
3061809_1210
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Contractor level parameters
The control unit is equipped with a dynamic burner switching
differential to optimise the selected burner switching differential
at various boiler loads. This function corrects the selected burner
switching differential (parameter HG01) through load-dependent
burner runtimes. The burner switching differential is reduced to a
minimum value of 5 K, if the burner operating time increases up to the
selected hysteresis time. This makes the selected burner switching
differential effective at low boiler loads (rapid heat-up = short
burner runtime). This effectively prevents short burner runtimes
and cycling. With longer burner runtimes (high heat demand), the
switching differential will be reduced to 5 K. This prevents the boiler
being heated to unnecessarily high temperatures. This optimises
the energy consumption of the heating system.
This function prevents short burner runtimes and frequent cycling.
This protects the environment and minimises wear.
Hysteresis time
Parameter HG33
HG33
10
Factory setting: 10 min
Setting range: 1 to 30 min
Individual setting: ______
Ensure the return temperature is raised in heating systems with
a water content greater than 20 l/kW output. For boilers with a
pressure-jet oil burner or atmospheric gas burner, the minimum
return temperature is 30 °C, for boilers with pressure-jet gas
burner 40 °C.
Raising the return
temperature
Parameter HG32
HG32
30
Factory setting: 30
Setting range: 0 to 70 °C
Individual setting: ______
The optional boiler soft start protects the boiler against corrosion
that can occur when the boiler is heated from a cold state, i.e.
through condensate separation in the dew point range. The boiler
circuit pump will be switched OFF, if the boiler water temperature
falls 2 K below the set value TK-min. The pump will be enabled
when the boiler water temperature has exceeded the minimum
limit TK-min.
TK-min. cannot be achieved and the heating circuit and cylinder
primary pumps remain OFF, if the burner is blocked through
external safety circuits (e.g. flue gas thermostat on solid fuel
boilers).
Boiler soft start
Parameter HG26
HG26
1
Factory setting: 1
Setting range: 0 / 1
Individual setting: ______
Содержание R1
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