Page 28
ECS-4+
AIR INLET PRESSURE SET POINT
The air inlet static pressure set point
establishes the desired room static pressure
level. When the room static pressure rises
above the static pressure set point, the air inlet
baffle board begins to open. When the static
pressure of the room drops below the static
pressure set point, the air inlet baffle board
begins to close.
The Air inlet static pressure set point is
adjusted in 0.01” H
2
O (water) increments from
a minimum setting of 0.00” H
2
O to a maximum
setting of 14” H
2
O
Adjusting the static pressure set point:
•
rotate the Selector dial to position (7),
•
rotate the Adjustor dial counterclockwise to
decrease the relative set point, clockwise to
increase it.
The air inlet static pressure set point is
displayed on the front panel.
Example:
A static pressure set point of 0.08” H
2
O is selected.
When room pressure rises above 0.08” H
2
O , and the air
inlet timer delay has expired as set by secondary
function (8), the air inlet baffle board begins to open.
Due to a built-in 0.01” hysteresis, when the room
pressure drops to 0.07” H
2
O , and the same timer has
expired, the air inlet baffle board begins to close.
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