BaltGaz BaltGaz NEVALUX-8224 User manual

WALL-HUNG COMBI GAS BOILER WITH FORCED
HEAT CARRIER CIRCULATION
BaltGaz NEVALUX-8224
TU 4931-011-26985921-2012
USER’S MANUAL
(TOGETHER WITH INSTALLATION, TECHNICAL SERVICE AND
REPAIR INSTRUCTIONS)
8224-00.000-01 RE
Dear Customer,
Thank you for purchasing our appliance. You have purchased a heating combi wall-hung gas boiler with
forced heat carrier circulation «BaltGaz NEVALUX».

When purchasing the boiler please check:
-Scope of delivery (see section 23, page 50) and the boiler’s resalable condition;
- correspondence of the type of gas (natural or liquefied) used by you with the type of gas indicated in
sections 20 and 21 (page 48) of this Manual and with the table on the boiler’s casing.
You should also require from the selling organization to fill in the warranty repair coupons.
When purchasing the boiler against a credit, the payment schedule must be drawn up with indication of
the full due and payable amount. The payment schedule must be signed by the Customer with the date
indicated and with print full name.
The boiler and the following manual are two integral parts of the offered goods. The manual contains
information about the order of installation of the boiler, rules of its exploitation and technical service,
following them will provide long-term failure-free and safe operation of the boiler. Please acquaint yourself
carefully with this manual before putting the boiler into operation, follow the instructions in it and keep it
safely for further use.
Best regards,
Armavirskiy Plant of Gas Equipment Ltd.
Telephone number of the unified technical support Service 8-800-555-40-35
(free call on the territory of Russian Federation, working hours of the service: Mon-Fri 09:00-17:00
Moscow)
Boiler installation is allowed only in non-living premises with the temperature not less +5oСin strict
adherence to the Gasification project, SP 62.13330.2011 “Gas distribution systems. Updated edition of SNiP
42-01-2002”, SP 41-108-2004 “Door-to-door heating of domestic buildings with gas-fueled heat generators”
and SNiP 41-01-2003”Heating, ventilation and conditioning” and Fire Safety Regulations (PPB 01-03). .
All installation and mounting works, the instruction of the owner, preventive servicing, failure correction and
repair are effectuated only by a specialized service organization.
The boiler is not appropriate for use for people (including children) with low intellectual abilities or in default
of life experience.
The responsibility for safe exploitation of the boiler and its maintenance in appropriate condition is on its
owner. Non-compliance with the safety measures and installation rules, rules of use and technical service,
stated in this manual, can cause boiler’s breakdown, fire, burn, gas poisoning or poisoning with carbonic
oxide (CO) and electrical shock.
Armavirskiy Plant of Gas Equipment Ltd. is constantly working on improvement of output products
and reserves the right for insertion of necessary changes in the boiler’s construction. These changes
might not be displayed in the user’s manual.

TABLE OF CONTENTS
1. SAFETY
MEASURES.......................................................................................................................................................4
2.Technical description………………………………………………………………………………………………...………………5
2.1.Boiler’s purpose………………………………………………………………………………………………………………………5
2.2.Technical characteristics……………………………………………………………………………………….....………………5
2.3.Overall and connection dimensions…………………………………………………………………………………….……6
3. USER’S MANUAL…………………………………………………………………………………………..…………….…8
3.1 Control panel..........................................................................................................................………….…8
3.2 Boiler’s operating modes .......................................................................................................………….…9
3.2.1 Standby mode ....................................................................................................................……….……9
3.2.2. DHW mode ........................................................................................................................……….……9
3.2.3 Combined mode...................................................................................................................………...…10
3.2.4 Heating mode.......................................................................................................................………...…10
3.3. Additional functions..............................................................................................................………...…10
3.3.1 Antifreeze function.............................................................................................................………...…10
3.3.2 Anti-blocking function........................................................................................................…………10
3.3.3 Boiler’s operation in heating mode with an external (outdoor) temperature
sensor……………………………………………………………………………………………………….....10
3.3.4 Boiler’s operation at low /high source voltage……………………………………………………..………………11
4. BOILER SERVICE .................................................................................................................…………11
4.1 Examination ...........................................................................................................................…………11
4.2 Boiler Treatment....................................................................................................................…………11
4.3 Operations effectuated at technical service.........................................................................…………12
5. STORAGE PRECAUTIONS..................................................................................................…………12
6. GENERAL REQUIREMENTS.............................................................................................…………12
7.OPERATIONS BEFORE INSTALLATION.........................................................................…………13
7.1 DHW line ................................................................................................................................…………13
7.2 Heating system .......................................................................................................................…………13
7.2.1 Water quality requirements...............................................................................................………….13
7.2.2 Propylenglycolum usage conditions ..................................................................................………….14
7.2.3 New heating system.............................................................................................................………….14
7.2.4 Existing heating system ......................................................................................................………….14
7.3 Selection of an additional expansion tank............................................................................………….14
8.BOILER INSTALLATION .....................................................................................................………….14
8.1 Mounting the boiler to the wall ...........................................................................................………….14
8.2 Connecting the boiler to the heating system and the DHW system ..................................………….15
8.3 Connecting the boiler to the gas pipeline.............................................................................………….15
8.4 Connecting the boiler to the liquefied gas cylinder.............................................................………….16
8.5 Connecting the boiler to the power line .............................................................................………….16
9. SMOKE EXHAUSTER INSTALLATION...........................................................................………….17
9.1 Installation of coaxial smoke exhauster ..............................................................................………….17
9.2 Installation of separate pipes of smoke exhauster and air
circuit…………………………………………………………………………………………………………18
9.2.1Installation of separate pipes of smoke exhauster and air circuit by means of transitional set
KHG 714061510………………………………………………………………………………………...……18
9.2.2 Installation of separate pipes of smoke exhauster and air circuit by means of channel separator
8023-10.000 ...................................................................................................................................………...…19
10.PUTTING THE BOILER INTO OPERATION (INITIAL RUN).....................................…………22
10.1 Filling the CH and prelaunching check .............................................................................…………22
10.2 Check of combustion parameters.......................................................................................…………23
10.3Additional abilities (options) ..............................................................................................…………23
10.3.1 Connection of room thermostat .................................................................................…………23
10.3.2 Remote control connection .........................................................................................…………23
10.3.3 Connection of external temperature sensor ..............................................................…………24
10.3.4 Connection of a computer for diagnostics ..................................................................…………24
10.4 Switching the boiler off .....................................................................................................…………24
10.5 Water drain from the boiler’s CH......................................................................................…………24
11. BOILER’S POWER REGULATION ..................................................................................…………25
11.1Preparing for operation…………………………………………………………………………….…25
11.2 Checking gas pressure by the regulator’s inlet………………………………………………………25
11.3 Regulating rated pressure .................................................................................................…………25
11.4 Regulating minimal pressure.............................................................................................…………26
11.5 End of operation .................................................................................................................…………26
12. RENDERING THE BOILER TO ANOTHER TYPE OF GAS .......................................…………26
13. FLOW CHARTS AND BOILER OPERATION CONTROL...........................................…………27
13.1 Boiler’s flow chart ...............................................................................................................…………27
13.2 Main components ...............................................................................................................…………29
13.2.1 Control system...............................................................................................................…………29
13.2.2 Hydraulic system .........................................................................................................…………29
13.2.3 Gas system .....................................................................................................................…………29
13.2.4. Smoke exhausting system ...............................................................................................................29
13.2.5. Regulation devices...........................................................................................................................29
13.2.6. Safety devices...................................................................................................................................30
13.3. Service functions..................................................................................................................................30
13.3.1. Parameters programming function...............................................................................................30
13.3.2. Gas analysis function ......................................................................................................................31
13.4. Boiler’s operating logic .......................................................................................................................31
13.4.1. Boiler’s operation in heating mode: .............................................................................................31
13.4.2. Boiler’s operation in DHW mode:................................................................................................32
13.4.3. Boiler’s operation in combined mode............................................................................................33
14. SEARCH FOR FAILURES AND THEIR ELIMINATION...........................................................34
14.1. Error codes...........................................................................................................................................34

