Low Batteries - Beretta ALPHA DGT Manual De Instalacion Y Uso

INSTALLATION OF RECEIVER
Secure the receiver in the proximity of the boiler using the screws
and wall plugs or using the adhesive magnetic strips on the external
boiler casing including to fix (both fixing tools are provided).
The location should be chosen in order to see the receiver light/
button. For no reason should the receiver box be opened. The ap-
pliance can only be mounted indoors and in areas free from any
water or moisture. Wiring must conform to IEE regulations. RF Ad-
dress Code Setting, if there is another user nearby, e.g. in the next
dwelling, you receiver may be operated in error by their transmitter.
You may select a different RF address code to prevent this. (see
encoding section).
NOTE: do not fix the receiver in a permanent way to the boiler casing.
INSTALLATION OF TRANSMITTER
The receiver and the transmitter are delivered already coupled
therefore the encoding procedure should not be necessary during
installation.
In case it is required to encode the transmitter and the receiver, this
operation should be done while the receiver and the transmitter are
still very near (see the encoding instructions).
Before fixing the transmitter check that the radio signal is active
(if there is no communication the receiver will blink red or green
irregularly).
Because the transmitter uses radio waves to communicate with
the receiver, you should also bear in mind that metallic objects can
weaken or deflect radio signals: this includes steel reinforced walls,
filing cabinets, kitchen appliances, mirrors, etc. The range of the
Radiostat is 40 metres in open air, and 20 metres inside buildings,
dependent on RF obstructions as mentioned
above.
Position the Radiostat on a wall surface away
from obstructions and direct heat sources or
draughts, in a room that is warmed by the heating
system. The fixing of the transmitter can be done
with screws and wall plugs.
See the diagram as reference to drilling the wall. Distance between
the 2 holes is 60 mm, drill hole dia. 5 mm.
In case of using wall plugs, the transmitter box must be open to fix
the screws to the wall plugs from inside the box. The opening of
the transmitter must be done by pressing gently on the lower button
latch to remove from back plate. Fit the supplied two batteries inside
the transmitter with the direction as indicated internally.
WARNING: Do not touch the printed circuit board of the transmitter
as it contains electrostatically sensitive components.
FUNCTIONS
The weekly thermostat has the following functions:
• Room thermostat: the internal temperature sensor detects the
temperature and, comparing with the set point, switches ON or
OFF the heating request (according to the programmed timings).
The temperature sensor is located on the lower side of the item.
• Time: on the display it is possible to set and read the time.
• Programming timing: it is possible to select the desired ON or OFF
heating times. The programming is possible during one week,
24-hours and the minimum time segment is one hour.
• Status mode: AUTO, PARTY, OFF: Select AUTO mode if timed ON/
OFF periods are required. Select PARTY mode for constant ON
(24-hours). Select PARTY mode for constant ON (24-hours). Select
OFF mode for heating OFF (summer mode). Note: summer/winter
selection is better to be selected on the main boiler dashboard.
• ADVANCE functions: the pre-programmed heating pattern is
advanced to the next ON (or OFF) period.
• 3 level temperatures: comfort, economy and frost protection.
• Frost protection functionality.
• Battery low.
• Alarm of missing radio frequency communication on the receiver.
• Room temperature calibration.
• Automatic boiler switch ON for radio communication errors (missing
communication between receiver and transmitter).
• Heating or cooling mode operation selection. Relay position is
inverted.
• Disable the room sensor to trasform the termostat in a swicthing
operator accoring the programmed timing only and independet
from the room temperature.
OPERATING INSTRUCTIONS
At the first installation of the thermostat, the time and the day of the
week needs to be set (see encoder paragraph). After this, a desired
thermostat status must be selected (see the encoder paragraph).
When in AUTO mode the heating request follows the programmed
heating pattern and the desired room temperature selected.
When in PARTY mode the heating request is ON all the time
according to the desired room temperature selected.
When in OFF mode, the heating request is OFF all the time (frost
protection is ON).
The thermostat is pre-programmed with a default heating pattern
(see table below); however this can be modified to suit individual
needs (see encoder paragraph).
Pre-programmed heating pattern
Day ON
Monday (day 1) 06:00
Tuesday (day 2) 06:00
Wednesday (day 3) 06:00
Thursday (day 4) 06:00
Friday (day 5) 06:00
Saturday (day 6) 08:00
Sunday (day 7) 08:00
Other factory set values are:
• Comfort temperature: 21°C
• Economy temperature: 16°C
• Frost protection temperature: 5°C
• Hysteresis OFF: 0,4°C (boiler switch OFF at 0,4°C above the target)
• Hysteresis ON: 0,2°C (boiler switch ON at 0,2°C below the target)
• The cooling mode respects the above values. (economy tempera-
ture in cooling mode has no-meaning as the switching of the relay
is don only according the comfort temperature value).

LOW BATTERIES

The two supplied batteries will last for approximately 1 year under
a normal usage. When the batteries are low, the relative icon will
appear on the display. It is better to change the batteries on time in
order avoid any lack of heating supply during the day.
Follow the correct positioning of the batteries according to the inter-
nal transmitter battery box indications.
Every time the batteries are removed the transmitter loses only the
time. The programmed times, the set temperatures and the transmit-
ter coupling code are maintained memorized.
ERRORS
• In the case of missing communication between the receiver and the
transmitter, the red or green led on the receiver starts to blink irregu-
larly, after 350 sec of the communication being lost. The above error
can happen either when the battery power on the transmitter is low
(battery icon ON on the transmitter display) and when the location of
the transmitter is not suitable (too far a distance or internal home dis-
turbs like a concrete wall or electronic interference etc.) (see "NOTE
2 FOR RECEIVER"). Once the communication has returned, the
transmitter automatically returns to a normal working mode.
• In the case of missing communication, the receiver will automatical-
ly switch on the heating requested to the boiler (the boiler switching
on will depend on the summer/winter position on the boiler dash-
board, not from the thermostat request). This will prevent freezing
in case of missing communication between the receiver and the
transmitter in winter position.
• If the receiver is located at the limit of wireless maximum distance,
the receiver can lose the communication for a while and then back
to normal working mode.
• In the case of missing supply to the receiver (electrical black out),
the communication will be lost but at the return of the electricity,
the receiver will automatically return to a standard working mode
according to the transmitter signal. There is no requirement for any
special operation on the receiver/transmitter in the case of miss-
ing communication unless it is necessary to change location of the
transmitter.
5
OFF ON
08:00 16:00 22:00
08:00 16:00 22:00
08:00 16:00 22:00
08:00 16:00 22:00
08:00 16:00 22:00
11:00 16:00 23:00
11:00 16:00 23:00
OFF