4520-01-200-0679 HEATER,SPACE,ELECTRIC Index 4520-01-200-0681 HEATER,DUCT TYPE,STATIONARY

National Stock Number:
4520-01-200-0680

Federal Supply Class:
4520

National Item Identification Number:
012000680

Description:
HEATER,DUCT TYPE,STATIONARY

Detail:
A DEVICE CAPABLE OF PRODUCING HEAT FROM GAS, LIQUID FUEL, OR AN ELECTRICAL HEATING ELEMENT DESIGNED FOR PERMANENT INSTALLATION IN SHEET METAL DUCTS OF A FORCED AIR CIRCULATING SYSTEM. IT CONSISTS OF (1) A FINNED, STEEL BURNER TUBE, A COMBUSTION AIR BLOWER, A CONTROL PANEL, AND A CONSTANT LEVEL FUEL SUPPLY SYSTEM OR (2) A DEVICE HAVING A HEATING ELEMENT WHICH WHEN CONNECTED TO AN ELECTRICAL SOURCE, DIRECTLY IMPARTS HEAT. IT MAY BE PROVIDED WITH A FLANGED OUTER CASING TO FACILITATE MOUNTING IN PLANNED OR EXISTING DUCT WORK. CIRCULATION OF THE HEATED AIR IS ACHIEVED BY USE OF A BLOWER OR FAN NOT INTEGRAL WITH THE HEATING UNIT.


Manufacturer Information:
106-056816-00065586CHROMALOX INC
106-056816-02565586CHROMALOX INC
210-18958-4174924INDEECO LLC
EH28L17032VALAD ELECTRIC HEATING CORP.
M22594-28L81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-H-2259481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-PRF-2259481349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
TFZ-28L74924INDEECO LLC
TFZ2BL74924INDEECO LLC


Techincal Specification:
CURRENT RATING IN AMPS21.0
CURRENT TYPEAC
DEPTH8.000 INCHES NOMINAL
FREQUENCY IN HERTZ60.0
HEAT MEDIUM TYPEAIR
HEATING ELEMENT TYPEELECTRIC NONIMMERSION
HEAT DELIVERY RATE31595.1 BRITISH THERMAL UNIT
HEIGHT12.250 INCHES NOMINAL
INCLOSURE MATERIALSTEEL OR STEEL CORROSION RESISTING
MOUNTING TYPEVENTILATION DUCT
NONDEFINITIVE SPEC/STD DATAL SIZE AND 28EH TYPE
PHASETHREE
SPECIAL FEATURESMAGNETIC
SPECIFICATION/STANDARD DATA81349-MIL-PRF-22594 GOVERNMENT SPECIFICATION
WIDTH38.000 INCHES NOMINAL
SURFACE TREATMENTZINC
VOLTAGE IN VOLTS440.0


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