[Equest-users] difference between PTAC and PSZ

[M. Shields]

A PTAC is typically what you would think of as a window air conditioning
unit.  A PSZ is also called a split system and would be installed using duct
work.  I believe the main difference is that the PSZ has duct work and is a
split system and the PTAC has everything contained in a single unit.  It
depends what kind of residential building you're talking about but for homes
the PSZ would certainly be more common.  I think PTACs are most common in
buildings which did not originally have air conditioning installed because
it is easiest to add later since there is no central system.

 

I found a few topics in the equest help which might be useful.  If you
search for "PSZ" there is an article called "System Type = PSZ" which gives
a description of PSZ.  For PTAC there is an article called "PTAC with
Air-to-Air Heat Pump:" which gives a description of PTAC.  They both also
have pretty good diagrams.

 

Hope that helps.

 

Michael

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Vipin
Sharma
Sent: Monday, April 18, 2011 2:26 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] difference between PTAC and PSZ

 


Hi...............
                  what is the difference between PTAC and PSZ.
                  what AC ia used for residential purpose.
                   Thanks in advance
Regards
vipin sharma
student 
Energy Engg.

 

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