Wolf CGB-2 - HG Control Parameters and Settings; Control Parameter Modification Guidelines; System Protection and Icing Prevention

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17.HGcontrolparameters
ModicationsmustonlybecarriedoutbyarecognisedheatingcontractororbyWolfcustomerservice.
Incorrectoperationcanleadtosystemfaults.
OntheAMdisplaymoduleortheBM2programmingunit,thefactorysettingfortheHGparameterscanbe
reinstatedintheContractormenu.
Topreventdamagetotheheatingsystem,cancelnightsetbackwhenoutsidetemperaturesfallbelow-12°C.
Failuretoobservethisrequirementmayresultiniceformingontheueoutletwhichmaycauseinjuryor
materiallosses.
Please
note
Please
note
The control parameters can only be modied or displayed using the AM display module or BM-2 programming unit on the boiler.
For procedures, check the operating instructions of the relevant accessories.
No.: Designation: Unit Factory setting
Condensing boiler
Min: Max:
14 kW 20 kW 24 kW
HG01 Burner switching hysteresis °C 12 12 12 7 30
HG02 Lower burner output, heat generator in % (fan control) % 26 24 24
1)
100
HG03 Upper burner output, DHW (fan control)
Maximum burner output, DHW in %
% 100 100 100
1)
100
HG04 Upper burner output, heating (fan control)
Maximum burner output, heating in %
% 100 88 88
1)
100
HG07 Heating circuit pump run-on time
Heating circuit pump run-on time in heating mode
min 1 1 1 0 30
HG08 Max. boiler temp., heating (applies to heating mode) TV-max °C 80 80 80 40 90
HG09 Burner cycle block, applies to heating mode min 7 7 7 1 30
HG10 Heat generator eBUS address - 1 1 1 1 5
HG12 Gas type - Nat.
gas
Nat.
gas
Nat.
gas
Nat.
gas
LPG
HG13 Function, input E1
Various functions can be assigned to input E1.
- none none none var. var.
HG14 Function, output A1 (230 V AC)
Various functions can be assigned to output A1.
- none none none var. var.
HG15 Cylinder hysteresis, switching differential during cylinder reheating °C 5 5 5 1 30
HG16 HC Pump rate, minimum % 30 30 30 15 100
HG17 HC pump rate, maximum % 70 70 70 15 100
HG19 Run-on time, CLP (cylinder loading pump) min 3 3 3 1 10
HG20 Max. cylinder heating time min 120 120 120 30/Off 180
HG21 Minimum boiler temperature TK-min °C 20 20 20 20 90
HG22 Maximum boiler temperature TK-max °C 85 85 85 50 90
HG23 Maximum hot water temperature °C 65 65 65 50 90
HG25 Boiler excess temperature during cylinder heating °C 15 15 15 1 30
HG33 Burner hysteresis runtime min 10 10 10 1 30
HG34 eBUS feed - Auto Auto Auto OFF ON
HG37 Pump control type (constant/linear/dT) - Lin. Lin. Lin. var. var.
HG38 Set spread, pump control (dT) °C 15 15 15 0 40
HG39 Soft start time min 3 3 3 0 10
HG40 System conguration (see chapter "Parameter description") - 01 01 01 var. var.
HG41 ZHP speed DHW % 65 75 85 15 100
HG42 Hysteresis, header °C 5 5 5 0 20
HG43 IO reduction, default value - 0 0 0 -5 10
HG44 GPV curve offset % 29,6
3)
30,9
3)
30,9
3)
15 46.4
HG45 No function - - - - - -
HG46 Excess boiler temperature, header °C 6 6 6 0 20
HG60 Minimum burner switching hysteresis °C 7 7 7 2 30
HG61 DHW control unit (boiler sensor / header sensor) - Boiler
sensor
Boiler
sensor
Boiler
sensor
Various Various
1)
Minimum boiler output
2)
CGB-2-14 = 2.5 %
3)
Value is set automatically with GLV adaptation