Compressor Handbook - Embraco

7.1.5 Compressor operating fields
COMPRESSORS
HANDBOOK
Chapter
RUNNING DATA AND COMPRESSOR CHECKING PROCEDURES
Within the minimum and maximum values typical for each model.
In the diagrams represented on the following pages, indicated are the limits of evaporating, condensing,
ambient and return gas temperatures.
The compressor can operate within the limits of evaporating and condensing temperatures defined
by the outlined area bordered by a continuous line, at the indicated conditions of ambient
and return gas temperature.
Outside these operating fields, the system operates at high pressures and high temperatures, and
cause early defects in the compressor.
The compressor defects caused by applications operating outside the prescribed fields will not
be considered under warranty.
7.1.5.1 R22 Compressors operating field
The production of R22 compressors was required for the replacement of R12 - R502 refrigerants
and the choice has been obliged by the non availability at that moment of other suitable alternative
gases.
For low and medium temperature R22 cabinets, compressors must be selected according to the
limits associated with this type of gas, that was developed for high evaporating temperatures,
thus characterized by restrictive limits.
7.1.5.2 R404A - R507 - R600a - R134a - R22 – R290 compressors operating field
The working fields represented in this section are related to all model and series of compressors
that take the indicated refrigerant.
1 – LBP: R134a – R600a
2 – LBP: R404A – R507 – R290
3 – MBP: R404A – R507 – R290
4 – HBP: R134a – R600a – R 22
5 – LBP: R 22
6 – AC
Doc. Code Emission Revision Date Page
MP01E 2000-04 0 20-02 80 - 98