Installation
6-0
Revision 2 - 20 March, 1997
HP SERIES DIMMER
OPERATING MANUAL
6.0
Installation
For rack-mount dimmers: Refer to sections 6.1 thru 6.3.
For wall-mount dimmers: Refer to sections 6.4 thru 6.10.
6.1
Rack mounting
The HP12-TR and HP12-SC dimmers are designed to be installed in standard 19-inch
wide racks. These racks must have adequate ventilation for the side-to-side airflow of
the dimmers. Fully enclosed racks will cause overheating problems.
It is highly recommended for all applications, but particularly for touring applications,
that the rear rack-mounting support brackets be used. These are supplied with each
dimmer and are suitable for use in racks that are approximately 465mm deep,
measured from the front rail to the rear rail eg. Jands 13RU Rack. Refer to section
6.1.2. Extended brackets (also supplied) are used for deeper racks in the range 625mm
to 730mm deep, and should be used for installing in racks such as the JANDS 27RU
and 40RU Contractor Series racks. Refer to section 6.1.3.
6.1.2
Mounting in racks 465mm deep
3
3
2
1
Figure 6.1
Using the standard rack-mounting ears
Refer Figure 6.1. To mount the HP12-TR / HP12-SC dimmers without the extender
bracket: