Jeff Lawrance/Spacepak answer

Ranger

I hope I am not being redundant,I have been away for a few days.I remember you had York 2 stage condensers if I remember correctly.The example last nite was a ESP-3642D horizontal a/h matched with a Coleman AC5B036F1 two stage R410a condenser will give you an ARI match of 13.30 SEER.The outdoor unit must remain in second stage.Thay say the vertical a/h's will give you a tick higher SEER than the horizontals.FYI,Spacepak IFM speed is 1750 rpm,Unico is 3450 rpm.Also I learned you can go to ari.org,select an "outdoor unit manufacture",select Spacepak as the "indoor coil manufacture,(mix match)",select a minimum seer,such as 13,click on "search" and it will give you a matching outdoor unit that will achieve the seer rating requested by the manufacture requested,if applicable.
Ranger

Jeff Lawrence_25

Redundant?

Never.

As I said before, I inherited this one as someone else started it and walked off the job. The existing condenser is a York ZH4TS036S06B twin single. I'll go to ARI.org and look it up for the homeowner.

This, gents, is what's great about the Wall!

Thanks Ranger.

Ranger

I'm not good,but I'm slow...:-)

Anytime I can be of help my brother!

Ranger

13.5 SEER

ARI Reference No:878032 York model:H4TS036S06B 13.50 seer
w/ESP-3642V w/time delay relay.

John Mills_5

Why 2 stage?

If a 2 stage unit must remain on high, why pay the big bucks to use one?

Jeff Lawrence_25

Like I say,

I am not the installer. I entered the picture when the installer walked off the job.

One thing I do know is that the ARI rating on a high velocity system is not the rating on the condenser. This particular condenser is a York Twin Single, rated at about 16 SEER, but is about 13.5 with this SpacePak.

David_5

2 stage

You could control the condenser with a two stage thermostat. You could control the second stage with an outside thermostat, above a certain temp would bring both stages on. Depending on how the unit works you may be able to control the second stage with an lpc. Below a certain pressure the second stage wouldn't run. Using one of the above methods and a fan handler control would produce some nice seers for you.

David