Viadrus GARD G42 ECO, Руководство по эксплуатации и установке

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4
Advantages of the boiler:
1. High operational reliability and long service life due to the use of high-quality grey cast iron with lamellar graphite.
2. The top-quality structure of the cast-iron sections with a decreased weight in comparison to the previous versions prevents creation of
condensate and, by this, a danger of low-temperature corrosion as well.
3. Economic low-temperature operation without occurrence of condensate.
4. High effectiveness up to 93 %.
5. Reliability of regulation and safety elements.
6. Equipping with a flue gases reverse flow safety device that in case of insufficient chimney draught switches-off the boiler; it helps to
increase the boiler safety.
7. A possibility of connection of some of superior regulations on the base of the customer's requirements to the level of heat comfort.
8. Two-stage working operation of the boiler with help of the HIGH-LOW coil.
9. Besides of that, VIADRUS GARDE G42 ECO boilers are combined with a possibility of connection of VIADRUS
OV 100 L stationary water heater.
10. Low content of harmful substances in flue gases are far lower than the value specified in Directive of the Ministry of Environment No. 05-
97 "Ecologically friendly product" and meets the requirements of the strictest European norms, for example, even the border of "Blue
angel".
11. A high combustion chamber enables clean flame combustion.
12. In case of the use of the pump thermostat, monitoring of the minimum temperature of boiler water is ensured.
13. Simple manipulation and maintenance. The boiler drum can be easily mechanically cleaned-up with help of an attached brush.
14. In case of equipping with a withdrawal flue-gas fan, which enables exhaust of flue gases to the outdoor space directly through the
external wall, the boiler can be installed into a premise where there is no possibility to connect the boiler to a chimney.
3 Boiler's technical data
Tab. №. 2
Boiler's sizes, operating temperature and electrical parameters
Number of sections pcs 2 3 4 5
Boiler design B
11BS
in NG design
Consumer category II
2H3P
Heating power kW 8 12-17 18-26 22-30
Weight kg 75 100 122 146
Water content l 7 9.2 11.4 13.6
Chimney throat diameter mm 80 110 130 160
Boiler sizes - width mm 335 420 505 590
- depth x height mm 758
× 957
Operating water overpressure kPa (bar) 400 (4)
Testing water overpressure kPa (bar) 800 (8)
Maximum heating water temperature
°C
85
Minimum heating water temperature
°C
45
Minimum return water temperature
°C
45 (25*)
Noise level dB max. 65 dB (A)
Chimney draught mbar min. 0.025
Boiler connections - heating water Js 1
“
- return water Js 1
“
- gas Js 1/2"
Connecting voltage 1/N/PE 230 V AC 50 Hz TN-S
Electrical input kW 0.1
Electric cover IP 40
* In the observance of the minimum temperature of heating water
Tab. №. 3
Boiler's thermal-technical parameters
(calorific value 34,16 MJ. m
-3
, gas temperature 15°C and air barometric pressure 1013,25 mbar)
Number of sections pcs 2 3 4 5
Nominal heating power - maximum kW 8 17 26 30
Nominal heating power - minimum kW - 12 18 22
Nominal heating input - maximum kW 8.87 18.52 28.32 33
Nominal heating input - minimum kW - 12.95 19.25 24.42
Volume flow rate of gas at the maximum heating power m
3
.hour
-1
0.935 1.952 2.985 3.46
Volume flow rate of gas at the minimum heating power m
3
.hour
-1
- 1.365 2.029 2.57
Volume flow rate of gas at the maximum heating power dm
3
.min
-1
15.58 32.53 49.75 57.81
Volume flow rate of gas at the minimum heating power dm
3
.min
-1
- 22.75 33.82 42.91
Efficiency at the maximum heating power % 90
– 92
Efficiency at the minimum heating power % 90
– 93.5
NOx Class 5
Temperature of flue gases in the flue gas ducting at the maximum heating power
°C
105
– 125
Temperature of flue gases in the flue gas ducting at the minimum heating power
°C
80
– 100
Real quantity of dry flue gases at the maximum heating power m
3
.m
-3
17.38 23.33 19.71 23.89
Real quantity of dry flue gases at the minimum heating power m
3
.m
-3
- 25.09 27.10 28.67
Connecting gas overpressure mbar 20
Gas overpressure on nozzles of the burner at the maximum heating power mbar 13.2 14.9 14.8 14.7
Gas overpressure on nozzles of the burner at the minimum heating power mbar - 8 7.6 9.8
Number of nozzles pcs 1 2 4 5
Nozzle diameter mm 2.45 2.45 2.20 2.20
Remark: In case of a single-stage valve, its heating power is being set in the production plant to the maximum.