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Summary of Contents for Emicon R-PWE series
- Page 1 USE AND MAINTENANCE MANUAL WATER COOLED WATER CHILLERS AND HEAT PUMPS R-PWE / R-PWH / EWH Rev. 1 02/09...
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Page 3: Table Of Contents
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 pwater cooled water chillers and heat pumps of series R-PWE / R-PWH / EWH. -
Page 5: Readers Of The Manual
Rev. 1 del 02/09 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
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 2.4 Dangerous areas On the unit there are dangerous areas for electric risk and hot temperatures. The unit can be closed by case panels; in this case the dangerous parts inside the unit are not accessible from outside. -
Page 7: Main Components
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 3.2 Main components The units of R-PWE / R-PWH / EWH series are made of the following main components: Ø Housing in painted steel plates or support frame made of bent and painted steel profiles; Ø... -
Page 8: Use And Maintenance Manual Watercooled Chillers And Heat Pumps R-Pwe/R-Pwh/Ewh Rev. 1 Del
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 RWE - PWE multicompressor Pict. 2 RWH – PWH mono/multicompressor Pict. 3 1) Electric panel 2) Compressor 3) Condenser 4) Evaporator 5) Tank... -
Page 9: Cooling Circuit
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 3.3 Cooling circuit Pict. 4 Pict. 5... - Page 10 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 Pict. 6 Cooling circuit keys AIR HEAT EXCHANGER PDIO OIL GAUGE EXPANSION VESSEL AIR DISCHARGE VALVE PDSO OIL LEVEL PRESSOSTATIC VALVE EVAPORATOR VIBRATION DAMPER PDSW DIFFERENTIAL WATER SWITCH THERMOSTATIC EXPANSION VALVE COMPRESSOR...
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Page 11: Technical Specification
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 HUMIDIFIER MODULATING VALVE HEAT RECOVERY LIQUID SEPARATOR HUMIDITY PROBE FREON – FREON HEAT EXCHANGER DEHYDRATING FILTER FREON – OIL HEAT EXCHANGER SIGHT GLASS NOISE LEVEL REDUCER LIQUID RECEIVER OIL SEPARATOR NON-RETURN VALVE... - Page 12 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 RWE - PWE multicompressor Pict. 8 Model RWE / PWE Gas type 541-631-761-931-442-532-612-762-922 1500 1600 (R407C) 1201-1501-1901-1232-1552-1912 1500 1800 (R407C) 892-1082-1212-1512-1852 2500 1800 (R407C) 2462-3102-3822 3000 1800 (R407C) 341-401-491-591-282-352-402-492-592...
- Page 13 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 RWH – PWH mono/multicompressor Pict. 9 Dimension including option CFU Model RWH / PWH Gas type 131-161-191 2430 1525 (R407C) 211-241 2430 1610 (R407C) 301-341 3310 1525 (R407C) 3340...
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Page 14: Main Accessories
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 3.6 Main accessories A: Amperometer AE: Power supply different from the nominal power. CA: Condenser for sea water CC: Insulated condensers CF: Soundproofed compressors cabinet with standard material CFU: Soundproofed compressors cabinet with lead material or similar Soundproofed compressors cabinet with standard material (model RWE monocircuit) Soundproofed compressors cabinet with lead material or similar (model RWE monocircuit) -
Page 15: Installation
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 4. INSTALLATION 4.1 Identification tag The data for the identification of the unit are marked on a permanent tag (Picture 10). Picture 10 – 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 16: Handling
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 17 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 Pict. 12 – Lifting of scroll multicompressor units...
- Page 18 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 Pict. 13 – Lifting of screw multicompressor units 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. The overall dimensions of the units, packaging included, are indicated in the packing list sent by e-mail in order to organise the loading.
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Page 19: Arrangements And Placing
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 4.4 Arrangements and placing The installation of the machine is under the responsibility of the installer who must supervise the execution operations. The execution of a correct installation presupposes that a plan has been drawn up by an expert and that is carried skilled trained... - Page 20 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 Pict. 15 – Service Area for multicompressor scroll units multicompressor screw units Pict. 16 – Service Area for...
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Page 21: Hydraulic Connections
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 22: Evaporator
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 4.5.1 Evaporator For the connection of pipes to the evaporator, it is advisable to follow the instructions listed here below: Ø Connect the pipes as shown in the diagram in Picture 17; Ø... -
Page 23: Hydraulic Connections For Pwe Heat Pumps
Pict. 18; the circuit can be manufactured using manual or automatic 2 or 3 way valves. Avoiding the unit to operate with lack of water flow in the exchangers is of extreme importance. Limit of supply EMICON S.p.a. Pict. 18 - Scheme of Cycle inversion on water side Option... -
Page 24: Hydraulic Circuit Filling
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 4.5.4 Hydraulic circuit filling Once the hydraulic circuit and the unit connection are performed, it is necessary to fill the circuit. Ø Open all the air discharge valves on the circuit. Connect the circuit to a water supply system, possibly in a permanent way, by means of an automatic fill group Ø... -
Page 25: Warning In Case Of Connection To The Terrmnal Board When Optional "Te" Is Installed
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 26: Remote Control Connection
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 4.6.3 User’s terminal board connection A user terminal board (Pict. 21) is available with free contacts designed for: Ø Generic alarm state (1); Ø Unit remote ON/OFF (2). Check the wiring diagram for the exact correspondence of the terminals numbers. -
Page 27: Operation
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 5. OPERATION 5.1 First check Prima di avviare la macchina assicurarsi che: Ø The evaporator and condenser water side is supplied with a suitable water flow according to the project; Ø... -
Page 28: Fault Alarm And Display System
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 fault occurred (see also attached... - Page 29 Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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. The high pressure switch B) Discharge pressure too high See trouble 7 is activated...
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Page 30: Routine Maintenance
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 31: Condensers' Cleaning
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 32: Check Of The Setting Up
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 5.6.4 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. Make sure: Ø... -
Page 33: Precautionary Planned Maintenance
Use and Maintenance Manual Watercooled chillers and Heat Pumps R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 Contactors status check Check of conductors insulation status Check of evaporator water temperature difference... -
Page 34: Demolition
Use and Maintenance Manual Watercooled chile and Heat pump R-PWE/R-PWH/EWH Rev. 1 del 02/09 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 37 Emicon A.C. S.p.a. si riserva la possibilità di apportare modifiche o cambiamenti ai propri prodotti senza nessun preavviso...
- Page 38 Emicon A.C. S.p.a. Via A.Volta 49 Meldola Tel. +39 0543 495611 Fax +39 0543 495612...
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