DoorKing 9220 - Manual (Page 18)

1.4 Pad Mount Installation
1. Construct a form for the mounting pad according to the specifications shown below. Be
sure to level the top edge of the form and that the top of the form is a minimum of four (4)
inches above ground level. We suggest that you contact the local building department to
determine the required depth of the pad since soil conditions and code requirements vary
from city to city.
2. Set conduits, reinforcing bars and/or wire mesh if required. The number of conduits is
determined by the application requirements. We suggest using a minimum of four (4)
conduits. 1-High voltage power lines; 2-Low voltage control lines; 3-Loop lead-in wires
(open loop); 4-Loop lead-in wires (reverse loops). Conduits can be set in the areas
indicated in the illustration. See SECTION 2. Set additional conduits as required for your
application. NOTE: If conduits are not set in the pad, they can be routed to a J box
where connections to the operator can be made after it is installed. There are four (4) ½-
inch knockouts in the operator for this purpose.
4
23
4
28
1
7.5
11.25
12.0
16.0
16.75
20.5
6.75
10.75
11.75
P a d d e p t h d e t e r m i n e d b y s o i l
conditions and local building codes.
Minimum depth is 18 inches.
Minimum 4 inches
above ground level.
GATE
1
GATE GATE GATE
3. Mix the concrete according to the manufacturers instructions. Pour the mixture into the
form and tamp. Level and finish the surface after pouring is complete. Do not set anchor
Page 18 9210-065-H-8-08