Emerson PMX Series Manuale utente

PMX Condensing Unit

User Manual

Table of Contents

Contents Page

Introduction, Scope, Disclaimer

Safety Information

Unit Models

Features & Beneﬁts

CDU Layout

Scope of Supply

Electrical Connections

CDU Performance/Technical Data

Installation & Start-up

Commissioning Report

About Emerson

Introduction

Disclaimer

Emerson PMX Condensing Unit comes with Copeland Scroll compressors with

liquid injection technology.

This document is designed to help the contractor and customer for the

installation, commissioning & operation of Emerson’s PMX Condensing Unit.

Scope of supply – Check page number 8 of this manual for detailed scope of

supply.

Thank you for purchasing the Emerson™ PMX Condensing Unit. We hope that

this product meets your intended refrigeration requirement. Please read

through this operation manual to familiarize yourself with the installation,

commissioning and operation of this product. Please do read the following

information in this page before proceeding with the rest of the manual.

The Emerson™ PMX scroll refrigeration condensing units should only be

installed by suitably qualiﬁed and experienced refrigeration technicians. No

responsibility can be accepted for damage caused by inexperienced or

inadequately trained site technicians or improper system design. All

instructions and procedures described in this manual are based on good

refrigeration trade practices as applicable to this particular product. The

installation contractor may prefer to use variations to these

recommendations. However, the methods described in this manual represent

the minimum requirements to avoid any subsequent warranty claims for this

equipment and its components. These instructions do not cover the

fundamentals of good electrical or refrigeration practice and are therefore

intended for use only by qualiﬁed and/or experienced personnel or

technicians.

For any additional query, please consult your local sales office, quoting unit

model and serial number as shown on the nameplate. In case of ambiguity,

the wiring diagram supplied with each unit takes precedence over the

diagram in this manual.

1. Safety Information

1.1 Installation and commissioning work on CDU shall be carried out only by

qualiﬁed, refrigeration personnel who have been trained and instructed.

1.2 PMX condensing unit is manufactured according to the latest safety

standards. Emphasis has been placed on the user’s safety. For relevant standards

please refer to the manufacturer’s declaration, available on request. You are strongly

advised to follow these safety instructions.

1.3 Icon explanation

1.4 Safety Statements

a. Only qualiﬁed and authorized refrigeration personnel are permitted to install,

commission and maintain this equipment.

b. Electrical connections must be made by qualiﬁed electrical personnel.

c. All valid standards for connecting electrical and refrigeration equipment must

be observed.

d. The national legislation and regulations regarding personnel protection must

be observed.

Use personal safety equipment.

Safety goggles, gloves,

protective clothing, safety boots

and hard hats should be worn

where necessary.

1.5 General Instructions

1.6 Safety Refrigerants/Lubricant

a. Please use correct refrigerant as designed to work in safe operating envelope.

b. Compressor is supplied with an initial oil charge. The standard oil charge for

use with HFC refrigerant is polyol ester (POE) lubricant Emkarate RL 32 3MAF.

2. Models:

3. Features and Beneﬁts

PMX1A-ZB21-TF5-1

PMX1A-ZB21-TF7-1

PMX2A-ZB45-TF5-1

PMX2A-ZB45-TF7-1

PMX1A-ZB26-TFM-1

PMX2A-ZB38-TFM-1

PMX2A-ZB48-TFM-1

ZB21KQE-TF5

ZB21KQE-TF7

ZB45KQE-TF5

ZB45KQE-TF7

ZB26KQE-TFD

ZB38KQE-TFD

ZB48KQE-TFD

220-240 V / 3~ / 60 Hz

380-420 V / 3~ / 60 Hz

220-240 V / 3~ / 60 Hz

380-420 V / 3~ / 60 Hz

380-420 V / 3~ / 50 Hz

CDU Model Compressor Model Power Supply

Scroll compressor

Condenser

Accessories

-Optimized condenser coil for maximum heat transfer

Features Beneﬁts

-High efﬁciency

-Compliance mechanism for resistance to liquid

ﬂood back

-Scroll geometry optimized at low condensing temp

where runs most of the year

-Sound shell allows reduction of 10…12dBA

-Smaller motors and light weight

-Easier to change/retroﬁt

-Large operating envelope

- Alco PS1 LP Cut-out for safety

- Hermetic moisture indicator

- Filter drier

4. Physical Layout of the Unit:

Item

Scroll Compressor

Liquid Receiver

LP Cut-out

Condenser

Fan

Filter Drier

Hermetic Moisture Indicator

Power Contactor

Description

5. Scope of supply:

6. Electrical Connections:

Liquid Line Filter Dryer

Sight Glass

Adjustable LP Switch

Thermal Overload Relay

Power Contactor

CDU Model PMX1A-ZB21-TF5/TF7

PMX1A-ZB26-TFM-1 PMX2A-ZB45-TF5/TF7 PMX2A-ZB38/48-TFM-1

7. CDU Performance/Technical Data

Condensing Unit: PMX1A-ZB21-TF7-1

Compressor: ZB21KQE-TF7

Refrigerant: R404A Dew Point

Power Supply 380-420 V / 3~ / 60 Hz

*R404A, Evaporating -10°C, Ambient 46°C, Suction Gas Return 20°C, Subcooling 0K

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