Horner APG QX751 OCS - Manual (Page 18)

CH. 3 MAN0890-02-EN
August 20, 2009 Page 18 of 96 ECN # 979
3.2.
Mounting Orientation
NOTE:
There are NO orientation restrictions on the QX751. However, the above orientation provides for optimum
readability of the screen and ease of use of the keypad.
Figure 3.2 – Orientation of QX751
3.3
Factors Affecting Panel Layout Design and Clearances
The designer of a panel layout needs to assess the requirements of a particular system and to consider
the following design factors. A convenient checklist is provided on page 20.
a.
Clearance / Adequate Space
Install devices to allow sufficient clearance to open and close the panel door.
Table 3.1 – Minimum Clearance Requirements for Panel Box and Door
Minimum Distance between base of device and sides of
cabinet
2 inches (50.80mm)
Minimum Distance between base of device and wiring ducts 1.5 inches (38.10mm)
If more than one device installed in panel box (or on door):
Minimum Distance between bases of each device
4 inches between bases of each
device (101.60mm)
When door is closed:
Minimum distance between device and closed door
(Be sure to allow enough depth for QX751/BP.)
2 inches (50.80mm)
Warning: It is important to follow the requirements of the panel manufacturer and to follow
applicable electrical codes and standards.
001OCS001