Jinova MTP 50, MTP 37, MTP 25, MTP 85, MTP 100 Technical Documentation Manual

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Page 1

Do Žlábku 733, 514 01 Jilemnice

Subject: MTP Technical documentation Page No./No. of pages: 1/20

Approved by: Date: 12. 2. 2018

TECHNICAL DOCUMENTATION FOR USERS OF AIR HEATERS

MTP, MTPAL, MTP-V

Contents:

Page: 2 Warranty card 3 Certificate of product quality and completeness. (Unit test report) 5 Technical conditions 11 Installation, operating and maintenance instructions 17 Related documents 17 List of warranty and post-warranty repair services 18 Optional equipment

Warranty card

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The manufacturer is responsible for defects in the product that have been proven to be incurred in the warranty period by a faulty construction or faulty design. The warranty does not apply to cases where the user

- makes adjustments or changes to the product

- violently breaks the product

- connects the product with incorrect values (e.g. lower amount of air, higher heat output)

- chooses a different working environment for the product than that recommended by the manufacturer in the enclosed information

- does not comply with the technical conditions supplied with the product

Warranty period: 24 months from the date of delivery of the product, subject to all of the above stated conditions (instructions and recommendations of the manufacturer).

The manufacturer reserves the following as a warranty condition - commissioning and checking by a qualified worker of an assembly company and completing and signing the

“Heat exchanger unit commissioning protocol”, which is an integral part of this warranty

card. If it is contractually agreed in some cases during the sale, the manufacturer reserves commissioning or checking by their own personnel as a warranty condition. The warranty can also be contractually conditioned by regular inspections by manufacturer’s personnel.

Product name: AIR HEATER

Type/design: MTP

Combustion chamber used: BK

Serial number:

Product delivery date confirmed by the Seller:

Product commissioning date confirmed by the Supplier:

___________________________________________________________________________

When you submit a claim, please, provide this warranty card together with the heater commissioning protocol with confirmed participation of a worker of the manufacturer

during start-up of the equipment and together with the protocol on setting up the burner to

the prescribed values.

The warranty card is invalid without confirmation of product commissioning!

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Subject: MTP Technical documentation Page No./No. of pages: 3/20

AIR HEATER COMMISSIONING PROTOCOL

TO BE FILLED IN BY A QUALIFIED WORKER OF THE ASSEMBLY COMPANY

TYPE: MTP Ser. No.:

Compliance with all installation conditions according to this “MTP Technical

documentation” has been checked. Installation instructions (installation, safety distances,

connection of the air-conditioning circuit, smoke flue connection including condensate drainage, assembly of burner and electrical installation).

In particular, connection of all thermostats has been checked:

T1 (safety) - switches off the burner feed phase T2 (operational) - switches off the burner T3 (operational) - switches the fans and ensures their slowdown (cooling down the

heat exchanger chamber) after switching off the unit

The amount of air flowing through the heat exchanger chamber has been checked.

Overall installation (quality, completeness, craftsmanship) has been checked.

For heaters equipped with bypass, the following has been checked:

- control of valve actuators (in particular the direction of rotation)

- no valve position causes overheating of the heat exchanger and thus activation of the operating thermostat

- there is no excessive condensation

For heaters equipped with a fan, the following has been checked:

- correct direction of rotation of the fan

- correct belt tension, if it is a belt drive

The stated heater has been installed and connected according to the “Technical documentation” of the manufacturer and is capable of continuous operation.

The commissioning and check has been carried out by:

Name: ................................ signature: .............................. date:.........................

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Certificate

of product quality and completeness

Unit test report

By this certificate the manufacturer confirms that the properties of the product,

name: AIR HEATER

type/design: MTP

serial number: ............................................

basic tech. data: Nominal heat input ........................................ kW

Nominal heat output ..................................... kW

Nominal air flow ............................................ m3/h

External air pressure ...................................... Pa

Nominal electrical input................................. kW

Weight............................................................ kg

Protection IP Voltage 3x400 V + N + PE 50 Hz

Electric engine used: .....................................

