Contractor Level Parameters - Wolf COB Technical Manual And Installation Instructions

Contractor level
Contractor
Code scan
code NO
- - - -
Factory setting: 1
Frost protection limit
Parameters A09
A09
2.0
Factory setting: 2°C
Setting range: -20 to +10 °C
DHW parallel mode
Parameter A10
A10
0
Factory setting: 0
Setting range: 0 / 1
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23 Contractor level parameters
Press r.h. rotary selector to, in the 2nd to change to the 2nd programming level. Turn
the r.h. rotary selector clockwise to select the contractor level and confirm the selection
by pressing the r.h. rotary selector again.
The display shows the code scan.
The correct code is set by pressing (display indication flashes) and then turning the r.h.
rotary selector from 0 to 1. After changing the code from 0 to 1, pressing the r.h. rotary
selector again confirms the setting; you are then at the contractor level.
The boiler circuit pump operates constantly if the outside temperature stays below the
selected value. The burner starts and heats the boiler to at least 20 °C if the boiler water
temperature falls below +5 °C.
The factory setting may only be changed if it is guaranteed that heating
Note
system and its components will not freeze at low external temperatures.
Incorrect operation can lead to system faults.
Note
Please note when adjusting parameter A09 (frost protection / outside
temperature), that frost protection is no longer safeguarded if you set
temperatures lower than 0 °C. This can lead to heating system damage.
The heating circuit pump is switched OFF during cylinder heating with DHW priority
(0). The boiler energy will then be used exclusively for DHW heating. The burner shuts
down and the heating circuit pump is started as soon as the cylinder has reached its
set temperature. The cylinder primary pump runs on, in summer operation and at most,
for the period selected under parameter HG19 (cylinder primary pump run-on time).
In winter mode, the cylinder loading pump runs on for a fixed time of 2 minutes after
successful cylinder heating.
The heating circuit pump continues to operate in parallel DHW mode (1) . Cylinder
heating ends when the cylinder reaches the set water temperature. The cylinder primary
pump runs on, in summer operation and at most, for the period selected under parameter
HG19 (cylinder primary pump run-on time).
In parallel DHW mode (1), the heating circuit can temporarily be operated
Note
at a higher temperature.
Parallel operation in conjunction with a stratification cylinder is not
recommended.
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