Federal Signal Corporation ez1 echo Installation Instructions Manual - page 5
II. MAINTENANCE.
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
Listed below are some important safety instructions and precautions you should
follow:
•
Readandunderstandallinstructionsbeforeoperatingthissystem.
•
Anymaintenancetotheintercomsystemmustbedonewiththepower
turnedoff.Powertorelaycontactmustalsobedisconnectedasthisis
externallysupplied.
•
Anymaintenancetotheintercomsystemmustbeperformedbya
trained electrician in accordance with Country Electrical Guidelines and
local codes.
•
Neveraltertheunitinanymanner.Safetymaybeendangeredifad-
ditional openings or other alterations are made to units.
•
Onlyfactoryprovidedservicepartsaretobeused.Onlythesecompo-
nentshavebeenverifiedandcertifiedforuseinhazardousareas.
•
Thenameplate,whichcontainscautionaryorotherinformationofimpor-
tance to maintenance personnel, should not be obscured.
•
Afterperforminganymaintenance,testtheintercomsystemtoensure
that it is operating properly.
A. KeypadReplacement.
Thekeypadistobereplacedasanassemblyconsistingofthekeypadand
LED.Seethelistbelowforthereplacementpartnumber.
1. LoosenthefourM6fixingscrewsfromthecoverandopentheunitright
to left.
2. Disconnectthe10-wayIDCconnectorfromthekeypad.
3. RemovetheeightM4screwsfromtheclampingplateandremoveboth
items.
4. Fitthenewkeypadassemblyintopositionandensurethatthefasciais
firmlyseatedtothesealinggasketinthemouldedcover.Tightentheclampingplate
with the eight M4 screws.
5. Re-connectthe10-wayconnectorandre-installcover.
6. Test unit for proper operation after replacement is complete.
B. StubbyMicrophoneReplacement.
1. LoosenthefourM6fixingscrewsfromthecoverandopentheunitright
to left.
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