V-belt: ...........................................................

comply with the test regulations:

..................................................................................................

date:

technical control department:

___________________________________________________________________________

production plant director

Ing. Václav Šubrta

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TECHNICAL CONDITIONS

INSTRUCTIONS FOR INSTALLATION, OPERATION

AND MAINTENANCE OF AIR HEATER MTP,

MTPAL, MTP-V

1. Use:

Air heaters using gaseous fuels are used to heat the air for purposes of heating or ventilation with heating and are designed for separate operation or for installation in airconditioning systems, air-conditioning units and other applications.

2. Function description

The basis of the heaters MTP, MTPAL, MTP-V is a closed air-flue gas exchanger which consists of a combustion chamber and a tube heat exchanger. The air-conditioning and combustion circuit of the air heater are therefore separated. The heater heats the air conveyed by the fan that is or is not part of the heater (depending on the type). The air is sucked directly from the heated space or via the air-conditioning piping. The air is heated while circling around the combustion chamber and the tube heat exchanger and being heated it flows through the heater to its discharge section. The burners are always pressure burners and only separately certified highquality burners are used. The burner is designed according to the fuel used, its inlet pressure and the regulation requirement. Flue gases are drawn from the combustion chamber by a chimney (the chimney is not a part of the heater).

3. Type designation:

Produced heaters are marked with a type designation, the meaning of which is as follows:

MTP 50 MTPAL 50 MTP-V 50

designation of the heater

type size (according to the table of basic parameters)

MTP 25, 37, 50, 65, 85, 100, 125, 150, 175, 225, 300, 350, 400, 525, 650, 850, 1000, 1500, 2000, 2500

MTPAL 50, 80, 150, 200, 300, 500, 700, 900, 1200 MTP-V P1, P2, 25, 37, 50, 65, 85, 100, 125, 150, 175, 225, 300, 350, 400, 525,

650, 850, 1000, 1500, 2000, 2500

4. Design description:

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1. Heat exchanger

The heat exchanger used in the MTP, MTP-AL and MTP-V air heaters is a weldment consisting of a cylindrical or a drop-shaped combustion chamber and a subsequent tube heat exchanger. According to the size, heat exchanger is made as a three-tier (up to MTP

400) and four-tier for larger sizes. The combustion chamber is reversing, for the heat exchangers of P1 and P2 type, it is a one-way chamber. The heat exchangers are manufactured according to the thermal load and according to the customer requirements from the materials of the class 11, stainless steel and refractory materials.

The heat exchanger is circled around and cooled down from outside by the air that is thus heated.

2. Heat exchanger unit

The heat exchanger is located in a cabinet that is made of frame structure and casing, or can be made from components according to the customer requirements, but must always be made of insulated sandwich panels with a minimum thickness of 20 mm. Typically, the casing consists of a perimeter construction made from modular profiles filled with panels, possibly also a frameless casing structure. The combustion chamber is anchored in the casing by means of the heat exchanger legs, which are free due to the dilatation, and by means of a burner flange for fixing the burner and the chimney. The chimney serves for removing the spent fuel from the combustion chamber through a chimney outlet, usually in the rear wall of the heater, the heater with the heat exchanger 525 and higher, on the burner wall, optionally on another side.

In most cases, the heater is equipped with a bypass, which is a separate part in the casing outside the space that is occupied by the heat exchanger and is fitted with a valve. A portion of the heated air can then flow through the bypass completely outside the heat exchanger, however, in such a way that the amount of air passing through the heat exchanger is not less than the amount of air required for maximum heating on the heat exchanger (30-55 °C unless otherwise specified). Each heat exchanger unit of the heater is fitted with a triple thermostat (T1, T2, T3) at the output of the heated air, which must be connected to the electrical control circuits of the complete air heater and which ensures its safe operation mode (for more information see instructions for installation/electrical installation). The air is divided by the walls into the heat exchanger and bypass area. In the heat exchanger area, there are also guide plates which direct the air between the heat exchanger tubes and an aperture which provides air inlet for sufficient cooling of the combustion chamber.

