Protherm Bear KLZ- floor cast iron gas boilers power from 18 to 49 kW for heating and supply hot water in a 95 liter boiler. They are intended for installation in private homes, cottages and any industrial premises.
The number of advantages of this modification is simply off the charts.
Electric ignition, for example, is one of them. It provides smooth power control for different modes work.
KLZ model boilers are equipped with a built-in microprocessor that performs a lot of very useful functions, such as complex control general work boiler, equithermal regulation, continuous modulation, display of all temperatures and pressures, pump run-out 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 installing a fan, which, if necessary, will forcibly remove flue gases.
Moreover, when connecting room regulators, the control system will properly maintain a comfortable room microclimate just for you.
These boilers run on natural gas low pressure, there is a mode of operation on liquefied gas. It should be taken into account that in order to switch the boiler operation to liquefied gas, cooling rods must be installed, nozzles must be replaced, and the pressure parameters on the valve must be adjusted.
If the power supply suddenly stops for any reason, the boiler will turn off, and the first time the power supply is restored, it will start working, retaining all previous system settings.
The regulation system of such a boiler has a timer and an equithermal regulator. The timer built into the control panel will allow you to pre-select time intervals during the day when it is necessary to ensure thermal comfort, and others with a lower temperature, such as night. Boilers of this type with a cast iron heat exchanger have a built-in boiler with a volume of 90 liters or more.
There are four models of floor-standing gas boilers: Protherm Bear KLZ. They differ in diameter, each diameter in turn is responsible for heating a certain area of the room.
Each of the available modifications, for example Protherm KLZ 40, is delivered already in assembled form, which definitely makes transportation as well as installation easier. Possible replacement of cast iron sections of the heat exchanger significantly reduces repair costs and Maintenance, and thus allows you to extend the service life of the boiler.
Gas floor Protherm boilers Bear KLZ represent the most universal solution for the class of people who do not want to worry about heat or the availability of hot water.
Please note that the manufacturer's warranty is valid only if installation and commissioning were carried out by an employee of a specialized organization certified by the Protherm plant. At the same time, the presence of a Protherm certificate does not exclude the need for additional certification of personnel of a specialized organization in accordance with the regulations in force in the territory Russian Federation legislative and regulatory acts relating to the scope of activity of this organization.
The fulfillment of warranty obligations stipulated by current legislation in the region where Protherm equipment was installed is carried out by the seller of your device or an organization associated with it, authorized by a special agreement to carry out warranty and non-warranty repairs of Protherm products. Repairs can also be performed by an organization that is an authorized Protherm service center.
The company performing warranty or non-warranty repairs of Protherm equipment will, during the warranty period, eliminate free of charge all deficiencies identified by it that arose through the fault of the manufacturer. Specific warranty conditions and the duration of the warranty period are established and documented during the sale and commissioning of the device. Please pay attention to the need to fill out the “Sales Information” section, which includes the serial number of the device, sales marks and corresponding seals, dates of sale and the seller’s signature in the warranty cards located on the back of the product passport.
The manufacturer's warranty does not apply to products whose malfunctions are caused by transport damage, violation of transportation and storage rules, the use of anti-freezing coolants, contamination of any kind, including hardness salts, water freezing, unqualified installation and/or commissioning, non-compliance with operating instructions. installation and operation of equipment and accessories and other reasons beyond the control of the manufacturer, as well as installation and maintenance of the device.
The established service life is calculated from the moment of commissioning and is indicated in the documentation attached to the specific product.
The Protherm plant guarantees the possibility of purchasing any spare parts for this product for at least 8 years after its discontinuation.
For Protherm equipment and accessories, the manufacturer establishes a warranty period of 2 years from the date of commissioning, but not more than 2.5 years from the date of sale to the end consumer.
The warranty on spare parts is 6 months from the date of retail sales subject to installation of spare parts by a Protherm certified specialist.
If there is partial or complete absence of information about the sale and/or commissioning, confirmed by documents, the warranty period is calculated from the date of manufacture of the device. The serial number of the product contains information about the date of manufacture: numbers 3 and 4 - the year of manufacture, numbers 5 and 6 - the week of the year of manufacture.
An organization that is an authorized Protherm service center has the right to refuse warranty repairs to the end consumer for equipment commissioned by a third party if an authorized specialist service center the above reasons will be found and will exclude the manufacturer's warranty.
