Emicon R-PAE Use And Maintenance Manual
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Emicon R-PAE Use And Maintenance Manual

Air cooled water chillers and heat pumps
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USE AND MAINTENANCE MANUAL
AIR COOLED WATER CHILLERS
AND HEAT PUMPS
R-PAE / R-PAH / EAH
Rev. 1 03/09

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  • Page 1 USE AND MAINTENANCE MANUAL AIR COOLED WATER CHILLERS AND HEAT PUMPS R-PAE / R-PAH / EAH Rev. 1 03/09...

  • Page 3: Table Of Contents

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 TABLE OF CONTENTS 1. INTRODUCTION ........................... pag. 2 1.1 Manual content ............................pag. 2 1.2 Safety marks ............................pag. 2 1.3 Referring standards ..........................pag. 2 1.4 Warranty ...

  • Page 4: Introduction

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 1. INTRODUCTION 1.1 Manual content The present handbook, originally written in Italian, was completed in compliance with the “Machinery Directive”. It contains all the necessary information for carrying out without any risk transportation, installation, startup, operation, setting, maintenance and dismantling of the air cooled water chillers and heat pumps of series R-PAE / R-PAH / EAH.

  • Page 5: Readers Of The Manual

    Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Warning: on the first startup, duly fill in the relevant report attached to this manual and send a copy to Emicon A.C. (Customer Service), in order to make the warranty valid. 1.5 Readers of the Manual This manual and all its attachments are supplied with the described unit.

  • Page 6: Dangerous Areas

    3. GENERAL DESCRIPTION 3.1 Characteristics of the water chillers RAE-H / EAH and of heat pumps PAE-H The units of series R-PAE / R-PAH / EAH are supplied with refrigerant charge and anti-freeze oil; they are tested at the factory.

  • Page 7: Main Components

    Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 3.2 Main components The units of R-PAE / R-PAH / EAH series are made of the following main components: Ø The housing is made of galvanized and painted pressure bended steel plate or housing made of aluminium section;...
  • Page 8 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 RAE - PAE with centrifugal fans Picture 2 RAH – PAH - TWIN VERSION Picture 3...

  • Page 9: Cooling Circuit

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 4 1) Electric panel 2) Compressor 3) Heat exchange coil 4) Evaporator 5) Tank 3.3 Cooling circuit Picture 5...
  • Page 10 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 6 Picture 7...
  • Page 11 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 8 Picture 9...
  • Page 12 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 10 Picture 11...
  • Page 13 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 12 Picture 13...
  • Page 14 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 14 Picture 15...
  • Page 15 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 16 Picture 17...

  • Page 16: Technical Specification

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 3.3.1 Cooling circuits key AIR HEAT EXCHANGER PDIO OIL GAUGE EXPANSION VESSEL AIR DISCHARGE VALVE PDSO OIL LEVEL PRESSOSTATIC VLAVE EVAPORATOR VIBRATION DAMPER PDSW DIFFERENTIAL WATER SWITCH...
  • Page 17 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 CS: Compressor inrush counter DS: Star/Delta compressors startup FA: Condensing coil protection filters GP: Protection grid for condensing coil GP1: Protection grid for the technical section (compressors, pump group) HG: Hot gas by-pass.

  • Page 18: Installation

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4. INSTALLATION 4.1 Identification tag The data for the identification of the unit are marked on a permanent tag (Picture 18). Picture 18 – Identification tag The correct unit identification by means of the serial number is essential for the execution of any operation to carry out on the unit.

  • Page 19: Handling

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4.3 Handling The handling of the unit must be carried out by expert personnel, equipped with appropriate equipment in relation to the weight and to the dimensions of the machine. During the handling operation, the machine must be always kept upright.
  • Page 20 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 20 – Lifting of centrifugal units Picture 21 – Lifting of RAE / PAE 752 - 3172...
  • Page 21 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 22 – Lifting of RAH / PAH TWIN 2102 - 8802 Picture 23 – Lifting of RAH / EAH 301 - 2214...

  • Page 22: Arrangements And Placing

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 In case the manufacturer lifting kit (option) is not employed, make sure that the lifting equipment used, the cables and the belts are in compliance with the relevant local regulation.
  • Page 23 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 25 – Service Area for RAE / PAE 131 - 822 RAE / PAE version C 131 - 181 RAE / PAE 752 - 3172...
  • Page 24 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 RAH / PAH TWIN 2102 - 8802 Picture 27 – Service Area for RAH / EAH 301 - 2214 Picture 28 – Service Area for...
  • Page 25 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 RAE / PAE C 201 - 822 Picture 29 – Service Area for version 842 - 2602 Picture 30 – Service Area for RAE / PAE...

  • Page 26: Hydraulic Connections

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 31 – Distances in case of coverings Before starting to handle the unit to position it, it is necessary to identify the best way to arrive to the place, taking into consideration the unit overall dimensions and weight, the available lifting equipment and any optional accessory dimensions.

  • Page 27: Evaporator

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Ø The unit must be connected to the hydraulic system by using the appropriate areas as indicated in the commercial drawing here attached. Ø The diameter of the hydraulic connections are shown in the commercial drawing here attached.

