17
ENGLISH
MAIN
START END
SELECT
A DAY
THURSDAY
ZONE SCHEDULE
07:30 08:30
11:30 13:30
18:00 22:30
INSTALLATION
PARAMETERS
THERMOREGULATION
RANGE RATED
CALIBRATION
- Using the
“up”
and
“down”
keys select TIME SCHEDULE confirming
the selection
-
MENU
SETTINGS
TIME SCHEDULE
SELECT OPTION
From this menu it is possible to access the display and adjustment of the
programme timing for the heating functions of the zone. For each day of
the week it is possible to set up to 4 bands, with a start time and end time.
Note:
for more details for the use of the programme timing see the USER
MANUAL section.
MON
SCHEDULE
18/11/2013
12:17
MAIN
SELECT THE ZONE
5.2.4 Setting up thermoregulation
(Weather compensation)
Thermoregulation only works with an outdoor temperature sensor is
connected and is active only for the HEATING function; - connect the
outdoor temperature sensor to the specific connections on the boiler
terminal board.
This enables use of the THERMOREGULATION function.
The temperature measured by the outdoor temperature sensor is displayed
on screen in the top right, alternating with the display of the time. When
thermoregulation is enabled the algorithm for automatically calculating the
outlet set point depends on the type of heat request.
In any case, the thermoregulation algorithm will not directly use the outdoor
temperature, but rather a calculated outdoor temperature that takes into
account the building’s insulation: in well insulated buildings, the outdoor
temperature variations will have less impact than those that are poorly
insulated.
Enabling THERMOREGULATION occurs in the following way:
- Access the technical parameters as explained in section “4.1 Access to
the technical parameters”
- Select THERMOREGULATION with the
“up”
and
“down”
keys,
confirming the selection.
TECHNICAL
Then
Using the control it is possible to set values of the following parameters:
BUILDING TYPE
This is indicative of the frequency with which the value of the calculated
outdoor temperature for thermoregulation is updated, a low value for this
will be used for buildings with little insulation.
Setting range:
[5min - 20min]
Factory default:
[5min]
REACTIVITY EXT SENSOR
This is an indication of the speed with which variations of the measured
outdoor temperature affect the calculated outdoor temperature value for
thermoregulation, low values indicate high speeds.
Setting range:
[0 - 255]
Factory default:
[20]
To change the value of the above parameters proceed as described
- Access technical parameters as explained in the section “4.1 Access to
the technical parameters”
- In sequence select THERMOREGULATION and TYPE OF BUILDING
with the
“up”
and
“down”
keys, set & confirm the selection
Note:
The value of the calculated outdoor temperature used by the
thermoregulation algorithm is displayed in the INFO menu under TEXT
FOR THERMOREG.
HEAT REQUEST FROM THERMOSTAT or POR (Programmable Timer)
In this case the outlet set point depends on the outdoor temperature for
obtaining a reference ambient temperature of 20°C. There are 2 parameters
that compete to calculate the output set point:
- Slope of the compensation curve (KT)
- Offset on the reference ambient temperature.
SELECTING THE COMPENSATION CURVE- fig. 17
The compensation curve for heating maintains a theoretical temperature of
20°C indoors, when the outdoor temperature is b20°C and -20°C.
The choice of the curve depends on the minimum outdoor temperature
envisaged (and therefore on the geographical location), and on the delivery
temperature envisaged (and therefore on the type of system). It is carefully
calculated by the installer on the basis of the following formula:
KT = T. outlet envisaged – T shift
20- min. design external T
T shift = 30°C standard system
25°C floor installations
If the calculation produces an intermediate value between two curves, you
are advised to choose the compensation curve nearest the value obtained.
Example: if the value obtained from the calculation is 1.3, this is between
curve 1 and curve 1.5. Choose the nearest curve, i.e. 1.5.
The settable KT values are as follows
:
Standard system: 1.0-3.0
Floor system 0.2-0.8.
Using the screen it is possible to set the selected thermoregulation curve:
- Access technical parameters as explained in the section “4.1 Access to
technical parameters”
- In sequence select THERMOREGULATION and then CLIMATIC CURVES
- Select the desired heating zone with the
“up”
and
“down”
keys,
confirming the selection
- Set the desired climatic curve with the
“up”
and
“down”
keys, confirming
the selection.
-
OFFSET ON THE REFERENCE AMBIENT TEMPERATURE - fig. 17
In any event, user action can indirectly modify the value of the HEATING
set point inserting an offset on the reference temperature that can vary
within the range -5-+5 (offset 0 = 20°C).
NIGHT COMPENSATION - fig. 17
Whenever a programmable timer is connected to the ROOM THERMOSTAT
input, from the TECHNICAL\THERMOREGULATION\CLIMATIC CURVES\
MAIN the NIGHT COMPENSATION function can be enabled.
In this case, when the CONTACT is CLOSED, the heat request is made
by the flow sensor, on the basis of the outdoor temperature, to obtain a
nominal ambient temperature on DAY level (20°C).
Opening of the contact does not produce a switch-off, but a reduction
(parallel translation) of the climatic curve on NIGHT level (16°C).
in this case, the user can indirectly modify the value of the HEATING set
point inserting once again an offset on the reference DAY temperature
(20°C) rather than NIGHT (16°C) that can vary within the range [-5 - +5].
5.3
First commissioning ; See Over
INSTALLER
Summary of Contents for EXCLUSIVE 25C
Page 43: ......
