Appendix A: Boiler Menu Item Descriptions - Watts AERCO Benchmark OMM-0121 Operation And Maintenance Manual

Benchmark 750-3000 Boiler Operation & Maintenance Manual
APPENDIX A: BOILER MENU DESCRIPTIONS

Appendix A: BOILER MENU ITEM DESCRIPTIONS

TABLE A-1: OPERATING MENU ITEM DESCRIPTIONS
See section 2-4 OPERATING Menu for a range of choices and the default values.
TABLE A-1: OPERATING Menu Item Descriptions
MENU OPTIONS
1 Active Setpoint
2 Outlet Temp
3 Inlet Temp
4 Air Temp
5 Outdoor Temp
6 Valve Position In
7
Valve Position Out
8 FFWD Temp
9 Exhaust Temp
10 Flame Strength
11 Min Flame Str
12
O2 Monitor
13 Oxygen Level
14 Ignition Time
15 SSOV Time to OPN
16
Spark Current
17 Run Cycles
18
Run Hours
19 Fault Log
OMM-0122_D • GF-206 • 5/9/2019
This is the setpoint temperature to which the control is set
when operating in the Constant Setpoint, Remote Setpoint or
Outdoor Reset Mode. When in the Constant Setpoint Mode,
this value is equal to the Internal Setpoint setting in the
Configuration Menu. When in the Remote Setpoint Mode, this
value is the setpoint equivalent to the remote analog signal
supplied to the unit. When in the Outdoor Reset Mode, this is
the derived value from the charts in Appendix E.
Displays the outlet water temperature.
Displays the inlet water temperature.
Air Temp is the air temperature at the input to the Air/Fuel
Valve. This reading is one of the parameters used to control
the Blower Motor speed.
Outdoor temperature is displayed in ºF or ºC, only if outdoor
temperature sensor is installed and enabled.
Desired input valve position. This would normally be the same
as the fire valve position shown on the bar graph (valve
position out) when the boiler is operating.
Displays actual real time Valve Position.
Displays BST header temperature
Displays the exhaust temperature in °F (default) or ºC.
Displays flame strength from 0% to 100%.
Not Used
Enables or disables the O2 Monitor.
Displays the real-time combustion oxygen (O
measured by the O sensor.
2
Displays the elapsed time between confirmation of gas valve
opening (POC) until a stable flame is detected.
Displays the elapsed time between 120VAC being applied to
the Gas Valve and confirmation of gas valve opening (POC).
Displays the current going to the ignition transformer.
Displays the total number of run cycles.
Displays total run time of unit in hours.
Displays information on the last 20 faults.
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DESCRIPTION
) level (%)
2
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