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Intermatic SS7 SERIES - User Manual

Intermatic SS7 SERIES
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AM
DAY H+
M+
MODE RESET
ON/OFF
EVENT
MO
ON
MAN
MODEL SS7 SERIES
INSTALLATION AND OPERATING
INSTRUCTIONS
Features
•Automaticormanualoperation.Pushtheclearcover/switchtoswitchOnorOffatanytime.
•Programupto6On/Offsettingpairs(12automaticswitchsettings).
•Eachsettingtimecanbeonceaweek,everyday,everyweekday,oronlyonweekends.
•LCDDigitalclockandreadout.
•Randomfeatureautomaticallyvariesswitchingtimesfora“lived-in”look.
•OneAAAAlkalinebatterykeepstime,operatestimer,andkeepstheprogramforupto1
1
/
2
years,evenwithout
utilitypower.
•Canbeusedforflood(PAR)andcompactfluorescentlampsanddimmers.
•Unique“hardcontact”outputswitchallowstimertocontrolmost120VACloads.
Alsocontrolsmanyloads12to277VACand12to28VoltsDC.
Refertoproductlabelformaximumratingsforvariousvoltagesandloadtypes.
Introduction
Thetimercanreplaceyourregularor3-waylightswitch(wheretwoswitchescontrolthesamelight)tocontrol
lightsforsecurity,orcancontrolanoutlettoswitchmost120VACloadsuptothemaximumratingonthetimer
label.Thetimercancontrolincandescentlights,fluorescentlights,floodlights(PARlamps),stereos,orappliances
suchasanairconditioner.Thetimercanalsocontrolmanyloads12to277VACand12to28VoltsDC.Timer
maynotbeusedwithlightedswitches.
YouwillneedtouseaDecoratorstylewallplatewiththistimer(notsupplied).
Theinstallationinstructionsonthispageareforreplacingalightswitch(or3-waylightswitch)withthetimer.See
“OtherInstallations”onthenextpageforwiringdiagramsfornewconstruction,switchingfrom3ormorelocations,
orusingthetimerwithadimmer.
Installation Instructions - Single Switch or 3-way - to replace an existing
switch:
1.TURNOFFPOWERbyREMOVINGFUSEorturning
theCIRCUITBREAKEROFF.
2.Removetheexistingwallswitch.
Preparetheendsofthebuildingwiringasshown.
7/16”
Trimbuildingwiresbareto7/16”.
Programming and Operating Instructions
Introduction to Operation and Programming:
Thetimerisaprogrammableswitch.
Atanytimeyoucanpushtheclearcover/switchtomanuallyturntheswitchONorOFF,unlessselectedmode
isCLKorPGM.
Youcanprogramupto12ON/OFFEVENTS;timeswhenthetimerautomaticallyswitchestheconnectedlights
(orotherelectricaldevices)ONorOFF(upto6ONeventsand6OFFevents).AnEVENTcanbesettoswitch
at:
• anyspecifictime,anddayoftheweek,
• aspecifictimeeveryday,
• aspecifictimeonweekdays,or
• aspecifictimeonweekends.
SeeInstallation Instructionsfirstifyourtimerisnotalreadyinstalled,oriftheAAAlkalinebatteryisnot
installed.
Workslikealightswitch.Pushandreleasetheclearcover/switch