User’s Manual
4
14.2. Other failures.......................................................................................................................................36
15. HANDING THE BOILER OVER TO THE CUSTOMER.............................................................37
16. TECHNICAL SERVICE AND OPERATION CHECK .................................................................37
16.1. Technical service..................................................................................................................................37
16.1.1. Cleaning the combuction unit ........................................................................................................37
16.1.2. External cleaning of heat exchanger..............................................................................................38
16.1.3. Internal cleaning (washing) of heat exchanger.............................................................................38
16.1.4. Internal cleaning (washing) of secondary heat exchanger ..........................................................38
16.2. Boiler’s operation check......................................................................................................................38
16.2.1. Check of gas system' s, heating systems' and DHW airtightness of the boiler..........................39
16.2.2. Check of safety devices operation..................................................................................................39
16.2.2.1. Check of heat carrier pressure sensor in the heating system......................................................39
16.2.2.2. Check of heat carrier overheating protection in the heating system..........................................39
16.2.2.3. Check of bypass valve operation....................................................................................................39
16.2.2.4. Checking of safety valve operation................................................................................................39
16.2.2.5. Air removal valve check .................................................................................................................39
16.2.2.6. Check of gas supply regulator operation ......................................................................................39
16.2.2.7. Ionization plug check......................................................................................................................39
16.2.2.8. Check of combustion products removal control devices .............................................................40
16.2.2.9. Check of CH temperature sensor ..................................................................................................40
16.2.2.10. Check of DHW temperature sensor...........................................................................................40
16.2.2.11. Check of water flow sensor in the DHW circuit .......................................................................40
16.2.2.12. Check of air pressure in the expansion tank.............................................................................40
16.2.3. Check of the air inlet and combuction products output systems’ airtightness .........................40
16.2.4. Check of water consumption in DHW ..........................................................................................41
16.2.5. Check of heating system’s contamination.....................................................................................41
17. BOILER’S DISASSEMBLING AND DISMANTLING OF MAIN BLOCKS..............................41
17.1. Burner block dismantling...................................................................................................................41
17.2. Primary heat exchanger dismantling ................................................................................................42
17.3. Pump dismantling...............................................................................................................................43
17.4. Secondary heat exchanger dismantling ............................................................................................44
17.5. 3 way valvedisassembling....................................................................................................................45
17.6. Bypass valve dismantling ...................................................................................................................45
17.7. Expansion tank disassembling............................................................................................................46
18. UTILIZATION....................................................................................................................................46
19. WARRANTY LIABILITIES .............................................................................................................47
20. ...............................................................................................................................................................48
21. ...............................................................................................................................................................48
22. ...............................................................................................................................................................49
23. SUPPLY PACKAGE...........................................................................................................................50
Annex I. Spare parts catalogue.....................................................................................................................53
Annex II. Membrane expansion tank selection directions ........................................................................64
Annex III. Electric circuit diagrams of the boiler.......................................................................................66
..........................................................................................................................................................................70

User’s Manual
5
1. SAFETY MEASURES
For the purpose of your own safety and in order to avoid the boiler’s breakdown it is strictly prohibited
to:
-Use the boiler when it is out of order;
-Put the boiler into operation with no flue pipe installed or with a defective smoke exhauster;
-All gas dangerous works, all technical service works and reparations of the boiler must be effectuated
only by a specialized service organization;
-To effectuate boiler treatment, being in a state of alcohol or drug intoxication;
-To insert changes into the boiler’s construction
-To touch the combustion products outlet pipe while the boiler is in operation, as the temperature of
heating of this pipe might exceed100 oС(for separate pipes of smoke exhaustion and air output);
-To use gas and water systems, and also the heating system, for earth bonding;
-To touch the boiler if you are standing barefoot (or your shoes are wet) on wet floor;
-To effectuate boiler treatment if it is not disconnected from the electric network and gas system;
-To insert changes into the safety and control systems operation with no permission and indication from
the boiler’s manufacturer
-To damage and deform the elements of electrical wiring of the boiler, even if the electric power supply is
disconnected;
-To expose the boiler to the impact of atmospheric precipitations.
In order to avoid poisoning with carbonic oxide the premise where the boiler is installed must have the
ventilation providing air exchange of not less than one premise volume per hour.
In case of long-term idle state of the boiler in winter time or if pipeline freezing danger appears it is necessary
to drain the heat carrier out of the boiler and the heating system.
Do not keep highly flammable and volatile substances (gasoline, solvents etc.) in the premise where the
boiler is installed.
At the boiler’s normal operation and when the gas pipeline is in good order there should not be the smell of
gas in the premise.
IF YOU FEEL THE SMELL OF GAS:
1) Close the gas supply tap, located on the gas pipeline by the inlet into the boiler;
2) Open the windows and doors in order to ventilate the premise, providing maximum fresh air inlet;
3) Do not use electric appliances in order to avoid the appearance of spark;
4) Do not use the telephone in a gas-polluted premise
5) Do not smoke and do not use open fire (lighters, matches etc.)
6) Call the gas facility emergency operation service immediately.
Usage of the boiler when it is out of order or non-compliance with the above-listed rules of exploitation may
lead to an explosion or fire, or poisoning with gas or combustion products.
The first symptoms of poisoning are: heaviness in the head, strong palpitation, buzzing in the ears, swimming
of the head, general weakness. Later scant of breath, nausea, vomiting and disordered motor function may
appear. The injured person may lose consciousness.
In order to provide first aid at gas poisoning or combustion products poisoning it is necessary to:
1) Bring the injured person into the fresh air;
2) Call the ambulance;
3) Unclasp clothes that constrain breath;
4) Give household ammonia to smell;
5) To cover warmly, but not letting to fall asleep.
Prehospital service at electricity impact must be provided immediately, if possible at the place of the
accident, calling the ambulance at the same time.
First of all the injured person must be released from the electricity impact as soon as possible. If it is not
possible to disconnect the electric installation from the power line, you should immediately start releasing the
injured person from conductive parts, using isolating objects.
Releasing the person from voltage, you should use a rope, stick, plank or any other dry object which doesn’t
conduct voltage.
Prehospital service after releasing the injured person depends on his state. If he is conscious, you should provide
him profound rest for some time, not letting him move before the doctor arrives.
If the injured person breathes very poorly and convulsively, but the pulse can be felt, you must immediately do
the mouth-to-mouth or mouth-to-nose resuscitation. In case if there is no breath you must immediately bring the
injured person to a warm premise with fresh air and make resuscitation before the doctor arrives.
2. TECHNICAL DESCRIPTION
2.1. Boiler’s purpose
Heating wall-hung combi boiler with forced heat carrier circulation «BaltGaz NEVALUX-8224»

