Gas boiler Proterm Bear KLZ with a boiler. Gas boiler Proterm Medved KLZ with boiler Electrical connection

Double-circuit cast-iron gas floor boiler Protherm Bear 50 KLZ with an open combustion chamber, 49 kW for heating and hot water in a built-in 90 liter boiler. Designed for installation in residential buildings, country houses and industrial premises.

Electric ignition. Smooth regulation of boiler power for various modes of its operation. Possibility of installing a fan for the forced removal of flue gases

Display of the temperature and pressure of the heat carrier from the heating system, which allows you to continuously receive information at any time during the operation of the boiler

When connecting room regulators, the boiler control system allows you to maintain a comfortable microclimate in the premises.

Gas boilers Protherm Bear KLZ is the simplest solution for those who do not want to worry not only about heat, but also about the availability of hot water. Floor double-circuit boilers Proterm Medved with a cast-iron heat exchanger have a built-in boiler with a volume of 90 liters or more.

Protherm Bear 50 KLZ is supplied already assembled, which makes transport and installation of the boiler as easy as possible. The ability to replace the cast iron sections of the heat exchanger significantly reduces repair and maintenance costs, and allows you to extend the life of your boiler.

Technical features of Protherm Bear 50 KLZ:

Designed for systems with closed coolant circulation
Cast iron double pass heat exchanger
Open combustion chamber
Possibility of preparing hot water in the built-in 90 liter storage boiler
Efficiency 90-92%
Atmospheric stainless steel burner
Smooth regulation of boiler power
Electric ignition
Boiler control with built-in microprocessor
Built-in 10 liter expansion tank
Integrated heating circuit pump
Built-in hot water circuit pump
Control mode "WINTER-SUMMER"
Indication of coolant pressure in the heating system
Heat carrier temperature indication
Automatic diagnostics of boiler operation
Independent control of the heat loads of the heating circuit and the hot water circuit
Ability to work with weather-dependent automation
Protection of the cast iron heat exchanger against condensate
Chimney draft control
Overheat protection (pump overrun)
Flame control
Circulation pump anti-blocking system
Frost protection
Limitation of frequent switching on of the boiler
Possibility of installing a fan for the forced removal of flue gases
Cooling circuit (prevents the temperature of the coolant in the boiler from rising above 1100C)
Resistant to difficult hydraulic conditions
Delivery of the boiler already assembled
Possibility to replace middle cast iron sections
Ease of installation, care and maintenance
Possibility of work on the main and liquefied gas

Protherm Bear KLZ- floor cast iron gas boilers with a capacity of 18 to 49 kW for heating and providing hot water in a 95 liter boiler. They are focused on installation in private houses, cottages and any industrial premises.
The number of advantages of this modification just rolls over.

Electric ignition, for example, is one of them. It provides smooth power control for different operating modes.
KLZ model boilers are provided with a built-in microprocessor that performs a lot of very useful functions, such as comprehensive control of the overall operation of the boiler, equithermal regulation, continuous modulation, display of all temperatures and pressure, pump overrun and soft start of the boiler. And most importantly, it protects the boiler and tank from freezing.
Another equally important factor is the possibility of further installation of a fan, which, if necessary, will forcibly remove flue gases.

Moreover, when connecting room regulators, the control system will regularly maintain a comfortable, just for you, room microclimate.
Such boilers operate on low pressure natural gas, there is a mode of operation on liquefied gas. It should be noted that in order to transfer the operation of the boiler to liquefied gas, it is necessary to install cooling rods, replace the nozzles, and also adjust the pressure parameters on the valve.

If the power supply suddenly stops for any reason, the boiler will turn off, and at the first resumption of the power supply, it will start working, retaining all previous system settings.
The control system of such a boiler has a timer and an equithermal regulator. The built-in timer in the control panel will allow you to pre-select time intervals during the day when you need to provide thermal comfort, and others with a lower temperature, such as night. In boilers of this type with a cast-iron heat exchanger, there is a built-in boiler with a volume of 90 liters or more.

There are four models of floor gas boilers of the type Protherm Bear KLZ. They differ in diameter, each diameter in turn is responsible for heating a certain area of ​​\u200b\u200bthe room.
Each of the available modifications, for example Protherm KLZ 40, is delivered already assembled, which definitely facilitates transportation, as well as installation. The possible replacement of the cast iron sections of the heat exchanger significantly reduces the cost of repairs and maintenance, and thus allows to extend the life of the boiler.
Gas floor standing boilers Protherm Bear KLZ are the most versatile solution for a class of people who do not want to worry about heat or hot water.

With built-in boiler for 90 liters. In addition, the boiler already has two circulation pumps for heating and hot water, as well as two expansion tanks for 4 and 10 liters. It is also possible to install weather-compensated automation and devices operating on the eBus bus. A kind of 2 in 1 option for those who do not want a ready-made solution with a constant supply of hot water. In terms of DHW performance, it is perfect for a family of 2-3 people.

As with the entire Bear range, the KLZ model can run on liquefied gas.

Hot water is prepared in an oval container with a coil-type heating element. As in indirect heating boilers, a coolant flows through the coil, which heats the water in the boiler. Material of an internal covering of a tank — enamel. Traditionally, the boiler has a magnesium anode to prevent corrosion. The thermal insulation is made of polyurethane. Also, an expansion tank of 4 liters for the DHW circuit is already installed in the boiler.

This boiler has an outlet for DHW recirculation, which allows you to provide hot water immediately after opening the tap.

Technical characteristics of the boiler Medved KLZ R17

Dimensions and connection pipes of the boiler Medved KLZ

The platform under the boiler must be strong enough to support the weight of the boiler and must not be slippery. If the platform is made of combustible material, it is necessary to put a non-combustible substrate that will protrude beyond the dimensions of the boiler by at least 10 cm.

Floor standing boiler Proterm Bear KLZ - drawing

• A - Cold water inlet 3/4"
• B - 3/4" DHW circulation pipe
• C - DHW outlet 3/4"
• D - Heating system return 1"
• E - Heating flow 1"
• F - Gas connection 3/4

The boiler comes with adjustable feet to increase stability and the possibility of balancing the boiler.

Working diagram of the boiler KLZ

Please note that the turbo adapter is not included and must be purchased separately. Also, when buying a turbocharger, you must definitely take it for your version of the boiler. Turbo attachments from the KLOM R17 model are not suitable for earlier versions of the boiler.

If you want to know which turbo adapter is suitable for your version of the boiler, write the boiler model in the comments and I will help you choose the right one.

Of the advantages, it is worth noting that the boiler comes with safety fittings - safety and check valves.

Design features of the boiler Medved KLZ

Of the main features - this is an updated design - an informative LCD display and control buttons. Also, the ability to work on the eBUS bus was added.

Boiler connection diagram Medved KLZ

Yes, this scheme involves connecting the boiler to a room thermostat, an outdoor temperature sensor and a turbo extension.

When buying this boiler, do not be stingy and purchase a room regulator and an outdoor temperature sensor (article 0020040797). In this bundle, the boiler reaches a new level of comfort, and the cost of this equipment is only from 3,000 to 8,000 thousand, depending on the model of the thermostat.