WSH manuale tecnico - installazione
Contents
1. jerky movements and do not remain under the unit Movement must be performed by qualified people with the relative me ans in compliance with safety stan dards 171 SAFETY WARNINGS The WSH chiller must be instal led by an authorised and qualified technician in compliance with the national legislation in force in the country of destination We shall not be held responsible 17 SAFETY WARNINGS AND REGULATIONS OF INSTALLATION for any damage whatsoever resul ting from the non compliance with these instructions i BEFORE STARTING ANY KIND OF WORK IT IS NECESSARY to read carefully the instructions and to perform the safety checks to re duce any risk to a minimum All the personnel in charge must know the operations and possi ble risks that may arise when all the unit installation operations begin DANGER The refrigerant circuit is under steam High temperatures are also possible The unit may only be opened by a SAT service technician or by an authorised and quali fied technician The operations in the cooling circuit can only be performed by a qualified refrigera tion technician GAS R134a The chiller is delivered with the necessary amount of refrigerant R134a for its operation It is a refrigerant without chlorine that is not harmful for the ozone layer R134a is not flam mable However all the maintenance operations must only2. 55 C gore asc aoc aec 30 C 25 C 6 5 4 3 2 1 0 234567 8 9 1011 1213141516 Evaporator water temperature At 5 C oo 6 132 eoo e ase o s0 st ase 65432 10123 45 67 8 9 1011 1213141516 Evaporator water temperature C At 5 C Condenser outlet water temperature C Condenser outlet water temperature C 9 2 HEATING CAPACITY AND INPUT POWER HEAT PUMP VERSIONS The heating capacity yielded and the input electrical power in conditions other than rated conditions are obtai ned by multiplying the rated values Pf Pa by the respective correction coeffi cients Cft Cpa The following diagram makes it pos sible to obtain the corrective coeffi cients corresponding to each curve the temperature of the hot processed water referred to is reported assu ming a difference in water temperatu re between the input and output of the condenser equal to 5 C The yields are intended as net of the defrosting cycles KEY Ct Heating capacity correction coefficient Ca Input power correction coeffi cient 9 3 FOR AT DIFFERENT FROM THE RATED VALUE For At different from 5 C to the eva porator refer to Tab 9 3 for cooling capacity and input power correction factors To account for exchanger soi ling apply the relative fouling factors tab 9 41 9 4 FOULING FACTORS The performances supplied by the table refer to the conditions of
3. s victauuic H CN 3 VICTAULIC Q M Bi WATER OUT 1911 WSH 0701 0801 0901 1101 Standard KEY EV Evaporator CN Condenser 19 2 QUIET OPERATION VERSION L 2120 19 2 1 WSH 0701 0801 0901 1101 Low noise L X E Ye WATER OUT Pui ete WATER IN 1 veu 3 VICTAULIC 3 VICTAULIC CN EV WATER IN 4 d fi SANS WATER OUT E i GC st c N _253 734 253 1240 19 1 2 WSH 1402 1602 1802 2002 2202 2502 Standard 1249 2120 1240 19 2 2 WSH 1402 1602 1802 2002 2202 2502 Low noise L 25 19 3 DESUPERHEATER VERSION D 449 250 541 LA WATER OUT WATER OUT AT ak 2 d Q Mo 2 2 GAS MALE J 2 GAS MALE WATER IN EE 7 WATER IN WATER IN WATER OU WATER IN 3 7 WATER OUT ko svlcrAULIC 3 VICTAULIC Y 3 evemuuc CN ev HE METUO i gmn A OLA kt A WATER IN WATER OUT 177 382 201 800 19 31 WSH 0701 0801 0901 1101 19 3 2 WSH 1402 1602 1802 2002 2202 2502 With desuperheater D With desuperheater D KEY EV Evaporator CN Condenser 19 4 LOW NOISE WITH DESUPERHEATER VERSION DL 2120 2120 19 41 WSH 0701_
4. To reduce the speed of wear To collect information and data and understand the unit efficiency status to prevent possible failures It is therefore essential to carry out once a year checks such as 22 1 1 Hydraulic circuit Water circuit filling Clean the water filters Checkthe flow switch if fitted Eliminate the air from the circuit Check that the water flow rate is al ways constant Check the hydraulic piping thermal valves of the system and the corre sponding terminals caution If the system uses glycol this liquid should not be drained freely becau se it is polluting It must be collected and if possible reused Use of exchanger heaters In this case the heaters must al ways be powered for the entire win ter period machine in standby ee MAINTENANCE Circuit with glycol The operation with glycol water with a glycol percentage chosen on the basis of the minimum outside tempe rature envisaged In this case due ac count must be taken of the different yields and input requirements of the chiller the scaling of the pumps and terminal yields insulation state Check the glycol percentage when present 22 1 2 Electric circuit Efficiency of safety devices Electrical power supply Electrical power consumption Electrical connections Check the conditions of electrical wi res and their insulators Checkthe compressor casing opera tion 22 1 3 Ch
5. er Useful information and warnings per il clima WSH AERMEC S PA 37040 Bevilacqua VR Italy Via Roma 44 Tel 39 0442 633111 Fax 0442 93730 39 0442 93566 www aermec com infoGaermec com SERIAL NUMBER DECLARATION OF CONFORMITY NAME TYPE Model We the undersigned declare on our own exclusive responsibility that the object in question so defined WSH CHILLER HEAT PUMP WATER TO WATER To which this declaration refers complies with the following standardised regulations CEI EN 60335 2 40 CEI EN 61000 6 1 CEI EN 61000 6 3 CEI EN 61000 6 2 CEI EN 61000 6 4 EN378 UNI EN 12735 UNI EN 14276 Safety regulation regarding electric heat pumps air conditioners and dehumidifiers Electromagnetic immunity and emission in residential environment Electromagnetic immunity and emission in industrial environment Hefrigerating system and heat pumps Safety and environmental requirements Hound weldless copper pipes for air conditioning and cooling Pressure equipment for refrigerating systems and heat pumps Thus meeting the essential requisites of the following directives LV Directive 2006 95 EC Electromagnetic Compatibility Directive 2004 108 EC Machine Directive 98 37 EC PED Directive relating to pressure equipment 97 23 EC In compliance with Directive 97 23 EC the product meets the Full quality assurance procedure module H with certificate no 06
6. A Power supply 2502 1 recovery hole 2x185 5 185 630 Earth Earth to bring to the 2802 1 recovery hole 2x185 5 185 630 it VM 27 28 211 PREPARATION FOR COMMIS SIONING CAUTION Keep in mind that commissioning by AERMEC after sales service is free of charge on request from Aermec clients or legitimate owners VALID IN ITALY ONLY Placing machines in operation must be previously agreed on the basis of the system creation times All operations electrical and hydraulic connections filling and blee ding of the air from the system must be completed before the intervention of the AERMEC assistance service Before performing the checks indica ted below make sure that the unit is disconnected from the mains using the suitable instruments 21 1 1 Electrical checks of the unit disconnected from the power supply Check that the general power supply cables are of a suitable section able to withstand the overall consumption ofthe unit and that the unit has been duly earthed Check all the electrical connections are correctly fixed and all the termi nals adequately closed 21 1 2 Electrical checks of the unit connected to the power supply The following operations must be carri ed out when the unit is powered up Useatester to check that the supply voltage value is 230V 10 or 400V 10 depending on the version Check that the wiring connected by the installer comply with the wiring layout
