2 compressors as they believe one won’t be powerful enough on high-demand days. Also suggest compressor attached to living room be installed downstairs to avoid need to install pumps for condensation back up to roof unit. Further, their quote requires outside electrical contractor, one of whom they’ve recommended. Anyone with experience with either, please chime in. Thanks.
How did it go? We are looking to have the same type of installation for our condo. Got the same run around. Not enough heating with the one unit from Arnica etc.
We have a poorly insulated one floor condo with plenty of windows. Worried about the drop in BTUs during the very cold winter months.
My sad experience is having both Mitsubishi authorized dealers disappear after installation. One put in a pump that was later deemed useless by yet a 3rd dealer. AC companies disappear quickly. I do love my units – not perfect, but very good.
Neither contractors are on Angie’s list. Try O’Brien 516.488-1800 – many Mr Slim’s on the island
They are more heating than AC and my experience with them as a heating company was not um, exciting?
Denton, I guess the question is, why don’t you like them?
don’t like Arnica.
One advantage of 2 compressors is that you can turn a zone off completely when not in use.
Get a thermal load done. Statistics show that something like 60% of a/c installs are oversized (because the installers don’t want complaints on those 2 100+ days.) If you accept less-than-perfect cooling on the very hottest days and size accordingly, you’ll save a lot of money.
I don’t know either contractor. But you need to first determine how much cooling you actually need. Did anyone do any calculations other than with their thumb?
Two 18k compressors will be more efficient than than one 36k but much more expensive to install. But if one contractor is suggesting you need twice what the other says one, or both, is very wrong. Bigger is not better.
The closer the condensers are to the room units the better.
As for pumping the condensate I agree it makes no sense. Is he talking about a refrigerant pump?
Get some more prices and ask a lot of questions.
Arnica comments make no sense. You don’t pump the condensation back to the unit, you tie the drain into your plumbing stack. The number of condensers depends on the overall BTU’s you need, and your system should be sized to handle hot days. I think the Mitsubishi M series tops out at 36K per compressor, but other manufacturers like daikin go much higher, so it depends on the unit. If you are going to pay to put one compressor on the roof, you may as well put both up there if you need two. Sounds like you need to talk to more installers.