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SERVICE MANUAL - Emerson Network Power

1. IN S Tab a Available packages following the required configuration Dimensions DESCRIPTION Re Fig 1 Dimensions mm A B Air Conditioner X and Conditioner Base Module CBM connected together 820 2325 Air Conditioner X 820 2100 Air Conditioner X Base Module CBM and Conditioner Top Plenum CTP connected together 820 2550 Rack RAC and Rack Base Module RBM connected together 920 2325 Rack RAC 920 2100 Rack RAC Rack Base Module RBM and Rack Top Plenum RTP connected together 920 2550 DESCRIPTION Re Fig 2 Dimensions mm Cc D Conditioner Top Plenum CTP 820 270 Conditioner Top Plenum CTP and Conditioner Base Module CBM 820 620 Rack Top Plenum RTP 920 270 Rack Top Plenum RTP and Rack Base Module RBM 920 620 H 1 XDFN English Il Fabbricante dichiara che questo prodotto conforme alle direttive Europee The Manufacturer hereby declares that this product conforms to the European Union directives Der Hersteller erkl rt hiermit dass dieses Produkt den Anforderungen der Europ ischen Richtlinien gerecht wird Le Fabricant d clare que ce produit est conforme aux directives Europ ennes El Fabricante declara que este producto es conforme a las directivas Europeas
2. Fig 5 Rack smoke warning sensor optional location REAR VIEW _ NS 0 g a dd Smoke Warning Sensor D q optional q mi D E q H Id d d B db q E E E D q 1 d T d UR q F 3 XDFN English Maintenance Fig 1 Air conditioner column FRONT VIEW AIR FILTER MAINTENANCE EC FAN MAINTENANCE CONDENSING CONTROL DEVICE A VERSION ELECTRIC HEATERS THERMOSTAT MANUAL RESET ELECTRICAL PANEL ELECTRICAL EXPANSION VALVE CONTROLLER REFRIGERANT LINE SERVICE AREA MAINTENANCE FOR COMPRESSOR ELECTRONIC EXP VALVE HUMIDIFIER OPTION ELECTRICAL HEATING HIGH PRESSURE PRESSOSTAT CONDENSING CONTROL VALVE W VERSION CHILLED WATER VALVE C VERSION DAMPER MAINTENANCE G 1 XDFN English Maintenance Fig 2 Rack unit ELECTRICAL PANEL FRONT VIEW BACK UP VENTILATION FANS MAINTENANCE BACK UP VENTILATION DAMPER MAINTENANCE English XDFN Packing Fig 1 Standard packing Fig 2 Standard packing Air conditioner Rack Plenum and or Base module with or without base module
3. 1 At standard operating conditions see Product Documentation 2 Fan is equipped with an internal soft starter wich needs LRA approx to Zero Ampere 3 At nominal operating conditions Condensing temperature 50 C see also Product Documentation Tab 5 Electrical data optional component Component HUMIDIFIER 230 V 10 1 Ph 50 Hz Model FLA A Nominal power kW X13 17 20 23 25 6 5 1 5 Tab 6 Electrical data Rack Module Back up fan Fan type centrifugal quantity 2 OA each A 1 4 FLA each A 1 4 LRA each A 3 0 Power input Ww 300 Damper actuator Power supply Vac 24 Power consumption VA 24 peak English XDFN B 1 Technical data table Tab 7 Calibrations of electrical components COMPONENT SETTING NOTES Contact STOP 2 barg START 2 8 barg Dela yed Low Pressure Switch LP DIFFER fixed 0 8 bar automatic del q A reset fixed setting automatic re see MICROFACE set HIROMATIC manual STOP 26 barg START 20 barg N II High Pressure Switch HP DIFFER fixed 6 0 bar ee fixed setting manual reset S di Clogged filter differential pressure switch Filter G4 200 Pa Normally CF open Setting ring Min air flow differential Normally pressure switch STOP 100Pa open Setting ring Electric expansion valve and superheating controller
4. from supply valve to interface English English A 4 Start up and operation A 4 1 Start up Before using the humidifier check the following e Supply and drain connections e That the cut off tap is open All wiring e Earthing e Steam hose connection between steam cylinder and distributor To start the humidifier simply switch on the air conditioner which will in turn automatically start and stop the humidifier as required The adjustable parameters which determine humidifier operation have already been factory preset see HIROMATIC manual A 4 2 Operation Water provided it contains even a small quantity of salts in solution is a conductor of electricity Therefore if the steam cylinder is filled with water and a potential difference is ap plied between the electrodes the water behaves like an ordi nary electrical resistance and becomes hot thus creating steam The steam production rate can be controlled by varying the water level in the cylinder the higher the water level the deeper the electrodes are immersed into it and the greater the steam production Note When starting with an empty cylinder the water conductivity is normally insufficient for the HUMIDIFIER STEAM OUT PUT to be reached immediately Therefore the humidifier produces as much steam as pos sible to fill the cylinder completely Any evaporation water is immediately refilled The drain valve is kept
5. DRAIN WATER DEVICE Dispose the drain water into an ordinary drainage net work using a funnel the drainage network must be able to withstand water tem peratures up to 100 C WATER DRAIN TUBING It is supplied a hose with an inte gral drain trap DO NOT DISMANTLE THE DRAIN TRAP DO NOT DISMANTLE THE DRAIN TRAP The hose is already fitted onto the humidifier drain outlet K Fill the drain trap with water L The drain pipe is made of plas tic material which does not conduct electricity NOTES 1 Allow a 2 gradient towards the drain outlet 2 Avoid back pressures in the drain piping A 3 Humidair components The components of the HUMIDAIR humidifiers are shown below Fig c The humidifier and its connections DRAIN VALVE ASSEMBLY D A filling cup SUPPLY VALVE F overflow tube supply valve drain tank XDFN from humidifier power electrodes to electrical supply L_J from EE 7 level sensor P to interface t level electrode power electrodes steam cylinder drain valve from supply valve to interface water drain outlet
6. see detail C for gasket ation SELF LOCKING NUT M8 WASHER D 8 4 x 17 XDFN English Installation drawings r 275 T 330 T 335 T 260 BT N N N N N N N M N N N N N 30 MI 2 N 00 i N d i N N N N N N N N N N DETAIL B TOP VIEW N N N 4 e gasket location Ea h N NUO J see the sectioned lines L gasket thickness N 3 mm E k N N N N N y 1 N V 1 N V 1 n N 2 N N N N N Ml A N N N A N N Jf TEE NM cocco ccce 856 225 SA 20 n N N o N N o N DETAIL C LATERAL VIEW gasket location N N see the sectioned lines e gasket thickness 2 3mm 2 V N N o N N N to i BASE MODULE 4 English XDFN Installation drawings Building the system three The rack top plenum will be placed on the top In between the gasket Fig 9 Step 3 pd C DOWEL M8 x 40 LATERAL PANEL CLOSED L SELF LOCKING NUT M8 I WASHER D 8 4x 17 lt gt Se E GASKET see detail D for gasket location TOP MODUL GASKET RACK RACK AC UN
7. Motor is overload protected via motor current limitation Warning Leakage current of the motor is 7 mA roughly 7 2 Rack module see Fig 2 Fig 3 and Fig 4 Enclosures F 7 2 1 Power input Power supply 230 V 1 Phase 50 Hz EARTH Input power cable size 2x2 5 mm EARTH 7 2 2 Rack electrical panel On the front left side of the rack the relevant electrical board is located closed by 6 screws It has been designed in order to fulfill the following functions 1 to manage the power input from std network single phase earth or from UPS according to the local rules 2 to contain the microprocessor able to check the temper atures manage the backup ventilation support the monitoring via SNMP opt 3 to power supply and control the damper and backup ventilation fan 4 to contain the specific slot RJ45 8 poles where to con nect the Hiromatic kit accessory for rack 5 to manage the optional devices i e fire extinguishing system open door sensors smokestat 7 2 3 PDU power limitations see Fig 4 Enclo sures F To reduce the risk of overload do not load any single socket with more than 16A Each PDU is protected with specific re sidual current MCB in order to reduce the risk of electric shock 7 2 4 Power strip limitations see Fig 4 Enclo sures F To reduce the risk of overload do not load any single strip with more than its rated maximum 3400W 16A 7 2 5
8. Smokestat see Fig 5 Enclosures F This device is installed as option on the top rear side of the rack module To reset the smokestat sensor it is necessary to switch off and after to switch on the QF1 main switch lo cated in the front electrical panel of rack module 7 3 Mutual connections between Cooling and Rack Module Between the rack and the air conditioning modules follow ing connections are required to be set on the field Auxiliary connections between rack and air conditioning Electrical connections between dampers of contiguous air conditioners Fire detection and extinguishing system opt e Hirobus data cable between air conditioners of the same system Further details on the specific wiring diagram included in side the unit 7 4 Safety warnings and Standards IMPORTANT SAFETY NOTES FOR INSTALLATION Check the grounding when installing the rack and the air conditioning units Check the max power absorbed from each strip Check the voltage before connecting any equipment to the PDU and before to switch on the XDFN Open the main switch installed inside the rack and the air conditioning before any maintenance operation Maintenance operation to be done only by authorized staff The product conforms to EU directives EN 60204 1 8 Cooling module start up 8 1 First start up or after long standstill TO PREVENT COMPRESSOR DAMAGE THE CRANK CASE S MUST BE PREHEATED
9. O Fabricante declara que este produto est em conformidade com as directivas Europeias Tillverkare f rs krar h rmed att denna produkt verensst mmer med Europeiska Uniones direktiv De Fabrikant verklaart dat dit produkt conform de Europese richtlijnen is Vaimistaja vakuuttaa t ten ett tama tuote t y tt seuraavien EU direktiivien vaatimukset Produsent erkl rer herved at dette produktet er i samsvar med EU direktiver Fabrikant erkl rer herved at dette produkt opfylder kravene i EU direktiverne O Karaoxevaot s Snover n TO map v xpol v siva kavaokevaou vo avupova ue vic odnyiec mg E E 98 37 CE 89 336 CEE 73 23 CEE 97 23 CE Emerson Network Power EMEA Liebert Hiross Headquarters Via Leonardo da Vinci 16 18 35028 Piove di Sacco PD Italy tel 39 049 9719111 fax 39 0495841257 www eu emersonnetworkpower com marketing emea emersonnetworkpower com Emerson Network Power EMEA Global Service Via Leonardo da Vinci 16 18 35028 Piove di Sacco PD Italy tel 39 0499719111 fax 39 0499719045 service emea emersonnetworkpower com Emerson Network Power in EMEA Emerson Network Power GesmbH Austria Handelskai 102 112 1200 Wien tel 43 1331890 fax 43 1331892450 Emerson Network Power Emerson Network Power and Liebert HIROSS Czech Rep Na Pricce 72 6 14200 Praha 4 tel 42 02 41727954 fax 42 02 41718717 Emerson Network Power S A France 124 Avenue Gallieni 93170 Bagno