7. application of the water flow rate correction factor The water flow rate correction fac tor is calculated in such a way as to keep the same At that there would be without glycol NOTE To make it easier to read the graph an example is given on the next page By using the diagram below it possible to establish the percentage of glycol necessary this percentage can be cal 70 ETHYLENE GLYCOL SOLUTION culated taking into account one of the following factors On the basis of the fluid considered water or air it will be necessary to enter the graph from the right or left side from the intersection of the out side air temperature or processed water temperature straight lines and the relative curves a point is obtained through which the vertical line that will identify both the percentage of glycol and the relative corrective coefficients will have to pass 101 HOW TO READ GLYCOL CURVES The curves shown in the figure sum up a considerable guantity of data all of which is represented by a specific curve To be able to use these curves in the proper way it is necessary to make some initial considerations f you wish to calculate the percen tage of glycol on the basis of the outside air temperature it is neces sary to enter from the left hand axis and once the curve is intersected draw a vertical line which will inter cept all the other curves in its turn the points obtained from the upper curves re
8. 270 QT3664 Rev 3 issued by the notified body no 1131 CEC via Pisacane 46 Legnano MI Italy Bevilacqua 14 12 2007 Marketing Director Signature GA 1 INTENDED USE WSH AERMEC chillers have been built according to the technical standards and the recognised safety regulations These units have been designed and manufac tured for cooling and must be used ac cordingly and taking into account their performance characteristics There may still arise risks for the safety of the user or third parties or even damage to the units and other objects in case of impro per use Any use not specifically indicated in this manual is forbidden Therefore AERMEC Remember that the use of products that use electric power and water carries the compliance with some essential safety rules such as The use of this unit is not intended for people including children with any physical or mental disability or any sensory impairment nor for people lacking experience and knowledge unless they are supervised or instruc ted on the use of the unit by a person responsible for their safety Children should be supervised in order to make sure that they do not play with the unit WSH can be identified by Packaging label that includes the product identifica tion data Technical card Placed on the electronic box side sill NOTE If the identification plate or any other means to identify the product is tam pered with remov
9. 3460 3309 2502 1249 2120 3460 3407 19 WSH 0701 0801 0901 WSH 1101 WSH 1402 1602 1802 WSH 2002 2202 2502 15 WEIGHTS AND CENTRE OF MASS 2650 NOTE This chapter shows just the per centages of weight on the supports naturally the percentage of weight also identifies the presence of AVX but refer to the installa tion manual for its actual position 20 3050 20 208 x 1 7 lo Q e Gx a E 2 8 ot egi Sal 38 400 403 1844 403 3050 208 1 7 Gy g 1 A Gx 2 85 ge M Ter 3 400 603 1844 s 603 3450 20 154 PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS WSH MOD VERS WEIGHT CENTRE OF MASS PERCENTAGE DISTRIBUTION OF WEIGHTS ON SUPPORTS AVX Gx Gy 1 2 7 8 KIT 0701 p 1391 1044 400 3096 3096 20 20 96 665 0801 1443 1087 400 30 30 20 20 665 0901 2 1506 1127 400 2996 29 21 21 665 1101 ki 1946 1255 400 3196 3196 1996 19 666 1402 5 2276 1079 620 3096 3096 20 Yo 20 Yo 662 1602 d 2350 1105 620 30 30 20 20 662 1802 8 2423 1129 620 2996 29976 2196 2196 662 2002 x 2872 1273 620 3096 30 20 20 663 2202 3309 1253 620 31 31 19 19 664 2502 ki 3407 1
10. 5 16 5 16 5 16 5 16 5 16 5 BA bar 22 22 22 22 22 22 22 22 22 22 As it can be seen from the technical data tables the dimensions for the different sizes vary only in terms of depth P while height H and width L are the same for all sizes 144 DIMENSIONAL TABLES 14 DIMENSIONS NOTE Forthe position of The figure below shows only one table by way of illustration for the actual dimensions and for the num ber of fans refer to the table hydraulic connections in the diffe rent set ups 1411 WSH standard version mono circuit 3 800 141 2 WSH Low noise version mono circuit L NOTE Only the single circuit versions 0701 0801 0901 1101 are fitted with a base for move ment purposes The two circuit versions are The height refers to the low noise version L moved by means of poles sup plied as standard H c Si Ey 300 P WSH Dimensions in mm e Minimum technical spaces L H P kg 0701 8089 2120 2960 1391 0801 809 2120 2960 1443 0901 809 2120 2960 1506 1101 809 2120 3360 1946 1402 1249 2120 3060 2276 1602 1249 2120 3060 2350 1802 1249 2120 3060 2423 2002 1249 2120 3460 2872 2202 1249 2120
11. 95 0 Sound pressure dB A 540 54 0 54 0 60 0 570 570 570 61 0 63 0 63 0 DIMENSIONS outdoor installation Height 3 mm 2050 2050 2050 2050 2050 2050 2050 2050 2050 2050 Height L mm 2120 2120 2120 2120 2120 2120 2120 2120 2120 2120 Width mm 809 809 809 809 1249 1249 1249 1249 1249 1249 Length mm 2960 2960 2960 3360 3060 3060 3060 3460 3460 3460 Weight C kg 1381 1443 1508 1946 2276 2350 2423 2872 3309 3407 Weight L kg 1622 1674 1737 2206 2542 2616 2689 3168 3605 3703 DATA STATED ACCORDING TO EN14511 2004 Heating ISO 3744 Automatic Processed water temperature 45 C Sound power The Aermec sound power value Processed water temperature 7 C Evaporator inlet water temperature 10 C Is determined on the basis of measurements Condenser inlet water temperature 30 C At 5k taken in accordance with the ISO 9614 2 At 5k Sound pressure measured 10 m away in the standard in compliance with what is required open with direction factor Q 2 according to by the EUROVENT Certification OA 8 OPERATIONAL LIMITS KEY Condenser outlet water temperature C 2 0 2 4 6 Field of use X Field of use h gt 8 10 12 14 16 www Evaporator outlet water temperature C 41 Glycol operation Standard operation 84 DESIGN DATE DIR 97 23 CE HIGH PRESSURE LOW PRESSURE SIDE SIDE
12. Maximum pressure allowable bar 22 16 5 Maximum setting allowable C 190 55 Minimum temperature allowable C 10 10 11 12 91 COOLING CAPACITY AND INPUT POWER STANDARD VERSIONS HEAT PUMP IN COOLING OPERA TION VERSIONS The cooling capacity yielded and the input electrical power in conditions other than rated conditions are obtai ned by multiplying the rated values Pf Pa by the respective correction coeffi cients Cft Cpa The following diagrams are used to obtain the correction coefficients to be used for the units in the different versions in coo ling operation next each curve the exter nal air temperature to which it refers is shown KEY Cf Cooling capacity correction coefficient Ca Input power correction coeffi cient NOTE FOR THE X VERSIONS with temperatu res below 4 C contact the company FOR AT DIFFERENT FROM 5 C to the evaporator refer to Tab 9 3 1 for cooling capacity and input power cor rection factors To account for exchan ger soiling apply the relative fouling fac tors tav 9 41 9 CORRECTIVE FACTOR 70 60 50 40 30 20 Ca 10 00 0 90 0 80 0 70 50 40 30 20 10 00 C glo 0 80 0 70 0 60 0 50 0 40 0 30
