Instructions / Assembly

START UP PROCEDURE / TROUBLESHOOTING
1-500.3 5
Figure 5.1
Bracket Installation for Vertical Air Delivery
Bracket Orientation for 10” or 12” Deep Joists
Bracket Orientation for 12” Deep Joists
Item Qty (total for unit) - Description

Qty (4) – Hex Bolts, 3/8"-16 x1"

Qty (4) – 3/8” Lock Washers

Qty (2) – Mounting Brackets

Qty (4) – Retainer Nuts , 3/8"-16

Qty (4) – Two-Piece Vibration Isolators

Qty (4) – 1-1/2” x 1/4” Fender Washers
(used when the unit is installed to the joists)
Figure 5.2
Model HHD Mounting Orientations
Horizontal Air Delivery,
Perpendicular to Joists
16" O.C. 16" O.C.
11.98
Speed Control
(Model Size 45 Only)
Horizontal Air Delivery,
Parallel to Joists
16" O.C.
11.98
Vertical Air Delivery,
Recessed Between 10” Joists
6.10
10" JOIST
16" O.C.
Vertical Air Delivery,
Recessed Between 12” Joists
4.17
12" JOIST
16" O.C.


For 10” or
12” Deep Joists





For 12” Deep
Joists