Daikin DWSC - Vintage C, Installation, Operation And Maintenance Manual

Page 1: ...riginal Instructions REV 01 Date 06 2021 Supersedes D EIMWC00803 21_00EN Installation Operation and Maintenance Manual DWSC Vintage C Installation Operation and Maintenance Manual D EIMWC00803 21_01EN...

Page 2: ...Heater 24 4 12 Relief Valves 24 4 12 1 Refrigerant Vent Piping 24 5 ELECTRICAL INSTALLATION 25 5 1 General specifications 25 5 2 Electrical supply 25 5 3 Power wiring 25 5 4 Control power wiring 26 5...

Page 3: ...ics 43 14 4 3 Voltage Harmonics 43 14 4 4 EMI and RFI Filter 43 14 5 SAFETY 44 14 5 1 Avoid electrocution 44 14 5 2 Residual risks 45 14 6 HANDLING AND TRANSPORT 45 14 7 MECHANICAL INSTALLATION 46 14...

Page 4: ...peration 46 Fig 15 Lifting the VFD 47 Fig 16 Minimum space requirements for VFD 47 Fig 17 VFD Identification Label 48 Fig 18 Electrical Panel mono identification Label 48 Fig 19 Electrical Panel dual...

Page 5: ...D EIMWC00803 21_01EN 5 57 Fig 1 Typical refrigerant circuit Water inlet and outlet are indicative Please refer to the machine dimensional diagrams for exact water connections...

Page 6: ...D EIMWC00803 21_01EN 6 57 Fig 1 Typical oil circuit...

Page 7: ...CONTROLLER FUNCTION TT TEMPERATURE TRANSDUCER DPS DIFFERENTIAL PRESSURE SWITCH N 2 for VFD units FS FLOW SWITCH L1 SUCTION LINE Evaporator Compressor L2 DISCHARGE LINE Compressor Condenser L3 MAIN LIQ...

Page 8: ...ctrical hazard symbol 4 Control panel code 2 Non flammable gas symbol 5 Unit nameplate data 3 Gas type 6 Unit characteristics technical Fig 3 Description of the labels applied to the Motor Terminal Bo...

Page 9: ...D EIMWC00803 21_01EN 9 57 Fig 4 Label on compressor DEVICE UNDER PRESSURE RELEASE PRESSURE IN ALL COMPRESSOR SECTIONS BEFORE SERVICING For more detail see par 13 2 5...

Page 10: ...and vented while accessing the refrigerant system In some cases cross connection lines may be required to ensure recovery of all refrigerant in all sections of the affected system or components All u...

Page 11: ...fore accessing it to carry out maintenance residual energy in the components which takes at least this length of time to dissipate poses the risk of electrocution 19 The unit contains pressurised refr...

Page 12: ...pment Models DWSC are cooling only In the DWSC each unit has one compressor connected to a condenser and evaporator Information in this manual referring to all DWSC units except where specifically not...

Page 13: ...rigging the equipment to prevent damage to the control panels or refrigerant piping See the certified dimension drawings included in the job submittal for the center of gravity of the unit Consult the...

Page 14: ...phere may damage electronic components 3 2 Operation Operation is allowed within the following limits Equipment room temperature operating 32 F to 104 F 0 C to 40 C Maximum entering condenser water te...

Page 15: ...rwise They are installed to be flush with the sides and outside edge of the feet Most DWSC units have six mounting feet although only the outer four are required Six pads are shipped and the installer...

Page 16: ...n the case where the water temperature entering the condenser is less than 20 C A service valve with pressure outlet is provided on the condenser shell for this purpose The valve must modulate its ope...

Page 17: ...ssure drops The pressure drops and flow rates for the various evaporators and condensers are job specific and the original job documentation can be consulted for this information Refer to the nameplat...

Page 18: ...d outlet connections and air vents at the high points The water heads can be interchanged end for end so that the water connections can be made at either end of the unit If this is done new head gaske...

