Alfa Plam TERM -20 Manual de usuario

A.D. METALNA INDUSTRIJA VRANJE

Radnička 1

SOLID FUEL FOR FLOOR HEATING

ALFA TERM -20

This product meets the requirements of the Ecodesign Directive in terms of efficiency and air pollution level, in order to

contribute to the reduction of energy consumption and negative environmental impact.

INSTRUCTIONS FOR INSTALLATION, ADJUSTMENT AND USE

ENG_V.3.0

0.TECHNICAL DATA

HEATING POWER WITH GRATE IN LOWER POSITION:

Rated heating power (wood)

22,9 kW

Heating power of solid fuel emission (wood)

8,7 kW

Thermal power of delivered water (wood)

14,2 kW

HEATING POWER WITH GRATE IN UPPER POSITION:

Rated heating power (wood)

16 kW

Heating power of solid fuel emission (wood)

6 kW

Thermal power of delivered water (wood)

10 kW

REQUIRED FLUE DRAFT

15,5 Pa

DIAMETER OF FLUE EXTENSION

150 mm

HEIGHT FROM FLOOR TO AXIS OF FLUE EXTENSION

690 mm

SOLID FUEL DIMENSIONS:

Width

900 mm

Height

850 mm

Depth

600 mm

OVEN DIMENSIONS:

Width

460 mm

Height

260 mm

Depth

440 mm

FIREBOX DIMENSIONS:

Width

265 mm

Height (min./max.)

264/452 mm

Depth

414 mm

OPENING OF FIREBOX DOOR (width/height)

175/200 mm

CONNECTIONS OF DISCHARGE AND RETURN LINE

R1RS

CONNECTIONS OF THERMO VALVE AND SAFETY VALVE

R1/2RU

CONNECTIONS OF COOLING PIPES

R1/2RS

BOILER VOLUME

14 (l)

HEATING VOLUME WITH GRATE IN LOWER POSITION:

280-380m3(total)

Heating volume of solid fuel emission

100 -135 m

Heating volume of hot water (radiators)

180-230 m

HEATING VOLUME WITH GRATE IN UPPER POSITION:

190-250m3(total)

Heating volume of solid fuel emission

70-95 m3

Heating volume of hot water (radiators)

120-155m3

MAXIMAL OPERATING PRESSURE

1,9 bar

MAXIMAL OPERATING TEMPERATURE

90 C

WEIGHT (gross/net)

186/164 kg

The heating power is shown for stoking dry beech wood with lower heating power Hd=4255W/kg.

DEAR BUYERS!

Thank You for the trust you showed us buying our solid fuel for floor heating. We assure You that You have chosen a quality

and economic product that is a result of many years of experience of this factory in the production of solid fuels and furnaces

for floor heating.

We hope that we fully met Your requirements in terms of design, as well as in terms of the surface of living area that you can

heat.

Please carefully read these instructions before connecting the solid fuel and adhere to every advice provided herein.

-IT IS MANDATORY TO INSTALL A THERMAL DRAIN VALVE TOGETHER WITH THE THERMAL THERMAL PROTECTION OF

THE SO CALLED THERMAL FUSE IN ACCORDANCE WITH THE RECOMMENDATIONS OF THE USER'S MANUAL.

-IT IS MANDATORY TO INSTALL A CONTACT THERMOSTAT IN ORDER TO CONTROL THE CIRCULATION PUMP AT A

MINIMUM RECOMMENDED SET TEMPERATURE OF 57ᵒC.

-IT IS MANDATORY TO USE FIREWOOD WITH A HUMIDITY PERCENTAGE OF LESS THAN 25% OR FIREWOOD THAT HAS

BEEN STORED IN A DRY OPEN SPACE FOR TWO YEARS

-THE MINIMUM INSTALLED POWER OF THE HEATING SYSTEM MUST NOT BE LESS THAN 65% OF THE NOMINAL POWER OF

THE SOLID FUEL AND THE MAXIMUM INSTALLED POWER OF THE HEATING SYSTEM MUST NOT BE MORE THAN 100% OF

THE NOMINAL POWER OF THE SOLID FUEL.

-THE CHIMNEY TO WHICH THE SOLID FUEL IS CONNECTED MUST MEET THE REQUIREMENTS PROVIDED IN THE USER

MANUAL.

