Table of Contents
Advertisement
Operating Instructions
Heater Start-up:
1. Close the duct heater's door and ensure that the
latch has engaged by pulling on the door. The door
should not open unless a tool is used to disengage
the latch.
2. Turn on the blower or fan for the ductwork that con-
tains the duct heater.
3. Ensure that the Air Velocity on the downstream side
of the duct heater matches the Minimum Air Veloc-
ity stamped on the duct heater's nameplate. The
minimum airflow requirement shall be met at any
point over the face of the heater.
4. Turn Selector Handle on the duct heater to the
"ON" position. -Note: A small amount of smoke will
usually be emitted from the duct heater when first
initialized. This is from dust that has built up on the
elements and is normal and should only last for a
few seconds.
5. Verify that adequate heat is coming from ductwork
vents.
Maintenance
ELECTRIC SHOCK HAZARD.
power before installing or servicing heater.
Failure to do so could result in personal injury
or property damage. Heater must be installed
or serviced by a qualified person in accordance
with the National Electrical Code, NFPA 70.
Heater Bundle Removal
& Replacement
ELECTRIC SHOCK HAZARD. Disconnect all
power before installing or servicing heater.
Failure to do so could result in personal injury
or property damage. Heater must be installed
or serviced by a qualified person in accordance
with the National Electrical Code, NFPA 70.
ELECTRIC SHOCK HAZARD. Any installation
involving electric heaters must be performed
by a qualified person and must be effective-
ly grounded in accordance with the National
Electrical Code to eliminate shock hazard.
Heater Shut-Down:
1. With the blower or fan still running, turn the Selector
2. Verify that the air coming out of the ductwork vents
3. Do not turn off the blower or fan until at least 15
4. Verify that the duct heater outer surfaces have
5. Disconnect all power to the duct heater before
1. Periodically clean terminals and terminal covers of
Disconnect all
2. At least once a year check for loose terminal con-
1. If there is more than one bank of elements on the
11
handle on the duct heater to the "OFF" position.
is not heated.
minutes after the heater has turned off.
cooled down to at least 110°F before touching.
opening the duct heater's door.
dust and corrosion to maintain good electrical con-
nections and to permit rapid heat dissipation. Use
airblast, and be careful to avoid damage to mica
insulation.
nections. Tighten as necessary. Torque to 30 in-lbs.
heater, drill out rivets from the back side of the duct
heater that are holding the heating bank that is to
be replaced in place.
Advertisement
Table of Contents
