Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 2: OPERATION
OMM-0145_A99
• GF-218 • 9/18/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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Derivative Band
Numeric Entry
Specifies the time that this action advances the output; it
responds to the rate of change of the setpoint error (0.00 to
2.00 min.).
Warm-up Prop Band
Numeric Entry
These three parameters eliminate Temperature
Overshoots during the “Warmup” period of a cold ignition
cycle by temporarily modifying the PID Gain parameter
during warmup.
Warm-up Integral Band
Numeric Entry
Warm-up Derivative Band
Numeric Entry
Restore Defaults
Yes/No
Choose
Yes
to reset all parameters to the factory default.
Main Menu
→
Advanced Setup
→
Performance
→
Temperature Control
→
Temperature Conformance
Deadband High
Numeric Entry
These two settings create an “outlet temperature zone”
(between Active Se Deadband High and Active
Setpoint
– Deadband Low) in which no Valve Position
corrections are attempted. (0 to 25°F for both)
Deadband Low
Numeric Entry
Temperature High Limit
Numeric Entry
The
unit’s maximum allowable working temperature. If the
unit reaches this limit, it will fault and shut down (40 to 210
°F).
Main Menu
→
Advanced Setup
→
Performance
→
Temperature Control
→
Setpoint Range
Setpoint Low Limit
Numeric Entry
Determines the upper and lower limit within which the
setpoint can vary.
Setpoint High Limit
Numeric Entry
Setpoint Limiting
Enable/Disable
Enables/disables Setpoint Limiting functionality.
Setpoint Limit Band
Numeric Entry
Sets the number of
°
F
below
Setpoint High Limit
the
unit’s outlet temperature must fall before the unit restarts (0
to 10
°
F,
Setpoint Limiting
=
Enable
).
Setback Schedule
Enable/Disable
Enables/disables Setback Schedule functionality
Setback Setpoint
Numeric Entry
The Setpoint that will be in effect during the Setback
period. (60°F to 245°F,
Setback Schedule
=
Enabled
).
Setback Start Time
Numeric Entry
The
Setback
period’s
start
time
(
Setback Schedule
=
Enable
).
Setback Stop Time
Numeric Entry
The
Setback
period’s
end
time
(
Setback Schedule
=
Enable
).
Main Menu
→
Advanced Setup
→
Performance
→
Temperature Control
→
FFWD Settings
FFWD Temp
Read Only
Displays the current FFWD temperature.
PID Output
Read Only
Displays the calculated PID output.
FFWD Output
Read Only
Displays the current FFWD output.
Min Load Adj
Numeric Entry
Adjusts the output by adding an offset to the breakpoint
chart at minimum flow. This is used to fine tune Feed-
Forward (FFWD) output at low flow levels. (-50 - +50°F)
Max Load Adj
Numeric Entry
Adjusts the output by changing the scaling of the
breakpoint chart at maximum flow. (-50 - +50°F)
Outlet Feedback
Yes/No
Enables Outlet Feedback functionality.
Feedback Gain
Numeric Entry
The percentage of feedback from the water outlet sensor
the algorithm factors to determine fire rate (0.01
– 1.00).
Fdback Start Pos
Numeric Entry
The Feedback start position (0
– 100%).
Fdback End Pos
Numeric Entry
The Feedback end position (0
– 100%).
Max Feedback
Numeric Entry
Specifies the maximum Feedback position (0
– 100%).
Fdback Value
Read Only
Displays the current feedback value.
Breakpt at 100 to
Breakpt at 0
Numeric Entry
Allows breakpoint temperature settings to be entered for
100% to 0% in 10% increments (60
– 260°F).
Temp Gov
Enable/Disable
Enables temperature governor limiting functionality, which
aggressively reduces the effective Fire Rate as the Outlet
Temperature approaches the High Temperature Limit.
