L.B. White Guardian AD250 Assembly And Installation Instructions Manual page 8

Outdoor Installation Kit
8
FIG. 16
6. Ensure heater clearances are as shown in Fig. 17.
FIG. 17
WALL
TRIM PIECES
DUCT
7. Fill in void around duct with non-combustible insulation.
8. Seal the edges of duct hole at interior and exterior of building. Use waterproof caulk. If desired, install
trim pieces. Fold the duct trim frames around the duct assembly at both sides of wall. Attach with 3/4
in. sheet metal screws. See schematic on following page.
Outdoor Installation Kit • AD250 & AW250
BOLT 3/8 X 1 3/4
SPACER
3/8 WASHER
3/8 NUT
6 IN. MINIMUM
(15.2cm)
24 IN. MINIMUM
(61cm)
GROUND