
25
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
ADraft Adjuster
Draft Adjuster 
The Winslow™ PI40 insert has a draft adjuster  located at the right side 
of the insert directly in front of the combustion blower. Should the insert 
installation require long  runs of  vent pipe, a  situation may be  created 
where excessive combustion air is flowing through the firebox and caus-
ing the fuel to burn faster than it can be delivered to the burn pot. Should 
this happen, the  draft can be  slowed down by the  adjuster. The insert 
is shipped with the adjuster in the fully open position. To slow the draft 
down, loosen the 5/32” allen head screw (A in Figure 45) and move the 
adjuster handle toward the center of the insert. Retighten the screw when 
the desired adjustment is reached.
Wiring Diagram
Molex 10 Pin Connector
10
YEL
9
RED
8
WHT
7
GRY
6
BRWN
5
ORNG
4
BLK
3
GRN
2
BLU
1
VIOL
Figure 45
Figure 46
Draft Adjuster
A
YELLOW
PROOF OF
FIRE SNAP
SWITCH
IGNITER
VACUUM
SWITCH
COMBUSTION
BLOWER
ORANGE
BROWN
GREEN
GROUND
BROWN
BLACK
GREEN
GRAY
BLUE
VIOLET
OVER TEMP
SNAP SWITCH
BLOWER
SNAP SWITCH
RED VIOLET
ORANGE
BROWNBROWN
YELLOW
GREEN
BLUE
GRAY
WHITE
BLACK
RED
WHITE
WHITE
WHITE
WHITE
AUGER
MOTOR
ROOM AIR 
(CONVECTION) BLOWER
WHITE
BLACK
WHITE
BUS
WHITE