High Quality Copeland ZB38KQE ZB45KQE ZB48KQE-TFD ZB58KQE ZB38KQ / ZB45KQ / ZB58KQ air Conditioner

I. Positioning

The Medium-Capacity Group is Copeland's ZB series product line of scroll compressors designed for 4–8 HP medium-high temperature refrigeration applications. Covering four capacity grades—ZB38, ZB45, ZB48, and ZB58—it offers dual oil options: KQ (mineral oil/R22) and KQE (POE ester oil/R404A/R507/R134a). This group features high energy efficiency ratio, strong liquid slugging resistance, and full coverage of the medium power range as its core characteristics, making it the primary power choice for medium cold storage, food retail display cabinets, vegetable fresh-keeping storage, industrial ice machines, and other equipment.

II. Full Series Parameter Comparison Table

• ZB48KQE-TFD-558: Displacement 107.8 cc/rev, nominal 7 HP, oil charge 1.8 L, net weight 40 kg. Compatible with R134a/R404A/R507 refrigerants.

  
  

• ZB45KQE-TFD: Displacement 17.2 m³/h, oil charge 1.89 L, net weight 40 kg.

  
  

• ZB58KQE-TFD: Displacement 127.1 cc/rev, nominal 8 HP, oil charge 2.51 L, net weight 57 kg.

  
  

• ZB38KQE-TFD-559: Refrigerant R134a/R404A/R507, displacement 15.7 m³/h.

  
  

III. Detailed Explanation

• The Medium-Capacity Group adopts Copeland's Dual Compliant Scroll technology, allowing the scrolls to separate along the radial and axial directions. Debris or liquid can pass through the scrolls without damaging the compressor, providing higher lifespan and reliability, better liquid tolerance, and better impurity tolerance.

  
  

• The unique unloaded start design eliminates the need for start capacitors or relays in single-phase compressors, and in most applications requires no crankcase heater or liquid accumulator.

  
  

• The core advantage of this group lies in its precise power step coverage—four power ratings (ZB38 at 4HP, ZB45 at 6HP, ZB48 at 7HP, and ZB58 at 8HP) accurately match various demands from small-to-medium cold storage to medium food retail display cabinets.

  
  

• The high energy efficiency ratio ensures the scrolls "wear in, not wear out," performing better over time with high volumetric efficiency.

  
  

• For applications such as medium cold storage, vegetable fresh-keeping storage, food retail display cabinets, and industrial ice machines, this group reduces compressor failure risk through precise power matching and strong liquid slugging resistance, while its compact lightweight design (40–57 kg) facilitates equipment integration and on-site installation.

  
  

• For contractors and service technicians, the KQE series' comprehensive compatibility with R404A/R507/R134a enables flexible adaptation to refrigerant system replacement needs, reducing spare parts inventory variety.

  
  

IV. Application Quick Selection Guide