Honeywell GF505, Manual, Page: 101 / 124

Calculating the System Current Draw Power Supply Calculations
Table 7.3 contains three columns for calculating current draws. For maximum output current availability per circuit and per panel, refer
to Section 1.2, “Specifications”, on page 13. For each column, calculate the current and enter the total (in amperes) in the bottom row.
When finished, copy the totals from Calculation Column 2 and Calculation Column 3 to Table 7.4 on page 102.
Device Type
Calculation Column 1
Primary, Non-Fire Alarm Current
(amps)
Calculation Column 2
Secondary, Fire Alarm Current
(amps)
Calculation Column 3
Secondary, Non-Fire Alarm
Current
(amps)
Qty
X[current
draw]=
Total Qty
X [current draw]
=
Total Qty
X[current
draw]=
Total
Main Circuit
Board
GF505
or
GF510
1 X[0.110]= 1 X[0.214]
1, 2
=
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 The current draw shown represents one zone (IDC) on the main circuit board in alarm. One zone consumes 0.040 amps.
1 X[0.110]=
CAC-5X [ ] X[0.001]= [ ] X[0.001]= [ ] X[0.001]=
4XTMF [ ]
1 max.
X[0.005]= [ ]
1 max.
X[0.011]
1
= [ ]
1 max.
X[0.005]=
ANN-SEC card [ ]
1 max.
X[0.003]= [ ]
1 max.
X[0.003]= [ ]
1 max.
X[0.003]=
GFANN-80 [ ] X[0.037]= [ ] X[0.040]= [ ] X[0.015]=
GFANN-RLY [ ] X[0.015]= [ ] X[0.075]= [ ] X[0.015]=
GFANN-(R)LED [ ] X[0.028]= [ ] X[0.068]= [ ] X[0.028]=
2-wire Detector
Heads
[ ] X[ ]
3
=
3 Refer to the Device Compatibility Document for standby current.
[ ]
4
4 Enter the number of IDCs used minus one.
X[0.040]= [ ] X[ ]
3
=
4-wire Detector
Heads
[ ] X[ ]
3
= [ ]
4
X[0.040]= [ ] X[ ]
3
=
Power
Supervision
Relays
5
5 Must use compatible listed Power Supervision Relay.
[ ] X[0.025]= [ ] X[0.025]= [ ] X[0.025]=
NAC #1 [ ] X[ ]=
NAC #2 [ ] X[ ]=
NAC #3
NAC #4
Current Draw
from TB9
(nonalarm)
[ ]= [ ]= [ ]=
Sum each
column
6
for
totals
6 Total current draw listed above cannot exceed 7.25 for the GF505 and 7.28 for the GF510.
Primary Non-Alarm = Secondary Alarm = Secondary Non-Alarm =
Table 7.3 System Current Draw Calculations
GF505 & GF510 Manual — P/N 53164:B5 6/12/2018
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