Stropuva S7, S40, S7 BIO, S10, S10 BIO Technical Passport Installation And Maintenance Instructions

...

Solid fuel boiler for

central heating

STROPUVA

TECHNICAL PASSPORT

INSTALLATION AND MAINTNCE

INSTRUCTIONS

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

Contents

1. TECHNICAL SPECIFICATIONS ....................................................................................... 3

1.1 MAIN TECHNICAL SPECIFICATIONS ........................................................................... 3

2. STRUCTURE OF BOILER ...............................................................................................5

2.1 DESCRIPTION OF BOILER STRUCTURE ....................................................................6

3 PARTS OF BOILER ........................................................................................................... 6

3.1 AIR INJECTION COLLECTOR (Figure 2) ......................................................................6

3.2 AIR DISTRIBUTOR WITH BURNING CHAMBER STABILIZER ...................................7

3.3 FIRE GRATE (Figure 4) ..................................................................................................8

3.5 DEFELCTORS (Figure 5) ............................................................................................... 8

3.5 FLUE RING (Figure 6) .................................................................................................... 9

3.6 SAFETY VALVE (1.5 BAR) ............................................................................................. 9

4. TRANSPORTING AND STORAGE ................................................................................10

5. INSTALLATION OF BOILER ..........................................................................................10

5.1 FIREFIGHTING REQUIREMENTS ..............................................................................10

5.2 FLUE REQUIREMENTS ..............................................................................................10

5.3 REQUIREMENTS FOR CONECTING TO HEATING SYSTEM ................................... 11

6. DIAGRAM OF HEATING SYSTEM ................................................................................12

6.1 DESCRIPTION OF DIAGRAM OPERATION (Figure 8) ...............................................13

6.2 diagram of connecting ,,Stropuva” boiler to other boiler, water heater and ﬂ oor

heating ................................................................................................................................ 14

6.3 diagram of connecting ,,Stropuva” boiler to other boiler, water heater, radiators

and ﬂ oor heating ................................................................................................................. 15

6.4 diagram of connecting ,,Stropuva” boiler to other boiler, water heater, radiators ......... 16

7. FIRING OF BOILER AND ADDING FUEL ...................................................................... 17

7.1 FUEL IN BOILER BURNS MOST EFFICIENTLY ......................................................... 17

7.2 RECOMMENDATIONS FOR FIRING OF UNIVERSAL BOILER ................................18

7.3 SETTINGS OF DRAFT REGULATOR (Figure 13) ....................................................... 19

7.4 ASSESMENT OF BOILER OPERATION .....................................................................19

8. REQUIREMENTS OF SAFETY EQUIPMENT ...............................................................20

7.5 CLEANING AND MAINTENANCE OF BOILER ...........................................................20

9. RISK ASSESSMENT ...................................................................................................... 21

9.1 DANGERS OF HEAT ...................................................................................................21

9.2 DANGERS OF PRESSURE ......................................................................................... 22

9.3 POSSIBLE POISONING ..............................................................................................22

9.4 REQUIRMENTS FOR CONECTING ELETRICAL PART ............................................. 22

10. ATTACHEMENTS ......................................................................................................... 22

10.1 ELECTRONICAL CONTROLLER ..............................................................................22

10.2 PELLET BURNER ...................................................................................................... 24

11. PACKAGE CONTENT ..................................................................................................25

12. WARANTY CONDITIONS OF PRODUCT ...................................................................25

13. WARRANTY CERTIFICATE ......................................................................................... 26

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

1. TECHNICAL SPECIFICATIONS

Solid fuel water heating boilers “Stropuva” (further on – boiler) are designed for heating of

premises with central heating system, radiators, boiler for heating of water for household or

ﬂ oor coil-pipe or heater or all the mentioned. System can have natural or forced circulation.

System can use open or closed system. Boiler is sold with draft regulator, which is patented by our company.

