Viadrus G 700, Manual

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4
1.
Boiler use and advantages
A single-row cast-iron sectional hot-water boiler with an overpressure combustion chamber and a
direct firing designed for gas ( natural gas ) and fluid fuels ( furnace oil extra light ) central heating . The
pressure burners used in combination with boiler must correspond to:
Č SN EN 676: 2000 – Gaseous fuels burners with a ventilator and an automatic control
Č SN EN 267: 2000 – Fluid fuels burners wit a ventilator
Č SN EN 303-1:1999 – Boiler pro central heating with b ventilator
Č SN EN 303-2:1999 – Boiler pro central heating b ventilator
Č SN EN 303-3:1999 – Boiler pro central heating b ventilator
The boiler is produced exclusively for low-pressure hot-water central heating systems with
maximum 90 °C heating water operating temperature (optionally up to 115°C), minimum 60°C heating water
operating temperature at maximum 4 bar operating overpressure .
The boiler drum is tested by 8 bar testing overpressure.
Boiler advantages are as follows:
1. Longstanding service life of cast-iron boiler drum
2. Highly economical operation. Combustion efficiency in the whole power series is higher than 91,5 % for all
sorts of fuel
3. Optionally a delivery incl. the burner
4. Modern design
5. Fully automatic two-stage operation
6. Boiler operation and defects signalling, possibly use of signals for transfer into a superior control system
7. Possibility to operate boiler through the superior automatics or a spatial temperature sensor
8. According to the boiler layout the closing plate can either open to the left-or the right hand side
9. Easily accessible sight glass and the probe for overpressure measuring in combustion chamber.
10. In combination with recommended burners (see chapter “Boiler technical parameters”) this boiler is
environmentally friendly because the whole power series combustion results meet the strict environmental
standards and regulations.