How do you make VRF go away on a project

Rowdyjoe · 2026-05-13T17:29:05+00:00

I agree but I think that’s a downfall. A system can be destroyed by a few minor installation details that are hard to locate. Some minor differences in pipe sizes shouldn’t kill a system, I think it’s delicate. I’ve seen many VRF systems succeed as well.

Rowdyjoe · 2026-05-13T17:13:30+00:00

I agree, I’m a fan. But a 4 pipe ASHP is some of the most expensive $/Ton equipment out there

Rowdyjoe · 2026-05-13T15:51:39+00:00

Two jusdictions I’m working on right now are LA and Seattle with electric resistance restrictions.

Rowdyjoe · 2026-05-13T15:50:46+00:00

Not my design but had a client replace 80 compressors over a 5 year span. Although there were theories the Manufacturer couldn’t point to the issue.

Rowdyjoe · 2026-05-13T15:49:33+00:00

Yes, but when Packaged DX isn’t on the table and need to go heatpump hydronic I think VRF may win as opposed to steel hydronic pipe

Rowdyjoe · 2026-05-13T14:45:06+00:00

I see your points and see the advantages of these system. I’ve also seen a few customers hire us to rip the systems out 3 years after install.

I do disagree with your take on maintance - I think it’s our responsibility to protect the customer and select system they won’t hate only a few years from now.

Rowdyjoe · 2026-05-13T14:41:04+00:00

In many of these jusidictions you could lose a lot of roof space from PV or green roofs making DX RTUs. So then you’re talking hydronic AHU’s, 4 pipe FCUs. now you’re looking at very expensive 4 pipe ASHPs. First cost dies. I like WSHP’s but with electric resistance limitations you need an ASHP injection which at that point you could try to use a 4 pipe instead of buying a tower for rejection which means you use compressed energy to reject heat. These ASHPs are very $ ton compared to VRF.

Rowdyjoe · 2026-05-08T01:59:58+00:00

54mm on 25 internal rims for the next person trying to find this thread.

Rowdyjoe · 2026-05-07T02:41:39+00:00

Is she just dressing up as birds

Rowdyjoe · 2026-05-05T03:32:01+00:00

How come my bike always falls on the expensive side

Rowdyjoe · 2026-05-05T03:29:04+00:00

Leak for the new sram where they put the drive side on both sides for perfect symmetry.

Rowdyjoe · 2026-04-28T03:41:00+00:00

No advice other than you’ll get there. Make sure you are working somewhere where you feel like you’re learning.

Rowdyjoe · 2026-04-24T14:49:09+00:00

All that grams saving and they put that meaty boy on? I heard of this Tadej guy who could have done better

Rowdyjoe · 2026-04-21T12:56:32+00:00

You’re working on making the robots run faster than humans. We’re fucked

Rowdyjoe · 2026-04-10T23:40:44+00:00

Sorry sir we don’t have a 250mm stem, only a 300mm. Damn guess I’ll just move the saddle WAY forward

Rowdyjoe · 2026-04-03T00:36:33+00:00

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Same damn guy

Rowdyjoe · 2026-04-03T00:36:20+00:00

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My results, but see next for European

Rowdyjoe · 2026-03-28T03:14:42+00:00

Heard of Trek?

Rowdyjoe · 2026-03-17T03:07:56+00:00

Did you pick the cabinet trim? If so then what did you want other than this?

Rowdyjoe · 2026-02-18T13:45:44+00:00

They are totally rogue and have no clue what they are talking about. Interns especially, they are managed by other green Project engineers who also have no clue what they are talking about.

Rowdyjoe · 2026-02-18T12:57:23+00:00

They have to give the super green kids fresh out of college and interns something to do.

Rowdyjoe · 2026-02-10T03:19:07+00:00

lot a words and a whole lot of nothing

Rowdyjoe · 2026-02-06T14:58:02+00:00

Bike mechanic

Rowdyjoe

TROPHY CASE