FORM 155.21-O1 (615)
3
JOHNSON CONTROLS
NOMENCLATURE
ASSOCIATED LITERATURE
DESCRIPTION
FORM NO.
OPERATION – YIA UNIT
155.21-OM1
SERVICE – YIA UNIT
155.21-M2
INSTALLATION – YIA UNIT
155.21-N1
SERVICE – YIA OPTIVIEW CONTROL CENTER
155.21-M1
RENEWAL PARTS – YIA OPTIVIEW CONTROL CENTER
155.21-RP1
RENEWAL PARTS – YIA UNIT
155.21-RP2
WIRING DIAGRAM – YIA UNIT
155.21-W1
WIRING DIAGRAM – YIA FIELD CONTROL MODIFICATIONS
155.21-W2
WIRING DIAGRAM – YIA FIELD CONNECTIONS
155.21-W3
VOLTAGE CODE
17=208-3-60
28=230-3-60
46=460-3-60
50=380/400/415-3-50
58=575-3-60
YIA
ST
1A1
46
C
S
D
SPECIAL
S = Std Tubes
X = Special Tubes
COOLING ONLY
DESIGN LEVEL
UNIT SIZE
1A1 through 14F3
HEAT SOURCE
ST=Steam
HW=Hot Water
UNIT TYPE
YORK IsoFlow Absorption Chiller
CHANGEABILITY OF THIS DOCUMENT
In complying with YORK/Johnson Controls policy
for continuous product improvement, the information
contained in this document is subject to change without
notice. While Johnson Controls makes no commitment
to update or provide current information automatically
to the manual owner, that information, if applicable,
can be obtained by contacting the nearest YORK/
Johnson Controls Service Office.
It is the responsibility of operating/service personnel
as to the applicability of these documents to the equip-
ment in question. If there is any question in the mind
of operating/service personnel as to the applicability of
these documents, then, prior to working on the equip-
ment, they should verify with the owner whether the
equipment has been modified and if current literature
is available.