10. It is advisable to use hoses to be connected with 3 piece joints to the condenser water inlet and outlet couplings IMPORTANT fit a standard strainer on the inlet water pip ing Place shut off ball valves at the conditioner inlet and outletto allow easy maintenance It is advisable to install a water drain system at the lowest point in the circuit Fully drain the piping before connecting it to the air con ditioner 6 3 1 Notes for open circuit applications Use the unit with mains or well water DO NOT USE WATER FROM AN EVAPORATIVE COOL ING TOWER UNLESS THE FILLING WATER HARD NESS IS CONTROLLED The water pressure must be 2 10 bar if this is not so contact the Technical Support Department The required water flow at different temperatures is given in our catalogues or on request If necessary very low water temperature insulate both pipes using Armaflex insulation 6 3 2 Notes for closed circuit applications 6 4 The installation in Fig h is indicative only for individual installationsfollow the project diagram Install a pump system calculated on the basis of the flow and total head of the system see project data and controlled by the compressor running see label on the unit Insulate both pipes using Armaflex insulation VERY IMPORTANT Add water and ethylene glycol to the circuit when the ambient temperature is below zero re ferring also to para 6 4 Do not exceed the n
11. See para 11 1 Condensing control valve 3 way type W version only SET 17 barg Configuration switches 1 characteristic OFF 2 control signal OFF 3 Volts or mA OFF 0 10 Vdc proportional modulating action Normally closed through the con denser side when de energized Servomotor for 3 way chilled water valve 0 10 Vdc proportional modulating action 3 way chilled water valve Modulating action XDFN English Technical data table Tab 8 R407C R22 refrigerant and oil charge for air cooled models A type BASE REFRIGERANT CHARGE EASE OCTO C Mer MODEL kg each circuit o oil within compressor l initial oil charge Max topping up X13UA 4 8 1 36 1 24 X17UA 5 2 1 95 1 83 X20UA 5 6 1 77 1 66 X23UA 6 6 2 51 2 40 Tab 8a Refrigerant and oil pipe charge Pipe diameter mm Oil pipe charge I Refrigerant pipe charge Ve H rn in SS ET TP Liquid kg m for distances D AC and COND AC and COND without hot gas reheating with hot gas reheating 4 10 0 070 0 05 0 10 12 0 101 0 08 0 16 14 0 137 0 12 0 24 16 0 178 0 15 0 30 18 0 227 0 19 0 38 22 0 339 0 25 0 50 1 The recommended oil for units with R407C refrigerant is EMKARATE RL 32 3MA For units with R22 refrigerant pay attention to compressor label if requested mineral oil this will be SUNISO 3 GS if requested ester oil this
12. 0 08 14x1 0 0068 0 11 0 11 0 10 0 12 0 12 0 11 16x1 0 0085 0 17 0 16 0 15 0 18 0 17 0 16 18x1 0 012 0 23 0 22 0 20 0 24 0 23 0 21 22x1 0 019 0 34 0 32 0 31 0 36 0 34 0 33 28x1 0 033 0 58 0 55 0 52 0 61 0 58 0 55 Due to the small weight influence at 15 5 bar discharge temp 65 C only 0 062 kg l for RA07C and R22 is considered Liquid pressure and density varies according to condensing temperature see refrigerant tables Tab d Equivalent lengths m of curves shut off and non return valves gm ddr GER v mm 90 45 180 90 12 0 50 0 25 0 75 2 10 1 90 14 0 53 0 26 0 80 2 20 2 00 16 0 55 0 27 0 85 2 40 2 10 18 0 60 0 30 0 95 2 70 2 40 22 0 70 0 35 1 10 3 20 2 80 28 0 80 0 45 1 30 4 00 3 30 XDFN English English 5 2 Vacuum creation and refrigerant charge Check the refrigerant type to be used on DM the data plate of the air conditioner and on the refrigerating compressor Fig f Pump and refrigerant charging cylinder con nection for vacuum creation and refrigerant charge 5 2 1 R407C precharge A version 1 Open all cocks of the system including those used for pressurizing ambient unit and condensing unit By this operation all the components of the refrigerating circuit must be subject to vacuum 2 Connect a
13. FOR AT LEAST 4 HOURS BEFORE CONDITIONER START UP FAILURE TO DO SO INVALIDATES THE GUARANTEE Start the air conditioner as follows 1 Open all valves in the refrigeration circuit according to the instruction label attached to the valve 2 W only Open all valves in the water circuit according to the instruction label attached to the valve 3 Ensure that the refrigerant charge is correct see Chap 5 4 Using a leak detector verify that there are no refrigerant leaks If there are any then repair the leak and recharge as described in Chap 5 5 At least 4 hours before start up close QS and QF8 on the electrical panel XDFN English English 6 Verify the operation of the crankcase heater 7 Check that there are no water leakages 8 Close all MCBs on the electrical panel 9 Check the supply voltage on all phases 10 ENSURE THAT THE COMPRESSOR HAS BEEN PRE HEATED FOR AT LEAST 4 HOURS BEFORE START ING THE UNIT 11 Start the air conditioner by pressing the specific button on the Hiromatic control local ON OFF 12 Check the electrical absorption of all components see Tab 4 Enclosures B 13 Check the electrical absorption ofthe external condens er Dry cooler 14 If the phase sequence relay detects an uncorrect com pressor electrical connection an alarm is activated and the compressor can not start In this case it is necessary to invert the electrical connections of the phases supply in
14. VIEW REAR VIEW Auxiliary contact cable for back up ventilation enabling connect to ter minals 1 12 of terminal block lo cated inside rack electrical panel Air conditioner main supply connec tion terminal block and condensing unit supply terminals Air conditioner damper connection terminal block F 1 XDFN English Electrical connections Fig 2 Rack electrical power supply 230V 1ph 50 Hz EARTH FRONT VIEW p BACK UP VENTILATION FANS Back up ventilation fans terminal block ELECTRICAL PANEL H le Electrical cables connection path for back up ventilation fans and auxiliary contact cable for back up ventilation enabling BACK UP VENTILATION DAMPER Q Rack electrical panel supply terminals amp d a Z Power supply to be connected to terminal block Damper back up ventilation connection terminal block English XDFN F 2 Electrical connections Fig 3 Rack electrical panel location Fig 4 Rack power strips and PDU location optional FRONT VIEW PDU optional Electrical 3 Power strips panel N optional IS IN d RI N RJ45 8 poles ln e REAR VIEW roma ic for without door
15. XDFN English Refrigerant and hydraulic connections Fig 2 Connections RACK MODULE FRONT VIEW LATERAL VIEW l REAR VIEW CONNECTIONS e P BOTTOM TOP VIEW CONNECTIONS Sealed holes dia 63 mm for power and data cables Two supplied seals one for 9 cables max dia 10 5 mm one for 4 cables max dia 16 5 mm The remaining four holes are supplied with simple gland cable CONNECTIONS Rear connections possible with short doors only Eus PREPUNCHED HOLES 63 WITH SHORT DOORS ONLY English XDFN Refrigeration circuits Fig 1 XDFN XxxUA di E l X lt JA 9 v OO O 0 2 NO KI M of x 00 2 Y G2 X3 VA Dd 3 7 E SUPPLY LIMIT CONDENSING UNIT 4 POS DESCRIPTION POS DESCRIPTION 1 Capacity modulating compressor 12 Check valve mandatory 2 Crankcase heater 13 Shut off valve 3 High pressure switch HP 14 Safety thermostat for X13UA only 4 Air cooled condenser 15 Evaporator 5 Liquid receiver 16 Low pressure switch LP 6 Access valve 17 Shut off solenoid valve 7 Safety valve 18 Pressure transducer for expansion valve 8 Filter dryer 19 Suction a
16. below the global warming potential GWP of some major f gases R 134a GWP 1300 R 407C GWP 1610 R 410A GWP 1890 Operators of the above mentioned applications sta tionary refrigeration air conditioning and heat pump equipment including their circuits as well as fire protec tion systems which contain fluorinated greenhouse gases shall using all measures which are technically feasible and do not entail disproportionate cost a prevent leakage of these gases and as soon as pos sible repair any detected leakage b ensure that they are checked for leakage by certified personnel c ensure for putting in place arrangements for the proper recovery by certified personnel d In case of applications containing 3 kg 6kg in case of hermetically sealed system or more of f gases certified personnel provides regular leak testing ac cording to Reg 1516 2007 and Reg 1497 2007 and maintain records of maintenance activities in a dedi cated log book English English e Recovery for the purpose of recycling reclama tion or destruction of the fluorinated greenhouse gases pursuant to Art4 Recovery of Reg 842 2006 shall take place before the final disposal of that equipment and when appropri ate during its servicing and maintenance Operator according to Reg 842 2006 Article 2 point 6 means the natural or legal person exercising actual pow er over the technical functioning of the equipment and system covere
17. consumption resulting in an economic and environmental damage Use the freecooling function if available 12 13 12 Maintenance Spare Parts 12 1 All maintenance operations must be carried out strictly ob serving the European and National accident prevention reg ulations We refer especially to the accident prevention regu lations concerning electrical systems refrigerators and manufacturing resources Maintenance may be done to air conditioning equipment only by authorized and qualified technicians To keep all warrantees valid the maintenance must adhere to the manufacturer s regulations Safety instructions The work should be done in the system only whenit is at standstill Do this by switching off the air conditioner at the controller and the main switch Post a warning sign saying DO NOT SWITCH ON Electrical components of device have to be switched off and be checked that they are not under voltage Ignoring the safety instructions can be dangerous to per sons as well as to the environment Soiled parts always cause a loss of performance and for switch or control devices can lead to the break down of a plant 12 2 Kit Hiromatic evolution L1 for Rack module see Fig 2 Enclosures G This accessory allows to check up main parameters man aged by electronic control of Rack module XDFN It is a loose supplied device available on request useful above all for service applicat
18. external diametre x thickness mm thickness mm R407C R22 Gas Liquid Gas Liquid X13 14X1 14X1 16X1 16X1 X17 16X1 16X1 16X1 16X1 X20 18X1 16X1 22X1 18X1 X23 22X1 18X1 22X1 18X1 When the pipes are more than 30 m long contact Technical Support Department 5 1 3 Installing pipelines THE FOLLOWING OPERATIONS MUST BE CARRIED OUT BY AN EXPERIENCED REFRIGERATION TECHNICIAN The discharge operation of the room unit pressurized with helium at 1 bar and the de welding of the bottoms from the connections must be carried out as last operations immediately followed by the connection and emptying of the whole system 1 Lay the piping taking note of the following e Welding e All joints must be braze welded e Avoid butt welds by using sleeves or enlarging one of the pipes using a pipe opener e Use silver based solders and the correct appa ratus e Guaranteea correct weld as a refrigerant leak or a faulty weld which leads to a leak later on can seriously damage the air conditioner e Always use large radius curves bending radius at ieee equal to pipe diameter Bend the pipes as fol ows e soft copper by hand or bending device hard copper use preformed curves Do not overheat the pipes when welding so as to mini mize oxidation 2 Connect the pipes to the condenser e Condensers with butt welded pipe connections cut the pipe enlarge it and weld it to the pipeline
