Danfoss ECL Comfort 210 Installation Manual page 36

Installation Guide
A375.1, example e
Two boilers with 2 x burner ON / OFF control for a heating circuit.
S 1
B2
B1
* = pressure relief valve
Fixed sequence for each boiler: Burner 1 (3) must be switched ON before burner 2 (4) can be switched ON.
Rotating sequence for the boilers: Boiler 1 is active before boiler 2. Next day boiler 2 is active before boiler 1.
Burner steps are activated according to heat demand.
The last burner step can be disabled if the outdoor temperaure is higher than a set value.
Special settings for type A375.1, example e:
Navigation:
Heating circuit (circuit 1)
Sequence type (code) for controlling the burners:
MENU \ Settings \ Boiler: 'Sequence type'
Number of total burner steps:
MENU \ Settings \ Boiler: 'Steps'
36 DEN-SMT/DK
ECL Comfort 210 / 310, application A275 / A375
S 3
B4
B3
S 5
ECL 310
A1
P 1
VI.GU.L1.02
S 7
ID no.:
Recommended setting:
4
11072
11073 4
Danfoss District Energy