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Calculations C
VES, LLC
Elite-RS Panel Installation Manual
VF3529-00, Revision E01.03
H-Series
94 of 146
This section describes current-loading, the standby-battery rating and the NAC wiring length.
Current-Loading
Current-loading of the Elite-RS Panel is limited to the capacity of the 5.25 Amp power supply. FACP installers must
determine the loading placed on the power supply by adding the sum of device-loads to the no-load-alarm
current of the Elite-RS Panel. The result obtained from this calculation must be below 4 Amps of the 5.25 Amp
power supply so that the Elite-RS Panel can operate.
The power supply of the Elite-RS is rated at 5.25 Amps where 1.25 Amps is reserved for charging the
standby-batteries and 4 Amps is reserved for operating the control panel and external loads.
The 4 Amp reserve of the 5.25 Amp power supply is the maximum current capacity of the Elite-RS Panel.
The control panel will not function properly if the operating constant of 4 Amps is exceeded.
Current limits are provided in
Appendix A, “Specifications”
for each of the circuit-connections on the Elite-RS Panel.
Installers must identify the current-draw of each device on the circuit-connection and then compare the sum of these
device-currents with the current limit provided for each of the circuit-connections. The total of device-currents must
be below the limits provided in
Appendix A, “Specifications”
for each circuit-connection.
The calculation of total-current-loading must include the sum of device-loads on each of the Elite-RS circuits.
Circuits to be included in this calculation for total-current-loading are:
•
Panel standby and alarm currents
•
SLC Loops
•
NAC Outputs
•
24V OUT
•
AUX 24V
The current limits provided in Appendix A, “Specifications” are maximums for each of the circuit-connections
on the Elite-RS Panel. These levels are not intended to be summed together to determine the total-current available
from the Elite-RS Panel. Refer to these levels only when determining the limit of device-loading on each circuit.
Appendix C
Calculations