13. To check whe ther this device works correctly clo se the water intake to the condenser and observing the pressure gauge which may have been installed by the user or installer because it is not supplied by the factory in the corre sponding high pressure inlets verify whether the switch is tripped at the calibrated value CAUTION If the switch does not trip at the cali brated value immediately stop the compressor and identify the cause The alarm reset is manual and can only enabled once the pressure drops below the differential value 21 2 2 Overheating Check the level of overheating by com paring the temperature indicated with a contact thermometer placed on the compressor suction and the tempera ture shown on the pressure gauge sa turation temperature corresponding to the evaporation pressure The difference between these two temperatures gives the superheating value Optimum values are between 4 and 8 C In these units the pressure gauge is not supplied it is advisable to install it in the corresponding pressure inlet 21 2 3 Under cooling Check the level of under cooling by com paring the temperature indicated with 8 contact thermometer placed on the tube at the condenser outlet and the temperature shown on the high pres sure gauge saturation temperature corresponding to the condensation pressure The difference between these two temperatures gives the under cooling value Optimum values are bet
14. a vertical line which will intercept all the other curves in its turn the points obtai ned from the upper curves repre sent the coefficients for the cooling capacity and input power for the flow rates and the pressure drops remember that these coefficients must anyway be multiplied by the nominal value of the sizes exami ned while the lower axis advises the percentage of glycol necessary to produce water at the required temperature Remember that the initial sizes OUTSIDE AIR TEMPERATURE and PROCESSED WATER TEMPERATU RE are not directly linked to each other it will therefore not be possible to enter the curve of one of these sizes and obtain the corresponding point on the other curve FcGDpF a FcGDpF b FcGDpF c FcGDpF d FcGDpF e 1390 1310 1280 1180 1110 FcGQ PaC 1090 1000 FcGPf PdC 0 990 0 975 wt Glycol Yo 10 15 20 e5 30 35 40 45 50 55 15 16 WSH units are supplied WITHOUT the hydraulic parallel therefore the pres sure drop tables included herein refer to evaporators and condensers 114 EVAPORATOR PRESSURE DROPS IN COOLING OPERA TION The pressure drops in the diagram refer to the aver
15. after a fire before starting up the machine again contact an authorised Assistance Centre e3 DISPOSAL Note The disposal of refrigerant gas the glycol water that may be present and any other material or substan ce must be carried out by qualified personnel and in compliance with the legislation in force in order to avoid causing damages to things or people as well as polluting the surrounding area When the unit is pending disposal it can also be stored in the open as expo sure to the elements and temperature changes do not cause harmful effects for the environment as long as the unit electrical cooling and hydraulic circuits 24 IMPROPER USES are closed and in good conditions 2311 Dismantling and disposal In the dismantling phase the fan the motor and the coil if operating could be taken from the specialised centres for possible reuse NOTE For the dismantling disposal all the materials must be sent to the autho rised centres in compliance with the national regulations in force For fur ther information on discharge con tact the head office The machine is fitted with safety valves that in the case of excessive pressure can discharge hot gases into the atmo sphere Wind earthquakes and other natural phenomena of exceptional intensity have not been taken into account If the unit is used in an aggressive at mosphere or with aggressive water consult the company headquarters CAUT
16. clean pipes with fouling factor 1 For values different from the fouling factor multi ply the values in the performance table by the coefficients reported 50 40 e C o 30 55 E PO 20 9078 ASCE 40 o6 t Ca a 5 00 35 g W 080 30 C 3 o 0 80 S 25 C 9 0 70 8 S 0 60 O 6 5 4 3 2 1 0 2 3 4567 8 910111213141516 Evaporator water temperature At 5 C 50 E av 40 sce 9 s 2 oO 20 oe 2 Ct 110 t E oO 00 3 W 0 80 5 8 0 80 5 e 070 5 S 0 60 oO 65432 10123 4567 8 81011 1213 1415 16 Evaporator water temperature At 5 C 9 3 1 Correction factors for At different from the Chiller Rated value 3 5 8 10 Cooling capacity correction factors 0 99 1 1 02 1 03 Input power correction factors 0 99 1 1 01 1 02 9 4 1 Fouling factors k m2 W 0 00005 0 0001 0 0002 Cooling capacity correction factors 1 0 98 0 94 Input power correction factors 1 0 98 0 95 18 The cooling capacity and input power correction factors take into account the presence of glycol and the diffe rent evaporation temperature The pressure drop correction fac tor already takes into account the different flow rate deriving from the
17. in accordance with the ISO 9614 2 standard in compliance with what is required by the Eurovent certification 12 2 SOUND PRESSURE Sound pressure in the open on reflec tive plane directional factor Q 2 10 m away from the unit external surfa ce in accordance with ISO 3744 box method KEY Operating conditions Evaporator outlet water 7 C Condenser inlet water 30 C NOTE The data of the versions are calculated in cooling mode 12 SOUND DATA Total sound levels Octave band Hz Pow Pressure 125 250 500 1000 2000 4000 8000 O lasa dB A dB RN MORS coustic power by central band frequency dB 0701 86 54 70 672 819 812 829 782 717 82 0801 86 54 70 66 9 808 82 7 835 769 702 614 0901 86 54 70 761 814 822 831 78 8 68 573 1101 92 60 76 62 9 823 913 886 801 675 566 1402 89 57 73 70 2 849 842 859 812 747 65 1602 89 57 73 69 9 83 8 857 885 799 73 2 644 1802 89 57 73 791 844 852 861 81 8 71 60 3 2002 93 61 Zy Ass Il sea EST sly Seis ele isis 2202 95 63 79 65 9 853 943 916 831 70 5 59 6 2502 95 63 79 69 6 862 901 93 8 85 6 722 608 Total sound levels Octave band Hz W Pow Pressure 125 250 500 1000 2000 4000 800
18. starting current All the units are tested and delivered complete with refrigerant load and oil it will be necessary only to make hydraulic and electrical connections on site All units have a protection class of IP20 41 VERSIONS AVAILABLE HEAT PUMP H CAUTION Before each start up operation of the unit or at the end of each extended pause period it is extremely important to preheat the oil in the compressor ca sing by means of the suitable electric heaters during at least 8 hours The casing heating element is automatically powered when the unit pauses so that the unit is kept powered up 4 2 AVAILABLE VERSIONS With the aid of the configurator it is possible to set up and then order the chiller that best suits the needs of users or whoever stands in for them 4 3 CONFIGURATOR 1 2 3 4 5 6 7 8 9 10 11 12 13 WSH 2502 d D k H e Field Code 1 2 3 WSH 4 5 6 7 Size 0701 0801 0801 1101 1402 1602 1802 2002 2202 2502 8 Field of use a Standard with processed water above 4 C X With electronic thermostatic valve that permits Chiller water up to 6 C Control of the cooling capacity with continual modulation 25 100 9 Model E Standard 10 Heat recovery units T Without recovery units D Desuperheater 11 Version Standard L Quiet operation 12 Heat exchangers x Standard according to PED 14 Power supply o C CO 43 nm 3 400V 50 Hz w
