Wolf COB Technical Manual And Installation Instructions page 32

Maximum DHW temperature
Parameter A14
A14
65
Factory setting: 65°C
Setting range: 60 to 80 °C
Tube trimming
Parameter HG00
HG 00
3
Factory setting: 3
Setting range: 1 to 5
Burner switching differential
Parameters HG01
HG01
10
Factory setting: 10K
Setting range: 5 to 20K
32
23 Contractor level parameters
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 first 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 stratification 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
Note
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).
This parameter shifts the minimum and maximum fan speed parallel downwards or
upwards.
This enables the CO value for burner stages 1 and 2 to be adjusted at the same time.
2
See also the chapter "CO
2
One unit = 120 r.p.m
Setting 3 = set value, burner control unit
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.
adjustment by matching the pipe lengths"
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