
W A R N IN G ! Us er s erviceable co m p o nen ts (F o r s ervice pers o nn el)
A ll eq u ip me n t m ain te na n ce an d s ervicin g p ro c ed u res in vo lvin g in te rn al ac ces s req u ires th e u s e
o f a to o l an d sh o uld b e carried o u t o n ly b y train ed p ers o n nel. T h ere are n o u s er-s erviceable
parts beh in d co vers req uirin g a to o l/ k ey fo r rem o val.
W A R N IN G ! B attery vo ltag e exceeds 4 00 V dc (F o r s ervice pers o nn el)
1. A ll p hys ical b attery m ain ten an ce an d s ervicin g p ro ced u res req u ires th e u s e o f a to o l/ k ey an d
s ho u ld b e carried o u t o n ly by train ed p ers o n n el.
2. T ak e s pec ial care w h en w o rk in g w ith th e b atteries as s o ciated w ith th is UP S. W h en co n n ected ,
th e b attery term inal vo ltage w ill exc eed 4 00 V dc an d is p o ten tially leth al.
3. B a ttery m an u fac tu rers s u p ply d etails o f th e n ec es s ary p re ca u tio n s to b e o b s erved in w o rk in g
o n , o r in th e vicin ity o f, a larg e b an k o f b attery cells . T h es e p recau tio n s s h o u ld b e fo llo w ed
im plic itly. P artic ular atten tio n s h o uld be p aid to th e reco m m en datio n s co n cern in g lo cal
en viro n m en tal c o nd itio n s an d th e p ro vis io n o f pro tective clo th in g, firs t aid , an d fire-fig h tin g
facilities.
W A R N IN G ! G en eral s afety (F o r u s ers )
1. Lik e o th er typ es o f large p o wer equ ip men t, th e UP S an d b attery c ircu it b reak er bo x/ battery
cab in et h ave h igh vo ltage in side. A s th e c o mp o n en ts w ith h ig h vo ltag e can b e acces sed o n ly
w hen th e fro n t do o r is o p en ed , th e ris k o f co n tactin g h igh vo ltag e h as b een m in im ized . T h is
eq uipm en t m eets th e IP 20 s tan dard , an d th e o th er safety s hields are pro vid ed in side th e
eq u ipm en t.
2. T h ere w ill n o t b e an y ris k w hen o p eratin g th is equ ip m en t ac co rd in g to th e g en eral
in s tru ctio n s an d th e s tep s reco m m en d ed in th is m a nu a l.
W A R N IN G ! M u ltip le p o w er in p u ts (F o r u s ers )
1. T his UP S s ys tem receives p o wer fro m m o re th an o n e s o urce. Dis co n n ectio n o f all A C s o urce
an d th e DC s o u rce is req u ired b efo re s ervic in g.
2. Th is UP S has several circu its th at are en ergized w ith h ig h A C as w ell as DC vo ltages. Ch eck
fo r vo ltag e w ith b o th A C an d DC vo ltm eters b efo re w o rk in g w ith in th e UP S .
W A R N IN G ! W h en in tern al fu s e o f th e U P S is d am ag ed , it m u s t be rep lac ed w ith fu s e o f th e
s am e elec tric p aram eters b y q u alified p ers o n n el.
1 Important Safety Instructions
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Vertiv™ Liebert® APM Plus User Manual