MERRICK MC3 90.10.EX, Operation And Maintanance Manual

Page: 12 / 59

MC³ 90.10.EX O&M Manual - 5 -
Enclosures
Panel Mount
The Merrick MC³ Panel Mount Controller is designed for mounting in a control panel. It is suitable
for use in environments that are generally clean, and within the temperature range of 32º to 122º
F (0º to 40º C). It must be protected from water or significant dirt or dust.
The panel mount enclosure consists of a rectangular box with a hinged door on the rear covering
the I/O connections, a removable top cover, a system-grounding bar and a sliding tray. The slide
tray allows the Card Stack Assembly to be slid out of the back of the enclosure for easier
maintenance while the controller is mounted into a panel. The Display assembly is mounted on
the front bezel. The top cover may be removed for easier access to the boards. Access to the
terminal blocks for interconnection with other equipment is obtained by unscrewing the rear
cover.
Installation
Cut panel to dimensions provided in Panel Mount - Dimensions on page 49. Care must be used
when cutting due to tight tolerances for the panel mount bezel. Also, insure there is adequate
clearance around the controller for maintenance and ventilation. Install the controller into panel
using the mounting brackets provided.
Wall Mount
The Merrick MC³ Wall Mount Controller is designed to be weatherproof, and can generally be
mounted anywhere where the temperature range is within 14º to 104ºF (-10º to 40ºC). Merrick