3. MTP-V Specifications:

MTP-V are gas air heaters without their own fan that are designed for installation into the air-conditioning unit or air-conditioning piping. They do not contain an air fan, but it is always part of the system and the heater cannot be operated without it. The MTP-V heaters cover the required dT heating range for air-conditioning heating from the outside air heating to the required temperature to small air heating to e.g. heat recovery.

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The basis of the MTP-V heater is always the BK heat exchanger selected according to the required output; the required output is then the nominal output of the heater. The heat exchanger table is below. The heat exchanger may be extended or shortened according to the spatial disposition. Depending on customer requirements or specific needs, the heat exchangers are made of steel of class 11 and stainless-steel materials. Each heater has a nominal amount of air determined. With less air, the heater cannot be operated for the required output. The optimal air dT passing through the heat exchanger is c. 30 °C, so as to avoid unwanted excessive condensation, so that the flue gas temperature is relatively low, and the resistance of the heat exchanger on the side of the air is not too high. Basically, the bypass is designed to keep “excess” heated air in the heater out of the heat exchanger. The specific technical parameters of the supplied heater are always included in this

documentation in the “Certificate of product quality and completeness” and on the

nameplate.

Table of MTP-V technical parameters

maximum heat

output

standard

design

minimum air

flow standard

design

m3/h

2400

3300

2700

4600

100

130

7100

150

180

9800

225

300

16300

400

500

27100

525

650

35300

650

790

42900

1000

1100

59700

4. MTP Specifications:

MTP heaters are always supplied as a composition of a heat exchanger unit and radial fan. The heat exchanger unit is not fitted with a bypass. The frame consists of welded steel profiles, usually in a compact monoblock design.

MTP air heaters are delivered in an upright or horizontal design. Both versions can be equipped with a wide range of accessories such as e.g. blind shutters, filters, elastic connections, etc. that do not affect the function of the gas heater.

The heaters are supplied with fans and engines as required by customers with the required disposition pressure for connection to air-conditioning piping.

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The casing is made with sandwich panels with mineral insulation of 30 mm. Surface treatment of panels is made of galvanized sheet metal. At customerʼs request, the heater can be supplied in any desired colour according to the RAL sampler. The design for the outdoor environment is supplemented with a cover for the burner, or with a roof. Compared to the standard technical parameters stated below, the parameters can be adjusted according to the application requirements by using the appropriate engines and by adjusting the amount of air and heat output, always only within the parameters of the corresponding heat exchangers and MTP-V. The specific technical parameters of the supplied heater are always included in this documentation in the “Certificate of product quality and completeness” and on the nameplate. MTP air heaters can be equipped by the manufacturer with an electrical switchboard located on the heater or designed for a stand-alone installation that provides control of the burner, engine protection and start up and triple thermostat safety functions. Table of MTP technical parameters

TYPE

Max.

heat

output

Air flow

Output

pressure

Consumption

- natural gas

Nominal input

Weight

m3/h

MTP 25

2200

40 - 300

3.11

0.50 - 1.00

220

MTP 37

3000

40 - 260

4.87

0.50 - 1.00

220

MTP 50

4000

40 - 340

6.47

0.70 - 1.50

310

MTP 65

5100

40 - 260

8.06

1.15 - 1.90

310

MTP 85

100

6600

40 - 300

10.75

1.15 - 2.60

450

MTP 100

120

7500

40 - 280

12.94

1.15 - 2.60

450

MTP 125

150

10000

40 - 300

16.13

1.60 - 3.60

585

MTP 150

175

12000

40 - 340

18.82

2.70 - 4.50

590

MTP 175

200

14000

40 - 360

21.50

2.70 - 4.50

800

MTP 225

260

18000

40 - 260

29.97

4.70 - 6.20

803

MTP 300

350

24000

40 - 380

37.63

6.50 - 12.00

1100

MTP 350

400

28000

40 - 450

43.00

8.50 - 16.00

1120

MTP 400

465

32000

40 - 280

49.98

12.00 - 16.00

1200

MTP 525

600

41000

40 - 250

64.51

17.00 - 20.50

2300

MTP 650

750

52000

40 - 280

80.64

17.00 - 24.00

2800

MTP 850

990

62000

40 - 300

106.43

25.00 - 33.00

5700

MTP 1000

1160

73500

40 - 300

124.74

25.00 - 33.00

6000

5 MTP-AL Specifications:

MTPAL air heaters are produced in block and chamber designs. They are produced only in a horizontal design on the base frame.

