Description

Watlow LDH160SX5S Duct Heaters Medium Temperature Air 750°F (399°C)

Watlow LDH160SX5S Duct Heaters Datasheet (PDF)

Duct Heaters Selection Sheet (PDF)

Watlow duct heaters are constructed of sturdy 0.430 in. (11 mm) diameter WATROD heating elements mounted to a 1⁄4 in. (6 mm) thick steel flange. These air duct heaters are easily adapted to many non-pressurized air-heating systems.

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Duct heaters are easily installed in applications requiring a wide range of temperature versus air flow combinations.

The modular duct heater offers increased reliability. The individual modules are removable through the housing of the assembly, which eliminates the need to pull the complete heater from the duct work. This reduces downtime costs because the heating elements can be replaced individually. Performance improvements include quicker response time and reduced infiltration from the air stream being heated into the electrical enclosure.

Watlow® duct heaters offer advantages over gas or oil fired and open coil electric units with:

• Installation flexibility—no flues or fuel lines
• 100% energy efficient—no energy loss up the flue
• Universal availability of electricity
• Resistance coil in sheath is protected from corrosive environments

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Easily Adapted to Many Non-Pressurized Air Heating Systems 750°C (399°C)

• Welded Alloy 840 WATROD elements
• Without thermostat
• General purpose enclosure
• Steel flange

3 and 6 element have (1) 1 inch NPT conduit opening; 9, 12 and 15 element heaters have (2) 1 inch NPT conduit openings; 18 element heaters have (2) 1 1/2 inch NPT conduit openings; 21 element (B=20 1/4in.) heaters have (2) 1 1/2 inch NPT conduit openings; remaining 21 and 24 element heaters have (3) 1 1/2 inch NPT conduit openings.  All flanges are 12 inches wide.

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Medium Temperature Air 750 °F (399°C)

Duct heaters are easily installed in applications requiring a wide range of temperature versus air flow combinations. The modular duct heater offers increased reliability. The individual modules are removable through the housing of the assembly, which eliminates the need to pull the complete heater from the ductwork. This reduces downtime costs because the heating elements can be replaced individually.

Performance improvements include quicker response time and reduced infiltration from the air stream being heated into the electrical enclosure. Watlow air duct heaters offer advantages over gas or oil fired and open coil electric units with: -Installation flexibility—no flues or fuel lines -100 percent energy efficient—no energy loss up the flue -Universal availability of electricity -Resistance coil in sheath is protected from corrosive environments -Duct heaters with general purpose enclosures meet UL® and CSA component recognition to 480 and 600VAC maximum respectively—UL® and CSA file numbers are E52951 and 31388.

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