19. 0 SS AN us Acoustic power by central band frequency dB 10m 1m 0701 78 46 62 63 0 813 735 740 667 575 491 0801 78 46 B2 63 4 801 749 748 654 563 48 5 0901 78 46 62 728 804 744 746 671 53 8 444 1101 84 52 68 586 816 834 804 683 536 43 7 1402 81 49 85 66 0 843 766 769 69 7 605 521 1602 81 49 65 66 4 830 779 778 689 592 515 1802 81 49 65 758 834 773 778 701 568 474 2002 85 53 89 56 9 754 806 814 718 577 459 2202 87 55 71 616 846 864 834 713 566 46 7 2502 87 55 al 66 7 85 7 821 85 6 73 9 58 2 478 Total sound levels Octave band Hz X Pow Pressure 125 250 500 1000 2000 4000 8000 dB A dBUA dB Acoustic power by central band frequency dB 10m 1m 0701 78 40 56 69 5 69 9 679 698 62 7 562 479 0801 74 42 58 674 69 9 695 716 614 547 473 0901 73 41 57 762 708 689 704 631 52 5 429 1101 78 46 62 651 702 783 749 841 51 8 42 1402 75 43 59 72 5 72 9 70 9 72 8 65 7 59 2 50 9 1602 77 45 61 70 4 729 72 5 74 6 64 4 577 50 3 1802 76 44 60 79 2 73 8 719 734 661 55 5 45 9 2002 78 47 63 76 5 73 5 78 7 781 66 6 552 454 2202 81 49 65 68 1 73 2 81 3 779 671 54 8 45 2502 82 50 66 71 744 76 6 804 69 8 585 463 With AKW accessory 17 18 CHECK PARAMETERS 131 COMPRESSOR MAGNETO THERMAL SWITCH 400V 13 2 CO
20. 0801_0901_1101 19 4 2 WSH 1402 1602 1802 2002 2202 2502 Low noise with desuperheater DL Low noise with desuperheater DL 26 20 ELECTRICAL CONNECTIONS e All the electrical ope rations must be carri ed out BY QUALIFIED PERSONNEL IN AC CORDANCE WITH THE CORRESPONDING RE GULATIONS trained and informed about the risks related to such operations e The characteristics of electric lines and related components must be esta blished by PERSONNEL AUTHORISED TO DESIGN ELECTRIC INSTALLATIONS following international re gulations and the national regulations of the country in which the unit is installed in compliance with the legisla tive regulations in force at the moment of installation For installation require ments the wiring layout supplied with the unit must be compulsory referred to The wiring layout together with the manuals must be kept in good conditions and re adily ACCESSIBLE FOR FUTURE OPERATIONS ON THE UNIT e It is compulsory to check the machine sealing before con necting the electrical wiring The machine should only be powe red once the hydraulic and electric operations are completed The unit is fully wired in the factory and for the start up requires a power sup ply as shown in the indications on the unit s rating plate with online protecti ve cut outs The cable cross sections and the di mensioning of the line main switch are purel
21. 299 620 3096 3096 20 Yo 20 Yo 664 0701 2 L 1622 1044 400 3096 30 20 20 665 0801 L 1674 1087 400 3096 30 20 20 665 0901 2 L 1737 1127 400 2996 29 21 21 665 1101 li L 2206 1255 400 3196 3196 1996 19 666 1402 z L 2542 1079 620 30 30 20 Yo 20 Yo 662 1602 2 L 2616 1105 620 3096 30 20 20 662 1802 2 L 2689 1129 620 2996 29 21 21 662 2002 L 3168 273 620 30 30 20 20 663 2202 p L 3605 1253 620 31 31 19 19 664 2502 mi L 3703 299 620 3096 3096 20 Yo 20 Yo 664 0701 2 D 1408 1026 400 3096 3096 20 Yo 20 96 665 0801 l D 1462 069 400 29 29 21 21 665 0901 W D 1585 1108 400 2896 28 22 22 665 1101 x D 1968 237 400 3096 30 20 20 666 1402 D 2310 1058 620 2996 29976 2196 2196 662 1602 D 2400 1084 620 2996 29 21 21 662 1802 a D 2462 1106 620 2896 28 22 22 662 2002 D 2913 1951 620 3096 30 20 20 663 2202 E D 3354 1233 620 3096 3096 20 Yo 20 Yo 664 2502 2 D 3458 1276 620 2996 29 21 21 664 KEY a Standard D With desuperheater 22 161 INSTRUCTIONS FOR LIFTING Before moving the unit make sure that all the panels are solidly fixed Use all and only the lifting points in dicated 1611 HANDLING EXAMPLE 16 HANDLING NOTE The lifting forks are not supplied Use ropes of equal lengths and suita ble for lifting the weight of the unit Move the unit with caution without
22. 3 29 57 62 63 72 79 90 Evaporator water flow rate yh 23910 27520 30960 39220 55380 64330 71380 81870 92540 104580 Evaporator pressure drop Pa 15 15 14 18 27 29 29 32 36 40 ENERGY INDICES EER w w 4 61 4 78 4 62 4 74 4 74 4 86 4 71 4 83 4 95 4 87 EEC C B C B B B B B B B COP 416 4 20 416 417 4 28 4 22 4 32 4 31 4 32 4 45 EEC B B B B B B B B B A ELECTRICAL DATA Power supply V 400V 3 50Hz Total input power cool A 65 73 80 6 100 135 146 5 162 1875 210 242 hot A 81 g1 101 130 5 178 5 210 221 256 5 291 320 Maximum current FLA A 184 144 162 182 248 288 324 344 364 430 Peak current LRA A 163 192 229 300 287 336 391 462 482 575 Compressors Type twin twin twin twin twin twin twin twin twin twin screw screw screw screw screw screw screw screw screw screw Number n 1 1 1 1 2 2 2 1 1 2 2 Number per circuit n n 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 CAPACITY CONTROL Cabasiycontroi MT i 40 100 40 100 40 100 40 100 20 100 20 100 20 100 20 100 20 100 20 100 VI x 85 100 25 100 25 100 25 100 12 5 100 12 5 100 12 5 100 12 5 100 12 5 100 12 5 100 EVAPORATOR Type Plates Number n 1 1 4 1 1 1 1 1 1 1 Hydraulic connections Tpe a V 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 CONDENSER Type Plates Number n 1 1 1 1 1 1 1 1 1 1 Hydraulic connections v 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 v 3 SOUND DATA Sound power dB A 86 0 86 0 86 0 92 0 89 0 89 0 89 0 93 0 95 0
23. E which is sold only with the charging capacity Along time ho wever small leaks from the joints may be generated Due to these leaks the refrigerant comes out and the circuit is drained causing the unit malfunction In these cases the refrigerant leakage points are found and repaired and the cooling circuit is recharged operating in compliance with Law 28 December 1993 no 549 caution It is forbidden to CHARGE the coo ling circuits with a refrigerant diffe rent from the one indicated If a dif ferent refrigerant gas is used the compressor may result seriously damaged 29 30 231 DISCONNECTING THE UNIT The unit disconnection operations must be carried out by a registered technician Before disconnecting the unit the fol lowing elements must be removed if present The refrigerant gas the gas must be removed with suction devices that operate in closed circuit so that there is no gas leak in the environ ment The glycol must not be thrown away in such a manner that affects the environment when it is removed It must be placed in suitable contai ners The device is designed and built to en sure the maximum safety in its imme diate vicinity IP2O as well as to resist atmospheric agents 241 IMPORTANT SAFETY INFOR MATION The machine must not exceed the pres sure and temperature limits indicated in the table shown in the Operating li mits section Correct functioning is not guarante ed
24. ION Following extraordinary maintenance interventions on the cooling circuit with the replacement of components before restarting the machine it is ne cessary to carry out the following ope rations Pay the greatest attention when re storing the refrigerant load indicated on the machine rating plate open all the taps in the cooling circuit correctly connect the power supply and the earthing CHECKS IN THE SYSTEM Check the hydraulic connections in the entire system Check the water pump is working correctly Clean the water filter s 31 AERMEC La prm 37040 Bevilacqua VR Italy Via Roma 44 Tel 39 0442 633111 Telefax 39 0442 93730 39 0442 93566 WWW aermec com AERMEC COMPANY QUALITY SYSTEM SA ON AN carta reciclata CX recycled paper 1S0 8001 2000 n 0128 4 C C ae Y papier recycle sake recycled papier masa The technical data in the following documentation is not binding Aermec reserves the right to make all the modifications considered necessary for improving the product at any time
