Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety
information. Failure to comply with instructions could result in personal injury and/or property damage!
1
Electric Duct Heaters
These instructions apply to installation of duct heaters for zero clearance installation in ducts. They are approved
for use with heat pumps, air conditioners, or other forced air systems and may be controlled by contactors, relays,
sequencers, or solid state devices.
The duct heaters are pre-wired, have voltage ratings of 600 volts, both single phase and three phase. The duct
heaters are furnished with integral controls.
Receiving and Handling
Upon receiving dampers, check for both obvious
and hidden damage. If damage is found, record all
necessary information on the bill of lading and file
a claim with the final carrier. Check to be sure that
all parts of the shipment, including accessories, are
accounted for.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is
highly recommended. Do not store at temperatures in
excess of 100°F (38°C).
This manual is the property of the owner and is required for future maintenance. Please leave it with the owner when
the jobs is complete.
Safety Warning
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, injury
or death. Read the installation, operating, and
maintenance instructions thoroughly before installing
or servicing this equipment.
Table of Contents
General Information ......................................2
Installation ....................................................2
Electrical Requirements .................................3
Minimum Air Velocities ..................................3
Insulated Duct Installations ..........................4
Installation Details with SSR or Electronic
Step Controllers ..........................................5
Troubleshooting Guide ...............................6-8
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Document Number 478052
IDHB & IDHC
Duct Heaters
