©2005 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651
MNL-IS6000 13
®
Big Dipper
®
IS System
Wiring Diagram
NOTE:
220-240V Units (International Units) have the
following wire color changes:
On the POWER SUPPLY CORD:
The Black Wire becomes Brown
The White Wire becomes Blue
The Green Wire becomes Yellow/Green
Wiring Diagram For Big Dipper Models
W-150-IS Through W-500-IS
POWER SUPPLY CORD
MOTOR
INTERLOCK�
SWITCH
HEATER
THERMOSTAT
GREEN
BLACK
WHITE
BLACK
WHITE
WHITE
BLACK
RING TERMINAL TO�
GROUND STUD
BLACK
FULLY INSULATED�
QUICK CONNECT
FULLY INSULATED�
QUICK CONNECT
PIGGY-BACK�
CONNECTOR
FULLY INSULATED�
FEMALE CONNECTOR
BLACK
RED
WHITE
WHITE
WHITE
BLACK
BLACK
BLACK
TIMER
RED
1
2
3
4
5
UNIT IS SHIPPED FROM
THE FACTORY WIRED�
FOR SIMULTANEOUS
OPERATION. THIS MEANS
THE HEATER AND MOTOR
OPERATE AT THE SAME
TIME UNDER TIMER
CONTROL. CONTINUOUS
HEATER OPERATION IS
WHERE THE HEATER IS
ACTIVE AT ALL TIMES. TO
SWITCH TO CONTINUOUS
HEATER OPERATION,
SWITCH THE RED WIRE
ON THE THERMOSTAT
WITH THE BLACK WIRE.
