Stropuva S7 Mode d’emploi

STROPUVA

TECHNICAL PASSPORT,

INSTALLATION AND MAINTENANCE

INSTRUCTION

Solid fuel boiler for

central heating

2
 
 
 
TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION 
 
 
Table of Contents 
1TECHNICAL SPECIFICATIONS..................................................................................................................... 3 
1 MAIN TECHNICAL SPECIFICATIONS................................................................................................. 3 
2BOILER STRUCTURE.................................................................................................................................. 5 
1 DESCRIPTION OF BOILER STRUCTURE............................................................................................. 5 
3BOILER PARTS .......................................................................................................................................... 6 
1 AIR INJECTION COLLECTOR ............................................................................................................ 6 
2 AIR DISTRIBUTOR .......................................................................................................................... 6 
3 FIRE GRATE ................................................................................................................................... 7 
4 DEFLECTORS.................................................................................................................................. 8 
5 SAFETY VALVE 1.5 BAR. ................................................................................................................. 8 
4TRANSPORTATION AND STORAGE ........................................................................................................... 9 
5BOILER INSTALLATION .............................................................................................................................. 9 
1 FIRE PREVENTION REQUIREMENTS ................................................................................................ 9 
2 FLUE REQUIREMENTS .................................................................................................................... 9 
3 REQUIREMENTS FOR CONNECTION TO THE HEATING SYSTEM...................................................... 10 
6HEATING SYSTEM DIAGRAM.................................................................................................................. 11 
1 DIAGRAM OPERATION EXPLANATION.......................................................................................... 12 
2 Connection diagram of „Stropuva“ boiler to another boiler, water heater and floor heating ........ 13 
3 Connection diagram of „Stropuva“ boiler to another boiler, water heater, radiator, floor heating.14 
4 Connection diagram of „Stropuva“ boiler to another boiler, water heater and radiator................ 15 
7FIRING AND FUELING THE BOILER............................................................................................................ 16 
1 FUEL BURNS MOST EFFICIENTLY WHEN COMBUSTION CHAMBER IS FULLY LOADED ..................... 16 
2 RECOMMENDATIONS WHEN FIRING UNIVERSAL ‘‘STROPUVA“BOILER.......................................... 17 
3 SETTING THE DRAFT REGULATOR................................................................................................. 17 
4 ASSESSMENT OF BOILER OPERATION............................................................................................. 18 
5 CLEANING AND MAINTAINING THE BOILER..................................................................................... 18 
8SAFETY EQUIPMENT REQUIREMENTS..................................................................................................... 19 
9RISK ASSESSMENT ................................................................................................................................. 20 
1 HEAT HAZARDS ........................................................................................................................... 20 
2 PRESSURE HAZARDS..................................................................................................................... 20 
3 POSSIBILITY OF POISONING ......................................................................................................... 20 
4 ELECTRICAL CONNECTION REQUIREMENTS .................................................................................. 20 
ACCESSORIES.................................................................................................................................... 21 
1 PELLET BURNER........................................................................................................................... 21 
PACKAGE CONTENT .......................................................................................................................... 22 
PRODUCT WARRANTY CONDITIONS.................................................................................................. 23 
WARRANTY CERTIFICATE .................................................................................................................. 24 
 
 

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

ATTENTION! Before installing and using the heating boiler, carefully read the

instruction. It will help you correctly install and effectively use the product while also

preventing possible incidents.

1 TECHNICAL SPECIFICATIONS

Solid fuel water heating boiler “Stropuva” (hereafter boiler) designed for various rooms,

which are equipped with a central heating system, radiator, boilers preparing domestic hot

water, floor coils, heaters, or all mentioned, heating. The system can be with natural and

forced circulation and have an open or closed system.

JSC “Stropuva ir ko’’ produces three types of boilers:

•Firewood (firewood);

•“U’’ universal (firewood, coal, peat and sawdust briquettes, pellets, woodchips);

•“BIO’’ (firewood, sawdust briquettes, pellets, wood chips);

with six 7 kW; 10 kW; 12 kW; 20 kW; 30 kW; 40kW power capacities. Boilers “Stropuva’’

can be used to heat premise area ranging from 100 to 400 m2.

1.1 MAIN TECHNICAL SPECIFICATIONS

Fuel used: firewood, wood residue, sawdust briquettes, peat briquettes, coal, pellets.

Recommended fuel moisture up to 30 %.

