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® 2018 Valco Companies, Inc.
Stir, Sidewall, Tunnel, Pit and Ridge Fan Settings - continued
This item is for timed fans. Input the power setting that should be used when the fan is operated on time.
VARI - TUNNEL FAN GROUP #1 SETTING Z1-S01
Timed Power Setting: 40
Test the power setting as you adjust it by selecting YES when prompted. Press the
PLUS
or
MINUS
keys to switch
between YES and NO.
VARI - TUNNEL FAN GROUP #1 SETTING Z1-S01
Test New Power Setting: YES
Input the power setting that should be used for this fan when the building is in purge mode.
VARI - TUNNEL FAN GROUP #1 SETTING Z1-S01
Purge Mode Power Setting: 50
Test the power setting as you adjust it by selecting YES when prompted. Press the
PLUS
or
MINUS
keys to switch
between YES and NO.
VARI - TUNNEL FAN GROUP #1 SETTING Z1-S01
Test New Power Setting: YES
Select this feature when you want the fan group to run while the building transitions into or out of tunnel mode.
Typically, several fans are allowed to run during the transition to continue effective ventilation. Too many fans can
create excessive suction and cause inlets to stick shut.
VARI -
TUNNEL FAN GROUP #1 SETTING Z1-S01
Run While ENTRY/EXIT of Tunnel Mode?:YES
Select this feature when you want the fan group to be used in proportional control. When a fan group is included
in proportional control, it is counted in determining the total number of fan groups running. The total number of
running fan groups determines the positioning of inlets and curtains. Refer to the Curtain Settings and Inlet Settings
sections for more information about proportional control.
VARI - TUNNEL FAN GROUP #1 SETTING Z1-S01
Use for Proportional Control?: YES
• Stir fans cannot be used for proportional control since they are not designed to produce negative
static pressure in a building.
• ”Use for Proportional Control” should be set to No, if this fan is going to be turned off when a
curtain or inlet is open wide enough. Otherwise, the fan status and inlet/curtain opening size will
conflict causing the airway to continually open and close, because the proportional fan will be
turning on and off.
Timed Power Setting
Purge Mode Power Setting
Run While ENTRY/EXIT of Tunnel Mode
Use for Proportional Control