3
JOHNSON CONTROLS
FORM 100.50-SU3 (1207)
CHANGEABILITY OF THIS DOCUMENT
In complying with JOHNSON CONTROL’s policy for continuous prod uct improvement, the in for ma tion con tained
in this doc u ment is subject to change without notice. While JOHNSON CONTROL makes no com mit ment to update
or provide current in for ma tion au to mat i cal ly to the manual owner, that in for ma tion, if ap pli ca ble, can be ob tained
by con tact ing the nearest JOHNSON CONTROL Applied Systems Service offi ce.
It is the responsibility of operating/service personnel to verify the ap pli ca bil i ty of these doc u ments to the equip ment
in question. If there is any question in the mind of operating/service personnel as to the applicability of these
doc u ments, then prior to work ing on the equip ment, they should verify with the owner whether the equip ment has
been modifi ed and if current literature is avail able.
NOMENCLATURE
BASE MODEL NUMBER
LD12725A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Base
Type
Refrigerant
Supply
Openings
Return
Openings
Design Special
Y
:YORK
5
0
:50 Ton Capacity
:208/3/60
P
:Packaged Rooftop
0
5
1
:50 Ton Capacity
C :R-22
:230/3/60
A
:Air Cooled
0
6
0
:60 Ton Capacity
E :R-410A
4
6
:460/3/60
L
:Scroll
0
6
1
:65 Ton Capacity
5
8
:575/3/60
4
0
:380/3/60
4
5
:400/3/50
F :Full Modulating Gas Heat SS Staged HX
Voltage
2
5
X :Standard
S :Special
A :Standard
B :Standard
N :Staged Natural Gas Heat
G :Staged Natural Gas Heat SS HX
M :Full Modulating Gas Heat
E :Electric Heat
H :Hot Water Heat
S :Steam Heat
F :Flexsys
C :Cooling Only
Base Model Number
YPAL050-061
C :Constant Volume
V :VAV, VFD
Product
Nominal Capacity
Application
0
B :R-407C
L :Left Supply
R :Right Supply
B :Bottom Return
R :Rear Return
S :Side Return
F :Revision Level F