19. need offurther written information c In generally the above mentioned information has been located in the main nameplate of relevant unit d For equipment with multiple separate discon nected refrigeration circuits in regards to differenti ates requirements on the basis of the quantity of f gas contained the required information about refrig erant charge quantities has to be listed separately for each individual circuit e For equipments with separate indoor and outdoor sections connected by refrigerant piping the label information will be on that part of the equipment which is initially charged with the refrigerant In case of a split system separate indoor and outdoor sec tions without a factory pre charge of refrigerant the mandatory label information will be on that part of the product or equipment which contains the most suitable service points for charging or recovering the fluorinated greenhouse gas es Safety data sheets of f gases used into the products are available as separate documents 16 App A HUMIDAIR humidifier A 1 Preface The HUMIDAIR represents the best humidifier technology available guaranteeing the steam as clean as possible to Tab a Humidair specifications gether with simple maintenance In order to obtain optimum performance from the HUMID AIR it is advisable to read this manual carefully MAX CYL MAX SUP MAX DRAIN ABS
20. proper high efficiency vacuum pump 10 suit able for polyester oils to the couplings Compressor intake and delivery using if available the three way Rotalock cocks coupling 1 4 SAE make sure that all three ways are open otherwise the Schrader valves welded on the pipings Three way Rotalock cock coupling 1 4 SAE of the liquid receiver 12 make sure that all three ways are open 3 Provide for a connection with refrigerant cylinder be fore making vacuum 4 Make the system vacuum up to 0 3 absolute mbar and after 3 hours check if 1 3 absolute mbar have not been exceeded This condition warrants a humidity lower than 50 ppm inside the system If the complete vacuum is not possible this means that there are some leaks to be removed according to the in structionsin 8 below NEVER USE THE COMPRESSOR TO CREATE A VAC UUM THIS INVALIDATES ITS GUARANTEE 5 Power the microprocessor control QF8 on XDFN 6 Goto the Electric Expansion Valve control display Enter in manual simulation mode and open the valve with 5 V signal see also user manual of electric expansion valve to change from automatic to manual mode and vicever sa 7 Break the vacuum as follows a Close the pump cock 10 for the vacuum 10 b Open the cock of the refrigerant cylinder 11a until the system reaches a pressure value of about 4 bar The refrigerant must be introduced IN and charged by taking only liquid fluid f
21. valve which regulates the flow rate in order to obtain the exact amount of cooling required HEATING Electrical heating if necessary the heating elements heat the air passing over them see also Control manu al DEHUMIDIFICATION optional DX mode The compressor moves 100 cooling capacity thereby causing dehumidification refer also to Control manual CW mode The chilled water valve moves on full open position thereby causing dehumidification when temperature drops below the dew point of the air N B If during dehumidification the AC outlet air tem perature drops below a specified level dehumidification will be stopped if necessary see LOW LIMIT intervention in Control manual If necessary heating is used during dehumidification mode HUMIDIFICATION optional The humidifier creates steam which is distributed into the air stream via the steam distribution pipe see also Enclosure A N B Manual control can be performed using the control sys tem see air conditioner Control manual 11 Cooling module calibrations amp regulation at start up e The air conditioner has already been factory tested For calibrations of instruments installed on the external condensers Dry coolers refer to the relevant manual e For control system calibrations refer to air conditioner Control manual to prevent erratic operations do not use temperature and rel humidity set points proportional band
22. x Check cooling water circuit x Fe Check for damage leaks and proper fixing x Make sure there is no loss of water Make sure that the water pump works properly x COOLING WATER Deaerate circuits X on ed Check whether the heat transfer medium of circuit connected system is frost proof x a Check safety equipment for function Check glycol comparing minimum yearly ambient temperature Measure the working pressures and temperatures to be done by a refrigeration X technician Check the power consumption measure head temperature and check for possible CUR abnormal operating sounds A Make sure that there is no frost building up on the evaporator and compressor x N Fluoride refrig Check function of all regulating devices power regulators valves etc x i prants increas Check safety devices for function x andare sublectiore If the quantity of refrigerant is not enough it needs to be reclaimed and refilled with strictions and norms ac completely new refrigerant ing to the national Sa European regula Check oil level at the sight glass x tions Carry out an oil test X Change the oil after every 8000 hours of operation X Check crankcase heater for function X ELECTRIC EXPANSION VALVE and See appropriate manual SUPERHEATING CONTROLLER EXTERNAL CONDENSER Dry cooler See appropriate manual if installed AIR DAMPER and i SERVOMOTORS Check correct opening closing of damper X XDFN 14 15 12 5 Refriger
23. 15 C superheating proportional band 9K other parameters at default value See the relative controller handbook enclosed in the unit for any required deeper information 11 1 3 Running modes The dedicated controller automatically manages the valve openings in order to get a suitable superheating The tem perature and pressure values are continuously read by the relevant sensors It is also possible to drive the valve in manual mode for refrig erant charge operation see para 5 2 11 1 4 New settings In order to manage unbalanced and cycling situations the valve can be differently regulated as follows 1 Strictly adhere to the suggestions available at the rele vant handbooks of valve and controller 2 Be sure about fulfilled guidelines chapter no 5 3 Allow the compressor operate for 10 minutes in manual mode 100 cooling capacity and the condensing con trol in manual mode having a suitable stable condensing temperature 4 Check on the display of EEV controller the actual value of superheating against the setted superheating and evaporating temperature value If these parameters are not stable it is possible to adjust at least two main values the superheating proportional band and the superheat ing set point 5 Restart the unit and its condensing control in automatic mode by Hiromatic 11 2 Environment protection A misuse or an incorrect calibration of the unit leads to in creased energy
24. 8 403200 fax 44 1628 403203 www eu emersonnetworkpower com marketing emea emersonnetworkpower com Bi services Bl Site Monitoring Bl Surge amp Signal Protection Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co 2005 Emerson Electric Co
25. AREA 48 Z gt SC q Fig 2 Holes on the raised floor for electrical connections RACK MODULE A A x Ss NS N SERVICE AREA N RACK AREA A gt P NS x P o SERVICE AREA d Dimensions mm A B c D With short doors 2800 1200 30 50 With all height doors 2840 1240 50 70 XDFN English Installation drawings Space requirement two Room required for the basic cooling column Please multiply by all the planned modules Fig 3 Overall dimensions Fig 4 Service Area Cooling module components Cooling module CTP TOP PLENUM AIR CONDITIONER P ZA gt X U A W C AIR CONDITIONER N g E e o eo J N a 4 CBM BASE MODULE AIR CONDITIONER APPROX NET DIMENSIONS WEIGHTS kg version COOLING MODULE 1 Depth D mm Width mm With all height With short Height mm Footprint m A Ww C doors doors X13U A W 750 1240 1200 2400 0 9 413 423 X17U A W 750 1240 1200 2400 0 9 425 435 X20U A W 750 1240 1200 2400 0 9 435 445 X23U A W 750 1240 1200 2400 0 9 445 455 X25UC 750 1240 1200 2400 0 9 410 1 Air conditioner column base module air conditioning unit top plenum English XDFN C 2 Space requirement three Installation drawings Room required for the basic rack module Please multiply by all the planned columns Fig 5 Overall dimensions Rack module compone
26. Condensers with threaded tap connections flange the pipes and connect RESPECT THE DIRECTION OF REFRIGERANT FLOW SEE LABELS ON REFRIGERANT CON NECTIONS 3 Wash out the pipelines as follows a Plug up the free ends of the pipes b Connecta helium or nitrogen cylinder fitted with a re ducer max pressure 10 bar to the 1 4 SAE Schrad er valve of the condenser c Pressurize the pipes with helium or nitrogen d Unplug the pipes instantaneously e Repeat a d several times THIS OPERATION IS ESPECIALLY IMPORTANT WHEN HARD COPPER PIPING IS USED 4 Open all the room unit shut off valve 5 Discharge the room unit pressurized with helium at 1 bar opening the charge valves so that all the branches of the circuit are discharged e g on the receiver on the low pressure side and on the compressor delivery 6 De weld the bottoms from the connections of the room unit 7 Fix weld the pipes to the connections on the air condi tioner 8 Connect the refrigerant safety valve to the outdoor with a 16 copper pipe XDFN Tab c Weight of refrigerant contained in piping during operation liquid at different condensing liquid at different condensing EXTERNAL PIPE temperatures temperatures ls gas R407C kg m R22 kg m 35 0 C 46 0 C 57 0 C 35 0 C 46 0 C 57 0 C 10x1 0 0031 0 06 0 06 0 05 0 06 0 06 0 05 12x1 0 0049 0 09 0 09 0 08 0 09 0 09
27. EMPERATURE 23 Min indoor air temperature min c max c 24 Max indoor air temperature OPERATING AIR HUMIDITY 25 Min indoor air rel humidity min 4 max z 26 Max indoor air rel humidity CIRCUIT MAX PRESSURE 27 Max refrigeration circuit pressure Digit Configuration The user will configure the system choosing in between the following alternatives The basic system is composed by six pieces to be precisely defined a Air conditioner b Base module air conditioner c Top plenum air conditioner d Rack e Base module rack f Top plenum rack Air conditioner HABHE 6 7 8 9 10 11 12 13 14 15 16 Digit 1 X Family Digit 2 and 3 Size Cooling Capacity KW approx 13 17 20 23 as DX 25 as CW Digit 6 Fan 1 ECfan Digit 7 Main Power Supply 0 400 V 3 Ph 50 Hz Digit 8 Front door and base module All height door damper on left side All height door damper on right side All height door damper on both sides Short door base module with damper on left side Short door base module with damper on right side Short door base module with damper on both sides Short door without base module CMD mo Digit 9 Humidification 0 None V Electrode humidifier Digit 10 Cooling module configuration B Basic cooling R Redundant cooling Digit 11 Monitoring 0 None 1 Via SNMP Ll Digit 5 Version A Air Cool
