Manuale d’uso / di manutenzione del prodotto 60 HZ del fabbricante Liebert
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H EAT R EMOVAL /E NVIRONMENT AL C ONTROL Dr ycooler s - 60 Hz G ENERAL D AT A.
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i T ABLE OF CONTENTS L IEBERT D RYCOOLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 F EATURES AND B ENEF IT S OF L IEBERT D RYCOOLERS . . . . . . . . . . . . . . . . . . . . . .
ii Figures Figure 1 Drycooler model numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 Capacity correction factor . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 L IEBERT D RYCOOLERS Liebert drycoolers are designed to be used in conjunctio n with water cooled refrigerat ion and air conditioning machines as well as a variety of commercial and industri al applications requiring the rejection of heat from machinery or processes via a cooling fl uid.
2 F EATURES AND B ENEFITS OF L I EBERT D RYCOOLERS Heat Rejection Module The low-profile direct-driv e propelle r-fan type drycoolers utilize optimum circuitry to balance the heat rejec- tion of the corresponding load. Constructed of al uminum with a copper-tube aluminum coil, the unit is quiet and corrosion resistant.
3 S ELECTION P ROCEDURE Table 4 shows the performance specifications for Liebert drycoolers using a 40% by volume ethylene glycol solution at an av erage fluid temperature of 115°F with flow rates from 1.5 to 3 GPM/circuit and at standard air (.0 75 lbs/ft 3 ).
4 P ERFORMANCE D AT A T able 4 Drycooler perform ance dat a Model Number GPM Range No. of Circuits MBH/°F Initial Temperature Difference 1.5 GPM/CIR 2.0 GPM/CIR 2.5 GPM/CIR 3.0 GPM/CIR MBH/ITD PD ft. water MBH/ITD PD ft. water MBH /ITD PD ft. water MBH/ITD PD ft.
5 Figure 2 Cap acity correct ion factor Figure 3 Pressure drop correction fac tor Quiet-Line Models 040 6-12 4 1.4 7.4 1.5 11.4 1 .6 17.0 1.7 23.5 12-24 8 * 1.6 3.9 1.7 5.9 1.8 8.9 1.8 12.3 057 18-36 1 2* 2.1 3.6 2.2 6.1 2.3 8.6 2.3 11. 9 24-48 16 2.2 3.
6 D IMENSIONAL D AT A Figure 4 Dimensional dat a—1-4 fan models Figure 5 Dimensional dat a—6 & 8 fan models Figure 6 T ypical footprint and unit anchor plan Eyebolt s for lif ting condenser pr.
7 T able 5 Drycooler physic al data Drycooler Model Circuits A B C L #Fans & Motors** Conn FNPT In/Out Standard Models -033 any 42 - 44 51.5 1 3/4 -069 any 42 - 44 51.5 1 1-1/4 -092 any 42 - 44 51.5 1 1-1/2 -109 any 42 - 44 51.5 1 2 -112 any 42 - 44 51.
8 E LECTRICAL D AT A T able 6 Drycooler electrical dat a # of F a n s 123468 Model # 33,69,92,109,112 139,174,197,22 5 260,310,350 352,419,466,491 620,650,700 790,880,940 Pump Hp ph FLA WSA OPD ph FLA WSA OPD ph FLA W SA OPD ph FLA WSA OPD ph FLA W SA OPD ph FLA WSA OPD 208/230/60 0.
9 T able 7 Drycooler electrical dat a—Quietline models # of F a n s 123468 Model # 40,57,6 0 80,111,121 158,173,178 205,248 347,356 453,498 Pump Hp ph FLA WSA OPD ph FLA WSA OPD ph FLA W SA OPD ph FLA WSA OPD ph FLA W SA OPD ph FLA WSA OPD 208/230/ 60 0.
10 G UIDE S PECIFICATIONS St andard Features for Direct Drive Propeller Fan Drycoolers Furnish and install Liebert Model ________ Air-Cooled Drycoo lers, arranged for vertical air flow. Dry- coolers shall be draw-through design and shall perform in accor- dance with the schedule.
11 C OMPONENT A SSEMBLY /I NST ALLATION Leg Assembly The legs are shipped loose and are to be field mounted as shown with the hardware provided. Rigging Holes in the drycooler legs permit lifting the unit. Spreader bars are required. Four, 6 and 8 fan models have additional lifting eyes.
12 A PPLICATION /I NST ALLATION G UIDELINES Location Guidelines To ensure an adequa te air supply, locate drycoolers in a clean air area , away from loose dirt and for- eign matter that may clog the coil. In addition, drycoolers must not be placed near steam, hot air, or fume exhausts.
13 P UMP P ACKAGES & E XP ANSION T ANK - O PTIONS Figure 8 Pump p ackage Figure 9 Pump mounting Notes 1. Sin gle pump packages are 17-1/4" (438 .2 mm) wide. Dual pump packages are 32-1/4" (819.2 mm) wide. 2. Mounting holes are 15-11/32" (389.
14 S UPPLEMENT ARY A PPLICATION D AT A T able 9 Room dew point temperature s Dry bulb °F (°C) Wet bulb °F (°C) Rel. hum. % Dew point* °F (°C) 70 57.
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The Comp any Behind the Product s With over a million installations around th e globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a c.
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 60 HZ 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 60 HZ - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Liebert 60 HZ imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Liebert 60 HZ ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Liebert 60 HZ, 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 60 HZ.
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 60 HZ. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Liebert 60 HZ 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.