“STROPUVA” produces three types of boilers:

•For ﬁ rewood (ﬁ rewood);

•“U” universal (ﬁ rewood, coal, peat and sawdust briquettes, pellets, wood chips) ;

•“BIO” (ﬁ rewood, sawdust briquettes, pellets, wood chips);

and four different capacities 7 kW; 10kW; 20 kW; 40 kW. Boilers “STROPUVA” can be used

to heat premises with from 20 to 400 m

of heated space.

1.1 MAIN TECHNICAL SPECIFICATIONS

Used fuel: ﬁ rewood, wood residues, sawdust briquettes, peat briquettes, coal and pellets.

Recommended dampness of fuel up to 30 %

Model of boiler

S7 S10 S20 S40

BIO

S10 BIO

S20 BIO

S40 BIO

S10US20US40

Power (kW) * 7 10 20 40

7 10 20 40 10 20 40

Heated space ( m

) ** 20-70 50-100 100-200 200-400 20-70 50-100 100-200 200-400 50-100 100-200 200-400

Fuel capacity (dm

) 90 150 210 360 90 150 210 360 135 230 320

Maximum amount of ﬁ rewood (kg) 15 25 50 80 15 25 50 80 25 50 80

Maximum amount of pellets (kg) - - - - 50 80 130 220 80 130 220

Maximum amount of briquettes (kg) - - - - 20 30 60 100 30 60 100

Maximum amount of coal(kg) - - - - - - - - 75 130 220

Duration of burn with one load of

ﬁ rewood, h. Min. mode.

(according to laboratory tests) Max.

mode. ***

5,6

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

Duration of burn with one load of

briquettes, h. Min. mode.

(according to laboratory tests) Max.

mode. ***

- - - -

50 10

72 14

ATTENTION! Before installing and using this boiler please read this instruction carefully.

It will help you install it correctly and use it effectively as possible also to prevent possible accidents.

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

Model of boiler

S7 S10 S20 S40

BIO

S10 BIO

S20 BIO

S40 BIO

S10US20US40

Duration of burn with one load of

pellets, h. Min. mode.

(according to laboratory tests) Max.

mode. ***

- - - -

72 1496

96 2496 2496 2496 2496

Duration of burn with one load of coal,

h. Min. mode.

(according to laboratory tests) Max.

mode. ***

- - - -

- - - - 130 32130 32130 27

Length of ﬁ rewood (cm) 35 35 45 55 35 35 45 55 35 45 55

Water amount in boiler ( l ) 15 22 40 52 15 22 40 52 22 40 52

Efﬁ ciency (%) 86,3 86,3 86,3 86,3 86,3 86,3 86,3 86,3 86,8 86,8 86,8

Installed pressure protection valve (bar) 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5

Flue draft (Pa) 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20 10÷20

Flow of heated water max. (l/h) 200 250 500 1000 200 250 500 1000 250 500 1000

Water temperature inside of boiler (

C) 85 85 85 85 85 85 85 85 85 85 85

Minimum width of ﬂ ue opening (cm

) 150 200 250 330 150 200 250 330 200 250 330

Diameter of ﬂ ue (mm) 160 180 180 200 160 180 180 200 180 180 200

Distance from the bottom of boiler to

ﬂ ue (mm)

991 1413,5 1550 1549 991 1413,5 1550 1549 1494 1673,5 1664

Dimensions, (mm)

1330

450

1900

450

(1900)

2100

560

(1900)

2100

680

1330

450

1900

450

(1900)

2100

560

(1900)

2100

680

1900

450

(1900)

2100

560

(1900)

2100

680

Weight (kg) 100 185 231 315 100 185 231 315 196 246 333

*Power depends on quality of fuel. Power depends on time: at the beginning of burning

power output is higher than indicated in a table, boiler puts out the smoke that is hotter than 300 0C, therefore raisin residues burn out, ﬂ ue gets warmed up and draft increases (in some

models, direct channel to ﬂ ue is opened). While fuel burns, power of boiler decreases, because

the surface of heat dissipation increases and draft decreases, but when a house becomes warm

the power is sufﬁ cient and additional valve is opened in order to further decrease the power of

boiler.

