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In this configuration it is important to leave at least ½RU air gap above the shelf and also enough spacing at the
bottom to allow the required minimum airflow (see Figure 16).
Figure 17 — Forced air cooling configuration with external air flow (19"/23")
Spacing at the bottom is
not fixed. It is dictated by
the need to satisfy the
required minimum airflow
as specified in the LFM
graph.
Minimum ½RU Air Gap
Closed/hard surface
Minimum LFM
reference point
Inlet Air = Ambient temperature
(Ta) reference point
7/8"
22mm
MIN
AIR SPEED BASE ON LOADING,
REFER TO "LPS36 LOAD VS REQUIRED AIR FLOW CHART"
LPS36 COMPACT COOLING WITH EXTERNAL AIRFLOW
CLOSED / HARD SURFACE
Figure 18 — Thermal Management, Forced Air