User’s Manual
6
(hereinafter referred to as “boiler”) s produced in accordance with TU 4931-011-26985921-2012 (GOST R
51733-2001, GOST 20548-93) standards. The boiler is designed for heating dwelling and non-dangerous
industrial premises with an area up to 240 m, and also for domestic hot water supply (hereinafter referred to as
- DHW) for sanitary use.
2.2. Technical characteristics
________________________________________________________________________________Table1
NAME OF THE CHARACTERISTIC
UOM
BaltGaz NEVALUX- 8224
Type of gas
Natural G20 / Liquefied G30
Family; group of gas
2-е; Н / 3-е; B/P
Gas pressure in the duct
kPa
1,3 - 2,0/2,9
Rated heating effect
kW
24,0
Rated heating power
kW
26,7
Rated gas consumption
m3/h
2,95/1,00
Minimal heating effect
kW
8,9
Performance index at rated heating power , at least
%
90,0
Performance index at rated heating power 30%, at least than
%
88,0
CH
Temperature regulation range
°С
30-85
Heat carrier operating pressure
MPa
01-02
Maximum heat carrier pressure
MPa
0,3
Volume of inserted expansion tank
L
6,0
Air pressure in the expansion tank
MPa
0,1
DHW circuit
Water consumption at heating for T=25 °С
l/min
14,0
Temperature regulation range
°С
Operating water pressure
MPa
0,02 ■ 0,60
Minimal water pressure, Рmin
MPa
0,015
Maximum water pressure, Рmax
(at water heat expansion pressure must not exceed this
value)
MPa
1,0
Minimal water flow for switching the boiler on
l/min
2,5
Minimal water flow for switching the boiler off
l/min
1,5
Specific water consumption, D
dm3/mi
n
11,6
Mass consumption of combustion products
g/s
17,0 / 18,5
Average combustion products temperature
°С
140
Type of combustion products outlet
Forced
Heat carrier
Water, Propylenglycolum
Heat carrier circulation type
Airtight forced circulation
Ignition type
Automatic ignition, electronic ignition
Maintenance of set temperature
Automatically kept with accuracy ±1 °С
Temperature indication
LCD display
Rated power tension
V
220 ±10%
Rated electric current frequency
Hz
50
Maximum electric power consumption
kW
0,125
Safety fuse
А
2
Electro security class
I
Protection rate
IP X4D
Overall dimensions: height widths x depth
mm
720x410x326
Net/ Gross weight
kg
34,0 / 36,5
Connection
dimensions
Gas inlet
inch
G3/4
CH inlet and output
inch
G3/4
DHW circuit inlet and output
inch
G1/2
Inlet air orifice / Output orifice for combustion
products (for coaxial pipes)
mm
Ø100 / Ø60
(Inlet air orifice / Output orifice for combustion
products (for separate pipes)
mm
Ø80 / Ø80

User’s Manual
7
2.3. Overall and connection dimensions
A - CH outlet G3/4;
B –DHWoutlet G1/2;
C –gas inlet G3/4;
D –cold water inlet G1/2 E - CH inlet G3/4
(reverse);
F –safety valve tap Ø16 / Ø18 mm
Scheme 1. Overall and connection dimensions of the boilers «BaltGaz NEVALUX- 8224»

Technical staff manual
3. USER’S MANUAL
3.1. Control Panel
The main control element of the boiler is the electronic board which controls all boiler’s operation. The
electronic board’s microprocessor collects and processes signals from the control and safety sensors. All
information about the boiler’s condition is displayed on the LCD display in real-time operation mode.
All control over the boiler is effectuated from the control panel, the appearance of which is shown
on Scheme 3.
If a remote control is connected to the boiler, then control is effectuated from it, the buttons of the control
panel are inactive.
In the left part of the control panel there is a pressure gauge, indicating the pressure inside the CH. Heat
carrier pressure in the CH must be not lower than 1 bar (with pressure lower than 0,5 bar the safety system
will be switched on and it would be impossible to put the boiler into operation).
In the center of the control panel there is an LCD display, showing the temperature in currently active
mode at normal operation of the boiler (at operation in the heating mode it shows the heat carrier
temperature in the heating system by the outlet from the boiler, at operation in the DHW mode –the DHW
temperature by the outlet from the boiler). In case of failure the error code appears on the display instead
of temperature. The boiler’s error codes are represented in the p.14.1 (page 34).
The symbols on display show the boiler’s operation mode. Around the display there are 6 boiler control
buttons. The designation of the control buttons and of the symbols shown on display are represented in the
tables 2 and 3 respectively.
.
3.2. Boiler operation modes
The boiler can operate in the following modes:
- Standby mode (see p. 3.2.1);
- DHW mode (see p. 3.2.2);
- combined mode (see p. 3.2.3, page 10);
-heating mode (see p. 3.2.4, page 10);
When the boiler is connected to the power line, it automatically sets up to the mode in which it was before
being switched off from the power line. Change of boiler’s operating modes is effectuated by pressing the
K5 button on the boiler’s control panel (see p. 3.1, page 8). The sequence of the boiler’s operating modes
change is represented on Scheme 4.
Scheme 3. Boiler’s control panel
Control buttons purpose_________________________________________________________ Table 2
Designation
Function
K1
DHW temperature increase
K2
DHW temperature reduction
K3
Heating temperature increase
K4
Heating temperature reduction
K5
Choosing the boiler’s operation mode, switching the boiler on/off (see p. 3.2)
K6
Reset of the boiler’s electronic board blocks (RESET)
Purpose of symbols shown on display ______________________________________________ Table3
Symbol
Is always glowing
Flickering
Antifreeze function operating symbol (see p. 3.3.1,
page 10)
Presence of flame on the burner
Standby mode
Boiler in the DHW standby mode
Boiler operating in the DHW mode
Boiler in the heating standby mode
Boiler operating in the heating mode
RESET
Error code, reset request
Error code, maintenance service required
Parameters programming
(see p. 13.3.1, page 30)
Parameter number displayed
Parameter value displayed
Remote control connected
Remote control connection error

