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DIVISION
4
SECTION
GEN
SALES
REFERENCE
DATE
SERVICE REFERENCE
Installation Instructions
POO401-9
161-053241-001
DECEMBER, 2008
(Supersedes POO401-8)
Chromalox
®
© 2010 Chromalox, Inc.
General Recommendations
on the Use of Electric Heating Elements
Safety Guidelines
The safety and performance of this heater is dependent upon prop-
er handling, installation, control and maintenance. Since we cannot
anticipate all conditions under which this information and heater, or
this heater in combination with other manufacturer’s products may be
used, it is advised that you conduct your own tests to determine the
safety and suitability of this heater in combination with other products
in your application.
The Safety Alert Symbol: is found throughout these installa-
tion instructions to identify potential hazards that can result in person-
al injury. The seriousness of the potential risk is identified by one of
these three words:
– will result in serious injury or death.
– could result in serious injury or death.
– may result in minor or moderate injury.
Read and follow these instructions to minimize risks of electric
shock or fire. Save these instructions for future reference.
The electric heating element(s) supplied herein are of rugged con-
struction and if properly installed, operated and maintained, are
designed for long life and dependable, trouble-free service.
The system designer is responsible for the safety
of this equipment and should install adequate
back-up controls and safety devices with their
electric heating equipment. Where the conse-
quences of failure could result in personal injury or
property damage, back-up controls are essential.
GENERAL
INSTALLATION
!
!
DANGER
ELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing heater. Failure to do
so could result in personal injury or property dam-
age. Heater must be installed by a qualified person
in accordance with the National Electrical Code,
NFPA 70.
ELECTRIC SHOCK HAZARD. Any installation involv-
ing electric heaters must be performed by a quali-
fied person and must be effectively grounded in
accordance with the National Electrical Code to
eliminate shock hazard.
FIRE/EXPLOSION HAZARD
.
Since electric heaters are capa-
ble of developing high temperatures, extreme care should be
taken to:
A. Avoid mounting heaters in an environment containing
combustible liquids, gases or vapors.
B. Avoid contact between heaters and combustible materials.
C. Keep combustible materials far enough away to be free of
the effects of high temperatures.
Failure to comply could result in personal injury or property
damage.
High heating efficiency, low sheath temperatures, and long heater
life result when electric heaters are properly installed.
1. Heater mounting must allow for heater expansion without sacri-
ficing heat transfer efficiency.
2. Electric heaters should not be bent or deformed because heater
insulation can be damaged, leading to electrical problems and a
short heater life.
3. Clamp-on heaters should be securely clamped to clean, smooth,
metal surfaces. No insulation should contact sheath.
4. Cartridge heaters, when inserted, should be provided with snug fit-
ting holes. Use heat transfer and release compound as required.