With built-in 90 liter boiler. In addition, the boiler already has two circulation pump for heating and hot water, as well as two expansion tanks of 4 and 10 liters. It is also possible to install weather-compensated automation and devices operating via the eBus bus. A kind of 2 in 1 option for those who don’t want 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.
Like the entire Bear line, the KLZ model can run on liquefied gas.
Hot water is prepared in an oval container with heating element type of coil. Same as in boilers indirect heating, a coolant flows through the coil, which heats the water in the boiler. Material internal covering baka - enamel. Traditionally, the boiler has a magnesium anode to prevent corrosion. Thermal insulation is made of polyurethane. Also, the boiler is already installed expansion tank 4 liters for the DHW circuit.
This boiler has a pipe outlet for DHW recirculation, which allows you to provide hot water immediately after opening the tap.
Technical characteristics of the boiler Bear KLZ R17
| The lineup | 20 KLZ 17 | 30 KLZ 17 | 40 KLZ 17 | 50 KLZ 17 |
|---|---|---|---|---|
| vendor code | 0010005748 | 0010005749 | 0010005750 | 0010005751 |
| Placement option | Floor | |||
| Electronically independent | No | |||
| Suitable for open systems heating | No | |||
| Suitable for closed systems heating | Yes | |||
| Number of circuits | Two (built-in boiler) | |||
| Fuel type | Gas | |||
| Running on natural gas | G20 | |||
| Work on liquefied gas | G31 | |||
| Burner type | Modulating, injection | |||
| Heating modes | Winter summer | |||
Heat exchanger Bear KLZ |
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| Material | Cast iron | |||
| Number of sections | 3 | 4 | 5 | 6 |
Heating circuit |
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| The combustion chamber | Open | |||
| Ignition type | Electric ignition | |||
| Net power, (gas) | 17 kW | 26 kW | 35 kW | 44.5 kW |
| Boiler capacity | 9.1 liters | 11.6 liters | 14.1 liters | 16.6 liters |
| Efficiency, % | 90 | |||
| Operating pressure | 0.5 - 3.0 Atm | |||
| Expansion tank | 10 liters | |||
| Flow temperature range | 45 to 85℃ | |||
DHW circuit |
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| Storage boiler | 90 liters | |||
| Expansion tank | 3.9 liters | |||
| DHW temperature range, ℃ | 40-70 | |||
| DHW consumption | 16.5 l/min | 18.0 l/min | 18.5 l/min | 19 l/min |
| Working pressure, atm | 1,0 — 6,0 | |||
| Hot water temperature range | 40 to 70℃ | |||
Gas circuit |
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| Pressure natural gas at the entrance | 20 mbar | |||
| LPG inlet pressure | 37 mbar | |||
| Maximum natural gas consumption at rated power | 2.0 m³/h | 3.1 m³/h | 4.1 m³/h | 5.2 m³/h |
| Maximum consumption of liquefied gas at rated power | 1.6 kg/h | 2.0 kg/h | 3.3 kg/h | 3.8 kg/h |
Control Panel Elements |
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| Liquid crystal display | Yes | |||
| Temperature display | Yes | |||
| Fault indication | Yes | |||
| Pressure indication | Yes | |||
Thermostats for Bear KLZ |
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| Exabasic | Compatible | |||
| Exacontrol | Compatible | |||
| Thermolink B | — | |||
| Thermolink P | Perfectly compatible | |||
| Thermolink S | Compatible | |||
| Exacontrol 7 | Compatible | |||
| Kromschreder E8.4401 | — | |||
| Control panel NO | — | |||
Boiler safety Bear KLZ |
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| Traction sensor | Yes | |||
| Thermostatic regulator | No | |||
| Flame control | Yes | |||
| Safety valve | No | |||
| Thermal fuse | Yes | |||
| Frost protection | Yes | |||
| Pump jam protection | Yes | |||
Electrical connection |
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| Voltage/Frequency | 220V/50Hz (single-phase) | |||
| Consumption | 0.02 kW | |||
| Protection class | IP 40 | |||
Dimensions and connection pipes for the Medved KLZ boiler
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 flammable material, it is necessary to place a non-flammable substrate that will protrude beyond the dimensions of the boiler by at least 10 cm.
