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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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Содержание PMX Series

Страница 1: ...PMX Condensing Unit User Manual ...

Страница 2: ...duction 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 3 4 6 6 7 8 8 9 21 28 29 02 ...

Страница 3: ...alified 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 re...

Страница 4: ...trongly 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 legis...

Страница 5: ...ants 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 ...

Страница 6: ...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...

Страница 7: ...07 4 Physical Layout of the Unit Item Scroll Compressor Liquid Receiver LP Cut out Condenser Fan Filter Drier Hermetic Moisture Indicator Power Contactor 1 2 3 4 5 6 7 8 Description ...

Страница 8: ... 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 ...

Страница 9: ...09 ...

Страница 10: ...rformance 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 ...

Страница 11: ...11 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 ...

Страница 12: ...12 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 ...

Страница 13: ...13 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 ...

Страница 14: ...14 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 ...

Страница 15: ...15 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 ...

Страница 16: ...16 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 ...

Страница 17: ...17 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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Страница 22: ...it s left and rear panels whereas a clearance of 500 mm must be maintained from the unit s right top and front panels seen facing the front of the unit Both service access and airflow have been considered in making these recommendations Where multiple units are to be installed in the same location the contractor needs to consider each individual case carefully There can be many variations of unit ...

Страница 23: ...ould be re capped to prevent moisture and contaminants from entering the system Do not assume that the service connection sizes on the unit at the service valves are the correct size to run your interconnecting refrigeration pipes The service valve sizes have been selected for convenience of installation and in some cases larger units these may be considered too small However for the very short pi...

Страница 24: ...om the evaporators to the condensing unit with minimum 1 thickness closed cell type insulation on low temperature circuits Long liquid lines run in areas exposed to high temperatures should be fully insulated with minimum 1 2 insulation Suction and liquid lines should never be taped or soldered together e Electrical a All electrical work must be done in accordance with the National Electrical Code...

Страница 25: ...ation Initial pressure test by vacuum and nitrogen Step by step Use a 4 port gauge manifold with 3 8 hose and connections to the vacuum pump The vacuum gauge does not have to be connected for this part of the process Connect the gauges to service ports provided on receiver valve and suction tube In order to remove any non condensable that may have entered the system during installation follow thes...

Страница 26: ... external joints a The unit is shipped with a holding charge of dry nitrogen and should be leak free b Ensure that the test pressure do not exceed the system design pressures c Do not expose system pressure control LP to test pressures below the design pressure This can damage the pressure controls d Using an approved calibrated electronic gas leak detector leak test the entire system paying atten...

Страница 27: ...sure correct orientation of the refrigerant cylinder Follow cylinder labeling instructions so that liquid refrigerant can be charged into the system This will be charged through the high pressure side of the manifold and ZX unit liquid service valve 4 Now open the liquid service valve off the back seat With a good vacuum in the system the refrigerant cylinder correct orientation and at ambient you...

Страница 28: ...diluted with clean water Before washing a light brush downward in the direction of the fins should be done to remove heavy deposits Electrical Connections Check tightness of electrical connections occasionally Routine Leak Test All joints should be checked for leaks during site visits All joints should be leak tested once a year Condenser Fan s and Motor s an annual inspection of these items is re...

Страница 29: ...29 System Start Up and Operational Check Sheet Prepared by ___________________ Confirmed by __________________ Date _________________________ Date __________________________ ...

Страница 30: ...or more information visit www Emerson com United Arab Emirates Jebel Ali Free Zone P O Box 26382 Dubai United Arab Emirates Toll Free 8000 441 3428 Tel 971 4 8118100 Fax 971 4 8865465 Saudi Arabia P O Box 34332 3620 2nd Industrial City 67 St Dammam Saudi Arabia Toll Free 8008 443 426 Tel 966 3 8147560 Fax 966 3 8147570 South Africa 9 Quark Crescent Linbro Business Park Sandton 2065 South Africa To...

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