When buying any heating equipment, the user receives instructions. It describes all the points that relate not only to the installation of the unit, but also to its operation. The Proterm Skat 9 kW boiler is no exception. Of course, for some reason, the instruction was lost, then it will not work to start heating the house. After all, an electric boiler must be properly configured. There are certain rules for the installation and operation of an electrical unit. They must be observed. Otherwise, the equipment will not work correctly.

Advantage of the electric boiler Proter Skat

The Proterm Skat unit has a number of advantages. Such heating equipment has become a good alternative to gas heating devices. The popularity of Proterm Skat boilers is increasing every year. After all, such units are ideal for heating houses that are not connected to the main gas pipeline. Electric boilers of this modification are simply irreplaceable for country cottages with periodic or seasonal residence.

Among the advantages of such units, the following should be highlighted:

It is worth noting that electric boilers Proterm Skat during their existence have established themselves as economical and safe heating devices.

Installation features

Boilers Proterm Skat 9 kW are supplied with all the necessary fasteners and elements. Besides the kit includes an instruction, where the process of connecting and setting up the unit is described step by step... It is worth noting that models that differ in power have exactly the same principle of installation, operation, and settings.

Before installing the heating equipment Proterm Skat, it is necessary to coordinate all work with electrical distribution services.

Electric boilers Proterm Skat with a power of 9 kW can be connected to the usual 220V power supply... The installation of such heating equipment is carried out using a fastening strip. Such a unit does not have certain restrictions on the choice of the installation site. Of course, there are some requirements - you need free access for service, maintenance, adjustment and repair of heating equipment.

How to install

The electric boiler Proterm Skat is connected to the pipe system using pipes. The connection of the heater is carried out so that the coolant can be drained without hindrance in the event of a malfunction during operation without affecting the entire system. Additional valves allow you to fill the system with a coolant and drain it. also, in order to exclude freezing of water in houses with seasonal residence during the cold period, experts recommend removing the coolant completely from the system before the temperatures drop.

The Proterm Skat boiler is connected to the power grid through a power line supplied separately. The mains cable is connected to the terminals, which are located in the lower corner of the housing. Carefully tighten all screws on the connectors. A 9 kW boiler can be connected to a single-phase network.

How to use the boiler Proterm Skat

The process of operating the electric boiler Proterm Skat does not cause any particular difficulties. After all, something like that heating equipment is equipped with systems for control and regulation... In order for the device to start working, you need to do just a few simple steps:

1. Connect the unit to the power supply.
2. Select the required temperature mode on the control panel of the heating equipment.
3. Adjust the power of the unit.
4. Carry out a more accurate setting of the temperature regime.
5. Change the pressure level in the system if necessary.

After the performed manipulations, you must press the "Start" button. That's all the Proterm skat boiler is ready for use. During the first few days of operation, it is worth monitoring the operation of the unit and, if necessary, adjusting the temperature regime. This will allow you to identify some problems in the operation of the unit caused by the presence of air locks in the system.

The gas boiler Protherm (Proterm) is produced by the well-known company Protherm, founded in Slovakia more than a quarter of a century ago. The model range of this manufacturer is characterized by a successful combination of the level of heating power and indicators of energy efficiency.

Model range of Protherm boilers - single-circuit and double-circuit

Proterm gas equipment is produced by a European manufacturer in several modifications, which allows you to choose the model that is optimal in terms of functionality, as well as a practical and most convenient model in operation.

Wall type

Wall-mounted gas equipment has undeniable advantages, including compact size, external aesthetics, excellent operational properties, the ability to adapt to operation with different energy carriers by means of a standard nozzle replacement, as well as cost effectiveness.

• "Panther". Inexpensive model with two heat exchangers and water heating. A modern heater with the ability to operate in a closed system. It has reliable frost protection, automatic gas cut-off and pump control.

Inexpensive heater option in the Protherm line

• "Jaguar". A low-cost option of equipment that does not have a winter / summer mode. Double-circuit unit with a closed type of combustion chamber and control by means of handles.

Simple model with the minimum required set of functions

• "Cheetah". Double-circuit turbocharged boiler with a capacity of 11-23 kW and a closed combustion chamber. Even low-power models are capable of heating 10-11 liters of water in one minute. A wall-mounted device in which the movement of the heat carrier is carried out forcibly.

