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Kidde Gemini II System
Notes:
1. The Auxiliary Power Output current value stated is the maximum allowable sum total of both the Resettable and Non-
resettable Auxiliary Power Outputs.
2. The standby and alarm values for the MCP include those of the Alarm and Trouble Relays.
3. The MCP Programmable Relay should only be included if it is energized on alarm.
4. The current value stated for the ORB Relays is for each individual relay when energized. The cUL MCPs do not
support ORBs.
5. The Standby current stated for Ionization, Photoelectric, Duct and Heat Detectors is for each detector. The Alarm
current is for the Detection Circuit.
6. The current value stated for the Sounder Circuits is the maximum total for both circuits.
7. On the Agent Release Circuit, the MCP can have a maximum of three Continuous Agent Release Solenoids, that is a
maximum current draw of 1200 mA while the RHU can have a maximum of two Continuous Agent Release Circuits
that is a current draw of 800 mA.
8. The Alarm Current indicated is the maximum drawn by any Group A, B, D, E or G solenoid approved by Factory
Mutual.
9. Momentary Agent Release Solenoids are negligible in their current requirements and do not need to be included in the
calculation.
10. Include the RDUs only if their 24 Vdc Power is drawn from the Auxiliary Power Output Circuits on the MCP/RHU. If the
RDUs are powered by the MCP/RHU, reduce the power available from the Auxiliary Power Output (for other pur-
poses) by 25 mA standby and 35 mA alarm per RDU.
11. The current values indicated for the ULI/ULC MCP include the additional standby current required by the LED drivers
and the Alarm Current required by one LED Display Module.
12. A maximum of two additional LED Display Modules may be installed on the ULI/ULC MCP.
A-3
STANDBY AND ALARM POWER REQUIREMENTS
Use the Table A-3 to calculate the Standby and Alarm power requirement of the MCP and each RHU on the system.
Perform a separate calculation for the MCP and each RHU.
A-3.1
Procedure
1. Insert the actual count of components and devices into the "Standby Quantity" column.
2. Insert the quantity of those components/devices which can be in alarm into the "Alarm Quantity" column.
3. Multiply the quantity count by the "Each" Standby and Alarm power and insert these values in the "Total" column.
4. Calculate the sum of the values in the "Total Standby" and "Total Alarm" columns to arrive at the "Total Standby Power"
and "Total Alarm Power" in milliamperes.
5. Divide the mA values for "Total Power" in Amperes.
06-235975-001
A-2
firealarmresources.com
November 2002
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