40
37
WARNING!
Entering parameter P1, the control unit resets the
maximum temperatures (TM) recorded up to that moment.
By exiting this parameter, the control unit resets the
temperature display on probe S_1.
The display of the thermal data to be set contextual to
the selected scheme, i.e. the control unit displays only
the thermal data actually active for the hydraulic scheme
sele
cted
.
Legend of any thermal data to be set
:
PARAMET
E
R
S
DESCRI
PTION
TS1-TS2-TS3-TS4
Safety temperature on the probes
TS1-TS2-TS3-TS4
Safety temperature on the probes
ΔT
12
Differential between the probes
S1-S2
ΔT
13
Differential between the probes
S2-S3
ΔT
14
Differential between the probes
S1-S4
ΔT
34
Differential between the probes
e S3-S4
ΔT
42
Differential between the probes
S4-S2
ΔT
43
Differential between the probes
S4-S3
MTC
Temp setting minimum of collector
MTEN
Enabling / disabling limitation
minimum temperature
TM2
Max temperature on the probe
S2
TM3
Max temperature on the probe
S3
TM4
Max temperature on the probe
S4
TAH
Integration temperature on the probe
S3
MOD
How the integration works
TEC
Economy temperature on the probe
S3
HY12
Hysteresis of the
ΔT 12
HY13
Hysteresis of the
ΔT 13
HY14
Hysteresis of the
ΔT 14
HY34
Hysteresis of the
ΔT 34
HY42
Hysteresis of the
ΔT 42
HY43
Hysteresis of the
ΔT 43
HYT
Thermostats hysteresis
HYTS
Safety thermostats hysteresis
10.9 OPERATING LOGICS
ATTENTION: The following control logics must be applied
to all the diagrams illustrated below.
CONTROL LOGIC IN ABC
ABC
MANUAL
T/ABC
/
1 0
MANUALE
C
The control logic relating to the 'ABC' function commands
replaces the differential control.
The controls relating to the Maximum and Safety temperatures
are always active.
The supplementary source in ABC mode is switched off.
It will automatically re-arm when the above mode is deactivated.
SAFETY THERMOSTAT CONTROL LOGIC If an alarm occurs
due to the exceeding of a safety temperature, the alarm relay
will be activated, while the outputs relating to the loads continue
to operate according to the relative logics.
In these conditions the control unit will emit an acoustic signal
with an alarm beep and the display will light up in
the icon is flashing
“
”.
The control is not active with the control unit in the “OFF” state
(the display shows the word OFF).
Alarm relay activation condition
The operating logic of the alarm relay, always present on any
selected scheme, follows the conditions below: TX. ≥ TS. =
Alarm relay ON
TX. ≤ (TS. - Hysteresis) = Rel Alarm OFF
Where is it:
TX .: Temperature detected by the connected probes (S1 .. S4).
TS .: Safety temperature relative to the probes (S1 .. S4).
ALARM RELAY
OFF
HYS
TERESI
S
TX
≥
TS
ALARM RELAY
ON
°C
Control logic
TS
T
1
S 3
TS
T
2
S 4
RELE' ALR
RELÈ ALR
Alarm relay activation condition
SELECTABLE DIAGRAMS
Scheme 3
Solar pool heating system.
Control logic
Scheme 4
Solar heating system with 1 tank, direct
integration via valve logic.
Control logic