Turbocharged boiler with high efficiency

• "Tiger". It features a neat appearance, informative LCD display and very simple operation. There is a possibility of programming for different modes of operation or functioning in the automatic mode "comfort". There is a possibility of automatic regulation of the combustion process, it is distinguished by a special ignition system.

Compact equipment with different operating modes

Main characteristics of the boiler

Floor type

Floor standing single-circuit and double-circuit boilers have several advantages that make this type of equipment in demand among consumers. It is impossible to ignore high performance indicators, maximum heat transfer efficiency, economical fuel consumption, wide functionality and guaranteed durability.

• "Bear". The high quality cast iron heat exchanger makes the unit durable and very reliable. The model has a "Winter-summer" mode and convenient traction control. It has automatic regulation of the combustion process and is distinguished by a special ignition system.

Cast iron heat exchanger assumes long-term operation of the boiler

• "Buffalo". An easy-to-use and durable boiler with high efficiency, capable of operating on various types of fuel. A very powerful unit with a high degree of reliability.

Powerful equipment that can run on different types of fuel

The main characteristics of the Bison model

Floor standing boiler with reliable heat exchanger

Main characteristics of the model

Stationary heating gas boiler

Main characteristics of the model Bear KLOM17

Gas boiler device Proterm

Various modifications have individual characteristics of the device.

The manufacture of boilers using low-temperature cast iron contributes to the effective minimization of heat losses. A feature of the device of heating devices of the brand "Proterm" is also an unusual, rather environmentally friendly way of burning fuel.

The main units of gas heating equipment are:

• ignition system;
• burner;
• heat exchanger.

The heat source is represented by the flame of the burner, in which the gas is burned, and the heat exchanger is responsible for heating the heat carrier. The gas supply process is controlled by a thermostat, while the combustion products, represented mainly by water vapor and carbon dioxide, are removed through the chimney system.

Proterm boilers are used for heating and hot water supply

How to connect and configure

Basic conditions for the installation of gas heating equipment from the manufacturer "Proterm":

• the installation of the boiler and the necessary auxiliary equipment is carried out in accordance with the project documentation, taking into account the requirements of SNiP and the manufacturer's recommendations;
• installation of equipment is carried out in a room specially designed for this purpose, and with a special modification of the unit - exclusively in well-ventilated annexes;
• the process of installation and commissioning is carried out by specialists who have completed the training course for the installation and maintenance of gas equipment;
• elimination of any boiler malfunctions is performed by a service organization authorized by the manufacturer of heating and hot water equipment;
• independent work on installation entails depriving the consumer of the warranty for the unit and its repair;
• when unpacking the heating equipment, the completeness of the supplied boiler and the compliance with the type of fuel used must be checked.

Before proceeding with the installation, you need to carefully read the attached instructions, and during the installation process, all the recommendations given in the accompanying documents must be observed. Equipment markings must not be damaged or removed.

Standard technology for connecting and setting up a gas boiler:

• fixing the unit to the wall is carried out by means of screws with appropriate gaskets;
• nozzles for connection should not be loaded with a pipe heating system, a hot water system or gas supply elements;
• the installation dimension of the connection of the pipes, including their height and the required distance from inlet to outlet, must be strictly observed;
• the placement of the hydraulic group is carried out on the lower part of the gas equipment, and the system is necessarily equipped with a filling valve and safety and relief valves;
• in conditions of exceeding the maximum pressure indicators inside the system, steam or water is discharged from the safety relief valves;
• connecting the unit to the heating system presupposes the ability to carry out the full scope of preventive maintenance and repair work;
• water is delivered to the heating system by means of a filling tap, and a drain device is used to lower the pressure or partially drain the heat carrier;
• full-fledged drain and filling functions are possessed by special exits installed on dedicated sections of the heating system;
• the pressure of the hot water supply at the supply to the equipment must exceed those in the heating system;
• in the position of the valve "Filling" (hydraulic group), it is imperative to check the operation of the system by means of a boiler pressure gauge;
• valves are opened counterclockwise and closed strictly clockwise.

The items of boiler equipment maintenance under the warranty do not include measures presented by de-airing and adjusting the expansion tank.

