A.2 MP3300 Installation and Usage Conditions
A.2.1 Environmental Conditions
A-6
Control Panels with Forced-air Cooling
For either of the following methods, install a fan near the center of and at the top or bottom of
the MP3300.
• Forced draft method (A fan or a similar device is used to circulate the air in the interior and the
exterior of the panel.)
• Forced circulation method (A fan or a similar device is mounted to the airtight panel to circu-
late the air inside.)
* Provide at least 30 mm if you use natural cooling.
1. Use the following guideline when selecting the fan:
• 80 × 80 mm min., Maximum air flow: 0.9 m
3
/min, Maximum static pressure: 26.5 Pa or
higher
2. Adjust the fan installation location and the direction of air flow as shown in the following dia-
gram.
Fan
Fan
40 mm min.
10 mm
min.*
10 mm
min.*
40 mm min.
Approx.
40 mm
Direction
of air ow
Direction
of air ow
Approx.
40 mm
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