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8.3 SUPPLY VOLTAGES AND FREQUENCIES
The compressor must be selected according to the voltage and frequency conditions where the installation
will operate in the field.
Verify that the voltage fluctuations are within the admitted limits of the selected
compressor (see Table
10.1). Voltage must be measured at the compressor
electrical pins at the start and running at the max load.
As it is not allowed to run the compressors without the terminal cover properly
fixed on the terminal fence, this measurement must be taken outside the cover, as
close as possible to compressors pins.
Deviations of the supply voltage from the approved limits may impact the overload
protector actuation and damage the compressor and other parts.
For the compressor connection to the electrical supply line and for
maintenance/repairing operation, refer also to Appendix 1 – Recommendations
– safety instruction for compressors installation.
The correct sizing of the electric supply cables is important to guarantee low voltage drops at compressor start
and during running under high load.
8.4 OPERATING ENVELOPES
The The Operating Envelops represented in this section, are valid for all models of scroll compressors for
correspondent application and refrigerant used.
Compressors are developed and approved as multirefrigerant solutions; means that the same compressors
model or Bill of Material can use different refrigerant based on customer need.
List of approved refrigerants is indicated in Table
6.2 – Approved refrigerants and/or Chapter 7 – Technical
specification.
Scroll compressors are designed and approved:
MBP
- up to 65°C of Condensing temperature for refrigerants
R404A, R449A, R448A, R452A; and up to 75°C with
refrigerant R134a, R513A
LBP
- up to 65°C of Condensing temperature for refrigerants
R404A, R449A, R448, R452A
WARNING
WARNING
CAUTION
