Bedienungsanleitung Spartherm Nova E H2O (Seite 21 von 28) (Englisch)

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GB 21

5.3 MAINTENANCE OF THE HEAT EXCHANGER

At regular intervals during the heating season, the water pressure of the

heating system must be checked. The Nova E H2O must only be operated in

a completely filled and ventilated state.

The technical heating inspection and checking of all safety devices (thermal

discharge safety device, safety valve, etc.) and of the other components,

such as the pump thermostat, is required yearly before the heating season.

The instructions in the installation and operating manuals provided by the

respective manufacturers of the components must be complied with. This

check must only be executed by a specialised company that can ensure the

functionality of the individual components. We recommend that you con-

clude a maintenance contract with your specialised company. The executed

yearly safety inspections must be documented by your specialised company

in the commissioning protocol! If there is a complaint, documentation of the

maintenance tasks that have been executed must be submitted to service

personnel.

Access to the water-side connections of the Nova E H2O must be possible

via the heating chamber (see Fig. 2a).

Operation without combustion chamber lining is not permitted!

6. ADVISOR

Note: The fireplace must not be used as a waste incinerator! In addition,

the fireplace is a temporary burning fireplace. Continuous burning can-

not be achieved even through withdrawal of the combustion air and is not

permitted!

You can solve the following problems on your own:

Problem description Solution

Thermal discharge safety device

trips constantly (constant water

outflow through the discharge).

The water heat exchanger cannot

dissipate heat to the heating

system.

- The buffer tank is „full“. Withdraw heat from the tank.

- Check function and settings of the pump thermostat and the

return flow boost.

- Set the pump one level higher (higher flow rate).

- Circulation pump does not run. Is the pump or power connection

defective?

- Return flow temperature too high, < 75°C.

- Check whether the shut-off elements are closed.

- Is sufficient heating water available?

- Ventilate.

Thermal discharge safety device

drips.

- Contamination of the discharge safety device.

- Flush the thermal discharge safety device by activating the red

button on the fitting.

- Check the seat of the connection seals and the piston (see the

manual provided by the manufacturer).

- If necessary, integrate filter in the system upstream of the

discharge safety device (pay attention to the minimum flow!)

Gurgling noises, boiling noises

in the water-bearing parts of the

Nova E H2O (Air in the system).

- Check system pressure.

- Ventilate system via the vent. For newly filled or topped up

systems it takes some time for all the air to accumulate. Often

ventilating once does not suffice.

Radiators do not warm up. - Close radiator thermostats when the set room temperature is

reached. The convection heat of the fireplace is distributed in

the air composite.

- Depending on the configuration, the heating system is inert. It

takes some time until the heating system dissipates its heat.

- Have the heating system hydraulically calibrated.

- Check heating circuit pump for function.

- Ventilate the system.

Increasing and faster contamina-

tion of the combustion chamber

lining and of the glass ceramics.

The combustion chamber lining no

longer burns free. Fire can only be

ignited with difficulty.

· Remove deposits in the heat exchanger and in the connecting

line to the chimney.

· Pay attention to correct firing, wood feed quantity, wood moisture

content < 20%.

· Check chimney draught.

· Check return flow temperature boost.

Draught problems If there are draught problems, the turbulators in the flue gas

channels can be removed. However, through this measure, a lower

capacity on the water-side of approx. 1 - 4% is possible.

For other problems, contact your fireplace constructor / heating specialist!

Only use the spare parts offered by the manufacturer!

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