Jens Kaufmann
2025-01-26 13:31:57
- #1
Good day.
Could someone please take a look at this? Our heating system (Wolf CGB 2-14) is only short cycling and consuming an extremely high amount of gas.
House data:
Old building 1972
Double glazed windows 15 years old
Relatively poorly insulated
160m2 living space
Basement (unheated)
Brief history:
I adjusted several settings in the expert area but was still dissatisfied. I reset the parameters and since then the circulation pump stopped working. Then I briefly set "HG40 system configuration" to "K12_Weiche/PWT + HK". This caused the pump to start again. I then immediately set it back to "K01_Heizkreis". I went back to the main menu and the heating system restarted. Since then it has been working again but is short cycling badly. Additionally, several new settings appeared, e.g. "HG14 Funktion A1 or A17, A18".
Currently it is about 500 liters (almost 500€) per month (possibly a gas leak in the underground pipe?), only for the ground floor (room temperature 20°C, 90m²). On the upper floor (room temperature 10°C, 70m²) the heating thermostats are set to 1 because renovation is still ongoing there.
There is only one hot water charging (40°C) per day. (Once the gas consumption issue is resolved, we will activate the legionella mode)
Data:
Wolf CGB 2-14
• Expert heating device
HG01 Burner hysteresis 12.0 °C
HG02 Minimum burner output 20 %
HG03 Maximum burner output hot water 70%
HG04 Maximum burner output heating 60%
HG07 Post run time heating circuit pump 1 min
HG08/KM04 Maximum flow temperature 90.0 °C
HG09 Burner short cycling lock in heating mode 7 min
HG10 eBus address 1
HG12 Gas type LPG
HG13 Function input E1 No function
HG14 Function A1 heating circuit pump (????)
HG15/MI20 Storage hysteresis 5.0 °C
HG16 Pump output heating circuit minimum 15%
HG17 Pump output heating circuit maximum 80%
HG19/MI13 Post run time storage loading pump 3 min
HG20 Maximum storage loading time 120 min
HG21 Boiler minimum temperature TK-min 20.0 °C
HG22 Boiler maximum temperature TK-max 90.0 °C
HG23 Domestic hot water maximum temperature 65°C
HG25/M17 Boiler over-temperature at storage charging 15.0 °C
HG33 Hysteresis time 10 min
HG34 eBus feed-in Auto
HG37 Type pump control Linear
HG38 Target spread dT pump control 20.0 °C
HG39 Soft start time 3 min
HG40 System configuration K01_Heizkreis
HG41 Pump output hot water 65 %
HG42 Hysteresis collector 15.0 °C
HG43 Reduction IO basis 0
HG44 Offset GPV characteristic 30%
HG45 Flue gas length adjustment 2.5%
HG60 Minimum switching hysteresis burner 7°C
HG61 DHW control boiler
• Expert system
Function BM2: System
A00 Room influence factor 4
A04 Outside sensor averaged 3
A05 RF adjustment 0.0°C
A07 Anti-legionella function OFF
A08 Maintenance message OFF
A09 Frost protection limit 2.0°C
A10 Parallel operation release OFF
A11 Room shutdown ON
A12 Reduction stop -10°C
A13 Domestic hot water minimum temperature 40.0°C
A14 Domestic hot water maximum temperature 65.0°C
A15 Correction AT 0.0
A16 Pure room control OFF
A17 P component 20 K/K
A18 I component 1.0 K/(K*h)
A23 Start time ALF 18:00
A24 Assignment PWS: Joint
A26 Smartphone release: ON
• Expert heating curve:
Base temperature 20.0°C
Start point heating curve 20.0°C
Normal outside temperature -14°C
Flow temperature 90°C
• Display
HG43 0
IO-Valley 32768
Ignition time ---.- s
• Heating circuit display direct
Heating circuit automatic operation request
Heating circuit status heating operation
Flow: target=30.8°C actual: 33.7°C
Heating circuit pump ON
Outside 9.8°C
• Heating device display
Boiler temperature target=30.7°C actual: 29.8°C
Return temperature 27.4°C
Pressure 1.83
Domestic hot water temperature target=10°C actual=41.5°C
Input E1 open
Current device power 41%
Pump speed 55%
Flue gas temperature 31.0°C
Ionization 68
Fan speed 3420 rpm
Number of burner starts 34321
Burner operating hours 7308 hrs
Grid operating hours 18583 hrs
Number of grid on 26
ZHP ON
LP OFF
A1 ON
3WUV HZ
FA ON
Software version 2.20
• Basic settings heating circuit
Saving factor 4.0
Winter-summer switch 20°C
ECO ABS 10°C
Best regards, Jens
Could someone please take a look at this? Our heating system (Wolf CGB 2-14) is only short cycling and consuming an extremely high amount of gas.
