Installing The Remote Display Unit (Rdu) - Kidde Gemini II Design, Installation, Operation, And Maintenance Manual

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5. The RHU is now fully functional except for the Release
Circuits. To connect the Release Circuits, perform the
following steps:
a. At the MCP, isolate the release output of the RHU.
b. Disconnect RHU battery and open RHU AC circuit
breaker (i.e., power down the RHU).
c. Connect the field wiring for the MCP's release out-
puts.
d. Connect the RHU battery. Close the RHU AC cir-
cuit breaker (i.e., power up the RHU).
e. At the MCP, de-isolate the release output of the
RHU.
The Kidde Gemini II RHU is now completely functional.
7-3.2.6
INSTALLING THE REMOTE DISPLAY UNIT
(RDU)
1.
Install each RDU using the following steps:
a. Make all conduit connections to the RDU backbox.
b. Pull all system wiring through installed conduit. This
will include the RS-485 Communication Wiring, the
Input wiring from the Manual Release and Abort (if
used) and the 24 Vdc Power Supply. The 24 Vdc
Power can be sourced either from an independent
UL Listed Power Supply Unit or from the MCP or
RHU to which the RDU is assigned to.
c. Verify the integrity of the field wiring. Do not con-
nect the wiring to the RDU terminals.
d. Connect the Power Supply wiring.
If the RDU is to be powered from the independent
Power Supply Unit, connect the 24 Vdc wiring to
the RDU terminal board and mount it to its backbox.
Close the circuit breaker to the AC power. The RDU
should show an "Unregistered' trouble on its dis-
play. OR
If the RDU is to be powered via the MCP (or an
RHU), power down the MCP (or RHU). Connect
the 24 Vdc wiring to the RDU terminal board and
mount it to its backbox. Then, power-up the MCP
(or RHU). The RDU should show an "Unregistered'
trouble on its display.
2. Establish the RS-485 Data Communication between
the RDU and the MCP. To do this, perform the follow-
ing steps:
a. Power down the RDU and the rest of the system
units.
b. Remove the RDU from its backbox.
c. Set the network address of the RDU (see Appen-
dix E) with the 4-position dip switch labeled SW3
(see Appendix E for the location of SW3). Note that
while each RDU must be assigned a unique net-
November 2002
3. Set the configuration of the RDU using the MCP Menu
4. If the RDU is to have Abort and Manual Release
The RDU is now fully functional. If it has been assigned to
the MCP or an RHU, it should be included in a Walk Test of
the MCP or RHU.
7-9
firealarmresources.com
Kidde Gemini II System
work address, an RHU and an RDU may have the
same address number.
d. Connect the RS-485 wiring between the RDU and
the other system units.
e. Mount the RDU to its backbox.
f.
Power up the MCP (it should be showing "System
status normal") and all intervening system units
between the MCP and that RDU.
g. Power up the RDU.
h. Reset the MCP. The MCP should establish com-
munication with the RDU. The MCP should show
one trouble "Unregistered RDU." The RDU will con-
tinue to show "Unregistered."
using the following steps:
a. Register the RDU at the MCP. When leaving
menus, the MCP should show "System status nor-
mal." The RDU will also show "System status nor-
mal."
b. If the RDU is to be assigned to the MCP or an RHU,
assign the RDU to the desired unit (MCP or RHU)
from the MCP.
switches, use the following steps:
a. At the MCP, isolate the release outputs of the MCP
and all RHUs that exist on the system. Isolation
troubles will be generated for all release outputs
isolated.
b. At the MCP, set the RDU configuration to show that
Abort and Manual Release switches are to be con-
nected. Two further troubles will be generated, one
each for the Abort and Manual Release switch.
c. Power down the RDU.
d. Remove the RDU from its backbox. Connect the
Abort and Manual Release wiring to the RDU con-
nections. Mount the RDU into its backbox.
e. Power up the RDU. The Abort and Manual Release
troubles will be removed. No Abort and Manual
Release events should be generated by the RDU.
f.
De-isolate the isolated release outputs through the
MCP's menus. The system should now be show-
ing "System status normal."
06-235975-001

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