25. MPRESSOR THERMAL CUT OUT 13 3 COMPRESSOR FUSES NOTE 400 V delayed type 13 4 DOUBLE HIGH PRESSURE SWITCH 13 5 HIGH PRESSURE TRANSDU CER 13 6 LOW PRESSURE TRANSDU CER 13 7 REFRIGERATOR CIRCUIT SAFETY VALVES 13 CONTROL AND SAFETY PARAMETERS min standard max Cooling set point C 4 7 16 Heating set point C 35 48 50 Antifreeze intervention C 9 4 Total differential C 3 5 10 Autostart auto 0701 10801 O901 1101 1402 1602 1802 2002 2202 2502 MTC1 231A 231A 310A 200A 124A 144A 162A 162A 182A 215A MTC1A 124A 1144A 162A 182A 182A 215A 0701 10801 O901 1101 11402 1602 1802 2002 2202 2502 HT 434A 162A 180A 106A 72A 84A 84A 94A 108A 125A RT1 72A 84A 94A 108A 106A 125A 0701 10801 0901 1101 1402 1602 1802 2002 2202 2502 FU 1 250A 315A 315A 200A 160A 160A 200A 200A 200A 250A FU2 160A 160A 200A 200A 200A 250A 0701 0801 O901 1101 1402 1602 1802 2002 2202 2502 PA bar 18 19 18 19 18 18 18 19 18 19 18 19 18 19 18 18 18 19 18 19 0701 10801 0901 1101 1402 1602 1802 2002 2202 2502 TA bar 17 7 17 7 17 7 17 7 17 7 17 7 17 7 17 5 177 17 7 0701 0801 0901 1101 1402 1602 1802 2002 2202 2502 TA bar 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0701 10801 0901 1101 1402 1602 1802 2002 2202 2502 BP bar 16 5 16 5 16 5 16 5 16
26. The accessory is delivered in IP65 box AKW ACOUSTIC KIT This accessory allows additional reduction of the noise by means of Hood of the machine optimised by high density lead free materials which allow further reduction of vibrations L L L L L L L L L L 1 Accessory that can only be installed in the factory 7 TECHNICAL DATA C WSH COOLING ONLY 0701 0801 0901 1101 1402 1602 1802 2002 220 2502 Cooling capacity W 166 196 217 270 360 428 466 526 594 672 Total input power W 36 41 47 57 76 88 99 109 120 138 Evaporator water flow rate yh 28550 33710 37320 46440 61920 73620 80150 90470 102170 115580 Evaporator pressure drop Pa 23 24 22 27 43 47 48 59 65 74 Condenser water flow rate yh 34740 40760 45410 56240 74990 88750 97180 109220 122810 139320 Condenser pressure drop Pa 30 31 30 36 57 62 65 79 88 101 HEATING Heating capacity W 183 210 237 300 420 490 540 620 700 784 Total input power W 44 50 57 72 98 116 125 144 162 176 Condenser water flow rate yh 31480 36120 40760 51600 72240 84280 92880 106640 120400 134850 Condenser pressure drop Pa 24 23 2
27. a IV Tre La prim WSH RISA TECHNICAL MANUAL INSTALLATION MAINTENANCE Water to water chiller with screw compressors C EUROVENT CERTIFIED PERFORMANCH AERMEC COMPANY QUALITY SYSTEM m YN b N ISO 9001 2000 n 0128 4 Ena NK 166 kW 672 kW Ae 183 kW 784 kW AERMEC S P A IWSHPY 0809 4471121_00 Dear Customer Thank you for choosing an AERMEC product It is the result of long experience and design specific research The article has been made of materials of the highest quality and incorporates cutting edge technology In addition all our products bear the EC mark indicating that they meet the requirements of the European Machine Directive regarding safety The standard of quality is permanently being monitored and AERMEC products are therefore a synonym of Safety Quality and Reliability The data might undergo modifications considered necessary for the improvement of the product at any time without the obligation for any notice thereof Thank you again AERMEC S p A Summary 11 1 2 44 42 4 3 51 5 2 5 3 5 4 5 5 10 101 11 111 11 2 12 124 12 2 13 131 13 2 Warnings on the documentation Intended use iA Conservation of the docUMENtS oooocooooooooocooo o mo 5 Essential safety rules o ooooooooomo ee 5 Product identification eee 5 Unit descript
28. age water tempe rature of 10 C the following table shows the correction to be applied to the pressure drops when the average water temperature varies 11 2 CONDENSER PRESSURE DROPS IN COOLING OPERA TION The pressure drops in the diagram refer to the average water tempe rature of 30 C the following table shows the correction to be applied to the pressure drops when the average water temperature varies 11 PRESSURE DROP kPa 1o KO 200 Sa W 150 Qo 76 Qo 79 X Y o 100 50 100 150 Water flow rate x 1000 I h 200 250 Average water temperature C 40 50 Multiplicational coefficient kPa 300 1 02 1 0 985 0 97 0 95 0 93 0 91 250 200 150 100 50 100 150 200 Water flow rate x 1000 I h 250 300 Average water temperature C 30 40 50 Multiplicational coefficient 1 07 1 05 1 04 1 02 1 0 98 0 96 121 SOUND POWER Aermec determines the value of the acoustic power on the basis of measu rements taken
29. be carried out by a specialised techni cian with the suitable protection equipment Risk of electric discharge Before opening the chiller it is necessary to disconnect the unit completely from the mains 17 2 SELECTION OF THE INSTAL LATION LOCATION Before installing the unit decide with the customer the position in which it will be placed pay attention to the fol lowing points The support surface must be able to withstand the weight of the unit The selected place must be large enough for laying the necessary pipes Take into account that when the chiller is working vibrations may be generated it is therefore advisable to install vibration damper supports AVX accessories fitting them to the holes in the base according to the as sembly diagram t is compulsory to ensure the mini mum technical spaces Tab 172 2 which are essential for the efficient 17 2 2 Minimum technical spaces performance OF ROUTINE AND EX TRAORDINARY MAINTENANCE OPE RATIONS 173 POSITIONING The chiller is dispatched from the factory wrapped in a polyethylene stretchable film on a pallet Before moving the unit check the lif ting capacity of the machines used Once the packaging has been re moved the unit must be handled by qualified personnel with the suitable equipment To handle the machine IN CASE OF LIFTING Insert in the holes in the base tu bes NOT SUPPLIED which must be long en
30. ching the set point quickly It optimises the operation of the machine both when running normally or when there are load variations thereby assuring top machine efficiency in all situations 0701 0801 0901 1101 1402 1602 1802 2002 2202 2502 AER485P2 Through this accessory it is possible to connect the unit with BMS supervision systems with electrical standard RS 485 and MODBUS type protocol AVX Sprung vibration damping supports 5 665 665 665 666 662 662 662 663 664 664 D 665 665 665 666 662 662 662 663 664 664 PRV This allows the refrigerator command operations to be given from a distance ROMEO The ROMEO device makes it possible to remotely control the chiller from an ordinary cell phone with WAP browser it also makes it possible to send alarm and pre alarm 5MS to up to three GSM cell phones even if they are not fitted with the WAP browser The set includes the AER485 The accessory AER485P2 must be added to this kit RIF 1 Parallel connection with the motor makes the reduction of input current possible on the 400V 3 50 HZ VERSIONS ONLY 161 161 201 241 161 x2 161 x2 201 x2 201 241 241 x 2 B01x2 MULTICHILLER Control system to command turn on and off the individual chillers in a system in which several units are installed in parallel It is possible to select it among different command logics sequen tial homogenous combined