28. IT XDFN English Installation drawings Building the system four The air conditioner top plenum will be placed on the top In be tween the gasket Fig 10 Step 4 see detail E for gasket location WASHER D 8 4 x 32 SELF LOCKING NUT M8 LATERAL PANEL to be closed if end of system GASKET SCREW M8 x 40 TOP MODUL AC UNIT LATERAL PANEL to be closed if end of system WASHER D 8 4 x 17 SELF LOCKING NUT M8 lt gt Nas English XDFN Installation drawings Z 258 719 223 Es N DON vol N N N N N N N N N N N N N ol N N N 2 y N N TM I V l N N N N N O N DETAIL D TOP VIEW i N N N e gasket location N N NO N see the sectioned lines e gasket thickness E Ich 3mm R O N N N N N N N N N N N 5 N N N N iD Y o N N N N N N N N N N NN N d N N N N N ERBE gt Y Ke we www www ES ES ES www www Ke ew 235 if 735 230 15 T 1170 T 15 A J N N DEATIL E LATERAL VIEW gasket location See the sectioned lines gasket thickness 3 mm C 9 XDFN English Refrigerant and hydraulic conne
29. MM Precision Cooling for Business Critical Continuity XDFN Closed Loop Cooling for High Density Racks SERVICE MANUAL e S n E Liebert EMERSON Se A Caution We recommend that the manual is retained for the entire service life of the machine e the user reads the manually carefully before carrying out any operations on the machine e the control is used exclusively for the purpose for which it is intended incorrect use of the control shall release the manufacturer from any liability This manual has been prepared to enable the end user to carry out only the operations that can be made with the pende nn Any operations that require the opening of doors or equipment panels must be carried out only by quali ied personnel Each machine is equipped with an Electric Insulating device which allows the operator to work in conditions of safety Switch off the machine with this electric insulating device before any maintenance operation to eliminate risks remaining electricshocks burns automatic restarting moving parts and remote control The panel key supplied with the unit must be kept by the person responsible for maintenance For identification of the unit model and serial no in case of the necessity for assistance or spare parts locate the identi fication label on the outside of the unit 9c e amp amp amp 9 9G d Liebert Manufactured at via Leonardo da Vinci 35028 Piove
30. N B Repeatthis test inverting the manometers tocalcula te the correct Ap consider the average value of the two readings Refrigeration pipeline Pressure drops Ap bar at 45 C approx RA07C R22 Atthe same geodetic level Ap bar M1 M2 When condenser is above the room unit Ap bar M1 M2 geodetic difference m x 1 1 10 2 When condenser is below the room unit Ap bar M1 M2 geodetic difference m x 1 1 10 2 XDFN Fig j Refrigerant line components to the Electric Expansion Valve N connection on the Liquid Receiver 1 Liquid receiver valve 2 Filter dryer inlet Schrader valve 3 Filter dryer 4 Sight glass 5 Solenoid valve 9 XDFN complete system start up 9 1 Rack 42 U s space management Always use blanking panels to fill all remaining not used front U spaces in the rack Empty units U of space inside the rack could drive to a hot air short circuit back to the inlet of the equipment increas ing unnecessarily the air inlet temperature to the servers To avoid this bypass the enclosed blanking panels sup plied loose inside the rack module no 12 x size 1 U and no 5 x size 6 U must be installed in the front of the rack where there are unused vertical spaces So either a custom er device or a blanking panel must fill every space of the rack And in general cabling arrangements in the rack should be tidy and well organized in
31. ORBED SETTING POWER INDER WA PLY WATER WATER oer Gar i MAIN oy CURRENT TER VOLUME QUANTITY QUANTITY o kg h A kW m min min X13 25 KUECLA 230V 1ph 50Hz 0 6 2 0 6 5 1 5 1 70 0 6 4 0 For humidifier current FLA and rated power refer to electrical features in the air conditioner manual Unit is factory set to produce about the minimum value see Microface manual A 2 Installation The humidifier is supplied already mounted within the air conditioner The only necessary operations are the connec tions for the supply water Fig a and drain water Fig b Fig a Supply water connection SUPPLY WATER FEATURES The supply water temperature must never exceed 40 C The supply water pressure must be between 0 3 and 6 bar If greater use a pressure reducing valve set to 3 4 bar Sanitary water should be used Do not use demineralized water or water containing impurities e Conductivity range 125 1250 nS cm water gt supply CUT OFF TAP Must be included in the supply water tubing His supplied a 1 5 m long plastic supplying limit SUPPLY WATER TUBING tube with 2 G m connections ALTERNATIVE SUPPLY WATER TUBING Unscrew the ring nut A and connect a tube straight to the 3 4 G Male connection B on the humidifier English XDFN Fig b Drain water connection
32. ation circuit WHEN REPAIRING THE REFRIGERATION CIRCUIT COLLECT ALL REFRIGERANT IN A CONTAINER DO NOT ALLOW IT TO ESCAPE When either removing for repairs or charging refriger ant this must always be done on both the high and low pressure sides of the compressor simultaneously e Thecompressor copper plated steel connections should be welded with a silfos material containing a minimum of 5 silver 12 5 1 Refrigerant charge of the water cooled units W 1 Start the unit as described in para 8 1 2 Manually start the compressor ensure the unit is not in dehumidification 3 Wait a few minutes to allow conditions to stabilize 4 Check whether there are any bubbles visible in the sight glass If there are any this means there is a leak which must be traced using a leak detector and repaired then recharge the unit until no further bubbles are visible 5 Using a manometer check that the evaporating temper ature is above 0 C 6 Verify the water pressostatic valve WV setting CHAP 10 7 Verify that the superheat is 5 8 K to do this refer to Chap 10 12 5 2 Oil charge R407C The oil to be used when topping up only ifthere are any leaks is EMKARATE RL 32 3MA or Mobil EAL Arctic 22CC see Tab f and Tab g Tab f EMKARATE RL 32 3MA oil for R407C only Viscosity at 40 C Viscosity at 100 C Viscosity index ISO Grade Tab g Mobil Arctic EAL 22CC oil for R407C
33. ccumulator 9 Sight glass 20 Capacity modulating solenoid valve 10 Electric expansion valve 21 Temperature sensor for expansion valve 11 Pressure transducer for condensing control English XDFN Refrigeration circuits Fig 2 XDFN XxxUW COOLING WATER INLET COOLING WATER OUTLET POS DESCRIPTION POS DESCRIPTION 1 Capacity modulating compressor 12 Check valve 2 Crankcase heater 13 Shut off valve 3 High pressure switch HP 14 Safety thermostat for X13UW only 4 Water cooled condenser 15 Evaporator 5 Liquid receiver 16 Low pressure switch LP 6 Access valve 17 Condensing pressure control water valve 7 Safety valve 18 Pressure trasducer for expansion valve 8 Filter dryer 19 Suction accumulator 9 Sight glass 20 Capacity modulating solenoid valve 10 Electric expansion valve 21 Temperature sensor for expansion valve 11 Pressure transducer for condensing control E 2 XDFN English Refrigeration circuits Fig 3 XDFN XxxUC e To SUPPLY LIMIT RK 4 S 7 e y SUPPLY LIMIT CHILLED WATER OUTLET CHILLED WATER INLET POS Standard components Chilled water coil Chilled water 3 way valve Manual bleed valve AJOIN Water temperature sensor English XDFN E 3 Electrical connections Fig 1 Air conditioner electrical power supply 400V 3ph 50 Hz N EARTH FRONT
34. ctions Fig 1 Connections COOLING MODULE CONNECTIONS LATERAL VIEW BOTTOM CONNECTIONS DAA oy CS eg 125 REAR VIEW DET B INTERNAL AIR CONDITIONER CONNECTIONS i IL OG IWC OWG FRONT ICW OCW EC EC UNIT HD HF CD y Y POCOS 2 fo E 10 E O o N o 1 L 1 183 ett el 180 70 B DET B PREPUNCHED HOLES FOR REAR CONNECTIONS TOP VIEW POSSIBLE WITH SHORT DOORS ONLY ICW OCW EC EC HD HF CD v I d 010101010 i gt S d SCH pA a JH 999909 D D D D D i O 175 80 80 80 80 80 175 ere ee PREPUNCHED HOLES 63 Rear connections possible with short doors only gt A Version Unit Connection c IL Liquid line inlet OD 16 mm OG Gas line outlet OD 18mm ICW Chilled water inlet 1 GAS F OCW Chilled water outlet 1 GAS F IWC Water to condenser inlet 3 4 GAS F OWC Water from condenser outlet 3 4 GAS F CD Condensate drain ID 20 mm HF Humidifier feed opt 1 2 GAS M HD Humidifier drain opt ID 22 mm EC Electrical power supply Hole 0 48 mm Connection size only The dimension of the connecting pipe depends on unit model and refrigerant see Tab b Chap 5
35. d by the Regulation A Member State may in defined specific situations designate the owner as being responsible for the operator s obligations Direct methods of leakage checking approved by the manufacturer Reg 1516 2007 and Reg 1497 2007 a gas detection device adapted to the refrigerant in the System the sensitive of portable gas detection de vices as a direct test method shall be at least five grams par year b proprietary bubble solutions soapsuds Additional information located into a dedicated label of unit Reg 1494 2007 a Where fluorinated greenhouse gas is foreseen to be added to the equipment outside of the manufactur ing site at the point of installation a dedicated label accommodates notation of both the quantity kg pre charged in the manufacturing plant and of the quantity charged at the installation site as well as the resulting total quantity of f gas as a combination of the above mentioned quantities in a manner which conforms to the legibility and indelibility XDFN Our split units are usually not pre charged on facto ry in this case the total quantity of refrigerant charged in the unit has to be written in the relevant label during the commissioning operation at the installation site b Our packaged units not split operating with f gas are usually full charged on factory and the total amount of refrigerant charge is already reported on the label Inthis case the label has no
36. di Ce Padova Italy S23UAGG Bar MANUFACTURING DATE Attention data relevant to the supplied unit are indicated on the inboard label see below empty fac simile Data in the manual are referred to standard conditions and can be modified without any advance notice MODEL O SERIAL N POS DESCRIPTION 1 Compressor Full Load Ampere A VOLTAGE PHASE FREQUENCY 2 Compressor Locked Rotor Ampere A 3 Compressor quantity Stee 4 Evaporator fan Full Load A A pa GEN or vaporator fan Full Load Ampere A 2 5 Evaporator fan Locked Rotor Ampere A FAN MOTOR 6 Evaporator fan quantity FLA LRA QT 6 8 7 Condenser fan Full Load Ampere A FAN MOTOR 8 Condenser fan Locked Rotor Ampere A FLA LRA ar 9 9 Condenser fan quantity EL HEATER 10 Electrical heating Ampere A STAGES 11 11 Electrical heating steps HUMIDIFIER 12 Humidifier Ampere A STEAM OUTPUT Kach 13 13 Steam production capacity TOTAL FLA ac TOTAL FLA de Ipk KA 14 Max unit AC Ampere A A icd KA 15 Max unit DC Ampere 15 17 16 Rated peak withstand current REFRIGERANT TYPE R Kg 17 Rated short time current 18 Refrigerant type HIGH PRESS SWITCH MANUAL 19 High pressure switch Stop SET Bar RESET Bar F 20 High pressure switch Restart LOW PRESSURE SWITCH 21 Low pressure switch Stop SET er Be Ber 22 22 Low pressure switch Restart OPERATING AIR T
