![background image](http://html1.mh-extra.com/html/mircom/fa-101u/fa-101u_installation-and-operation-manual_1805746016.webp)
-14-
APPENDIX "B" - BATTERY CALCULATIONS (SELECTION GUIDE)
Use the form below to determine the required batteries.
IMPORTANT NOTICE
The main AC branch circuit connection for Fire Alarm Control Unit must provide a dedicated continuous power without provision of any disconnect
devices. Use #12 AWG wire with 600-volt insulation and proper over-current circuit protection that complies with the local codes.
POWER REQUIREMENTS (ALL CURRENTS ARE IN AMPERES)
Model Number
Description
Qty
STANDBY
TOTAL
ALARM
TOTAL
STANDBY
ALARM
FA-101U
Fire Alarm , 1 Det, 1 Sig
X
0.066
=
0.125
=
FA-102U
Fire Alarm, 2 Det, 1 Sig
X
0.076
=
0.135
=
FA-1025U
Fire Alarm, 5 Det, 2 Sig
X
0.114
=
0.200
=
RTI-1
Remote Trouble Indicator
X
0.035
=
0.035
=
2-Wire Smoke Detectors
X
=
'
0.0001
*
0.090
= 0.090
4-Wire Smoke Detectors
X
=
=
Signal Load (bells, horns, strobes,
=
and etc.)
Total currents (Add above currents)
STANDBY
(
A
)
(
B
)
Total Current Requirement:
ALARM (
B
)______ Amps.
Battery Capacity Requirement:
(
[STANDBY (
A
) ______ ] X [(24 or 60 Hours) ___ ]
)
+
(
[ALARM (
B
) ______ ] X [
%
Alarm in Hr.] _____
)
= (
C
) ______AH
Battery Selection:
Multiply (
C
) by 1.20 to derate battery.
Batteries
BA-104
(4.0AH) and
BA-1065
(6.5AH) fit into the backboxes ; all larger batteries such as
BA-110
(10AH) and the
BA-117
(17AH) require an
external battery box.
*
Assuming three Initiating Circuits in alarm.
%
Use
0.084
for five minutes of alarm or
0.5
for thirty minutes of alarm as a multiplier figure.
'
Using the
MIR-425/U
2-wire smoke detector. See Appendix "A", for other available smoke detectors .
Summary of Contents for FA-101U
Page 7: ... 5 FIGURE 1 BACKBOX FLUSH TRIM MOUNTING DETAILS ...
Page 8: ... 6 FIGURE 2 CIRCUIT BOARD LAYOUT ...
Page 9: ... 7 FIGURE 3 DETECTION AND SIGNAL WIRING INSTRUCTION ...
Page 10: ... 8 FIGURE 4 WIRING TABLE FOR DETECTION ZONE ...
Page 11: ... 9 FIGURE 5 WIRING TABLE FOR BELLS AND HORNS ...
Page 12: ... 10 FIGURE 6 ALARM AND TROUBLE RELAY CONTACTS AND REMOTE ANNUNCIATION WIRING INSTRUCTIONS ...
Page 17: ......
Page 18: ...Notes ...
Page 19: ......