Transcription of RECOMMENDED SPECIFICATIONS | Electric Duct Heaters
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RECOMMENDED SPECIFICATIONS | Electric Duct Heaters
SECTION B-229 RECOMMENDED SPECIFICATIONS | Electric duct HeatersRECOMMENDED SPECIFICATIONSP rovide open coil Electric duct Heaters of the size, capacity and performance shown on the job schedule. All duct Heaters shall be tested and certified to UL STD 1996 UL File number E245517. Heating elements shall be open coil type, 80% nickel 20% chromium, type A resistance wire. Other alloys are not acceptable. coils shall be supported by ste-atite ceramic bushings securely fastened to the element support brackets. The duct heater frame, control enclosure and element support brackets shall be of 20 gauge (minimum) galvanized steel.
FEATURES & CONSTRUCTION | Electronic Duct Heaters Electric Coils B-230 www.carnes.com PRODUCT FEATURES AND CONSTRUCTION AIR FLOW CUT-OFF SWITCH Standard on all heaters.
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