OPERATION MANUAL. Packaged water-cooled water chillers

Transcription

1 OPERATION MANUAL Packaed water-cooled water cillers EWWD120MBYNN EWWD180MBYNN EWWD240MBYNN EWWD280MBYNN EWWD360MBYNN EWWD440MBYNN EWWD500MBYNN EWWD520MBYNN EWWD540MBYNN

2 EWWD120MBYNN EWWD280MBYNN EWWD500MBYNN EWWD180MBYNN EWWD360MBYNN EWWD520MBYNN EWWD240MBYNN EWWD440MBYNN EWWD540MBYNN Packaed water-cooled water cillers CONTENTS Pae Tecnical specifications (1) Introduction... 1 Tecnical specifications... 1 Electrical specifications... 2 Important information reardin te refrierant used... 2 Description... 3 Function of te main components... 4 Safety devices... 4 Internal wirin - Parts table... 5 Before operation... 6 Cecks before initial start-up... 6 Water supply... 7 Power supply connection and crankcase eatin... 7 General recommendations... 7 Operation... 7 Diital controller... 7 Workin wit te unit... 8 Advanced features of te diital controller Troublesootin Maintenance Maintenance activities Disposal reuirements READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN YOUR FILES FOR FUTURE REFERENCE. INTRODUCTION Tis operation manual concerns packaed water-cooled water cillers of te Daikin EWWD-MBYNN series. Tese units are provided for indoor installation and used for coolin applications. Te EWWD units can be combined wit Daikin fan coil units or air andlin units for air conditionin purposes. Tey can also be used for supplyin water for process coolin. Tis manual as been prepared to ensure adeuate operation and maintenance of te unit. It will tell you ow to use te unit properly and will provide elp if problems occur. Te unit is euipped wit safety devices, but tey will not necessarily prevent all problems caused by improper operation or inadeuate maintenance. In case of persistin problems contact your local Daikin Dealer. Before startin up te unit for te first time, make sure tat it as been properly installed. It is terefore necessary to carefully read te installation manual supplied wit te unit and te recommendations listed in "Cecks before initial start-up" on pae 6. General EWWD Dimensions HxWxD (mm) 1014x2672x930 Weit macine weit (k) operation weit (k) Connections cilled water inlet and outlet (a) (inc) 3" OD (76 mm OD) 3" (88.9 mm OD) condenser water inlet and outlet (a) (inc) 2-1/2" 3" (88.9 mm OD) pressure relief valve condenser Compressor Type Qtyxmodel (inc) 1x 1" 1x 1" 2x 1" 1x ZHA5LMGUYE semi-ermetic sinle screw 1x ZHA7MSGUYE Speed (rpm) 2880 Oil type FVC 68D 1x ZHA7WSGUYE Oil care volume (l) Condensor Type sell & tube Qty x model 1x CDEW215 1x CDEW260 1x CDEW400 Evaporator Type Qtyxmodel brased plate eatexcaner 1x AC120EQ-NP156 1x AC250EQ-NP96 1x AC250EQ-NP128 General EWWD Dimensions HxWxD 1014x2672x (mm) x2672x930 Weit macine weit (k) operation weit (k) Connections cilled water inlet and outlet (a) condenser water inlet and outlet (a) pressure relief valve condenser Compressor Type Qtyxmodel (inc) (inc) 3" (88.9 mm OD) 3" (88.9 mm OD) 2x 3" (2x 88.9 mm OD) 2x 3" (2x 88.9 mm OD) (inc) 2x 1" 2x 1" 3x 1" 1x ZHA9LSGUYE semi-ermetic sinle screw Speed (rpm) 2880 Oil type FVC 68D 2x 1x ZHA7MSGUYE+ ZHA7MSGUYE 1x ZHA7WSGUYE Oil care volume (l) x x Condensor Type sell & tube Qtyxmodel 1x CDEW450 2x CDEW260 1x CDEW400 1x CDEW260 Evaporator Type brased plate eatexcaner Qtyxmodel 1x AC250EQ-NP96 1x AC250EQ-NP162 2x AC250EQ-NP96 1x AC250EQ-NP128 (a) Victaulic couplin (1) Refer to te enineerin data book for te complete list of specifications. 1 Packaed water-cooled water cillers

3 General EWWD Dimensions HxWxD (mm) 2000x2672x930 Weit macine weit (k) operation weit (k) Connections cilled water inlet and outlet (a) (inc) 2x 3" (2x 88.9 mm OD) condenser water inlet and outlet (a) pressure relief valve condenser Compressor Type Qtyxmodel (a) Victaulic couplin (inc) 2x 3" (2x 88.9 mm OD) (inc) 4x 1" 2x ZHA7WSGUYE semi-ermetic sinle screw 1x ZHA7WSGUYE+ 1x ZHA9LSGUYE Speed (rpm) 2880 Oil type FVC 68D 2x ZHA9LSGUYE Oil care volume (l) 2x x Condensor Type Qtyxmodel Evaporator Type Qtyxmodel sell & tube 2x CDEW400 1x CDEW400 1x CDEW450 2x CDEW450 brased plate eatexcaner 1x AC250EQ-NP128 2x AC250EQ-NP128 2x AC250EQ-NP162 1x AC250EQ-NP162 Electrical specifications (1) Model EWWD Power supply Pase 3~ Freuency (Hz) 50 Voltae (V) 400 Voltae tolerance (%) ±10 Unit Nominal runnin current Maximum runnin current Recommended fuses accordin to IEC Compressor (A) (A) (L) 3x 100 3x 160 3x 200 3x 200 2x 3x 200 3x 200+3x 250 2x 3x 250 2x 3x 250 2x 3x 250 Pase 3~ Freuency (Hz) 50 Voltae (V) 400 Nominal runnin current (A) Control and fan motor Pase 1~ Freuency (Hz) 50 Voltae (V) 230 Important information reardin te refrierant used Tis product contains fluorinated reenouse ases covered by te Kyoto Protocol. Refrierant type: R134a GWP (1) value: 1300 (1) GWP = lobal warmin potential Periodical inspections for refrierant leaks may be reuired dependin on European or local leislation. Please contact your local dealer for more information. (1) Refer to te enineerin data book for te complete list of specifications. Packaed water-cooled water cillers 2