  • Page 28: Use Of Anti-Freeze Mixtures

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Use of anti-freeze mixtures 4.5.2 In case an anti-freeze mixture is used, it is necessary to follow some precautionary measures: The temperatures shown in the above table are approximate. Sometimes suppliers dilute the product and Ø...

  • Page 29: Electric Connections

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4.6 Electric connections Check the electric circuits have not been damaged during transportation. Check all terminals screws are tight. Make sure the power tension and frequency match the same data as specified on the unit identification tag.

  • Page 30: Warning In Case Of Connection To The Terrmnal Board When Optional "Te" Is Installed

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4.6.2 Warning in case of connection to the terminal board when optional “ TE” is installed In case the unit is provided with optional TE (electronic thermostatic valve), pay the maximum attention to the spare battery power supply.

  • Page 31: Remote Control Connection

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4.6.3 User’s terminal board connection A user terminal board (Picture 35) is available with free contacts designed for: Ø Generic alarm state (1); Ø Unit remote ON/OFF (2).

  • Page 32: Instructions For The Electric Connections

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 4.6.4 Instructions for the electric connection The electric connection must be carried out by skilled personnel. The power cable input is shown in the attached dimensional scheme.

  • Page 33: Phases Sequence In The Power Supply Line

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 39 4.6.5 Phases sequence in the power supply line The rotation direction of all electric motors installed on the unit (compressors, fans, pumps) are checked and harmonized during the operational test performed by the manufacturer (at the exception of units supplied with arrangements for special power supply tension).

  • Page 34: Operation

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 5. OPERATION 5.1 First check Before starting the unit, make sure that: Ø The evaporator water side is supplied with a suitable water flow according to the project;...

  • Page 35: Fault Alarm And Display System

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 5.4 Fault alarm and display system The troubleshooting is realized by the microprocessor, which activates an alarm and shows on its display the type of fault occurred (see also the attached microprocessor manual).
  • Page 36 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 TROUBLE POSSIBLE CAUSE CORRECTIVE ACTION A) The high pressure switch is not set Replace the high pressure switch or reset it properly or is defective 5.

  • Page 37: Routine Maintenance

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 TROUBLE POSSIBLE CAUSE CORRECTIVE ACTION Reset the automatic switch; check the cause A) Automatic switch activated for the activation Check the compressor winding resistance; after 11.
  • Page 38 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 B) VACUUM AND DEHYDRATATION To obtain a good level of vacuum, an appropriate pump must be used (1,4 mbar of absolute pressure, 30 l/min. of water capacity). If the circuit has been open only for short time, by using this pump, only one vacuum operation is usually enough to reach the absolute pressure 1,4 mbar.
  • Page 39 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 5.6.3 Check of the setting up The setting up must be checked while the unit is working in conditions as close as possible to the nominal ones.

  • Page 40: Precautionary Planned Maintenance

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 5.7 Precautionary planned maintenance List of operations Every 6 months Every year Check of cooling lines and of their insulation Compressor noise level check Electric connection tightening check...
  • Page 41 After Sales Service of EMICON A.C. S.p.A to report the fact. 5.7.6 Check of the safety water flow switch The safety water flow switch detects the water pressure difference between the exchanger inlet and outlet.
  • Page 42 The centrifugal fans discharge is connected to the external skirt by means of a flexible gasket; the gasket must not be damaged and must not let air pass through. In this case, its replacement is necessary, therefore contact EMICON A.C.
  • Page 43 This could be a sign for a refrigerant leak, then it is necessary to inform EMICON A.C. S.p.A After Sales Service. If humidity is detected inside the circuit, contact immediately EMICON A.C. S.p.A After Sales Service for repairing it.
  • Page 44 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 45 Picture 46 The pictures show two different types of remote control switches: the one shown on Picture 45 is equipped with a detached protection, while the one shown on Picture 46 is equipped with an incorporated protection (automatic circuit breaker).
  • Page 45 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 Picture 47 Picture 48 1. Remove the fusebox cover. 2. Take the extractor tool “2” located inside the electrical panel. 3. Insert the puller into the fuse spring clips (see the white circle on Picture 47) and pull the extractor down till the clips are released.
  • Page 46 Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 The motor pulley is of adjustable type. If to unscrew the fixing dies the regulation must be changed, it is necessary to mark the original position with an indelible felt-tip pen and count the turns of the mobile part so that it is possible to restablish exactly the original regulation once the operation is completed.

  • Page 47: Special Maintenance

    For all the above mentioned operations and for any other operations not completely described on this manual, it is necessary to contact EMICON A.C. S.p.A. After Sales Service. To guarantee the unit a long operation life and to keep it always in the best efficiency conditions and to increase its service reliability, it is highly recommended to contact EMICON A.C.

  • Page 48: Dismantling

    Use and Maintenance Manual Air-cooled water chillers and Heat Pumps R-PAE/R-PAH/EAH Rev. 1 del 03/09 6. DISMANTLING When the unit has to be dismantled, drain the cooling circuit and collect the refrigerant gas by means of an adequate receiver, in order to protect people and environment.
  • Page 51 Emicon A.C. S.p.a. reserves the right to make changes to its products without any prior notice.
  • Page 52 Emicon A.C. S.p.a. Via A.Volta 49 Meldola Tel. +39 0543 495611 Fax +39 0543 495612...

This manual is also suitable for:

R-pahEahR-pae seriesR-pah seriesEah series

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