The gas heating components are always equipped with a ventilation bypass with a valve. The fans are on a common frame with the engine and stored on the vibration isolators. The units are supplemented by a basic range of pocket filters, valves, mixing chambers and other common accessories that do not affect the function of the gas heater. The unit frames are made from modular aluminium profiles of a square cross section with a side length of 50 mm. The casing is done with respect to the maximum thermal

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insulation of the unit from sandwich panels filled with mineral wool of thickness of 45 mm. Panels are reinforced with glued and riveted profiles for firmness and durability. Panels are attached into the aluminium frames according to their position with rivets, bolts and nuts, plastic fasteners or hinges and handles. In addition to standard highquality seals, the panels without the need for access regarding the outdoor units are cemented. Panels can be supplied powder-coated in any colour according to the RAL sampler at the customerʼs request and for an extra charge. All parts of the unit are produced as standard in silicon-free design. The heaters are supplied in designs for indoor and outdoor use. The fan component of the heaters is equipped with radial fans or fans with a free impeller, with the amount of air and heat output as required by the customer. The engines are together with the fans located on an integral frame. The specific technical parameters of the supplied heater are always included in this

documentation in the “Certificate of product quality and completeness” and on the

nameplate. MTPAL can be equipped with a wide range of accessories such as e.g. blind shutters, filters, recuperators, cooling exchangers, elastic connections etc. that do not affect the function of the gas heater.

Table of MTP technical parameters

parameters/type

150

200

300

500

700

900

max. output [KW]

140

200

275

460

700

900

max. flow at 300 Pa

5200

8800

12500

18000

25000

36000

48000

60000

standard engine [KW]

1.1 - 3

2.2 - 4

3 - 5.5

4 - 7.5

5.5 - 11

11 - 18.5

15 - 30

22 - 30

P1-37

37-65

37-100

37-150

37-225

37-400

37-525

37-650

cross section width [mm]

900

1100

1350

1450

1600

2000

2400

2800

cross section height [mm]

700

900

1000

1250

1500

1650

2100

2200

6. Working conditions and conditions for installation

The function of the air heater can only be guaranteed if the following working conditions are met:

(a) compliance with the following parameters:

- nominal heat input (kW)

- nominal air flow (m3/h)

- external resistance must correspond to the proposed value

- input temperature (for standard design up to 40 °C, unless otherwise specified)

- prevention of the chimney effect and return flow

- correct connection of thermostats T1, T2, T3

b) compliance with the environment

The air heaters are made in indoor or outdoor designs.

- the indoor design with IP 40 electrical protection can be used in an ordinary basic

environment.

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- the outdoor design with IP 43 electrical protection is designed for outdoor

environment. The burner and the triple thermostat are provided with appropriate covers to protect these devices against atmospheric precipitation.

- with this design, prevention of the possibility of sucking up coarse dirt (e.g. leaves

from trees).

c) no flammable materials can be stored in the area of the air heater - fire hazard!!!

The heater interference suppression corresponds to ČSN 334200.

d) if the air heater is supplied in a design without the fan or without electrical installation and MaR system, it is necessary to ensure their connection and installation according to the applicable standards for gas equipment, thus in particular 2016/426.

7. Technical supervision and inspection

Technical supervision and inspection during production as well as acceptance are performed by the technical committee of the manufacturer. Furthermore, the manufacturer reserves participation of their representative in putting the heater into service as the warranty condition.

8. Marking

On each heater there is a non-removable label that contains:

a) manufacturerʼs designation b) product identification number c) type designation d) serial number e) year of production f) nominal heat input (kW) g) nominal heat output (kW) h) nominal air flow (m

/h)

i) external air pressure (Pa) j) nominal electrical input (kW) k) weight (kg) l) voltage system (3x400 V + N + PE 50 Hz) m) protection n) destination country

In addition, on each heat exchanger unit there is a label with the following text:

“This heater must be installed in accordance with the applicable instructions and its use is permitted only in a well-ventilated area. Please read the instructions before installing and

using it.”