37. ed W Water Cooled C Chilled Water Digit 4 Air distribution U Downflow Digit 12 Top plenum 1 With top plenum O Without top plenum Digit 13 Refrigerant O R407C and with CW unit 1 R22 Digit 14 Fire detection and extinguishing 0 None 1 Fire extinguishing one bottle 2 Fire extinguishing two bottles Digit 15 Condensing control A Condensing control 0 for CW units Digit 16 Packing P PLP and Pallet C PLP and Wooden Crate S Seaworthy Digit 17 Special Requirements 0 None X Special requirement Base module air conditioner Top plenum air conditioner nnn 1215 BE LC LI CBM CTP Digit 1 2 and 3 Digit 1 2 and 3 CBM CTP Digit 4 Dampers Digit 4 Free L On left side 0 R On right side Digit 5 Free 2 Both sides 0 Digit 5 Free Digit 6 Special Requirements 0 0 None Digit 6 Special Requirements X Special requirement 0 None X Special requirement Notes e The number and the position of the dampers Air conditioner digit 8 Air conditioner Base Module digit 4 should be chosen as a function of the system lay out Having a rack column in the left side of the air conditioner column AC column a damper is needed in the left side CG or L at the same digits see Fig b Chap 3 Having rack columns in both sides of air conditioner column two dampers are required E or 2 at the same digits see AC2 column in the Fi
38. ems for instance in case of column too high or request of rear connections unit will have to be selected with short doors see also information on para 11 1 Rack digits 4 5 and 12 will be set accordingly e When the smoke detection and fire extinguishing option is chosen see para 6 3 then digit 6 of rack depends on system configuration and it has to be set as follows a 1AC column 1 rack column see Fig b Chap 3 digit 6 of rack set as A b 2 AC columns 1 rack column see Fig c Chap 3 digit 6 of rack set as A c 3 AC columns 2 rack columns see Fig d Chap 3 one rack with digit 6 set as A the other one with digit 6 as B Base module rack BBEH MEN RBM Digit 1 2 and 3 RBM Digit 4 Backup Ventilation single phase 230 V 1 Backup ventilation Digit 5 Free 0 Digit 6 Special Requirements 0 None X Special requirement Top plenum rack HABE IGE LI RTP Digit 1 2 and 3 RBM Digit 4 Backup Ventilation single phase 230 V 1 Backup ventilation Digit 5 Free 0 Digit 6 Special Requirements 0 None X Special requirement Index 1 Preliminary operations 0 00 cece III IH Hh hh m hh n 1 1 1 Packing see Fig 1 Enclosures H nae hiii e a a eem eoe ee aen 1 1 2 Inspection creto res a eine e BEE RIO A pa thee t ipee sten ed tere bee ee en 1 1 3 Handling voracidad PP RES 1 2 Operating range coss
39. erly Microface automatically drives CW valve and capacity modulation c W version only ensure that the modulating control valve equipped inside air conditioner and driven by Microface to con trol the condensing pressure is calibrated and prop erly controls the condensing water flow through the brazed and plate condenser 6 Checkthe correct position of air dampers equipped into the base module of air conditioners 7 Ensure that backup ventilation and backup air damper work properly 8 With all system working properly in local hirobus net work ensure that 8 switching off one air conditioner once a time then the redundant one in stand by if present will start to work properly and all the components air damp ers fans compressors etc will continue to run well b Coming back and switching on the air conditioner before stopped as described in point 8a the system will restart to work properly and with one air condi tioners in stand by c Switching off the air conditioner s adjacent to one rack then automatically the relative backup ventila tion will start to work Coming back and switching on the adjacent s air conditioners then backup ventila tion will be stopped and air conditioners will return to work properly d With an internal UPS installed optional for rack mod ule or with an external dedicated UPS switching off the main electrical power supply then automatically the backup ventilation star
40. exa E ew bee A SR Ces he de UE RR EACUS CR C 1 Refrigerant and hydraulic connections seeeeeeseee nnn D 1 Refrigeration and hydraulic circuits 0 cece eee eee eee E 1 Electrical connections x5 o ess a ar ee F 1 M lhtenance lt lt de PIT MN G 1 lm even T E CP H 1 English 1 Preliminary operations 1 1 Packing see Fig 1 Enclosures H The units are usually packed on a wooden pallet 1 with shockproofangle pieces in pressed cardboard 2 3 4 po lystyrene 5 panels in cardboard 6 polystyrene 7 and flexible polythene film 8 Base module and plenum are packed in pressed carboard see Fig 2 Enclosures H 1 1 1 Special packing options Special packing for sea transport consisting of a wooden box or crate can be supplied on request 1 2 Inspection On receiving the equipment immediately check its condi tion report any damage to the transport company at once 1 3 Handling Always keep the unit vertically upright and do not leave it out in the open e Transportthe unit using a fork lift truck with front shoul ders at least 1 5 m high to avoid upsetting danger Fig a Unit handling 2 Operating range 2 4 Indoor and outdoor operative limits XDFN system are provided for operating within the follow ing working ranges the limits concern new units on which correct installation has already been made For XDFN system with air co
41. g d Chap 3 e Ina XDFN system with n Rack columns and n 1 AC columns n air conditioners will be Base cooling B at digit 10 and just one should be Redundant cooling R at digit 10 e Air conditioning column AC column is supplied as standard with bottom connections and with long aesthetic doors and it is complete of base module and top plenum The entire column is factory assembled and is 2400 mm height In case of transport problems for instance in case of column too high or request of rear connections unit will have to be selected with short doors see also information on para 11 1 Air conditioner digits 8 and 12 will be set accordingly e When the smoke detection and fire extinguishing option is chosen see para 6 3 then digit 14 of air conditioner depends on system configuration and it has to be set as follows a 1AC column 1 rack column see Fig b Chap 3 digit 14 of air conditioner set as 2 b 2AC columns 1 rack column see Fig c Chap 3 one air conditioner with digit 14 set as 2 the other one with digit 14 as 1 c 3 AC columns 2 rack columns see Fig d Chap 3 two air conditioners with digit 14 set as 2 the other one with digit 14 as 1 Rack 2 gt EE 9 10 11 12 13 14 15 RAC Digit 1 2 and 3 DE RAC Digit 4 Front door and configuration 3 All height transparent door with top plenum 2 Allheight solid door with top plenu
42. g the corresponding digital scroll compressor 15 Ensure that the fans rotate in the correct direction see arrow on fan CAUTION risk of contact with rotating devices 16 Ensure that all control system settings are correct and that there are no alarms see Control manual 17 W only Verify the water flow 18 W only For closed circuit units ensure that the water pump starts when the compressor starts 8 2 Starting and stopping ALWAYS ENSURE THAT EACH CRANKCASE HAS BEEN PREHEATED FOR BRIEF STOPPAGES KEEP THE SUPPLY TO THE CRANKCASE HEATER Turn on the air conditioner by the relevant Hiromatic control The fan starts immediately the fan always works when the unit is ON after approx 30 seconds the regulation is acti vated so the cooling compressor heating electric heat ers humidifying and dehumidifying devices can start Adjust the set point as indicated in air conditioner Control manual Stop the air conditioner by the relative local OFF of Hiromat ic 8 3 Checking the refrigeration piping pressure drops The air conditioner is equipped with connections to check the refrigeration piping pressure drops room unit condenser room unit To carry out this operation it is necessary to use 2 calibrated manometers and connect them as follows M1 connected to the compressor delivery valve M2 connected to theSchrader valve 2 of Fig j When the compressoris ruuning check M1 and M2
43. he HIROMATIC Service menu Then switch it off 5 Drain the water as for 2 in para A 5 1 6 If the air conditioner features a HIROMATIC with Graphic display reset the humidifier working hours window no 1 of PARAMETER MENU to zero 7 Close the General Switch relative to the humidifier A 5 3 Annual maintenance Annually e g before any close down period carry out the following service on the humidifier see Fig c 1 Carry out the instructions in para A 5 1 N Disconnect the supply F and drain D valve wires C Unscrew and remove the drain tank T A Unscrew the drain valve assembly screws V Oo OI Unscrew and remove the drain valve solenoid O N Unscrew and remove the drain valve armature D Remove the drain valve assembly Clean all parts of the drain valve using a commercially available descaling agent to remove any incrustations 9 Detach the hose from the supply valve Remove the supply valve connection N Unscrew the supply valve F and remove it Clean the supply valve using a jet of water 10 11 12 13 Replace any hose which has become hard and brittle 14 Thoroughly flush the drain line E 15 Reassemble the humidifier by carrying out the above in structions in reverse order ATTENTION Always empty the cylinder completely before any close down period A 6 Humidifier spare part list It is recommended t
44. he use of original spare parts When placing an order quote the part code as well as the air condi tioner model no and serial no dei CODE DESCRIPTION Humidai Model Notes C 141090 Steam cylinder CLA 1 T Drain tank 1 U Filling cup 1 K Rubber gasket for drain tank 1 A 183241 Drain valve armature 1 H 183242 Drain valve housing 1 O 254007 Drain valve solenoid 1 254905 Isolator for level sensor 1 Spare part recommended Consumable material A 4 XDFN English Technical data table Tab 2 Electrical data p Power FLA LRA RESIDUAL CURRENT CIRCUIT Configuration Model supply A A BREAKERS lAn 0 3A 400V X13UA W 18 0 58 0 25A Cooling Electrical X17UA W 18 2 71 0 25A heating X20UAW ah 400V N 18 8 79 0 25A Fan compressor PE t E electrical heaters X23UA W 24 0 109 0 32A X25UC 8 0 8 0 10A X13UA W 245 65 0 32A Cooling Electrical heating X17UA W 24 7 78 0 32A Humidification X20UA W 3Ph eem N 25 3 86 0 32A Fan compressor PE T electrical heaters humidifier X23UA W 30 5 116 0 40A X25UC 15 0 15 0 20A NOTES The cables have to be sized in compliance with local standards and according to the type and characteristics e g Amperes of installation e The specific power of the user installed switch must be lower than 300 000 A x s e Prescript
45. i sses a A A e wa Ra ea ee REDE ERAT a ROO cee ae 1 2 1 Indoor and outdoor operative limits 1 2 2 Storage TEE 1 2 3 Noise level limits reote tA IR cu DRE daa AA AA Rh DOR d DE Toa 1 KEEN 2 d Installation 2 1 ll Pk pa a ele 02 Reik EON Ree raa YR TEE D EEUU 3 4 Base modulo 2400 eL A EPI PR P EE ER 3 5 Refrigeration connections o ocooocooocconnn hh hh hahaha nnn 3 5 1 Refrigeration pipeline connections A version 3 5 2 Vacuum creation and refrigerant charge 6 5 3 Refrigeration CITCUIts oer Er oV met epp nee t 6 6 Water CONNECTIONS 5 5 ele al i dee Meet De cet Loco cM auc oL ULL LENA 6 6 1 General warnings sur Ate Sab hele ee ea eae Bede did Ba ov vane deen ieee 6 6 2 lt Water connections ia A A Rae RR Gh REPERI Ge E RE eee 7 6 3 Coooling water connections W only 7 6 4 Adding ethylene glycol W only 0 cee nennen nennen rennen een ernennen 7 T Electrical connections ui a Wee ele Eta esa eat mote a mcn Rn n 8 7 1 Cooling module see Fig 1 Enclosures F 8 7 2 Rack module see Fig 2 Fig 3 and Fig 4 Enclosures P 9 7 3 Mutual connections between Cooling and Rack Module 9 7 4 Safety warnings and Standards 9 8 Cooling module start up coimas a wile eile aa aaa 9 8 1 First start up or after long standstill 9 8 2 Starting and stopping cene x dece ere Dra oce ne una aes 10 8 3 Checki
