Cumberland EXPERT-50, Руководство пользователя

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Expert-50 rev.10
TUNNEL VENTILATION
The Expert-50 allows you to control endwall curtains for tunnel ventila-
tion. The user determines when to start tunnel ventilation by defining
the starting fan stage and the stage at which the curtain is fully opened.
When the first tunnel stage is reached, the curtains are opened accord-
ing to the opening time defined for the first stage. When half of the
opening time has elapsed, the fans for the stage are activated. When
the next tunnel stage is reached, the curtains continue to open according
to the opening time defined for that stage, etc. When the temperature
drops, the same sequence is executed in reverse order. The following
diagram sums up the operation of the first two tunnel stages.
Set Point
Start Temp.
Tunnel 1
Start Temp.
Tunnel 2
Tunnel 1
Tunnel 2
Differential
Differential
Curtains start
opening - then
tunnel 1 fans
turn on
Tunnel 1 fans
turn off
Tunnel 2 fans
turn on
Curtains start
closing - then
tunnel 2 fans
turn off
T°
Ventilation
Level
The user must also define a minimum animal age for using tunnel ventila-
tion. Tunnel ventilation is never activated unless this age has been reached.