6 | SmithsEP.co.uk | Issue 001 - September 2018
Technical Documentation waterfan HEATER
v201803
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:
1. Switch on the mains,
2. Set requested speed of fan on revs controller,
3. Set requested temperature on 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:
1. Set minimum temperature on thermostat – after 7 seconds valve will be closed and heating switched off.
2. Set main switch to the “0” position (off); fan will be switched off and the thermostat will be off the power.
10. OPERATION
The engine and fan used in HEATER 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).
11. MAINTENANCE
The heat exchanger requires systematical cleaning all dirts /impurities off. 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 of the
device. Pay special attention when cleaning the exchanger’s fin due to 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 period of 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
temperature 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 !
!
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
COMFORT panel description
ON/OFF
– turning ON/OFF a unit
I-II-III
– switch for fan speed regulation
HEAT
- thermostat sends signal for valve and actuator and fan, fan turns off when temperature in room is
achieved, valve/actuator closes water supply.
FAN
– function not active, unit will not operate when FAN switch is selected
COOL
– termostat sends signal only to fan, fan begins operation starting from temperature which is set on
thermostat (function used to air mixer HEATER MIX or for room ventilation in summer season)