46. ibrations mm s x es AE Measure the current and power consumption x Cleaning to preserve the function X Check for soiling damage corrosion x Check state of filter X AIR FILTERS z Clean or replace if necessary X Carry out controls more frequently in dusty environments X Check for proper and functionally correct installation and surrounding conditions x Check the function of the LEDs of the display s control system and the alarms X Check the connections for electrical and mechanical function x CONTROL Check the functional elements e g operational controls and display devices x SYSTEM Check the electrical electronic and pneumatic input signals e g sensors remote x controllers command variable for compliance with nominal values Check control function control signals and safety chains x Adjust control function and control signals X HUMIDIFIER if installed See appendix A Check the power supply on all phases x SWITCH CABINET z POWER CIRCUITS Check the connections for E and mechanical function x Check the power supply at all terminals x Attention Measure power consumption at all connected consumers X electrical Set adjust and tighten the functional elements e g operational controls and display de cables and vices x electrical components of the air conditioner Check safety equipment e g thermal switch x are under voltage Replace fuses every 2 3 years X Check protective covers for completeness
47. ion time for the stand by conditioner 6 Switch on all the MCB s on the electrical panel of air con ditioners 7 Switch on all the necessary MCB s on the electrical panel of rack modules and make sure that a front and rear doors of racks are closed b thereis no air by pass from back to front of devices installed inside racks In order to avoid bypass in case of empty space the supplied blank panels must be used 8 Air conditioners will work properly and efficiently only in side the operative conditions indicated on product docu mentation 9 3 Starting and stopping 1 Use the local on off button on the relative Hiromatic to switch on off the relative air conditioner 2 In case of air conditioners system two or more air condi tioners connected via Hirobus during normal operation the Hiromatic display shows the status of each condi tioner Pushing local on off in this case we can switch off each air conditioners selecting its specific identify num ber inside 3 Backup ventilation will start under at least one of the fol lowing conditions a all the air conditioner s adjacent to the rack is are in local off alarm status or no power status b too high inlet outlet air temperature detected by the sensors mounted inside the rack connected to Mi croface c black out or lack of electrical power supply if present UPS in this case all the auxiliary circuits racks and air conditioners should be connec
48. ions and to check up the rack status during start up operations 12 3 Spare parts Only original spare parts made by Emerson Network Power may be used Using third party material can invalidate the warrantee When making inquiries always refer to the Com ponent List supplied with the equipment and specify the model number serial number and if available the part num ber as well NOTES 1 When a faulty component is replaced follow the relevant manufacturer instructions 2 When the spare parts must be welded be carefully do not damage the internal parts gaskets seals o rings etc 12 4 Monthly quarterly biannual and annual checks to be con ducted according to the following guidelines All tasks and periods listed here are regulations from the manufacturer and need to be documented in an inspection report Maintenance schedule All these tasks should be carried out only by an authorized and trained technician We rec ommend the Emerson Network Power Cus tomer Service English Maintenance schedule English MAINTENANCE PERIOD EVERY COMPONENT s 2 5151518 s 2 7 em ceo o q FANS Check for soiling damage corrosion and proper fixing X Ricci Geet Check bearings noise x reach into the fan Check blower balancing V
49. ions on the differential relay required to the user e for special places healthcare facilities etc comply with the local regulations For ordinary places a low sensitivity is suggested 300 mA coordinated with the value of the ground heater IEC 364 Ra v 50 la Art 413 1 4 1 CEI 64 8 In case of frequent over voltages with mains impulse it is advisable to install a selective differential and to evaluate the need for adopting other devices Tab 3 EC fan connections Model Standard VDC Min Max Wert VDC X13UA W 7 5 6 0 10 0 X17UA W 8 5 6 0 10 0 X20UA W 9 0 6 0 10 0 X23UA W 10 0 6 0 10 0 X25UC 10 0 6 0 10 0 NOTE The EC fan settings can be modified acting on the control display see control manual for air conditioner module Tab 4 Electrical data standard component EGEAN COMPRESSOR ELECTRICAL Component 3 Ph 400 V 10 50 Hz 3 Ph 400 V 10 50 Hz HEATING z S REFRIGERANT R407C MOTOR 3Ph 400V 50Hz Nominal Nominal Winding Nominal Model OA FLA LRA2 power OAS FLA LRA power resistance FLA power kW kw 3 Ohm kW X13UA W 1 4 3 6 0 1 0 84 6 1 10 0 50 0 3 34 3 88 4 4 3 0 X17UA W 2 0 3 6 0 1 1 22 8 0 10 2 63 0 4 25 2 75 4 4 3 0 X20UA W 2 2 3 6 0 1 1 35 8 7 10 8 71 0 4 91 2 27 4 4 3 0 X23UA W 3 0 3 6 0 1 1 85 10 8 16 0 101 0 5 68 1 79 4 4 3 0 X25UC 3 1 3 6 0 1 1 87 4 4 3 0
50. let tel 33 1 43600177 fax 33 1 43607007 Emerson Network Power GmbH Germany Liebigstrasse 9 85551 Kirchheim tel 49 89 9050070 fax 49 89 90500710 Emerson Network Power Kft Hungary 1146 Budapest Erzs bet kir lyn tja 1 c tel 36 1 273 3890 fax 36 1 422 0621 36 1 273 3897 The global leader in enabling business critical continuity EI AC Power Systems Bl Connectivity EI Embedded Power Bl integrated Cabinet Solutions Bl DC Power Systems Bl Outside Plant ES Power Switch amp Control lll Precision Cooling Emerson Network Power S r l Italy Via Gioacchino Rossini 6 20098 San Giuliano Milanese Milano tel 39 02 982501 fax 39 02 98250273 Emerson Network Power B V Benelux Rooseindsestraat 29 5705 BP Helmond tel 31 492 508520 fax 31 492 508525 Emerson Network Power Sp z o o Poland UI Konstruktorska 11A PL 02 673 Warszawa tel 48 22 458 92 73 fax 48 22 458 92 61 Emerson Network Power Russian Rep Office Letnikovskaya str 10 build 2 115114 Moscow tel 7 095 981 98 11 fax 7 095 981 98 14 Emerson Network Power SA Spain Eduardo Torroja 23 Poligono Ind Leganes 28914 Leganes Madrid tel 34 91 4957700 fax 34 9149578 49 Emerson Network Power AG Switzerland Raeffelstrasse 29 8045 Z rich tel 41 1 456 50 60 fax 41 1 456 50 70 Emerson Network Power Ltd United Kingdom Fourth Avenue Globe Park Marlow Buckinghamshire SL71YG tel 44 162
51. m 1 Short transparent door 0 Shortsolid door Digit 5 Base module 1 Base module with backup ventilation O Without base module Digit 6 Fire Detection and extinguishing 0 None A Master fire detection and extinguishing system B Slave fire detection and extinguishing system C Smoke detector Digit 7 UPS Inside 0 None GXT2 1500 for back up ventilation GXT2 2000 for back up vent and load protection GXT2 3000 for back up vent and load protection GXT2 4500 for back up vent and load protection GXT2 6000 for back up vent and load protection None PDU with 8 sockets power strip O wrod mOOUP power strip Notes igit 8 Power distribution unit PDU amp Power strip PDU with 8 sockets and 3 power strips 6 outlets each PDU with 8 sockets and 6 power strips 6 outlets each Digit 9 Monitoring 0 None 1 Via SNMP Digit 10 UPS Web Card 0 None W Web card for UPS Digit 11 Open door sensors 1 Open Door sensors Digit 12 Top plenum 1 With top plenum O Without top plenum Digit 13 Free Digit 14 Packing P PLP and Pallet C PLP and Wooden Crate S Seaworthy Digit 15 Special Requirements 0 None X Special requirement e Rack column is supplied as standard with bottom connections and with long aesthetic doors and it is complete of base module and top plenum The entire column is factory assembled and is 2400 mm height In case of transport probl
52. nditioner type A Outdoor temperature lower limit Exceeding of winter lower limits will temporarily cause a compressor stop down to 20 C below 21 C standard unit with standard Consult HPAC Technical Sales condensing control Support Outdoor temperature higher limit This limit is determined by coupled condenser model Exceeding of this limit or a lack of maintenance could cause a compressor stop by HP safety thermostat Reset to normal operation can only be carried out manually Relative position room unit vs remote condenser From unit to condenser max distance From unit to condenser max geodetic height 1 2 Requirements Pipe diameter Oil traps on vertical line of gas refriger ant Extra oil charge Condenser Additional non return valve on delivery line at 1 m from compressor Additional non return valve on liquid line after condenser All versions Indoor air conditions surrounding ftom 18 C 40 R H the XDFN system to 28 C 50 96 R H Power supply tolerances iiri ae 1 Positive difference in height condenser above conditioner 2 Negative difference in height condenser below conditioner For XDFN system with air conditioner type W Water or mixture temperature to condenser lower limit other information on para 6 4 ie For XDFN system with air conditioner type C Chilled water ci
53. ng the refrigeration piping pressure drops 10 9 XDFN complete system start up sesseeeeeee eee eee I eee eee nnn 10 9 4 Rack42U sspace management z HH Hrn anne gh e hme hers 10 9 2 FEirStstart up REENEN 10 9 9 Starting ANSP viii ieu tl et Fleet ee tette e ule Ue RR vene dte led et ee oni s 11 9 4 Suggested main checkup ooooocccccccn e rm rn 11 10 Cooling module operation enn nnns 11 11 Cooling module calibrations amp regulation at start up 0 cece eee eee ees 12 11 1 Setting the Electric Expansion Valve 0 ehh 12 11 2 Environment protection vicio rat opp pn epit Maat eden depie EEN ds 12 12 Maintenance Spare Parts 000 c cece eee nnn hh an n hh nnn 13 12 1 Safety instructions ctore er eet a e uet d de bsc doe d ia 13 12 2 Kit Hiromatic evolution L1 for Rack module see Fig 2 Enclosures G 18 12 3 Spare parts x ce cen evi cen anna aud STO Ee RIA EA GRAB ERAN Bae UR E E Ee os IAEA 13 12 4 Maintenance schedule NENNEN en 13 12 5 Refrigeration circuit i i coi A ERGODER al Oe 15 12 6 Dismantling the unit e n cnc vcre ar x xe RE EU RR NE RR ERR RE el 15 12 7 Regulation EC no 842 2006 F gas oooocccccccco ehm 15 Enclosures HUMIBAIR humidifier lt lt 5 ec ic uc hace en RN CE Run S vin a ue Rn cae CR A 1 Technical data tables are Vu SEIN le a em nr mn mnm nr atm nn B 1 Installation drawings cii s ox