Page 19: ...D EIMWC00803 21_01EN 19 57 4 8 Field Insulation Guide...

Page 20: ...D EIMWC00803 21_01EN 20 57 Compressor feet...

Page 21: ...erefore the maximum charge for a total unit with the evaporator Actual charge for a specific selection can vary with tube count and can be obtained from the Daikin Selection Program 4 9 2 Condenser Wi...

Page 22: ...Side Water Flow gpm 11 9 2 9 2 0 1 54 Inlet Temperature F 80 0 65 0 55 0 45 0 Outlet Temperature F 87 3 94 5 98 4 101 5 Pressure Drop ft 9 9 0 6 0 3 0 2 DWSC DHSC 100 126 Cold Side Water Flow gpm 21 9...

Page 23: ...Cooling Water connection sizes Model DWSC 079 126 Conn Size in 1 in CHILLER OIL COOLER STOP VALVE STRAINER MAX 40 MESH SOLENOID VALVE DRAIN VALVE OR PLUG STOP VALUE PUMP R S COOLING TOWER OPEN DRAIN...

Page 24: ...g pipe connections Whenever vent piping is installed the lines must be run in accordance with local code requirements where local codes do not apply the latest issue of ANSI ASHRAE Standard 15 code or...

Page 25: ...ondensation shall be avoided by design of the equipment or where necessary by additional measures contact the manufacturer representative This product complies with EMC standards for industrial enviro...

Page 26: ...Flow Switches Water flow interlock terminals are provided on the Unit Control Panel terminal strip for field mounted switches The purpose of the water flow interlocks is to prevent compressor operatio...

Page 27: ...he engine overheating The maximum permitted voltage unbalance is 3 calculated as follows 100 where Vx phase with greater unbalance Vm average of the tensions Example the three phases measure 383 386 a...

Page 28: ...onditions Electrical network Yes No N D Power leads connected to starter load leads run to compressor ready for connection when service engineer is on hand for start up All interlock wiring complete b...

Page 29: ...orm installation and maintenance with other people 7 2 Standby Power It is essential that any centrifugal chiller connected to standby power come to a complete stop on grid power and then be restarted...

Page 30: ...by the hot gas regulating valve This hot gas provides a stable refrigerant flow and keeps the chiller from short cycling under light load conditions It also reduces surge potential on heat recovery u...

Page 31: ...83 4 118 166 0 158 292 2 40 35 0 80 86 7 120 171 1 160 299 9 42 37 0 82 90 0 122 176 4 162 307 8 44 39 0 84 93 5 124 181 8 164 315 8 HFC HFO R513A Temperature Pressure Chart F PSIG F PSIG F PSIG F PSI...

Page 32: ...to properly interpret the oil wear test results Numerous test results from various testing laboratories have recommended action that has prompted unnecessary concern by customers Polyolester oils are...

Page 33: ...form of dissolved water can be present in lubricating oil to varying degrees Some polyolester oils may contain up to 50 parts per million ppm of water from new unopened containers Other sources of wa...

Page 34: ...discharge pressures should be noted and recorded as well as condenser and chiller water temperatures The suction line temperature at the compressor should be taken at least once a month Subtracting t...

Page 35: ...line shut off valve on drain line must remain open As an alternative the moto r housing can be emptied through its pressure port on the inlet cooling line Never work on the motor housing if not checke...

Page 36: ...ean if required 8 4 Annual Startup A dangerous condition can exist if power is applied to a faulty compressor motor starter that has been burned out This condition can exist without the knowledge of t...

Page 37: ...ns of mercury A mercury manometer or an electronic or other type of micron gauge must be connected at the farthest point from the vacuum pump For readings below 1000 microns an electronic or other mic...

Page 38: ...nge if indicated by oil analysis X III Controls A Operating Controls Calibrate Temperature Transducers X Calibrate Pressure Transducers X Check Vane Control Setting and Operation X Verify Motor Load L...

