Aerovent IM-155 - Manual

©2000 Aerovent
Two-Way and Three-Way Heat Saver/Ventilator
ROOF
AIRFLOW AIRFLOW
DAMPER
MOTOR
DISCHARGE
SENSOR
1 1 / 4 "
Clearance
TEMPERED
AIR – WINTER
EXHAUST EXHAUST SUPPLY
FAN SECTION CURB
BASE
SECTION
Discharge Sensor Mounting
The discharge sensor is mounted on the bottom edge of the
unit so as to protrude into the tempered airstream. The tem-
perature reading is taken at the bottom of the unit, not at the
floor level. The temperature selector is located in the remote
control station.
Heat saver ventilators are designed to recirculate warm air
from the ceiling to the work area or to exhaust air to the out-
side. Three-way heat savers (RREH) can also draw fresh air in
from the outside and blow it down into the work area.
Modulating dampers in the unit temper the air to the desired
temperature setting.
Heat saver ventilators are designed to be installed through
a prefab or an existing roof curb and rest on the unit’s curb
base section. Mount the curb base section onto the roof curb
and secure the stack cap (RRES) or hooded inlet (RREH) to
the fan section. Extensions of the fan section are available to
provide clearance of roof and structural members.
Note: The fan must be allowed to stop before the motor
rotation is reversed. Do not switch any unit from exhaust to
recirculate or supply without allowing the fan blades to stop
rotating.
Suggested Mounting
of Three-Way Heat Saver
General Installation, Operation and Maintenance Instructions For Aerovent Products
IM-155
June 1997
®