Heating Appliance Operating Mode/Burner Status - Wolf CGS-2-14/120L Installation Instructions Manual

Heating appliance operating mode
Display shows
Start
Standby
Combi mode
Heating mode
DHW mode
Emissions test
Frost prot htg
Frost prot DHW
Frost prot.
Min. combi time
Heating run-on
DHW run-on
Parallel mode
Test
Cascade
BMS
100 % cali
External disable
Heating appliance burner status
Display shows
OFF
Pre-flush
Ignition
Stabilisation
Soft start
ON
Cycle block
Bob
Fl. gas damper
Spread high
Spread KF
Valve test
Grad. control
Fault
Post-flush
38
21. Heating appliance operating mode/
burner status
Meaning
Appliance start
No heating or DHW demand
DHW heating with heat exchanger active, water tap is open
Heating mode, at least one heating circuit demands heat
DHW heating with cylinder, cylinder temperature is below set value
Emissions test mode active, heating appliance running at maximum output
Heat generator frost protection function, boiler water temperature below frost
protection limit
Frost protection function of DHW cylinder enabled; cylinder temperature below frost
protection limit
System frost protection enabled; outside temperature below frost protection limit
Appliance remains in DHW mode (heat exchanger) for a minimum amount of time
Heating circuit pump run-on enabled
Cylinder primary pump run-on enabled
Heating circuit pump and cylinder primary pump enabled in parallel
Relay test function has been enabled
Cascade module in system enabled
Appliance is controlled by building management system (BMS)
Appliance is calibrating the flue gas system
External disabling of the heating appliance (input E1 closed; OWHA)
Meaning
No burner demand
Fan operation before burner start
Gas valves and ignition unit are enabled
Flame stabilisation after safety time
After flame stabilisation in heating mode, the burner runs at low burner power for
the duration of the soft start to prevent cycling
Burner operational
Burner block after a burner cycle for the duration of the cycle block
Operation without burner, input E1 closed
Awaiting feedback from flue gas damper (input E1)
Temperature spread between boiler water temperature sensor and return
temperature sensor too wide
Temperature spread between eHLSC1/eHLSC2 and boiler sensor too wide
Gas valve test
Boiler water temperature rising too quickly
Burner not operational due to a fault
Fan operation after burner shutdown
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