4 DESCRIPTION Te EWWD water-cooled water cillers are available in 9 standard sizes EWWD360~540 EWWD120~ Fiure - Main components 1 Compressor 17 Leavin water temperature sensor 2 Evaporator 18 Discare stopvalve 3 Condenser 19 Condensor enterin water temperature sensor 4 Switcbox 20 Diital display controller 5 Compressor switcbox 21 Emerency stop 6 Air pure condenser 22 Power supply intake 7 Water drain condenser 23 Field wirin intake 8 Care valve 24 Holes for liftin 9 Safety valve 25 Transportbeam 10 Hi pressure switc 26 Ballvalve liuid pipe 11 Drier 27 Main isolator switc (optional) 12 Cilled water in (Victaulic couplin) 28 Filter 13 Cilled water out (Victaulic couplin) 29 Counterpipe for weldin 14 Condenser water out 30 Flowswitc 15 Condenser water in 16 Enterin water temperature sensor Reuired space around te unit for service 3 Packaed water-cooled water cillers

5 (*) Function of te main components A B1P B B3P C B1P D B4P E B6P F H R9T R10T G J Y11S Y21S S1PH S14PH S2PH S15PH M1C M2C Y15S 9 5 (*) R3T 4 4 Y25S B2P Y16S 3 3 Y26S B5P R4T R6T R5T S3T S4T Fiure - Functional diaram EWWD120~280 (**) (***) EWWD360~540 1 Evaporator 12 Expansion valve (*) See A~E 2 Condenser 13 Suction stop valve (option) (**) - Standard 3 Water out 14 Electronic expansion valve (see F and G) only for EWWD120~180,360 4 Water in 15 Flowswitc - Dual pressure relief valve (OP03) (see H and J) only for EWWD240~280) 5 Drier 16 Filter 6 Discare stop valve (***) - Standard 7 Care valve A only for EWWD120~180 (see F and G) only for EWWD360 and Stop valve B only for EWWD240~280, EWWD440~540 - Dual pressure relief valve (OP03) (see H and J) only for EWWD500~540) 9 Strainer C only for EWWD Sitlass D only for EWWD Safety valve E only for EWWD500~540 As te refrierant circulates trou te unit, canes in its state or condition occur. Tese canes are caused by te followin main components: Compressor Te compressor (M*C) acts as a pump and circulates te refrierant in te refrieration circuit. It compresses te refrierant vapour comin from te evaporator at te pressure at wic it can easily be liuefied in te condenser. Condenser Te function of te condenser is to cane te state of te refrierant from aseous to liuid. Te eat ained by te as in te evaporator is discared trou te condenser to te ambient air, and te vapour condenses to liuid. Filter / drier Te filter installed beind te condenser removes small particles from te refrierant to prevent blockae of te tubes. Te drier takes water out of te system. Expansion valve Te liuid refrierant comin from te condenser enters te evaporator via an expansion valve. Te expansion valve brins te liuid refrierant to a pressure at wic it can easily be evaporated in te evaporator. Evaporator Te main function of te evaporator is to take eat from te water tat flows trou it. Tis is done by turnin te liuid refrierant, comin from te condenser, into aseous refrierant. Water in/outlet connection Te water inlet and outlet connection allow an easy connection of te unit to te water circuit of te air andlin unit or industrial euipment. Flowswitc Te flowswitc protects te evaporator of te unit aainst freezin wen tere is no waterflow or wen te waterflow is too low. Waterfilter Te waterfilter protects te evaporator aainst cloin. Packaed water-cooled water cillers 4

