Installation Checkout

f. While observing the ohmmeter, allow the

paper, and pull the wire to remove the insulation

junction box to move away from its mounting

from the last two or three inches of wire. Repeat this

surface. Observe that the ohmmeter reading

step for both wires being spliced together.

changes to greater than 100K ohms as the junction

(3) Take one of the wires and fold it in the middle

box is displaced from 1/8 to 1/4 inch away from the

of the section where the insulation was removed.

mounting surface.

Fold it again in the middle of the first fold. Repeat

this step for both wires.

g. Remove the cover and retighten the junction

(4) Insert folded section of each wire into the

box mounting screws, ensuring that the junction box

is secured to its mounting surface.

opposite ends of the tubular connector (PN TBD) and

NOTE

crimp with the crimpers supplied with the kit. Insure

Steps a through g verified the operation of the cover and

that the wires are secure in the connector.

pry-off tramper switches.

h. Move the VOM leads to terminals 1 and 2 (see fig.

2-7. Installation Checkout

2-3) and measure the continuity of the horizontal

NOTE

grid wire network. The VOM should indicate less

This checkout is to be performed following the

than 1 ohm of resistance.

installation of the grid wire sensor, but before J-SIID

system wiring to the junction box is completed.

i. Move the VOM leads to terminals 3 and 4 (fig. 2-8)

and measure the continuity of the vertical grid wire

a. Using a VOM, connect the leads to terminals 5

network. The VOM should indicate less than 1 ohm of

and 6 (fig. 2-3). Route the leads of the VOM through

resistance.

the conduit hole.

j. Move the VOM leads to terminals 2 and 3 (fig. 2-3)

b. Place the cover securely on the junction box,

and measure the continuity of both grid wire

while monitoring the resistance between terminals 5

and 6 (fig. 2-3), and observe that the ohmmeter reads

networks. The VOM should indicate less than 1 ohm

of resistance. If infinity is indicated between termi-

less than 1 ohm.

nals 1 and 2, or 3 and 4, or 5 and 6, there is a break in

c. While observing the ohmmeter, a slowly move

the appropriate grid wire network or jumper.

the cover away from the junction box. Observe that

continuity reads greater than 100K ohms as the

Determine the location of the break and repair. Care

cover is displaced from 1/8 to 1/4 inch away from the

must be exercised when overlaying materials on the

junction box.

network, to ensure that. breakage of the grid wires

d. Remove the cover and loosen the mounting

does not occur.

k. With no problems encountered in steps a

screws sufficiently enough to allow the junction box

to be moved from its mounting surface by at least 1/4

through g, the grid wire sensor is operative and

inch.

J-SIID system wiring may be installed. Once the

e. Replace the cover and hold the junction box

J-SIID system tiring of the grid wire sensor is

securely against the mounting surface, while observ-

completed, ensure that the cover to the junction box

is properly seated on the box and cover mounting

ing ohmmeter. The ohmmeter should read less than

screws are secured.

1 ohm.

2-6