19
BSC Installation and Operation Manual
GAIN/THROTTLE
Adjustable from -10 to +10
Default: 0 in Normal Operating Mode
Adjustable from 1.0 to 10.0
Default: 5 in Process Operating Mode
SELECT:
MENU/Gain
NORMAL OPERATING MODE
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), the Gain adjusts the aggressiveness of
the BSC PID logic to control how much modulation is changed when the system
temperature/pressure is different from the Set Point. It is based on he rate of change.
--------- GAIN ---------
0
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(for example, from 0 to -2). Wait for at least 15 minutes before evaluating how the change has affected the system.
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above the Set Point), increase the Gain by two numbers (for example, from 0 to 2). Wait for at least 15 minutes before evaluating
how the change has affected the system.
PROCESS OPERATING MODE
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modulation in one percent increments based on the Set Point and Gain value.
PROCESS GAIN/THROTTLING RANGE TABLE
System Temperature
Stages Modulation
More than 1 x Gain above Set Point
Lead Stage is OFF
1 x Gain above Set Point
Lead Stage at 1%
0.5 x Gain above Set Point
Lead Stage at 50%
At Set Point
Lead Stage at 100%
0.5 x Gain below Set Point
Lead Stage at 100%, 1 Lag at 50%
1 x Gain below Set Point
Lead Stage at 100%, 1 Lag at 100%
2 x Gain below Set Point
Lead Stage at 100%, 2 Lag at 100%
3 x Gain below Set Point
All Stages at 100%
LEAD STAGE
Adjustable from A through D
Default: A
SELECT:
MENU/Lead Stage
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recommended.
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available when manually selecting a new Lead Stage.
--- LEAD STAGE ---
A
B
C
D
140 F
<A> B C D
50% OFF OFF STB
LEAD AUTO ROTATE
Manual, Time, Last-On
Default: Time
SELECT:
MENU/System Settings/Auto Rotate
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the Stages and can help prolong the life of each unit.
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LEAD AUTO ROTATE
Manual
Time
Last On