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Chimney Damper Settings
The chimney damper is a unique device because it contains a fan and an inlet. If you use this type of device, install
the fan portion as a ridge fan and the damper portion as a chimney damper.
Proportional Control
The following menu items allow the chimney damper to open or close based on the number of ridge fan groups
running. When interlocked fans are disabled due to open curtains (or no ridge fans are installed), the chimney
damper opens or closes based on curtain opening size. The chimney damper attempts to open the same number of
inches as the curtain with the largest opening size. For example, a curtain has a maximum opening size of 48 inches,
and the chimney damper’s maximum opening size is 10 inches. When the curtain is open 10 inches, the chimney
damper is fully open at 10 inches.
Cool Fan Groups On \ Opening Size
Input the desired chimney damper opening size for each potential number of simultaneously operating ridge fan
groups. The fans must be designated as cool in the Operating Mode menu (this includes combinations such as tunnel
& cool). You can specify one through nine fan groups. Press
SYSTEM SETUP
Hot-Key then
RIGHT
or
LEFT
arrow. Use
the
PLUS
or
MINUS
key to scroll Cool Fans and Open readings.
When variable speed ridge fans are installed, they can be entered in 0.5 increments to account
for ramping operating speeds. Press the PLUS or MINUS keys when this menu item is displayed to
change the setting number (one through nine).
CHIMNEY DAMPER GROUP #2 SETTING Z1-S01
#01 Cool Fans ON: 0 Open: 0
CHIMNEY DAMPER GROUP #1 SETTING Z1-S01
#02 Cool Fans ON: 1 Open: 3
SYSTEM
SETUP
+
-
or
Interlock to Fan
This is an extension of the Cool Fan Groups On / Opening Size menu item. Instead of opening a chimney damper
based on the number of fans running, you can interlock specific ridge fans with a chimney damper. That way, the
chimney damper opens based on interlocked ridge fans.
CHIMNEY DAMPER GROUP #1 SETTING Z1-S01
Natural Interlock 1 to: Ridge Fan #1
Interlock up to nine specific ridge fan groups with a chimney damper. Press the
PLUS
or
MINUS
key to change the
Interlock number (one through nine). This menu item only allows selection of ridge fans whose “Use for Proportional
Control” setting is YES. You can select each fan group only once for each chimney damper.