Emerson COPELAND ZO18AG, Инструкции по применению

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AGL_Ref_ST_ZO_E_Rev00 3
2 Product description
2.1 Compressor range
These application guidelines cover Copeland
™ scroll fixed- and variable-speed compressor
models ZO(V)*AG using CO
2
(R744). These compressors have a speed range of 1500 to 6000
revolutions per minute, corresponding to 25 to 100 revolutions per seconds (1/s). They are intended
for use in refrigeration applications. They feature a three-phase brushless permanent magnet (BPM)
motor which is controlled by an Emerson EVM/EVH motor control drive, referred to as the "EVM/EVH
drive" or "drive" throughout these guidelines.
Figure 1: ZO(V)*AG compressor and EVM/EVH drive
NOTE: For more information on the motor control drive please refer to the EVM/EVH User
Manual.
Compressor
Cooling capacity* (kW) with R744
Motor
1500
rpm
3000
rpm
4500
rpm
6000
rpm
ZO18AG - 5.95 - - TFD
ZO25AG - 8.25 - - TFD
ZO38AG - 12.45 - - TFD
ZO46AG - 15.15 - - TFD
ZOV18AG 2.90 6.29 9.54 12.45 9X9
ZOV25AG 4.06 8.65 13.20 17.45 4X9
ZOV38AG 6.27 13.15 20.10 27.00 4X9
* Evaporating temperature: -35 °C; condensing temperature: -5 °C; suction gas superheat: 10 K;
liquid sub-cooling: 0 K
Table 1: ZO(V)*AG compressor capacity for LT applications
2.2 Matched pairs of compressor and drive
The ZOV*AG compressors with motor code "X" are offered as matched pairs with the EVM/EVH
drive, designed in accordance with EN 60335-1.
The matched pairs have been designed for maximum efficiency and reliability. The drive will power
the compressor, control the compressor running speed and communicate with the master controller
in Modbus RTU protocol. The drive requires cooling and is typically installed in the unit near the
compressor. To optimize drive efficiency and to limit electromagnetic interferences, external chokes
must be connected to the three-phase drive.
The ZOV*AG compressors are sold as unprotected compressors. They are dedicated for use with a
third-party drive. The motor protection is under the responsibility of the system manufacturer/installer.
A third-party control system must include discharge temperature protection, current overload
protection, and a soft start-and-stop routine. Contact the Application Engineering department at
Emerson for compressor motor specifications and speed adjustment requirements.
It is important to ensure correct wiring at both the compressor and drive connections prior to