ET100 Series Timer

User Manual: ET100-series-timer

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®
ET100 SERIES
INCLUDING MODELS:
ET101C (SPST)
ET103C (DPST)
ET105C (SPDT)
Electronic 24 Hour Time Switches
With Battery Carryover
OWNER/INSTALLER INSTRUCTION MANUAL
ATTENTION: READ CAREFULLY BEFORE ATTEMPTING TO INSTALL YOUR INTERMATIC
TIME SWITCH. FAILURE TO COMPLY WITH INSTRUCTIONS COULD RESULT IN PERSONAL
INJURY AND/OR PROPERTY DAMAGE! RETAIN FOR FUTURE REFERENCE.
Specifications
CLOCK VOLTAGE: 120 V.A.C., 60 Hz.
POWER CONSUMPTION: 3.0 Watts Max. (ET101C) &
ET105C)
5.0 Watts Max. (ET103C)
CONTACT CONFIGURATION: SPST model ET101C
DPST model ET103C, & SPDT model ET105C.
SWITCH RATING: (Per Pole for ET103C)
• 30AmpsInductive/Resistive,24/120/240V.A.C.,60Hz.
• 20AmpsResistive-28V.D.C.,
• 1H.P.120V.A.C.,60Hz.
• 2H.P.240V.A.C.,60Hz.
• 5AmpsTungsten,120/240V.A.C.,60Hz.
• 20AmpsBallast277V.A.C.,60Hz.
SWITCH RATINGS: ET105C
N.O. N.C. CONTACT
 20AMP10AMPResistiveand 28VDC.
 GeneralPurpose 120-240VAC
 1H.P.1/4H.P.MOTOR120V.A.C.
 2H.P.1/2H.P.MOTOR 240V.A.C.
 5Amp-TUNGSTEN120-240V.A.C.
 20Amp3AmpBALLAST 120-277
V.A.C.
 SETPOINTS(EVENTS):8total(4ON/4OFF).
 BATTERYPOWEREDCLOCKOPERATION:3Yearsminimum
 (AAindustrialgradealkalinesuppliedwithtimeswitch)
 MIN.“ON”or“OFF”TIME:1minute.
 MAX.“ON”or“OFF”TIME:23hours59minutes.
 SHIPPINGWEIGHT:2,5Lbs.(1.1Kg)
CASE: Drawn steel; 7-3/4” (19.7 cm) high, 5” (12.7 cm)
wide, 3” (7.6 cm) deep; gray finish w/lockable spring hasp.
KNOCKOUTS: Combination 1/2 - 3/4” (one on back and
 eachside,twoonbottom).
 WIRESIZE:AWG#10through#18.
General Safety Information
WARNING: Disconnect all power before installing or
 servicingthistimeswitchoritsconnectedloads.
1.Follow all local electrical and safety codes, National
Electric Code (NEC), as well as Occupational Safety and
 HealthAct(OSHA).
2.Ifthepowerdisconnectpointisoutofsight,lockitinthe“OFF”
positionandtagittopreventunexpectedapplicationofpower.
 3.Thistimeswitchcasemustbegrounded.
 4.Donotexceedthemaximumcurrentcarryingcapacityofthis
 timeswitch.
5.Always replace the plastic  insulator covering the terminal
 beforeturningpower“ON”.
AM ON
5:20
Description
The Intermatic Electronic 24 Hour Time Switch automatically
switches loads according to a preset daily schedule.
Thistimeswitchisdesignedtodirectlyswitchloadsupto30amps
and to switch resistive or inductive loads up to the time switch
rating.Foruseasacontroltimerinapplicationsrequiring24hour
load control such as lighting, heating, air conditioning systems,
pumps,etcetera.Uptoeightsetpointsorevents(4ON/4OFF)
canbepreset.thisschedulewillrepeatonadailybasis.Thepro-
gramcanbeoverriddenbyusingtheMANUALposition.
Trouble Shooting
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Timeswitchhasnodisplay. Batterynotproperlyinstalledor Checkbatteryandreplaceifnecessary.
 defective.
Displayshows“L-bA”. Displaymeans“LowBattery”. Replacebatterywithin30days.
Displayshows“Err1”message. Slideswitchnotfullyinitsdetent Repositionslideswitchintodetentor“wiggle”until
position(opencircuit). displayiscorrected.Ifdisplaydoesnotcorrect,
Displayshows“Err2”message. Slideswitchshortedcircuit. contactorreturntofactoryforservice.
Displayshows“Err3”message. Slideswitchillegalposition.
Displayshowsscrambledor Timeswitchhasnotbeenreset. Presstherecessedresetswitchandholdfor
erratictimes.  approximately5seconds.
