Nortec SETC Outdoor - Manual (Page 14)

11 | Installation
Table 4: SETC Roof Curb Depth (Dimension A)
Model A (Inside Curb Depth)
In (cm)
100 8.6 (28 cm)
175 8.6 (28 cm)
250 15 (38 cm)
375 15 (38 cm)
525 30.6 (78 cm)
750 30.6 (78 cm)
1050 46.3 (118 cm)
Installing on the Curb
 If desired sealing material such as caulking or a gasket can be laid on the top of the curb
prior to lifting the SETC into place.
 Use the removable lugs installed in the base of the humidifier to lift it into place. Ensure
that the cable/chain/straps used for lifting do not come into contact with and damage the
cabinet. The inside skirt of the base must fit inside the roof curb.
 To secure the SETC in place remove the four lifting lugs and insert shims or blocks to fill any
gap between the outside skirt of the base and the curb. Drive screws through the four holes
to secure the unit to the curb.
 If the building is positively or negatively pressured the pipe chase opening or the roof curb
opening should be closed around the piping to prevent the building drawing cold air in or
exhausting warm air out through the SETC cabinet.
Figure 7: Installing on the Curb
Cross section of curb and cabinet base from right side
Inside Skirt
Outside Skirt
Pipe Chase
Insert wood
block
Screw to
Curb
Remove lifting
lugs
Roof Curb
Cabinet Base