(areaoverbuttons)toswitchONorOFF.OrswitchONandOFF
usingtheremoteswitch(es)inmulti-switchinstallations.
Manual Override
• WorksinAUTO,AUTORANDorMANmodes.
• Youhearamotor/clickingsound.
• ON/OFFdisplaychanges.
• TheprograminAUTOorAUTORANDremains;itauto-
maticallyswitchesONorOFFatnextprogrammedtime.
Controls and Displays
Cover/Switch
Theclearcover/switchisthemanualON/OFFcontrol.
1. Pullatnotchattopedgetoremovecoversoyoucanuse
theprogrammingbuttons.
To replace cover/switch:
2. Setbottominfirst.
3. Clickinthetop.
To remove battery:
4.Graspholderatsidebumps
(4a,4b)andpullstraightout.
To re-install battery:
5.Placebatteryinholderwith“+”
endtowardsfrontoftimer.Insert
batteryandholderintotimer.
Pushat(5)soitclicks
intoplace.
Battery Holder
7. Pullatnotchattopedgetoremovetheclear/coverswitchsoyoucanuse
theprogrammingbuttons.
8. TostoptheflashingdisplayandturnswitchtoOFF:PushRESETbutton;
PushMODEsoCLKisdisplayedattheupperleft;pushH+tostopthe
flashingdisplay;pushMODEtwicesoMANisdisplayedattheupper
right;pushON/OFFEVENTsodisplayatupperrightsaysOFF(youmay
hearthetimermotorrunandaclickingsound).
9. Yourtimerisnowreadyforuse.Returnthepowertothecircuitatthe
servicepanel.
RESET button
Recessedsoyoudon’tpushitaccidentally.
Pushandreleasetoreset:
WhenyoupressRESET:
• ThemodeswitchestoMAN.
• TheswitchissettoON.
• TheclockissettoMO12:00AMandflashes.
• AllprogrammedONorOFFtimesaresettonull
(atnull,noswitchingoccurs,clockdisplays-:--).
(AfterpushingRESET,youmustsettheclockthensetthe
ON/OFFtimes.)
• IfNoOpappearsindisplay,pushbatterycoverinuntilyou
hearaclick.Pushresetbuttontocleardisplay.Proceed
withprogramming.
Push Buttons:
MODE
DAY button
Functiondependsonthemode:
CLK mode- Push and release to cycle throughthe daysof the
week:MO,TU,WE,TH,FR,SA,SU.Pushandholdtocyclequickly.
PGM mode - Push and release to cycle through all week,
weekdays,weekend,individualdaysoftheweekandnull:
MOTUWETHFRSASU(alldisplayedatonceisallweek)
MOTUWETHFR(alldisplayedatonceisweekdays)
SASU(displayedisweekend)
MO,TU,WE,TH,FR,SA,andSU(areindividualdays)
-:--(onclockdisplayisthenullsetting)
UsenulltocancelanunwantedONorOFFsetting.TheDAY
buttondoesnothinginAUTO,AUTORANDorMANmodes.
DAY
H+ (hour) button
WorksinCLKandPGMmodes.
Pushandreleasetocycleforwardthroughthehoursoftheday.
Pushandholdtocyclequickly.
AMandPMautomaticallyswitchat12.
Ifyoupassthecorrecthour,pushandholdtocyclearoundagain.
H+
M+ (minute) button
WorksinCLKandPGMmodes.
Pushandreleasetocycleforwardthroughtheminutes.
Pushandholdtocyclequickly.
Ifyou passthecorrect minute,push andhold to cyclearound
again.
M+
ON/OFF/EVENT button
Functiondependsonthemode:
CLK mode-ON/OFFEVENTbuttondoesnothing.
PGM mode-Switchesinorderthroughthe12programmable
events1 on, 1 off, 2 on, 2 off, 3 on, 3 off, 4 on, 4 off, 5 on, 5
off, 6 on,and6 off.
AUTO mode-Manuallyturnsswitchonoroff.
AUTO RAND mode-Manuallyturnsswitchonoroff.
MAN mode-Manuallyturnsswitchonoroff.
How to set or change the clock
1. Removetheclearcover/switch.
2. PushandreleaseMODEbuttonuntilCLKisdisplayed(2a).
3. PushandreleaseDAYbuttonuntilcorrectdayofweekisdisplayed(3a).
4. PushandreleaseH+buttonuntilhourandAM/PMarecorrect(4a).
5. PushandreleaseM+buttonuntilminutesarecorrect(5a).
6. PushandreleaseMODEbuttontochooseAUTO,AUTORANDorMAN.
7.Replaceclearcover/switch.
8.Pushandreleaseclearcover/switchtoswitchloadONorOFFif
necessary.
How to set, change, or review ON/OFF times
1. Removeclearcover/switch.
2. PushandreleaseMODEbuttonuntilPGMisdisplayed(2a).
[atevent1on]
3. Ifnecessary,pushandreleaseON/OFF/EVENTbuttonuntileventtoset/
changeisdisplayed(3a),orpushtheON/OFF/EVENTpushbutton
repeatedlytoreviewalltheON/OFFtimes.
4. PushandreleaseDAYbuttonuntildesireddayorgroupofdaysisdisplayed
(4a),or pushand releasethe DAYbutton until“-:--” isdisplayed, ifyou
wouldliketocancelthisONorOFFtime.
5. PushandreleaseH+buttonuntildesiredeventhourandAM/PMare
displayed(5a).
6. PushandreleaseM+buttonuntildesiredminutesaredisplayed(6a).
7. PushandreleaseON/OFF/EVENTbuttontochoosethenexteventtoset
orchange(7a).
8. Push and release MODE button to choose AUTO, AUTORAND, or
MAN.
9. Replaceclearcover/switch.
10. Pushandreleaseclearcover/switchtoswitchloadONorOFFifnecessary.
BLACKWIRE
BLUEWIRE
REDWIRE
(Capped,NotConnected)
PUSHON/OFF
1
MODE button
Pushandreleasetochangethemode(upperlineofthedisplay).
CLK mode-Tosetorchangethetime.
PGM mode-Toset,revieworchangeprogrammedON/OFFtimes.
AUTO mode-ProgrammedON/OFFtimeswork.Manual
switchingworks.
AUTO RAND mode-ProgrammedON/OFFtimesworkand
arerandomlyoffsetupto15minutes.Manualswitchingworks.
MAN mode-Onlymanualswitchingworks.Programmed
ON/OFFtimesremaininmemory.
TheMode buttonskipstheAUTO modesifthetimeofday
and/ortheON/OFFtimeshavenotbeenset.
WIREFROM
“COMMON”OF
OLDSWITCH
BLACKWIRE
REDWIRE
BLUEWIRE
REMOTE
3-WAY
SWITCH
MOVE
JUMPERWIRE
TOOTHER
TERMINAL
IFTHIS
SWITCH
DOES NOT
TURNLIGHT
ON
COMMON
Single switch:
3.Connectoneofthebuildingwirestotheblackwirefrom
thetimer,usingthetwistonwireconnectorsprovided.
Connecttheotherbuildingwiretothebluewirefrom
thetimer.
THEREDTIMERWIREISNOTUSEDFORSINGLE
SWITCHINSTALLATIONS.Captheredwirewithatwist
onwireconnector.BESURETHATALLTHETWISTON
WIRECONNECTORSARESECURE.
3-way switch: (See “Other Installations” to use a dimmer or if switching from 3 or more locations)