Electricalnoiseisinterferingwiththe Electricalnoiseinterferenceishighlyunlikely
operationofthemicroprocessor. sincetheelectroniccircuitryandthepower
  supplyarecompletelyisolated.Theinstallation
  ofsurgesuppressors(metaloxidevaristors-
  MOVS)acrossterminals3/4(modelET103C
  acrossterminals3/4&5/6)willhelptoreduce
  electricalnoisegeneratedattheswitching
  contacts.
Loaddoesnotswitchat- MANUAL/AUTOselectornotinAUTO BesureMANUAL/AUTOisintheAUTO
programmedtime. position. position.
Timeswitchisprogrammedincorrectly Checkprogram-placetheProgramSelectorin
  thePROGRAMmodeandpresstheEventbutton
  toreviewalleightpossibleEvents.
Powerhasnotbeensuppliedtothe Besurepowerisappliedtothelineterminals#3
loadthroughtheline(line1and (#3and#5forET103C)inordertopowerthe
line2forET103C)terminals. load.Notethattheoutputcontactsareisolated
  fromthetimerpower(terminals1and2).
  Thisallowsthetimertoswitchvariousloads
  from24voltsthrough277volts.
LIMITED ONE YEAR WARRANTY
Ifwithin one(1)year fromdateof purchase,this productfailsdue toadefect inmaterialorworkmanship,Intermatic Incorporatedwillrepair or
replace,atitssoleoption,theunitfreeofcharge.Thiswarrantyappliesonlytotheoriginalpurchaserandisnottransferable.
Thewarrantydoesnotapplyto:(a)damagecausedbyaccident,abuse,mishandling,dropping,actsofGod,oranynegligentuse;(b)unitswhich
havebeensubjecttounauthorizedrepair,opened,takenapart,orotherwisemodified;(c)unitsnotusedinaccordancewithdirections;(d)damages
exceedingthecostoftheproduct.Somestatesdonotallowalimitationofdamages,sotheforegoinglimitationmaynotapplytoyou.
Thiswarrantygivesyouspecificlegalrightsandyoumayhaveotherrightsthatvaryfromstatetostate.
INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THIS WARRANTY IS IN LIEU
OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES. ALL IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY
AND THE WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST ONLY AS CONTAINED IN THIS
LIMITED WARRANTY AND SHALL BE OF THE SAME DURATION AS THE WARRANTY PERIOD STATED ABOVE.
Thiswarrantyserviceisavailablebyeither(a)returningtheproducttothedealerfromwhomtheunitwaspurchased,or(b)mailingpostageprepaid
tothenearestauthorizedservicecenterlisted.Pleasebesuretowraptheproductsecurelywhenmailingtoavoiddamage.Thiswarrantyismade
by:IntermaticIncorporated/AfterSalesService,7777WinnRd.,SpringGrove,IL60081-9698.
SERVICE CENTER/ SERVICE CENTRE
CENTRE DE SERVICE
INTERMATIC INCORPORATED
AfterSalesService
7777WinnRd.,
(815)675-7000
http://www.intermatic.com
INTERMATIC INCORPORATED
SPRING GROVE, ILLINOIS 60081-9698
158--00385
http://waterheatertimer.org/Intermatic-ET-series-timers-and-manuals.html#ET100
Installation
WARNING: DISCONNECT THE POWER TO THE TIME SWITCH
AND THE LOADS BEFORE INSTALLING THIS TIME SWITCH.
1.Mount the time switch in the desired location using the three
 mountingholeswhichareprovided.Mountthetimeswitchateye
level, if possible, providing sufficient room to the left of the
 enclosureforthecovertoswingopenfully.(SeeFigure#1and
Figure #2). The time switch mechanism does not need to be
 removedfromtheenclosuretomountthetimeswitchsincethe
top mounting hole is a slotted type mounting hole. Secure a
 screworotherfastenerateyelevel.Theheadofthescrewor
 fastenershouldbeslightlylargerthanthenarrowportionofthe
slotted hole to ensure that the time switch is securely held in
 place.Theremainingtwomountingholesareaccessiblewithout
removing the time switch mechanism and will provide secure
 andpermanentmountingofthetimeswitch.
2.Ifyoudoremovethemechanism,refertoFigure#1andremove
 themechanismfromthecasebydepressingthecatchatthetop
 ofthecaseandpullingout.
CAUTION; DO NOT TOUCH THE CIRCUIT BOARD
COMPONENTS SINCE STATIC DISCHARGE COULD
DAMAGE THE MICROPROCESSOR.
3.Replacethemechanisminthecaseifithasbeenremoved.
4.Lifttheleftsideoftheinsulatoroffoftheretainingpostandpivot
 itupandawaytoexposetheterminalstrip.
5.Strip  the supply and load wires by removing 1/2 inch of
 insulation.DONOTUSEALUMINUMWIRE.(Seefigure#3,#4
 or#5).Insertthewireendsundertheproperterminalplatesand
 tightenthescrewsfirmly.UseAWG#10through#18.Connect
ground wire to grounding terminal at bottom of case.
6.Replacetheplasticinsulator.