Model of boiler

S10

S12

S20

S30

S40

BIO

S10

BIO

S12

BIO

S20

BIO

S30

BIO

S40

BIO

S10

S12

S20

S30

S40

Power (kW) *

Heated area (m2) **

20-70

50-100

70-120

100-

200

150-

300

200-

400

20-

50-

100

70-

120

100-

200

150-

300

200-

400

50-

100

70-

120

100-

200

150-

300

200-

400

Fuel capacity (dm3)

116

165

200

256

320

116

165

200

256

320

130

165

200

265

Maximum firewood amount (kg)

Maximum pellet amount (kg)

105

130

180

220

105

130

180

220

Maximum briquette amount (kg)

106

141

170

222

264

141

170

222

264

Maximum coal amount (kg)

116

149

176

Burning time of firewood,

minimum mode.

Maximum mode. ***

5,6

31,5

6,1

31.5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

5,6

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

31,5

6,1

Burning time of briquettes,

minimum mode

Maximum mode ***

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

Model of boiler

S10

S12

S20

S30

S40

BIO

S10

BIO

S12

BIO

S20

BIO

S30

BIO

S40

BIO

S10

S12

S20

S30

S40

Burning time of pellets, minimum

mode.

Maximum mode. ***

Burning time of coal, minimum

mode.

Maximum mode. ***

130

Firewood length up to (cm)

Boiler water amount (l)

Efficiency (%)

Pressure safety valve (bar)

1,5

1.5

1,5

1.5

1,5

1.5

1,5

1.5

1,5

1.5

1,5

1.5

1,5

Chimney draught (mbar)

0,12

Maximum heated water flow

(l/h)

200

250

300

500

800

1000

200

250

300

500

800

1000

250

300

500

800

1000

Lowest boiler water temperature

(°C)

Minimum chimney flue area

(cm2)

150

200

250

330

150

200

250

330

200

250

330

Chimney diameter (mm)

160

180

200

160

180

200

180

200

Distance between ground and the

chimney (mm)

991

1413.5

1302

1550

1285

1549

991

1413.5

1302

1550

1285

1549

1494

1302

1673.5

1285

1664

Dimensions (mm)

(1900)

1330

450

1900

450

1700

550

2100

550

1700

670

2100

670

1330

450

1900

450

1700

550

2100

550

1700

670

2100

670

1900

450

1700

550

2100

550

1700

670

2100

670

Weight (kg)

134

158,5

193

218,5

258

318

140

165,5

211

236,5

284,5

344,5

177

213

243

297,5

345,5

*Power depends on the quality of fuel and time: at the beginning of burning power output is

higher than indicated in the table, boiler puts out smoke that is hotter than 300 °C, therefore raisin

residues burn out, flue gets warmed up and draft increases (in some models, direct channel to flue

is opened). While burning, power of boiler decreases because the surface of heat dissipation

increases and draft decreases, but when a house becomes warm the power is sufficient and

additional valve is opened in order to further decrease the power of boiler.

** Power of boiler is selected according to area of premise. For example, if in Stropuva S20

solid fuel boiler built in 200 m2building with one load burns 24 hours, then one load of firewood in

Stropuva S40 solid fuel boiler would burn for almost 48 hours.

*** Burning duration depends on fuel quality, inner and outer temperature, thermal resistance,

boiler power, manual compliance (installation, heated water flow, water temperature maintenance).

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCEINSTRUCTION

2 BOILER STRUCTURE

Air valve

Draft regulator

Support rod

Air heating chamber

Smoke outlet

Switch valve (only for U boilers)

Telescopic air supply pipe

Fuel loading opening

Air distributor

10.

Fuel

11.

Ash removal opening

12.

Lifting cord with ring

13.

Hook

14.

Hot water pipe

15.

Returning water pipe

16.

Thermometer coupling

17.

Pressure relief valve coupling 1,5 bar.

18.

Bottom

19.

Fire grate

20.

Deflectors

21.

Air injection collector

Figure 1

ATTENTION! It is forbidden to change the construction of the boiler.

2.1 DESCRIPTION OF BOILER STRUCTURE

Boiler –is a steel cylinder, enveloped in a larger diameter steel cylinder, which provides

thermal insulation. Heated water resides between these two cylinders. There is a draft

regulator on the front side of the boiler (2) (see 7.3). The construction has fuel loading (8),

ash removal (11 openings and a smoke outlet (5), as well as water supply (14 - 15),

thermometer (16) and pressure relief valve (17) openings. An air heating chamber is

installed in the upper part of the combustion chamber to improve the combustion quality and

heat transfer (4). The chamber holds a telescopic air supply pipe (7), at the end of which an

air distributor is attached (9).

