Wolf CGB-2-24 - Operating Mode;Boiler Burner Status

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21.Operatingmode/Boilerburner
status
Boileroperatingmode
Displayshows Meaning
Start Appliance starting
Standby No heating or DHW demand
Combi mode DHW heating with heat exchanger active, water tap is open
Heating mode Heating mode, at least one heating circuit demands heat
DHW mode DHW heating with cylinder, cylinder temperature is below set value
Emissions test Emissions test mode active, boiler running at maximum output
Frost HC Boiler frost protection function, boiler water temperature below frost protection limit
Frost DHW Frost protection function of DHW cylinder enabled;, cylinder temperature below
frost protection limit
Frost protection System frost protection enabled; outside temperature below frost protection limit
Min. combi time Appliance remains in DHW mode (heat exchanger) for a minimum amount of time
Htg run-on Heating circuit pump run-on enabled
DHW run-on Cylinder primary pump run-on enabled
Parallel mode Heating circuit pump and cylinder primary pump enabled in parallel
Test Relay test function has been enabled
Cascade Cascade module in system enabled
BMS Appliance is controlled by building management system (BMS)
100 % cali Applianceiscalibratingtheuegassystem
External disable External disabling of the heating appliance (input E1 closed; OWHA)
Boilerburnerstatus
Displayshows Meaning
OFF No burner demand
Pre-ush Fan operation before burner start
Ignition Gas valves and ignition unit are enabled
Stabilisation Flame stabilisation after safety time
Soft start Afteramestabilisationinheatingmode,theburnerrunsatlowburnerpowerfor
the duration of the soft start to prevent cycling
ON Burner operational
Cycle block Burner block after a burner cycle for the duration of the cycle block
Unattended op. Operation without burner, input E1 closed
Fl. gas damper Awaitingfeedbackfromuegasdamper(inputE1)
Spread too wide Temperature spread between boiler water temperature sensor and return
temperature sensor too wide
Spread KF Temperature spread between eHLSC1/eHLSC2 and boiler temperature sensor too
wide
Valve test Gas valve test
Ramp control Boiler water temperature rising too quickly
Fault Burner not operational due to a fault
Post-ush Fan operation after burner shutdown