-WHEN CONNECTING THE APPLIANCE TO THE CHIMNEY, NEVER USE FLEXIBLE HOSES INSTEAD OF FLUE PIPES.

The contents:

1. PURPOSE....................................................................................................................................................... 1

2. THE RESPONSIBILITY OF THE MANUFACTURER............................................................................................ 1

2.1. THE BASIC CHARACTERISTICS OF THE USER......................................................................................... 1

2.2. THE TRANSPORTATION AND USE OF THE SOLID FUEL –HANDLING ..................................................... 1

2.3. THE RESPONSIBILITY OF THE INSTALLER ............................................................................................. 1

3. APPEARANCE AND STRUCTURE OF A SOLID FUEL WITH A FLOOR HEATING BOILER (fig.1) .......................... 2

4. SAFETY AND RELIABILITY IN SOLID FUEL OPERATION .................................................................................. 2

5. SOLID FUEL PLACEMENT (INSTALLING) ........................................................................................................ 2

5.1. INSTRUCTIONS FOR COMBUSTION AND VENTILATION.......................................................................... 2

6. FLUE INSTALLING.......................................................................................................................................... 3

7. INSTALLING SOLID FUEL IN WATER HEATING SYSTEM ................................................................................. 5

7.1. DISCHARGE AND RETURN LINE (fig.4 pos.1 and 2 and fig.7 and fig.8 pos.3 and 10) .............................. 5

7.2. THERMAL VALVE WITH BUILT-IN THERMAL PROTECTION AND ADDITIONAL ELEMENTS FOR

CONNECTION..................................................................................................................................................... 5

7.2.1. THERMAL VALVE WITH BUILT-IN THERMAL PROTECTION (Fig. 7, Item 13 and Fig. 7a) ................. 6

7.2.2. SLOPE PRESSURE REGULATOR 1/2" WITH MANOMETER (Fig. 7, Item 19 and Fig. 7b) ................... 6

7.2.3. WATER FILTER OF THE BOILER INTAKE (Fig. 7, Item 20)................................................................. 6

7.2.4. WATER FILTER OF THE BOILER OUTLET (Fig. 7, Item 21)................................................................ 6

7.3. SAFETY VALVE (fig. 7 and 8 pos. 5 and fig. 4 pos. 6 ) ........................................................................... 6

7.4. THERMOMETER AND MANOMETER (fig. 1 pos. 16 and 17 and fig. 5) ..................................................... 6

8. PRACTICAL INSTRUCTIONS AND ADVICE FOR HEATING SYSTEM USE .......................................................... 7

9. COMMISSIONING AND STOKING.................................................................................................................... 8

10. GRATE USE IN UPPER AND LOWER POSITION............................................................................................ 9

11. AUTOMATIC REGULATION ....................................................................................................................... 10

12. SECUNDARY AIR REGULATOR.................................................................................................................. 10

13. COOKING, BAKING AND FRYING............................................................................................................... 10

14. HEATING MATERIAL................................................................................................................................. 10

15. CLEANING AND MAINTENACE.................................................................................................................. 11

16. SOLID FUEL STORAGE.............................................................................................................................. 11

17. FAULTS.................................................................................................................................................... 11

18. Overall dimensions of solid fuel ALFA TERM 20 ....................................................................................... 14

19. DETERMINING THE REQUIRED HEAT OUTPUT.......................................................................................... 14

20. TURNING THE APPLIANCE OFF ................................................................................................................ 14

1. PURPOSE

The continually burning solid fuel for floor heating with solid fuel is used for:

-cooking,

-baking,

-heating apartments, individual houses and offices,

-production of hot sanitary water.

It is mostly installed as a solid fuel for floor heating, and it can also be installed for central heating.

2. THE RESPONSIBILITY OF THE MANUFACTURER

Upon publishing this Manual, ALFA PLAM will not accept any civil or legal responsibility, either direct on indirect, due to:

− Accidents occurred due to the non-observance of the standards and specifications stated in this

Manual,

− Accidents occurred due to the improper operation or use of the solid fuel by the user,

− Accidents occurred due to any modifications and repairs not approved by ALFA PLAM,

− Poor maintenance,

− Unpredictable events,

− Accidents occurred due to the use of spare parts that are not original spare parts or that are not

intended for these models of the solid fuel.

The installer of the solid fuel shall take the full responsibility for the installation.