3a.Athreewayswitchhasthreewiresconnectedtoit.Oneofthewiresis“common”(theterminalhasadif-
ferentcoloredscrewortherearemarkingsontheoldswitch).ConnecttheBlackwirefromthetimertothe
commonwire.ConnecttheothertwowirestotheBlueandRedwiresfromthetimer(itdoesn’tmatterwhich
goestowhich.)
3b.Identifythe“common”terminalattheother(remote3-way)switch.Connectthesuppliedjumperwire
fromthecommonterminaltooneoftheothertwoterminalsoftheswitch.
(Ifthelightdoesnotturnonwhenyougettostep9,turnpoweroffatthefuseorcircuitbreakerandswitch
thejumperwiretotheotherterminal.)
4.Tuckthewiresintothewallboxleavingroomforthetimer.
5.Usingthescrewsprovided,mountthetimertothewallboxtheninstallthewallplate.
Battery (If not supplied with unit.)
6.Releasebatteryholderwithflatscrewdriveratnotch(6a)andpullstraightout.UsesastandardAAAalkaline
battery.Setthebatteryinthebatteryholder(+towardsfrontoftimer).Tuckbatteryunderplastictabofholder. 
Insertbatteryholdersoitclicksintoplace.
Battery
Holder
3
4a
4b
5
2
2,6
3
4
5
3a
2a
4a
5a
LOAD MAINTENANCE
WARNING1 DO NOT USE THE TIMER TO TURN OFF POWER FOR MAINTENANCE (repairs, removing
broken bulbs, etc.). ALWAYS TURN POWER OFF AT THE SERVICE PANEL BY REMOVING A FUSE OR
SWITCHINGOFFACIRCUITBREAKERBEFOREDOINGANYCIRCUITREPAIRS.
Error Messages
The‘lobAt’messagemeansthebatteryislowandneedstobereplaced.UsesonestandardAAAalkalinebattery.
The display is ‘noOp’ (Meaning no Operation) if the timer fails to operate. This can happen in very cold
temperatures. Normal timeroperation should resume at normaltemperatures. Press any buttonto clear the
message(s).Ifthe‘noOp’remainsatnormaltemperatureswithafreshbattery,timerneedstobereplaced.
2,8
3,7
4
2a
3a
(Example)
5a
4a
6a
7a
5
6
AM
DAY H+
M+
MODE RESET
ON/OFF
EVENT
MO
ON
MAN
CAUTION: This timer should not be used in precision timing applica-
tions where inaccurate timing could have dangerous consequences (i.e., sun
lamps, sauna, etc.)
Battery Replacement
The1.5VOLTalkalinebatteryshouldoperateyourtimerfor1
1
/
2
yearsormoreundertypicalconditions.High
orlowtemperatureorfrequentuseofthemanualpushbuttonorthe3-wayswitchwillreducethebatterylife.
Replacethebatterywhenthedigitaldisplayisdim,themessage‘lobAt’(MeaningLOWBATTERY)isdisplayed,
orifthetimerfailstooperate.Pressanybuttontoclearthe‘lobAt’message.Thetimerhasbuilt-inmemory
protectionprovidingatleast15secondstochangeaweakbatterywithoutlosingyoursettings.Youdonotneed
toturnofftheloadorthepowerinordertoreplacethebattery,however,donotattempttoswitchthetimer
onoroffwhilethebatteryisoutoryoursettingswillbelostandthetimerwillneedtobereset.

