9
WIRING DIAGRAMS
Field Installed
Built-in Or Field Installed
Factory Wiring
Stage 2
Elements
Motor
3Ø
Stage 1
Elements
Contactor
C1
C2
T1T2T3
T1T2T3
Fuses KTK-3
Fuses
(When Req'd)
BL1
BL2
BL3
L2
L1
L3
3 Phase
60 HZ Power
AL1
AL2 AL3
34-43, 35-43 34-45, 35-45
Fan Relay
C3
Optional Disconnect
Switch Built-in Or
Field Installed
Not For Use With 480V
Cutouts
C1
Optional Thermostat
Built-in Or
Field Installed
Contactor
C2
C3
1
2
3
8
9
7
10 11
12
Summer Fan Switch
Motor
3Ø
C1
T1T2T3
C2
T1T2T3
Contactor
C2
Standard Motor Connection
Figure R
L1
Contactor
(Typ.)
Fuses
(When Req'd)
AL3
AL2
AL1
BL1
BL2
BL3
Optional Summer
Fan Switch
Built-in Or
Field Installed
Stage 2
Elements
Motor
3Ø
Cutouts
Note:
Heater Requires
Fan Relay For 480V Motors
(See Fig. R)
Optional Disconnect
Switch Built-in Or
Field Installed
34-41 34-42 34-44
C1
T3
T2
T1
L2 L3
1
2
3
8
9
7
10
11
12
Stage 1
Elements
Motor
3Ø
3 Phase,
60 HZ Power
Optional Thermostat
Built-in Or
Field Installed
C1
T1 T2
T3
C2
T1 T2
T3
To Elements
Stage 1
To Elements
Stage 2
Standard Motor Connection
Fuses
KTK-3
C2
T3
T2
T1
Field Wiring
Built-in Or Field Installed
Factory Wiring
Figure Q
Field Installed
Built-in Or Field Installed
Factory Wiring
Transformer
Color Code Index
Stage 2
Elements
MOTOR
3Ø
Stage 1
Elements
Contactors
C1
C2
T1T2T3
T1T2T3
C3
C2
C1
X1
X2
H2
H1
Contactor
Cutouts
XFMR
Fan
Stage 1
Stage 2
2 Stage Thermostat
(By Others)
Fuses KTK-3
Fuses
(When Req'd)
BL1
BL2
BL3
L2
L1
L3
3 Phase
60 Hz Power
AL1
AL2 AL3
Disconnect
Switch Built-in Or
Field Installed
32-00 30-00
PRI.
VOLT.
PRI. XFMR
LEAD CLRS.
120V SEC.
LEAD CLRS.
24V SEC.
LEAD CLRS.
208
240
480
H1
BLK
BLK
BLK
H2
RED
ORG
BLK/RED
X1
BLK
BLK
BLK
X2
WHT
WHT
WHT
X1
YEL
YEL
YEL
X2
BLU
BLU
BLU
Warning -
First Stage Of
Thermostat Must Be
Connected To Terminals C1
& C2 To Insure That Motor
Will Be Energized With First
Stage Heat Operation
Note:
For Single Stage
Thermostat, See Fig. J
Figure S
Field Installed
Built-in Or Field Installed
Factory Wiring
Transformer
Color Code Index
Stage 2
Elements
Motor
3Ø
Stage 1
Elements
C1
C2
T1T2T3
T1 T2T3
C3
C2
C1
X1
X2
H2
H1
Contactor
(Typ.)
XFMR
Stage 1
Fuses
(When Req'd)
BL1
BL2
BL3
3 Phase
60 HZ Power
AL1
AL2 AL3
Disconnect
Switch Built-in Or
Field Installed
30-43 32-43
C4
C3
Heat
Fan
Stage 2
L1 L2 L3
Fuses KTK-3
2 PDT Switch
(By Others)
2 Stage Thermostat
(By Others)
Cutouts
C1
C4
C2
C3
4
2
1
3
Jumper
Fan
Heat
Thermostat
Jumpers
Thermostat
W/sub-base
(By Others)
Alternate Customer Hook Up (1 Stage)
PRI.
VOLT.
PRI. XFMR
LEAD CLRS.
120V SEC.
LEAD CLRS.
24V SEC.
LEAD CLRS.
