
AL842ULADA - 3 -
Power Supply Specifications:
AC Input:
120VAC60Hz,5ampsuppliedbyamaximum15ampdedicatedbranchcircuit.
Output:
Four(4)regulatedsupervisedNACoutputcircuits,24VDC,2.5ampmaximumcurrent.
One(1)aux.specialapplication24VDCpoweroutputcircuit1amp,non-supervised
totaloutputcurrentmustnotexceedcurrent8ampinAlarmCondition.
Battery:
Usetwo(2)12VDC/12AHortwo(2)12VDC/7AHbatteriesconnectedinseries.
Stand-by/Alarm Current
Consumption:
90mA/175mA
EOL Resistor (end of line):
2.2K(2200ohm),AltronixModel#AL-EOL22(included).
Ground fault maximum
test impedance:
1000ohm.
Stand-by Specifications:
Stand-by Batteries Stand-by Time Total Amp/Minutes Alarm Output Current Aux. Output
24VDC/7AH 24Hours 6.5amp/5minutes ---
24VDC/12AH
(usetwo(2)12VDCbatteriesinseries)
24Hours 6.5amp/5minutes 50mA
24VDC/36AH 24Hours 6.5amp/5minutes 1amp
Note: Unit is equipped with two (2) 1 amp max. auxiliary outputs: “AUX1” will automatically disconnect when
AC is lost. “AUX2” will remain battery backed up during power outage. For loads connected to “AUX2” please,
refer to battery “Stand-by Specifications” above for ratings. When loads are connected to the “AUX1” and or
“AUX2” outputs during alarm condition, the remaining outputs may not exceed 8 amp total alarm current.
(example: AUX1 = 1 amp, AUX2 = 1 amp, outputs up to 7 amp).
Installation Instructions:
WiringmethodsshallbeinaccordancewiththeNationalElectricalCode/NFPA70/NFPA72/
ANSI,andwithalllocalcodesandauthoritieshavingjurisdiction.
Productisintendedforindooruseonly.
Carefully review:
Application Guide for AL642ULADA, AL842ULADA, AL1042ULADA
Power Supply Output Specifications (pg. 3)
Stand-by Specifications (pg. 3)
Output Programming Selection Table (pg. 4)
Sync Mode Selection Table (pg. 4)
Terminal Identification Table (pgs. 5-6)
LED Diagnostics (pg. 6)
1.Mounttheunitinthedesiredlocation.Markandpredrillholesinthewalltolineupwiththetoptwokeyholesinthe
enclosure.Installtwoupperfastenersandscrewsinthewallwiththescrewheadsprotruding.Placetheenclosure’s
upperkeyholesoverthetwoupperscrews;levelandsecure.Markthepositionofthelowertwoholes.Removethe
enclosure.Drillthelowerholesandinstalltwofasteners.Placetheenclosure’supperkeyholesoverthetwoupper
screws.Installthetwolowerscrewsandmakesuretotightenallscrews(Enclosure Dimensions, pg. 8).
Secureenclosuretoearthground(Fig. 1, pg. 3).
2. Connecttheline(L)andneutral(N)terminalstoaseparateunswitchedACcircuit(120VAC,60Hz)
dedicatedtotheFireAlarmSystem.
3.Measureoutputvoltagebeforeconnectingdevices.Thishelpsavoidingpotentialdamage.
4. Connectbatterytotheterminalsmarked[+BAT--]onthePowerSupplyBoard(batteryleadsincluded).
Usetwo(2)12VDCbatteriesconnectedinseries.
5. Setoutputselectionswitchesmarked[OUT1throughOUT4]tofollowcorrespondinginput[IN1&IN2]
anddesiredoutputsignaltype (Output Programming Selection Table, pg. 4).
6. ConnectFACPoutputtothedesiredAL842LGKlogicboardinputs,andnotificationappliancestothedesired
AL842LGKlogicboardoutputs(see Application Guide).
Note:The2-wirehorn/strobesyncmodewillonlysynchronizehorns,horn/strobes,strobeswith
synchronizationcapability.
7. Forconnectionofsmokedetectors,digitaldialer(Optional Hookup Diagram, pg. 7).
Fig. 1
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