ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...

Installation Guide ECL Comfort 210 / 310, application A275 / A375
5.5 Boiler
Difference 11046
Circuit Setting range Factory setting
1 (OFF /) 1 ... 50 K 8 K
The burner is switched ON and OFF to maintain the desired boiler
temperature. Set the difference between the cut-in and cut-out temperature.
OFF: (Only in A275 applications):
The boiler temperature difference is set
automatically according to the momentary load of
the boiler and the temperature conditions in the
heating system.
1 ... 50 K: The boiler temperature difference is set to a
fixed value according to the boiler manufacturer
specification.
Max. T limit 11049
Circuit Setting range Factory setting
1 40 ... 150 °C 90 °C
A275 applications:
If the boiler / flow temperature exceeds the set value, the burner is cut-out.
A375 applications:
If the boiler / flow temperature exceeds the set value, burner steps are
cut-out in intervals of 5 sec.
40 ... 150: Set the limitation temperature.
Min. ON time 11071
Circuit Setting range Factory setting
1 0 ... 9 m 0 m
Set the minimum operation time (minutes) for the burner.
1 ... 9 m: The boiler can be protected against condensation /
corrosion caused by insufficient heat-up time at each
burner start. The protection is obtained by a minimum
operation time of the burner. With this setting the boiler
temperature difference (ID no. 11046 ‘Difference’) is
overruled.
Temp.
ON OFF
Actual boiler / flow
temp.
Difference
Desired boiler / flow
temp.
Time
The boiler temperature difference is symmetrical around the desired
boiler temperature, i.e. half the value is above and half the value is
below this temperature.
'Max. T limit' overrules 'Min. ON time'.
'Min. ON time' is overruled by 'Max. T limit'.
114 DEN-SMT/DK VI.GU.L1.02 Danfoss District Energy