2.1. THE BASIC CHARACTERISTICS OF THE USER

The solid fuel must be used by adult and responsible people.

Make sure that children do not approach the solid fuel, when it is in use, with the intention of playing.

Children must not approach the solid fuel, while in function, with the intention of playing. This appliance can be used by

children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience

and knowledge. if they are supervised by an elderly person who is familiar with the instructions of use. Children cannot carry

out the cleaning and maintenance of the solid fuel, if they are not supervised by an elderly person.

2.2. THE TRANSPORTATION AND USE OF THE SOLID FUEL –HANDLING

During the use of the solid fuel care should be taken that the solid fuel is not leaned forward because the centre of gravity

of the solid fuel is oriented forward.

While moving the solid fuel, which must be carried out absolutely safely, ensure that the forklift truck has a carrying

capacity that is higher than the weight of the solid fuel it should lift. Avoid twitches and abrupt movements.

ALL THE PACKAGING MATERIAL SHOULD BE REMOVED AWAY FROM THE REACH OF CHILDREN AS THE MATERIALS

CONTAINED IN THE PACKAGING MAY CAUSE SUFFOCATION. THESE INCLUDE PLASTIC BAGS, FILMS, STYROFOAM, ETC.

2.3. THE RESPONSIBILITY OF THE INSTALLER

The responsibility of the installer is to perform all the checkups of the flue piping, air intake/supply, as well as all the

solutions required for the installation (incorporation) of your solid fuel.

The responsibility of the installer is to ensure that the solid fuel is in compliance with local regulations applicable in the

place where the solid fuel is installed (incorporated).

The use of the solid fuel must be in accordance with the instructions given in this Manual for use and maintenance, as well

as with all the safety standards prescribed by local legal regulations applicable in the place where the solid fuel is installed

(incorporated).

The installer must verify (confirm):

− The type of the solid fuel that is being installed,

− Whether the room in which the solid fuel is being installed is appropriate, which is expressed as the minimum size of

the room required for the installation as prescribed by the solid fuel manufacturer,

− Instructions of the heat generator manufacturer, related to the requirements of the smoke discharge system

(smoke discharge ducts and pipes),

− The internal cross section of the chimney, material the chimney is made of, cross-sectional uniformity, whether

there are any obstacles and barriers in the chimney,

− The height and vertical extension of the chimney,

− The height above the sea level at the place of installation/incorporation,

− The existence and suitability of a wind resistant protective cover of the chimney,

− The possibility of providing the external air intake and the size of required openings,

− The possibility of the simultaneous use of the solid fuel which is to be installed, together with the other equipment

already existing in that place.

If the results of all the checkups are positive, then the installer may proceed with the incorporation/installation of the solid

fuel. The instructions provided by the solid fuel manufacturer, as well as the fire prevention standards and safety standards

must also be observed.

When the installation is completed, the system must be put into a trial operation for at least 30 minutes in order to check

up all the packing and seals of the system.

When the incorporation and significant details are completed, the installer is obliged to provide the client with the

following:

− The Use and Maintenance Manual issued by the solid fuel manufacturer (if such a manual has not been delivered

with the solid fuel),

− The documents required for the compliance with existing standards.

3. APPEARANCE AND STRUCTURE OF A SOLID FUEL WITH A FLOOR

HEATING BOILER (fig.1)

Figure 1

1. Solid fuel cover

2. Cooking panel (hob)

3. Cooking panel extension

4. Butterfly knob for opening and closing

5. Oven door (oven)

6. Oven thermometer

7. Firebox door

8. Secondary air regulator knob

9. Ashtray door

10. Thermostat knob (combustion regulator)

11. Rod for shaking ash

12. Ashtray (ash box)

13. Ember holder

14. Draving for wood

15. Cover for cleaning

16. Manometer

17. Thermometer

18. Hob cover

19. Thermostat flap

20. Flue extension

21. Cover of opening for cleaning

22. Handrail

23. Grate carrier

24. Additional cover

25. Rod bracke

4. SAFETY AND RELIABILITY IN SOLID FUEL OPERATION

The solid fuel for floor heating is constructed so that it enables maximum safety during operation.

