Packless Industries

ackless ice machine coils utilize a coaxial “tube-in-tube” design. Water flows through the inner tube while refrigerant flows in the annulus between the inner and outer tubes. The key to the high performance of Packless ice machine coils lies in the convoluted multi-lead inner tube manufactured in a patented process. The resulting convoluted tube has increased heat transfer surface area per unit length, yet still permits full flow of both water and refrigerant around its entire periphery for improved performance. Turbulence imparted by the convolutions to both the water and refrigerant flows further enhances the thermal performance, while inhibiting the accumulation of deposits on the surfaces. The net result is a highly effective, compact heat exchanger with superior anti-fouling characteristics. Optimum heat transfer with Packless ice machine coils is achieved with a counterflow arrangement of water and refrigerant during condensing.

Seven standard models are available ranging in capacity from 1 to 5 tons Standard models are coaxial tube-in-tube design with a convoluted inner tube of copper and an outer tube (shell) of steel or copper C-UL approved ISO 9001:2008 certified Working pressures: CHAX-3100-H thru CHAX-3400-H: Refrigerant side: 650 psig Water side: 400 psig CHAX-3500-J: Refrigerant side: 620 psig Water side: 400 psig Packless chiller and evaporator coils utilize a coaxial “tube-in-tube” design. Water flows through the inner tube while refrigerant flows in the annulus between the inner and outer tubes. The key to the high performance of Packless chiller and evaporator coils lies in the convoluted multi-lead inner tube manufactured in a patented process. The resulting convoluted tube has increased heat transfer surface area per unit length, yet still permits full flow of both water and refrigerant around its entire periphery for improved performance. Turbulence imparted by the convolutions to both the water and refrigerant flows further enhances the thermal performance, while inhibiting the accumulation of deposits on the surfaces. The net result is a highly effective, compact heat exchanger with superior anti-fouling characteristics.

7000 Series - High Efficiency Green Surface Coils Excellent for both Water-Source Heat Pump and Water-Cooled Condenser applications Highly effective convoluted inner tubes of copper or cupronickel Fifteen standard sizes for 12 through 30 ton systems Available in Helix, Spiral and Trombone Shapes C-UL approved ISO 9001:2008 certified

Packless vibration absorbers are designed for installation in the suction and discharge lines of air conditioning and refrigeration system to dampen the transmission of compressor-induced vibration through system piping. Packless vibration absorbers are constructed of deep pitch corrugated tubing in stainless steel for increased flexibility and vibration absorption, covered with high tensile stainless steel wire braid for superior strength. The vibration absorbers have female copper end connections for making sweat connections to refrigerant piping. Each absorber is pressure tested then carefully vacuum tested using a highly sensitive helium mass spectrometer leak detection device. Units are cleaned, dehydrated and sealed in plastic film after final inspection to maintain cleanliness and dryness prior to installation. These are available either in bulk or individually boxed. Packless Vibration Absorbers are compatible with all HFC, HCFC and CFC refrigerants. The stainless steel models, VAFS-3 through VAFS-11, are electrically welded with no braze joints to achieve the higher working pressures set by today’s industry standards. Packless vibration absorbers are recognized under the component programs of Underwriter’s Laboratories, Inc., c-UL-US, File #SA2575.

Eleven models available to fit copper tubing from 14 through 1 58 inches O.D. Each unit pressure and vacuum tested, cleaned, dehydrated and sealed in plastic film C-UL Approved Notes: Due to a continuous program of product improvement, specifications and dimensions are subject to change without notice. For unusual installations, Packless vibration absorbers can be provided in special lengths or with PVC coating to protect them from condensation and freezing. Please consult factory with requirements.

Mechanical subcooling involves cooling the liquid refrigerant of a low temperature system by evaporating the refrigerant of a high temperature system. Since high temperature systems are more efficient than low temperature ones, mechanical subcooling provides a net gain in overall efficiency. Packless chillers function well as subcoolers of either R-12. R-22 or R-502, and yield a low pressure drop for the subcooled liquid. Seven chiller models are available to offer a wide range of subcooler capacities.