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

2. STRUCTURE OF BOILER

pav.1

1. Air valve

2. Draft regulator

3. Support rod

4. Air heating chamber

5. Smoke removal opening

6. Switch valve

7. Telescopic pipe of air injection

8. Door for loading of fuel

9. Air distributor with combustion chamber stabilizer

10. Fuel

11. Door for ash removal

12. Lifting cord with ring

13. Hook

14. Pipe of hot water

15. Pipe of return water

16. Socket for thermometer

17. Socket for pressure safety valve 1,5 bar

18. Bottom

19. Fire grate

20. Deﬂ ectors

21. Air injection collector

**Power of boiler is selected according to heated space. For example if in Stropuva S20

solid fuel boiler built in 200m

building one fuel load burns 24 hours than one load of ﬁ rewood in

Stropuva S40 solid fuel boiler burns almost for 48 hours (35-40 hours). Solid fuel boiler Stropuva

S10 could be used, but warming up of building would take longer and fuel load would need to

be added 2-3 times in 24 hours.

***Duration of burn of one load depends on the quality of fuel, inside and outside temperature,

thermal resistance, boiler power, adherence to recommendations of user manual (boiler

installation, ﬂ ow of heated water, maintenance of water temperature).

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

Figure 1

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

2.1 DESCRIPTION OF BOILER STRUCTURE

Boiler is cylinder made of steel, enveloped in a cylinder of steel of bigger diameter and this whole construction is thermally insulated. Heated water resides between these two cylinders. At the front part of boiler there is draft regulator (2) (more information in 7.3). Construction has

openings for loading of fuel (8) and removal of ashes (11) as well as ﬂ ue for smoke removal

(5). Also there are openings for water supply pipe (14 – 15), thermometer (16) and pressure

safety valve (17). At the top part of combustion there is air pre-heating chamber (4) chamber for enhancement of burn quality and heat transfer. Telescopic air supply pipe (7) for attaching air distributor and combustion chamber stabilizer, ﬁ ts into this chamber (9).

“U” boiler is designed for peat briquettes or coal; it has switching valve (6) and is supplied with ﬁ re grate (19) and air injection collector (21).

“BIO” boiler is designed for ﬁ rewood, pellets, and sawdust briquettes or wood chips. It is supplied with ﬁ re grate (19) and air injection collector (21).

At the upper part of chamber there is opening for air and air valve (1). On the right side of the boiler, in front of the door, there is a cord and ring (12) for lifting of air supply mechanism

and ﬁ xation hook (13).

Purpose of air distributor with stabilizer of combustion chamber (9) is to distribute air correctly into generation zones, which are under and besides the air distributor, also in

burning zones. Air distributor with combustion chamber stabilizer (9) rests on ﬁ rewood

which is on the sides and is not reaching high temperatures.

Distributor with stabilizer of combustion chamber (9) shouldn’t be moved during the burning: if air distributor is lifted and lowered again, it rotates and falls deep into point of burning, than

boiler operates inefﬁ ciently and the lifespan of its parts is shortened.

3 PARTS OF BOILER

3.1 AIR INJECTION COLLECTOR (Figure 2)

With pellets, briquettes, damp ﬁ rewood 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 the boiler and closing the door.

Figure 2

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

3.2 AIR DISTRIBUTOR WITH BURNING CHAMBER STABILIZER (Figure 3)

Burning chamber stabilizer is mounted (ﬁ g. 3), on the smallest part of telescopic air supply pipe (7) (ﬁ g. 1), it is integral in new boilers. We also developed units for repairs that consist of two parts. If telescopic air supply pipe (7) (ﬁ g. 1) has three holes, then stabilizer is locked in third

hole with a pin, if it has only one hole, additional hole must be drilled 55mm from the existing

hole. After mounting the stabilizer, air distributor can be mounted (ﬁ g. 3). When burning pellets, small ﬁ rewood, distributor must be mounted on middle hole, so that space between the end of air supply pipe (7) (ﬁ g. 1) and distributor would be reduced to 5 – 7 mm.

