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Boulton Trading Corporation > Products > Packless > Packless Manifold spiral condensers & WSHP coil [green surface model]

Packless Manifold spiral condensers & WSHP coil [green surface model]

Key Advantage: High Efficiency

The primary feature of the Green Surface models is the enhanced heat transfer surface on the inner tube, resulting in:

  • Improved Thermal Performance: Higher EER/COP ratings for the associated WSHP or cooling system.

  • Energy Savings: Reduced energy consumption due to the increased efficiency of heat exchange.

  • Compactness: The high efficiency may allow for a smaller physical unit to handle the same tonnage compared to other models.

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Description

Green Surface Model: Core Technical Data

The Green Surface models maintain the robust high-capacity design of the Classic coils while integrating an advanced inner tube surface treatment for greater efficiency.

1. Design & Core Technology

Specification Detail
Design Type Manifolded Spiral Coaxial (Tube-in-Tube).
Key Difference High Efficiency Green Surface Technology: Refers to a patented enhancement of the convoluted multi-lead inner tube’s heat transfer surface, specifically engineered to boost thermal performance.
Fluid Flow Counterflow is utilized for optimal Delta T (temperature difference). Water/Brine flows inside the inner tube, and Refrigerant flows in the annular space.
Inner Tube Patented Convoluted Multi-Lead Inner Tube: Creates intense turbulence in both fluid flows, significantly increasing the heat transfer coefficient U and surface area per unit length.
Anti-Fouling The turbulent flow action actively inhibits the accumulation of scale and sediment on the water-side surfaces, maintaining high efficiency over the lifespan of the coil.
Outer Shell Material Carbon Steel (Standard).
Inner Tube Material Copper COAX or 90/10 Cupronickel COCX for corrosion resistance.

2. Pressure & Certification Ratings

The maximum working pressures are high to accommodate modern refrigerant systems:

Rating Value
Max. Refrigerant Working Pressure 650 psig (4482 kPa)
Max. Water Working Pressure 500 psig (3447 kPa)
Compatibility Compatible with all common CFC, HCFC, HFC, and HFO refrigerants.
Certification C-UL-US Listed (Certified by UL and CSA).

 

Additional information

Available High Efficiency Green Surface Models

MODEL CAPACITY LENGTH WIDTH HEIGHT
COAX-7800-S 8 tons 21 in 11 1⁄4 in 17 1⁄2 in
COCX-7800-S 8 tons 21 in 11 1⁄4 in 17 1⁄2 in
COAX-7010-S 10 tons 21 9⁄16 in 11 1⁄4 in 17 3⁄8 in
COCX-7010-S 10 tons 21 9⁄16 in 11 1⁄4 in 17 3⁄8 in
COAX-7012-S 12 tons 22 5⁄16 in 11 1⁄4 in 18 3⁄4 in
COCX-7012-S 12 tons 22 5⁄16 in 11 1⁄4 in 18 3⁄4 in
COAX-7015-S 15 tons 24 7⁄16 in 11 7⁄8 in 21 3⁄8 in
COCX-7015-S 15 tons 24 7⁄16 in 11 7⁄8 in 21 3⁄8 in
COAX-7020-S 20 tons 22 1⁄16 in 18 3⁄4 in 17 7⁄8 in
COCX-7020-S 20 tons 22 1⁄16 in 18 3⁄4 in 17 7⁄8 in
COAX-7025-S 25 tons 22 13⁄16 in 18 3⁄4 in 19 1⁄4 in
COCX-7025-S 25 tons 22 13⁄16 in 18 3⁄4 in 19 1⁄4 in
COAX-7030-S 30 tons 25 1⁄16 in 20 1⁄8 in 21 7⁄8 in
COCX-7030-S 30 tons 25 1⁄16 in 20 1⁄8 in 21 7⁄8 in
COAX-7540-S 40 tons 25 1⁄16 in 34 7⁄8 in 18 9⁄16 in
COAX-7550-S 50 tons 23 9⁄16 in 34 7⁄8 in 20 in
COAX-7560-S 60 tons 25 5⁄8 in 37 5⁄8 in 22 9⁄16 in
OVERVIEW

The Packless Green Surface Model (COAX/COCX-7000) is the high-efficiency coaxial heat exchanger (10–60 tons) known for its patented Green Surface inner tube which ensures superior heat transfer and anti-fouling resistance. It is a robust unit, rated for 650 psig refrigerant pressure, offering high EER/COP potential for WSHP and refrigeration applications in both copper and cupronickel.

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