“U’’ boiler, is designed to burn peat briquettes or coal, has a switch valve (6),

complemented with fire grate (19) and air injection collector (21).

“BIO’’ boiler, designed to burn firewood, pellets, sawdust briquettes or wood chips,

complemented with fire grate (19) and air injection collector (21).

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

At the upper part of the chamber there’s an air opening and air valve (1). On the right

side of the boiler, in front of the door, there is a lifting cord with ring (12) responsible for the

air supply mechanism and hook (13) for fixation of the cord.

3 BOILER PARTS

3.1 AIR INJECTION COLLECTOR

With pellets, briquettes, damp firewood or other wood fuel and its residues we recommend to

use air injection collector. Air injection collector is mandatory when burning coal and peat. “U” and

“BIO” models come with air injection collector.

Air injection collector is plugged into electrical network after igniting and closing the boiler.

Figure 2

3.2 AIR DISTRIBUTOR

Air distributor’s (3 Fig.) purpose is to correctly distribute air in generation zones, located below and next

to air distributor, as well as in combustion zones located near and

above the distributor. Air distributor (9) (Fig. 1) rests upon the

non-flammable edges. The distributor (9) (Fig. 1) must not be

moved during combustion: raising and lowering the air distributor

- it turns and falls deep into combustion area, making the boiler

operate wastefully, wearing of quickly.

When burning fuel a small ring* is used (Fig. 4),

which reduces air supply towards boiler‘s center. When

burning firewood we

recommend attaching the

distrubor so that there is a gap between telescopic pipe and air

distributor, (Fig. 5). When burning coal the additional ring has to be

removed to increase air supply towards the center. We recommend

attaching the air distributor without the gap between telescopic pipe

and air distributor when burning with coal (Fig. 6).

*Only for Universal boilers.

Figure 3

Figure 4

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCEINSTRUCTION

Burning fuel, under air distributor, accumulates ash, but if it does not interfere with combustion

process, on the contrary –protects the part from heat.

Manufacturer retains the right to alter air distributor and improve upon its design

3.3 FIRE GRATE

Use fire grate (19) (Fig. 1); (Fig. 7), when burning pellets, coal, peat and sawdust

briquettes. It needs to be hanged on the hook, located at the bottom of the boiler, inside the

lower doors (11) (Fig. 1). Fire grates (19) (Fig. 1); (Fig. 7) can be found by opening the ash

removal doors (11) (Fig. 1). This part is attached in “U’’ boiler for additional air to go through

the air channel, which is required when burning coal or peat briquettes. In the “BIO’’ boiler, it

is used, to completely burn the formed cinder. Put the fire grate (19) (Fig. 1); (Fig. 7), at the

bottom of universal and “BIO’’ when burning firewood. When buying universal and “BIO’’

solid fuel boiler “Stropuva’’ this part in included. Important to know when changing the fire

grate is that it is composed of two separate parts.

Figure 7

Figure 5

Figure 6

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

3.4 DEFLECTORS

Deflectors (crescents) 2 units (Fig. 8) are designed to increase efficiency of the

boiler. After installing the boiler, we recommend putting deflectors (20) (Fig. 1) through the

upper fuel loading door (8) (Fig. 1) on the bottom edge of the air heating tank.

3.5 SAFETY VALVE 1.5 BAR.

Valve is designed to protect solid fuel boilers from overheating. When water pressure

reaches critical levels, the valve opens up, releasing the heated water into the sewerage, at

the same time adding cold water through the automatic system.

Valve has to be mounted at the upper boiler part (17) (Fig. 1) near the flue (see 6.2; 6.3;

6.4 in the connection diagrams No. 23). Cold water flowing from the water supply is

connected to the automatic replenishment system, which is mounted to heating system’s

water returnline, near the boiler.

Figure 9

ATTENTION! It is necessary to review the function of the safety valve once a month

Figure 8

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

4 TRANSPORTATION AND STORAGE

Loose boilers are allowed to be transported only in horizontal position. During good

weather seasons the boilers can be transported by open transport, otherwise the products

need to be covered. When transporting in vertical position additional safety measures have

to be taken in account to prevent turning or scratching. The boilers are allowed to be

stored in dry areas, which do not contain chemically active substance vapor.

