YORK INTERNATIONAL
118
FORM 100.50-NOM1 (604)
Service
FIG. 50 –
BINARY LED DESIGNATIONS
LD07637A
1S
T
ST
AG
E
HE
AT
/C
OOL
2N
D
ST
AG
E
HE
AT
/C
OO
L
LE
D
TO
RI
GH
TOF
RE
LA
Y
IS
"O
N"
WH
EN
RE
LA
Y
IS
EN
ER
GI
ZED
3R
D
ST
AG
E
HE
AT
/C
OO
L
4T
H
ST
AG
E
HE
AT
/C
OO
L
6T
H
ST
AG
E
HE
AT
/C
OO
L
SU
PPL
Y
FA
N
HE
AT
RE
LA
Y
OU
TP
UT
EX
HA
US
T
FA
N
C/
O
RE
LA
Y
(C
HA
NG
EO
VE
R)
5T
H
ST
AG
E
HE
AT
/C
OOL
LE
D
LE
D
LE
D
AL
AR
M
LE
D
ET
HER
NET
PO
RT
RS
-2
32
PO
RT
DI
SP
LA
Y
PO
RT
N2
PO
RT
Di
sp
lay
Po
rt/
N2
Po
rt
Ho
tW
at
er
St
at
Ch
a
n
g
e
O
ve
r
R
e
la
y
S
ta
tu
s
LO
W
E
RR
IG
H
T
-H
A
N
D
C
O
R
N
E
RO
F
M
O
D
-D
C
U
Sa
fe
ty
CK
T
1
Sa
fe
ty
CK
T
2
Sa
fe
ty
CK
T
3
Em
er
ge
nc
y
St
op
Sm
ok
e
Pu
rg
e
Ai
r
P
ro
vi
ng
Sw
itc
h
Fi
lte
r
Sw
itc
h
G
In
pu
t
O
CC/
U
N
O
CC
In
pu
t
VF
D
By
pa
ss