22
Installation
2582302_C_EN_1611
Nortec EL
5.4.4 Mounting to OSHPD Seismic Requirements
The Nortec EL is certified to OSHPD seismic requirements in its standard configuration (reference OSP-
0225-10); no additional kits are required. The humidifier must be mounted as per the instructions in this
section in order to fulfill the seismic requirements.
Locate the Nortec EL humidifier according to
"Location and Clearances" on page 16
, and secure it to double-
layered 3/4 in (20 mm) thick plywood (or equivalent) as follows:
1. Secure the double-layered 3/4 in (20 mm) plywood sheets to the selected mounting surface.
2. Mark the attachment points “A” and "B" at the desired position on the plywood sheets (or equivalent)
with the help of a level. For small or medium housing refer to
Figure 11
. For large housing refer to
Figure 12 on page 23
.
3. Install 3/8×2 in grade B5 (or equivalent) lag bolts and flat washers (supplied by others) at attachment
points "A". Allow the heads of the screws to extend 0.25 in (5 mm) from the mounting surface so that
the humidifier can be installed on the bolts.
Figure 11:
A
A
B
B
X
Y
2
3
1
Optional Seismic Mounting, Small or Medium Housing
1 Lag bolt, 3/8×2 in, grade B5 (×4)
2 Flat washer (×4)
3 3/4 in (20 mm) double-layer plywood sheet (or equivalent)
Dimension
Housing Size
Small
Medium
X
12.0 in
(305 mm)
16.0 in
(406 mm)
Y
17.56 in
(446 mm)
20.71 in
(526 mm)