Owner's Manual
233 Series
Electric Forced Air Heater for Hazardous Locations
This manual covers installation, maintenance and repair parts.
FM and CSA Approved for the following classified areas:
Class I, Divisions 1 & 2, Groups C & D
Class II, Divisions 1 & 2, Groups F & G
Operating Temperature Code T3C - 320°F (160°C)
Class I, Zones 1 & 2, Group IIB, T3 (FMUS & CSAUS only)
or
Class I, Divisions 1 & 2, Groups C & D
Class II, Divisions 1 & 2, Groups E, F & G
Operating Temperature Code T3C - 320ºF (160ºC)
Class I, Zones 1 & 2, Group IIB T3 (FMUS & CSAUS only)
See Data Plate for Specific Area Classification
For details on the particular hazardous environments having the potential for explosion, refer to Articles 500 through 516 of the
National Electric Code, and/or Section 18 of the Canadian Electric Code, Part I.
HX23-2199-83-1EF
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