Advanced Radiant Systems DU 120V 70ft 165,000-220,000 BTU Two Stage Unitary Infrared Heater S70-220MBH/165MBH

Description

Advanced Radiant Systems’ Two Stage Unitary Range (DU) offers the efficiency benefits of two-stage heating at an economical cost. These units also minimize temperature swings and help avoid system cycling therefore optimizing fuel consumption.

The Model DU is a heavy duty industrial/commercial two stage infrared heater with a totally enclosed burner cabinet.

The DU Range gives the system designer the flexibility to meet the changing demands in a given area. Uniform heating and low up-front cost make the Two Stage Unitary Range one of Advanced Radiant Systems’ most popular models.

Features

• Separated controls compartment
• Self-diagnostic ignition module
• Parabolic polished aluminum reflectors
• Heavy duty couplings
• Totally enclosed burner cabinet
• Direct spark ignition
• 24V direct wire for thermostat
• Jet stream burner
• Vented or unvented

Standard Equipment

• Totally enclosed burner housing assembly
• Aluminized combustion tube with gasket
• Combustion air inlet collar
• Turbulators when required
• All tubes, reflectors, couplings, end caps, and hanging accessories per specified length

Included Accessories

• Polished Aluminum Reflectors
• Chain Sets
• Ball Valve
• Flex Connectors
• Vent Adapter
• Thermostat

Specifications

• High Fire Rate (BTU/HR): 220,000
• Low Fire Rate (BTU/HR): 165,000
• Heat Exchanger Length: 70 ft
• Reflector Configurations
  • Minimum Clearance to Combustibles
    • Horizontal
      • Top: 6”
      • Side 1: 46”
      • Side 2: 46”
      • Below: 83”
    • 45° Reflector Tilt
      • Top: 8”
      • Side 1: 4”
      • Side 2: 77”
      • Below: 81”
    • One Side Extension
      • Top: 6”
      • Side 1: 6”
      • Side 2: 58”
      • Below: 84”
    • Two Side Extension
      • Top: 6”
      • Side 1: 31”
      • Side 2: 31”
      • Below: 88”
    • U-Bend, Horizontal
      • Top: 6”
      • Side 1: 46”
      • Side 2: 46”
      • Below: 88”
    • U-Bend, Opposite 45°
      • Top: 10”
      • Side 1: 74”
      • Side 2: 32”
      • Below: 81”
• Unvented Flue
  • Above: 18”
  • End: 32”
• Vented Flue End: 18”
• Gas Supply
  • Inlet Pressure
    • Natural Gas
      • Minimum: 5.0” W.C.
      • Maximum: 14.0” W.C.
    • Propane
      • Minimum: 11.5” W.C.
      • Maximum: 14.0” W.C.
  • Manifold Pressure
    • Natural Gas
      • High Rate: 3.5” W.C.
      • Low Rate: 2.4” W.C.
    • Propane Gas
      • High Rate: 10.5” W.C.
      • Low Rate: 6.2” W.C.
  • Inlet Connection
    • Natural Gas or Propane Gas: 1/2” NPT
• Electric Supply: 120 V AC, 60 HZ, 1 Amp: 36” cord, grounded 3 prong plug
• Flue and Outside Air Connection: 4” O.D. connection for flue adapter provided at the heater
• Weight: 334 lbs.
• Dimensions (L x W x H): 840” x 24” x 40”

Options

• PTU-100-1 – U-Bend Kit
• BEK-4-ARS – 90° Elbow Kit
• SS Cabinet – Stainless Steel Burner Upgrade
• OA-064 – Outside Air Adapter Kits