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ADI CD boiler - Technical Manual
29
Switch on delay (3533)
Correct adjustment of the switch-on delay ensures that plant operating conditions will be stable. This prevents too
frequent switching actions of the boilers (cycling).
Auto source sequence changeover (3540)
With automatic changeover of the heat source sequence, the boiler loads in a cascaded system can be influenced by
defining the order of lead and lag boiler. On completion of the set number of operating hours, the boiler sequence in
the cascaded system changes. It is always the boiler with the next higher device address which assumes the role of
the lead boiler.
Leading source (3544)
The boiler selected as the lead boiler is always the first to be switched on, or the last to be switched off. The other
boilers are switched on and off in the order of their device addresses.
a) Three boilers cascade, heating and DHW circuit
12
34
11
10a
13
12
12
11
10a
13
11
10a
34
17
17
13
34
CASCADE COMMUNICATION BUS
SLAVES BOILERS CONTROL
MASTER BOILER CONTROL
Содержание ADI CD 375
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