39
EXPERT 64+, rev.12
EXPERT 64+
Opening of the Curtain
as a Function of Temperature
Startup of stage B:
the curtain opens ac-
cording to the opening
time associated with fan
stage B
Startup of stage A:
the curtain opens ac-
cording to the opening
time associated with
fan stage A
Off
Fan
Stage B
Fan
Stage A
Fan
stage A
Stop T°
Fan
stage B
Stop T°
Fan
stage B
Start T°
Room T°
Fan Stages
Fan stage A
Start T°
(first tunnel
stage)
6.3.2. Endwall Curtain
6.3.2.1. Principle of Operation
An endwall curtain controls the air intake in tun-
nel ventilation. The operation of this curtain can
either be based on the average house tempera-
ture or it can be related to the static pressure
level. Refer to the section 4.4 to choose the
proper operating mode.
• CURTAIN: BASED ON THE TEMPERATURE
Tunnel Ventilation Start-up:
The activation of tunnel ventilation is linked
with the start-up of a user -defined tunnel fan
group. When the start temperature of this
group is reached, the curtain opens during to
the opening time associated with the group.
When half of the opening time has elapsed
or after a 120 second delay (whichever is
shorter) the tunnel fan group is activated.
The activation of every consecutive tunnel
fan group causes the curtain to open further
according to the opening time associated to
each group.
Minimum Age:
The minimum age is used to
prevent tunnel ventilation from being used
when the animals are too young. The user
defines the age above which the tunnel ven-
tilation mode can start. The curtain does not
open when animals are beneath this age.
Minimum Outside Temperature:
It is pos-
sible to define an outside temperature below
which the tunnel curtain remains closed. This
prevents opening the curtain when it is too
cold outside. This feature is optional and can
only be used if an outside temperature probe
is connected to the controller.
Opening Times:
An opening time of the cur-
tain is associated with the start-up of each
tunnel fan group. When the start temperature
of a tunnel fan group is reached, the curtain
opens according to the opening time that is
associated with that group.
Curtain is Fully Opened (100% opened) at:
When the start temperature of this fan stage
is reached, the curtain fully opens and remains
opened until the temperature decreases to the
tunnel fan group’s stop temperature.
Summary of Contents for EXPERT 64 Plus
Page 1: ...EXPERT 64 Temperature Controller User s manual...
Page 62: ......
Page 76: ...M 890 00077 rev 12 REV 07...
