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EXPERT 64+, rev.12
EXPERT 64+
6.2. Fan & Tunnel Fan Groups
6.2.1. Principle of Operation
Definition:
Fan & tunnel fan groups : a fan group is a
combination of relays that are simultane-
ously activated according to the average
house temperature. These relays are used to
activate cooling devices such as fans, tunnel
fans or mist units.
Operating Diagram
a Fan Group
Fan Group
Status
House
T°
Stop T°
Off
On
Start T°
Principle of Operation:
The operation of fan & tunnel fan groups is
totally flexible: the user defines the tempera-
ture at which each group starts/stops without
any restriction. The groups can overlap each
other, this means that when a new fan/tunnel
fan group starts, the relays of the previous
group
are not
deactivated.
The start and stop temperatures of fan &
tunnel fan groups are related to the house set
point. This means that when the house set
point changes, the start and stop temperature
of every fan & tunnel fan groups is adjusted
consequently.
Make sure that fans & tunnel fan groups
that are overlapping each other do not
share common relays.
Timer-based Relays for Cooling Devices:
Fan & Tunnel Fan Groups can activate relays
that operate in timer mode. This is useful to
activate mist units that follow the ventila-
tion’s progression. The timer composed of
an On Time and an Off time. Refer to section
4.7.2 to enable timer-based relays on fan &
tunnel fan groups.
Minimum Ventilation’s Fan & Tunnel Fan
Groups:
Refer to section 6.1.
Fan Group Shutoff in Transitional Ventilation:
The controller allows disabling fan groups at
the start-up of each tunnel fan group.
Tunnel Probe Set:
The probe selection that
is used to determine the average house tem-
perature can be changed when the control
enters in tunnel ventilation mode. This way,
the temperature probes that are located near
the curtain’s entry point can be removed from
the average house temperature calculation.
The tunnel probe set starts being used at the
start-up of a user-defined tunnel fan group.
The average temperature then becomes
measured by these probes. Refer to sec-
tion 4.5.3 to assign tunnel probes and refer
to section 6.3.2.2 to select the tunnel fan
group at which the tunnel probe set starts
being used.
Probe 1
Probe 2
Probe 3
Probe 4
Probe 5
Sidewall
Ventilation
Average T°
Probe 1
Probe 2
Probe 3
Probe 4
Probe 5
Tunnel Ventilation
Average T°
(tunnel probe set)
Summary of Contents for EXPERT 64 Plus
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