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9. Testing

Type tests These tests are carried out by the Engineering Test Institute, Public Enterprise in Brno, test room 202, Hudcova 56b, 621 00 Brno.

Production tests These tests are carried out at production plant JINOVA s.r.o., Do Žlábku 733,

Jilemnice on each produced heat exchanger unit.

The following tests and checks are carried out in terms of production tests:

- cabinet welds check

- heat exchanger welds check

- external connection dimensions check

- surface treatment check

- check of completeness of the device and accessories

- check of electrical connection See: “Unit test report”

Packaging, transport and storage

- Supplied heaters are packaged on the request of the customer in a fixation foil to

reduce damage of the surface treatment and are stored on wooden prisms or pallets.

- It is necessary to ensure careful handling during transport and loading. Handling

must be carried out only via the pallet, the lower frame (between the wooden prisms) or the welded loop. If there are two loops on the device, it is necessary to use both of them, suspension on one loop is not permitted! Packaging must not be exposed to direct influences of weather, long-term exposure to humidity and impacts.

- Storage of heaters must be carried out in well-ventilated rooms without the effects

of corrosive vapours and aggressive gases or under a shelter that safely covers the heater against atmospheric precipitation.

INSTRUCTIONS FOR INSTALLATION

Installation of the heater in place

The heater is placed on a horizontal, solid enough floor or frame. It is necessary to keep the horizontal position of the heater, or slight slope towards the condensate

outlet to ensure its easy drainage. The slope must not be greater than 5 mm in width of the heater. The location must be such as to allow the combustion chamber to be replaced and the tube space to be cleaned. This means that at the front (on the side of the

burner) there must be free space equal to the dimensions “length x width x height” of the

heater. On the panel covering the tube plate of the heat exchanger chamber (opposite the chimney), nothing can be installed there due to dismantling when cleaning the tube plate.

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For the outdoor design when placed on the roof of the building, the installation

company is obliged to provide the heater with a lightning conductor in accordance

with ČSN EN 62 305.

Safety distances

The actual distance of the air heater from the flammable material must not be less than the safety distance that is 200 mm, according to ČSN 06 1008:97. If this distance cannot be met, it is necessary to use a protective screen made of flammable material A or B. The thickness of the protective screen must be at least 3 mm. The protective screen must have a permanent position between the appliance and the protected material at a distance (30 + 5 mm) from the protected material. The protective screen must extend beyond the protected material to the nearest wall (ceiling) of non-flammable material, but at least 300 mm on the top and 150 mm on the sides. When using the protective screen, the required distance can be reduced by no more than half.

If the heater is installed on the floor of flammable material, an insulating, nonconducting pad is used in this case. The material used for insulating pads - the degree of flammability A, B, must be resistant to the mechanical effects of the load. The dimensions of the pad must be at least the same as the heater floor plan. The thickness of the insulating pad must be at least 5 mm.

No flammable materials can be stored at the location of the heater, as this could

create a fire hazard!

Interconnection of air-conditioning circuit

The air-conditioning piping can be screwed directly onto the frame or through the flange damping insert. The connection on the inlet and outlet side of the air heating element must always be a full-area connection, in case of connection to sub-accessories according to the specification of this accessory.

Connection to smoke flue

The installation of the smoke flue must comply with all applicable regulations and must be carried out by a specialist company. For calculation of the smoke flue, 0 Pa per throat and the mass flow of flue gases according to the burner setting and the heat input (usually approx. 14 kg/h for every 10 kW of output) is considered.

Note : Each heater fitted with a gas overpressure burner must be connected through a separate smoke flue to a separate chimney flue.

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The necessity for all designs of MTP heaters is to ensure condensate drainage from the chimney flue.

Condensate drainage

If the heater contains condensate drainage, it is advisable to ensure condensate drainage from the heater. Condensate drainage must be designed in such a way that it

cannot be frozen in the winter period (for outdoor installations).