A) We recommend using distributor with combustion chamber stabilizer (ﬁ g. 3) when burning ﬁ rewood, briquettes. This burner is included with ﬁ rewood boilers.

*Developer retains the right to alter and improve the construction of air distributor.

B) We recommend using distributor with combustion chamber stabilizer (ﬁ g. 3) when burning ﬁ rewood, briquettes and pellets. We also recommend using air injection collector (ﬁ g. 2) with this

burner. This distributor is used with “U” and “BIO” boilers. *Developer retains the right to alter and improve the construction of air distributor.

C) We recommend using distributor with combustion chamber stabilizer (ﬁ g. 3) when burning peat and coal. We also recommend using air injection collector (ﬁ g. 2) with this burner. This

distributor is used with “U” boilers.

*Developer retains the right to alter and improve the construction of air distributor.

When fuel burns, ash gather under air distributor with combustion chamber stabilizer (ﬁ g. 3),

but it does not obstruct the burn, on the contrary – it protects the part from heat. Do not lift air

distributor with combustion chamber stabilizer (ﬁ g. 3) when it is not necessarily needed,

this way you will increase its lifespan!!!

Figure 3

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

3.3 FIRE GRATE (ﬁ gure 4)

Use ﬁ re grate (19) (ﬁ g. 1); (ﬁ g. 4), when burning pellets, coal, peat and sawdust briquettes. After opening the bottom door (11) (ﬁ g. 1), it needs to be hanged on hooks at the bottom of boiler. You will ﬁ nd ﬁ re grate (19) (ﬁ g. 1); (ﬁ g. 4) inserted, after you open the bottom door for ash removal (11) (ﬁ g. 1). In “U” boiler this part is used to get additional air inside through the channel at the bottom of boiler, which is needed when burning coal and peat briquettes. In “BIO” boiler it is needed to completely burn formed cinder. Put the ﬁ re grate (19) (ﬁ g. 1); (ﬁ g. 4), on the bottom

of universal and “BIO” boiler when burning wood. This part is included with “U” and “BIO” solid fuel boilers “Stropuva”.

3.5 DEFELCTORS (ﬁ gure 5)

Deﬂ ectors (crescent) 2 pcs. (ﬁ g. 5) are designed to increase the efﬁ ciency of boiler. After mounting the deﬂ ectors (20) (ﬁ g. 1) we recommend putting it in through upper door, for loading fuel, (8) (ﬁ g. 1) on the bottom edge of inner air preheating tank.

Figure 4

Figure 5

TECHNICAL PASSPORT INSTALLATION AND MAINTENANCE INSTRUCTIONS

3.5 FLUE RING (ﬁ gure 6)

If there is excessive draft in boiler, use valve (ﬂ ue ring) (ﬁ g. 6) to add additional air from boiler room. Flue ring is on the opening used for boiler smoke removal (5) (ﬁ g. 1). Flue hole must be open in order to reduce draft and vibration. In order to increase draft – use ﬂ ue ring (ﬁ g. 6) to

close the hole.

3.6 SAFETY VALVE (1.5 BAR)

Valve is designed to protect solid fuel boilers from overheating. Valve opens when pressure of water reaches dangerous value, then hot water is released in to sewerage, at the same time, cold water from water supply is added through automatic system.

Valve must be mounted at the upper part of boiler (17) (ﬁ g. 1) near the ﬂ ue (see 6.2; 6.3; 6.4;

in connection diagrams No. 23). Cold water from water supply system is connected to system of automatic water addition, which is connected to water return line of heating system, near the boiler.

ATTENTION! Operation of safety valve must be inspected once a month.

Figure 6

Figure 7

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Stropuva S7, S40, S7 BIO, S10, S10 BIO Technical Passport Installation And Maintenance Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual