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Full Opening Size
Input the full opening size.
CHIMNEY DAMPER GROUP #1 SETTING Z1-S01
Full Opening Size (Inches): 14”
Full Open Travel Time
Input the time it takes for the chimney damper to open completely. The controller uses this time to determine how
open the damper is, so enter the exact travel time. If a Position Sensor is attached to the Chimney Damper, the
travel time will be set automatically when the Position Sensor is calibrated.
CHIMNEY DAMPER GROUP #1 SETTING Z1-S01
Full Open Travel Time: 0:45
Chimney Damper Settings - continued
CHIMNEY DAMPER GROUP #1 SETTING Z1-S01
Cooling Open Sizes are: Proportional
This is an extension of the Cooling Fan Groups On / Opening Size menu item. It allows two settings:
Proportional - the curtain will open based on a percentage of the fans running between each level in the Fan Groups
On settings. This allows a slow ramping of the opening of the curtain as the fans turn on and off.
Stepping - the curtain will open to the specified size for each level in the Fan Groups On settings and will not move
again until the number of fans running reaches the next level. The advantage of the Stepping setting is so the curtain
does not open and close rapidly when a variable speed fan increases and decreases its speed.
Proportional versus Stepping
Fan Groups
On/Sizes
# of
Fans ON
Proportional
Opening
Stepping
Opening
#1 1/5 in.
1
5 inches
5 inches
1.5
7.5 inches
5 inches
2
10 inches
5 inches
2.5
12.5 inches
5 inches
#2 3/15 in.
3
15 inches
15 inches
An example of this would be: