SONNIGER CR ONE Operación Y Mantenimiento página 7

Operation and maintenance documentation HEATER CONDENS EC v202301
7.
AUTOMATIC CONTROL - INSTALLATION
A set of automatic control may be used (powered 230V) that consists of the following:
INTELLIGENT electronic control panel with an automatic speed controller, weekly program, and BMS communication.
2-way water valve with actuator; valve should be installed on a return stub of the heater.
8.
FIRST START
Do all the connections (electrical, water, and automatic control), check for tightness of all connections done by an installer, and
air-release/vent the device then start the device in the following sequence:
8.1 Switch on the mains,
8.2 Set the requested speed of the fan on the revs controller,
8.3 Set the requested temperature on the thermostat,
The fan operates continuously irrespective of whether the heater's valve is opened or not.
9.
TURNING OFF
To switch the device off do the following:
9.1 Set minimum temperature on the thermostat – after 7 seconds valve will be closed and the heating switched off.
9.2 Set the main switch to the "0" position (off); the fan the thermostat will be switched off)
10.
OPERATION
The engine and fan used in HEATER CONDENS units are maintenance-free devices but regular check-ups are advised, especially
motor and bearing (fan's rotor should rotate freely, free from any axial and radial throws and undesired knocks/rattles).
 In case of any metallic knocks, vibration or increase in sound level check if the fan mounting/fixing does not work
loose contact the installer or SONNIGER Authorized Service
 If it is planed the operation of devices in a humid environment, it is necessary to secure electrical connections by
building a connection block in a special box that meets the appropriate IP class.
11.
MAINTENANCE
The heat exchanger requires systematical cleaning of all specks of dirt/impurities. Before the start of the heating period, the
heat exchanger is advised to be cleaned with compressed air directed to the air outlets; there is no need for dismantling the
device. Pay special attention when cleaning the exchanger's fin due to the high possibility of damaging them. If fins are bent
use a tool specifically designated to carry out such repairs. If the device has not been used for a longer time, unplug it before
the next use.
The heat exchanger is not equipped with any fire protection device. The heat exchanger may be damaged if the room tempera-
ture goes below 0 C.
Anti-freeze liquid must be added to the water circulation/system. Anti-freeze liquid must be appropriate for the material the
exchanger is made of (copper) as well as other elements of the hydraulic system/circulation. The liquid must be diluted with
water according to the solution recommended by the anti-freeze manufacturer.
NOTICE !