Walchem EZ Series Instruction Manual - page 15
12
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 operations.
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 cycle 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
desired 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 programming.
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
nd
” will also become backlit showing
that the day is in
the 2
nd
week. All programming functions are the same and SEL will scroll through each setting.
Pressing 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.