First start-up
Installation, use and maintenance manual – Caldaia 55.1 and 100.2 Tech
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2. After the operation, reassemble the front panel of the boiler
and the fitting cover.
4.4
CONTROL THROUGH OPTIONAL
OCDS006 REMOTE CONTROL -
RECOMMENDED SOLUTION
The use of the remote control allows you to adjust the opera-
tion of the boiler to the desired temperature, in the time pro-
gramming chosen, provides a series of information on the status
of operation and/or boiler lock and also allows the resetting of
some locks.
For the electrical connection of the remote control, follow the
instructions given in Paragraph 4.3
The remote control is electrically connected to the boiler
by means of two non-polarized conductors through
which it receives the power supply necessary for its op-
eration and carries out communication between the two
devices.
4.5
POSITIONING THE CONTROL SYSTEM
Install the chosen thermostat/control system according to the
following guidelines:
▶
At about 1,5 m from the floor, protected against air draughts,
direct exposure to sun rays and direct heat sources (lamps,
hot air flow from the unit itself, etc.).
▶
If possible, do not place the control system on walls bor-
dering the outside, to avoid false temperature readings
and therefore affect system operation. If this is not possible,
shield the control system by placing a sheet of insulating
material (cork, polystyrene or other similar) between the
control system and the wall.
By following the above guidelines, unwanted starting
and stopping of the system can be avoided and optimal
comfort in the heated space can be guaranteed.
4.6
OPERATION VIA CENTRALISED
EXTERNAL REQUEST
The unit's operation can also be controlled by means of an ex-
ternal request. This request, activated for example by a program-
mable timer or another system, can be used for the centralised
activation or deactivation of several boilers.
For the electrical connection of the external request, follow the
instructions below:
1. Remove the boiler front panel (Paragraph 5.2 p. 26).
2. Unscrew the two screws and remove the terminal block cov-
er plate (Figure 4.2
3. Connect the external request to the terminal block.
4. After the operation, reassemble the cover plate and then the
front panel.
The terminals have open contacts from the factory
(active request). If the boiler is to be switched off, the
contact between the terminals must be closed. When
these are closed, the boiler will stop, while when they are
reopened, the boiler can be activated according to what
has been set on the other controls (room thermostat or
remote control).
In the case of centralized management of several boilers,
each request must be connected through the interposi-
tion of a relay.
For further information on the operation and use of
boilers in this mode, please contact the Robur technical
service.
Figure 4.2
Terminal block for connecting the external control unit
A
Plate
B
Terminal block
A
B
4.7
OPERATION WITH EXTERNAL
TEMPERATURE PROBE (OPTIONAL)
It is possible to operate the boiler with a variable water flow tem-
perature depending on the outdoor temperature.
To do this it is necessary to install an outdoor temperature probe
(available as an optional OSND007) and connect it to the SE ter-
minals (B3-S3) of the boiler terminal block (Figure 1.11
and Figure 1.13
The outdoor temperature probe provides the temperature val-
ue of the outdoor air and according to this the electronic board
of the boiler will change the water supply temperature. The ex-
tent of the temperature correction depends on the temperature
control value Kd set (using the board parameter P16 - see Figure
p. 31).
5
FIRST START-UP
First start-up entails checking/setting up the combus-
tion parameters and may exclusively be carried out by a
Robur TAC. NEITHER the user NOR the installation tech-
nician is authorised to perform such operations, under