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158--02515
Step #5 under “PROGRAMMING SPECIFIC EVENTS”
or Press MODE to return to AUTO, RAND (random) or
MAN (manual).
COUNTDOWN OPERATION ONLY
Countdown Setup
PRO-TIP: The time will move faster the
longer you hold down the
button.
1. Use the + or – button to set the
amount of countdown time you would like.
2. Press the ON/OFF button to confirm
3. Press and hold the MODE and ON/OFF buttons and hold
for 5 seconds. The display will show the WARN (warning)
menu.
4. Press the + or – to select FLASH or OFF.
a. Off — the warning function is
turned OFF.
b. Flash — when the timer reaches
3-minutes before shut-off, it will
flash the controlled lights (or other
circuit) for 1 second. A “sunburst” icon will appear on
the display
5. Press the MODE button to confirm
6. Press the + or – to select the desired LOCK option.
a. None — no locking function is set.
b. Pause — users cannot use the Pause function to
suspend the timer countdown.
c. Time — users can review but not change the time
setting. Users can adjust a running countdown but may
not exceed the locked shut-off setting.
d. All — both the pause and setting or changing of the
timer’s shut-off setting is locked.
7. Press the MODE button to confirm, the display will show
OFF
Change the Countdown Time
PRO-TIP: If timer is in LOCK MODE, you may not be able to
make any changes to the set time.
To start or stop countdown, press ON/OFF button.
To pause the countdown, press the Mode button.
1. Press the ON/OFF button until the screen shows OFF
2. Press and hold the + or – button to set the amount of
countdown time you want.
Countdown Operating Tips
• Checking Timer Setting — Press the + or – button to
check the timer setting. The display shows the timer setting
for 2 seconds.
• Setting Timer When Locked — To unlock the timer,
please see the Countdown Setup section.
• Setting Timer When NOT Locked — When timer is NOT
LOCKED, the user can adjust timer settings, but must turn
the timer OFF before adjusting
• Pausing a Countdown — When the timer is NOT locked,
press the MODE button to pause a countdown in progress.
Pause bars flash while the count holds steady. Press MODE
again to continue the countdown or press the ON/OFF
button to power the load OFF.
• Shortening or lengthening a Countdown in progress
— To change remaining countdown in progress, press
and hold the + or – button or the ON/OFF button until the
display shows the time setting you want for this cycle only.
When the timer begins its next cycle, the countdown will
return to the programmed setting.
• When locked you can only increase the amount of
time to the maximum time set.
• Using the Remote Switch in a 3-Way — When
controlling the timer with the remote switch, toggle the
remote switch once to toggle on or off.
INSTALLATION
PRO-TIP: When installing a timer with either a contractor
or motor load, a noise filter is recommended (ET-NF). An
example of single-pole and three-way wiring follow. For other
three-way wiring scenarios, go to www.
intermatic.com.
Disconnect the power at the service
panel.
1. Remove wall switches, if applicable.
2. Strip the existing wire ends to 7/16”.
3. Wire the timer into the wall box.
Single-Pole Wiring
Line Wire A
Wire D
Wire B
Wire C
Neutral
Load
Timer
A Black — Connects to the hot (black) wire from the Power
Source
B Blue — Connects to the other wire (black) from the load
C Red — This wire is not used in single-switch installations.
Capwith a twist connector
D Green — Connects to the supplied ground
Three-Way Wiring
PRO-TIP: The distance between the timer and the remote
switch must not exceed 100 feet.
The wiring shown below is for a timer replacing a three-way
switch at the line side.
Wire E
Line Wire A
Wire D
Wire B
Wire C
Neutral
Load
Timer
3-Way
Switch
A Black — Connect to the wire removed from the “COMMON”
terminal of the switch being replaced
B Blue — Connect to one of the other wires removed from
the switch being replaced. Record the wire color
connected to the blue wire for use during load-side
installation
C Red — Connect to the remaining wire removed from
the switch being replaced. Record the wire color
connected to the red wire for use during load-side
installation
D Green — Connect to the supplied ground
E Jumper Wire — At the other three-way switch, install the
supplied jumper wire between wire B and the
common terminal
FINALIZING INSTALLATION
1. Make sure the provided twist-on wire nuts are secure, then
tuck the wires into the timer wall box, leaving room for the
timer.
2. Using the provided screws, secure the timer to the wall
box.
3. Cover the timer with the wall plate and secure using the
provided screws.
4. For three-way wiring, install the remote switch in wall box.
5. Install the wall plate and secure.
6. Reconnect the power at the service panel.
Testing the Timer
Make sure the timer displays MAN (manual) MODE during
testing
Single-Pole Wiring Test
To test the timer, press ON/OFF several times. The timer
should “click” and the Controlled light or device (load) should
turn ON or OFF.