Technical staff manual
3.2.1. Standby mode
In the standby mode, when the boiler is waiting for the user’s commands, the symbol is shown on
display. The boiler is not in operation, but the possibility of switching on the antifreeze functions (see
p.3.3.1, page 10) and parameters programming (see p. 13.3.1, page 30) remains.
3. 2.2. DHW mode
In the DHW mode the boiler is operating only for the DHW system. The boiler ignores the signals of the
room thermostat and the CH temperature sensor (see p. 3.3.3, page 10). If hot water is not used, the
symbol is constantly shown on display. When hot water is used, the symbol is flickering.
The water temperature regulation range is 30 ÷ 60 oС.
CAUTION! The possibility of set temperature maintenance in the DHW mode is limited by the
boiler’s minimal heating effect -8,9 kW. So in case of higher water temperature by the DHW inlet
(during the summer season) and its small consumption the temperature by the DHW outlet might be
much higher than the set one. In order to reduce water temperature in this case you need to increase
its flow through the DHW. This aspect of the boiler’s operation is not a failure and permits to save
the principal possibility of the boiler’s operation in DHW mode in given conditions.
3. 2. 3. Combined mode
In the combined mode the boiler operates both for heating and DHW. While operating in this mode the
symbols and are shown on display. If there is no water flow in the water supply line the
boiler operates in the heating mode (the symbol is flickering and the symbol is glowing).
If hot water is used, the boiler automatically switches to the DHW mode (the symbol is glowing,
and the symbol is flickering).
3.2. 4. Heating mode
In the heating mode the boiler operates only for the heating system. The boiler ignores the signal from the
DHW flow sensor ( see p. 13.1, page 27). In this mode the symbol is flickering on display. The
heating system temperature regulation range is 30 ÷ 85 oС.
З.З.Additional functions
The boiler is equipped with additional functions that may be used under several operation modes. These
functions provide additional safety and easiness in exploitation and in the boiler’s maintenance service.
3.3.1. Antifreeze function
The antifreeze function is an inserted safety system, which automatically launches the boiler in the heating
mode when the heat carrier’s temperature in the heating system reduces for less than + 8 °С and switches
the boiler off when the heat carrier’s temperature reaches the level of + 30 °С. This mode is activated
automatically in case if the following conditions are fulfilled:
-The boiler is connected to the power line and to the gas pipeline;
-The boiler is not in blocked position because of failure;
-The pressure in the heating system corresponds with the set parameters.
3.3.2. Anti-blocking function
The pump anti-blocking function permits to exclude blocking of the pump shaft in and protect the 3 way
valve stem from oxidization in case of boiler’s long-term idleness. This function works only in standby
mode. Once in 24 hours the pump is launched for 15 seconds and switching the 3 way valve over occurs.
К5
DHW mode Combined mode Heating mode
Scheme. 4 sequence of the boiler’s operating modes change

Technical staff manual
3.3.3. Boiler’s operation in heating mode with an external (outdoor)
temperature sensor
For an optimal heat carrier temperature regulation in the CH depending on external
temperature it is recommended to use an external (outdoor) temperature sensor. The
correction of heat carrier temperature in the CH is effectuated in accordance with the
external temperature and regulation coefficient Kd (see Scheme 5). The electronic
board automatically discerns the presence of an external sensor and effectuates the
temperature regulating function. At heat carrier temperature setting in the CH the
value of the Kd coefficient is shown on the boiler’s control panel’s display instead of
the temperature value. The regulation coefficient may be set in a range between 0 and
9,9.
Please see the recommendations on connection of the external sensor in p. 10.3.3
(page 24).
3.3.4. Boiler’s operation at low /high source voltage
When the source voltage comes outside the range 190 ÷ 250 V the electronic board renders the boiler into
the standby mode. At this moment the symbol –- is shown on the boiler’s display and the boiler does not
react on pushing the control buttons.
In 30 seconds after voltage recovery in the range of 190 ÷ 250 V the boiler’s operation is automatically
restored in the mode in which the boiler was before, before voltage comes outside the range 190 ÷ 250 V.
4. BOILER SERVICE
In order to provide long-term and failure-free boiler operation and to keep its operational characteristics it
is necessary to regularly effect the examination, treatment and technical service of the boiler.
Examination and treatment must be effected by the boiler’s owner.
Boiler technical service can be effectuated only by a specialized service organization not less than
once a year. The recommended time for technical service if before the heating season start.
Boiler technical service might be required more often than once a year, in case of intensive work of the
boiler in a premise where there is much dust in the air or in case of higher water hardness. The
unscheduled boiler cleaning must also be effectuated also in case if in the premise where the boiler is
installed there were construction or reparation works and much construction dust and waste got into the
boiler.
CAUTION! Works connected with technical service are not warranty liabilities of the manufacturer
company and are effectuated by the customer’s cost.
4.1. Examination
Every time before putting the boiler into operation, and in case of the boiler’s operation during the
heating season once a day, it is necessary to:
-Make sure that there are no highly flammable objects next to the boiler or next to the smoke exhausters;
-Make sure that there is no smell of gas inside the premise, if the smell of gas in the premise was detected
you must address to the gas facilities service;
-Make sure that there are no heat carrier leakages in the heating and hot water supply systems, in case if
leakages are detected you must address to a special service organization;
-Make an external examination of the smoke exhausters in order to detect damages. If smoke exhauster
damages are detected, you must address to a special service organization
4.2. Boiler treatment
-The heat carrier filters of the heating and DHW supply systems must be cleaned regularly, especially
before the beginning of the heating season. The DHW filter must also be cleaned at water flow
reduction in the DHW supply line;
- The air from the heating system must be removed from time to time (see section 10, page 22);
-The heating system must be filled with the heat carrier until the needed pressure is reached (see section 10, page
22);
-The boiler must be kept clean, for this it is necessary to remove dust from the boiler’s upper surface regularly,
and also to clean the boiler’s casing first with a wet rag and then with a dry rag. In case of bigger dirtying you
should first wipe the boiler’s casing with a wet rag, moistened in a neutral detergent, and then with a dry rag. It is
prohibited to use detergents of heightened effect and containing abrasive particles, gasoline and other organic
solvents for cleaning the casing’s surface and plastic details.
CAUTION! In case of using water as a heat harrier, do not change the water in the heating system unless
necessary, it will permit to reduce scale deposit in the heat exchanger. Before coming long-term idleness of
the boiler in winter time it is necessary to drain the water from the heating system in order to avoid
damaging the pipelines when it freezes.
CAUTION! All boiler treatment operations must be effectuated only after it is disconnected from the
network and has cooled down.
4.3 Operations effectuated at technical service
At technical service the following operations are effectuated:
1) Cleaning of the burner block (burner);
2) Cleaning the heat exchanger from soot and cleaning (washing) the heat exchanger’s pipes from scale
deposit (if necessary);
3) Cleaning (washing) the secondary heat exchanger from scale deposit (if necessary);
4) Replacement of the seals in the gas system, the heating and hot water supply systems;
T external CH T
Scheme 5. Schedule of dependency of the temperature in the CH from the external
temperature

