Wolf COB - Page 32

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3062547_201802
MaximumDHWtemperature
ParameterA14
65
Factory setting: 65°C
Setting range: 60 to 80 °C
A14
At the factory, the maximum DHW temperature is set to 65°C. This temperature can
be enabled at 80 °C, if for commercial reasons a higher DHW temperature is required.
If pasteurisation has been activated (BM), the DHW cylinder will be heated to the selected
maximum DHW temperature during the rst cylinder heating of the day.
Takeadequatemeasurestopreventscalding.
ParameterHG22(maximumboilerwatertemperature)shouldbesetat
least5KhigherthantheselectedmaximumDHWtemperature.
InconjunctionwiththeTSstraticationcylinder,DHWtemperaturesof
over60°Carenotpermitted,sincethisleadstoacceleratedscalingin
theDHWheatexchanger.
To save energy and protect against scaling if the total hardness is
greaterthan15°dH(2.5mol/m³),theDHWtemperaturemaybesetto
amaximumof50°C.
 Ifthetotalhardnessisgreaterthan20°dH(3.58mol/m³),werecommend
usingawatertreatmentfacilityinthecoldwatersupplylineforDHW
heating, to prolong the maintenance interval (descaling DHW heat
exchanger).
Note
23 Contractorlevelparameters
The burner switching differential regulates the burner temperature within a set range
by switching the burner ON and OFF.
The switching differential between burner stage 1 and burner stage 2 is always half the
switching differential.
See also the parameter HG31 diagram.
Burnerswitchingdifferential
ParametersHG01
HG01
10
Factory setting: 10K
Setting range: 5 to 20K
This parameter shifts the minimum and maximum fan speed parallel downwards or
upwards.
This enables the CO
2
value for burner stages 1 and 2 to be adjusted at the same time.
See also the chapter “CO
2
adjustment by matching the pipe lengths"
One unit = 120 r.p.m
Setting 3 = set value, burner control unit
Tubetrimming
ParameterHG00
HG 00
3
Factory setting: 3
Setting range: 1 to 5