Bard W18A1 - Figure 3 C Mounting Instructions - W42, 48, 60, 70

Manual 2100-508A
Page 10 of 25
FIGURE 3C
W42A1, W42L1, W48A1, W48L1, W60A1, W60L1, W70A1, W70L1
MOUNTING INSTRUCTIONS
D
16" 16" 16" 16" 16"
1
7 8
"
6
1 2
" 6
1 2
"
2
1 8
"
7 8
"
1"
3"
4"
Typ.
4"
Typ.
6
1 2
"
30"
E
16"
A CC
3
1 8
"
B
RAIN FLASHING
TOP
RETURN AIR
1
1
DUCT
REQUIRED DIMENSIONS TO MAINTAIN 1/4" MIN. CLEARANCE FROM COMBUSTIBLE MATERIALS
REQUIRED DIMENSIONS TO MAINTAIN RECOMMENDED 1" CLEARANCE FROM COMBUSTIBLE MATERIALS
ABCDE
30 1/2
10 1/2
6 1/4 1 1/4 29 3/4
32 12 5 1/2
229
OPENING
Supply Opening
Dimension is 21" on W70A and W70L Units.
IT IS RECOMMENDED THAT A BEAD OF
SUPPLY AIR
NOTES:
TOP FLASHING AT TIME OF INSTALLATION.
Return Opening
SILICONE CAULKING BE PLACED BEHIND THE SIDE MOUNTING FLANGES AND UNDER
MIS-416 C
TOP.
WALL
FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED
WALL STRUCTURE
FROM COMBUSTABLE 1/4" CLEARANCE ON ALL MATERIALS
HEATER ACCESS
PANEL
FOAM AIR SEAL
SUPPLIED
Right Side View
Wall Opening and Hole Location View
1
SEAL WITH BEAD
OF CAULKING ALONG
ENTIRE LENGTH OF
W**A UNIT SHOWN, W**L UNIT CONTROLS AND HEATER ACCESS IS ON OPPOSITE (LEFT) SIDE.