Air Flow; Rack Mounting - Yamaha PA24 Owner's Manual

Air Flow

This unit uses a forced cooling system in which air comes in through the front opening and goes out the rear.
Front
Air intake

Rack Mounting

If multiple high-power amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interior
of the amp to become very hot, causing the performance of the amps to be impaired. In particular, when mounting in a rack
whose back can not be left open, mount according to the following instructions.
Rack: Leave a gap of 10 cm or more between the rear panel of the rack and the rear panel of the amplifier.
Fan: Use a fan with 1.5 m
Mounting: Install the fan kit on the top slot or the top panel of the rack and install a blanking panel between two amps.
If the unit is rack mounted and transported frequently, we recommend that the rear of the unit be supported by fitting a pair
of metal brackets, one each side.
Example of mounting
The top figure shows an example of a fan kit (panels and two fans) on the top slot of the rack. The fans are Minebea 3115PS-
3
12T-B30 (with 0.9 m /min maximum wind and 5 mmH
The bottom figure is a dimensional diagram of a panel on which two 3115PS-12T-B30 are installed.
10
Side View
3
/min or more maximum wind and 5 mmH
Fan kit
PC9501N/PC6501N/
PC4801N/PC3301N/
PC2001N
PC9501N/PC6501N/
PC4801N/PC3301N/
PC2001N
78
71.5±0.1
Air exhaust
O or more maximum static pressure.
2
O maximum static pressure).
2
248
463
480
Rear View
Unit: mm