ADEMCO VISTA-32FB Installation And Setup Manual page 105

6. Enter total
calculated subtotals
of all listed outputs,
then add to get the
combined current.
7. These values are
fixed.
8. Enter the calculated
combined current,
then add to total
PCB current.
9. Using the total
calculated power
supply load (step 8),
calculate the
battery capacity
required for the
installation.
COMBINED AUX. POWER, BELL, AND RELAY OUTPUT
(Cannot exceed 1.0A max. standby/2.3A max alarm)
VISTA-32FB PCB CURRENT
Includes 2-wire smoke detector loading on zones 1 & 2 and
trigger output currents
5140DLM Backup Dialer Module
*5140DLM actually draws 55mA when active. However, since VISTA-32FB PCB
current includes built-in main dialer current, and since main dialer is inactive
when 5140DLM is active, 5140DLM imposes only 15mA added current on power
supply.
TOTAL CONTROL PANEL LOAD
Combined aux. power, bell, and polling loop total
Battery Capacity Calculation Worksheet
Capacity Formula
Standby Capacity (Use total standby load from previous worksheet)
For 4-hour standby time, use the following formula:
Total standby load x 4 hours x 1.4 loading/contingency
factor
For 24-hour or 60-hour standby time, use the following
formula: Total standby load x 24 or 60 hours x 1.1
contingency factor
Alarm Capacity (Use total alarm load from previous worksheet)
Total alarm load x 0.083 hours (for 5-min. alarm)
Total Capacity Add standby and alarm capacities
Section 19 – Final Power-Up Procedure
Aux. Power 1 Output Subtotal
Aux. Power 2 Output Subtotal
Bell 1 Output Subtotal
Bell 2 Output Subtotal
Polling Loop Subtotal
Add all subtotals
Total PCB current
Total control panel load*
x 0.250 hours (for 15-min. alarm)
Total Current
Standby Alarm
XXXXXX
XXXXXX
Total Current
Standby Alarm
300mA 470mA
5mA 15mA
(inactive) (inactive)
Total Current
Standby Alarm
Calc Value
19–5