GE Industrial Solutions LP 33 Series 50 & 60 kVA Installation Guide - Manual (Page 19)

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OPM_LPS_3UI_50K_60K_0US_V010.doc Installation Guide LP 33 Series 50-60 kVA
3.5 VENTILATION AND COOLING
The heat produced by the UPS is transferred to the environment by its internal blowers.
Airflow through the UPS
It is important that the cooling air can freely flow
through the air inlets and outlets of the UPS.
Fig. 4.5-1 Airflow through the LP 33 Series
NOTE !
Do not put any object on the top of the
cabinet: it might obstruct the air flow.
Heat evacuation from UPS room
The heat must be evacuated from the
environment with a proper cooling /
ventilation system provided by the
user.
Fig. 4.5-2 Heat evacuation from UPS room
Air volume and losses of the UPS
The approximate minimum air volume needed to evacuate the heat generated by the UPS, for inlet
temperature max. 35°C (95°F), for the standard version at inverter nominal load with PF = 0.9 lag. and
battery charged, are the following:
Losses Cooling air flow
UPS model
VFI Mode ECO Mode VFI Mode ECO Mode
LP 33 Series / 50 kVA
16690 BTU/hr
4.89 kW
3482 BTU/hr
1.02 kW
847 CFM
1440 m 3 /h
173 CFM
294 m 3 /h
LP 33 Series / 60 kVA
20478 BTU/hr
6.0 kW
4164 BTU/hr
1.22 kW
1040 CFM
1767 m 3 /h
211 CFM
359 m 3 /h