Viadrus U22 Economy 16, Руководство по эксплуатации и установке

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Dear customer,
We thank you that you have bought a
VIADRUS U22 Economy boiler, thus having shown your confidence in VIADRUS brand.
To get you accustom from the very beginning to correct handling with your new boiler, please firstly read this manual for its using, especially
Chapter No. 7.
– Boiler servicing by an user, Chapter No. 8 – Maintenance, and Chapter No. 9 – Important warning. Please observe the below
mentioned information, in order to ensure a long-term trouble-free operation to your and our satisfaction.
The VIADRUS U22 Economy boiler is a cast-iron sectional gasifying boiler destined for ecological combustion of lump wood.
Combustion of other substances (for example, plastics) is not allowable.
1 Boiler usage and advantages
The
VIADRUS U22 Economy boiler meets the requirements for heating of one-family houses, shops, etc.
The boiler is manufactured as a warm-water boiler with natural and forced circulation of heating water and work overpressure up to 400 kPa (4
bar). Before dispatching, the unit is tested with the testing overpressure of 800 kPa (8 bar).
Advantages of the boiler:
1. High service life of the cast-iron heat-exchanger and all other parts thanks to the quality of the used materials.
2. Long-term proven structure.
3. Sophisticated production technology on the automatic forming lines with permanent and proven quality of the production process (ISO 9001,
ISO 14 001).
4. Combustion efficiency up to 91 %.
5. Low fuel consumption.
6. Simple manipulation and maintenance.
7. Quick warming of the flue channel.
8. Water-tube massive grates
9. Threaded flanges for simple mounting
10.
It meets emission class 5 according to ČSN EN 303-5, conditions of „Ecodesign“ and demanding conditions of the German BImSchV Stufe
2 emission norm.
11. Possibility of operation independent on electric energy (without a forced withdrawal of flue gases and without a circulating pump, excepting
systems with a storage tank)
12.
Patented system of the combustion chamber ViaBurn ™
2 Boiler's technical parameter
Tab. №. 1
Boiler's sizes and technical parameters
Boiler size - type 16 21 25 30 34 38 41
Combustion chamber volume dm
3
32 39 41 51 63 65 67
Water content l 40.5 46.5 46.5 52.0 58.0 58.0 58.0
Weight kg 348 410 410 472 534 534 534
Combustion chamber depth mm 280 370 370 480 590 590 590
Chimney throat diameter Ø D
mm 156
Boiler sizes: - height x width mm 1130 x 625
- depth L mm 890 1000 1000 1110 1220 1220 1220
Feed port sizes mm 310x236
Maximum operation pressure kPa
(bar)
400 (4)
Minimum operation water
pressure
kPa
(bar)
50 (0.5)
Testing water overpressure kPa
(bar)
800 (8)
Hydraulic loss - see Fig. No. 1
Minimum input water
temperature
°C
50
Recommended minimum
output water temperature
°C
70
Noise level dB < 65
Boiler connections: - heating
water
G 2“ or G 1 ½“ (* the size depends on the used type of the flange)
- return water
G 2“ or G 1 ½“ (* the size depends on the used type of the flange)
Cooling water temperature for
the redundant heat exhaust
device
°C
5
– 20
Cooling water overpressure for
the redundant heat exhaust
device
kPa
(bar)
200
– 600
(2 - 6)
Tab. №. 2
Technical parameters of VIADRUS U22 Economy, fuel - wood, class A
fuel humidity, max. 20 % calorific value: 14
– 18 MJ. kg -1
Boiler size - type 16 21 25 30 34 38 41
Boiler class according to EN 303
– 5
- 5 5 5 5 5 5 5
Nominal power kW
16 21 25 30 34 38 41
Indicative fuel consumption. kg/h 3.9 5.1 5.9 7.2 8.5 9.4 10.2
Max. fuel weight in the feeding chamber kg 13 17 19 22 24 26 28
Flue gases temperature at the nominal power
°C
140 - 190 140 - 190 140 - 190 140 - 190 140 - 190 140 - 190 140 - 190
Flue gases mass flow rate at the nominal power kg/s 0.012 0.014 0.015 0.016 0.018 0.019 0.022
Chimney draught
mbar
0.13 0.16 0.18 0.21 0.25 0.32 0.32
Combustion time
h
min. 2 min. 2 min. 2 min. 2 min. 2 min. 2 min. 2