Video: Connecting the boiler Proterm

Video: Configuring Protherm Equipment

Brief operating instructions

Competent setting of gas boilers Protherm provides optimal temperature conditions in rooms of different purpose and area. Among other things, the regulation of the automation of such equipment contributes to an increase in the efficiency of the unit, and also makes its operation reliable and safe. Modern automation solves problems:

• opening and closing fittings in the gas supply system;
• the process of starting the unit in automatic mode;
• installed or emergency shutdown of boiler equipment;
• regulation of the flame level in the burner by means of a temperature sensor;
• displaying air temperature indicators, heating agent heating level and other parameters on the screen.

Instructions for setting up a gas boiler:

• connecting the thermostat to a temperature sensor fixed in the room, and setting the required values ​​allow you to obtain a comfortable temperature regime for heating;
• the installation of a thermostatic valve on the supply pipes in front of the heating radiators helps to change the cross-sectional area and easily carry out the process of regulating the temperature of the heat carrier;
• the first start-up of the system at the limiting temperature allows the used coolant to freely enter the tank, which contributes to its maximum filling;
• the efficiency increase is facilitated by the timely removal of scale and soot, as well as control of the lack of air in the system and the installation of a draft limiter;
• regulation of pressure indicators is carried out using special valve regulators, and in order to increase the pressure, a circulation pump is installed;
• the reduction of the boiler burner power is carried out automatically through the service menu, and the power regulation for increase is carried out by installing additional radiators or replacing the existing ones with the most powerful models;
• many units are characterized by full performance at a pressure of 1.5 atm., and normally this value is 0.3 atm. lower than the indicators in the heating system;
• a slight decrease in the pressure level in the unit is restored during a standard restart;
• automatic selection of the operating mode of the gas boiler helps to maintain the desired temperature level even with a long absence of consumers in the room.

The process of switching on the boiler for the first time is accompanied by its short and energetic operation after the unit is fully connected to the heating system, which makes it easy to check the correctness of the installation of the boiler equipment and the full functioning of the heating.

Common errors and malfunctions

Some of the most common malfunctions of Proterm gas boilers can be completely eliminated on your own, but the correction of the most difficult errors must be entrusted to the professionals of the service center.

Modern heating equipment from a manufacturer from Slovakia, which category includes single and double-circuit gas boilers Protherm, is distinguished by high reliability and model variety. These solid and inexpensive boilers of European quality from the "middle class" are deservedly popular and are invariably in demand by domestic consumers.

The well-known Slovak company Protherm has won trust due to the high quality and reliability of the equipment produced. Careful study of the needs of customers, trends in demand for various models of manufactured devices allowed the company to gain a leading position in the market.

The company produces dozens: floor-standing and wall-mounted, and with open and closed combustion chambers. Particularly popular are the two-circuit wall-mounted gas boilers Proterm, to which this article is devoted.

Description of the double-circuit boiler Proterm

Boilers that have the function of heating service water are called double-circuit, because they heat water for two systems - a heating circuit and a hot water supply system (DHW).

The DHW system in such boilers, if necessary, can function separately from the heating system. This mode is necessary to supply the house with hot water in the summer.

Wall-mounted double-circuit models are presented in a wide range of capacities - from 11 to 30 kV, which allows the buyer to choose the best option depending on the heated area.

In wall-mounted boilers, a mechanism is provided for releasing the combustion chamber from exhaust gases. This is done in two ways. The first is the forced removal of residual gases using a fan, such a combustion chamber is called closed. The second option is that the gases are given the opportunity to independently leave the room through the chimney, this chamber is open.

All Proterm products are equipped with the most modern systems of automatic control, management and protection.

Distinctive features

By installing a Proterm double-circuit gas boiler in your home, you will become the owner of a real home boiler room, which, in addition to the standard functions, will provide your household with hot water.

The following are the main distinguishing features of the Proterm line of gas boilers:

• profitability, ease of use;
• a large selection of models - in terms of price, power, functionality, protection capabilities;
• price-quality ratio - one of the best among manufacturers of similar equipment;
• high efficiency (over 90%);
• models with built-in boiler are available.

Important! Gas boilers Proterm are adapted for Russian conditions - they can function normally even with reduced gas or water pressure in the mains.

Gas boilers produced by Proterm during operation will not disappoint you and will meet the most daring expectations.