6 Safety devices Te unit is euipped wit tree kinds of safety devices: 1 General safety devices General safety devices sut down all circuits and stop te wole unit. For tis reason te unit as to be manually put on aain after a eneral safety occurred. 2 Circuit safety devices Circuit safety devices sut down te circuit tey protect. For tis reason te unit does not need to be manually put on aain after a circuit safety occurred. 3 Part safety devices Part safety devices sut down te part tey protect. An overview of all safety devices is iven below. Overcurrent relay Te overcurrent relays (K*S) are located in te switcbox of te unit and protect te compressor motors in case of overload, pase failure or too low voltae. Te relays are factory-set and may not be adjusted. Wen activated, tey must be reset manually, followed by a reset of te controller. Compressor termal protectors Te compressor motors are euipped wit termal protectors (Q*M). Te protectors are activated wen te compressor motor temperature becomes too i. Wen temperature returns to normal, te protectors reset automatically, but te controller needs to be reset manually. Flowswitc Te unit is protected by a flowswitc (S8L). Wen te water flow becomes lower tan te minimum allowed water flow, te flowswitc suts down te unit. Wen te water flow becomes normal, te protection resets automatically but te controller still needs to be reset manually. Discare termal protectors Te unit is euipped wit discare termal protectors (S*T). Te protectors are activated wen te temperature of te refrierant leavin te compressor becomes too i. Wen te temperature returns to normal te protector resets automatically and te controller needs to be reset manually. Freeze-up protection Te freeze-up protection prevents te water in te evaporator from freezin durin operation. Wen te outlet water temperature is too low, te controller suts down te circuit. Wen te outlet water temperature returns to normal, te unit can start up aain. Wen freeze-up protection occurs several times in a certain period, te freeze-up alarm will be activated and te unit will be sut down. Te cause of freezin up sould be investiated and after outlet water temperature as risen enou, te alarm indicator on te controller needs to be reset manually. Low pressure safety Wen te suction pressure of a circuit is too low, te circuit controller suts down te circuit. Wen te pressure returns to normal, te safety device can be reset on te controller. Pressure relief safety valve Te safety valve is activated wen te pressure in te refrierant circuit becomes too i. If tis occurs, sut down te unit and contact your local dealer. Hi pressure switc Eac circuit is protected by two i pressure switces (S*PH) wic measure te condenser pressure (pressure at te outlet of te compressor). Tey are installed in te compressor ousin of te circuit. Wen te pressure becomes too i, te pressure switces are activated and te circuit stops. Te switces are factory-set and may not be adjusted. Wen activated, tey must be reset by means of a screwdriver. Te controller still needs to be reset. Reverse pase protector Te reverse pase protectors (R*P) prevent te screw compressors from runnin in te wron direction. If te compressors do not start, two pases of te power supply must be inverted. Internal wirin - Parts table Refer to te internal wirin diaram supplied wit te unit. Te abbreviations used are listed below: A1,A2...**... Current transfo circuit 1, circuit 2 A1P... PCB-controller A2P,A3P... PCB-EEV driver circuit 1, circuit 2 A11P... Expansion board controller (only for EWWD360~540) B1P,B4P... Low pressure transmitter for circuit 1, circuit 2 B2P,B5P... Hi pressure transmitter for circuit 1, circuit 2 B3P,B6P... Low pressure transmitter EEV for circuit 1 (A2P), circuit 2 (A3P) C11,C21... Capacitor for capacity control (only for EWWD360~540) E1HC,E2HC... Crankcase eater compressor circuit 1, circuit 2 F1R,F2R... Fuses for reverse pase protector circuit 1, circuit 2 F1U~F3U...#... Main fuses F6B,F11B... Fuse for primary of TR1 F7B... Fuse for secondary of TR1 F8B... Fuse for EEV driver F8U... Sure proof fuse for A1P F9B... Sure proof fuse for secondary of TR2 F10B,F14B... Autofuse for secondary of TR2 F10S,F11S... Circuit breakers wit fuses for circuit 1, circuit 2 (only for EWWD360~540) F11U~F13U... Main fuses (only for EWWD360~540) F21U~F23U... Main fuses (only for EWWD360~540) H1P...*... Indication lamp eneral operation H2P...*... Indication lamp alarm H3P...*... Indication lamp operation compressor 1 H4P...*... Indication lamp operation compressor 2 (only for EWWD360~540) H4P,H5P...*... Caneable output (only for EWWD120~280) H5P,H6P...*... Caneable output (only for EWWD360~540) J1... Power supply J2,J3,J6,J20... Analo input J4... Analo output J5,J7,J8,J19... Diital input J11... RS485 connection J12~J18,J21,J22... Diital output K1A,K4A... Auxiliary relay for safeties circuit 1, circuit 2 K1M,K4M... Linecontactor for circuit 1, circuit 2 K2A,K5A... Auxiliary relay compressor termal protector circuit 1, circuit 2 K2M,K5M... Deltacontactor for circuit 1, circuit 2 K3A,K6A... Auxiliary relay for discare termal protector circuit 1, circuit 2 K3M,K6M... Starcontactor for circuit 1, circuit 2 K7A,K8A... Auxiliary relay for i pressure circuit 1, circuit 2 K17S,K18S... Overcurrent relay for circuit 1, circuit 2 L1,L2,L3... Main supply terminals M1C,M2C... Compressor motor circuit 1, circuit 2 5 Packaed water-cooled water cillers

7 M1S,M2S... Stepless capacity control for compressor circuit 1, circuit 2 PE... Main eart terminal Q1M,Q2M... Termal protector compressor motor R1,R2... Auxiliary resistance for feedback R1F,R2F... Feedback resistance for compressor circuit 1, circuit 2 R1P,R2P... Reverse pase protector R3T... Sensor for evaporator inlet water temperature R4T,R6T... Sensor for evaporator outlet water temperature circuit 1, circuit 2 R5T... Sensor for condensor inlet water temperature R7T... Mixed outlet water temperature sensor (only for EWWD360~540) R8T... Sensor for evaporator outlet water in a DICN system R9T,R10T... Temperature sensor EEV for circuit 1 (A2P), circuit 2 (A3P) S1PH,S2PH... Hi pressure switc circuit 1, circuit 2 S3T,S4T... Discare termal protector circuit 1, circuit 2 S5E... Emerency stop pus button S6S...*... Caneable switc for remote function (e.. remote start/stop) S8L,S10L... Flowswict circuit 1, circuit 2 S9L,S11L...#... Contact tat closes if te pump is workin S10S...*... Caneable switc for remote function (e.. dual setpoint) S11S...*... Caneable switc for remote function (e.. enable/disable capacity limitation 1) S12S...*... Caneable switc for remote function (e.. enable/disable capacity limitation 2) S13S...##... Main isolator switc S14PH,S15PH... Hi pressure switc TC01,TC02... Optocoupler (analo to diital sinal) (only for EWWD360~540) TR1... Transfo control circuit TR2... Transfo supply controller + diital inputs V1...**... V-meter V1F... Filter for EEV V2C~V5C... Ferrite for EEV X2A~X4A... Connector 24, 20, 16 pole to main switcbox (only for EWWD360~540) Y1E,Y2E... Electronic expantion valve circuit 1, circuit 2 Y11S,Y21S... 12% capacity step for compressor circuit 1, circuit 2 Y15S,Y25S... Liuid injection valve of te compressor circuit 1, circuit 2 Y16S,Y26S... Liuid line solenoid valve circuit 1, circuit 2 Not included wit standard unit Not possible as option Possible as option Obliatory # ## Not obliatory * ** BEFORE OPERATION Cecks before initial start-up Make sure tat te circuit breaker on te power supply panel of te unit is switced off. After te installation of te unit, ceck te followin before switcin on te circuit breaker: 1 Field wirin Make sure tat te field wirin between te local supply panel and te unit as been carried out accordin to te instructions described in te installation manual, accordin to te wirin diarams and accordin to European and national reulations. 2 Additional pump interlock contact Additional pump interlock contact (S9L) must be provided. Make sure tat te contact as been installed between te appropriate terminals (refer to te wirin diaram supplied wit te unit). Te contact must be a normal open contact. 3 Fuses or protection devices Ceck tat te fuses or te locally installed protection devices are of te size and type specified in te installation manual. Make sure tat neiter a fuse nor a protection device as been bypassed. 4 Eart wirin Make sure tat te eart wires ave been connected properly and tat te eart terminals are titened. 5 Internal wirin Visually ceck te switc box on loose connections or damaed electrical components. 6 Fixation Ceck tat te unit is properly fixed, to avoid abnormal noises and vibrations wen startin up te unit. 7 Damaed euipment Ceck te inside of te unit on damaed components or sueezed pipes. 8 Refrierant leak Ceck te inside of te unit on refrierant leakae. If tere is a refrierant leak, call your local dealer. 9 Oil leak Ceck te compressor on oil leakae. If tere is an oil leak, call your local dealer. 10 Stop valves Open te liuid line, discare and suction (if provided) stopvalves completely. 11 Power supply voltae Ceck te power supply voltae on te local supply panel. Te voltae must correspond to te voltae on te identification label of te unit. 12 Water connection Ceck water pipin system and circulatin pumps. Ceck if te filter kit tat was supplied wit te unit separately is installed correctly in front of te evaporator water inlet. 13 Water sensors Ceck tat all te water sensors are correctly fixed into te pipes connected to te evaporator. Packaed water-cooled water cillers 6

