Trane HUV Installation Operation & Maintenance page 127

Sidewall Power Exhaust
The sidewall power exhaust is pro-
vided with a cabinet and an ex-
haust damper. The cabinet is
constructed of 16-gauge steel with
adjustable leveling legs at four
corners to match-up with the
classroom unit ventilator. A re-
movable front panel is secured by
three camlock fastener. The cabi-
net is coated with an appliance
grade powder paint finish in the
same selectable colors as the
classroom unit vent. The exhaust
unit provides nominal 500 (single
fan system) or 750 CFM (dual fan
system) with a 2-speed switch. All
motors are 115/60/1 voltage and
fan(s) are direct drive. See page
116 for dimensional data.
Gravity Relief Damper
The gravity relief damper is baro-
metrically operated. It contains
aluminum blades that are de-
signed to be used with the class-
room unit ventilator. The dampers
are typically located in a plenum or
behind shelving. Dampers can be
ordered with an optional wall box.
See page 117 for dimensional da-
ta.
UV-PRC001-EN
Accessories
ERS, SWE and Wall boxes
ERS-Energy Recovery System
The Trane energy recovery system allows up to 500 cfm of outside
air to be brought into the space without putting a large ventilation
load on the unit ventilator system. The unit may be controlled through
a TUC, ZN520 or a 24V binary signal. The cabinet is made of 16-gauge
galvanized steel with the same finish as the classroom unit ventilator.
The fans are of the double-inlet, forward-curved centrifugal variety.
They are equipped with a 3-speed switch for air balancing. The air-to-
air heat exchanger is constructed to allow two separate air streams in
a counter-flow direction. The matrix of this heat exchanger prevents
less than 1-percent of cross contamination between the airstreams.
Pipe Cover
The pipe cover assembly consists
of the pipe enclosure, mounting
strip, and pipe hangers. The enclo-
sure is constructed from 18-gauge
steel that is locked to the mounting
strip without visible fasteners. The
mounting strip is a continuous, roll
formed 20-gauge steel and con-
tains a full length channel for the
enclosure and pipe hangers. The
pipe hangers are .148-inch in di-
ameter, zinc-plated steel wire.
They are designed to support up to
two, 2 1/8-inch O.D. insulated
pipes. See page 120 for dimen-
sional
data.
Wall Boxes
The wall box accessory provides a
year-round outdoor air intake di-
rectly to the unit ventilator, side-
wall exhaust, or energy recovery
system through an exterior wall.
Wall boxes are constructed of
heavy gauge aluminum and de-
signed to last the life of the build-
ing. Internal parts are interlocked,
in addition to being held securely
in place by the frame-within-a-
frame design. This assures proper
louver alignment. The wall box
frame is formed by four extruded
aluminum channels. The corners
are secured by screws to provide
right angle corners. Louvers are
stacked vertically, and held in posi-
tion by an integral spacing guide.
The boxes are available with an
anodized aluminum finish, or a
baked enamel finish. The wall box
arrangements are furnished with a
diamond pattern expanded alumi-
num bird screen to eliminate trash
from blowing into the building.
The grilles are aluminum, and the
same finish as the frame.
127