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Remote On/Off with Enable
A combination of the Remote On/Off and the Remote Enable/Disable digital inputs. This
acts as a Remote Enable/Disable digital input as described above. However, it also
requests that fans start in the associated Hood Groups.
50% Minimum Speed through 100% Minimum Speed
A Minimum Speed digital input is a level sensitive input. When active, this digital input
dictates that the minimum fan speed for all fans in its associated Hood Group be at least at
the digital input’s listed minimum. If multiple minimum speed digital inputs are associated
with the same Hood Group and they are active at the same time, the highest minimum
speed is applied. The minimum speed digital input also needs to be higher than the
Exhaust Hood’s configured minimum speed to take effect. For example, if one digital input
is set for 50% minimum speed and another is set for 80% minimum speed and both digital
inputs are associated with the same Hood Groups, then if both digital inputs are active
then all fans will have a minimum run speed of 80%. Note that the Minimum Speed digital
inputs do not command fans to turn on or off but only set the minimum speed for the fans
when they are on.
External Fault
An External Fault digital input is a level sensitive input. An External Fault input can be
used to signal the Intelli-Hood system that a fault occurred with some other equipment
related to the Intelli-Hood system. When active, the system will report on the Touchpad
and, when fans are running, command the associated Hood Groups to run its fans at full
speed. In addition, when the digital input changes state from inactive to active, the
External Fault digital input commands the associated Hood Groups to turn on their fans.
Lights On/Off
A Lights On/Off digital input is an edge sensitive input. Each Touchpad and Auxiliary
Touchpad has a Lights button for turning lights on and off, however the Lights On/Off
digital input can be used if the user would prefer to use existing toggle switches for
turning lights on and off. When this digital input changes state from inactive to active, it
commands lights to turn on for associated Hood Groups. If the digital input changes state
from active to inactive, it commands lights to turn off for associated Hood Groups. Since
this digital input is edge sensitive, multiple digital inputs can be used to turn on and off the
same set of lights.
