OVERVIEW
This section details the refrigeration process by
tracking the refrigerant flow through the system
components. The following topics are discussed
in this section.
Scroll Plus™ Refrigeration System
Basic Refrigeration
Heat Reclaim
Receiver Pressure and
Vapor Temperature Regulation
Koolgas Defrost
Oil System
Subcooling — Autosurge and Mechanical
Liquid Injection
The Scroll Plus™system is designed with vertical
receivers to reduce the effective refrigerant
charge. The compact design reduces height and
width requirements, yet provides access to com-
ponents for maintenance and service from the
front or sides of the unit. Because of the use of
Scroll Compressors, vibration characteristics are
greatly reduced, extending system life and mini-
mizing chances for fatigued line breakage.
In this instruction the following criteria is main-
tained to assist the reader.
Electrical solenoid valves carry the same initial
abbreviations as in the electrical schematics.
Refrigeration lines not actually in the cycle being
discussed are shown closed or are removed.
Each refrigerant state maintains the same fill
pattern throughout the instruction.
Pressures in oil lines will also retain a fixed
pattern.
September 1, 1997
P/N 401789
2 - 1
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
REFRIGERATION PROCESS
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