BTU Submittal Data

BTU Electric Heaters

S U B M I T T A L D A T A

BTU Duct Heaters are insert type, U.L./A.R.L. Listed, suitable for Zero Clearance Installations to 100 KW in either vertical or horizontal duct systems and may be used with Heat Pumps, Cooling Units or any Forced Air System. Contactors and protective devices are included. Automatic reset thermal limit switches are used as primary protective devices. Manually resettable devices are in the power circuits as back-up protection. 24V to 277V Control Circuits are available. Control panels and shrouds are of heavy galvanized steel. Open wound helically coiled nickel/ chrome alloy elements are set in frames of sturdy galvanized steel with rugged steatite insulators and stainless steel terminations. Hinges and automatic latches are on all control box covers.

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MOUNTED UL/ARL LISTED OPTIONS AVAILABLE WITH BTU DUCT HEATERS
1. Air Pressure Switch 1A. Fan Interlock Relay (w/ Air Switch) 2. Circuit Fusing - 48 Amps or less 3. Control Panel Insulation 4. Sequencing (straight or staged) 5. Sequencing with instant shut-down 6. Stainless Hardware (now standard) 7. Transformers - step down to 24V	7A. Transformers - step-down to 120V 8. 80/20 Nickel Chrome Wire 9. Quiet Contactors 10. Delay Relay between Stages 11. Control Voltages - 120V to 277V 12. PE (Pneumatic Electric) Switches 13. Mercury Contactors (silent) 14. Low Watt Density Elements	15. Flanged Construction 16. Pilot Relays 17. Disconnect Switches (cover interlocking type) 18. SCR Control 19. Step Controller 20. __________ Thermostat 21.___________

DIMENSIONS IN INCHES

Item
No.

Quan-
tity

Model
Number

Total
KW

Electrical
Rating

Total
Amps

Amps
Circ.
#1

Amps
Circ.
#2

S
T
A
G
E
S

KW per
Stage

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