173
YORK INTERNATIONAL
FORM 100.50-NOM1 (604)
8
LD07763
HE AT ING
C O ILS
15.43K W
C O NT AC T O R
O P E R AT ING
AW G MIN. C O P P E R C O NDUC T O R S
S UIT AB LE F O R AT LE AS T 75°C . (167°F .)
F O R G R O UND C O NNE C T IO NS US E
DIS C O NNE C T ING
B Y O T HE R S
O V E R C UR R E NT
(IF R E Q UIR E D)
ME ANS AND
P R O T E C T IO N
L2
L3
L1
G ND
C O NT R O L:(F AC T O R Y W IR E D)
P O W E R :(F AC T O R Y W IR E D)
P O W E R :(F IE LD W IR E D)
C O NT R O L:(F IE LD W IR E D)
E LE C T R O DUC T
HE AT E R
3
3T B
27F U
F US E S
60 Amps
F US E S
60 Amps
C O NT AC T O R
O P E R AT ING
27M
26M
HE AT ING C O IL B ANK
7MT C O
1HC B
HE AT ING
C O ILS
15.43K W
T HE R MAL C UT O UT
MANUAL R E S E T
6MT C O
T HE R MAL C UT O UT
MANUAL R E S E T
F US E S
60 Amps
26F U
25F U
22F U-24F U
F US E S
60 Amps
F US E S
P R IMAR Y
G ND
T R ANS F O R ME R S
IN P AR ALLE L
4/10 Amp
DO O R
S W IT C H
INT E R LO C K
20F U
21F U
11T -12T
1DIS
T UR NE D O F F S E Q UE NT IALLY IN T HE R E V E R S E
T HIS G R O UP C O NT AINS
S T E P S .
NO T S HO W N AR E W IR E D T HE S AME
AS S T E P (S )
S T E P (S )
2 thru 4
1 and 5
5
C O NT AC T O R
O P E R AT ING
2P R -4P R
6P R
5P R
P ILO T R E LAY
P ILO T R E LAY
C O NT AC T O R
O P E R AT ING
25M
P ILO T R E LAY
22M-24M
21M
AIR F LO W
S W IT C H
C O M
NO
1P R
C O NNE C T
P R E S S UR E P O R T
P R E S S UR E T UB E
O R DE R ; . . . 3, 2, 1.
1AF S
T O HIG H
1AT C O
P ILO T R E LAY
C UT O UT
R E S E T
T HE R MAL
AUT O MAT IC
C6
C1
C T B 3
HE AT ING
C O ILS
15.43K W
HE AT ING
C O ILS
15.43K W
T HE R MAL C UT O UT
MANUAL R E S E T
5MT C O
2MT C O-4MT C O
1MT C O
T HE R MAL C UT O UT
MANUAL R E S E T
C
C O NT R O LLE R S MUS T B E W IR E D S O T HAT T HE
S T AR T ING W IT H S T AG E S 1, 2, 3, . . . AND
HE AT E R S T AG E S AR E T UR NE D O N S E Q UE NT IALLY
E X T E R NAL MULT IS T E P T HE R MO S T AT O R S T E P
C AUT IO N:
24 V AC , 12V A R E Q UIR E D
S T E P C O NT R O LLE R
O R T HE R MO S T AT
B Y O T HE R S
HO
T
GN
D
(B Y O T HE R S )
C O NT R O L V O LT AG E
1.
F or s upply connections us e min.
MC M copper conductors s uitable
for us e at 167°F (75°C ).
2.
F ield terminals s uitable for us e with
1 x 500 MC M copper conductors only.
3.
W ire gauges are bas ed on not more than
3 wires in a s ingle conduit.
4.
T his heater requires s upply circuit(s )
of .108.00 kW .
5.
S upply voltage P has e 208/3
C ontrol voltage P has e 24/1
6.
C ontrol circuit wiring to be NE C C las s 1.