Assembly of burner

The heat exchanger units are fitted with pressure burners with one-stage, two-stage

or continuous regulation for the respective heating medium and according to the required output given by the designer. Min. output of the burner is generally set to 50-65 % of the nominal output. It cannot be operated in the full range of the work field. The nominal output is set according to gas pressure, swirler and air damper. The burner is not part of the supply of heat exchanger units.

Prior to installing the burner, it is necessary to tighten the burner flange bolts.

The heating medium connection must be carried out by a specialist company (according to the relevant project) and must comply with the standards for

operation of the given type of burner.

The gas supply and orientation of the burner must be such that the gas inlet does not prevent service access to the tube plate cover. For this reason, it is advisable to

lead the gas supply to the burner in the direction of the air flow. If this is not possible, it is necessary to allow easy dismantling of the part of the piping in front of the removable panel above the tube plate cover.

Assembly and adjustment of the burner will be performed by a service worker of the burner manufacturer or an authorized worker. After the burner adjustment protocol has been handed over and the relevant revisions have been made, the heat exchanger unit is ready for approval and operation. Heat exchanger units are, as standard, fitted with flanges with seals for assembly of the burner by means of bolt connections. For the outdoor design of the heat exchanger unit, the corresponding cover is screwed over the burner.

Before installation, check that the local conditions of fuel distribution, fuel properties, overpressure and current heater settings are compatible.

Electrical installation

The electrical installation must be carried out by a specialist company which must

also provide electrical revision in the sense of ČSN 33 2000-6-61.

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Do not install any elements that make it difficult to dismantle the panel covering the tube plate cover.

The ESD3J safety thermostat is not designed to regulate the required temperature. It is placed in the heated air behind the heat exchanger, in its upper part max. 20 cm behind the heat exchanger tubes. The contact of the safety thermostat T1 must be connected to the burner feed phase to ensure that it is switched off in any (even malfunctioning) condition of the burner. The contact of the operating thermostat T2 is connected to the control terminals circuit (usually marked T1 and T2) of the burner and it switches it off when the temperature is above the set value. The contact of the fan thermostat T3 ensures switching on of the fan and its slowdown (cooling the combustion chamber) when the burner is switched off.

Recommended electrical connection, see drawing No.: 3-JH-2001C - for ESD3J electronic thermostat

The heater is equipped with a clamp for protective connection according to ČSN 32 2000-

4.41.

For the outdoor design of the heater, the triple thermostat is provided with a cover.

Once connected, it is necessary to check the direction of speed of the fan engine!

In case of a triple thermostat, it is absolutely necessary to connect the clamp with PE conductor to prevent the influence of any induced voltages on the thermostat sensor.

Note: It is not possible to switch off the whole device (both burner and fans) without ensuring fan slowdown to cool the heat exchanger. The heat accumulated in the heat exchanger could damage the surrounding equipment due to the flow! It must not be possible to switch off the fans and leave the

burner on!

OPERATING INSTRUCTIONS

For the burner installed on the heat exchanger unit, the “Instructions” supplied together with it by the manufacturer, apply to it.

Each heater is fitted at the output with a triple thermostat that provides safe operating mode. This thermostat is not designed to regulate the required temperature.

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T1 - safety

- switches the burner off by disconnecting its supply voltage and it is blocked in its off state. To enable a new automatic start of the burner, it is necessary to press the button on the triple thermostat. Between the moment of the burner blocking and the unblocking of the triple thermostat, the temperature must drop below the value set on the thermostat T1. The condition for restart of the heater is removing the cause of overheating.

The electronic thermostat used allows remote resetting of the safety thermostat T1 (e.g. by a button located on the door of the control cabinet), which is advantageous for heat exchanger units located in poorly accessible places (e.g. suspended from the ceiling).

In the event of a power supply failure (during burner operation), due to the accumulated heat in the heat exchanger chamber and the fan malfunction, the temperature will increase. If the temperature exceeds the value set on the safety thermostat T1, this thermostat will disconnect the burner supply. The electronic thermostat resets itself when the network is switched on again if the temperature has already dropped below the set value (for a long-term power outage). For a short-term power outage, it is necessary to wait for the fan to cool the chamber and to reset it by pressing the button on the thermostat.

