Watts AERCO Benchmark BMK750 Operation And Service Manual page 25

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 2: OPERATION
Main Menu → Advanced Setup → BST Cascade → Operating Controls → Temperature Control
SH Proportional Band
DHW Proportional Band
SH Integral Band
DHW Integral Band
SH Derivative Band
DHW Derivative Band
Cascade Deadband Hi
Cascade Deadband Lo
Other Temp Hi Limit
Main Menu → Advanced Setup → BST Cascade → Operating Controls → Valve Configuration
Output Signal Type
Control Mode
Valve Feedback
Valve Feedback Status
Valve Feedback Timer
Open Vlv Control Signal
Close Vlv Control Signal
Min # Valves Open
Main Menu → Advanced Setup → BST Cascade → Operating Controls → Reserve Unit Control
Reserve Unit Control
Reserve Relay Unit Addr
Enable System Threshold
Disable System Threshold
Main Menu → Advanced Setup → BST Cascade → Operating Controls → Setpoint Range
SH Setpt Low Limit
Other Setpt Low Limit
SH Setpt Hi Limit
Other Setpt Hi Limit
Setpoint Limiting
Setpoint Limit Band
Setback Schedule
Setback Start Time
Setback Stop Time
Main Menu → Advanced Setup → BST Cascade → Operating Controls → Lead/Lag
Lead/Lag Setting
Hours
Lead Unit
OMM-0145_A99 • GF-218 •
Numeric Entry
Numeric Entry
Numeric Entry
Numeric Entry
Numeric Entry
Numeric Entry
Toggle
Select
Enable/Disable
Read Only
Numeric Entry
Select
Select
Numeric Entry
Enable/Disable
Numeric Entry
Numeric Entry
Numeric Entry
Numeric Entry
Numeric Entry
Enable/Disable
Numeric Entry
Enable/Disable
Numeric Entry
Numeric Entry
Select
Numeric Entry
Numeric Entry
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9/18/2019
Generates a fire rate based on the error that exists between the
setpoint temperature and the actual outlet temperature. If the
difference is less than the value of these parameters, the fire
rate will be less than 100%.
Specifies the fraction of the output, due to setpoint error, to add
or subtract from the output each minute to move towards the
setpoint.
This value responds to the rate of change of the setpoint error.
This is the time that this action advances the output.
These parameters define a temperature range within which the
plant Outlet Temperature can drift above and below the
Setpoint (0 to 25°F)
The highest temperature for each Application the plant will meet
(Application in Cascade Configuration = Other, 40 to 210°F)
Select the output signal type of the selected output: Current or
Voltage.
Select On/Off, Linear Modulation or Delta T Modulation.
Choose Enabled or Disabled.
Displays the selected valve's current status (Valve Feedback =
Enabled).
The time to detect the Valve Feedback Status (30 to 240 sec,
Valve Feedback = Enabled).
Choose the signal that opens the valve: 0mA, 4mA or 20mA.
Choose the signal that closes the valve: 0mA, 4mA or 20mA.
Specify the minimum number of isolation valves that must stay
open at all times, including during plant standby (1 to 16, Unit
Mode in Cascade Configuration = BST Manager).
Enables/disables the Reserve Unit Control feature.
The address of the unit designated as the Reserve Unit (0 to
16, Reserve Unit Control = Enabled).
The plant fire rate that activates (closes) the Reserve Unit to fire
(20% to 100%, Reserve Unit Control = Enabled).
The plant fire rate that deactivates (opens) Reserve Unit (20%
to 90%, Reserve Unit Control = Enabled).
The setpoint's lower limit (40 to 245°F, Application in
Application Configuration = SH or Other).
The setpoint's upper limit (20 to 220°F, Application in
Application Configuration = SH or Other).
Enables/disables the Setpoint Limiting feature.
The number of degrees below Setpt Hi Limit the unit's outlet
temperature must fall before the unit restarts (0°F to 10°F,
Setpoint Limiting = Enabled).
Enables/disables the Setback Schedule feature.
The Setback period's start time (Setback Schedule =
Enabled).
The Setback period's end time (Setback Schedule =
Enabled).
Select: Run Hours, Unit Size or Select Lead Lag.
The number of hours after which the Lead unit is rotated (25 to
225 hours, Lead/Lag Setting = Run Hours).
Specify the address of the Lead unit (0 to 16, (Lead/Lag
Setting = Select Lead Lag).
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