La Nordica Fly Idro D.S.A белая [17/64] Closed expansion tank system

FLY IDRO DSA

7193505 - IT-EN-DE-FR 17

5. SAFETY VALVE FROM 1,5 bar: maximum operation pressure allowed for the system is 1,5 bar (equal to 15 m of the water column).

Higher pressures can cause deformation and breakage of the boiler body.

6. SAFETY DEVICES envisioned by Regulations in vigour.

7. CIRCULATION PUMP : . It would be better to install it on the return in order to avoid that it could disconnect itself at very high water

temperatures but checking that it does not drive water in the open expansion tank otherwise it should cause a continuous water

oxygenation with consequent, fast corrosion of boiler body. It must be not to avoid a forced circulation in the open expansion tank.

Furthermore it must be electrically connected to a thermostat or a electronic control unit that can be purchased with the thermo-

boiler body could break or even explode.

ATTENTION: For no reason must the re be ignited before the system has been completely lled with water; doing this would

lead to serious damage of the entire structure. The system must be lled by means of the loading pipe directly from the open tank

in a way to prevent an excessive pressure of the water network deforming the body of the thermo heating stove.

The system must be kept constantly full of water even during the periods when the use of the thermo-heating stove is not requested. During

the winter, inactivity must be faced with the addition of antifreeze.

2.2. CLOSED expansion Tank system

It is COMPULSORY that the CLOSED expansion Tank system is provided with:

1. A 3 bar SAFETY VALVE: maximum operation pressure allowed for the system is 3 bar (equal to 30 m of the water column). Higher

pressures can cause deformation and breakage of the boiler body. ATTENTION: The inside diameter of the supply pipe which

present in the thermoproduct. The above mentioned connection pipe must be without siphoning parts.

5. PUMP CONTROL THERMOSTAT

6. NOISE ALARM ACTIVATION THERMOSTAT

7. NOISE ALARM

8. TEMPERATURE INDICATOR

9. PRESSURE INDICATOR

10. PUMP SYSTEM

ATTENTION: safety sensors must be in place on the machine according to that stated in chapter 2.1. All those parts must no have for any

reason meditate intercept bodies that could accidentally exclude them and must be placed in rooms which are protected from frost. On

the contrary, if they freeze, the boiler body could break or even explode.

exchanger Picture 1 at page 50. Routes 1 and 3 are always open and, along with the pump installed on the return (R), they guarantee water

circulation inside the biomass boiler exchanger (CB). An elevated return temperature, allows efciency improvement, reduces formation of

smoke condensation and prolongs the boiler life span.

Valves on the market have different calibrations. La NORDICA advises use of model 55°c with 1” hydraulic connections. Once the valve

calibration temperature is reached, route 2 opens and the boiler water goes to the system via the ow (M).

IMPORTANT lack of installation of the device voids the heat exchanger warranty.

2.4. AUTOMATIC THERMAL DISCHARGE VALVE DSA (purchased as OPTIONAL part)

Solid fuel thermo products must be installed with safety devices determined by laws in vigour. For this reason the thermo products is

equipped with a heat discharge coil.

The heat discharge coil must have one side connected to the water network (Picture 1 at page 50 / Chap. DIMENSIONS - A) and the other

ATTENTION: The lling of the system must take place exclusively by the natural fall of the water from the open expansion tank

through the feed pipe in order to avoid that a too high water system grid pressure could change or cause the explosion of

boiler body.