5 BOILER INSTALLATION

Boiler must be installed in premises that meet the governmental requirements. Boiler

installation area has to be at least 215 cm high and must have concrete flooring (at least in

the place where boiler is installed). The room must be isolated from heated living rooms

and have a vertical ventilation channel and a window or an opening in outer wall, so that

air from the outside could easily get into boiler or ventilation channel.

The flue must be clean. It must not have openings into hollow layers or nearby

enclosures. The flue has to be inspected to make sure that it has no openings on the

outside, which would allow parasitic air inside, which would cool the flue and reduce its

traction. All cracks, openings and boiler connection point to the chimney flue must be

sealed. In the case of inner openings of flue to the layers or to nearby shafts which cannot

be sealed, oval or cylindrical liner of stainless steel will have to be used (Rectangular liners

are not as reliable because openings caused by temperature changes appear at the

connections).

Boiler is placed directly on concrete floor. When carrying the boiler, some parts may

experience deformation, therefore after installing the boiler in the flue and closing all the

doors, check if top valve’s uniformly fits with air intake surface and if the door is tight

enough by using candle flame or matches.

5.1 FIRE PREVENTION REQUIREMENTS

Boiler must be placed on non-flammable surface. Boiler metal connection near the

chimney must be made out of metal that is no thinner than 1,5 mm and covered with heat

insulation. Condition of flue must be checked once a month (by visually inspecting it with a

mirror through the cleaning opening), it must be cleaned if need be, because accumulated

resins and soot can catch fire in flue, releasing sparks, causing fire hazard, overheating

and damaging the liner. When using branded flues (made of stainless steel and ceramic)

user instructions must be understood well and requirements met, especially for periodic

maintenance. After cleaning the flue, horizontal flue pipe, which is between boiler and flue,

must be cleaned as well.

5.2 FLUE REQUIREMENTS

Diameter of flue opening can be 10 percent smaller as shown in main technical

specifications, but not larger. The boiler needs a separate flue - no other device can be

connected to it. Flue pipe from boiler to the flue must be horizontal, not longer than 1,5 m

and not shorter than 0,20 m, it must be well sealed at connection areas and covered with

heat insulation. Flue pipe and flue must be cleaned periodically.

TECHNICAL PASSPORT, INSTALLATION AND MAINTENANCE INSTRUCTION

We recommend:

•Install stainless steel liner inside the chimney - correctly installed liner protects the chimney from

condensation and moisture;

•Liner should not significantly reduce the diameter of chimney’s opening;

•Parts of the liner must be well connected between each other (using stainless steel rivets);

•Ash collecting device must be installed at the bottom; collecting device must be installed

15 - 20 cm lower than where flue pipe enters the flue, then it will allow easy access to clean

the flue;

•Space between liner and the walls of chimney, must be filled with inflammable heat insulation

material, at least at the outer part of chimney. Opening must be hermetically plastered and tin

coated at the top while forming a slope (going from the opening towards the edge of chimney);

•In cold attics, chimney must be insulated using fireproof heat insulation material.

5.3 REQUIREMENTS FOR CONNECTION TO THE HEATING SYSTEM

Our boilers can only be installed by qualified technicians who are aware of all

requirements, can guarantee the quality of their work and who review the construction of our

boiler before every installation.

We recommend few simple and proven diagrams. We don’t recommend building

accumulative heat tanks because our boiler is more efficient while working in preservation

mode than while charging accumulative tank in maximum power mode.

Before installing additional elements please read the requirements of manufacturer and act

accordingly:

1. Preliminary flow adjustment nuts must be adjusted according to requirements of heating system

project while observing the requirements of manufacturer of thermo-valves (if not present than at

1,5 or 1).

2. Do not exceed the temperature of floor heating flow with floor heating elements (manufacturer

recommendation 28-35 °C)

3. When building three-way or four-way mixing valves, circulation pump must be connected to

large ring of house heating system. It is recommended to install it on return flow pipe.

4. Do not install boiler and heating elements parallel to tank connected to boiler. (When tank is

connected in parallel position, balance valve is needed.)

5. Retain the temperature which is sufficient for good operation of boiler (70 –85 °C).

6. Stick to the requirements of flue liner manufacturers.

7. Flue closing damper must not be installed. To reduce the traction - use our or other

manufacturers’ automatic air supply damper.

8. Ensure good ventilation in boiler room.

9. Before every installation of our solid fuel boiler, read the technical passport (you may find

helpful additions and recommendations).

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