Emerson ZB Copeland Scroll Service Manual download pdf (Page 4)

ZB Series

Features

Dual Compliance

This design ensures good sealing between the scroll spirals. It

allows the scroll spirals to contact and separate along the radial

and axial directions. Debris or liquid can go through the scroll disks

without damaging the compressor. This results in:

longer lifetime and better reliability

better liquid handling capability

better handling of debris

Designed for high energy-efficiency:

The scroll spirals in a scroll compressor wear in, rather than wear

out. Over time, the wear-in improves performance. This ensures a

very high volumetric efficiency.

Designed for lower noise and vibration:

The scroll design creates a smooth sound spectrum and better

sound quality. The layout of the compression chambers is

symmetric, making for very minimal imbalances. Manufacturing

accuracy of scroll compressors is quite high. Scroll compressors do

not normally require any vibration-absorbing device.

"Unloaded Start" technique

After shut down, the two scroll forms are separated from each

other. This enables full internal pressure equalization at shut down.

For this reason, additional start capacitors are not normally

necessary at start-up of single phase models.

High-efficiency "Teflon" bearings:

High Efficiency "Teflon" is used for

the upper main and drive bearing.

"Space age" materials used in the

compressor include:

(1) Porous bronze

(2) PTFE-lead overlay

There is exceptionally low friction.

This also allows for extended

operation without lubrication.

Copeland refrigeration scroll compressors offer outstanding

solutions for medium and high temperature applications. ZB

Series of refrigeration scroll compressors are ideal for compact

system designs that require a high degree of reliability and

energy-efficiency. Available ZB Series is in the range of 2-15HP.

Applicable refrigerants include R22, R404A, R507 and R134a.

Refrigerating capacity data

Refrigerating capacity data listed in this manual are applicable for

power frequencies of 50Hz (speed of motor equals 2900rpm) and

60Hz (speed of motor equals 3500rpm). The scope of compressor

operation should not exceed listed conditions.

All specifications in this catalogue are subject to change without

notice.

Axial compliance

Radial compliance

Fixed scroll

Orbiting

scroll

Crankshaft

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Emerson ZB Copeland Scroll Service Manual Page 4

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