5702269-C Installation 5-3
Pinnacle™ Plus+ 10 kW
COOLING REQUIREMENTS
For the Pinnacle Plus+ supply to be sufficiently cooled, the cabinet must be set up to:
• Bring in sufficient coolant air of the correct temperature (0 to 40ºC maximum)
• Distribute coolant air to the power supplies
• Prevent air exhausted from the cabinet from circulating back and becoming input
air
• Exhaust the hot air from the cabinet with minimal airflow restriction
See Figure 5-2 on page 5-4 for a dimensional diagram.
Cabinet Design
The following is a synopsis of the principles to follow when designing a cabinet
containing a stack of Pinnacle Plus+ power supplies.
Coolant air must be drawn easily into the cabinet; exhaust air must be able to pass
unrestricted out of the cabinet. If some physical constraint restricts the flow of exhaust
air out of the cabinet, we recommend that fans or blowers be mounted so that the hot
air is removed from the cabinet as quickly as possible.
Each Pinnacle Plus+ 10 kW supply dissipates up to 10% of its maximum power at full
rated output. The minimum air flow required by the Pinnacle Plus+ 10 kW supply is
140 CFM (cubic feet per minute) The static pressure (inches of water) of the empty
cabinet should not exceed 0.1 inches of water at the CFM level obtained by adding
together the minimum CFM values for all the power supplies that will be placed in the
cabinet.
For example, if three Pinnacle Plus+ 10 kW units were to be mounted in a cabinet (see
Figure 5-2 on page 5-4), the minimum CFM requirement would be 420 CFM of
cabinet air volume (140 + 140 + 140 = 420 CFM). This would result in a total power
For CE-marked power supplies: Install and operate this device only in a
pollution degree 2 or better environment, which means an indoor
location such as a computer room, office, or factory floor where only
non-conductive pollution occurs during operation. Occasionally,
condensation causes temporary conductivity when the device is not
operating.
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