Receiving
The HA/HAB ventilator is shipped in two parts:
1. Fan housing assembly complete with fiberglass inlet
venturi to the wheel and complete motor and drive
assembly.
2. Flanged extruded aluminum louver assembly.
Duct adapter and companion angles are shipped loose
if unit is for inline application.
Inspect cartons or crates carefully before signing a
delivery receipt for the carrier. If any damage is
apparent, note it on the carrier’s receipt so that a claim
can be filed against the carrier through your usual
channels.
Handle the units carefully while delivering to installation
location. Use ordinary care in unpacking the units. If the
units, when unpacked, appear to be damaged in a way
that could not be determined at the time of delivery,
notify the carrier that concealed damage has been
discovered and insist on inspection by the carrier. Obtain
a copy of carrier’s inspection report showing the
concealed damages so that a claim can be filed through
your usual channels.
Study the attached installation prints carefully. Inspect
the units carefully for identification marks, fan rotation
symbols, etc.
©1997 – 2018 Twin City Fan Companies, Ltd.
Installation
Wall Application
1. Remove wood shipping supports from fan assembly
(see Figure 1).
2. Locate and provide hole in the wall
1
⁄
2
" larger than
the fan housing (see Figure 2). This will provide an
opening for the electrical wiring into the unit.
3. Anchor the box in the wall, keeping a minimum of
2
3
⁄
8
" between the outside wall and any part of the
box or the power assembly.
4. Fasten the flanged extruded louver to the exterior
wall.
Inline Application
1. Remove wood shipping supports from fan assembly
(see Figure 1).
2. Attach duct adapter and companion angles to unit
per Figure 3 with fasteners supplied.
3. Before anchoring the unit to the ductwork, check line
voltage and current characteristics outlined in previous
section.
4. Fasten the flanged extruded louver to the exterior wall
wherever the outlet of the ductwork ends.
For easy maintenance of the ventilator inline, provide a
drop-out section between ductwork and duct adapter
(see Figure 3).
IM-3100
August 2015
HA/HAB Fiberglass
Wall Mount Ventilators
INSTALLATION, OPERATION & MAINTENANCE MANUAL
Throughout this manual, there are a number of HAZARD WARNINGS that must be read and adhered to in order
to prevent possible personal injury and/or damage to equipment. Two signal words "WARNING" and "CAUTION"
are used to indicate the severity of a hazard and are preceded by the safety alert symbol.
WARNING
Used when serious injury or death MAY result from misuse or failure to follow specific instructions.
CAUTION
Used when minor or moderate injury or product / equipment damage MAY result from misuse or failure to follow
specific instructions.
It is the responsibility of all personnel involved in installation, operation and maintenance to fully understand the
Warning and
Caution procedures by which hazards are to be avoided.
