Cooling And Air Flow Direction; Figure 6A) - Module Air Flow, Pws-F; Figure 6B) - Module Air Flow, Pws-W - Eltek Valere PWS Series User Manual

DC/AC Inverter
PWS series
User Manual
Page 12 (24)

2.6 Cooling and air flow direction

The PWS units are cooled with an internal fan. The airflow is from the front to rear side (PWS-F version),
from bottom to top (PWS wall cabinet version). The fan is monitored and speed-controlled dependent
on module temperature. To provide sufficient air flow, a minimum space (see figure 6a), item "A") of 50
mm is required between the rear panel of the module and the rear cabinet wall as well as an unob-
structed supply of air to the front of the module. For PWS-W a minimum space of 2U (approx. 90mm)
above the top of the module (see figure 6b), item "A") is recommended.

Figure 6a) - Module air flow, PWS-F

Figure 6b) - Module air flow, PWS-W

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