Technical staff manual
5) Checking the boiler’s gas, heating and hot water supply systems’air tightness;
6) Lubrication of moving connections (if necessary), it is recommended to use thick lubricant greases on
silicone base;
7) Checking of safety devices, they must work without failures;
8) Checking of air pressure in the expansion tank (once in 3 years), the pressure must be 1,0 bar;
9) The air inlet system and combustion products outlet must be checked for air tightness;
10) Water flow in DHW supply system must be enough for switching the DHW mode on;
11) Checking of the heating system in order to detect contamination.
CAUTION! Technical service operations connected with disassembling of its gas or hydraulic pipelines
must be effectuated only after switching off the boiler completely (the taps on heat carrier , water and gas
pipelines by the inlet into the boiler must be closed, the boiler must be disconnected from the power line).
5. STORAGE PRECAUTIONS
-The boiler is made in climatic category UHL4.2 under GOST 15150-69 standard.
-The boiler must be stored and transported in the package only in the position indicated on the handling
symbols.
- The boiler must be stored in a closed premise that guarantees protection from atmospheric and other harmful
impacts at air temperature from −50 ºС to +40 ºС and relative humidity not more than 98%.
-In case of boiler storage for more than 12 month a conservation according to the GOST
9.014−78 standard must be effectuated.
-Inlet and output hoses orifices must be closed by cover plugs.
6. GENERAL REQUIREMENTS
Installation, technical service and initial run of gas appliances for domestic use must be effectuated in accordance
with local requirements, more specifically:
SNiP II−35−76 «Boiler-plants»;
SP 62.13330.2011 «Gas-distribution systems. Updated edition SNiP 42−01−2002»;
SP 41−108−2004“Door-to-door heating of domestic buildings with gas-fueled heat generators”;
SNiP 41-01-2003”Heating, ventilation and conditioning”;
”Regulation of fire safety in Russian Federation” (PPB 01−03);
PUE “Electrical Installation Regulations”.
Also it is necessary to pay CAUTION to the following moments:
-The boiler may be used with any type of heat exchangers (convectional stoves, radiators and convectors), and
their power system may be both double-pipe and single-pipe;
-Children must be kept away from contact with package elements (plastic bags, polystyrene etc.), as they
represent a potential source of danger.
The boiler’s initial run and warranty liabilities must be fulfilled by a special service organization.
7. OPERATIONS BEFORE INSTALLATION
CAUTION! Boiler installation, putting the boiler into operation and technical service can be
effectuated only by a specialized service organization. Boiler installation must be effectuated
according to the project which complies with the requirements of Federal and local normative acts,
regulating gas appliances installation.
The boiler is designed for heating water to the temperature lower than the boiling point at atmospheric
pressure.
The boiler should be connected to the heating system, and also to the water supply network in order to
receive domestic hot water for housekeeping needs (hereinafter referred to as DHW), and after that to the
gas pipeline. Heating and water supply systems must be compatible with the boiler’s exploitation
characteristics and power.
The boiler’s technical characteristics are represented in p.2.2 (page 5).
Before putting the boiler into operation it is necessary to effectuate the following:
-To check the compliance of the type of gas and pressure indicated in the sections 20 and 21 (page 48) and
in the table o the boiler with the used type of gas and gas pressure in the place of the boiler’s installation.
In case of non-compliance it is necessary to render the boiler to the used type of gas and pressure in
accordance with section 12 (page 26);
-To make sure that the installation was correct and the smoke exhauster is airtight;
-In order to provide correct boiler operation ant to keep the warranty it is necessary to follow the
requirements of this manual.
7.1 DHW Line
For normal boiler operation it is necessary to install a water filter by the inlet into the boiler on the DHW
line.
If water hardness exceeds 200 mg of calcium carbonate per 1 liter water, it is necessary to install a
polyphosphates dose meter or another water softening device.
7.2. Heating system
The boiler is connected to the heating system and DHW system, in accordance with its characteristics and
heating power.
Minimal heat output of the heating system must be more than 8,9 kW. Otherwise, the boiler will
operate unstably, what would lead to reduction of its service life.
It is recommended to use water as a heat carrier in the heating system. It is acceptable to use
Propylenglycolum as a heat carrier.
Presence of rust, dirt and other deposits in the heating system leads to the boiler’s operation disturbance
and performance degradation (for example overheating, noise in the heat exchanger, heating effect
reduction). In connection to this, the heating system must be washed before the boiler’s installation. For
this acid and alkaline-based detergents or detergents, corroding metal, plastic and rubber parts of the
boiler, cannot be used.
It is recommended to use SENTINEL X400 иSENTINEL X100. The purchased heating system cleaning
detergent must be used in accordance with the instruction attached to it.
7.2.1 Water quality requirements
The quality water used in the heating system must comply with the following parameters:
-РН value 6-8
-General hardness not more than 4 mg-eq/l
- Iron content not more than 0,3 mg/l
If the incoming water’s hardness exceeds 4 mg-eq/l, it is necessary to install by the water’s inlet into the
boiler a polyphosphates dose meter, which processes the water coming into the boiler, protecting the heat
exchanging equipment of the boiler from hardness deposition. The polyphosphates dose meter is not included

Technical staff manual
into the boiler’s standard supply package and is purchased separately.
If the incoming water’s hardness exceeds 9 mg-eq/l, it is necessary to use more powerful water softening
installations
7. 2. 2. Propylenglycolum usage conditions
It is acceptable to use as a heat carrier in the heating system the low-freezing liquid only on
Propylenglycolum base (hereinafter referred to as Propylenglycolum).
IT IS PROHIBITED to use other low-freezing liquids!
It is necessary to use the Propylenglycolum concentration with freezing temperature not lower than
minus 20 ºC. In order to receive heat carrier with required freezing temperature it is necessary to
strictly follow the recommendations of the Propylenglycolum manufacturer.
When Propylenglycolum is used as a heat carrier the heating system must be made in accordance with
the project, complying with the following requirements:
-The heating system’s project must be adapted for use of Propylenglycolum as a heat carrier.
-seal materials of the heating system’s joints must be fit for operation in Propylenglycolum
environment;
-it is unacceptable to use zinc-plated pipes in the heating system;
-it is necessary to use radiators and circulation pumps of increased power, as the boiler’s heating
effect reduces at using Propylenglycolum (for approximately 10%);
-in the heating system there must be provided a possibility of Propylenglycolum infeed in case of it
leakage.
It is necessary to use Propylenglycolum not longer than its shelf life, in accordance with the
manufacturers recommendations.
In the Certificate of boiler’s installation and effectuation of technical service the specialist of the
service organization, who effected the boiler’s installation, must make a mark about usage of
Propylenglycolum as a heat carrier, indicating its brand.
7.2.3 New heating system
The new heating system, before connecting it to the boiler must be cleaned from shavings, welding
lubrication burr and other undesirable materials that may have got inside of it at installation, using
appropriate means for it.
7.2.4. Existing heating system
The existing heating system must be cleaned from accumulated dirt, rust and scale deposits before
connecting it to the boiler, using appropriate means for it.
7.3. Selection of an additional expansion tank
The membrane type expansion tank, inbuilt into the boiler is designed for connection of the boiler to the
heating system with a capacity of not more than 70 liters. If the boiler is connected to the heating system
with bigger heat carrier volume, it is necessary to install and additional membrane expansion tank. The
additional expansion tank selection and installation must be effectuated only by a specialized service
organization. Indications on selection of an additional membrane tank are represented in Annex II (page
64).
8. BOILER INSTALLATION
8.1.Mounting the boiler to the wall
- The boiler must be installed in kitchens, corridors or other non-living heated premises in accordance with the
gasification project, the set of rules SP 62.13330.2011, SP 41−108−2004, SNiP 41-01-2003 and Regulations
of fire safety of Russian Federation(PPB 01−03);
- in accordance with p. 4.2.7, 4.2.10 and 4.2.11 SP 41−108−2004 the boiler installation should be provided
in the following conditions:
- On the walls made from non-flammable (NG) or low-flammable (G1) materials;
-On the walls covered by non-flammable (RG) or low-flammable (G1) materials (for example roofing steel on
a sheet of heat-insulating layer of non-flammable materials not less than 3 mm thick; lime plaster not less than
10 mm thick) on a distance of not less than 3 cm from the wall. The above mentioned wall covering must get
outwards the boiler’s coating’s dimensions for not less than 10 cm;
-Placing the boiler above the gas stove or kitchen sink is unacceptable;
-In front of the boiler there should be a service zone of not less than 1 meter;
- You should choose a place for installing the boiler taking into account the fact that for convenient service a
free space of not less than 150 mm on the boiler’s lateral sides and not less than 200mm under it is needed.
The boiler’s overall dimensions are represented on Scheme 1 (page 6);
- Mark the boiler’s attachment points, applying the carrier from the supply package and perforate holes Ø10 mm.
In order to mark the holes on the wall it is recommended to use a harness board, included into the boiler’s supply
package. Put the wall dowels from the supply package into the holes and fix the boiler mounting carrier, using the
screws from the supply package;
-hang the boiler by the mounting holes, located on the channel bars, onto the hooks of the carrier.
8.2 Connecting the boiler to the heating system and the DHW system
- Connecting the boiler to the heating system and the DHW system must be made with metal pipes or
flexible hoses with inner diameter not less than 20 mm for attaching them to the CH and not less than 15
mm for attaching them to the water supply system. The hoses must be resistant to the inlet water and heat
carrier with set parameters of pressure and temperature. The hoses must be not more that 2,5 meters long.
The hoses should be installed in accordance with the instructions of their manufacturer;
-We strictly recommend to install two stop valves G3/4 by the inlet into the heating system and the
output from it (they are not included into the supply package) in order to effectuate the technical service
operations without water drain from all the heating system;
-In order to avoid boiler’s CH’s dirtying on the heating system’s reverse line (by the inlet into the boiler) it is
necessary to install net filter (“mud flap”) and slime tank;
-A stop valve G1/2 (not included in the supply package) must be installed on the DHW line in front of the
filter.
-Remove cover plugs from connection pipes;
-connect the boiler to the heating and water supply systems. Check the joints’ air tightness.
-CAUTION! The CH pipelines must pass through inner heated premises, otherwise in case of using
water as a heat carrier freezing inside of the CH is possible at sub-zero temperature of surrounding air.
8.3. Connecting the boiler to the gas network
-In accordance with p. 7 SP 62.13330.2011, the connection of the gas line to the boiler should be made with
metal pipes (steel and copper) and heatproof multi-layered polymer pipes, including also one metal layer

