Chromalox PB402-4 - Manual (Page 2)

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Litho in U.S.A.
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493 www.chromalox.com
WIRING
WARNING: Hazard of Electrical Shock. Any instal-
lation involving electric heaters must be effective-
ly grounded in accordance with the National
Electrical Code to eliminate shock hazard. 1. Electric wiring to heating elements must be installed in accor-
dance with National Electrical Code and local codes by a
qualified person. Use copper conductors only.
2. Protection with properly sized fuses/breakers is important to
minimize hazards.
OPERATION
1. Do not operate heaters at voltages in excess of that stamped
on the heater since excess voltage will shorten heater life.
2. Do not operate under conditions that result in temperatures
higher than the recommended maximum, since excess temper-
atures can cause premature heater failure.
The maximum recommended temperature on sheath materials
normally supplied is:
Stainless Steel — 1200˚F
Alloy — 1600˚F
3. Electrical terminals should be protected from spillage of plas-
tics, water, oil and their vapors which can create electrical
hazards and/or heater failure.
4. Do not energize heater in free air or at more than rated voltage.
5. Stud heaters are generally used in large banks to allow uni-
form tightening of mating parts. All heaters of one group
should be energized simultaneously.
MAINTENANCE
WARNING: Hazard of Severe Shock. Disconnect all
power to heaters before servicing or replacing
heaters.
1. Make certain that both the terminals and heater sheath are free
from contact with oil, liquids or other foreign matter.
NOTE: Chromalox cannot be responsible for failures or damage
caused by organic contamination in stud heaters. Make certain
that the heaters are not exposed to organic contaminants.
2. Check electrical connections at heater terminals and tighten if
necessary. This will help avoid hot terminals that may destroy
wire insulation or heater terminals.
3. Check overheat operation to insure heater protection.
4. REPAIR — For In-Warranty repair, please follow instructions
in warranty below.
WARNING: Out-of-Warranty repairs should only be
attempted by qualified personnel.
INSTALLATION
WARNING: Never hammer the heater ends.
3. DANGER: Hazard of Fire. Since these heaters are capable of
developing high temperatures, extreme care should be taken to:
a. Avoid mounting heaters in an atmosphere containing com-
bustible gases and 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.
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
http://www.chromalox.com/customer-service/policies/termsofsale.aspx.