208
240
480
H1
BLK
BLK
BLK
H2
RED
ORG
BLK/RED
X1
BLK
BLK
BLK
X2
WHT
WHT
WHT
X1
YEL
YEL
YEL
X2
BLU
BLU
BLU
Warning -
First Stage Of
Thermostat Must Be
Connected To Terminals C1 &
C2 To Insure That Motor Will
Be Energized With First Stage
Heat Operation
Figure T
Contactors
AL3
AL2
AL1
BL1
BL2
BL3
Stage 2
Elements
C1
T3
T2
T1
Stage 1
Elements
C2
Stage 1
Stage 2
C1
C2
C3
Fan
2 Stage Thermostat
(By Others)
Cutouts
Optional Disconnect
Switch Built-in Or
Field Installed
Fuses
(When Req'd)
Fuses
KTK-3
L1 L2 L3
3 Phase,
60 HZ Power
Field Installed
Built-in Or Field Installed
Factory Wiring
31-00 33-00
T3
T2
T1
Warning -
First Stage Of Thermostat
Must Be Connected To Terminals C1 & C2
To Insure That Motor Will Be Energized
With First Stage Heat Operation
Motor
3Ø
Control Power
(By Others)
Note:
For Single Stage
Thermostat, See Fig. M
Figure U
Field Installed
Built-in Or
Field Installed
Factory Wiring
Stage 2
Elements
Motor
3Ø
Stage 1
Elements
C1
T1 T2
T3
C3
C2
C1
Contactor
(Typ.)
Stage 1
Fuses
(When Req'd)
BL1
BL2
BL3
3 Phase
60 HZ Power
AL1
AL2 AL3
Optional Disconnect
Switch Built-in Or
Field Installed
34-43 35-43
C4
C3
Heat
Fan
Stage 2
L1 L2 L3
Fuses KTK-3
2 PDT Switch
(By Others)
2 Stage Thermostat
(By Others)
Cutouts
C1
C4
C2
C3
4
2
1
3
Jumper
Fan
Heat
Thermostat
Jumpers
Thermostat
W/sub-base
(By Others)
Alternate Customer Hook Up (1 Stage)
Warning -
First Stage Of Thermostat
Must Be Connected To Terminals C1 & C2
To Insure That Motor Will Be Energized
With First Stage Heat Operation
C2
T1T2
T3
Fan
Relay
Figure V
Field Installed
Built-in Or
Field Installed
Factory Wiring
Stage 2
Elements
Motor
3Ø
Stage 1
Elements
C1
T1T2
T3
C3
C2
C1
Contactor
(Typ.)
Stage 1
Fuses
(When Req'd)
BL1
BL2
BL3
3 Phase
60 HZ Power
AL1
AL2 AL3
Optional Disconnect
Switch Built-in Or
Field Installed
31-45 33-45
C4
C3
Heat
Fan
Stage 2
L1 L2 L3
Fuses KTK-3
2 PDT Switch
(By Others)
2 Stage Thermostat
(By Others)
Cutouts
C1
C4
C2
C3
4
2
1
3
Jumper
Fan
Heat
Thermostat
Jumpers
Thermostat
W/sub-base
(By Others)
Alternate Customer Hook Up (1 Stage)
Warning -
First Stage Of Thermostat
Must Be Connected To Terminals C1 & C2
To Insure That Motor Will Be Energized
With First Stage Heat Operation
C2
T1T2
T3
Fan
Relay
Control Power
(By Others)
Figure W
Field Installed
Built-in Or Field Installed
Factory Wiring
Transformer Color Code Index
Stage 2
Elements
Motor
3Ø
Stage 1
Elements
C1
C2
T1T2T3
T1 T2T3
C3
C2
C1
X1
X2
H2
H1
Contactor
(Typ.)
XFMR
Stage 1
Fuses
(When Req'd)
BL1
BL2
BL3
3 Phase
60 HZ Power
AL1
AL2 AL3
Disconnect
Switch Built-in Or
Field Installed
30-45 32-45
C4
C3
Heat
Fan
Stage 2
L1 L2 L3
Fuses KTK-3
2 PDT Switch
(By Others)
2 Stage Thermostat
(By Others)
Cutouts
C1
C4
C2
C3
4
2
1
3
Jumper
Fan
Heat
Thermostat
Jumpers
Thermostat
W/sub-base
(By Others)
Alternate Customer Hook Up (1 Stage)
Warning -
First Stage Of
Thermostat Must Be Connected
To Terminals C1 & C2
To Insure That Motor Will
Be Energized With First
Stage Heat Operation
PRI.
VOLT.
PRI. XFMR
LEAD CLRS.
120V SEC.
LEAD CLRS.
24V SEC.
LEAD CLRS.
208
240
480
H1
BLK
BLK
BLK
H2
RED
ORG
BLK/RED
X1
BLK
BLK
BLK
X2
WHT
WHT
WHT
X1
YEL
YEL
YEL
X2
BLU
BLU
BLU
Figure X
