Catalogue

UNT-PRC001-EN 81
Mechanical Specifications
Wall boxes have a clear anodized finish and include a single core wire mesh insect screen. The
frame is 10-gage extruded aluminum alloy 6063-T5 construction. Horizontal louvers have 16-gage
extruded aluminum alloy 6063-T5 construction.
Wall boxes ship separate for field installation. A field supplied duct or sleeve from the wall box to
the unit fresh air opening is required to provide fresh air. Wall boxes are sized to handle up to
100 percent of nominal air flow.
Projection Panels
Projection panels allow semi-recessing of vertical recessed units.
Panels are 16-gage steel construction, painted with a baked powder finish. They are available in
projection depths ranging from 2”–6” in 1/2” increments. There is a distance of 7/8” between the
projection panel and the front of the unit.
Piping Components
Ball Valve
Figure 33. Projection panel
Figure 34. Ball valve
Part Material Spec ASTM
Lever Steel, zinc plated
Seat
Tef lo n
VTFE
Packing
Tef lo n
RTFE
Stem Rod Brass B16
G-Nut Hex Brass B16
Ball
Brass, chrome plated
B16
Retainer Brass B16
Body Cast Brass B584-C84400
Working Pressure
400 psi
Options
UNT-PRC001-EN.book Page 81 Tuesday, May 8, 2012 10:54 AM