Model range of boilers Proterm

The range of heating boilers offered by Proterm is wide and varied. The catalog of manufactured products includes:

1. electric boilers;
2. solid fuel, wood-fired and coal-fired;
3. universal units that can run on gas and diesel;
4. industrial boilers with increased power;

The range of gas boilers Proterm includes two types: and. The company manufactures gas boilers ranging from small wall-mounted devices weighing 30 kg to heavy floor-standing units, the most famous of which is the Proterm two-circuit gas boiler model Medved 30 KLZ weighing 155 kg.

As for double-circuit wall-mounted devices, there are 5 series of them:

• Panther (Panther).
• Jaguar (Jaguar).
• Lynx (Rys).
• Cheetah (Gepard).
• Tiger (Tigr).

Each series includes several models that differ in power, performance, price and some other parameters. In particular, the devices of the Panther, Cheetah and Tiger series include models with both closed and open combustion chambers. A typical representative is the Proterm Panther 25 KTV double-circuit gas boiler with a capacity of 25 kW, which has a device for forced removal of exhaust gases from a closed chamber.

Specifications

The main technical characteristics, for ease of comparison and speeding up the search for the necessary information, are summarized in Table 1.

Abbreviations: ОВ - heating water, DHW - hot water supply.

Explanation of the code in the model name:

1. a two-digit figure corresponds to the nominal power consumption in kW;
2. the first letter - in combination with the third, designates the model;
3. the second letter is the type of combustion chamber: O - open, K, T - closed;
4. the third letter is the type of boiler: V, Z - double-circuit, O - single-circuit.

In addition to the parameters indicated in the table, all wall-mounted double-circuit boilers have a number of other characteristics. In particular, they have the following protection systems:

• safety valve for dumping the coolant when the pressure in the system rises;
• protection of the circulation pump from jamming;
• protection of water pipes from freezing;
• gas control - stops the gas supply to the burner if the flame suddenly goes out;
• air vent - getting rid of the trapped air from the heating system;
• protection of the boiler against overheating by means of a thermostat.

The electronic control system for gas boilers performs the following functions:

1. microprocessor control;
2. device status control;
3. room temperature regulation;
4. display of current readings of temperature and codes of malfunctions.

Maintenance by service center

Annually, preferably before the first start-up after a summer break, it is recommended to invite a specialist from a certified service organization to inspect and check the boiler. During the routine inspection, the condition of the gas burner is checked, the power is adjusted, the burner nozzles and heat exchangers are cleaned. A particularly important part of the inspection is checking the operation of the emergency thermostat and the combustion chamber thermostat.

Attention! When cleaning the gas burner nozzles, their inner diameter must never be changed!

Boiler maintenance by the user

Cleaning the casing of the unit without removing the protective cover. Should be carried out after disconnecting the device from the network. The power supply is allowed only after complete drying.

The water pressure in the heating circuit must be checked weekly. If necessary, make up after the unit has cooled down to below 400 ° C.

It is necessary regularly, at least once every three months, to check the tightness of the chimney system connections, the cleanliness of the filter and the dirt collector, and remove dirt if necessary.

If a gas leak is detected, the device must be turned off immediately, the gas valve must be closed and a specialist of the service organization must be called. It is not recommended to repair the unit yourself. For example, the operating manual for the wall-mounted double-circuit gas boiler Cheetah produced by Proterm does not recommend trying to fix the malfunction yourself, so as not to lose the company's guarantees.

If you have a country house, and communications are not connected to it, then you can solve the issue expressed in the need for a heating device and provide water heating with the help of boiler equipment. The main thing in this case is to make the right choice, because such an installation will occupy a central place in the house and the heating system. The choice should be made guided by the rules of safety and reliability.

Modern heating equipment is offered in a huge range. You can choose a floor-standing or wall-mounted model, with or without a chimney, non-volatile or powered by electricity. Modern manufacturers offer for sale single-circuit and double-circuit options for heating equipment. The former will be able to make the house more comfortable and cozy, while the latter will allow you to use hot water. Before making a choice, you need to read the reviews, boilers "Proterm" are not an exception to this rule. They are offered in a wide range, can have different power and technical characteristics, you can read about this below.

Review of boilers from the manufacturer "Proterm": "Medved 50 KLZ"

This model of equipment costs 143,914 rubles. It is a gas floor boiler that can run on mains fuel. The consumer will have the opportunity to provide a connection to liquefied gas. The equipment is double-circuit and is used for heating, as well as for hot water supply. The design has an open combustion chamber.

