Yamaha PROFESSIONAL PC1602 Operating Manual page 8

MOUNTING
Shelf Mounting
The PC1602 can be used on any flat, level surface as long
as there is adequate ventilation. Do not remove the
amplifiers feet as this would block airflow through the
bottom panel.
Permanent-installation Rack Mounting
The PC1602 can be mounted in any standard 19" electronic
equipment rack. The rear panel of the rack should be left
open to promote smooth airflow. Cooling fans are required
for rack- mounted PC1602's, if they must produce extremely
high average power output (i.e. stereo operation into
4-ohm loads or mono operation into an 8-ohm load). Refer
to the diagrams to the right for the ideal cooling fan con-
figuration.
* One unit of PC1602 demands one cooling fan
unit.
" S
Portable Rack Mounting
ie
S
a
Road cases must be durable enough to withstand rough
i xs
handling and airline travel. Secure the back end of the
Fan unit "O73
PC1602 side panels to the rack with the screws provided,
and provide cooling fans (like those shown to the right) CAUTION!
if ventilation is restricted.
If unit(s) are to be used in a rack mounted installation,
it is recommended that fan cooling be installed.
Without fan cooling, units could be damaged from
excessive temperature conditions.
The minimum required airflow rate for fans should
Shelf be 2 x 19 cubic feet per minute (CFM). Use only
fans with the above specification.
The following are some examples of fans with the
proper specifications:
Type/ Mode
ORIENTAL А
MOTOR CO LTD MU825S-23 or equivalent
Airflow Rate
Side Panel Support Screws
Use the both screw holes on each side panel. Use only
the supplied screws (millimeter thread).
Rack mounting with cooling fans
Fan Unit
* The fan unit shown uses two fans, each with a maximum
volume of 19 CFM (cubic feet per minute) and a
maximum pressure of 5 mm H20.
* Slits should be provided on the top and bottom sides
for air circulation.