Emerson PMX Series User manual

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
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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.

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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.

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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.

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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
380-420 V / 3~ / 50 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

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4. Physical Layout of the Unit:
Item
Scroll Compressor
Liquid Receiver
LP Cut-out
Condenser
Fan
Filter Drier
Hermetic Moisture Indicator
Power Contactor
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Description

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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

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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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Condensing Unit: PMX2A-ZB45-TF7-1
Compressor: ZB45KQE-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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Condensing Unit: PMX1A-ZB21-TF5-1
Compressor: ZB21KQE-TF5
Refrigerant: R404A Dew Point
Power Supply 220-230 V / 3~ / 60 Hz
*R404A, Evaporating -10°C, Ambient 46°C, Suction Gas Return 20°C, Subcooling 0K

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Condensing Unit: PMX2A-ZB45-TF5-1
Compressor: ZB45KQE-TF5
Refrigerant: R404A Dew Point
Power Supply 220-230 V / 3~ / 60 Hz
*R404A, Evaporating -10°C, Ambient 46°C, Suction Gas Return 20°C, Subcooling 0K

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Condensing Unit: PMX1A-ZB26-TFM-1
Compressor: ZB26KQE-TFD
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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Condensing Unit: PMX2A-ZB38-TFM-1
Compressor: ZB38KQE-TFD
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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Condensing Unit: PMX2A-ZB38-TFM-1
Compressor: ZB38KQE-TFD
Refrigerant: R134a
Power Supply 380-420 V / 3~ / 60 Hz
*R134a, Evaporating -10°C, Ambient 46°C, Suction Gas Return 20°C, Subcooling 0K

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Condensing Unit: PMX2A-ZB48-TFM-1
Compressor: ZB48KQE-TFM
Refrigerant: R404A Dew Point
Power Supply 380-420 V / 3~ / 50 Hz
*R404A, Evaporating -10°C, Ambient 46°C, Suction Gas Return 20°C, Subcooling 0K

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