Model 401 & 403 Pass-Thru
Service and Installation Instructions
99-21972-S001 Rev. C
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1
Frame Junction Box Wiring (Standard Production)
1.
Remove frame junction box cover.
2.
Wires are marked as to application
a.
Black for frame heater.
b.
Red for door heater (if present).
c.
White, common for Black and Red.
d.
Blue for lights.
e.
Blue/White stripe, common for lights.
f.
Green/Yellow stripe for ground.
Heater Wire Diagram
1.
Heater wire location.
2.
See amperage charts in back of manual.
