Benchmark 750-3000 Boiler Operation, Service, Maintenance Guide - KOREA
APPENDIX A: BOILER MENU DESCRIPTIONS
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80
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AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0128_0B
07/17/2017
Ph.: 800-526-0288
TABLE A-6: CALIBRATION Menu Item Descriptions
MENU OPTION
DESCRIPTION
26
Supply Gas Pressure
In Adj
Allows adjustment of the Supply Gas Pressure level from
-5.0% to +5.0% in 0.1 % increments.
27
Gas Plate dp In Adj
Allows adjustment of the Gas Plate dp level from -5.0% to +5.0%
in 0.1% increments.
28
mA Out Adj
Allows adjustment of the milliamp output from -5.0 mA to +5.0
mA.
29
A/F Sensitivity
Allows adjustment of the Air/Fuel (A/F) Valve stepper motor
sensitivity to be adjusted from 1% to 5% in 1% increments.
30
Power Reset
Allows the Power Reset Option to be set to AUTO or MANUAL.
31
Water Temp Reset
Allows the Water Temperature Reset function to be set to AUTO
or MANUAL.
32
Gas Press Reset
Allows the Gas Pressure Reset function to be set to AUTO or
MANUAL.
33
Min Off Time
Allows the minimum Off time to be set from 0 to 10 minutes.
34
Heatr Tuning Dsp
Allows Heater Tuning Display to be Enabled or Disabled.
35
Heatr Bkpt Dsp
Allows Heater Breakpoint Display to be Enabled or Disabled.
When Enabled, Breakpoints can be viewed and/or changed.
36
Stop Level
Allows the Stop Level to be set to a valve position ranging from
0% to the presently set Start Level.
37
Start Level
Allows the Start Level to be set to a valve position ranging from
the presently set Stop Level to a maximum of 40%.
SKIP FEATURE:
Items 38 – 40 embody a feature that allows the user to define a Fire Zone the C-More will avoid.
In the rare instance when a unit emits an objectionable noise at a certain Fire Rate and no other
remedy solves the problem, a Fire Rate skip zone may be defined to command the C-More to
Skip-Over the defined Fire Rate.
38
– Skip Range CNTR
Defines the Center (Fire Rate) of the skip band.
39
– Skip Range Span
Defines the + and – band of the Skip Zone Size.
40
– Skip Speed
Defines the speed (Seconds/Fire Rate) at which the band will be
skipped.
O2 Settings
:
Items 41 – 43 allow calibration of oxygen readings.
41
– O2 Gain
Range = 0.5 to 1.5. (Unity Gain, No Mods)
42
– O2 Offset
Range = -3.0 to +3.0.
43
– O2 Sensor
Enables the O
2
Sensor
44
Cal Temp Sensors
Allows calibration of the temperature sensor
Temperature Channel Offset:
Items 45 – 50 embody the feature, which allow the user to field calibrate all six temperature
channels by entering an offset corresponding to the desired temperature channel.
45
– FFWD Temp Offset
Range: -20 to + 20 (either ºF or °C)
