Chapter 3: Field wiring
ZP3 Fire Control Panel Installation, Commissioning, and Maintenance Manual
57
Use the information provided in Table 12 to calculate the power supply and battery load
capacities. Record the results as shown in Table 13.
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Quiescent Amperes
L1
1.2 A
Fire alarm Amperes
L2
2.5 A
Insert the calculated quiescent load into L1, and the calculated fire alarm load into L2.
Check Pass if the calculated load is below the PSU capacity, otherwise check Fail.
Should the ZP3 PSU not be able to supply the system load, then either the system
design must be modified, or a separate, external power supply must be used for part of
the load.
If the system must operate in the quiescent state for 24 hours and with a full
alarm load for half an hour, calculate the battery size as follows (see Table 14
below).
Multiply the quiescent load plus the basic panel load by 1.05 (this adds 5%) to
obtain the possible extra load resulting from the panel being in a fault, disabled,
or other non-fire condition. Multiply this figure by 24 to obtain the ampere-hours
(Ah) needed for 24-hour operation. Insert the result into C1.
Multiply the Fire Alarm Load plus the basic panel load by 0.5, and insert the
result into C2.
Add C1 and C2, and insert the result into C3.
Add 25% to C3 to calculate the battery over-rating requirement. This allows for
the normal deterioration in battery performance over the batteries' lifetime.
Select the nearest size battery available, rounding upwards. Remember that the
largest battery that can be accommodated in the ZP3 enclosure is 30 Ah.
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Standby Ah
(Quiescent load + 0.3 Amps) × 24 × 1.05
C1
Fire alarm Ah
(Fire alarm load + 0.5 Amps) × 0.5
C2
Total Ah
C1 + C2
C3
Battery capacity over-rating (25%) C3 × 1.25
C4
Nearest size battery
C5
Содержание ZP3
Страница 76: ...Chapter 3 Field wiring 68 ZP3 Fire Control Panel Installation Commissioning and Maintenance Manual...
Страница 112: ...Chapter 5 System configuration 104 ZP3 Fire Control Panel Installation Commissioning and Maintenance Manual...
Страница 162: ...Appendix B ZP3 system maintenance 154 ZP3 Fire Control Panel Installation Commissioning and Maintenance Manual...
Страница 163: ......
