Wolf FGB-K Series Installation And Maintenance Instructions For Contractors page 37

Parameter H17
HC pump rate, maximum
Factory setting: see table
Setting range: 15 to 100 %
Individual setting:_____
Parameter H19
Run-on time, CLP
(cylinder loading pump)
Factory setting: see table
Setting range: 1 to 10 min
Individual setting:_____
Parameter H21
Minimum boiler temperature TK-min
Factory setting: see table
Setting range: 20 to 90 °C
Individual setting:_____
Parameter H23
Maximum DHW temperature
Factory setting: see table
Setting range: 60 to 80 °C
Individual setting:_____
Parameter H25
Excess boiler temperature
for cylinder heating
Factory setting: see table
Setting range: 1 to 30 °C
Individual setting:_____
Parameter H34
eBUS feed
Factory setting: see table
Setting range: OFF(0) to ON(1)
Individual setting:_____
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17. Parameter description
In heating mode, the internal appliance pump does not regulate above this set value.
With pump control type "constant", H17 is used as the set value for the pump speed
in heating mode.
After cylinder heating has ended (the cylinder has reached the set temperature), the
cylinder loading pump runs on for the set run-on time.
(Parameter is only shown if H51 = 1, 2, 3)
The control unit is equipped with an electronic boiler thermostat, which has an
adjustable minimum start temperature. If this temperature is undershot during a heat
demand, the burner is started under observance of the anti-cycle block. If there is no
heat demand, the minimum boiler water temperature TK-min. may be undershot.
The maximum DHW temperature is the upper limit to which the DHW set temperature
can be set using DHW button + (1).
Please note: Take adequate measures to prevent scalding.
Parameter H25 serves to select the excess temperature differential between the cylin-
der temperature and the boiler water temperature during cylinder heating.This ensures
that, even in spring and autumn, the boiler water temperature is higher than the cylin-
der temperature, thereby ensuring short heating times.
The eBUS feed is enabled in the factory setting (1). If in a cascade system, the eBUS
address is set greater than 1 with parameter H10, the eBUS feed is automatically disa-
bled (0) in parameter H34 for these appliances.
When wanting to connect several consumers to the eBUS, causing the eBUS current
to be insufficient, additional eBUS feeds can be enabled with parameter H34.
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