Safety during solid fuel operation is provided in three ways:

- combustion regulator (thermostat) (fig. 1 pos.10), located in the ashtray door, which automatically closes the air intake in

the solid fuel firebox when the set water temperature in the boiler is reached,

-Thermal valve (thermal fuse) (Fig. 7, Item 13 and Fig. 7a) when installed in the heating system serves as a thermal fuse if

the solid fuel becomes overheated,

- safety valve (Fig. 7 and 8, Item 5) which MUST be installed on an R1/2" connection (Fig. 4, Item 4.)

NOTE:

Thermal valve and safety valve are not delivered with solid fuel, while the thermostat is installed on the solid fuel's ash pan

door.

5. SOLID FUEL PLACEMENT (INSTALLING)

- The solid fuel may be installed in the kitchen part or at some other convenient spot.

- An inflammable pad should be put under the solid fuel.

- If the pad is flammable (wood, plastic), place a tin plate that should protrude from the lateral sides with 10cm and 50cm

from the front side.

- The furniture and objects located in front of or close to the solid fuel must not be from flammable material.

If they are from flammable material, then the minimal distance from the solid fuel (Figure a).

- If a cupboard is installed above the solid fuel, the minimum distance between the solid fuel hob and the cupboard should

be at least 70cm.

- Flammable materials (for example wallpapers, frames, doors etc.) from the flue should be at a distance of at least 20cm.

This distance may be reduced if thermal insulation is placed on the flue pipe and the temperature of the surrounding objects

does not exceed 80°C.

- The solid fuel should be installed in horizontal position or slightly elevated from the back side (3-4mm).

Figure a

All minimum safety distances are indicated on the product data plate, DO NOT use lower values than specified (see

INFORMATION ON CE MARKING).

5.1. INSTRUCTIONS FOR COMBUSTION AND VENTILATION

Combustion air must be supplied to the rooms where the range is installed. The room must be constantly ventilated.

An fresh air opening must be located in the lower part of the room and air should enter through it.

A) Supply of combustion air by means of a pipeline through the basement. This connection option leads to a preheating of

the combustion air, which is useful for a good and clean combustion. The installation of pipelines in the basement is simple.

B) Supply of combustion air through the basement. The combustion air is preheated. The basement space must be

separated from the ventilation system of the house and open to the outside. High levels of dust and moisture should be

avoided.

C) Supply of combustion air from above. Air supply from above can only be performed with tested chimney systems.

In this case, it is necessary to calculate the dimensions of the chimney!

D) Supply of combustion air directly from outside. If combustion air is directly supplied through the outer wall, it shall be

only be slightly preheated, which is unfavorable for a clean combustion. In this case there is also risk of condensation!

NOTE: We do not recommend these versions of air supply! However, if you use these options, consult a qualified

professional.

In the room where the heating device is installed, it is necessary to ensure sufficient supply of fresh air. If the windows and

doors are hermetically sealed or if there are air-extracting devices, such as hoods, hair dryers, fans etc., in the room where the

range is installed, combustion air (fresh air) must be supplied from outside. In any case, this should be discussed with a

competent chimney sweep before installing the range.

Supply of fresh air in the room where the range is installed

6. FLUE INSTALLING

Review the unpacked solid fuel and become familiar with the parts of the solid fuel and the accessories, and especially pay

attention to the following:

- The special channels of the firebox door, the ashtray, the cover for cleaning and the hob frame should have pigtails with

no asbestos that seal well and do not allow uncontrolled air intake.

- The combustion regulator (thermostat) with regulation knob (fig.1 pos.10) should properly open and close the regulator

flap (fig.1 pos.19).

- The ember holder (fig.1 pos.13) should be properly placed in its bearing and should be easily open.

The flue connection (plug), that is delivered together with the solid fuel and is placed in the drawer for wood, should be set

and screwed on the openings of the plug carrier (hob) or on the opening on the lateral side. The existing cap must be

previously removed and the same screws for connecting plugs should be used.

WARNING:

If Your flue is not the best or it is with suspicious quality, we recommend that You install a flue connection on the plug

carrier (from the top), and not on the side.

The flue reaches its rated power if the flue draft is 15,5 Pa. We recommend the following flue sizes with which this draft is

obtained:

Solid fuel

Denotement

Rated heating power

(kW)

Flue height (m)

ALFA TERM 20

wood

Dimensions of light surface (mm.)

22,9

145x200

145x145

- Proper flue and meeting other requirements set out in the material that follows are a prerequisite for flawless functioning

of the solid fuel.

- The flue connection should be installed with uplifting.

