Adisa ADI CD 70 Technical Manual Of Installation, Use And Maintenance page 29

ADI CD boiler - Technical Manual
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
13 13
17 17
10a 10a 10a
34 34
11
12 12
13
34
11
12
MASTER BOILER CONTROL
SLAVES BOILERS CONTROL
CASCADE COMMUNICATION BUS
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