ADEMCO 5110XM Installation Instructions Manual page 32

4) Enter the calculated
subtotals of all listed
outputs then add to get
combined current.
5) These values are fixed.
6) Enter the calculated
combined currents then
add to total PCB
current.
7) Using the total
calculated power supply
load (step 6), calculate
the battery capacity
required for the
installation.
8) Using the battery
capacity from step 7,
select the appropriate
battery.
COMBINED AUX. POWER, BELL AND RELAY OUTPUT
(Cannot exceed 350mA max. standby; 1.0 amp max. alarm)
5110XM PCB CURRENT
Includes 2-wire smoke detector and LED indicator PCB currents
TOTAL CONTROL LOAD
Combined aux. power, bell and aux. relay output current
* Limit the total power supply standby current to 210 mA when a 60 hr. standby time is
desired.
BATTERY CAPACITY CALCULATION WORKSHEET
(For 24 or 60 hour standby followed by 5 minute fire alarm)
Capacity Formula
Standby Capacity total standby load X 24 or 60 hours X 1.1 contingency
factor (use total standby load from previous worksheet)
Alarm Capacity total alarm load X 0.083 hours (5 minutes)
(use total alarm load from previous worksheet)
Total Capacity Add standby and alarm capacities (14AH max)
BATTERY SELECTION TABLE
7 AH Yuasa NP7-12
14 AH Yuasa NP7-12 (connect 2 in parallel, mounted
vertically in cabinet)
Making the Battery Connections
1. Use the battery capacity calculation worksheet(above) to determine the
appropriate battery for the installation.
Do not connect the batteries until all devices have been wired to the control.
2. Verify that the proper float charging voltage (13.5–13.8VDC) is present
across the battery terminals of the 5110XM PCB. If not, check that the
auxiliary power and auxiliary relay outputs are not loaded in excess of their
ratings.
Aux. Power Output Subtotal
Bell Output Subtotal
Aux. Relay Output Subtotal
Add all subtotals
Total PCB current
Total power supply load*
– 32 –
Total Current
Standby Alarm
XXXXX
Total Current
Standby Alarm
155mA 235mA
Total Current
Standby Alarm
155mA 235mA
Calc Value