31. echanical filter Positioned in the liquid injection line to the compressor it retains the impuri ties that may be present in the refrige rant circuit 5 2 FRAME Load bearing structure Made of hot galvanised steel sheet of adequate thickness it is painted with polyester powders able to resist the atmospheric agents over time Colour RAL 9002 Acoustic protection cover silenced versions IT is made of hot galvanised steel she et of adequate thickness with internal acoustic insulation and externally pain ted with polyester powders able to re sist the atmospheric agents over time Colour RAL 9002 5 3 SAFETY AND CONTROL COM PONENTS High pressure switch manual automatic Factory calibrated it is placed on the high pressure side of the cooling circu it it shuts down compressor operation in the case of abnormal operating pres sure Low pressure transducer It makes it possible to show the value of the compressor s intake pressure one per circuit on the microprocessor card display Placed on the low pressure side of the cooling circuit it shuts down compressor operation in the case of abnormal operating pressure High pressure transducer It makes it possible to show the value of the compressor s delivery pressure one per circuit on the microprocessor card display Placed on the high pres sure side of the cooling circuit it shuts down compressor operation in the case of abnormal operating pressu
32. ed or missing instal lation and maintenance operations are hampered 4 WARNINGS ON THE DOCUMENTATION shall not be held responsible for any damage whatsoever resulting from the non compliance with these instructions 1 2 CONSERVATION OF THE DOCUMENTS Deliver the following installation instruc tions with all the complementary docu mentation to the user of the unit who shall be responsible for keeping the in structions so that they are always availa ble when needed READ CAREFULLY THIS CHAPTER the unit must be installed by qualified skilled personnel in compliance with the national legislation in force in the country of desti nation The unit must be installed in such 8 way as to make all maintenance and or repair operations possible The warranty of the device does not in any case cover costs incurred as a result of motorised ladders scaffolding or any other lifting sy stems made necessary to carry out the operations under warranty The warranty shall not be valid if the indica tions mentioned above are not observed 2 ESSENTIAL SAFETY RULES It is forbidden to carry out any tech nical or maintenance operation be fore disconnecting the unit from the mains by positioning the system and control panel main switches on off It is forbidden to modify safety or re gulation devices without the manufac turer s authorisation and indications It is forbidden to pull disconnect or twist the outcr
33. iller circuit Compressor conditions Efficiency of the plate type exchanger heater Check the working pressure Efficiency of the compressor s heater Check the cooling circuit sealing and make sure that the pipes in it have not suffered damages Check the high pressure switch ope ration in case of failure replace the switches Check the filter drier fouling state If there is scale in it replace it 22 1 4 Mechanical controls Checkthat screws compressors and the electronic box of the unit external panelling are properly tightened If they are poorly tightened they pro duce abnormal noise and vibrations Check the structure conditions If necessary treat oxidised parts with paints suitable for eliminating or reducing oxidation It is advisable to keep a machine booklet not supplied but provided by the user in order to keep trace of the operations carried out on the unit In this way it will be easier to organise the operations properly and facilitate failure prevention and troubleshooting in the machine In the booklet write down date type of operation carried out rou tine maintenance inspection or re pair description of the operation measures taken 22 2 EXTRAORDINARY MAINTE NANCE WSH chillers are charged with gas R134a and tested in the factory In normal conditions no Technical Assi stance Service operation is needed for the refrigerant gas check Except for version
34. ing conditions for compressors lower pressure and lower discharge temperature which re sults in less failures and a reduction in the maintenance costs Continuity of performance throughout time Less deterioration of the compressor mechanical parts and of the lubricating oil Repeatability of the adjustment and energy consum ption results throughout time All this in acknowledgement of AERMEC commitment to and respect for the problems related to energy saving and conscious and socially responsible use of the available resources Example WSH 1802 5 DESCRIPTION OF COMPONENTS 9 1 Compressors 2 Liquid indicator 3 Filter drier 4 Economiser 5 Thermostatic valve economiser 6 Solenoid valve economiser side 7 Filler valve 8 One directional valve 9 Evaporator 10 Condenser 11 Cycle inversion valve Safety valve low pressure side Safety valve high pressure side Electronic box 541 REFRIGERATING CIRCUIT Compressors Semi hermetic high efficiency bi screw compressors with a cooling capacity regulation by means of continuous modulation from 40 to 100 from 25 to 100 with electronic valve and fitted with Thermal motor protection Oil discharge temperature check Electric heater for the heating of the oil casing with the compressor at a standstill Reset button Excha
35. ion orit terrenos 6 Versions available enne 8 Available versions Configurator Description of components Safety and control components Electrical components Electronic regulation ucc Lisan temenan maba senang inai 9 Technical data essent neentnnntentnnntnnttn ttes 10 Operational limits eene ttnntnnen 11 Design date dir 97 23 ce eee 11 Corrective factor 12 Cooling capacity and input power 12 Heating capacity and input power see For At different from the rated value Fouling factors Ethylene glycol solution How to read glycol curves Pressure drop Evaporator pressure drops in cooling operation Condenser pressure drops in cooling operation Sound data Sound power Sound pPesSube eee ate a dp eese dete dunes 17 Control and safety parameters setting Compressor magnetothermal switch 400v Compressor thermal cut out ooooooooooooocooWooooo 18 13 3 13 4 13 5 13 6 13 7 14 141 15 151 16 164 17 171 172 17 3 18 181 18 2 19 181 18 2 19 3 19 4 20 201 21 211 21 2 21 3 22 221 22 2 23 231 24 241 Compressor fuses note bee iecit centers 18 Double high pressure switch see 18 High pressure transducer Low pres
36. ith fuses 3 230V 50 Hz with fuses 3 230V 50 Hz with thermomagnetic switches 3 500V 50 Hz with fuses 3 400V 50 Hz with thermomagnetic switches 3 500V 50 Hz with thermomagnetic switches 1 ELECTRONIC VALVE ELECTRONIC EXPANSION VALVES are characterised by a high regulation capacity that allows compressors to always work in the best possible operating condi tions compatible with the outdoor ambient condi tions In winter it is therefore possible to work with very low condensation pressure improving the efficiency of com pressors and reducing power consumption With the electronic valve in our chillers temperature adjustment is more efficient as it is possible to obtain lower working temperatures making the best use of the evaporator surface Besides the system does not require future settings or adjustments since the elec tronic valve operates continuously its control function according to the parameters obtained from the transdu cers keeping optimum overheating values Apart from better pressure conditions there are better tempera ture conditions for the compressors keeping discharge temperatures lower than the ones obtained when using the standard thermostatic valve This results in a longer service life for the compressor and a reduction in the number of failures To summarise the advantages of using the electronic valve are Energy saving in the system consumption levels Better work
