JOHNSON CONTROLS
4
FORM 145.05-SU3 (611)
ISSUE DATE 6/01/2011
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls policy for contin-
uous product improvement, the information contained
in this document is subject to change without notice.
While Johnson Controls makes no commitment to up-
date or provide current information automatically to
the manual owner, that information, if applicable, can
be obtained by contacting the nearest Johnson Con-
trols Service office.
NOMENCLATURE
BASE MODEL NUMBER
1
2
3
4
U - Upflow
W - Water Cooled
S - Self Contained
Y - YORK
D - Downflow for FlexSys
5
0
6
3
7
9
Base Product Type
Nominal Tonnage
It is the responsibility of operating/service personnel
to verify the applicability of these documents to the
equipment in question. If there is any question in the
mind of operating/service personnel as to the applica-
bility of these documents, then prior to working on the
equipment, they should verify with the owner whether
the equipment has been modified and if current litera-
ture is available.