A fan must be connected to remove the combustion products. This Proterm Medved boiler has a 10 liter expansion tank. The heat exchanger is based on cast iron, which increases the reliability and service life of the boiler. The manufacturer made sure that the unit is protected from overheating of the coolant in the system. For this, the engineers provided the model with a cooling circuit. Convenient start-up of the device is provided by electric ignition.

Considering the model of heating equipment "Medved 50 KLZ", it can be mentioned that it has a power equal to 49 kW. Modulating burner. The maximum power consumption is 50 kW. The gas temperature at minimum and maximum power is 115 ° C.

You may also be interested in how liquefied gas is consumed, the value is 3.8 kg per hour. Heating temperature is equivalent to 85 ° C. At 25 ° C of the heating medium, the productivity reaches 21 liters per minute. If the dimensions of the boiler room are limited, then you should inquire about the design parameters, they are 1385x505x892 mm. The device weighs 210 kg. It belongs to the X4D protection class. The volume of the expansion tank is 10 liters.

The outlet temperature of the coolant can be up to 70 ° C. Possible natural gas pressure is 0.013 bar. The maximum consumption of natural gas is 35.2 m 3 / h. If you plan to connect the equipment on your own, then you may need a chimney diameter, which is 180 mm. At 100% thermal power, the efficiency of the equipment is 92%.

Model reviews

The above-described heating boiler "Proterm", according to consumers, has many positive features, among them should be highlighted:

• simple control;
• high efficiency;
• independent regulation of heat loads;
• the possibility of replacing the middle cast iron sections.

As for the ease of operation, it is provided by an external panel with which you can adjust and monitor the parameters of the floor model. Consumers emphasize that this equipment is used for systems with closed circulation of the coolant.

The device is controlled by a built-in microprocessor. Buyers, in their words, quite often choose this model for the reason that it provides the ability to independently adjust the thermal loads of the hot water supply and heating circuit. The unit is also good because it is resistant to difficult hydraulic conditions.

User manual

After you familiarize yourself with the characteristics of the Proterm boiler, which you have bought or are just planning to purchase, it will not be superfluous to ask what operating rules the manufacturer prescribes. Quite often, this allows you to extend the life of the equipment or exclude its breakdown. As for the above model, it is necessary to install it only in specially equipped rooms.

The device is put into operation only after testing. It is important to follow the safety regulations. They state that the norms for gas supply must be taken into account. You can independently set the temperature of the water in the boiler. This also applies to the heating temperature. The operator will then have to press the MODE button.

To set the time intervals for heating water in the boiler, use a timer. The operation of the Proterm gas boiler is also convenient because on the panel you can see equipment messages about errors that occur during operation. For example, if you see the code F1, it will indicate a loss of flame. But the designation F2 indicates that the boiler temperature sensor was faulty.

Review of the wall-mounted boiler brand "Cheetah 23 MTV"

Another version of the equipment from the manufacturer "Proterm" - "Cheetah 23 MTV". You can buy this model for 42 088 rubles. The device was developed in 2015 and is used for heating as well as hot water supply.

The design provides for a closed combustion chamber, which allows the use of a coaxial chimney. The boiler has a copper primary heat exchanger. The burner is made of chrome-nickel steel. The heat exchanger in the device is plate made of stainless steel.

Specifications

The above described boiler "Proterm Gepard" has a capacity of 24.6 kW. Power consumption reaches 156 watts. Buyers are often interested in the maximum consumption of natural gas, it is 2.9 m 3 / h. The hot water leaving temperature can reach 65 ° C, while its minimum value is 35 ° C. Permissible natural gas pressure 0.02 bar. The expansion tank has a volume of 5 liters.

The equipment belongs to the X4D protection class. The unit weighs 34 kg, this should be taken into account, because the wall-mounted boiler "Proterm" must be securely fixed on a vertical surface. The flue gas temperature is 110 ° C. The maximum fuel consumption when using liquefied gas is 2.1 kg per hour. The heating temperature can reach 83 ° C, while the minimum value is 35 ° C. If you plan to install the device in cramped conditions, then the dimensions of the unit should be of particular interest to you, they are equal to 740x310x410 mm.

