Grasslin GM40E, DTA40E2 Programming Instructions Manual
http://waterheatertimer.org/Programmable.html#GM40E
http://waterheatertimer.org/How-to-wire-GM40-timer.html#GM40E
GM40E PROGRAMMING INSTRUCTIONS
SPECIFIERS GUIDE
Time switch shall contain an OFF/ON manual override. For Carry-over: The time switch
shall have a battery backup capable of over 7 days reserve carry-over.
LCD Display
w/Backlight
Timer Key
Clock Key
Reset Button
Amber and Green
LED Lights
Day Key
Hour (h+)
Key
Minute (m+)
Key
Override Key
GM40E Timer Module
One Minute Intervals
40 Amp Rated
Contacts
DTA40E2 PROGRAMMING INSTRUCTIONS
INITIAL SETUP
Apply power to the unit as
llustrated in the wiring dia-
i
ram. Then push the
g
key with a paper clip or
pencil tip. The display will
flash as shown.
Press and release
button to start setting the time (display will stop flashing)
SETTING CURRENT TIME
1. Press and HOLD the Clock key
uring this entire procedure.
d
2. Press the
hours.
3. Press the
minutes.
4. Press the
the day.
5. If any keys are pressed for a pro-
longed period, the display will
advance rapidly.
6. Release the
time and day have been entered.
Now the timer is in operation and ready to be programmed.
The colon “:” after the hours will continuously flash indicating
that the time is advancing.
DAYLIGHT SAVINGS TIME ADJUSTMENT
1. To enter Daylight Savings Time, simply press both the h+
and m+ keys simultaneously.
2. The display will indicate “DST” and advance the hour by
one.
3. To end Daylight Savings Time, simply press both the
and m+ keys simultaneously. “DST” will disappear from the
display and the hour will be increased by one.
PROGRAMMING ON/OFF EVENTS
Press the Timer key once. The display will change as shown
to the right.
TIMER 1 ON – – : – – appears.
h+ key to advance the
m+ key to advance the
Day key to advance
Clock key once the
eset
R
Clock
h+ and m+ keys
G
M40E
h+
1. Using the h+ and m+ keys, enter the desired ON time. By
default, all days are indicated, thus all 7 days will be programmed. When complete, press the
TIMER 1 OFF – – : – – will be displayed.
2. Using the
default, all days are indicated. When complete, press the
Timer key once.
3. If complete, press the
and day.
4. Note that a total of 7 ON and 7 OFF events can be programmed.
BLOCK PROGRAMMING
To change the day selection, simply keep pressing the Day
key and the display will change as follows:
Individual Day (MON, TUE, etc.) MON-WED-FRI
MON~FRI TUE-THU-SAT
SAT~SUN MON~WED
MON~SAT THU~SAT
MON~SUN
Follow the previous steps to complete programming.
REVIEWING PROGRAMS
1. To review the programs that have been entered, simply
press and release the
you will be able to scroll thru the programs.
2. Any program can be edited simply by pressing the
and
the changes.
3. When complete, press the
time and day.
DELETING PROGRAMS
1. To delete a particular program, simply press the Timer key
until the desired program is displayed.
2. Then press the
Then press the
program.
3. When complete, press the
time and day.
MANUAL OVERRIDE
essing the manual over
Pr
OFF.
INITIAL
When you initially program the unit, it may be necessary to
ess the manual over
pr
to determine if it should be ON. For example, if the current
time is 2:00PM and you just programmed the unit to turn ON
at 1:00PM, you will need to pr
n it ON. Ther
tur
(automatic).
h+ and m+ keys, enter the desired OFF time. By
Clock key to return to current time
Timer key. Each time you do this,
Day keys. Then press the Timer key in order to accept
Clock key to return to current
h+ and m+ keys until – – : – – is displayed.
Timer key in order to delete this particular
Clock key to return to current
ride key will alternate the unit ON or
TUP
AR
ST
ride key as the unit will not look back
ess the manual override key to
, the unit will r
eafter
Timer key once.
h+, m+,
esume normal operation
3
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