PDRP-2001 Datasheet, PDF (101/140 Pages) Systemsensor advanced ideas. – Deluge Preaction Control Panel

Calculating the System Current Draw
Power Supply Calculations
Table 5-3 contains three columns for calculating current draws. For each column, calculate the
current and enter the total (in amperes) in the bottom row. When finished, copy the totals from Cal-
culation Column 2 and Calculation Column 3 to Table 5-4 on page 102.
TABLE 5-3:System Current Draw Calculations
Device Type
Calculation Column 1
Primary, Non-Fire Alarm Current
(amps)
Calculation Column 2
Primary, Fire Alarm Current
(amps)
Calculation Column 3
Secondary, Non-Fire Alarm Current
(amps)
Main Circuit Board
CAC-5X
4XTM
ANN-80
2-wire Detector Heads
4-wire Detector Heads
Power Supervision
Relays³
NAC #1⁴
NAC #2
NAC #3
NAC #4
Current Draw from
TB9 (nonalarm⁵)
Qty
1
[]
[]
[]
[]
[]
[]
X[current draw]=
X[0.122]=
X[0.001]=
X[0.005]=
X[0.037]=
X[ ]²=
X[ ]²=
Total
0.122
Qty
1
[]
[]
[]
[]
[]
X [current draw] =
X[0.185]¹=
X[0.001]=
X[0.011]¹=
X[0.040]=
X[ ]=
X[ ]=
Total
0.185
Qty
1
[]
[]
[]
[]
[]
X[current draw]=
X[0.122]=
X[0.001]=
X[0.005]=
X[0.037]=
X[ ]=
X[ ]=
Total
0.122
X[0.025]=
[]
X[0.025]=
[]
X[0.025]=
[]
[]
X[ ]=
X[ ]=
[ ]=
[ ]=
[ ]=
Sum each column⁶
for totals
Primary Non-Alarm =
Primary Alarm =
Secondary Non-Alarm =
Table Footnote
1. If using the Reverse Polarity Alarm output, add 0.005 amps; if using the Reverse Polarity Trouble output, add another 0.005
amps.
2. Refer to the Device Compatibility Appendix for standby current.
3. Must use compatible listed Power Supervision Relay.
4. Current limitation of Terminal TB5 circuits is 3.0 amps per NAC
5. The total standby current must include both the resettable (TB9 Terminals 3 & 4) and nonresettable/resettable (TB9 Terminals 1
& 2) power. Caution must be taken to ensure that current drawn from these outputs during alarm does not exceed maximum rat-
ings specified. Current limitations of TB9, Terminals 1 & 2 = 0.500 amps, filtered, 24 VDC +/-5%, 120 Hz ripple @ 10 mV_RMS,
nonresettable power and TB9, Terminals 3 & 4 = 0.500 amps, filtered, 24 VDC +/-5%, 120 Hz ripple @ 10mV_RMS, resettable
power.
6. Total current draw listed above cannot exceed 7.0 amps
PDRP-2001 Series PN 53043:A 5/08/2007
101