Technical staff manual
(metallopolymeric pipes). It is acceptable to use multi-layered metallopolymeric pipes for inner gas pipelines
at natural gas provision to one-flat domestic buildings not higher than 3 floors in condition if they are
confirmed as acceptable for construction use. It is acceptable to connect the boiler to the gas pipeline by a
flexible tubing (hose), resistant to transported gas at set pressure and temperature. The inner diameter of pipes
and hoses must be not less than 20 mm.
In accordance with p. 5.5 SP 41−108−2004 the flexible connections shall be not longer than 1,5 m. The
hoses must be installed in accordance with the instructions of their manufacturer.
- Remove cover plugs from connection pipes;
-Install the gas filter and stop valve on the gas pipeline by the inlet into the boiler;
-The gas valve must me easily accessible;
-Connect the boiler to the gas pipeline. Check that there are no gas leakages. Airtightness control is
effectuated by means of a soap solution bubble test on the joints or by other safe methods. Appearance of
bubbles means that there is a gas leakage. The gas leakage is unacceptable.
8.4. Connecting the boiler to the liquefied gas cylinder
-Before connecting the boiler to the liquefied gas cylinder make sure that your boiler is set up for
operation with this type of gas. Otherwise it is necessary to effectuate the boiler’s rendering to liquefied
gas in accordance with section 12 (page 26).
-The balloon with liquefied gas must necessarily be equipped with a reduction unit with vapor phase
stabilization pressure of 2,9kPa and vapor phase capacity not less than 1 m3/hour.
CAUTION! Using reduction units with stabilization pressure different from 2,9 kPa IS
PROHIBITED.
-The hose length for connecting the boiler must be not more than 1,5 m., the inner diameter- not less than
20 mm. The gas supply hose must be resistant to the supplied gas at set pressure and temperature. The
hoses should be installed in accordance with the instructions of their manufacturer.
-In front of the boiler’s inlet a stop gas valve must be installed, which must be easily accessible.
-After finishing the installation it is necessary to check the joints and the whole length of the connection hose
in order to detect a gas leakage (see p. 8.3)
In order to avoid accidents it is PROHIBITED:
1)To keep gas balloons and lay hoses under direct sunlight, next to heat sources (heating stove, oven,
heating radiators, other heating appliances);
2) To heat the balloons by means of flame or heating appliances;
3) To use damaged gas balloons.
It is recommended to keep gas balloons in a special metal cabinet in order to limit access of children and
unauthorized persons to them. Placing gas-cylinder installations inside the building is unacceptable.
8.5 Connecting the boiler to the power line
The boiler corresponds to the I class electric shock hazard protection. It is necessary to make sure that there is an
AC outlet of alternate current monophase network with rated voltage 220 V. 50 Hz frequency and with an earth
contact.
In order to provide safety when power supply is beyond the range of 190-250 V the electronic board renders the
boiler to standby mode (see p. 3.3.4, page 11).
The boilers earth must be effectuated following all earth requirements in accordance with GOST 27570.0−87
standard. The earth conductor is connected to the earth screw on the boiler’s bottom panel (marked with the
symbol Θ )by one end, and by the other end to the earth loop of the premise where the boiler is installed. It is
prohibited to use heat carrier, water and gas pipelines and also the heating radiators for earth. The scheme of the
boiler’s electric connections is represented in Annex III (page 66).
Note. It is recommended to effect the boiler’s connection to the power line through a Constant voltage regulator
in order to provide stable and failure-free operation and also to prevent the boiler’s breakdown because of power
line surges.
CAUTION! In case of power cable damage, in order to avoid danger, its replacement must be effectuated
by a specialized service organization.
CAUTION! The manufacturer bears no responsibilities for failures caused by non-compliance with the
above-listed requirements. All activities, not complying with the activities listed in this Manual, may not
only cause the boiler’s breakdown, but also create a life hazard.
9. SMOKE EXHAUSTER INSTALLATION
It is strictly prohibited to put the boiler into operation in case if the smoke exhausting pipe is not
installed, in order to avoid combustion products poisoning.
The boiler has an air inlet duct for combustion and a combustion products outlet duct, what permits not to use the
air from the premise. Using different component parts, you may connect a coaxial pipe (see p. 9.1 page 17) or two
separate pipes (see p. 9.2 page 18) to the upper part of the wall-hung boiler with further output of them from the
premise.
The pipes for combustion products removal must comply with the following requirements:
-The pipe must be made from non-flammable material, resistant to mechanical deformations, not subject to
corrosion, and fully airtight. It also must be protected from overheating, from inflammation and freezing;
- The joints of the smoke exhauster pipe must be made of thermo-resistant material not subject to corrosion;
-The smoke exhauster pipe must be installed in a place available for service so that, in case of the pipe’s damage,
there would be no hindrance for smoke leakage elimination.
After installing the smoke exhauster, it if necessary to effectuate the following.
-To make sure that there are no narrowings in the smoke exhauster, and also that outlet pipeworks of other boilers
are not connected to it. It is acceptable only in case if the smoke exhauster is designed for several users and is
produced in accordance with local requirements;
-If the boiler must be connected to an existing smoke exhauster, it is necessary to make sure that the latter is clean,
as slag separation from the smoke exhauster’s walls while the boiler is in operation might encumber the free outlet
of exhausted gases.
In order to purchase the necessary parts and details of the smoke exhauster you should contact the trading
organization, effectuating realization of accessories for the boilers “BaltGaz NEVALUX” in your region.
CAUTION! It is prohibited to use ventilation channels for combustion products removal.
9.1.Installation of coaxial smoke exhauster
Connecting the coaxial pipe to the boiler is effectuated by means of a connection set KHG 714101410 (not
included into the supply package), which includes a coaxial branch pipe 90 °, a joint sleeve for connecting to the
boiler’s outlet and gasket (see scheme 6). If necessary the connection set KHG 714101610 can be used (not
included into the supply package), with a branch pipe 45 °.

