Manuale d’uso / di manutenzione del prodotto XDP del fabbricante Liebert
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Precision Cooling For Business -Critic al C ontinuity™ Li eber t ® XDP ™ Us er Manual–50-60 Hz; 160kW No minal C apac it y.
G ENERAL S AFETY G UIDELINES NOTICE Risk of piping and component rupture. May cause injury or equipment damage. Do not close service valv es without foll owing recommended procedures for repair, maintenance and replacement of components. Closing service valves may isolate liquid refrigerant, causing high pressure and rupture of piping.
i T ABLE OF CONTENTS G ENERAL S AFETY G UIDEL INES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I NSIDE F RONT C OVER 1.0 P RODUCT D ESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii 4.3 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.3.1 Viewing or Changing Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii FIGURES Figure i Model number nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Front Cover Figure 1 Liebert XD P components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv.
Product De scription 1 1.0 P RODUCT D ESCRIPTION 1.1 General Product Information 1.1.1 Product/System Description Liebert’s XDP refrigerant dist ribution unit is an interface between the b uilding chilled wa ter system and the cooling modules in the Lieb ert XD system.
Product De scription 2 1.3 Equipment Handling 1.3.1 Handling With Skid • Always keep the unit upright, in doors and protected from damage. • If possible, tran sport the unit using a forklift truc k. Otherwise use a crane with belts or cables. In either case, do NOT press on the top edges of the packaging.
Product De scription 3 4. Remove the two (2) end deck bo ards from one en d of the pallet and the a ttached, notched section of the center runners (refer to Figure 3 ).
Product De scription 4 8. Remove the run ner from which all lag bolts have be en removed (refer to Figure 6 ). Figure 6 Remove runner from p allet 9. Using the pallet jacks, raise th e secured unit to the hi ghest point that the piano jacks will allow.
Product De scription 5 1.4 Mechanical Considerations 1.4.1 Positioning the Liebert XDP Install the Liebert XDP according to the site specific documentation and secure the unit to the floor. The Liebert XDP can be installed near a wall or another Liebert XDP.
Product De scription 6 Figure 9 Piping access point s T able 2 Unit piping outlet conne ct ion sizes, inches, OD Cu Model Pipe Connection Point 5 0 / 6 0 H z ABCD XDP160 2-1/8 1-1/8 2-5/8 2-5/8 Dimensions are approximate and subject to change without notice.
Product De scription 7 1.5 Electrical Information 1.6 High V oltage Connections Make sure the actual supply voltage and f requenc y correspond to the voltage and frequency indicated on the Liebert XDP’s rating plate. The unit must be installed in accordance wi th national wiring reg- ulations.
Product De scription 8 2. Determine which kn ockouts in the electrical enclosure will be used and rem ove them (see Figure 11 ). Figure 1 1 Electrical enclosure knocko ut locations for field wiring 3.
Product De scription 9 Figure 13 High volta ge connections—50Hz 1.7 Extra Low V oltag e (EL V) Connections Extra Low Voltage power output is 30V and 100VA or less. 1. Turn off all unit power before connecting cables or wires. Failure to do so may damage this equipment (refer to Figure 14 ).
Product De scription 10 Field Connections—All Unit s • Connect the control display panel cable to term inal block TB3 terminals 1 through 4 on the Lie- bert XDP control board as shown (refer to Figure 15 ). The display panel ma y be mounted on the Liebert XDP’s front right door if the Liebert XDP is located in the area that it condi tions.
Piping 11 2.0 P IPING 2.1 European Union Fluorinated Greenhouse Gas Requirement s Stationary air conditioning, refrigerat ion, heat pu mp equipments and stationa ry fire protection sys- tems in the Eu.
Piping 12 2.3 Liebert XDP Interconnection wit h Liebert XD Cooling Modules All piping must be ASTM (American Society fo r Testing and Materials) Type L copper p ipe. The Liebert XDP may be connected to Liebert XD c ooling modules with either Liebert’s XD prefabri- cated piping assembly or with rigid, of f-the-shelf pi ping.
Piping 13 Figure 17 Byp ass flow controller det ails, dimensions Figure 18 Byp ass flow controller arrangement Figure 19 Byp ass flow controller piping 7/8 ” (22mm) ID 4 ” (102mm) Re t u r n Main .
Piping 14 2.5 Piping Details—Shut -Off/Isolation V alves To allow for mai ntenance of the Liebert XDP, isolation valves must b e installed on the ch illed water circuit (see Figure 20 ). Figure 20 General piping det ails 2.5.1 Piping Inst allation Method All piping should be installed with hi gh temperature brazed joints.
Piping 15 2.6 Checklist for Proper Inst allation ___ 1. Unpack and check received material. ___ 2. Position the Liebert XDP and secure it to the floo r. ___ 3. Wire high voltage connections. ___ 4. Wire low voltage connections. ___ 5. Connect the building chilled water piping to the Liebert XDP.
