Wiring Diagrams - Chromalox HD3D Installation, Operation And Maintenance Instructions

Wiring Diagrams

REMOVE JUMPER WHEN THERMOSTAT IS USED
LOCATED IN HEATER
HEATER
M
THRU
BULKHEAD
L1 L1 L1
L1 L1
TERMINAL
BLOCK
120V 1 PHASE
HD3D-200 & HD3D 300 120V 1Ø
3PH ELEMENT WIRING
T1 T1 T2 T3
T1 T2 T3
POWER
CONTACTOR
L1 L2 L3
BLACK
BLACK
BLACK
FOR VOLTAGE AND PHASE
SEE HEATER NAMEPLATE
HD3D-500 thru HD3D 4000
BUILT IN OR WALL
MOUNTED THERMOSTAT
AUTOMATIC
OVERHEAT
TERMINAL
CUTOUT
BLOCK
C1 C2
(CONTROL)
T3
C1
THRU BULKHEAD
FITTING
M
2T 6T
T3
T2
4T
RED
ORANGE
2T1 4T2 6T3
A2
1L1 3L2 5L3
A1
MOTOR
CONTACTOR
OMIT FOR 1Ø
XFMR Color Code Tabulation
Pri. Volt.
208
240
277
480
575
690
POWER
T1 T2
CONTACTOR
L1 L2
TRANSFORMER 40VA
FOR VOLTAGE
SEE HEATER
HD3D-200 and HD3D 280-277V 1Ø
1PH ELEMENT WIRING
T1
T1 T1 T2
T2 T2
IN HEATER
BLK
BLUE
AR CUTOUT
NO C
YELLOW
6
WHITE
TIME DELAY
X1 X2
SEC
REFER TO NAMEPLATE FOR XFMR PRIMARY
(INPUT) AND SECONDARY (CONTROL)
VOLTAGE.
TRANSFORMER
40VA
H1 H2
PRIMARY
Pri. XFMR Lead Clrs. 120V Sec. Lead Clrs.
H1 H2 X1
BLK RED BLK
BLK ORG BLK
BLK BRN BLK
BLK BLK/RED BLK
BLK GRY BLK
BLK GRY -
8
M
BUILT IN OR REMOTE THERMOSTAT
T1
IN HEATER
T2
BLK BRN
RED
BLK
AR CUTOUT
SEC
X1 X2
REFER TO NAMEPLATE FOR
XFMR PRIMARY (INPUT) AND
H1
SECONDARY (CONTROL) VOLTAGE.
H2
PRIMARY
1PH ELEMENT WIRING
T1 T1
BUILT IN OR REMOTE
THERMOSTAT
REMOVE JUMPER WHEN
THERMOSTAT IS USED
C1 C2
TERMINAL BLOCK
BLK BRN
(CONTROL)
NC
1
PINK
2
RELAY
24V Sec. Lead Clrs. 230V Sec. Lead Clrs.
X2 X1 X2
WHT YEL BLU
WHT YEL BLU
WHT YEL BLU
WHT YEL BLU
WHT YEL BLU
- - -
REMOVE JUMPER
WHEN THERMOSTAT
IS USED
TERMINAL BLOCK
C1 C2
(CONTROL)
T2 T2
X1 X2
- -
- -
- -
- -
- -
BLK WHT