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screws exposed. Carefully place the two keyholes
over the screws in the wall. Ensure the enclosure
has its door hinge sockets located to the left as
you face the enclosure. Allow the enclosure to gen-
tly come to rest on the screws. Tighten the screws.
Refer to Figure 7-5 for the mounting-hole layout
and Table 7-4 for the enclosure dimensions of the
MCP and RHU.
d. With the enclosure held by the top two screws,
place the bottom two mounting screws in place.
Tighten all screws.
e. Reinstall the enclosure door and the ground wire
at this time. Use caution when installing the door
to ensure the hinge pins line correctly.
3. Mount the RDU backbox as follows:
a. Remove knockouts as required.
b. To mount against a wall, place the mounting screws
(not provided) in the wall to match the keyholes at
the back of the backbox. Leave about ¼" of both
screws exposed. Carefully place the two keyholes
over the screws in the wall. Allow the backbox to
gently come to rest on the screws. Tighten the
screws. Refer to Figure 7-4 for the mounting-hole
layout and Table 7-4 for the backbox dimensions
of the RDU.
.187
SLOT DETAIL - 2
PLACES ON TOP & 2
PLACES ON BOTTOM
SURFACE.
Figure 7-5. Dimensions, Main Control Panel and Remote Hazard Unit
November 2002
15.5
11.5
7.75
4.0
12.0
1.75
2.25
.375
13.5
1.0
SEE DETAIL A
1.0
13.5
GROUND
1.0
13.5
firealarmresources.com
c. With the backbox held by the top two screws, place
the bottom two mounting screws in place. Tighten
all screws.
Table 7-4. Enclosure Dimensions
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7-3.2.2
INSTALLING BACKUP BATTERIES
Perform the following steps to install the Batteries for the
MCP and RHUs:
1. Place the batteries in the bottom of the enclosure as
shown in Figure 7-7. Space is provided in the MCP and
RHU enclosures for two 12 V, 12 AH sealed lead acid
batteries. All Batteries and Battery Cabinets (which are
required for Battery Capacities higher than 12 AH) must
be ordered separately.
2. Upon completion of the initial installation steps as de-
scribed in Paragraphs 7-3.2.4 and 7-3.2.5 for the MCP
and RHU, connect the positive terminal of the first bat-
tery to the negative terminal of the second.
.437
2.4
DETAIL A
2 PLACES
5.0
15.6
.28 DIA
1/2" (.875 DIA)
2 HOLES
3/4" (1.125 DIA)
COMBINATION KNOCKOUTS:
3 LOCATED ON TOP
3 LOCATED ON EACH OF
2 SIDES
7-5
Kidde Gemini II System
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5.0
8.0
15.5
06-235975-001
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