Checklist for Liebert XDP Startup 16 3.0 C HECKLIST FOR L IEBERT XDP S T ARTUP 1. Verify that bypass f low controllers were instal led (if a pplicable), see Table 4 . 2. Check all isolation ball valves in the Liebert XD P and Liebert XD cooling module and v erify that all are open.
Checklist for Liebert XDP Startup 17 If there is no “Loss of Fl ow” alarm present —This suggests that th ere is flow. Test the pressure differential by closing the ball valve on either the suct ion line or discharge line to stop the flow. This should prompt an alarm for “loss of flow on P1.
Checklist for Liebert XDP Startup 18 T able 6 System R-134a charge for a Lieber t XDP with any model Liebert XDH/Liebert XDO/Liebert XDV/Liebert XDCF Refrigerant Charge, lb (kg) Per Liebert XD Unit (Excludes Connector Lines to and from Liebert XD Cooling Module) 157 lb.
Checklist for Liebert XDP Startup 19 3.1.1 Calculating Refrigerant Charge—Example Using Tables 6 , 7 , 8 and 9 , calculate the refrigerant charge of the indi vidual sections of your Liebert XD system.
Microprocessor Control 20 4.0 M ICROPROCESSOR C ONTROL 4.1 Feature Overview The microprocessor control for th e Liebert XDP features an easy -to-use menu-driven LCD. The menus, control features and circuit board detai ls are described in this section.
Microprocessor Control 21 4.2 Controls The Microprocessor Control for the Liebert X DP featur es an easy-to-use, menu -driven liquid crysta l display. The menus, control features and circuit board de tails are described in this section.
Microprocessor Control 22 4.3.2 SETPOINTS Selecting SETPOINTS from the Main Menu will reveal the following menu items: MIN TEMP SP Minimum Room Temperature Setpoint —This is used to keep the room temperature above the set- point. The Lieb ert XDP can lower the roo m temperature too much depend ing on the room dew poi nt and load.
Microprocessor Control 23 4.3.6 TIME To change the time, press ENTER to select the fu nction, then use the Up or Down arrow key to change the first character, press EN TER to store, then press the Up or Down arrow key to change the second character, press ENTER to store, etc.
Microprocessor Control 24 PUMP W AIT TD The user may set the pump wait ti me delay to prevent the pump from continuing to run when refrig- erant is not flowing. When the control detects a lo ss of refrigerant flow, the pump continues operating for the period speci fied in the PUMPWAIT TD.
Microprocessor Control 25 V A L VE TIME This value is the numbe r of seconds it takes the control val ve to travel from fully closed to fully ope n. If the control loses the analog feedba ck position from the control valve, the control will close the valve, then calculate how long to open the valve for the current call for cooling.
Microprocessor Control 26 Change Password—SERV ICE P A SSWORD The factory default SERVICE PASSWORD is “123”— this password protects setup operati ons and more-critical alarm settings. To change the SERVICE PASSWORD: 1. Press the MENU key to displa y the Main Menu.
Microprocessor Control 27 4.3.14 CUSTOM ALARMS This is the menu where the use r selects the alarm me ssage that will be displayed when there is an input to the customer alarm input on the control bo ard.
Alarm Descriptions and Solutions 28 5.0 A LARM D ESCRIPTIONS AN D S OLUTIONS 5.1 Alarm Descriptions • LOSS OF FLOW P1 —Activated when Pump 1 is commanded to run and the differential pres- sure switch does not sense differen tial pressure (set at 6 psi; 41 kPa; 0.
Alarm Descriptions and Solutions 29 • REFRIG SENS FAIL —Activated when the cont rol stops receiving a s ignal from the refrigerant temperature sensor. If this alarm becomes active, the control will close th e control valve over a 9-minute period. This alarm will shut down the Liebert XDP.
Alarm Descriptions and Solutions 30 5.3.2 Increase or Decrease Alarm T ime Delays An alarm time delay is the time that the a condition must exist before the control activates an alarm for that conditio n. This can be used a s a filter to prevent nuisance alarms from transient ev ents.
Trou bleshoot ing 31 6.0 T ROUBLESHO OTING T able 16 T roubleshooting the XDP Symptom Possible Cause Check or Remedy Pump will not energize No main power Check L1, L2 a nd L3 for rated voltage. Loose electrical connection s Tighten connections. Overloads tripped Allow pump to cool.
Maintenance 32 7.0 M AINTENANCE The Liebert XD system components require little maintena nce when proper fl uid levels are mai n- tained and proper startup and operation procedu res are followed. The follow ing tasks should be per- formed at the intervals stated: 1.
Specifications 33 8.0 S PECIFICATIONS T able 17 Liebert XDP160 specifications Models XDP160RC--1 XD P160RA--1 XDP160RM--1 Cooling Capacity, Nominal 160kW / 46 Tons, 60Hz 140kW / 40 Tons, 50Hz Each capacity is based on 45ºF (7ºC) ente ring water temperature and 140gpm (530lpm) wa ter flow rate.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Liebert XDP è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Liebert XDP - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Liebert XDP imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Liebert XDP ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Liebert XDP, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Liebert XDP.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Liebert XDP. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Liebert XDP insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
