The Rinnai gas boiler is produced by a Japanese heating equipment concern. The unit has good technical and operational characteristics, fits compactly into the interior of the room. The technique replaces the person in the matter of adjustment and control, the choice of the operating mode is automatic and depends on the pressure of the air-gas mixture.
Description of Rinnai boilers
A module for proportional temperature control is installed in the equipment design. The installation automatically coordinates the favorable ratio of the gas-air mixture in the furnace. The operation is controlled by an electronic microprocessor, including touch sensors. The technical solution modulates the output power range of 20 - 100% and provides a coefficient of performance at 96%.
The unit operates stably at low pressure in the gas line (from 3 mbar), which is important for consumers. Automatic adjustment reduces fuel consumption, increases the operating time of the heat exchanger and other modules, prevents the appearance of soot and soot.
High performance is due to the use of a special design burner that creates the desired draft and regulates the gas concentration. Exhaust combustion products are discharged through a coaxial chimney.
The boiler is controlled using the remote control, the protection system is configured from it and self-diagnosis is carried out.
Rinnay Boiler Series
Each series is issued for work in certain conditions. All types of Rinnai boilers of the Japanese manufacturer differ in similar technical properties, the difference lies in the complexity of the control systems and the power of the units.
4 series are produced:
- RMF
- EMF
- GMF;
- SMF
Boilers are designed to organize heating and water heating in the water supply system in private buildings and in production. The equipment runs on liquefied gas and natural fuel from a centralized pipeline. The units have received quality certificates after appropriate tests and satisfy the requirements for safe operation.
RMF
This version includes dual-circuit wall-mounted gas boilers with increased functionality and reduced noise level during operation. A color screen is provided on the remote control, there is a voice control order, weather change sensors, control of freezing and overheating.
Work Parameters:
- minimum pressure in the pipes for operation 205 l / min;
- stops functioning when reduced to 1.5 l / min;
- power 19 - 42 kW;
- heated area 200 - 420 m2;
- expansion capacity of 8l.
The power of the units can be reduced by 20% when the heating is turned on, and the energy temperature is regulated by the electronic module. The gas boiler Rinnai works in the mode of periodic switching on for heating, and there is always hot water in the water supply. Installed ECO program for environmental monitoring. The series includes models 367, 257, 167, RB-107, 207.307.
EMF
The Reneit equipment of this series runs on liquefied and main gas; nozzles must be reinstalled to select the type of fuel. The subgroup is characterized by increased environmental friendliness. The atmosphere receives a minimum amount of toxic combustion products, which are discharged using a coaxial chimney.
Parameters of the series units:
- boiler power is 12 - 42 kW;
- minimum consumption of hot water - 2.7 l / min;
- gas consumption from the highway - 1.15 - 4.15 m3 / h, liquefied resource - 1 - 3.4 m3 / h;
- expander volume - 8.5 l;
- heating of the heat carrier up to + 85 ° С, hot water - + 60 ° С.
A three-level automation module controls the intensity of the flame and the heating of the energy source in the system depending on weather conditions and the season. Functional errors are diagnosed and displayed in digital and text code. Electronics coordinates the operation of the fan and the flow of air for purging. The series includes models 366, 256, RB-166, 306, 206.
GMF
Rinnai Green Series boilers are modernized and improved based on the SMF series. The units do not pollute the atmosphere and have received an environmental mark in Japan and Korea. They are considered safe, because in boilers the minimum level of emission of carbon monoxide and nitrogen dioxide is achieved, thanks to the system of efficient combustion of fuel.
The functioning parameters of the series models:
- power - 12 - 42 kW;
- stable operation with a drop in gas pressure - up to 4.5 mbar;
- power is regulated in the range of 25 - 100%.
GMF boilers reliably operate on liquefied fuel, has a high efficiency. The burners ignite smoothly and turn on less frequently; soot does not accumulate in the furnace and nozzles.
SMF
The equipment of the series heats an area of 100 - 400 m2, has 2 heat exchangers. The first is made of copper, the second is characterized by a high speed of the process and passes 14 l / min. The turbo-charged electric burner smoothly regulates the air-fuel mixture according to the volume of fuel.
Series operation parameters:
- power - 18 - 42 kW;
- coefficient of performance - 90%;
- DHW flow rate - 2.7 l / min;
- heating medium temperature - up to + 80 ° С, water - up to + 60 ° С.
The pump is controlled by an electronic remote control. The processor regularly monitors the results of the sensors and sends information to the working modules.
Key features of Rinnay boilers
The equipment has a separate chimney, pipe and air intake system, which makes it possible to connect chimneys of any type. The design of the burner allows you to adjust the power and determine the economical operating procedure.
Security systems warn and monitor:
- clogged heat exchanger and chimney;
- burning stop;
- equipment overheating;
- high pressure in the heating line;
- low water level in the circuits;
- defrosting an idle boiler;
- defrosting the heat exchanger;
- electric shock;
- cessation of circulation in the boiler.
The unit operates in an open and closed type system. In separate rooms thermostats are installed to adjust the degree of heating. The pump with an open rotor effectively cools and prevents contact of electrical equipment with water. The magnetic coupling does not require an oil seal and prevents leaks in the pump.
Advantages and disadvantages
The equipment has an additional saving program and a multi-level protective system (10 degrees). Renay boiler is produced with an original design, it is controlled simply using a remote control. The unit provides a uniform, stable temperature of hot water, the degree of heating of the energy carrier is regulated by the environment. It has a long working life without changing the efficiency, thanks to the quality control during the release and the efficient control unit in the boiler.
The disadvantages include a large step on the temperature adjustment scale, which sometimes does not allow you to set the desired value.
Error Codes and Troubleshooting
The display shows an alphanumeric designation. The combination corresponds to a specific problem in the operation of the equipment. Error codes are used to identify breakdowns, malfunctioning of the processor, incorrect installation of user data.
Error 99
The numbers light up when problems arise with the removal of combustion products. An error occurs on the display when it is difficult to remove smoke from 90 seconds.
Initial Actions:
- analyze the functioning of the fan;
- inspect the heat exchanger plates, clean them if necessary;
- check the correct installation of the chimney.
Each unit is characterized by a peculiar device and unique automation, therefore, only a specialist knows numerous features during repair or after-sales service. The owner of the boiler must contact a service center if a malfunction is detected.
The popular Rinnay boiler models
RB-167 RMF is suitable for heating a private building with an area of 150 - 180 m2, its power is 18.6 kW. A stable, reliable and quiet unit with an efficiency of 85.5% and a fuel consumption of 2.05 m3 is mounted on the wall and works on a convection principle.
RB-167 EMF is a modification of the previous model, has a capacity of 18.7 kW and shows an efficiency of 88.3%. Gas consumption - 1.84 m3 / hour. There is no possibility to install a functioning program for a week on the remote control; there is no frost protection and weather dependence mode.
RB-207 RMF (BR-R24) is a popular and well-known model. Heats the area up to 230 m2, involves feeding two circuits and an efficiency of 86.4%. There is protection against freezing, overheating, a program for selecting a mode for a long period is installed.
BR-UE30 is a single-circuit wall model with the ability to connect a boiler. Efficiency is 91.7% with a fuel consumption of 2.85 m3 / h and a power of 29 kW. The heat exchanger is made of copper, the burners operate on the principle of turbocharging. The housing is insulated from noise.
RB-277 CMF is used to connect two circuits, the power is 29.6 kW. Efficiency reaches 100%, gas consumption - 1.84 m3 / h. To eliminate error 99, there is an adjustment of the exhaust fan.
