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"Zone Control Blocks"
Your new controller has six (6) "Zone Control Blocks". Each "Zone Control Block" contains the necessary switches
and lights to control the misting operation for that zone. Each "Zone Control Block" contains the following three (3)
items: 1) a "Zone On Indicator (LED lamp)"; 2) a "Seconds of On Time" rotary switch; and 3) a "Minutes Between
Cycle" rotary switch. The operation of each of these zone controls is described in detail below.
"Zone On Indicator (LED Lamp)"
The "Zone On Indicator" is a light located at the top of each "Zone Control Block" on your new controller. The light
is an indication that 24VAC power is being delivered to the zone’s valve.
"Seconds of On Time"
The "Seconds of On Time" switch is located in the top portion of the "Zone Control Block". Rotating the selector
switch clockwise will increase the amount of time during which 24VAC output power will be delivered to the appro-
priate valve. Rotating the selector switch counter-clockwise will decrease the amount of time. "Seconds of On Cycle"
selections for the NOVA controller are listed below:
Time Extender Available Selections (Seconds)
1X
2, 4, 6, 8, 10, 12, 15, and 20
2X
4, 8, 12, 16, 20, 24, 30, and 40
3X
6, 12, 18, 24, 30, 36, 45, and 60
"Minutes Between Cycle"
The "Minutes Between Cycle" switch is located at the bottom of each "Zone Control Block". Rotating the selector
switch clockwise will increase the amount of time between the start of each "On" cycle
when 24VAC power is delivered to the appropriate valve. Rotating the selector switch counter-clockwise will decrease
the amount of time. The "OFF" position will prohibit any valve operation; while the “ON” position will force the valve
into continuous operation. The "ON" and "OFF" positions are considered manual operations. "Minutes Between
Cycle" selections for the controller are listed below:
Time Extender
Available Selections (Minutes)
1X
ON, 2, 4, 6, 10, 15, 30, 60, and OFF
2X
ON, 4, 8, 12, 20, 30, 60, 120, and OFF
3X
ON, 6, 12, 18, 30, 45, 90, 180, and OFF
"Power Switch"
The "Power" switch turns on and off all power to the controller. Safety requirements dictate that the unit be turned
"Off" when the unit is being installed or serviced, or when valves are being attached to or removed from the controller.
Self-Resettable Internal Fuse
Each controller is supplied with a 2 AMP self-resettable internal fuse to prevent damage to the internal circuits as well
as to valve wiring and low wattage solenoid valves. The fuse will interrupt all internal power to the controller and the
24VAC power to the valves. Should the 'short circuit' still exist, the fuse will again trip and interrupt service.
Understanding Your Controller
