5
1. Power mains connection light (green)
This light indicates that power supply to the boiler is on.
2. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 25
and 35°C.
When this light is flashing, it indicates that the boiler has shut down due to a malfunction.
3. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 36
and 45°C.
When this light is flashing, it indicates that the boiler safety thermostat has shut the boiler down.
4. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 46
and 55°C.
When this light is flashing, it indicates that there is a fault in the exhaust system (CTN and RTN models) or in the air
intake and/or flue discharge piping (CTFS and RTFS models).
5. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 56
and 65°C.
When this light is flashing, it indicates a burner shut-down.
6. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 66
and 75°C.
When this light is flashing, it indicates that the water pressure in the boiler is too low.
7. Indication light (red)
When this light is on and fixed, this indicates that the temperature of the water in the heating system is between 76
and 85°C.
When this light is flashing, it indicates that the CH temperature is above 90°C.
8. Indication light (green)
When this light is on and fixed, this indicates that the boiler is operating in central heating mode.
When this light is flashing, this indicates that the boiler has shut down due to a malfunction.
9. Boiler mode / boiler reset knob
When the knob is in the OFF position the boiler is in stand-by mode.
When the knob is in the summer position, the boiler supplies DHW only.
When the knob is in the winter position, the boiler supplies both CH and DHW.
When the knob is in the anti-freezing position, only boiler anti-freezing function is active.
When the knob is turned to the reset position and back, the boiler resumes operation.
10. DHW temperature regulator
This knob is used to set the DHW temperature within a 35°C and a 62°C range.
WARNING
The boiler has a special built-in regulator limiting DHW flow up to 10 litre per minute. In addition to DHW temperature
setting through this regulator, supplied DHW temperature also depends on the quantity requested by the user and on
water mains supply temperature.
11. CH temperature adjustment
This knob is used to set the temperature for the water in the heating system. It can be set within a minimum 35°C
and a maximum 83°C range.
12. Water pressure gauge
The water pressure gauge indicates water pressure in the heating system.
1.1. Control panel
1. INSTRUCTIONS FOR THE USER
pic. 1
