Platinum Plus
75
decreasing ventilation levels once the
temperature is below the Happy Zone.
h. Fan Cycle Time
(seconds, 0 sets manual
entry for off time): enter the default cycle
time you wish for the cycle timer on all
lines of the ventilation table. Factory
default is five minutes (300 seconds). If
you set this to 0, the controller provides an
OFF column in place of the variable speed
column, so you can set independent ON
and OFF times on each ventilation level.
The variable speed settings are retained in
memory in this case.
i. Tunnel Exit Delay (minutes)
: this is the
minimum length of time to wait to exit
tunnel after reaching the exit conditions.
4. Static Pressure
a. Wind Gust Delay Time (sec): length of
time to delay before making pressure
adjustments to unexpected pressure
changes. Note that the Platinum Plus uses
zero delay when its actions result in
pressure changes.
b. Pressure During Tunnel (N-0/Y-1):
select whether to use the tunnel pressure
settings, or to simply open the tunnel
curtain without regard to pressure.
c. Transitional Tunnel (N/0/Y-1)
: select
whether to supplement side ventilation
pressure control with the tunnel inlet
curtain in the event target pressure cannot
be reached with the side vents already at
100% open. In some cases, the maximum
number of fans in cross ventilation
exceeds the capacity of the side vents to
open enough to obtain target static
pressure. If this option is yes, then the
Platinum Plus opens the tunnel curtain
enough to meet the target pressure.
d. Incoming Air Low Temperature
: this is
the temperature below which the Platinum
Plus maintains the Pressure At Low Temp
pressure setting in Control, Pressure for
side or minimum ventilation. At
temperatures between this temperature
and the Incoming Air High Temp, the
controller interpolates values. The outside
temperature, as defined in Install |
Temperature Definition is the incoming
air low temperature.
e. Incoming Air High Temperature
: this is the
temperature above which the Platinum Plus
maintains the Pressure At High Temp
pressure setting. The outside temperature, as
defined in Install | Temperature Definition is
the incoming air low temperature.
f. Emergency Static Pressure Delay
(seconds): length of time to wait for a high
pressure above the high alarm setting before
entering emergency pressure operation. In
this event the controller opens all known air
sources to provide air. This situation typically
occurs when there is an equipment failure
preventing the usual air sources from
functioning. An emergency pressure event
latches the controller until the operator
performs an Alarm Reset in the Management
Menu. All devices continue to operate at their
temperature settings except for those that
allow air to enter the facility.
g. Curtain Position in Emergency Pressure,
%: for many users the default 100% open is
satisfactory. However, in cold climates with
young birds, it may be necessary to prevent
total opening of curtains in the event of a side
vent failure producing high pressure. The
curtains (tunnel and natural curtains) open
this amount in an emergency pressure event.
h. Low Pressure Alarm Minimum Level
during minimum ventilation: low pressure
alarms are ignored when the ventilation level
is below this setting. Note that the Platinum
Plus accounts for no pressure periods during
cycling fans, so it is normally not necessary
to set this parameter.
i. Low Pressure Alarm Minimum Level
during tunnel ventilation: low pressure
alarms are ignored when the ventilation level
is below this setting and the control is in
tunnel ventilation.
j. Time To Produce Pressure
: Enter the length
of time to reach target pressure when
minimum ventilation fans cycle on. The
default of 10 seconds is satisfactory in most
cases, but some buildings take longer to reach
target pressure. If the automatic inlet advance
fails to function, try increasing this parameter
to 20 seconds.
k.
Cool Pad:
The evaporative cooling relay options include
‘Cool #’, ‘Cool Pad #’ and ‘Fogger #’. The
Cool and Cool Pad options share the band
parameters. The Flush parameters apply only
to Cool Pad # relays, not to Cool # relays.
l. Temperature Band
: on/off differential or
Happy Zone with respect to temperature for
the ‘Cool #
’ and ‘Cool Pad #’ relays. These
normally control the water pump for the cool
cells.
m. Humidity Band
: on/off differential or
Happy Zone with respect to inside
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