Gain/Throttle; Lead Stage; Lead Auto Rotate - Weil-McLain BSC Installation And Operation Instruction Manual

Modulating boiler control with bacnet communication option
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GAIN/THROTTLE

Adjustable from -10 to +10
Adjustable from 1.0 to 10.0
SELECT: MENU/Gain
NORMAL OPERATING MODE
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.
(for example, from 0 to -2). Wait for at least 15 minutes before evaluating how the change has affected the system.
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
modulation in one percent increments based on the Set Point and Gain value.
System Temperature
More than 1 x Gain above Set Point
1 x Gain above Set Point
0.5 x Gain above Set Point
At Set Point
0.5 x Gain below Set Point
1 x Gain below Set Point
2 x Gain below Set Point
3 x Gain below Set Point

LEAD STAGE

Adjustable from A through D
SELECT: MENU/Lead Stage
recommended.
available when manually selecting a new Lead Stage.

LEAD AUTO ROTATE

Manual, Time, Last-On
SELECT: MENU/System Settings/Auto Rotate
the Stages and can help prolong the life of each unit.
BSC Installation and Operation Manual
Default: 0 in Normal Operating Mode
Default: 5 in Process Operating Mode
1 ), the Gain adjusts the aggressiveness of
PROCESS GAIN/THROTTLING RANGE TABLE
Lead Stage is OFF
Lead Stage at 1%
Lead Stage at 50%
Lead Stage at 100%
Lead Stage at 100%, 1 Lag at 50%
Lead Stage at 100%, 1 Lag at 100%
Lead Stage at 100%, 2 Lag at 100%
All Stages at 100%
Default: A
<A>
Default: Time
<A>
--------- GAIN ---------
0
[
Stages Modulation
--- LEAD STAGE ---
A
B
C
D
140 F
<A>
B
50% OFF
LEAD AUTO ROTATE
Manual
Time
Last On
]
C
D
OFF
STB
19

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