Technical staff manual
9.2 Installation of separate pipes of smoke exhauster and air circuit
Connecting separate pipes to the boiler is effectuated with a transitional set KHG 714061510 (not included into the boiler’s supply package) or a channel separator
8023-10.000 (not included into the boiler’s supply package).
The transitional set’ s and the channel separator’s construction provides regulation of amount of combustion inlet air with a butterfly damper. The amount of inlet
air depends on pipe length and is defined with the help of gas sensor. It is necessary to turn the butterfly damper clockwise, reducing the amount of inlet
combustion air, until the gas sensor detects the increase of CO level (more than 0,05%) in smoke gases. After this you should turn the butterfly damper invertedly a
little and fix.
Using separate pipes it is necessary to additionally take into account the following:
-The total maximum pipe length must not exceed 25 m. Each 90° branch pipe is equal 1 m pipe, each knot bend 45 ° - 0,5 m pipe;
-In case of big length of the smoke exhauster pipe and possible appearance of condensation in it, a condenser tank 4 must be installed by the inlet into the boiler (see
Scheme 7);
- The slope of the horizontal parts of the smoke exhauster pipe must be not less than 3° towards the condenser tank (if there is one);
9.2.1. Installation of separate pipes of smoke exhauster and air circuit by means of transitional set KHG 714061510
Scheme 7. Installation of separate pipes of smoke exhauster and air circuit by means of transitional set
The transitional set consists of details 7, 8, 9 (see Scheme 7). The smoke exhauster connector 7 is installed onto the central orifice on the upper surface of the boiler
and is fixed by clip 8.
The boiler’s construction provides a possibility of installation of the air circuit pipe 3 (air inlet) both on the left and on the right side from the smoke exhauster pipe.
9.2.2. Installation of separate pipes of smoke exhauster and air circuit by means of channel separator 8023-10.000
CAUTION! In order to install the channel separator 8023-10.000 onto the boiler you must have the following items (not included into the supply package):
-screw (self-driving screw) Ph - 4,8x60 DIN 7981 –4 pcs.;
-plain washer 5,3х10 DIN 125 (GOST 11371) –4 pcs.;
-ring 005−008−19−2−2 GOST 9833−73 or a seal gasket with inner diameter 5 mm and external diameter 8-10 mm (material-paronite) –4 pcs.;
The channel separator installation sequence:
1) Unscrew eight screws 1 and take off the duct slice 2 (see Scheme 8);
Scheme 6. Installation of coaxial smoke exhauster
When using coaxial pipes it is necessary to additionally take into account the following:
- The slope of the horizontal part of the smoke exhauster pipe must be 3° towards the street or
condenser tank;
-The maximum acceptable pipe length is 3 m. Each branch pipe 90°is equal 1 m pipe, each knot bend 45
° - 0,5 m pipe;
-Use branch pipes at pipe’s turn points. The amount of 90° turns must not exceed three (including the
branch pipe at the boiler’s outlet).
1- boiler;
2- coaxial branch
pipe;
3- coaxial smoke
exhauster pipe;
4- joint sleeve;
5- duct slice;
6- gasket;
7- fan plug;
8- thermo insulation
1- boiler;
2- connector;
3- air inlet pipe Ø80 мм;
4- condenser tank;
5- smoke exhauster pipe
Ø80 мм;
6- smoke exhauster pipe
Ø80 мм;
7- smoke exhauster connector;
8- clip;
9- air inlet pipe connector;
10 - fan plug;
11 - thermoinsulation

Technical staff manual
3) Make sure that the seal ring 6 is placed (at the place of connection of the fan plug) before installing the separator onto the boiler (see Scheme 10);
4) Install the channel separator 2 onto the boiler, controlling that the plug won’t “bite on” the seal ring 6;
5) Fix the channel separator by four screws 3 (previously install the plain washer 4, and then the ring 5 on each screw);
6) Make sure that there are seal rings 7 (2 pcs.) placed on the inlet and outlet of the channel separator before further installation of the smoke exhauster and air circuit
pipes
7) The installation of the air inlet pipe and the smoke exhauster pipe must be effectuated in accordance with Scheme 7 (see p.9.2, page 18).
Scheme 8. Duct slice dismantling
2) install the gasket 1 (supplied in the boiler’s supply package) (see Scheme 9);
Scheme 9. Gasket installation

Technical staff manual
B-B
1- boiler;
2- channel separator;
3- screw Ph - 4,8x60 DIN
7981;
4- plain washer 5,3x10 DIN
125;
Scheme 10. Channel separator
installation scheme
5- ring 005-008-19-2-2 GOST 9833-
73;
6- seal ring;
7- seal ring

Technical staff manual
10.PUTTING THE BOILER INTO OPERATION (INITIAL RUN)
If the boiler was at sub-zero temperature during its transportation and storage, it must be held at positive
temperature (not less than 5 oC) during 2…3 hours before the initial run.
The requirements to the heat carrier of the heating system are represented in p. 7.2 (page 13).
10.1. Filling the CH with water and prelaunching check
1) Release the air output valve 8 (see p. 13.1, page 27) (located on the pump 7), turning off its cap for
1,5…2 turns;
2) Open step-by-step the cold water inlet tap on the DHW line by the inlet into the boiler, CH feed tap
24 and stop valves on the direct and reverse lines of the CH (if they are installed);
3) Close the boiler’s feed tap 24, when the pressure in the CH reaches 1-2 bar, (according to the
pressure gauge readings) in accordance with the technical characteristics table (see p. 2.2, page 5).
The recommended pressure is 1,5 bar. If the pressure is lower than 1 bar it is prohibited to put the
boiler into operation;
4) Switch the boiler on, not opening the gas tap, so that the pump completely removes the air from the
heating system. Herewith the pressure may reduce lower than 1 bar and the boiler will show the
error 04 (insufficient heat carrier pressure in the CH). In order to remove the error you need to press
the button K6 (RESET) (see p.3.1, page 8).
Repeat the actions according to the points 1-4 until the pressure in the CH stabilizes at the level of
1,5 bar, that will indicate that the air is fully removed. The installation of additional air output valves
is recommended at the upper points of the heating system for more fast and complete air removal.
Before a test ignition of the boiler it is necessary to check whether:
1) The boiler installation was effectuated in accordance with the requirements indicated in section 8
(page 14) “Boiler installation”;
2) The heat carrier pressure in the heating system is 1-2 bar ( the recommended pressure is 1,5 bar).
If the pressure is higher than 2 bar –the drain valve 14 must be opened (see p. 13.1, page 27),
reducing the pressure for 1,5 bar. If the pressure is lower than 1 bar –the CH feed tap 18 must be
opened and it must be closed when the pressure reaches the level of from 1 till 1, 5 bar;
3) The air inlet and smoke exhauster pipes are installed and comply with the requirements of
section 9, page 17;
4) The power line’s voltage and frequency correspond with the levels indicated in the table 1(see p.
2.2, page 5);
5) The type of consumed gas must correspond with the type of gas indicated in the sections 20 and
21 (page 48) of this manual and the type of gas indicated on the table on the boiler;
6) There is no gas leakage ;
7) The air outlet valve is opened;
8) The stop valves on the direct and reverse lines of the CH are opened;
9) The pump is not blocked. To find it out you may screw off the pump’s cover plug with a screw
driver and turn the pump shaft back and forth several times (see Scheme 12), herewith the boiler
must be disconnected from the power line (take the connector out of the AC outlet).