Questions and Answers

  • K
    Kurt AllenAug 18, 2025
    Why does my Intermatic SS7 Control Unit timer switch at incorrect times?
    • S
      susanreedAug 18, 2025
      Incorrect programmed schedules or the timer being in AUTO RAND(om) mode can cause the Intermatic Control Unit timer to switch at incorrect times or skip some switching times. Review and revise all six ON/OFF switching time pairs by repeatedly pushing the ON/OFF/EVENT button while in PGM mode. Also, use the MODE pushbutton to select AUTO mode.
  • M
    Mark VillarrealAug 20, 2025
    What to do if my Intermatic Control Unit timer does not switch but the display is normal?
    • D
      Debra MclaughlinAug 20, 2025
      If the Intermatic Control Unit timer display is normal, but it isn’t switching, it might not be in AUTO, AUTO RAND(om), or MAN(ual) mode. Use the MODE pushbutton to select the desired operating mode.
  • B
    Brett ParkAug 23, 2025
    What to do if my Intermatic SS7 Control Unit timer operates, but the light doesn’t come on in dimmer applications?
    • M
      markmontgomeryAug 23, 2025
      If the Intermatic Control Unit timer operates but the light doesn’t come on when using a dimmer, the dimmer might be turned off or set too low, or the bulb could be burned out. Ensure the timer display shows ‘ON’, then check the dimmer operation at full brightness. If timer control is required at very low brightness settings, use a premium quality dimmer that can be turned on when set low.
  • D
    Deborah HarrisAug 26, 2025
    How to fix Intermatic SS7 when load turns off immediately after being turned on?
    • K
      Kimberly BrandtAug 26, 2025
      If the load connected to your Intermatic Control Unit turns off immediately after being turned on, there could be a wiring issue with the remote switch or timer, excessive wire length (greater than 30 feet) or buried wiring to the remote switch, or a defective timer. If the problem persists with the red wire disconnected or with a ‘remote’ switch temporarily connected right at the timer, replace the defective timer, otherwise try the above remedies.
  • E
    Erin GlennAug 28, 2025
    What to do if my Intermatic SS7 Control Unit timer works manually but does not follow the scheduled program?
    • A
      ayoderAug 28, 2025
      If the Intermatic Control Unit timer works manually but doesn’t follow the scheduled program, it’s likely not in AUTO or AUTO RAND(om) mode. Use the MODE pushbutton to select AUTO or AUTO RAND.
  • Y
    ygarciaAug 30, 2025
    Why does my Intermatic SS7 timer not operate and the display is dim?
    • C
      Cynthia DaviesAug 31, 2025
      If the Intermatic Control Unit timer doesn’t operate and the display is dim, blank, unreadable, shows nonsense like ‘lobAt’, or operates erratically, the battery may be worn out, missing, or installed backward, or the timer was operated while the battery was removed. Install a fresh AAA size alkaline battery in the direction indicated. Press the RESET button, then reprogram the timer.
  • T
    Timothy GregorySep 2, 2025
    What to do if Intermatic SS7 load state doesn’t match programmed state after programming?
    • S
      Scott DominguezSep 2, 2025
      If the load state of your Intermatic Control Unit doesn’t match the programmed state immediately after programming the time or schedule, it's because the timer does not “catch up” to the programmed load state. After entering your schedules or the time, then returning to the AUTO modes, push the ON/OFF/EVENT button to change the load state if necessary.
  • E
    erik48Sep 4, 2025
    How to resolve Intermatic Control Unit battery holder installation issues?
    • X
      xvasquezSep 5, 2025
      If the Intermatic Control Unit battery holder is difficult to snap in place, it could be due to the battery not being seated correctly in the holder, misalignment of the holder, or bent contact tabs on the holder. Line up the tabs on the bottom of the holder with the notches in the timer housing when pushing it in. Straighten any bent contact tabs.
  • A
    Amanda LeeSep 7, 2025
    What to do if my Intermatic Control Unit timer won’t enter AUTO or AUTO RAND modes?
    • A
      alishaclarkSep 7, 2025
      If your Intermatic Control Unit timer won’t enter the AUTO or AUTO RAND modes when the MODE button is pushed, the time of day and/or switching times may not be programmed. Make sure the time of day and at least one scheduled activity are programmed.
  • S
    sparkerSep 10, 2025
    Why Intermatic Control Unit load only operates when the remote (3-way) switch is in one position?
    • D
      Dennis BarkerSep 10, 2025
      If the load on your Intermatic Control Unit only operates when the remote (3-way) switch is in one position, the remote switch is likely wired incorrectly. Recheck the wiring, especially for the jumper, per 'Installation Instructions - 3-Way Switch' and 'Other Installations'.

Summary

Installation Instructions - Single Switch or 3-way to replace an existing switch

Battery Replacement

Details on replacing the AAA alkaline battery for timer operation, including warnings about settings loss.

Controls and Displays

Cover;Switch

The clear cover/switch serves as the manual ON/OFF control for the timer.

Push Buttons

Explanation of the timer's programming and control buttons: RESET, MODE, DAY, H+, M+.

How to set or change the clock

How to set, change, or review ON;OFF times

Other Installations

Installations including a Dimmer

Guidance on using the timer with a dimmer switch, noting load size and dimmer settings.

Special applications

Overview of unique timer applications like dimmers, no utility power, or DC voltage control.

Troubleshooting Guide

LIMITED ONE YEAR WARRANTY

Intermatic SS7 SERIES Specifications

General IconGeneral
SeriesSS7
Timing Range24 hours
Frequency60 Hz
Amperage40A
Max Load40 A Resistive
Number of Circuits1

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