Open coil Portable HVAC Unit heater PTAC Packaged Through Heater

As the world's largest manufacturer of open coil heating elements, Tutco has gained a reputation for producing products that are second to none. We design and build each product to perform with incredible reliability.

Applications:

• PTAC: Air Conditioning
• Unitary: Room Air Conditioning/Heating Units & Fan Heating Coil

Specifications

• Technology leader NXT Wire, High Quality Nickel/Chromium resistance wire

• Wire Grades C (60%Ni 15%Cr 25%Fe), A (80%Ni 20%Cr)

• Available Gauges 14 - 28

• Coil Diameters .250 to .875

• Consistent Pitch Windings (Distance between Helixes)

• Solutions provided to best fit design objectives utilizing various coil return configurations (Large Diameter Coils Only)

• Voltage from 110V-240V, 1KW to 5KW for HVAC industrial

Insulation Specifications

• Patented Point Suspension or Traditional Cylindrical Bushings
• Manufactured to the industry's tightest current leakage specifications
• Point Suspension Offers:
  • Full Coil Exposure to the Airflow, Allows Utilization of Large Diameter Coils
  • Greater Stretch Ratios, Positive Coil Locking
  • Minimal Insulator Abrasion

Connection Specifications

Two proven methods of heating element terminations at Tutco insure a sturdy and electrically sound connection. The methods are compatible with ring, slotted and female terminals.

1. The resistance wire is mechanically staked and heli-arc welded to an appropriately sized slotted-head machine screw. It is then mounted with anti-rotational insulators to prevent movement during installations and operation.

2. The resistance wire is mechanically crimped to a 1/4" of 5/16" spade terminal which is then mounted in either a single or double ceramic insulator block. Pioneered by Tutco in the early 1980's, it has proven both reliable and cost effective for applications of 25 amps or less.