37. nger condenser Of the plate type AISI 316 it is insula ted externally with closed cell material to reduce thermal dispersions Exchanger evaporator Of the plate type AISI 316 it is insula ted externally with closed cell material to reduce thermal dispersions Economiser Plate type AISI 316 This allows the additional cooling of the refrigerant exiting the condenser and at the same time creates a vapour to be injected in an intermediate point of the con densing process reducing both the delivery temperature as well as the electrical absorption Filter drier Of the mechanical type made of cera mics and hygroscopic material able to trap impurities and any traces of humi dity in the cooling circuit Liquid indicator For checking that the refrigerant gas load and any humidity in the cooling cir cuit Thermostatic valve The mechanical type valve with outside equaliser on the evaporator outlet mo dulates the gas flow to the evaporator dependent on the thermal load in such a way as to ensure the proper intake gas degree of overheating Thermostatic valve economiser The mechanical type valve with outside equaliser on the economiser outlet on the inlet of the compressor to improve performance Solenoid valve The valve closes when the compressor turns off preventing the flow of refrige rant gas towards the evaporator One way valve This allows the refrigerant to flow in just one direction M
38. opping electrical ca bles of the unit even if it has been di sconnected from the mains It is forbidden to leave containers and flammable substances near the chiller It is forbidden to touch the unit with wet parts of the body and bare feet It is forbidden to open the access do ors to the unit internal parts without having first turned off the system main switch It is forbidden to spread leave or keep the packaging material within the reach of children as it may be a possible source of danger 3 PRODUCT IDENTIFICATION N NY TECHNICAL ere CARD The units from the WSH series are water chillers water condensed for re sidential and industrial use The machi ne is designed for the management of both hydraulic circuits evaporator and condenser therefore it can be used not only as a water chiller but also to produce hot water The commutation between COOL HEAT is obtained by managing the cooling circuit The new WSH series is characterised by the use of refrigerant R134a which allows reaching performances signifi cantly superior to equivalent products that operate with R407C This is also the result of a thorough stu dy and dimensioning of all the internal components in order to make the most of the refrigerant gas characteristics 4 UNIT DESCRIPTION The whole series includes models with one or two twin screw compressors and are fitted with star delta start to reduce the
39. ough to be able to position the lifting cables In order to avoid damaging the WSH structure with the cables insert protections between them and the machine Under no circumstance must any body or anything stop under the unit even briefly NOTE The warranty of the device does not in any case cover costs incurred as 8 result of motorised ladders scaf folding or any other lifting systems made necessary to carry out the operations under warranty 23 183 WSH INTERNAL HYDRAULIC CIRCUIT The unit is supplied in different ver sions Standard WSH only evaporator condenser without hydronic kit fig 1811 Plate type exchangers Water inlet and outlet sensors SIW SUW Victaulic connections 18 2 WSH EXTERNAL HYDRAULIC CIRCUIT NOT SUPPLIED The selection and installation of com ponents outside the WSH should be carried out by the installer who should work according to the technical code of practice and in compliance with the legislation in force in the country of de stination Anyway the following installation is re commended Filter 1 evaporator inlet 1 conden ser inlet The presence of the filter should be considered obligatory and ITS REMOVAL WILL MAKE THE GUARANTEE void It must be kept clean so it is necessary to check its clean state after the installa tion of the unit and check it regu larly Pump Inertial accumulation tank Charging unit Ex
40. pansion tanks Safety valve 48 HYDRAULIC CIRCUIT 1811 Standard WSH VERSIONS without HYDRONIC KIT 2 KEY 1 Evaporator plate type exchanger 2 Condenser plate type exchanger Drain valve Flow switch it is obligatory to carry out the calibration of the flow switch on the flow rate values requested by the system if this is not done the guarantee will be considered void Manual interception valves The installation of the manual interception valves between the unit and the rest of the system should be considered obligatory for all WSH models and for all the hydraulic circuits that concern the chiller itself desuperheaters if this is not done the guarantee will be considered void Flexible high pressure joints Pressure gauge The hydraulic piping for connection to the machine must be properly scaled for the actual water flow rate required by the plant when working The water flow rate to the heat exchanger must always be constant CAUTION Carefully wash the system before con necting the heat pump This is done in order to eliminate possible residues such as welding spatter waste rust or any other impurity from the pipes Otherwise these materials may re main inside the unit and cause failures The connection pipes must be properly supported so as not to burden the unit with their weight 79 POSITION OF HYDRAULIC CONNECTIONS 194 STANDARD VERSION WATER OUT AN WATER IN
41. present the coefficients for the correction of the cooling capacity and input power for the flow rates and the pressure drops remember that these coefficients must anyway be multiplied by the nominal value of the sizes examined while the lower axis advises the per centage of glycol necessary on the basis of the outside air temperature considered f you wish to calculate the percen tage of glycol on the basis of the processed water temperature it is necessary to enter from the FeGDpF a FeGDpF b FeGDpF c FoGDpF d FeGDpF e FoGQ PdC FcGPf PdC FcGPa Correction factor a a processed water C Temperature External air temperature C To O 0 5 Q 15 20 25 30 35 40 45 50 55 KEY FcGPa Input power correction factor FcGDpF e Pressure drop correction factor average temperatu re 475 C FcGGF Capacity correction factor evap average tempera ture 9 5 C FcGGC Flow rate correction factor condenser average tem perature 47 5 C NOTE Although it reaches outside air temperatures to 40 C it is necessary for the graph to main tain the machine s operating limits as reference 4 right hand axis and once the curve is intersected draw
