Table of Contents
Advertisement
The OPENING OF THE CONTACT does not produce a switch-
off, but a reduction (parallel translation) of the climatic
curve on NIGHT level (16°C).
PARALLEL NIGHT TIME REDUCTION
90
80
70
DAY TEMPERATURE CURVE
60
50
40
30
20
10
20
15
10
External temperature (°C)
In this case too, the user can indirectly modify the
HEATING setpoint value by inserting an offset on the
reference DAY temperature (20°C) or NIGHT temperature
(16°C). This offset may vary from [-5 to +5].
To correct the offset, refer to paragraph "3.8 Adjusting
the heating water temperature with an outdoor temper-
ature sensor connected".
3.4
Auto season change Winter - Summer
The system provides the possibility of making an automatic sea-
son change (from WINTER to SUMMER or vice versa) through the
use of the parameter P1.07 SEASON AUTO-CHANGE.
If the parameter is active (P1.07=1) and the external probe is con-
nected, the change of season occurs automatically. The external
probe value used is the filtered one (I010). If P1.07=1, the settable
parameters P1.08 and P1.09 determine at which temperature
thresholds the transition, summer - winter or vice versa, occurs.
9
Pay attention to the programming thresholds of parameters
P1.08 - P1.09 and the positioning of the external probe, to
avoid unwanted seasonal changes.
When the boiler is connected in a system with MSC/REC12 the
parameters set on the REC12 prevail.
However, it is possible to set the boiler manually in OFF mode,
in this condition the SEASON AUTO-CHANGE function is excluded.
Initial start-up
3.5
ƒ When the power is switched on, the backlight is il-
luminated, all the icons and segments light up for 1
second, and the firmware version is visualised for 3
seconds:
The interface then shows the status active in that mo-
ment.
Venting cycle
9
Every time the boiler is powered, the automatic
venting cycle (lasting 6 min) is run. When the vent-
ing cycle is in progress, all heat requests are inhib-
ited (apart from DHW requests when the boiler is
not OFF) and the sliding message -AIR appears on
the interface screen.
NIGHT TEMPERATURE CURVE
5
0
-5
-10
-15
The venting cycle can be interrupted by pressing and
holding button 2 (the RESET icon lights up on the dis-
play). The cycle can also be interrupted by a DHW re-
quest, if the boiler is not OFF.
ƒ Adjust the room thermostat to the required tempera-
ture (~ 20°C) or, if the system is equipped with a timed
thermostat or timer, make sure it is "active" and ad-
justed (~ 20°C).
ƒ Now set the boiler on WINTER or SUMMER, depending
on the type of operation required.
ƒ The boiler will start up and then continue working
until the set temperatures are reached, after which it
will go back to standby.
3.6
Operating status
To change the operating status from WINTER to SUMMER
and then to OFF, press button 1 until the relative icon
appears on the display.
-20
WINTER MODE
ƒ Bring the boiler to WINTER mode by pressing button 1
until both the DHW icon and the heating icon appear
on the display.
The interface normally displays the delivery temperature
unless there is a DHW request in progress, in which case
the DHW temperature is displayed.
ƒ When there is a heat request and the boiler is ignit-
ing, the
icon appears on the display.
Heating REQUEST: the radiator icon flashes
SUMMER MODE (only with a storage tank connected)
ƒ Bring the boiler to SUMMER mode by pressing button 1
until the DHW icon appears on the display.
ƒ In this status, the boiler activates the traditional
"DHW-only" function and the interface usually shows
the delivery temperature. In the case of DHW supply,
the display will show the DHW temperature.
DHW REQUEST: the tap icon flashes
35
COMMISSIONING
Bar
DAY
Advertisement
Table of Contents
