Table A-4: Tuning Menu Item Descriptions - Aerco Benchmark BMK 750 User Manual

Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
APPENDIX A: BOILER MENU DESCRIPTION

TABLE A-4: Tuning Menu Item Descriptions

See Section 2-7 TUNING Menu for a range of choices and the default values.
TABLE A-4: TUNING Menu Item Descriptions
MENU OPTIONS
1
Prop Band
2
Integral Gain
3 Derivative Time
Warmup – The feature embodied in menu items 4, 5 and 6 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.
Warmup Prop
4
Band
Warmup Int Gain
5
Warmup PID
6
Timer
7 Reset Defaults?
OMM-0128_0C
GF-206-K
Generates a fire rate 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°F to 120°F, 0.55°C to 66°C), the fire rate will be less than
100%. If the error is equal to or greater than the
proportional band setting, the fire rate will be 100%.
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 1.00
(Default is 1.0).
This value (0.0 to 2.0 min.) responds to the rate of change
of the setpoint error. This is the time that this action
advances the output.
Range = 1 – 120°F (0.55°C to
66°C)
Range = 0.00 – 2.00
Range = 0 - 240 seconds
Allows Tuning menu options to be reset to their Factory
Default values.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
DESCRIPTION
Default = 95 (52°C)
Default = .50
Default = 20 seconds
Page 77 of 146
11/29/2017