54. nts Fig 6 RTP TOP PLENUM RACK Service Area Rack module SERVICE AREA BACK UP VENTILATION RAC RACK UNIT 809 RBM BASE MODULE RACK NET WEIGHTS DIMENSIONS kg version RACK MODULE 1 Depth D mm Width mm With all height With short Height mm Footprint m2 A doors doors Rack 850 1240 1200 2400 1 02 319 1 Rack column base module rack unit top plenum C 3 XDFN English Installation drawings Building the system one First locate the two base modules as shown in the drawing A gasket must be applied on the connecting surface Fig 7 Step 1 SELF LOCKING NUT M8 WASHER D 8 x 32 LATERAL PANEL To be closed if end of system SN KET SCREW M8 x 40 DOWEL M8 x 40 OPEN see detail A for gasket location BASE MODUL AC UNIT 15 1170 15 DETAIL A LATERAL VIEW T SEE EE EE EEE EE EE EE EE EEE EE SES T gasket location o o see the sectioned lines gasket thickness 3mm o o XDFN C 4 English Installation drawings Building the system two The rack will be located over the corresponding base module And then the cooling module Between the pieces the gasket Fig 8 Step 2 SELF LOCKING NUT M8 RACK WASHER D 8 4 x 17 GASKET
55. ominal op erating pressure of the circuit components Bleed air out of the circuit Adding ethylene glycol W only Tab e Ethylene glycol to be added to water freezing temperature 0 5 11 18 27 39 C ethylene glycol to add to water in weightof O 10 20 30 40 50 total mixture N B Values are for Shell antifreeze 402 For different brands check manufacturer s data NOTES XDFN To avoid stratification run the circulation pump for at least 30 min after adding any glycol After adding water to the water circuit disconnect the unit from the sanitary water piping system inthis way the water mixed with glycol won t return into the same piping system After any topping up of water check the glycol con centration and add any glycol if necessary The hydraulic features of the system vary by adding gly col Therefore check the head and the flow rate of the pump to be used English Fig h Advised Dry cooler Installation filling e water HTC disconnect M after charge Stand by pump 4 gt Qo 7 optional APPLIANCE Stand by pump pressure operated by pass E shut off valve TS thermostat mi air separator HTC Variex opt charge group filter pump d reducer non return valve K non return valve eX safety valve E Al filling meter manometer expansion tank Y drain at lowe
56. only Density at 15 C 0 967 kg l Flash point C O C 245 C Pour point lt 54 C 23 6 cSt 4 7 cSt Viscosity at 40 C Viscosity at 100 C Viscosity index ASTM D2270 130 These oils rapidly absorb the humidity present in the air when they are exposed to the atmosphere If the oil absorbs humidity the ester molecules can break down forming acidity We therefore recommend exposing the oil for as short atime as possible no more than a few minutes and in case oftop ping up using exclusively the oil indicated on the refrigerat ing compressor Normally 1 or 2 litre cans are available for this purpose once they are opened they must be completely used up They must not be used after a long period as they absorb humidity It is therefore obvious that the taps of the compressor must only be turned after the whole plant has been subjected toa vacuum and partial filling 12 5 3 Oil charge R22 The oil to be used when topping up only if there are any leaks is SUNISO 3GS XDFN Tab h Suniso 3GS oil for R22 only Density at 15 C Flash point C O C Pour point Viscosity at 40 C 29 5 cSt 4 35 cSt Viscosity at 100 C 2 Coppoer corrosion 100 C 3 hr ASTMD130 1 0 03 m x gt 30kV Neutralization value Dielectric strenght 12 5 4 Oil topping up of an installed circuit If oilleakages occur the topping up operation is necessary Contact the local Service before inter
57. rall dimensions and service area drawings in Enclosures C English XDFN 4 Installation ATTENTION The conditioner must never be installed out of doors See drawings in Enclosures C 4 4 Base module If there is no raised floor below the unit it is recommended to choose rear connections See also information on Enclosure D 1 5 Refrigeration connections 5 1 The air condensing units are delivered helium pressur ized at 1 bar Refrigeration pipeline connections A version The discharge operation of the room unit pressurized with helium at 1 bar and the de welding of the bottoms from the connections must be carried out as last operations immediately followed by the connection and emptying of the whole system A 5 1 1 General layout Tab a 1 In soft or hard copper The diameter required is stated in Tab b If the installer intends to use pipes of a larger diameter e g for long winding runs then consult HPAC Technical Sales Support Use as short refrigeration pipelines as possible to mini mize the total charge of refrigerant and the pressure drops For long runs over 30 equivalent m contact HPAC Technical Sales Support Lay the horizontal gas pipes with 1 downward gradient towards the refrigerant flow Reduce the number of bends which must be of large ra dius to a minimum Insulate the piping as specified in Tab a If the pipes are put next to electrical cables it i
58. rcuit inlet water temperature min 5 C water pressure max 16 bar Max differential pressures on the modulating valve 2 or 3 ways Max differential pressure through the closed valve Apc Mex differential pressure across the valve for modulating service APms models Apcy kPa Apms kPa X25UC 200 300 2 2 Storage limits All versions 5i dii from 5 C not condensing nen 45 C not condensing 2 3 Noise level limits The sound pressure level in free field at 1 5 m height and 2 m in front of the cooling module with compressor and fan in operations is less than 60 dBA for all models XDFN English 3 Positioning The units are available in the configurations shown below Fig b Basic configuration air path Fig c Full redundancy configuration air path one rack one air conditioner one rack two air conditioners AC UNIT 1 AC UNIT 2 Y Fig d Advanced redundancy configuration air path n racks n 1 air conditioners KT EC KZ Esc eege Li C AC UNIT 1 RACK 1 AC UNIT 2 RACK 2 AC UNIT 3 Y A d BB BIB i SS m m See ove
59. rom the cylinder c Atthis point both the vacuum pump and the refriger ant cylinder can be disconnected as follows c1 close the cylinder cock 11a c2 close the way 1 4 SAE of the Rotalock cocks and orthe connected Schrader valves 8 Inspect all connections joints using a leak detector If a leak is found empty the pipes and the condenser seal the leak and repeat the instructions in 3 7 9 Go to Electric Expansion Valve control in simulation mode close the valve at O V signal and exit from the menu Switch off the air conditioner so at the next switching on the expansion valve will be driven by its su perheating control automatically 10 Now the machine is ready for completing the charge and the start up 11 Charge the refrigerant ONLY LIQUID by means of the charge valve placed at the evaporator inlet 5 2 2 Refrigerant charge A version 1 Openthe front and rear doors of the racks if already con nected to the cooling module if any 2 Start the air conditioner in manual mode QS and QF8 on as described in para 8 1 3 Switch on the EC fan manually giving the fan speed analog output 1 equal to 80 One AC damper must be open 4 Manually start the compressor It runs automatically at 100 full load 5 Guarantee a constant condensing temperature prefer ably 42 45 C 6 Charge the unit until the bubbles in the sight glass have disappeared and the working conditions of
60. s advised to insulate them to avoid damage to cable insulation 4 There must be a minimum separation of 20 mm between XDFN the gas and liquid pipelines If this is not possible insulate both lines Support both horizontal and vertical pipes with vibra tion damping clamps which include rubber gaskets Place these every 1 5 2 m Fig e Recommended pipe layout English English Tab a Condenser positioning CONDENSER AND CONDENSER BELOW CONDENSER CONDENSER ABOVE CONDITIONER CONDITIONER AT SAME LEVEL not recommended int necessary necessary necessary gas INSULA ext only for aesthetic reasons only for aesthetic reasons only for aesthetic reasons TION li int absolutely not not necessary no expose to cold underfloor air ek ext only for aesthetic reasons only if exposed to sun only if exposed to sun room unit n room unit T o o room unit Ej LAYOUT ges gi o i liquid Oil traps every 6 m of vertical piping see Chap 2 5 1 2 Pipe diameter The diameters of the connecting pipes between the condi tioner and the condensing unit listed in Tab b must be re spected otherwise the guarantee becomes invalid Tab b Pipe diameters room unit remote condenser STANDARD PIPE DIAMETERS Valid for equivalent lengths up to 30 m copper tube copper tube MOD external diametre x
61. s which differ excessively from the Standard Set tings 11 1 Setting the Electric Expansion Valve THIS OPERATION MUST BE PERFORMED BY AN EXPERI ENCED REFRIGERATION TECHNICIAN The Electric Expansion Valve Siemens MVL 661 15 0 4 is driven by its own linear magnetic actuator 24Vac power sup plied trough a 0 10 Vdc signal coming from the controller Siemens RWR62 732 located in the front panel see Enclo sure G Fig 1 The valve is PN40 closed when not energized high resolu tion with precise positioning control and position feedback signal suitable for use with organic safety refrigerants XDFN R407C R22 R134a R410A etc See the relative hand book enclosed in the unit for any required deeper informa tion 11 1 1 Valve setting Always disconnect the unit from the power supply In the electronic housing of the valve four dipswitches has been preset at the factory dip switch 1 Off it means input for positioning control as a voltage 0 2 10 Vdc signal dip switch 2 Off it means no offset modulation starting from zero dip switch 3 Off it means position feedback as a voltage signal dip switch 4 On it means max capacity setted at 6396 of max admissible capacity of valve 11 1 2 Controller setting The Electric Expansion Valve control has been factory preset with following relevant parameters refrigerant R407C unit measurements bar C superheating setpoint 7K MOP set point
62. shut and therefore as the steam does not contain any salts the conductivity of the water within the cylinder slowly increases until the HUMIDIFIER STEAM OUTPUT is obtained The length of the start up period depends upon the water conductivity For very conductive water it may occur that the HUMIDIFIER STEAM OUTPUT is obtained immediately A 5 Maintenance A 5 1 Removing the steam cylinder To remove the steam cylinder proceed as follows see Fig C 1 Open the General Switch relative to the humidifier 2 Drain all the water from the cylinder by activating HUM DRAIN in the CONTROL Service menu several times see Control manual 3 Disconnect the steam hose S made of non conduc tive rubber XDFN 4 Disconnect the power electrode wires P and level sen sor wire L 5 Undo the clip R 6 Pull the cylinder C out of its gland at the bottom G A 5 2 Replacing the steam cylinder When the steam cylinder is approaching the stage where it needs to be replaced warning A25 is generated see Con trol manual to advise the user that the cylinder must be re placed To replace the cylinder proceed as follows see Fig c 1 Carry out the instructions in para A 5 1 2 Using the new cylinder carry out 4 6 of para 5 1 in re verse order 3 Connectthe steam hose S the clip on the hose needs to be tightened only slightly 4 Manually switch the humidifier on for 2 3 minutes in t