8 Water supply Fill te water pipin, takin into account te minimum water volume reuired by te unit. Refer to te "installation manual". Make sure tat te water is of te uality as mentioned in te installation manual. Pure te air at te i points of te system and ceck te operation of te circulation pump and te flowswitc. Power supply connection and crankcase eatin In order to avoid compressor damae, it is necessary to switc on te crankcase eater for at least 8 ours before startin te compressor after a lon period of standstill. To switc on te crankcase eater proceed as follows: 1 Switc on te circuit breaker on te local supply panel. Make sure tat te unit is "OFF". 2 Te crankcase eater is switced on automatically. 3 Ceck te supply voltae on te supply terminals L1, L2, L3, by means of a voltmeter. Te voltae must correspond to te voltae indicated on te identification label of te unit. If te voltmeter reads values wic are not witin te ranes specified in te tecnical data, ceck te field wirin and replace te supply cables if necessary. 4 Ceck te LED on te reverse pase protectors. If it lits up, te pase order is correct. If not, switc off te circuit breaker and call a licensed electrician to connect te wires of te power supply cable in te correct pase order. 5 Ceck if te crankcaseeaters are warmin up. After 8 ours, te unit is ready for operation. General recommendations Before switcin on te unit, read followin recommendations: 1 Wen te complete installation and all necessary settins ave been carried out, close all front panels of te unit. OPERATION Te EWWD120~540 units are euipped wit a diital controller offerin a user-friendly way to set up, use and maintain te unit. Tis part of te manual as a task-oriented, modular structure. Apart from te first section, wic ives a brief description of te controller itself, eac section or subsection deals wit a specific task you can perform wit te unit. Dependin on te model tere are one or two coolin circuits in te system. Te models EWWD360~540 exist out of two circuits, wereas te models EWWD120~280 only ave one circuit. Tese circuits are enerally named C1 and C2 in te followin descriptions. So all information about circuit 2 ( ) is not applicable for EWWD120~280 models. Diital controller User interface Te diital controller consists of an alpanumeric display, labelled keys wic you can press and a number of LEDs. Diital built-in controller Fiure - Diital built-in controller Keys: f o p key, to enter te main menu key, to start up or to sut down te unit. key, to enter te safeties menu or to reset an alarm. keys, to scroll up or down trou te screens of a menu (only in case W, X or C appears) or to raise, respectively lower a settin. key, to confirm a selection or a settin. Diital remote controller (to be ordered separately) 2 Te service panels of te switc boxes may only be opened by a licensed electrician for maintenance purposes. 3 To prevent te evaporator from freezin and to avoid damae to te LCD displays of te diital controller, never switc off te power supply durin winter. Leibility of te alpanumeric display may decrease at low temperatures. Fiure - Diital controller o p k u s z e r t y key, to start up or to sut down te unit. key, to enter te safeties menu or to reset an alarm. key, to scroll trou te screens of a menu (only in case W, X or C appears) or to raise, respectively lower a settin. key, to confirm a selection or a settin. key, to enter te readout menu. key, to enter te setpoints menu. key, to enter te user settins menu. key, to enter te timers menu. key, to enter te istory menu. key, to enter te info menu. key, to enter te input/output status menu. 7 Packaed water-cooled water cillers

9 a d i key, to enter te user password menu. key, to enter te DICN menu, also referred to as network menu (optional). key, to enter te coolin/eatin menu. How to enter a menu Diital built-in controller Scroll trou te main menu usin te and keys to move te mark in front of te menu of your coice. Pus te key to enter te selected menu. Diital remote controller Press te correspondin menu key indicated in "User interface", pararap "Diital remote controller" on pae 7 Connection to te unit For a remote controller a cable lent of up to 1000 metres (EWWD120~280) and 300 metres (EWWD360~540) between te diital controller and te unit is allowed. Tis ives te opportunity to control te unit from a considerable distance. Refer to "Cable for diital controller" in te installation manual for cable specifications. For units in a DICN confiuration, te diital controllers of te units can be installed remotely at a distance of up to 50 metres by usin a 6-ray telepone cable wit a maximum cable resistance of 0.1 Ω/m. Workin wit te unit Tis capter deals wit te everyday usae of te unit. Here, you will find ow to perform routine tasks, suc as: "Settin te lanuae" on pae 8 "Switcin te unit on" on pae 8 and "Switcin te unit off" on pae 8 "Consultin actual operational information" on pae 9 "Selectin coolin or eatin operation" on pae 9 "Adjustin te temperature setpoint" on pae 10 "Resettin te unit" on pae 10 Settin te lanuae Temperature readout tolerance: ±1 C. Leibility of te alpanumeric display may decrease in direct sunlit. Switcin te unit on 1 Press te J key on te controller. Dependin on te settin of te remote ON/OFF control parameter (refer to te service manual), te followin conditions may occur. Wen te remote ON/OFF control parameter is set to NO, te LED inside te J key lits up and an initialization cycle is started. Once all te timers ave reaced zero, te unit starts up. Wen te remote ON/OFF control parameter is set to YES, te followin table applies: Local key Remote switc Unit o LED ON ON ON ON ON OFF OFF Flasin OFF ON OFF OFF OFF OFF OFF OFF 2 If te water ciller does not start after a few minutes, refer to "Troublesootin" on pae 17. Switcin te unit off If te remote on/off control parameter is set to No: Press te o key on te controller. Te LED inside te o key oes out. If te remote on/off control parameter is set to Yes: Press te o key on te controller or switc te unit off usin te remote on/off switc. Te LED inside te o key oes out in te first case and starts blinkin in te second case. In case of emerency, switc off te unit by pusin te emerency stopbutton. Also consult "Definin te scedule timer" on pae 14 and Customization in te service menu capter Settin of te caneable inputs and outputs in te installation manual. Switcin units ON/OFF in a DICN system If te o key is pressed on a unit wit status or, all oter units wit status or will be ON or OFF. If te o key is pressed on a unit wit status, only tis unit will be ON or OFF. Wen a remote ON/OFF switc is confiured, te remote ON/OFF contact for all units wit status or of a DICN network is te contact connected to te master unit. For units wit status, te remote contact is te contact connected to tis unit. If desired, te operatin lanuae can be caned to any of te followin lanuaes: Enlis, German, Frenc, Spanis or Italian. 1 Enter te usersettins menu. Refer to capter "How to enter a menu" on pae 8 2 Go to te appropriate screen of te usersettins menu usin te and keys. 3 Press to cane te operatin lanuae until te desired lanuae is active. If te user wants 1 unit to operate on is command only, tis unit is to be set to. Refer to "Workin wit te unit" on pae 8. It is recommended not to select te master unit for tis purpose. Even if te status of te master is set to, it will still be te contact connected to te master wic will switc ON/OFF te oter units in or mode. It would terefore never be possible to only switc te master unit OFF remotely. Switcin OFF te master unit only, sould in tis case be done by te local ON/OFF key on te master unit. Packaed water-cooled water cillers 8

10 Consultin actual operational information 1 Enter te readout menu. Refer to te capter "How to enter a menu" on pae 8. Te controller automatically sows te first screen of te readout menu wic provides te followin information: or or : manual/ automatic control mode operation. If te automatic control mode is selected, te controller will indicate te active temperature setpoint. Dependin on te status of te remote contact, setpoint one or setpoint two is active. : actual inlet water temperature. : actual outlet water temperature (EWWD40~100) or mixed outlet water temperature (EWWD120~200). : actual condensor inlet water temperature. 2 Press te key to enter te next screen of te readout menu. Tis screen is only available for double circuit units. Tis screen of te readout menu provides te followin information on te evaporator: : actual outlet water temperature of circuit 1. : actual outlet water temperature of circuit 2. 3 Press te key to enter te next screen of te readout menu. Tis screen of te readout menu provides te followin information on te condenser: or : manual/automatic control mode operation. If te automatic control mode is selected, te controller will indicate te active temperature setpoint. Dependin on te status of te remote contact, setpoint one or setpoint two is active. : actual inlet water temperature. 4 Press te key to enter te next screen of te readout menu. Te screen of te readout menu provides information concernin te status of te different circuits. : actual status of circuit 1. : actual status of circuit 2. Wen te circuit is ON, te followin status information may appear. : 40% - tis percentae refers to te activated capacity of tat specific circuit. For a DICN system, te, values are te values of te individual units, not of te system. Temperatures of te system can be consulted in te first screen of te network menu. Wen a circuit in is in a i pressure setback, te indication of capacity will be flasin. A i pressure setback is a prevention of load-up or a forced loaddown caused by a too i pressure. Wen a circuit is OFF, te followin status information may appear. : one of te circuit safety devices is activated (refer to te capter "Troublesootin" on pae 17). : te circuit is limited by a remote contact. : te actual value of one of te software timers is not zero (refer to te "Timers menu" on pae 12). te circuit is ready to start up wen extra coolin load is needed. Te four precedin OFF messaes are written down in order of priority. If one of te timers is busy and one of te safeties is active, te status information says. Te is te percentae indication of te actual coolin or eatin capacity of te unit. 5 Press te key to enter te next screen of te readout menu. Te screen of te readout menu provides information concernin te pressures of te first circuit. : i pressure of te refrierant in circuit 1, respectively circuit 2. Te first number stands for te pressure in bar, te second number stands for te saturation temperature in derees Celsius. : low pressure of te refrierant in circuit 1, respectively circuit 2. Te first number stands for te pressure in bar, te second number stands for te saturation temperature in derees Celsius. 6 Press te key to enter te next screen of te readout menu. (Only for EWWD360~540.) Te screen of te readout menu provides information concernin te pressures of te second circuit. 7 Press te key to enter te next screen of te readout menu. Tis menu is available if voltae and current transmitters are installed. Tis readout menu provides information concernin te voltae and te compressor current. 8 Press te key to enter te next screen of te readout menu. To consult actual operational information about te total runnin ours of te compressors. 9 Press te key to return to te oter readout menus. Selectin coolin or eatin operation Te "coolin/eatin" menu allows te user to set te unit in coolin, eatin or double termostat operation. Te menu provides information concernin te selected operation mode. : coolin mode. Te two setpoints for bot inlet water temperature control of evaporator and outlet water temperature control of evaporator can be used. : eatin mode. Te two setpoints for inlet water temperature control of condenser can be used. : double termostat mode. Te two setpoints for bot inlet water temperature control of evaporator and of condenser can be used. If double termostat is selected, a load-up of termostat steps is performed in case te evaporator and te condenser inlet water termostat indicate a load-up. A load-down of termostat steps is performed in case te evaporator or te condenser inlet water termostat indicate a load-down. To define coolin/eatin operation, proceed as follows: 1 Enter te coolin/eatin menu. If te controller is already in te coolin/eatin menu, position te cursor in te upper left corner of te actual screen usin te key. 2 Position te cursor beind usin te key. 3 Select te appropriate settin usin te and keys. 4 Press to confirm te selection. Te cursor returns to te upper left corner of te screen. Wen "coolin", "eatin" or "double termostat" is selected on a unit in a DICN system, tis mode is transferred to all oter units. 9 Packaed water-cooled water cillers

