Acclima ACC-SYS-024 User Manual - page 25
Glossary
Page 22
Sunday and ends on Saturday.
Field Capacity
The maximum water holding capacity of soil. Any additional water added to soil above
Field Capacity will percolate through to the subsoil.
The Acclima SC24/36 manages the process of delivering water from the source to the
zone valves. This includes managing total water flow in multiple zone watering,
supporting zones that require a booster pump, providing valve delays and source
recharging, etc.
Management Allowable Depletion
The point of soil moisture content where plants begin to stress due to lack of water.
Nominally, this is the point at which sensor-controlled irrigation begins a watering cycle.
Master Valve
A valve installed between the water source and irrigation valves to control water flow to
the irrigation system. The controller automatically turns on the Master Valve circuit at the
beginning of each watering cycle
Master Valve Circuit
At the beginning of each irrigation cycle, before the first sprinkler valve is turned on, the
master valve circuit is energized to open the system master valve.
Odd/Even Schedule
The Odd/Even schedule enables odd or even numbered days of the month as watering
days.
Permanent Wilt Point
The soil moisture level where plant life dies.
Pump Control Circuit
The pump control circuit is energized to start the pump whenever a zone is active that
has been configured to use the pump.
Rain Delay
This feature enables all watering operations on timer programs (A, B, C, and D) to be
delayed from 1 to 14 days.
Rain Sensor
A rain sensor is a device required by some municipalities to suspend irrigation during a
rain storm. Such a device can be connected directly to the SC24/36. When water
activates the rain sensor the SC24/36 will suspend all watering operations, including timer
and sensor programs for as long as the sensor is activated. The SC24/36 accommodates
normally closed, common-interrupting type rain sensors.
Saturation
Saturation is the soil moisture level where the water begins to puddle on the surface due
to the inability of the soil to assimilate any more water. The saturation water causes
runoff and/or leeching to the subsoil until the moisture level reaches field capacity.
Saturation irrigation wastes water, leeches out nutrients, contaminates groundwater and