Floor-standing boiler Proterm Medved KLZ - drawing
- A – Cold water inlet pipe 3/4“
- B – DHW circulation pipe 3/4“
- C – DHW outlet pipe 3/4“
- D – Heating system return 1“
- E – Heating system flow 1“
- F – Gas connection 3/4
| Boiler model | A | b | e | ød - chimney | Weight, kg | Height, mm | s - Width, mm | Depth, mm |
| 20KLZ | 327.5 | 191 | 177.5 | 130 | 140 | 1385 | 505 | 730 |
| 30KLZ | 285 | 106 | 220 | 130 | 155 | 1385 | 505 | 730 |
| 40KLZ | 242.5 | 21 | 262.5 | 150 | 180 | 1385 | 505 | 730 |
| 50KLZ | 285 | 21 | 305 | 180 | 205 | 1385 | 590 | 730 |
The boiler comes with adjustable feet to increase stability and the ability to balance the boiler.
Working diagram of the KLZ boiler
Please note that the turbo add-on is not included and must be purchased separately. Also, when purchasing a turbo add-on, you must take it to match your version of the boiler. Turbo add-ons from the KLOM R17 model are not suitable for earlier versions of the boiler.
If you want to know which turbocharger is suitable for your version of the boiler, write the boiler model in the comments and I will help you choose the right one.
On the plus side, it is worth noting that the boiler comes complete with safety fittings - safety valves and check valves.
Design features of the Medved KLZ boiler
The main features are the updated design - an informative LCD display and control buttons. Also, the ability to work via eBUS has been added.
Boiler connection diagram Bear KLZ
Yes, this diagram is for connecting the boiler to room thermostat, sensor outside temperature and turbo extension.
Connection diagram of the KLZ boiler and external sensors When purchasing this boiler, do not skimp and purchase a room regulator and an outside temperature sensor (article 0020040797). In this connection, the boiler goes to new level comfort, and the cost of this equipment is only from 3000 to 8000 thousand, depending on the model of the thermostat.
Double-circuit cast iron gas floor-standing boiler Protherm Bear 50 KLZ with open camera combustion, power 49 kW for heating and hot water preparation in a built-in 90 liter boiler. Designed for installation in residential buildings, country houses and production premises.
Electric ignition. Smooth control of the boiler power for various operating modes. Possibility of installing a fan for forced deletion flue gases
Displaying the temperature and pressure of the coolant from the heating system, which allows you to continuously receive information at any time when the boiler is operating
When connecting room regulators, the boiler control system allows you to maintain a comfortable microclimate in the rooms.
Gas boilers Protherm Bear KLZ are the simplest solution for those who do not want to worry not only about heat, but also about the availability of hot water. Floor-standing double-circuit boilers Proterm Bear with a cast iron heat exchanger has a built-in boiler with a volume of 90 liters or more.
Protherm Bear 50 KLZ is supplied already assembled, which makes transporting and installing the boiler as easy as possible. The ability to replace 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 Protherm Bear 50 KLZ:
Designed for systems with closed coolant circulation
Cast iron two-pass heat exchanger
Open combustion chamber
Possibility of preparing hot water in a built-in 90 liter storage boiler
Efficiency 90-92%
Atmospheric burner made of stainless steel
Smooth control of boiler power
Electric ignition
Boiler control using a built-in microprocessor
Built-in 10 liter expansion tank
Built-in heating circuit pump
Built-in hot water circuit pump
“WINTER-SUMMER” control mode
Indication of coolant pressure in the heating system
Coolant temperature indication
Automatic diagnostics of boiler operation
Independent regulation of the thermal loads of the heating circuit and the hot water circuit
Possibility of working with weather-compensated automation
Protection of cast iron heat exchanger from condensation
Chimney draft control
Overheat protection (pump run-on)
Flame control
Circulation pump anti-blocking system
Frost protection
Limiting frequent boiler starts
Possibility of installing a fan for forced removal of flue gases
Cooling circuit (prevents the temperature of the coolant in the boiler from increasing above 1100C)
Resistant to complex hydraulic conditions
Delivery of the boiler already assembled
Possibility of replacing middle cast iron sections
Easy to install, maintain and maintain
Possibility of working on main and liquefied gas