- Horizontal flue pipe pieces longer then 0,5m should have an uplifting of 10towards the flue.

- The flue extension, flue pipes and the flue must not be narrowed.

- All connections as well as the flue must be well sealed, with no soot and grime in flue pipes.

- The flue should be protected from cold (it should be heat insulated). This especially applies for flues made of sheet metal

and flues built on external walls.

- Flue pipes that do not have thermal insulation and do not stand vertically, must not be longer then 1,25m. Check of the

draft strength is performed by using candles (fig. 2).

slight draft good draft very strong draft

Figure 2

The flue is functioning well if it satisfies the following conditions (fig. 3):

- It protrudes above the roof top (ridge) at least 0,5m.

- It is higher than the neighboring house that is close to the flue, a tree or some other barrier.

- It is in the internal walls of the house or it is well insulated if it is in the external walls.

- The extension should be closely connected to the flue if it is being extended.

- The flue pipe should not be inserted deeply in the flue opening as this reduces the space for smoke output.

- All other unnecessary openings as well as the door for cleaning should be well closed (sealed) so that so called “false” air

would not be created.

AISI 316 steel chimney with double insulated chamber,

made of material resistant to 400°C. Optimal efficiency

100%

Fireproof chimney with double insulated chamber and an

outer lining of lightweight concrete.

Optimal efficiency 100%

Traditional clay chimney with recesses. Optimal efficiency

80%

It is forbidden to use chimney pipes that have a rectangular

internal cross-section with

a ratio that differs from the plan. Modest efficiency 40%

Chimney - positioning and distance

7. INSTALLING SOLID FUEL IN WATER HEATING SYSTEM

Installing of the solid fuel should be performed by a qualified person according to the appropriate project.

The solid fuel is intended for floor and central heating.

It can be installed in closed and open heating system. Adhere to the regulations JUS M.E7.201 and JUS M.E7.202.

Diagrams of closed and open system are shown on fig.7 and fig.8.

The back of the boiler and connections are shown in Fig. 4 where:

Figure 3

- Item 1 is an R1" connection with an outer thread for the flow pipe,

- Item 2 is an R 1" connection with an outer thread for the return pipe,

- Item 3 is an R1/2" connection with an inner thread for installation of the thermal valve safety pipe,

- Item 4 is an R1/2" connection with an inner thread for safety valve installation.

7.1. DISCHARGE AND RETURN LINE (fig.4 pos.1 and 2 and fig.7 and fig.8

pos.3 and 10)

The outlets of the discharge and return water of the boiler are 1" and they must not be reduced, that is, narrowed up to the

first bifurcations. Use steel pipe 1" or copper pipe with external diameter F28mm. (or bigger diameter).

When performing the installation, strictly pay attention to the pipe slopes which should be 0,5% (5mm. per meter of pipe)

and to the system venting (boiler, pipes, radiators).

On the discharge line you may set thermal-manometer although thermometer and manometer are mounted on the front

side.

Set a “by-pass” on the return line with a pump, expansion vessel and valve for filling and draining the system. When

mounting the pump, pay attention to the pump direction.

Warning:

Make a "by-pass" only if there are conditions for so called gravitational heating.

7.2. THERMAL VALVE WITH BUILT-IN THERMAL PROTECTION AND

ADDITIONAL ELEMENTS FOR CONNECTION

To install thermal valve it is necessary to purchase and install:

1. Thermal valve with built-in thermal protection type 544, 1/2", product Caleffi (Fig. 7a) and Fig. 7, Item 13.

2. Slope pressure regulator with manometer 1/2", the same or similar as shown in Fig. 7b and Fig. 7, Item 19.

3. Filter for cold water at the input of the water supply to the thermal valve, Fig. 7, Item 20

4. Filter for hot - boiling water intake of the boiler and water outlet of thermal valve, Fig. 7, Item 21.

Note:

These components are not included with product for central heating you bought!

Installation of thermal valve with built-in thermal protection (Fig. 7, Item 13 and Fig. 7a) with additional elements ensuring

safe operation, such as pressure regulator (Fig. 7, Item 19 and Fig. 7b). Water filter on the boiler intake (Fig. 7, item 20) and

water filter on the boiler outlet in closed central heating system is MANDATORY. This specially refers to a closed system,

when the radiators are submerged and where in case of termination of the pump operation for any reason, the water

temperature in the boiler rapidly increases and overheating occurs very quickly.

