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Chromalox
SERVICE REFERENCE
Installation Instructions
DIVISION 4 SECTION GEN
SALES
REFERENCE (Supersedes POO400-6) POO400-7
161-048339-001
DATE DECEMBER, 2006
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General Recommendations on the Use of Chromalox
Electric Heating Elements for Clamp-On,
Oven and Air Duct Heating
CHROMALOX ELECTRIC HEATING ELEMENTS FOR CLAMP-ON
The electric heating element(s) supplied herein are ruggedly The following units are generally used in these applications:
constructed
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CHROMALOX ELECTRIC HEATING ELEMENTS FOR CLAMP-ON (cont’d) WIRING 1. Electric wiring to heating elements must be installed in accor- dance with National Electrical Code or local electrical codes by a qualified person. ELECTRIC SHOCK HAZARD. Any installation 2. Temperatures at heater terminals may require use of involving electric heaters must be performed by a high-temperature wire. Check factory for recommendations. qualified person and must be effectively grounded 3. Maximum torque on strip hea
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CHROMALOX ELECTRIC HEATING ELEMENTS FOR OVEN HEATING – AIR DUCTS The electric heating element(s) supplied herein are ruggedly con- structed and if properly installed, operated and maintained, are designed for long life and dependable, trouble-free service. GENERAL Temperature regulating and temperature limiting controls are recommended to be used with electric heaters to control the heating process and safeguard the electric heaters from excessive tempera- FIRE HAZARD. Since heaters are capable
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CHROMALOX ELECTRIC HEATING ELEMENTS FOR OVEN HEATING – AIR DUCTS (cont’d) GENERAL INFORMATION 1. Strips of equal wattage and voltage can be series connected for 3. Do not bend or form strips. a maximum of 480 volts. If a higher voltage (600 volt max.) is 4. Use manganese nickel wire or alloy bus bar for making electri- necessary use the same series connections and use secondary cal connections where temperatures are above 350˚F. Insulated insulation bushings. copper wire may be used in the coole