11 Adjustin te temperature setpoint Te unit provides definition and selection of four or two independent temperature setpoints. In coolin operation, two setpoints are reserved for inlet control, te oter two are reserved for outlet control. : inlet water temperature of evaporator, setpoint 1, : inlet water temperature of evaporator, setpoint 2. : outlet water temperature of evaporator, setpoint 1, : outlet water temperature of evaporator, setpoint 2. In eatin operation, two setpoints are reserved for inlet control. : inlet water temperature of condenser, setpoint 1, : inlet water temperature of condenser, setpoint 2. In double termostat operation, two setpoints are reserved for inlet control of te evaporator and two oters are reserved for inlet control of te condenser. : inlet water temperature of evaporator, setpoint 1, : inlet water temperature of evaporator, setpoint 2. : inlet water temperature of condenser, setpoint 1, : inlet water temperature of condenser, setpoint 2. Te selection between setpoint 1 and 2 is done by a remote dual setpoint switc (to be installed by te customer). Te actual active setpoint can be consulted in te readout menu. Te customer is also allowed to define a setpoint in function of an analo input. Refer to Customization in te service menu capter Settin of te caneable inputs and outputs in te installation manual If te manual control mode is selected (refer to "User settins menu" on pae 11), none of te above-mentioned setpoints will be active. To adjust a setpoint, proceed as follows: 1 Enter te setpoints menu. Refer to te capter "How to enter a menu" on pae 8. If te user password is disabled for setpoint modifications (refer to te "User settins menu" on pae 11), te controller will immediately enter te setpoints menu. If te user password is enabled for setpoint modifications, enter te correct code usin te and keys (refer to te "User password menu" on pae 13). Press to confirm te password and to enter te setpoints menu. 2 Select te setpoint to be adjusted usin te key. A setpoint is selected wen te cursor is blinkin beind te setpoint's name. Te " " sin indicates te actual active temperature setpoint. 3 Press te and keys to adjust te temperature settin. Te default, limit and step values for te coolin (evaporator) and eatin (condenser) temperature setpoints are: default value limit values (a) --> --> --> step value (a) For lycol units te lower limit of te coolin temperature setpoint can be adapted in te factory. Te followin values apply: : 5 C, 3 C, 2 C, 7 C : 2 C, 0 C, 5 C, 10 C 4 Press to save te adjusted temperature setpoint. Wen te settin as been confirmed, te cursor switces to te next setpoint. Wen te settin as been cancelled, te cursor returns to te upper left corner of te screen. 5 To adjust oter setpoints, repeat from instruction 2 onwards. Resettin te unit Wen a setpoint on a unit in a DICN system is set, tis setpoint will be transferred to all oter units. Also consult "Definin te scedule timer" on pae 14 and "Definin te display settins" on pae 14. Te units are euipped wit tree kinds of safety devices: unit safeties, circuit safeties and network safeties. Wen a unit safety occurs, all compressors are sut down. Te safeties menu will indicate wic safety is activated. Te screen of te readout menu will indicate for all circuits. Te red LED inside te p key lits up and te buzzer inside te controller is activated. Wen a circuit safety occurs, te compressor of te correspondin circuit is sut down. Te screen of te readout menu will indicate for te circuit concerned. Te red LED inside te p key lits up and te buzzer inside te controller is activated. Wen a network safety occurs in a DICN confiuration, te slaves not detected by te network will function as stand alone units. If te master is not detected by te network, all units will work as stand alone units. If a slave unit can not be found by te network, te red lit inside te p key of te master lits up and te buzzer inside te control is activated. If te master can not be found by te network, te red lit inside te p key of all te slaves lit up and te buzzer inside teir controls are activated. If te unit as been sut down due to a power failure, it will carry out an autoreset and restart automatically wen te electrical power is restored. To reset te unit, proceed as follows: 1 Press te p key to acknowlede te alarm. Te buzzer is deactivated. Te controller automatically switces to te correspondin screen of te safeties menu: unit safety or circuit safety. 2 Find te cause of sutdown and correct. Refer to "Listin activated safeties and ceckin te unit status" on pae 16 and te capter "Troublesootin" on pae 17. Wen a safety can be reset, te LED under te p key starts blinkin. 3 Press te p key to reset te safeties tat are no loner active. If reuired, enter te or te. (Refer to te installation manual Settin te password for safety reset.) Once all safety devices are disactivated and reset, te LED under te p key oes out. If one of te safeties is still active, te LED under te p key oes on aain. In tis case, return to instruction 2. 4 It will only be necessary to switc te o key on aain if a unit safety occurs. To be able to reset te circuit error several precautions ave to be taken. Refer to Resettin te alarm in te installation manual. If te user suts down te power supply in order to repair a safety, te safety will automatically be reset after power-up. Te istory information, i.e. te number of times a unit safety or a circuit safety occurred and te unit status at te moment of sutdown, can be cecked by means of te istory menu. Packaed water-cooled water cillers 10