7.Be sure that the battery is functioning properly. this can be
 checkedbymakingsurethedisplayisvisible.Ifthedisplayhas
scrambled information, press the RESET switch and hold for
three to five seconds. Note that the battery can easily be
replaced without removing the time switch mechanism or field
wiring. simply press in and downward (in the direction of the
arrow) on the battery cover which is identified with the word
 “Battery”.Itisrecommendedthatthebatterybereplacedwitha
 “AA”industrialgradealkalinecellattwotothreeyearintervals
 aspartofthenormaltimeswitchmaintenanceobservingbattery
polarity markings when installing. No other maintenance is
 required.
8.Place the selector switches in the “MANUAL” and “RUN”
 positions.
9.Reapplypowertothetimeswitch.
Mounting Holes
Knockouts
FIG. #1
FIG. #2
FIG. #3
ET101C SPST
NOTE: For 120 Volt loads only since the timer voltage is 120 VAC
a jumper can be added between terminals 2 and 3 to supply load
power.
CAUTION: Do not use jumper if load(s) are not 120V. because the
loadcan be damaged.Supplyseparate power ofthecorrect voltage
toterminal3.
InstallJumperOnlyIf
TimerInputandLoad
VoltageAreTheSame,
Otherwiseprovidea
separatesourceofload
powertoterminal3.
AM ON
10.Press the reset switch for three to five seconds. The
display will now show 12:00 A.M. and Event #1. The
 timerisnowreadyforprogramming.Refertothechart
below and enter the scheduled events (set points)
 required.
EVENT TIME
 On1
Off 2
 On3
 Off4
 On5
Off 6
 On7
 Off8
Programming Steps
Refer to programming instructions on time switch door
labelandnotethefollowing:
• TheMANUAL/AUTOselectorcanbeusedtotemporarily
override the program. Under normal operation the
selector should be in the AUTO mode. The MANUAL
mode maintains the program but prevents the loads
 fromautomaticallyswitching.
• Theotherselectorswitchisusedtosetthetimeofday
 (TIMESET),theprograminformation(PROGRAM)orto
run the program (RUN). FOR A PROGRAM TO
FUNCTION PROPERLY, THE TWO SELECTOR
SWITCHES MUST BE IN THE AUTO AND RUN
POSITIONS.
• TheRESETswitchisusedonlypriortoinitiallyprogram-
 mingthetimeswitchortoeraseallprogrammedset
 points.
• By holding the hour and/or minute buttons depressed
 youcanachieveafastrollofthedisplayedtime.Thisis
useful when setting the time of day or setting the
 programmedsetpoints(events).
• Up to 4 ON and 4OFF set points (8 events) can be
 programmed.
• TheloadcanmanuallybeswitchedONorOFFatany
time only if the selector switch is in the RUNmode by
 pressingtheON/OFFbutton.
• Pressing the ON/OFF button two times in the
 PROGRAMmodecausestheeventtimedisplayedtobe
 removedfromtheprogram.Thedisplaywillshow0:00
 andtheEvent(1through8).
To Operate Timer
After programming is complete, move the selector
switchestotheRUNandAUTOpositions.Thetimeswitch
willfollowthescheduledprogrambutwillnotimmediately
“catch up” to the presently programmed load condition;
thetimeswitchwill“catchup”atthenextscheduledONor
OFF setpoint. If necessary, press the ON/OFF button to
turntheloadonoroff.
FIG. #4
ET103C DPST
LOAD STATUS INDICATOR
“ON” or “OFF”
EVENT
INDICATOR
PROGRAMMING
BUTTONS
MANUAL/AUTO
SELECTOR
PROGRAM
SELECTOR
PROGRAMMING/
MANUAL LOAD
CONTROL
BUTTON
FIG. #6
Install Jumper Only If Timer
Input and Load Voltage Are
The Same, Otherwise provide
a separate source of load
power to terminal 3& 5.
120 V A C
Neutral
Hot
NOTE: For 120 Volt loads only since the timer voltage is 120 VAC
ajumpercanbe added between terminals 2,3and5tosupplyload
power.
CAUTION: Do not use jumper if load(s) are not 120V. because the
loadcan be damaged.Supplyseparate power ofthecorrect voltage
toterminal3and5.
NOTE: For 120 Volt loads only since the timer voltage is 120 VAC
jumperscanbeaddedbetweenterminals2and3tosupplyloadpower.
CAUTION:Donotusejumpersifload(s)arenot120V.becausetheloadcanbe
damaged.Supplyseparatepowerofthecorrectvoltage.
TIMER
POWER
123 4
LOAD 1
5
LOAD 2
NEUTRAL LINE LINE 1
InstalljumperOnlyIf Timer
InputandLoadVoltageAre
TheSame,Otherwiseprovide
aseparatesourceofload
powertoterminal3.
For breaking one side of
120 volt loads.
FIG. #5
ET105C SPDT

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