Digital Copeland Scroll ZRD Compressors for R22, R407C and R410A Refrigerant

General Information :

ZRD Model

R22 and R407C

  • Single Phase: 4 Models
  • Three Phase: 4 Models


  • Single Phase: 4 Models
  • Three Phase: 5 Models

Scroll Efficiency and Reliability

  • COP improvement leads to annual electrical savings of 15–20% as compared with reciprocating systems
  • 70% fewer moving parts than reciprocating
  • Superior liquid handling

Smooth Scroll Movement

  • Low sound and vibration leading to reliable & peaceful operation
  • No complex internal suction and discharge valves for quieter operation and higher reliability.

Qualified for R22, R407C and R410A

Wide Range Operating Envelope

Copeland Scroll TM Digital Compressors offer stepless capacity modulation in air conditioning applications and a flexible solution for R22, R407C and R410A refrigerant.

In many cooling and heating systems, load and operating conditions vary over a wide range, thus, requiring the use of capacity modulation. The Digital Scroll TM is a simple compressor solution able to assure stepless modulation down to 10% of the nominal capacity allowing for precise temperature and humidity control, superior comfort and energy saving.

This compressor range is the preferred choice for VRF, rooftop, chilled water and process cooling applications

  • Wide modulation range from 10% to 100% for immediate load adjustment, precise temperature control and optimal comfort
  • Energy efficient operation at part load conditions
  • Copeland Scroll axial and radial compliance offers 
high reliability
  • Fewer starts/stops
  • Constant speed operation means simpler system 
oil return management
  • Easy to install, commission and maintain – simple 
system architecture, no complicated electronics and no EMI/EMC problems

The modulation mechanism of a Copeland Digital Scroll compressor

Compressor in loaded state operates as a standard scroll and delivers full capacity and mass ow. During the unloaded state, however, the system delivers no capacity and no mass flows through.

Varying the ‘loaded state’ and the ‘unloaded state’ times, any capacity between 10% and 100% can be delivered by the compressor.

Maximum Allowable Pressure (PS)

ZRD 36 to ZRD 81:

Low side PS 20 bar / High Side PS 29.5 bar

ZRD 94 to ZRD 125:

Low side PS 20 bar / High Side PS 32 bar

ZPD 34 to ZPD 91:

Low side PS 28 bar / High Side PS 43 bar


Catalog :

Catalog Scroll ZR

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