Innovation Hot Water Hot Water Boiler User Manual
- INTERNATIONAL
APPENDIX A – INNOVATION MENU ITEM DESCRIPTIONS
OMM-0120_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
131
of
174
GF-128-I
Phone: 800-526-0288
11/15/2016
Table A-4: Tuning Menu Item Descriptions
Table A-4:
TUNING MENU ITEM DESCRIPTIONS
See section 3-7 for a range of choices and the default values.
MENU LEVEL & OPTION
DESCRIPTION
1
Prop Band
Generates a valve position based on the error that exists between
the setpoint temperature and the actual outlet temperature. If the
actual error is less than the proportional band setting (1 to 120°F,
-17.2 to 48.9 °C), the valve position will be less than 100%. If the
error is equal to or greater than the proportional band setting, the
valve position will be 8%.
2
Integral Gain
This sets the fraction of the output, due to setpoint error, to add or
subtract from the output each minute to move towards the
setpoint. Gain is adjustable from 0.00 to 10.00
3
Derivative Time
This value (0.0 to 20.0 min.) responds to the rate of change of the
setpoint error. This is the time that this action advances the
output.
Warmup
The feature embodied in the next three menu items eliminates
Temperature Overshoots during the “Warmup” period of a cold
ignition cycle on all boilers by temporarily modifying the PID Gain
parameter during warmup and for a period defined in the Tuning
Menu.
4
Warmup Prop Band
Range = 1 – 120°F (-17.9°C to 48.9°C)
Default = 95°F (35°C)
5
Warmup Int Gain
Range = 0.00 – 2.00
Default = 0.50
6
Warmup PID Timer
Range = 0 - 240 seconds
Default = 20 seconds
7
Min Load Adj
Setting is adjustable from -50°F to +50°F. It 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.
8
Max Load Adj
Setting is adjustable from -50°F to +50°F (-45.5 to +10 °C). It
adjusts the output by changing the scaling of the breakpoint chart
at maximum flow.
9
FFWD Temp
Displays the Feed-Forward temperature.
10
Outlet Feedback
Used to Enable or Disable feedback. Disable this function for
Feed-Forward control only.
11
Feedback Gain
Adjustable from 0.01 to 1.00 (See NOTE below)
12
Thru
22
Breakpoint at 100%
Thru
Breakpoint at 0%
Allows breakpoint temperature settings 30°F to 240°F (4.4°C to
115.6°C), to be entered for 100% to 0% in 10% increments.