Technical staff manual
Than screw the cover plug up tight. While effecting this operation heat carrier leakages from the pump are
possible, after installing the cover plug the rests of heat carrier must
be removed from the boilers components (you must wipe them);
10)also check the boiler connection to the AC outlet of
the monophase network of alternate current with
rated voltage of 220V, 50Hz frequency, with an earth
bonding contact;
11)Also check the heating system’s air tightness.
Scheme 12. Circulation pump
check

Technical staff manual
CAUTION! Prevent the heat carrier and water from getting onto the boilers electronic
components!
CAUTION! If Propylenglycolum is used n the heating system as a heat carrier, it is
necessary to effectuate special measures in order to fill the boiler and heating system, and
also periodic control of Propylenglycolum’s density. The heating system’s filling and infeed
must in this case be effectuated by a technical specialist of a service organization, using
special equipment.
10.2. Check of combustion parameters
The boiler permits to effectuate the heating-performance parameters analysis not disturbing the
boiler’s settings. For this it is necessary to use the function of gas analysis (measuring of output
gases temperature and of the content of carbonic oxide in them). Before activating this function
(see p. 13.3.2, page 31) it is necessary to make sure that the boiler is switched on and operates in
the heating mode or in the combined mode, and the smoke exhauster pipe has an orifice for the
gas sensor input on the straight section on a distance of not less than 250mm from the gas
removal device outlet. During the combustion process analysis the heat carrier overheating
protection system remains active, when the heat carrier reaches the temperature of 88 oC the
boiler will pass to standby mode. After finishing the measurements the gas sensor inlet orifice
must be made airtight.
10.3. Additional abilities (options)
10.3.1. Connection of room thermostat
For more effective operation of the boiler it has a possibility to connect a room thermostat,
which is installed in the heated premise. In order to install the thermostat it is necessary to
remove the plug wire from the contacts 28 and 29 (connector M10) from the room thermostat’s
connector (see Annex III, page 66) and place the cables with a terminal strip from the contacts
26 and 27 into the contacts 28 and 29. Then you must effect the connection of interconnecting
wires of the room thermostat to the terminal strip (the thermostat’s wires’ connection polarity
does not matter). The plug wire must be given to the boiler’s owner so that he keeps it.
The room thermostat is not included in the standard supply package and is purchased separately
if desired by the customer. The cable for connecting the room thermostat to the boiler is not
included into the thermostat’s supply package. The main requirements for choosing the cable
are:
-the cable’s maximum length is 30 meters;
-the flexible copper multiple-core cable with cross sectional area of 0,5…1,5 mm2.
10.3.2. Remote control connection
The boiler permits to use a remote-control console (hereinafter referred to as “remote control”).
The remote control has got an inbuilt temperature sensor and permits to control the boiler from a
distance (not more than 30 meters from the boiler) and set the same commands as from the
control panel. Also the remote control permits to control the boiler’s operation, keeping the
temperature set by the user in the premise. The remote control is connected to the connector M8
through the contacts 40 and 41 of the electronic board (see Annex III, page 66). While
connecting the remote control it is necessary to remove the room thermostat’s connector from
the M10 connector and give it to the boiler’s owner so that he keeps it (see p.10.3.1).
It is acceptable to connect the remote control together with the external (outdoor) temperature
sensor (see p. 10.3.3). Herewith the boiler regulates the temperature in the CH either with the

Technical staff manual
help of the remote control’s temperature sensor (the remote control can display the value of
outdoor temperature), or depending on external temperature (see p. 3.3.3, page 10).
Before connecting the remote control it is necessary to make sure that it is prepared for connection in
accordance with the installation and connection manuals that are included in the remote control’s supply
package.
The remote control is not included into the boiler’s standard supply package and is purchased
separately if desired by the customer. The cable for connecting the remote control to the boiler is
not included in the remote control’s supply package and is purchased separately. The standard
cable consists of a connector for connecting the remote control to the electronic board, two wires
1 meter long and a terminal strip for connecting the wires. If the cable is long enough, it is
necessary to disconnect the terminal strip and connect the cable wires to the remote control (see
the instructions for the remote control). If a connection wires’ length of more than 1 meter is
required, it is necessary to connect two additional wires of required length to the terminal strip of
the cable , herewith the wires must be convolved like a twisted pair wire. The main requirements
for choosing wires are:
-maximum wire length is 29 meters (plus 1 meter standard cable);
-flexible copper multiple-core cable with cross sectional area of 0,5…1,5 mm2, Technical staff manual
10.3.3. Connection of external temperature sensor
It is recommended to use an external (outdoor) temperature sensor of the TPEB type. The sensor
is connected to the terminal strip of the room thermostat’s connector (installed into the connector
M10), see Annex III, page 66). It is necessary to control that the plug wire is installed in the
room thermostat’s connector on the contacts 28 and 29. In case of connecting the remote control
together with the external sensor to the boiler it is necessary to remove the plug wire from the
contacts 28 and 29 in the room thermostat’s connector and give it to the boiler’s owner so that he
keeps it.
The cable for connecting the external sensor to the boiler is not included into the sensor’s supply
package. The main requirements for choosing the cable are similar to the requirements listed in
p. 10.3.1. The connecting instruction of the sensor is supplied together with it.
10.3.4. Connection of a computer for diagnostics
The electronic board provides a possibility of connecting a stationary or portable computer for
boiler operation parameters diagnostics to the M7 connector (see Annex III, page 66). For this a
special program and an connector for connecting the electronic board with the computer is
needed (presence of COM port on the computer is necessary).
10.4. Switching the boiler off
It is necessary to switch the boiler off before starting reparation works or maintenance service. It
is recommended to switch the boiler off in the following sequence:
1) To render the boiler to standby mode, consequently pressing the button K5;
2) To disconnect the power cable plug from the AC outlet of the power line;
3) To close gas, heat carrier and DHW water stop valves.
10.5. Water drain from the boiler’s CH
At CH’s elements dismantling it is necessary to drain the heat carrier from the boiler. For
this it is necessary to twist off the drain valve 21 (see p. 13.1, page 27).