30
If the DHW cylinder is being heated in PV mode, the process will be completed when
it reaches 60°C. For CH, when the temperature resulting from the schedule or manual
setting is reached, the heating will continue to the temperature resulting from the Tr
offset
[Configuration > PV options > Tr offset]
. For example, for a comfort temperature
set at 22°C and Tr offset of 1°C, after reaching the setting, the heating will continue
with the power limit
[Configuration > Boiler rated power > PV limit]
. At 23°C, the heating
will be switched off or continued in normal mode with room temperature control off.
In buffer mode, the buffer tank will be charged off schedule with PV power set, in case
of heating request by schedule or heating circuits, the boiler will start heating with full
available power.
Cascade mode
In order to increase the power of the heating system, boilers can be combined into a
cascade.
A B
M
EKCO.M3
A B
S
EKCO.M3 in
EKCO.S3 mode
A B
S
EKCO.M3 in
EKCO.S3 mode
EKCO.M3 master boiler controls EKCO.M3 boilers set in slave operating mode EKCO.S3
(see position of switches in cascading mode - chapter Installation). In order to activate
the cascade mode, it is necessary to:
- set the configuration switches of master boiler to the EKCO.M3 position,
set configuration switches of slave boiler to the EKCO.S3 position,
- set individual identification numbers for each device
[Configuration> Communica
-
tion> Device number]
. If the same numbers are given, there will be irregularities in
communication, which will prevent proper operation,
- activate the cascade mode in the master boiler
[Configuration> Cascade> Yes]
,
- connect the communication bus according to the above drawing.
Note that cascade mode is not available in buffer working mode.
Summary of Contents for EKCO.M3
Page 35: ...PL 090B_f 35...
