Emerson SZV44, SZO44, SZV32, SZO56 manual Compressor Module, Introduction, Oil coolers with fans

Dual-Compressor Module Introduction

1.0Introduction

The Copeland Scroll® SZO44 Compressor Module comes equipped with two Copeland Scroll® Compressors designed for Class I, Division II applications. The Compressor Module is designed for assembly into a Compressor Package ready for service in the field; the completed housing is done by equipment Packagers. This section provides an overview of these components.

These terms are used throughout this manual:

•Compressor Module - the SZO44 Compressor Module shown in Section 1.1

•Compressor - a Copeland Scroll® Compressor (two per Compressor Module)

•Compressor Package - the entire assembly, including the Compressor Module, ready for service in the field

•Packagers - the company that prepares the Compressor Module for service

•VFD - Variable Frequency Drive used to power a variable speed Compressor Module

1.1The Compressor Module

The Compressor Module consists of two Compressors and the other components shown in Figure 1.

Figure 1 Compressor Module Components

Oil coolers with fans (2)

LEFT

SIDE

VIEW

Oil circuit filter

Oil circuit thermal bypass valve

Copeland Scroll® compressors (2) for Class I, Divison II

RIGHT

SIDE

VIEW

Suction gas connection (1-1/2" NPT)

Control wiring terminations

Power wiring terminations

Second-stage separator

Discharge gas connection (1" NPT)

Inlet check valves (2)

Oil level

First-stage sight tube oil separator

Inlet suction screen

High discharge

gas pressure switch

High discharge gas temp switch

Fan speed thermistor

Oil cooler fans (2)

3 2006SSD-75 R4 (10/10)