House data:
Old building 1972
Double glazed windows 15 years old
Relatively poorly insulated
160m2 living space
Basement (unheated)
Brief history:
I adjusted several settings in the expert area but was still dissatisfied. I reset the parameters and since then the circulation pump stopped working. Then I briefly set "HG40 system configuration" to "K12_Weiche/PWT + HK". This caused the pump to start again. I then immediately set it back to "K01_Heizkreis". I went back to the main menu and the heating system restarted. Since then it has been working again but is short cycling badly. Additionally, several new settings appeared, e.g. "HG14 Funktion A1 or A17, A18".
Currently it is about 500 liters (almost 500€) per month (possibly a gas leak in the underground pipe?), only for the ground floor (room temperature 20°C, 90m²). On the upper floor (room temperature 10°C, 70m²) the heating thermostats are set to 1 because renovation is still ongoing there.
There is only one hot water charging (40°C) per day. (Once the gas consumption issue is resolved, we will activate the legionella mode)
Data:
Wolf CGB 2-14
• Expert heating device
HG01 Burner hysteresis 12.0 °C
HG02 Minimum burner output 20 %
HG03 Maximum burner output hot water 70%
HG04 Maximum burner output heating 60%
HG07 Post run time heating circuit pump 1 min
HG08/KM04 Maximum flow temperature 90.0 °C
HG09 Burner short cycling lock in heating mode 7 min
HG10 eBus address 1
HG12 Gas type LPG
HG13 Function input E1 No function
HG14 Function A1 heating circuit pump (????)
HG15/MI20 Storage hysteresis 5.0 °C
HG16 Pump output heating circuit minimum 15%
HG17 Pump output heating circuit maximum 80%
HG19/MI13 Post run time storage loading pump 3 min
HG20 Maximum storage loading time 120 min
HG21 Boiler minimum temperature TK-min 20.0 °C
HG22 Boiler maximum temperature TK-max 90.0 °C
HG23 Domestic hot water maximum temperature 65°C
HG25/M17 Boiler over-temperature at storage charging 15.0 °C
HG33 Hysteresis time 10 min
HG34 eBus feed-in Auto
HG37 Type pump control Linear
HG38 Target spread dT pump control 20.0 °C
HG39 Soft start time 3 min
HG40 System configuration K01_Heizkreis
HG41 Pump output hot water 65 %
HG42 Hysteresis collector 15.0 °C
HG43 Reduction IO basis 0
HG44 Offset GPV characteristic 30%
HG45 Flue gas length adjustment 2.5%
HG60 Minimum switching hysteresis burner 7°C
HG61 DHW control boiler
• Expert system
Function BM2: System
A00 Room influence factor 4
A04 Outside sensor averaged 3
A05 RF adjustment 0.0°C
A07 Anti-legionella function OFF
A08 Maintenance message OFF
A09 Frost protection limit 2.0°C
A10 Parallel operation release OFF
A11 Room shutdown ON
A12 Reduction stop -10°C
A13 Domestic hot water minimum temperature 40.0°C
A14 Domestic hot water maximum temperature 65.0°C
A15 Correction AT 0.0
A16 Pure room control OFF
A17 P component 20 K/K
A18 I component 1.0 K/(K*h)
A23 Start time ALF 18:00
A24 Assignment PWS: Joint
A26 Smartphone release: ON
• Expert heating curve:
Base temperature 20.0°C
Start point heating curve 20.0°C
Normal outside temperature -14°C
Flow temperature 90°C
• Display
HG43 0
IO-Valley 32768
Ignition time ---.- s
• Heating circuit display direct
Heating circuit automatic operation request
Heating circuit status heating operation
Flow: target=30.8°C actual: 33.7°C
Heating circuit pump ON
Outside 9.8°C
• Heating device display
Boiler temperature target=30.7°C actual: 29.8°C
Return temperature 27.4°C
Pressure 1.83
Domestic hot water temperature target=10°C actual=41.5°C
Input E1 open
Current device power 41%
Pump speed 55%
Flue gas temperature 31.0°C
Ionization 68
Fan speed 3420 rpm
Number of burner starts 34321
Burner operating hours 7308 hrs
Grid operating hours 18583 hrs
Number of grid on 26
ZHP ON
LP OFF
A1 ON
3WUV HZ
FA ON
Software version 2.20
• Basic settings heating circuit
Saving factor 4.0
Winter-summer switch 20°C
ECO ABS 10°C
Best regards, Jens