63. st point See hydraulic drawings in the Enclosures D 7 1 Cooling module see Fig 1 Enclosures F e Connect the cable to the Line inlet terminal board e Use the cable size defined according to the flow the supply voltage and the installation type 7 1 1 Power input P e Protect the supply using a back up fuse Power Supply 400 V 3N 50 Hz c EARTH Do not fit the supply cable in the raceways inside the Cable power size 4x6 mm EARTH machine electric board e Use multipolar cables with sheath CEI20 22 only 7 1 2 Electrical connections 3 Wiring connections Fig i e Connections for remote on off consent must be 1 Before proceeding with the electrical connections en done by the installer NR components are undamaged The General Alarm terminals allow remote alarm sig d nalling e all terminal screws are tight 5 er GE e the supply voltage and frequency are as indicated on 4 In case of short circuit check the sticking of the involved the unit switch and possibly replace it 2 Power supply cable connections Fig i Cooling module electrical connections AUXILIARY TERMINAL BOX remote on off 2 CLOSED ON 020 clogged filter CF 90 OPEN OK 91 water leakage LWD r1 102 GENERAL ALARM 400 401 400 NC NC alarm or unit off 401 C 402 NO operating fan 70 CLOSED ON
64. such a way to avoid restriction of the airflow section 9 2 First start up Part one Following operations must be done switching off the electri cal power 1 Connect al the air conditioners if more than one togeth er with the Hirobus cable cables for emergency ventila tion and for dampers between contiguous air condition ers 2 Follow the instructions in the air conditioner control manual 3 Verify the correct electrical connections between the air conditioners and between air conditioners and racks see electrical connections inside the manual and specif ic wiring diagram included inside the unit 4 Remember that the auxiliary circuits of the air condi tioner and the auxiliary circuits of the rack should be connected to an internal optional or external UPS For air conditioning unit XDFN it is necessary to re 10 11 move the bridges N1 N8 and R1 R8 and connect the terminals R8 N8 PE 230Vac 50Hz to the UPS Part two Power supply the auxiliary circuits of air conditioners switch ing on the relative magnetic circuit breaker MCB 5 In the air conditioners Hirobus network make sure to have set via Hiromatic a number of cooling modules member of the Hirobus network b if there is a redundant conditioner define one of them in stand by status The system microprocessor control automatically gives an LD number to each air conditioner the number one as master C define the rotat
65. ted to an UPS uninterruptible power supply Internal UPS is sup plied as a rack option 9 4 Use the following check list to have a first general check up of the system Adhere to all safety information and instruction given in the service manual and all local regulations Suggested main checkup Once the system is operating under load check the various components as follows 1 Verify that one air conditioner if more than one is in Stand by and all others are working properly without any warnings or alarms activated 2 Verify that fans are running properly Microface control ler automatically drives fan speed 3 Ensure that the temperature and relative humidity are being controlled and the humidifier optional operates when required The Microface controller for this applica tion is designed to control the conditioner air delivery temperature i e the inlet air temperature to the rack and to control the air relative humidity measuring this value at the inlet side of air conditioners 4 Ensure that digital scroll compressors are operating properly Microface controller automatically drives com pressor and cooling capacity modulation XDFN 8 A version only ensure that the condensing controller equipped in side air conditioner and driven by Microface is cali brated and properly controls the external condenser fan operations b C version only ensure that chilled water 3 way valve is working prop
66. the entire re frigeration circuit have become normal and assuring a subcooling of about 4 K 7 Verify that the superheat is about 7K 5 3 Refrigeration circuits See drawings in Enclosure E 6 Water connections 6 1 General warnings ENSURE THAT THE TUBING DOES NOT OBSTRUCT THE AIR FLOW Under only IF THE TUBING IS TO RUN OUTDOORS ADD ETHYLENE GLYCOL TO THE CIRCUIT AS DESCRIBED IN PARA 6 4 6 2 Water connections Condensate drain Fig 9 Use galvanized steel PVC or flexible polythene tub ing e Allow a 2 gradient towards the drain There must be a drain trap 1 placed on the rear side of the air condizioner base module Fillthe drain trap with water 2 Fig g Condensate drain min 25 cm min 10 cm BRACKET ATTENTION po v OF THIS DRAIN TRAP THE CONDENSATE WILL OT CUT THE BRACKET OR THE DRAINING or BE AFFECTED a THE DRAIN TRAP WITH WATER BEFORE ART UP TO AUOID SPRAYING CONDEN TO AUOID WATER LEA an KACES USE TEFLON T A io be BETWEEN FLEXIBLE TUBE AND CONNECTING connected by user Humidifier optional See Enclosure A 6 3 Coooling water connections W only The unit must receive cooling water as follows from an external cooling water source in open circuit para 6 3 1 and Figures in Enclosures using a Dry cooler in closed circuit para 6 3 2 Connect the piping as shown in Enclosures D
67. ts up And on the contrary Switching on the main power supply automatically the backup fan turn off and the air conditioners will start to work properly 10 Cooling module operation Unit operation is completely automatic The below sequence explains how the unit operates Theair sucked in by the fan s enters into the AC mod ule The air is immediately filtered into the AC module e The HUMITEMP temperature rel humidity sensor veri fies the state of the inlet air and relays this information to the control system e Another temperature sensor verifies the state of the outlet air air conditioner delivery and relays this information to the control system The treated air passes through the fans which operate continuously and is then dispersed out of the unit The control system compares the relayed information to the set point and proportional band values programmed into its memory it then commands the air conditioner to treatthe air as follows see also air conditioner Control manual COOLING Direct expansion mode DX The compressor is started and the cold refrigerant flows English English through the evaporator thus cooling the air passing over it For fan and compressor operation see Control manu al Chilled water mode CW The chilled water flows through the chilled valve coil thus cooling the air passing over it The chilled water flow is controlled by a 0 10 Vdc proportional
68. vention 12 6 The machine has been designed and built to ensure contin uous operation The working life of some of the main components such as the fan and the compressor depends on the maintenance that they receive Dismantling the unit The unit contains substances and components hazardous for the environment electronic com ponents refrigerating gases and oils At the end of the useful life when the unit is dismantled the operation must be carried out by specialized re frigerating technicians The unit must be delivered to suit able centers specialized for the collection and disposal of equipment containing hazardous substances 12 7 Regulation EC no 842 2006 F gas Stationary air conditioning refrigeration heat pump equipments and stationary fire protection systems placed into the European Community market and oper ating with fluorinated greenhouse gases f gas such as R407C R134a R410A they have to comply with the F gas Regulation applied since 04 July 2007 Be aware that refrigerants as R22 are not f gas and their relevant regulation is Reg EC no 2037 2000 Following notes have to be considered when operating with the above mentioned equipments e Fluorinated greenhouse gases are covered by the Kyoto Protocol Thefluorinated greenhouse gases in this equipment should not be vented to the atmosphere e Referring to the value noted in Annex of Regulation EC No 842 2006 here
69. will be EMKARATE RL 32 3MA 2 Unit coupled with remote condenser suggested for ambient temperature up to 35 C The final charge must be precisely defined in field 3 For distance D see Fig 1 4 Topping up is requested for short pipeline too due to the extra charge of refrigerant N B The air conditioner is supplied pressurized with helium at 1 bar Fig 1 Pipeline air conditioner condenser Distance D a b c AC Conditioner COND Condenser Tab 9 Refrigerant and oil charge for water cooled models W type MODEL ee ag ei OIL CHARGE liters X13UW 42 136 Xi7UW 42 195 X20UW 45 177 X23UW 48 2 51 N B The air conditioner is supplied complete with refrigerant and oil 1 The recommended oil for units with R407C refrigerant is EMKARATE RL 32 3MA For units with R22 refrigerant pay attention to compressor label if requested mineral oil this will be SUNISO 3 GS if requested ester oil this will be EMKARATE RL 32 3MA English XDFN Installation drawings Space requirement one First be sure to have the space in your area available and the holes on the raised floor for electrical refrigerant connections and data cables Fig 1 Hole on the raised floor for piping and electrical connections COOLING MODULE A A A lt N SERVICE AREA 7 gt UNIT AREA NS amp a SERVICE
70. za 300 301 302 WARNING ALARM 3000 3010 3020 English XDFN 7 1 3 Protection degree IP2x check After whole of the connections and installation works check and verify the protection degree IP2x protection against fin ger access std IEC 60364 1 at the boundary of the air conditioner 7 1 4 Protective features of EC fan The EC fan has been provided with the following protective features e Over temperature of electronics e Over temperature of motor e Locked rotor protection e Short circuit at the motor output With any of these failures the motor stops electronically no potential separation the status relay is released NO automatic restart To reset the alarm power supply has to be switched off for min 20s once motor is at standstill Mains under voltage detection if mains voltage falls below 3ph 290Vac typical value for 5s minimum motor will be swithed off only by elec tronics no potential separation status relay is released If mains voltage returns to correct values the motor will restart automatically e Phase failure recognition if one phase failes for 5s minimum motor will be switched off only by electronics no potential separa tion status relay is released If all 3 phases return to correct values the motor will restart automatically within 10 40s The power supply for an external speed setting potentiome ter is short circuit protected

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