Nortec MH Series - Manual (Page 17)

Installation | 14
Location – MHTC Reflow Hydraulic Unit
The MHTC Reflow Hydraulic Unit should be located adjacent to the duct or air handler
containing the MH Duct Module. The Hydraulic Unit is designed to be floor mounted but can be
installed on a stand or raised surface.
 Install the hydraulic unit as close as possible to the MH Duct Unit to minimize length of drain
and spray bar lines.
 Ensure spray bar lines are no longer than 15 ft. vertically (equivalent length per spray bar).
below the top of the duct module.
 Ensure the Hydraulic Unit is installed on a level surface.
 Install providing access for removal of cover and servicing of unit.
Figure 12: Installation Location / Clearance
Note:.
A P-Trap equal to duct static pressure plus 2 inches must be installed on the drain pan
overflow. Ensure sufficient space is available. Use a stand to raise the drain pan in the
duct if necessary.
Note:
The Duct Unit requires regular maintenance including replacement of media boxes. Ensure
access and sufficient space is provided downstream of the unit to remove and install new
media boxes.
2 in.
(5 cm)
10 in.
(25 cm)
As close as
possible to
spray bars.
5-95%
24 in. (60 cm) Min.
top clearance
Can be placed
as close to duct
as possible
leaving room for
inlet water, drain
and spray bar
connections.
Floor mount to ensure duct module drain pan to hydraulic
unit connection and the drain line can be adequately sloped.
Min. front
clearance
Min. side
clearance
2 in.
(5 cm)
Min. side
clearance
Mount
Hydraulic Unit Level
Drain below drain pan outlet.