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Min. vent off time day 21 (sec): Set the off time for minimum ventilation cycle timer during
emergency for growth day 21
.
•
Delay time to start fans (sec): Set a delay time for the card to wait upon entering emergency
before starting fans. This delay gives air inlet devices time to pre-position before they turn on
and build static pressure. Otherwise, the static pressure could cause air inlet curtains to stick to
wire mesh barriers
.
4.12
Water on Demand
The Water on Demand (WOD) function enables regulating the pressure of all nipple lines in the house
from one central point, ensuring uniform pressure in all lines. The function also enables immediate
transitioning between different preset pressures of all nipple lines in the house by closing and opening of
valves at the central point (manual or solenoid according to the mode installed).
Farm Premium enables controlling the water cycle times using relays and controlling the water pressure
using analog input and output sensors. The two methods are complimentary. A user can use either one
alone or both.
•
•
NOTE:
The two methods are complimentary.
4.12.1
R
ELAY
C
ONTROL
You can specify up to 50 time periods.
1. In
Installation > Relay
Layout
designate up to four relays as WOD valves (relays 179 to 182).
Refer to page 107 for details.
2. In
Device > Water on Demand
, configure the following parameters:
o
Day: Specifies the day to activate the selected WOD valve. You can define days as
negative days. Enter the number and then press the +/-key.
o
Time: Specifies the time to activate the enabled valves. The valves continue running until
the next scheduled day and time.
o
WOD Relay: Enable the required relays.
3. Set the WOD alarms in Alarm Setting Help | Set Definitions, page 70.
WATER ON DEMAND
Day Time
hh:mm
WOD-RLY
1 2 3 4
1
12:00
2
6:00
3
8:00
5
10:00
7
12:00
9
14:00