ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...
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<strong>Installation</strong> <strong>Guide</strong> <strong>ECL</strong> <strong>Comfort</strong> <strong>210</strong> / <strong>310</strong>, application <strong>A275</strong> / <strong>A375</strong><br />
Reaction, in band (<strong>A375</strong> applications) 11075<br />
Circuit Setting range Factory setting<br />
1 5 ... 6000 s 120 s<br />
The set time (in seconds) determines the burner cut-in / cut-out when the<br />
boiler / flow temperature is inside the ‘Band limit’ ID no. 11048.<br />
Three conditions must be met in order to cut-in / cut-out the next burner step:<br />
• the set time has elapsed after the latest burner cut-in / cut-out<br />
• the boiler / flow temperature is inside the band limit<br />
• the change in boiler / flow temperature has been less than 1 K / minute<br />
(the temperature gradient is less than 1 K / minute)<br />
5 ... 6000: Set the desired time.<br />
The illustration shows a typical situation where the actual boiler<br />
/ flow temperature is relatively close to the desired boiler / flow<br />
temperature, i.e. inside the band limit.<br />
Steps (<strong>A375</strong> applications) 11073<br />
Circuit Setting range Factory setting<br />
1 1 ... 8 1<br />
Number of burner steps to be controlled. See also ‘Sequence type’.<br />
1 ... 8: Set the number of burner steps.<br />
Temp.<br />
Temp.<br />
+<br />
+<br />
+ + +<br />
+<br />
Difference<br />
Desired boiler / flow<br />
temp.<br />
Band limit<br />
Actual boiler / flow<br />
temp.<br />
Time<br />
Actual boiler / flow<br />
temp.<br />
Band limit<br />
Desired boiler / flow<br />
temp.<br />
Difference<br />
118 DEN-SMT/DK VI.GU.L1.02 <strong>Danfoss</strong> District Energy<br />
Time