Watts AERCO Benchmark BMK 1500DF User Manual page 80

Natural gas, propane gas, or dual fuel fired modulating, condensing boilers
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Benchmark 750-3000 Operation, Service & Maintenance Guide-Latin America
APPENDIX A: BOILER MENU DESCRIPTIONS
TABLE A-6: CALIBRATION Menu Item Descriptions
MENU OPTION
Supply Gas Pressure
26
In Adj
27
Gas Plate dp In Adj
28
mA Out Adj
A/F Sensitivity
29
Power Reset
30
Water Temp Reset
31
Gas Press Reset
32
Min Off Time
33
34
Stop Level
35
Start Level
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.
36
– Skip Range CNTR
37
– Skip Range Span
38
– Skip Speed
O2 Settings:
Items 39 – 41 allow calibration of oxygen readings.
– O2 Gain
39
– O2 Offset
40
41
– O2 Sensor
Cal Temp Sensors
42
Temperature Channel Offset:
Items 45 – 48 embody the feature, which allow the user to field calibrate all six temperature channels by
entering an offset corresponding to the desired temperature channel.
– FFWD Temp Offset
45
– Exhst Tmp Ofset
44
45
– Outdr Air Offset
46
– Inlet Air Offset
Page 80 of 162
01/02/2018
Allows adjustment of the Supply Gas Pressure level from
-5.0% to +5.0% in 0.1 % increments.
Allows adjustment of the Gas Plate dp level from -5.0% to +5.0% in 0.1%
increments.
Allows adjustment of the milliamp output from -5.0 mA to +5.0 mA.
Allows adjustment of the Air/Fuel (A/F) Valve stepper motor sensitivity to be
adjusted from 1% to 5% in 1% increments.
Allows the Power Reset Option to be set to AUTO or MANUAL.
Allows the Water Temperature Reset function to be set to AUTO or
MANUAL.
Allows the Gas Pressure Reset function to be set to AUTO or MANUAL.
Allows the minimum Off time to be set from 0 to 10 minutes.
Allows the Stop Level to be set to a valve position ranging from 0% to the
presently set 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%.
Defines the Center (Fire Rate) of the skip band.
Defines the + and – band of the Skip Zone Size.
Defines the speed (Seconds/Fire Rate) at which the band will be skipped.
Range = 0.5 to 1.5. (Unity Gain, No Mods)
Range = -3.0 to +3.0.
Enables the O2 Sensor
Allows calibration of the temperature sensor
Range: -20 to + 20 (either ºF or °C)
Range: -20 to + 20 (either ºF or °C)
Range: -20 to + 20 (either ºF or °C)
Range: -20 to + 20 (either ºF or °C)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Ph.: 800-526-0288
DESCRIPTION
OMM-0132_A
GF-206-LA-LA

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