5 ventilation and cooling – GE Industrial Solutions LP33 Series 80 & 100 Installation Guide User Manual
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OPM_LPS_3UI_80K_M10_1US_V010.doc
Installation Guide LP33 Series 80 & 100 UL S1
3.5 VENTILATION AND COOLING
The heat produced by the UPS is transferred to the environment by its internal fan(s).
Airflow through the UPS
It is important that the cooling air can freely flow
through the air inlets and outlets of the UPS.
Fig. 3.5-1 Airflow through the LP33 Series
NOTE !
Insufficient distances on both sides of the
UPS could increase the temperature inside
the UPS.
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. 3.5-2 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. 95°F (35°C), 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
LP33 Series 80
28670 BTU/hr
8.40 kW
5018 BTU/hr
1.47 kW
1400
CFM
2380 m
3
/h
254
CFM
430 m
3
/h
LP33 Series 100
36860 BTU/hr
10.80 kW
5564 BTU/hr
1.63 kW
1800
CFM
3060 m
3
/h
281
CFM
477 m
3
/h