Three-Way Wiring Test
1. To test the timer, test with the remote switch in each of its
two positions.
2. Press ON/OFF several times. The timer should “click” and
the controlled light or device (load) should turn ON or OFF.
3. If the timer clicks, but the load does not operate:
a. Disconnect the power at the service panel.
b. Re-check wiring and make sure the load is functional.
c. Reconnect the power at the service panel.
d. Retest.
4. If timer clicks, but the load only operates when the remote
switch is in one of its two positions, repeat Step 3, a-d, but
interchange the two traveler wires (wires Between the timer
and the remote three-way switch) connected to red and
blue timer wires
PRO-TIP: Consult a qualified electrician if the switch and
timer fail to operate as intended
5. When the timer “clicks” and the controlled device turns
ON and OFF as programmed, the timer is successfully
installed!
TROUBLESHOOTING
Note: : For more troubleshooting tips, contact Intermatic
Technical Support at: 815-675-7000.
Observed
Problem
Possible Cause What to Do
Timer display is
blank, and the
timer does not
“click” when you
try to turn it on
or off.
• Battery is
missing
• Battery has no
charge
• Battery was
installed
incorrectly
• Install a battery
• Replace the
battery
• Make sure
the battery
is installed
correctly.
TROUBLESHOOTING CONT.
Timer does not
switch ON/OFF
but display looks
normal
• Timer is not
set in AUTO,
RAND, or MAN
MODE
• Battery is low
and needs
replaced
• Press MODE
to select the
operational
MODE you
want to use
• Replace battery
Timer resets to
12:00
• Timer is
installed in
conjunction
with a contactor
or motor load.
• Install a noise
filter (ET-NF) at
source of noise
Timer won’t
enter AUTO or
RAND mode
when “MODE” is
pressed
• No schedule is
selected
• Proceed to
“Programming
Standard
Events” section
Timer operates
at incorrect
times, or skips
programmed
EVENT times
• The active
schedule has
conflicting or
incorrect events
• Battery may be
weak.
• Timer is in
RAND mode,
which varies
switching times
up to +/- 15
minutes
• Review
programed
events, revise
as necessary.
• Replace
battery.
• Select “Auto
Mode”
Load only
operates when:
remote (three-
way) switch is in
one position, or
timer ignores the
remote switch.
• The remote
switch is wired
incorrectly.
• Recheck
the wiring,
especially for
the jumper
The timer ignores
three-way remote
switch even
though it is wired
correctly, or the
load turns off
immediately after
being turned ON
• The remote
switch or
timer is wired
incorrectly.
• There is an
excessive
length of wire
(greater than
100 feet).
• The remote
switch is not
functioning
properly or
worn out.
• Contact a
qualified
electrician
The battery tray
is difficult to
replace.
• Battery is not
seated in the
tray
• The tray is
misaligned
• The contact
tabs in tray are
bent
• Seat the battery
in the tray, then
reinstall.
TROUBLESHOOTING CONT.
The timer
operation is
sluggish, or not
switching ON/
OFF at all.
• Even though
the BATT”
message is
not displayed,
the battery is
getting weak.
• Test battery by
pressing the
ON/OFF button,
there should be
a “click” sound
on the timer
• Replace the
battery
Timer shows ON
but the light or
other controlled
device is OFF.
• The light or
controlled
device itself
may be
switched OFF.
• The breaker
may be tripped
• Loose wiring
connection
• Make sure
the light or
controlled
device is
switched ON
and plugged in.
• Check for a
tripped breaker
• Check wiring
The timer waits
1 second to
power OFF after
pressing the ON/
OFF button or
operating the
remote switch
• This is intentional to allow you to
operate the switch a second time
to restart without powering the load
OFF.
The timer is
acting erratically.
• Operating
software
has become
confused and
needs to be
reset.
• Perform a
Reset: Follow
instructions to
“Factory Reset
Timer”
The timer
setting cannot
be changed,
or the PAUSE
button does not
function.
• The timer
setting or pause
functions are
locked.
• Reset DOWN
(countdown)
MODE by
proceeding to
Step 1, under
“Countdown
Setup”
LIMITED WARRANTY
Warranty service is available by either (a) returning the
product to the dealer from whom the unit was purchased
or (b) completing a warranty claim online at https://www.
intermatic.com/Support/Warranty-Claims. This warranty is
made by: Intermatic Incorporated, 1950 Innovation Way,
Suite 300, Libertyville, IL 60048. For additional product or
warranty information go to: http://www.Intermatic.com or call
815-675-7000, M-F 8AM to 4:30pm
7/16"
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