12 Advanced features of te diital controller Tis capter ives an overview and a brief functional description of te screens provided by te different menus. In te followin capter, you will find ow you can set up and confiure te unit usin te various menu functions. All menus are directly accessible usin te correspondin key on te diital controller. Te down arrow X on te display indicates tat you can o to te next screen of te current menu usin te key. Te up arrow W on te display indicates tat you can o to te previous screen of te current menu usin te key. If C is displayed, tis indicates tat you can eiter return to te previous screen or can o to te next screen. User settins menu Te "user settins" menu, protected by te user password, allows a full customization of te units. To define te manual settins and to activate or deactivate manual control mode. To define te termostat settins. Readout menu To consult actual operational information about te control mode, te inlet and outlet water temperature of te evaporator and inlet water temperature of te condenser. Note tat for a DICN system, te and values are te values of te individual units, not of te system. Temperatures of te system can be consulted in te first screen of te network menu. To define te lead-la mode of bot circuits (only for EWWD360~540). To define te capacity limitations. (first screen) To define te capacity limitations. (second screen) To consult information about te outlet water temperature of te evaporator of circuit 1 and 2 (only for EWWD360~540). To consult information about te unit status and te termostat step. To define te pump control settins. To define te scedule timer. To consult information about te pressures of circuit 1. To consult information about te pressures of circuit 2 (only for EWWD360~540). To define te dual evaporator pump. Setpoints menu To consult actual operational information about te total runnin ours of te compressors and te number of compressor starts. To consult actual operational information about te total runnin ours of te compressors in coolin mode and in eatin mode. To define te display settins (first screen). To define te display settins (second screen). To define te number of slaves for a master unit. Tis menu can only be accessed at te "master" unit! Dependin upon te settins in te user settins menu and on te selected coolin/eatin operation mode, te "setpoints" menu can eiter be entered directly or by means of te user password. To define te temperature setpoints. Te controller displays te name of te unit:,.... Tis name is automatically assined dependin on te set ardware address. Refer to "Settin te adresses" in "Connection and setup of a DICN system" in te installation manual. To define weter or not a password is needed to enter te setpoints menu. To enter te service menu (only a ualified installer is allowed to access tis menu). 11 Packaed water-cooled water cillers

13 Timers menu To ceck te actual value of te eneral software timers. To ceck te actual value of te compressor timer. (first screen) To ceck wic were te pressures of circuit 2 at te moment of sutdown. To ceck wic were te total amount of runnin ours of te compressors and te ambient temperature at te moment of sutdown. Safeties menu To ceck te actual value of te compressor timers. (second screen) To ceck te actual value of te compressor startup timers and te stop timers. History menu Te "istory" menu contains all te information concernin te latest sutdowns. Te structure of tose menus is identical to te structure of te safeties menu. Wenever a failure is solved and te operator performs a reset, te concernin data from te safeties menu is copied into te istory menu. Additionally te number of safeties tat already occured, can be consulted on te first line of te istory screens. Info menu Te "safeties" menu provides useful information for trouble sootin purposes. Te followin screens contain basic information. To consult information about te unit safety wic caused te sutdown. To consult information about te circuit 1 safety wic caused te sutdown. To consult information about te circuit 2 safety wic caused te sutdown. To consult information about te network safety wic caused te sutdown. Input/output menu To consult time and date information. To consult additional information about te unit suc as te unit type and te refrierant used. To consult information about te controller's software version. To consult information about te PCB. To consult information about te dual pump wic caused te sutdown. Alon wit te basic information, more detailed information screens can be consulted wile te safety menu is active. Press te key. Screens "similar" to te followin will appear. To ceck te time and control mode at te moment of te unit sutdown. Te "input/output" menu ives te status of all te diital inputs and te relay outputs of te unit. To ceck weter or not te emerency stop device is active and if tere's any water flow to te evaporator. To ceck te status of te i pressure switc, te reverse pase protector and overcurrent relay for circuit 1. To ceck wic were te evaporator and condenser inlet water temperature and te evaporator outlet water temperature. To ceck weter or not te discare termal protector or te compressor termal protector are activated for circuit 1. To ceck wic was te evaporator outlet water temperature of te circuit at te moment of sutdown. To ceck te status of te i pressure switc, te reverse pase protector and te overcurrent relay for circuit 2 (only for EWWD360~540). To ceck wic was te status of te compressors at te moment of sutdown. To ceck weter or not te discare termal protector or te compressor termal protector are activated for circuit 2 (only for EWWD360~540). To ceck wic were te pressures of circuit 1 at te moment of sutdown. Packaed water-cooled water cillers 12

