Acclima ACC-SYS-024 User Manual - page 20
Installation and Operation Manual
Page 17
For example, if the water source provides 80 GPM of water, and program S1 includes 4
zones, each using 20 GPM, the system will water all four zones simultaneously at the
program start time. If program S2 includes 3 zones, each using 40 GPM, the system will
water the first 2 zones for the programmed time simultaneously and the third zone by
itself thus maximizing the water source.
Notice the message near the bottom of the display. The system will alert you if the zone
will be used in multi-zoned watering. The default "unknown" value prohibits multi-zone
watering for that zone and the message reads: "This zone will water alone." If a number
has been entered into the Zone Water Use field then the message will read: "Multi Zone
Watering Possible."
Press the Back soft key to return to the Flow Management screen.
Test
NOTE: This option provides advanced control of the irrigation, and is not required for the
controller to operate.
The Test function provides access to two additional screens that help you diagnose
wiring and hydraulic problems with your irrigation system. The main screen tells you the
condition of the back-up battery and the box temperature.
If the displayed Battery Voltage drops to 2.2 volts or below replace the battery with two
Alkaline AA cells. Do this with the power on so that you will not have to reset the clock.
The battery compartment is on the back edge of the pull-out panel. Remove the battery
cover and replace the batteries noting the proper polarity.
The Box Temperature should not be allowed to exceed 150 degrees Fahrenheit. High
temperatures will cause the display to stop working properly and in the extreme could
melt the box. The internal transformer heats the box 10 to 20 degrees above its
surrounding temperature. Do not mount the box in direct afternoon sunlight. If it is to be
mounted in another enclosure make sure that the enclosure is ventilated. Use a metal
conduit and power junction box for connecting the 110 VAC power. The metal will help
pull the heat out of the transformer. .
Test Valve Current
To perform an electrical test on the system wiring and solenoid valves use the Next and
Prev buttons to access the Test Valve Current field. Then press +.
Immediately the controller will begin measuring solenoid current, sensor current and
leakage current on each of the 36 zone terminal circuits and on the master valve and
pump terminals. You can scroll through the results using the Next and Prev buttons. If
you want to verify a reading you can press the + button and the highlighted terminal will
be tested again.
Valve current varies by manufacturer but is generally in the 180 to 250 mA range. If it is
below 100 mA or above 350 mA you probably have a failing valve. The controller is
designed to operate loads up to 600 mA. If the current exceeds 600 mA, replace the
solenoid immediately.
Sensor current is typically 40 mA. If a sensor is not working and its current is above 50
mA or below 25 mA then it needs replacement, provided the wiring leading to it is
insulated, securely fastened and unbroken.
Leakage current is the current that flows through the ground between a zone wire and