Page 39: ...e very low design approach temperatures in the order of one to one and one half F The chiller unit controller can display the water and the saturated refrigerant temperatures Simple subtraction will g...

Page 40: ...office Consult your local Daikin Representative for warranty details 11 PERIODIC CHECKS AND COMMISSIONING OF PRESSURE EQUIPMENT The units are included in category IV of the classification according to...

Page 41: ...d inside the electrical panel 1 Fill in with indelible ink the refrigerant charge label supplied with the product as following instructions any refrigerant charge for each circuit 1 2 3 added during c...

Page 42: ...ed to make the required compressor lift Guide vanes take over to make up the difference in required capacity reduction This methodology provides the optimum efficiency under any operating condition 14...

Page 43: ...ommon coupling PCC as far from the drives close to the power source as possible 2 Increase the size decrease the impedance of the source transformer 3 Increase the capacity decrease the impedance of t...

Page 44: ...be energised since they may be connected to a separate power source RISK OF BURNS Electrical currents cause components to get hot either temporarily or permanently Handle power cable electrical cables...

Page 45: ...this manual the manufacturer s responsibilities Daikin Applied Europe S p A they come to decay During the transport and handling of the product it is strictly recommended to use a forklift or pallet...

Page 46: ...ust be 45 maximum lifting weight must be respected 14 7 MECHANICAL INSTALLATION 14 7 1 Shipping The stability and the absence of any kind of deformation of the unit during shipping must be ensured If...

Page 47: ...and or damage on the installation site the following precautions and instructions must be followed Avoid air flow recirculation Make sure that there are no obstacles to hamper air flow Air must circu...

Page 48: ...S485 using VFD Nav Software gives access to more detailed information of the VFD 14 8 1 Product Identification The VFD is identified by its label which contains the following information Recognized co...

Page 49: ...dividuation of Parts VFD panel in composed by the elements shown in Fig below Fig 20 Inverter panel parts mono Fig 21 Inverter panel parts dual Dwg Ref Description 1 Line reactors 2 VFD 3 Capacitors 4...

Page 50: ...PE 3ACAP012C PE 3ACAP003C PE 3ACAP014C Capacitor Bank centrifugal 2 PE 2PWR001_00EC PE 2PWR001_00FC PE 2PWR001_00CC Power Card 3 PE 2REG002_00AC PE 2REG002_00AC PE 2REG002_00AC Regulation Card 4 PE 2F...

Page 51: ...dards harmonised standards electromagnetic compatibility_en DIRECTIVE 2011 65 EU RoHS 2006 1097 EC REACH Since this product is sold only as a sub assembly of a compressor it is out of the scope of Mac...

Page 52: ...l If inverter panel disconnection is needed it is necessary to avoid that pressure is in these tubes before their removal To safely disconnect this line follow the following steps Close the highlighte...

Page 53: ...tenance and with the product de energized The product maintenance operations are divided from the operational point of view into two main categories Ordinary maintenance All those operations that the...

Page 54: ...not to intervene independently if the intervention falls outside what is reported in routine maintenance 14 10 VFD COMMUNICATION 14 10 1 Modbus RTU Configuration Protocol Modbus RTU Address User defin...

Page 55: ...of Power Holes D46 D47 0x2015 48213 1 R Number of solenoid cycles D38 D39 0x2017 48215 1 R Motor power D01 0x2019 48217 16 R Run command C21 0x201A 48218 1 R W Speed reference P230 0x201B 48219 1 R W...

Page 56: ...W DC Bus ripple N92 0x2038 48248 16 R The status words are defined as follows VFD Status Word Bit 0 to 15 Bit Status 0 VFD Run 1 Motor 1 Generator 0 Mode 2 Not used 3 Power Supply Off 4 Not used 5 Al...

Page 57: ...t of its knowledge No express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services presented therein Sp...