14 User password menu Coolin/eatin menu To ceck te status of te caneable diital inputs. Note tat for a unit in a DICN system, te inputs apply to tis unit. It will be te remote input on te master unit owever, tat will be determinin for te operation of te unit. To ceck te status of te power relays of circuit 1. To ceck te status of te power relays of circuit 2 (only for EWWD360~540). To ceck te capacity mode and feedback of circuit 1. To ceck te capacity mode and feedback of circuit 2 (only for EWWD360~540). To ceck te status of te pump, te alarm and te evaporator eater voltae free contacts. To ceck te status of te caneable relay output. To cane te user password. To select coolin or eatin mode. Tasks of te user settins menu Enterin te user settins menu Te user settins menu is protected by te user password, a 4-diit number between and. 1 Enter te (Refer to te capter "How to enter a menu" on pae 8). Te controller will reuest te password. 2 Enter te correct password usin te and keys. 3 Press to confirm te password and to enter te user settins menu. Te controller automatically enters te first screen of te user settins menu. To define settins of a certain function: 1 Go to te appropriate screen of te usersettins menu usin te and keys. 2 Position te cursor beind te parameter to be modified usin te key. 3 Select te appropriate settin usin te and keys. 4 Press to confirm te selection. Wen te selection as been confirmed, te cursor switces to te next parameter wic can now be modified. 5 Repeat from instruction 2 onwards to modify te oter parameters. Definin and activatin te control mode Te unit is euipped wit a termostat wic controls te coolin capacity of te unit. Tree different control modes exist: manual control mode: te operator controls te capacity imself -, (capacitystep of circuit 1, 2 in manual mode): 0%, 30%~100%. inlet control mode: uses te evaporator and/or condenser enterin water temperature to control te capacity of te unit - outlet control mode: uses te evaporator leavin water temperature to control te capacity of te unit - Network menu Te "network" menu provides useful information reardin te network. To consult te temperature setpoint, te common enterin water temperature (enterin water temperature of te master unit) and te common leavin water temperature (only displayed wen L mode is set and te optional common leavin water sensor (R8T) is installed). Refer to "Definin and activatin te control mode" on pae 13. To activate manual control mode, select as present mode. To deactivate te manual control mode, select or as present mode. For units in a DICN confiuration: Wen canin te control mode on one of te units, it is automatically transferred to all oter units. Manual control mode owever can only be selected on units wit status. Te status screen of te network menu sows te condition of te master unit ( ) and slave units (... ). 13 Packaed water-cooled water cillers

15 Definin te termostat settins Wen automatic control mode is selected, te unit uses a termostat to control te coolin or eatin capacity. However, te termostat parameters are not fixed and can be modified via te screen of te user settins menu. Te default, limit and step values for te termostat parameters are sown in "Annex I" on pae 21. If caned on one of te units in a DICN confiuration, tis settin is transferred to all oter units in te network. A functional diaram sowin te termostat parameters can be found in "Annex I" on pae 21. Definin te lead-la mode (only for EWWD360~540) Te lead/la mode determines wic of bot circuits starts up first in case of a capacity demand. Te lead-la parameters are: Automatic: te controller decides weter circuit 1 or circuit 2 starts up first. Manual C1>C2: circuit 1 starts up before circuit 2. If circuit 1 is deactivated due to a failure, circuit 2 will start up instead. Manual C2>C1: circuit 2 starts up before circuit 1. If circuit 2 is deactivated due to a failure, circuit 1 will start up instead. : In te automatic mode, te number of ours indicated on te display is te maximum difference between te runnin ours of bot circuits. Tis value is important for maintenance purposes. It sould be set i enou so tat bot circuits do not reuire maintenance at te same time and tat at least one circuit can remain constantly active. Te lower and upper limits are 100 and 1000 ours respectively. Te default value is 1000 ours. : If tis parameter is set on (Yes), bot circuits will try to o up in capacity alternatinly. If tis parameter is set on (No), te leadin circuit will try to o to full capacity before te lain circuit can startup. Definin te capacity limitation settins In te screen up to four possible capacity limitation settins can be confiured. A capacity limitation can be activated: : see "Definin te scedule timer" on pae 14. wen a caneable input is confiured as capacity limitation. : to activate capacity limitation 1. : te capacity limitation is not active. : capacity limitation value of circuit 1 in case of capacity limitation 1/2/3/4. Definin te pump control settins Refer to Customization in te service menu, capter Settin of te caneable diital inputs and outputs in te installation manual Te screen of te user settins menu allows te user to define te pump-leadtime and pump-latime. : used to define te time tat te pump must run before te unit (or te compressor in case is selected in a DICN confiuration) can start up. : used to define te time tat te pump keeps runnin after te unit (or te compressor in case is selected in a DICN confiuration) as been stopped. Definin te scedule timer To activate te screens of te scedule timer or oliday period, tese first need to be enabled by canin teir settin to in te appropriate screen. To de-activate te scedule timer or oliday period, teir settin needs to be reset to. (See "User settins menu" on pae 11.) Te screen of te user settins menu allows te user to define te scedule timer settins. Eac day of te week can be appointed to a roup. Te actions defined in a roup will be executed in eac day belonin to tat roup.,,,,, and : used to define to wic roup eac day of te week belons ( / / / / ). For eac of te four roups up to nine actions can be set, eac wit teir respective timin. Actions include: puttin te unit on ( ), puttin te unit off ( ), settin a setpoint (,,, ) and settin capacity limitation (,,,, ). Beside tese four roups tere is also a oliday period roup wic is set te same way as te oter roups. Up to 12 oliday periods can be entered in te screen. Durin tese periods te scedule timer will follow te settins of te oliday period roup. A functional diaram sowin te scedule timer workin can be found in "Annex II" on pae 21. Te unit always works wit last command. Tis means tat te last command iven, weter manually by te user or by te scedule timer, is always executed. Examples of command tat can be iven are switcin te unit on/off or canin a setpoint. In case of a DICN network, definin te scedule timer will only be possible trou te master unit. In case of power failure of te master unit, te slave units owever, will still operate accordin to settins of te scedule timer. Definin dual evaporator pump control Te screen of te user settins menu allows te user to define te steerin of two evaporator pumps (for tis to be possible a caneable diital output as to be confiured for a second evaporator pump in te service menu). Refer to te installation manual. : used to define wic kind of control will be used for te two evaporator pumps. Wen automatic rotation is cosen te offset on runnin ours also as to be entered. : pump 1 and pump 2 will alternate to te offset on RH. : pump 1 will always start up first. : pump 2 will always start up first. : used to define te offset in runnin ours between te two pumps. Used to switc over between pumps wen tey work in automatic rotation mode. Definin te display settins Te screens of te usersettins menu allows te user to define te coice of lanuae, time and date. : used to define te lanuae of te displayed information of te controller (on te first screen). (Pus te button repeatedly to cane te operatin lanuae). : used to define te present time (on te second screen). : used to define te present date (on te second screen). Packaed water-cooled water cillers 14