Sirena Cal HFD
6
7
TIMER-BASED OPERATION (OPTIONAL)
The boiler Sirena can be supplied with a timer, as an option, to be mounted on the main board. The
boiler and the timer are supplied with an easy mounting system, which consist in a 12-pole connector
(X12)
shown in the Electrical Diagram.
Boilers equipped with a timer have the possibility of operating in three positions, depending on which
the programmer switch is:
- Run (I): In this position, the boiler will operate continuously, irrespective of the position of
programmer tabs.
- Automatic
: When the timer switch is at this position, the boiler will operate with switching
ON/OFF cycles according to the programmer tabs. The boiler will be switched ON at the positions
on which tabs are pressed outwardly, and it will be switched OFF at those positions on which tabs
are pressed inwardly.
- Stop (O): The boiler will be disconnected at this position.
In order to set the time on the timer, set the current time over the arrow provided in the timer for such
a purpose.
8
BOILER STOP
Set the main selector
(6)
to "O" position in order to stop completely the boiler.
9
START-UP
The start-up of the boiler, for the validity of warranty to be in force, is to be carried out by a Technical
Assistance Service authorised by DOMUSA TEKNIK. Prior to proceeding to such a start-up, the
following steps will be performed:
- The boiler is to be electrically connected to the mains.
- The installation has to be filled up with water (manometer between 1-1.5 bar).
- Oil is to come up to the burner at a pressure not higher than 0.5 bar.
In order to start up the boiler, set the main selector, control thermostat, and the timer and the room
thermostat (if any), at the desired position.
10
EQUIPMENT DELIVERY
The Technical Assistance Service, once the first start-up has been carried out, will explain the boiler
operation to the users by informing them about the most necessary remarks.
The fitter will be responsible for explaining to the users the operation of any control or regulation
device that is a part of the installation and it is not supplied with the boiler.
11
BOILER MAINTENANCE
In order to maintain the boiler under correct operating conditions, a checking operation is to be made
by DOMUSA TEKNIK’s authorised personnel on a yearly basis. Notwithstanding:
Summary of Contents for SIRENA CAL HFD
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