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DMAN802000066-SY250 Idro 4/8 Buttons Manual
5.7
Modulation
PHASE Timer
Control Thermostats
Combustion
Resistance
Fan
Auger
T14
When combustion has reached final power, if:
Exhaust Temp<
Th03
thermostat
or
Exhaust Temp<
Extinguishing Thermostat
for the used power
starts Timer
T14
of
pre-extinguishing
U11
if
A06
=1
otherwise
U03
C11
if
A06
=1
otherwise
C03
OFF
T22
Room Temp.>
Room Thermostat
and
A01
=2
or
Buffer Temp.>
Buffer Thermostat Th58
and
P26
=4
or
Buffer Temp.>
Buffer Thermostat Th58
and
P26
=2, 3 and
Summer Modality
or
Room Temp.>
Remote Room Thermostat
and
A52
=2
or
Water Temp.> (
Boiler Thermostat
+
D23
) and
A13
=1 and
T43
=0
goes in Standby at
the end of
T22
timer
Exhaust Temp>
Th08
thermostat
or
Water Temp >
Th25
thermostat
goes in Safety
Water Temp.<
Boiler Thermostat
and
Exhaust Temp <
Th07
Thermostat
and
Room Temp.<
Room Thermostat
and
A01
=1
and
Room Temp.<
Remote Room Thermostat
and
A52
=1
goes in Run Mode
Control at the end of
T14
timer
Goes in Extinguishing with error
Er03
5.8
Standby
PHASE
Timer
Control Thermostat
Combustion
Resistance
Fan
Auger
Extinguishing
T13
Extinguishing of combustion
starts Timer
T13
P23
OFF
OFF
Final cleaning
T16
At the end of timer
T13
if Exhaust Temp <
T28
thermostat
starts Timer
T16
Max Speed
Wait
At the end of timer
T16
if the condition that brought
the system in Standby are not longer satisfied
starts Timer
T11
OFF
Every phase
Exhaust Temp>
Th08
thermostat
or
Water Temp >
Th25
thermostat
goes in Safety
If the condition that brought the system in Standby are not longer satisfied, it goes, at the end of
T11
timer, in Check Up:
from Wait phase if
A26
= 1
from
every phase if
A26
= 0
To reduce oscillations between state Standby
Ignition
Run Mode
Standby, adjust Room Thermostat Hysteresis and Boiler Thermostat Hysteresis.
Anyway Standby lasts at least 10 seconds.