How to Understand Compressor Nomenclature?

In the global market, there are many types and brands of refrigerant compressors, so the nomenclature of each type of compressor is different.

However, the level and nomenclature of a compressor includes the following parameters:

Compressor type and serial number, compressor voltage, compressor power, refrigeration capacity, compressor working pressure, type of refrigerant, discharge capacity, lubricant type, and capacity, blocking current, certification, protection class, anti-counterfeit marking, etc.

If you need to know more about compressor types, read How Many Types of Compressors?

If you want to know How to Select the Right Compressor?

Now, let’s take Copeland Scroll compressors as an example to introduce the meaning of compressor labels:

How to Understand Compressor Nomenclature

“MAX OPER PRES H” likely stands for “Maximum Operating Pressure High,” which is 43.3 bars.

“MAX OPER PRES L” likely stands for “Maximum Operating Pressure Low,” which is 28.0 bars.

OIL 3MA-POE: “3MA-POE” represents the Polyol Ester Refrigeration Oil type being used. (Type or name of the oil) OZ.40: There are 40 ounces of oil. (The quantity or volume of the oil in ounces).

“Vrms MAX 315” refers to the maximum root mean square (RMS) voltage level, and the maximum or peak RMS voltage for this compressor is 315 volts.

“Phase 3” indicates that the compressor is powered by a three-phase electrical motor.

“Hz 90 – 350” refers to the frequency range within which the compressor operates, here the compressor can operate within a frequency range of 90 Hertz to 350 Hertz.

“BOX IP 54 G” refers to the enclosure rating and protection level of an electrical or electronic enclosure, often used to house sensitive equipment or components.

“IP” stands for “Ingress Protection” or “International Protection,” and it is followed by a two-digit number. In this case, “IP 54” specifies the level of protection provided by the enclosure against the intrusion of solid objects and liquids or splashing water.

“LRA I – BLOCK 18.0” – LRA stands for “Locked Rotor Amperage” which refers to the current or amperage that a motor draws when it starts up from a complete standstill. Here the motor draws 18.0 amps of current when it starts or when its rotor is blocked.

“I – OPER MAX” – refers to the maximum operating current of this compressor. Its maximum operating current limit should not exceed 11.0 units.

“n(min-1) 4500” refers to the rotational speed in revolutions per minute (RPM or min-1). This compressor rotates at a speed of 4500 RPM.

Compressor Model number, you can find the explanation of this model number in nomenclature.

Safety Agency Certification Mark

“R-410A USE ONLY” – this means that only R-410A refrigerant gas should be used with the compressor.

Compressor Nomenclature:

Copeland Compressor Nomenclature

After you find a similar type of compressor with another technical dimension according to your project needs, do a comparison analysis between several brands’ compressors out there.

Look which compressor is more affordable in price having the efficiency, reliability, and service same.

What Brands Compressor HUBHVACR Supply?

Semi-hermetic compressor: Bitzer, Carlyle, Frascold, Refcomp, etc.

Scroll compressor: Copeland, Daikin, Hitachi, Panasonic, etc.

Rotary compressor: GMCC, GREE Landa, Highly, CRSS, etc.

Commercial refrigerator compressor: Kulthorn, SECOP, Embraco, Jiaxipera, Huaguang, Donper, etc.

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