51
BOILER
OFF
HEATING AND HOT WATER
HOT WATER ONLY
OFF
HOT WATER ONLY
HEATING AND HOT WATER
BOILER
11.12
Adjusting the heating water temperature
without an outdoor temperature sensor
connected
When there is no outdoor temperature sensor, the boiler
operates at a fixed setpoint, the HEATING setpoint can be
set selecting SET on the main screen of the front control
and selecting the desired value within the range [68°F
(20°C) - 180°F (82°C)] for high temperature systems and
[68°F (20°C) - 113°F (45 °C)] for low temperature systems.
11.13
DHW
SET
PREHEATING
HEATING
SET
HEATING
DHW
PREHEATING
A
djusting the heating water temperature
with an outdoor temperature sensor
connected
When an outdoor temperature sensor is installed, the
outlet temperature is automatically selected by the system,
which quickly adjusts the ambient temperature according
to the variations in the outdoor temperature. If you want
to change the temperature, raising it or lowering it with
respect to that automatically calculated by the electronic
board, it is possible to change the HEATING setpoint by
selecting SET on the main screen of the front control and
selecting within the range (-5 - +5) the desired comfort
level (see section “11.10 Setting the outdoor reset curve with
Note: when there is an outdoor temperature sensor
connected it is still possible to have the boiler operate at
a fixed point setting the values of MIN SP HEAT and MAX SP
HEAT at the desired HEATING setpoint.
11.14
Adjustment of the domestic hot water
temperature
To adjust the domestic hot water temperature (bath,
shower, kitchen, etc.), set the DOMESTIC HOT WATER setpoint
selecting SET on the main screen of the front control and
selecting the desired value within the range [+99.5°F
(37.5°C) - 140°F (60°C)].
For Family PRO IS boilers:
EXAMPLE A:
heat only with no indirect tank connected -
adjustment not applicable.
EXAMPLE B:
heat onlyg with an indirect tank managed by
an aquastat - adjustment not applicable.
EXAMPLE C:
heat only with an indirect tank managed by
a sensor - to adjust the stored domestic hot
water temperature in the indirect tank. Set
the DOMESTIC HOT WATER setpoint selecting SET
on the main screen of the front control and
choosing the desired value within the range
[+99.5°F (37.5°C) - 140°F (60°C)].
11.15
SET
HEATING
PREHEATING
DHW
SET
HEATING
DHW
PREHEATING
Adding devices (heating only boiler)
- Access the technical parameters as explained in the
section “11.6 Access to the technical parameters”.
- Select ADD HW TANK with the “up” and “down” buttons,
confirming the selection by pressing the “ENTER” button.
EXHAUST PROBE RESET
ADD HW TANK
TECHNICAL
INSTALLER
CALIBRATION
RANGE RATED
COMBUSTION ANALYSIS
CALIBRATION
RANGE RATED
COMBUSTION ANALYSIS
EXHAUST PROBE RESET
ADD HW TANK
TECHNICAL
INSTALLER
NOTICE
: After adding the indirect tank, in the “PROGRAM”
screen “DHW” appears. This function allows you to create
the DHW time-switch programming (see user manual).
11.16
“
Preheating” function (combi boiler only)
It is possible to access the PREHEATING function selecting
SET on the main screen of the front control.
Setting PREHEATING = 1, the boiler’s domestic hot water
function activates. This function keeps the water in the
domestic hot water exchanger at the DHW setpoint, to
reduce standby times when a request is made. When
the preheating function is enabled, the symbol P comes
on with a steady light at the top with respect to the hot
water icon. During burner ignition following a preheating
request, the symbol P starts flashing.
To deactivate the preheating function, set the parameter to
PREHEATING = 0, the symbol “P” switches off.
The function is not active when the boiler is OFF.
NOTICE
: some applications may not be suitable for
preheating, such as those with low flow rates and above
average incoming water temperatures. The combination of
these two occurrences can result in short-cycling when
used in conjunction with preheating.
SET
HEATING
DHW
PREHEATING
SET
HEATING
DHW
PREHEATING
11.17
Boiler
start-up
If there is a room thermostat, programming timer, or the front
control MASTER is set as a thermostat, it is necessary that these
are on and that they have been adjusted to a temperature higher
than the ambient temperature so that the boiler switches on.
The boiler will be in standby until the burner switches on
following a heat request.
Содержание Family PRO 42 IS
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