3
Dear customer,
We thank you that you have bought a gas VIADRUS GARDE G42 ECO boiler, thus having shown your confidence in VIADRUS brand.
In order to accustom to correct manipulation with your new product, before installation and commissioning, please carefully acquaintance with
the instruction manual (mainly, chapter 12
–
Operation with the stove by an user, chapter 13 - Maintenance, and chapter No. 14
–
Important
warnings). Please observe the below mentioned information, and mainly perform specified annual checks by a professional company, in order
to ensure a long-term trouble-free operation to your and our satisfaction.
1
Produced versions of boilers
1.1
Order
Please specify in your order a specification code for ordering
:
VIADRUS GARDE G42 ECO x
1
x
2
x
3
x
4
x
5
x
6
x
7
x
1
Size:
2
: 2-sections design
3
: 3-sections design
4
: 4-sections design
5
: 5-sections design
x
2
Fuel:
Z:
natural gas
x
3
Flue gases
exhaust:
0
: without forced flue gases exhaust
V
: forced flue gases exhaust
x
4
Gas valve:
1
: 1
– stage gas valve
2
: 2
– stage gas valve
x
5
Regulation:
0
: standard delivery
1
: CM 707 space thermostat
(on customer's request, pump's thermostat, outdoor thermostat, type 95001)
x
6
Burner:
T
: low-
emission burner Třinec
x
7
Design:
H
: Honeywell
S
: SIT
Tab. №. 1
Produced versions
Boiler's basic versions
Size
Fuel
Flue gases
exhaust
Gas valve
Regulation
Burner:
Design
X
X
X
X
X
X
X
Z
0
V
1
T
0
1
T
H
S
NG boiler
2
– stage gas valve
3 sect.
x
x
x
x
x
x
x
x
x
4 sect.
x
x
x
x
x
x
x
x
x
5 sect.
x
x
x
x
x
x
x
x
x
NG boiler
1
– stage gas valve
2 sect.
x
x
x
x
x
x
x
x
3 sect.
x
x
x
x
x
x
x
x
4 sect.
x
x
x
x
x
x
x
x
5 sect.
x
x
x
x
x
x
x
x
2
Boiler usage and advantages
The cast-iron sectional gas boiler VIADRUS GARDE G42 ECO (hereunder referred as in general G42 ECO) equipped with an atmospheric
burner is destined for combustion of low-pressure natural gas. The boiler is being produced in design
B
11BS
, it means it is equipped with a
safety device for prevention of flue-gas reverse-motion. A two-sections and three-sections design is suitable for reconstruction of heat sources
in separate dwelling units, for small accommodation and recreation facilities. Bigger sizes comply with requirements for heating of single-family
houses, shops, schools, etc.
The boiler is manufactured as a warm-water boiler with forced circulation and work overpressure up to 400 kPa (4 bar). Before dispatching, it is
tested for tightness with testing overpressure of 800 kPa (8 bar); it complies with tests of insulating and transition resistance.
In case of requirement for preferential heating of domestic hot water, you may separately order VIADRUS OV 100 L stationary heater, the
design of which complies with the G42 ECO boiler.
The electric connection of the boiler is adapted for connection of a stack heater of domestic hot water with provision of its preferential heating.
Thanks to the top-quality structure of its cast-iron sections, the low-temperature cast-iron boiler prevents creation of condensate and, by this, a
danger of low-temperature corrosion.
The heat-delivery (convective) surfaces of the boiler drum reach high usage of heat that is contained in flue gases. Due to the use of high-
quality cast iron, the boiler is able to transfer fully the received heat to heating water uniformly in all parts of the boiler.
There is no necessity to maintain heating water at temperature above 50 °C because no damage due to low-temperature corrosion arise in this
boiler at temperatures of return water about 30 °C.
While designing the boiler, we use in full range empiric knowledge of boilers operation within our climatic conditions, whereas, especially in the
transition time of the heating period, boilers are often operated with low temperature of heating water. On one hand, such operating increases
boiler efficiency, but on the other hand, it however increases a risk of low-temperature corrosion of the heat-exchanger. But even such
economic operation does not cause this negative phenomenon.