T2 - operational

- switches off the burner when the set temperature is exceeded and switches

it on again when the temperature drops

T3 - fan

- switches the fan on after reaching the set temperature, ensures fan slowdown and cooling the chamber after switching off the burner.

Important information

The main switch can only be switched off after the fan has been completely

stopped. For longer shutdowns, it is necessary to close the fuel supply. After professional commissioning, the set device parameters cannot be further changed to ensure trouble-free operation.

In order to increase safety, we recommend the operator to inspect this heating system at least once a year by a supplier worker or a service worker!

The heater can only be operated by persons over the age of 18. The heater can only be operated by persons physically and mentally competent for this activity.

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MAINTENANCE INSTRUCTIONS

The maintenance of the heater is always carried out while it is out of service. Maintenance service must be in accordance with the operating instructions.

The following activities are performed during maintenance:

a) To ensure at least once a year, in accordance with the valid Decree 85/1975 Coll., checking and adjusting of the burner by an authorized mechanic (preferably before the start of the heating season). The operation of the heater is required for adjusting

the burner.

Inspections and revisions of gas equipment

Gas

Service

control

inspection

When:

1 year

3 years

1 year

Who:

operator

inspecting

service

technician

What is done:

Check of the location, functionality and tightness of the main valve

Check of the location, functionality and tightness of branch closures of ascending lines

Check of the location, functionality and tightness of gas meters

Check of the location, functionality and tightness of regulators

Check of the location, functionality and tightness of gas appliances.

Check of the location of appliances in terms of space ventilation

Visual check of the location and condition of the common space gas pipeline

Overall visual check of the location and condition of the domestic gas pipeline

Check of the tightness of all detachable joints

Check of the presence of CO (carbon monoxide)

Cleaning, adjustment and check of gas appliance

b) Tightening the bolts of the burner plate and the tube plate cover, check after the first month of operation, then regularly before the start of the heating season.

c) Cleaning the tube plate and the condensate drainage at least once a year (as needed). For LFO (light fuel oils) and diesel burners, cleaning of the tube plate must be carried out regularly whenever the heating efficiency decreases (even once a month, if needed). After cleaning, the bolts at the tube plate must always be tightened properly, or, if necessary, the seal should be replaced (check tightening of the bolts repeatedly after a month of operation!)

If the heater contains the following, we also check:

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d) Check of V-belt tension and wear (as needed).

e) Regular check of input filters (min. once a month) - if the heater is equipped with them or they are in the air-conditioning line with the heater. When clogged, clean them or replace the filter cloth. Filter clogging time depends on the intake air pollution. Clogging of the filters significantly reduces the amount of air supplied by the heater and increases the temperature of the heat exchanger chamber. The heat exchanger may be overheated and thus its service life may be reduced.

f) Lubrication of fan bearings - applies only to some fans, e.g. fans with bearings for high temperatures (of ADH-RDH K / K2 type). Note: for MTP (MTPAL) standard sets, maintenance-free bearings with permanent grease filling are used.

Defects:

a) Overheating of heat exchanger, failure of safety thermostat T1

- check whether the suction and discharge spaces (piping, ...) are passable

- check fan condition, loose V-belts, seized bearings

- check the filter cloth, or also filter inserts

- if the filters are not clogged, it is necessary to consult the defect with the

production plant.

b) Flue gases flow into the heated space or higher oxygen content is measured in flue gases

- check bolt tightening of the tube plate cover and the burner flange.

- replace the seal of the burner flange and the tube plate cover.

- check whether the combustion chamber is not burned.

LIST OF ACCESSORIES AND SPARE PARTS

Spare parts are not supplied with the heater. For warranty repairs, the spare parts are available at the production plant which is authorized to carry out warranty repairs on the heater (except the burner). Post-warranty and non-warranty repairs are arranged by the customers themselves, the spare parts can be ordered at the production plant. The warranty does not apply to V-belts and filter cloths.

This documentation provides the basis for elaboration of operating rules in

accordance with ČSN 386405.

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