42. ransducers loads and alarms corresponding to the compres sor that commands are connected while the general machine ones are connected only on the MASTER card Microprocessor Remote on off with external contact without power Multilingual menu Phase sequence control Independent control of individual compressors Ammeter transformer Cumulative failure block signalling Alarm log function Daily weekly programming nlet outlet water temperature display Alarm display Full proportional regulation of the output water temperature Programmable timer function Function with double setting point connected to an external contact nterfaceability with the Modbus protocol accessory Pump control Compressor rotation control Analogue input from 4 to 20 mA Outside air temperature sensor Always Working function In the case of critical conditions e g an ambient temperature that is too high the machine does not stop but is able to regulate itself and provide the maximum power that can be generated in those conditions Self adapting operating differential Switching Histeresys to ensure the correct compressor functioning 6 ACCESSORIES at all times even in plants with a low water content or insufficient flow rates This system reduces the compressor wear The PDC Pull Down Control system to prevent the activation of the power steps when the water temperature is approa
43. re Cooling circuit safety valves HP LP Calibrated to 22 bar HP and 16 5 LP they cut in relieving the overpressure in the case of abnormal operating pres sures 5 4 ELECTRICAL COMPONENTS Electrical panel Contains the power section and the management of the controls and safety devices This conforms with standard CEI 60204 1 and electro magnetic compatibility directives EMC 89 336 CEE and 92 31 CEE CPCE valve Hot gas injection device up stream of the evaporator fitted on the partial or total heat recovery versions NOTE Furthermore all the cables are wired for immediate recognition of all the electrical components Door lock knife switch THE electrical panel can only be acces sed by cutting off power using the ope ning lever on the panel itself This lever can be locked in place using one or more padlocks during maintenance in order to prevent the machine being powered up accidentally Control keypad Provides full control functions For a detailed description of the keypad refer to the user manual secondary thermomagnetic switch pro tection 5 5 ELECTRONIC REGULATION Electronic regulation on the WSH chil lers consists of control cards pCO for each compressor connected to each other in a network and a control panel with display In the case of models with more compressors the card that con trols compressor 1 is the MASTER card while the others are SLAVE On each card the t
44. s on board the machine Power up the unit by turning ON the main switch The display will light up some seconds after the unit is po wered up check that the operation status is OFF 21 PUTTING INTO SERVICE 21 1 3 Hydraulic circuit controls Check that the system has been wa shed and that the cleaning water has been discharged before the unit is connected to the system Check that all the hydraulic connec tions are correctly made and that the indications on the plates are ob served Check that the hydraulic system is full and under pressure and also make sure that there is no air if the re is air bleed it Checkthat any interception valves on the system are correctly opened 21 2 COMMISSIONING NOTE For the setting of all functional parame ters and for detailed information regar ding machine functioning and the con trol card refer to the user s manual After carefully carrying out all the checks detailed above it is possible to start up the unit Check the set working parameters set point and reset any alarms that may be present After a few minutes the unit will start up 21 2 1 Cooling circuit controls Check for refrigerant gas leaks especially near pressure inlets and pressure switches vibration during transport may have loosened the connectors The high pressure switch stops the compressor generating the related alarm when the delivery pressure exceeds the set point
45. sure transducer Refrigerator circuit safety valves sss 18 Dimensions Dimensional tables Weights and centre of mass Percentage distribution of weights on supports Handling nstructions for lifting Safety warnings and regulations of installation Safety warnings Selection of the installation location PASANG RAR ee egets Hydraulic circuit eene tnnt tnnntnni e4 WSH Internal hydraulic circuit 24 WSH external hydraulic circuit not supplied 24 Position of hydraulic connections o ooooo 25 Standard version Quiet operation version L Desuperheater version D Low noise with desuperheater version DL 26 Electrical connections oooooooooooooooo 27 Electrical data cae ent de enda 27 Putting into SErVIC ooooooooooooooooenan 28 Preparation for commissioning ses 28 Commissioning System discharge Maintenance Maintenance warnings Extraordinary maintenance Disposal Disconnecting the unit Improper uses Important safety information Danger moving parts Danger high temperature LE Danger power supply To install the unit please observe the safety warnings included in these instructions Danger cut off power supply General danger
46. ween 4 and 5 C In these units the pressure gauge is not supplied it is advisable to install it in the corresponding pressure inlet 21 2 4 Delivery temperature If the under cooling and superheating values are correct the temperature measured in the delivery tube at the compressor outlet must be 30 40 C above the condensation temperature 21 3 SYSTEM DISCHARGE It is advisable to drain the system only when the unitis going to remain inactive for extended periods or for maintenan ce operations that require draining Before starting to drain the system turn OFF the main switch Check that the water filling topping up tap is closed NOT SUPPLIED Open the drain tap and all the drain Note All the routine and extraordinary maintenance operations must be car ried out only by qualified personnel Before starting any cleaning or main tenance operation it is advisable to disconnect the unit from the power supply 22 1 MAINTENANCE WARNINGS e Inspection maintenance and pos sible repair operations must be carried out only by an authorised technician according to the law A deficient check maintenance operation may result in damage to things and people Maintenance operations constitute a necessary condition for the unit safe and long lasting operation high reliabi lity and long life All the units are subject to wear along time Maintenance operations allow To keep the unit efficiency
47. y indicative The installer will be responsible for properly scaling the power line with re gards to the length and type of cable the input power of the unit and the phy sical positioning All the electrical wiring must comply with the regulations in force at the time of the installation The data given in this documentation must only be used as an aid for setting up the electric lines For installation re quirements the wiring layout supplied with the unit must be compulsory re ferred to Note Check that all power cables are cor rectly secured to the terminals when switched on for the first time and after 30 days of use Afterwards check the connection of the power cables every six months Slack terminals could cause the cables and components to overheat Cross section recommended for the maximum length of 50m The cross section of the cable and the dimen sions of the line main switch are purely indicative 201 ELECTRICAL DATA WSH Number Versions SECTA Sect H Earth IL power supplies mm mm mm A no conductors sect for each phase 0701 1 recovery hole 70 5 35 200 0801 1 recovery hole 70 5 35 200 0901 1 recovery hole 95 5 50 200 1101 1 recovery hole 120 5 70 250 1402 1 recovery hole 185 ka 95 315 1602 1 recovery hole 240 5 120 400 1802 1 recovery hole 240 19 120 630 2002 1 recovery hole 2x150 5 150 630 KEY 2202 1 recovery hole 2x150 5 185 630 Sect
Download Pdf Manuals
Related Search