In the open central heating system, installation of thermal fuse is not mandatory.

7.2. 1 . THER MAL V ALV E WITH B UILT - I N THER MAL PR OTE CTIO N (Fig. 7 , I t em 13 and Fig. 7 a)

Thermal fuse is installed near the solid fuel, depending on the available space. It can be installed in any position. You

should take into account the direction of cold water intake and hot water outlet from the boiler which is clearly marked on the

valve body.

The thermal fuse probe (Fig. 7, Item 22) is best to place in the thermal valve connection (Fig. 7, Item 18). It can be placed

on the discharge - distribution pipe (Fig. 7, Item 3) but at a distance from the boiler of 500 mm the most or at the highest point

of the boiler before the exhaust pipes.

Seal it with hemp or other sealing material by tightening.

Fig. 7 shows the thermal valve installation diagram.

The device is of one piece with the thermal valve and valve for filling.

Valve opening temperature is 100°C (+0°C/-5°C).

The fluid recommended in the installation is water and glucose antifreeze of 30%.

Note:

At reaction, and valve operation, during fluid cooling in an overheated boiler part of the new fluid is injected into the boiler,

but the part is also ejected from the boiler. It will be poured down the drain. If the antifreeze is in the installation you must

keep in mind that a certain percentage will go out and pour down the drain!

We recommend the thermal valve Caleffi type 544, 1/2" as shown in Figure 7a.

7.2. 2 . SLOP E PRE SSURE R EGU LATO R 1/2" WITH MA NOME TER (F ig. 7, Item 19 and F i g. 7b)

When installing the thermal valve it is required to mount the slope pressure regulator as shown in Fig. 7, Item 19. The

pressure that is maintained by pressure regulator must be set at a higher pressure than the pressure that is in the heating

system. If you do not have a higher water pressure of at least 0.8 bar compared to the pressure in the heating system thermal

valve will not work or cannot inject cold water into the boiler that needs to be cooled.

Pressure regulator should be set to 2.8 to 3 bars.

You should take into account the direction of placing the slope pressure regulator

7.2. 3 . WATE R FILT ER O F THE BO ILE R I NTAK E (Fig. 7 , It em 20)

In front of the slope pressure regulator on water intake from water supply line it is necessary to install a filter that will clean

the water from solid objects, primarily of sand, which can damage the tap seal or seals of the thermal valve and the slope

pressure regulator.

This filter does not need to be resistant to high water temperatures due to cold water that flows through.

7.2. 4 . WATE R FILT ER OF TH E BOI L ER O U TLE T (Fig. 7, Ite m 2 1)

It is required to install the filter on the boiler outlet which will clean the hot - boiling water from dirt and solid objects that

can damage the tap seals, or seals of the thermal valve.

This filter must be resistant to water temperatures up to 150°C.

NOTES:

- After the completion of thermal valve activation, checking the pressure in the installation and filling the system with cold

water is mandatory.

- In cases where antifreeze is used, after filling the installation with water it is required to check percentage content of

antifreeze in a mixture of water and antifreeze!

- To avoid elimination of the antifreeze agent solution from the installation, it is best to have backup battery supply of the

pump with an inverter.

7.3. SAFETY VALVE (fig. 7 and 8 pos. 5 and fig. 4 pos. 6 )

On the back side of the boiler under the hob, a connection R1/2" is welded (fig.4 pos.6) in which you are OBLIGED to set a

safety valve. The safety valve should be between 2,5 to 3 bar. It can be installed directly on the terminal or at a distance from

the solid fuel of 1m the most, provided that there is no block valve between the boiler and the safety valve.

In an open heating system, the safety valve is not put normally, but we advise that you put it as one more type of insurance

of the boiler and the system (due to unforeseen circumstances).

WARNING:

If the safety valve is not set as previously explained, the guarantee ceases.

7.4. THERMOMETER AND MANOMETER (fig. 1 pos. 16 and 17 and fig. 5)

On the solid fuel itself, on the additional cover (fig.1 pos.24) between the firebox door and the ashtray door, thermometer

and manometer are mounted (fig.1 pos.16 and pos.17, and fig.5) so they do not have to be placed on the installation.

The thermometer pos. 17 shows the temperature of water in the boiler (operating temperature) in °C.

The manometer pos. 16 shows the water pressure in the boiler, that is, in the system, in bars.

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