Walchem EZ Series Instruction Manual page 15

Programming and Timer Use
CAUTION! Before use, check the time and date. Set to the local time and date before programming.
Incorrect time/date can result in incorrect operation.
1. Manual Operation
From the WAIT menu, pressing the MODE key will enter the manual mode. Pressing SEL will toggle the
pump on and off manually. The speed can be changed with the UP and DOWN arrows both running and
waiting. NOTE: The pump speed set in this menu will be the speed that the pump will run during timed oper-
ations.
2. Time/Date Setting
From the WAIT menu, holding the SEL key down for 3 seconds will enter into the Time/Date SET menu.
Using the HOUR and MIN keys, the time can be set using a 24-hour clock. The SEL key will cycle through
the days of the week.
Once the correct time and day of the week are set, pressing the MODE key will go back to the WAIT menu.
3. Timer Mode Selection
Pressing the MIN and SEL keys at the same time will bring up the Mode Selection menu. This menu is where
the Timer module is set to control in daily, weekly, or in 2-week modes. Use the UP and DOWN keys to cy-
cle through the three options and MODE to get back to the WAIT menu. Daily mode allows a max of up to 8
timed operations repeated every day. Weekly and 2-week modes allow a max of one timed operation per day.
4. Timer Operation Programming
Pressing the HOUR and SEL keys at the same time will bring up the Timer Programming menu. This menu is
where the individual operations are set – both start time and run time.
DAILY MODE:
Initially, the 1-SUN and NUM will both be backlit. NUM is backlit to signal that the number backlit is
used – i.e. program 1 in this case. Using the HOUR and MIN keys, the time for the first program can
be set (24-hour clock). Pressing the SEL key will change the menu to program the on-time to run the
pump (initially shows " 0M"). Use the UP and DOWN keys to program the # of minutes for the pump
to run. Pressing SEL again will then move to program the second program and the backlight will move
from 1-SUN to 2-MON. The clock and on-time settings are set in the same manner. Pressing MODE
will go back to the WAIT menu.
WEEKLY MODE:
Initially, the 1-SUN will be backlit signifying that Sunday is being programmed. If a program is de-
sired for Sunday, use the HOUR and MIN keys to set the time of the program. If no program is desired
for Sunday, pressing the SEL key will scroll through each day's two programmed settings – the time to
start and the run time. Pressing MODE will go back to the WAIT menu at any point in the program-
ming.
2-WEEK MODE:
Two week mode is similar and set just as the weekly mode, only after the first 7-SAT is programmed or
passed by and 1-SUN is again backlit, the "2
the 2 week. All programming functions are the same and SEL will scroll through each setting. Press-
nd
ing MODE will go back to the WAIT menu at any point in the programming.
From the WAIT mode, pressing MODE will move to the MANUAL menu. Check to make sure that the pump
speed is set at the rate desired during the timed operations. If not, use the UP and DOWN keys to change the
pump speed.
Pressing MODE again will display the current time and date. The pump is now operating in the TIMER mode
and will come on at the next programmed timer operation.
" will also become backlit showing that the day is in
nd
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