Among the main advantages of the above-described equipment option, consumers distinguish:

• closed combustion chamber;
• equipping with a coaxial exhaust gas system;
• the ability to receive information about the operation of the boiler using the liquid crystal display;
• automatic switching to hot water supply mode when the hot water tap is opened.

If we compare this model with the previous one in the line, then it was equipped with a display by the manufacturer. Its bright backlight allows the user to see the data even in a bright room. The boiler is durable and reliable, which is ensured by a hydraulic block made of composite material. This feature improves the model compared to the previous generation, where the units were equipped with valve bodies.

User manual

The boiler manual "Proterm" is supplied in the kit. It is very convenient, because immediately after purchase you can familiarize yourself with it in order to avoid mistakes when using the device. If the boiler is not used for its intended purpose, it may endanger human health and life. If during the operation of the equipment you notice a strong smell of gas, then you should open the doors and windows wide, creating a draft. Do not use open flames or smoke, or switch on plugs, telephones, and other intercoms in the building.

Do not store or use explosive or flammable substances such as paper, gasoline or paint in the same room as the boiler. Adequate air supply must be ensured for combustion. Protective devices do not need to be removed or bypassed during equipment operation. It is not recommended to carry out any manipulations with protective systems.

Review of the Panther 35 kW boiler

This gas boiler "Proterm" has an affordable cost, which is 63,398 rubles. The equipment is a two-circuit unit with a closed combustion chamber. The device provides for the presence of a primary heat exchanger and a plate heat exchanger for hot water supply, which is made of stainless steel. The liquid crystal display is located on the external panel, allowing the operator to see the data even in a bright room. The risk of freezing is reduced, as is overheating thanks to additional safety features.

Model Specifications

After reading the reviews about the boilers "Proterm", you can understand which model is better to choose. But it is also important to consider the technical characteristics. For example, the Panther model has a power of 35 kW. Power consumption reaches 175 watts. The flue gas temperature at minimum output is 102.9 ° C. This traditional boiler provides a maximum power consumption of 38.4 kW.

9

Boiler start

A warning: Boiler feed into
operation and its first start-up must
be produced only by a certified

by Protherm as a specialist
specialized organization!

When starting up the boiler for the first time, make sure
is that:

1.the boiler is connected to the electrical network and

in this case, the phase and zero are not confused.

2. the gas shut-off valve is open;
3.service taps for heating and hot water supply

4.the pressure in the heating system is

within the permissible range of 1 - 2 bars.
Install the main switch (fig. 1,
pos. 7) to the ON position (I). Boiler
will turn on and start working in the mode
heating water in the boiler (if the boiler
connected to the boiler). After heating the water in
boiler, the boiler will switch to mode
heating (provided that the mode
heating active). In case of protective

shutdown of the boiler on the panel display
control, a message will appear
malfunctions (see „Messages about
errors ", page 8). Using the button
RESET (fig. 1, pos. 6) unlock
boiler. If, after switching on, the protective
disconnection will be repeated, or impossible
will unblock the boiler,
contact your service organization.

Switching off the boiler

When the boiler is switched off for a short time
install the main switch (fig.
1, pos. 7) to the OFF (O) position.
When the boiler is turned off for a long
period you need to disconnect it from
electrical network and shut off the supply
gas into the boiler. If in winter the boiler
not used, then the heating system
must be emptied. but
frequent draining must be avoided and
make-up of the heating system in order to avoid
scale formation and deposits inside
boiler.

Boiler start-up and shutdown

Boiler regulation

Boiler operation without a room
regulator

according to the readings of the boiler sensor. V
terminal block XT5 on terminals 5 and 6 is
jumper (factory setting). Order
settings:

Switch on the boiler with the main switch;
set the required temperature

flow line on the control panel.

Boiler operation with room
thermostat

In this mode, the boiler maintains
set temperature in the heating system
by the room regulator. Jumper,
installed in terminal block XT5 on clamps
5 and 6 is removed. In its place is connected
room regulator. If indoors
with room regulator on radiators
thermostatic valves are installed,
it is necessary to translate them into completely
open position.
A warning: On the control panel

Meaning

Malfunction on-
hand sensor
temperature

The boiler works without restrictions, but the temperature

the coolant is regulated by the boiler sensor (see.
“Setting the heating temperature”, page 5).

If the boiler does not work in equithermal mode, then
a similar message cannot appear.