[Equest-users] PTAC system

Bishop, Bill bbishop at PathfinderEngineers.com
Mon Jul 20 13:16:17 PDT 2009

In Wizard Mode, select DX Coils for cooling and Electric Resistance for
heating, then select, "Packaged Terminal AC with Elec Resist Heat".
Select "System per Zone" on the same screen. Then in DD Edit Mode,
change the HEAT-SOURCE to "Hot Water Loop" for each system.
William Bishop, EIT, LEED(r) AP | Pathfinder Engineers & Architects LLP
Mechanical Engineer
134 South Fitzhugh Street
Rochester, NY 14608
T: (585) 325-6004 Ext. 114
F: (585) 325-6005
bbishop at pathfinderengineers.com
P Please strive to live sustainably.

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of
Eckwahl, Tom
Sent: Monday, July 20, 2009 4:03 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] PTAC system
I'm sure someone has modeled ASHRAE system type 1 in Equest; I don't
know why it isn't set up to be more user friendly to the baseline
systems types.  When "hot water coils" is selected as the heating source
the system types are as follows:
1.	none
2.	packaged VAV with how water reheat
3.	packaged multizone with HW heat
4.	packaged DX parallel fan powered VAV with hot water reheat
5.	packaged DX series fan powered VAV with hot water reheat
None of these really apply to a PTAC system.  If your heating source is
set at elec resistance it gives you Packaged single zone dx with
electric heat as the system type.... Which is perfect.
I guess I'm going to go with "packaged multizone with HW heat" and try
to manipulate it to my system.
Any suggestions?
Thomas N. Eckwahl
Project Engineer, Mechanical
1274 Hunt Rd.
P.O. Box 347
Ashville, NY 14710
P 716.484.9191
F 716.763.8040
E  teckwahl at karpinskieng.com
W www.karpinskieng.com <http://www.karpinskieng.com/> 
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