The most affordable energy resource with the lowest level of harmful emissions in modern world is gas. The use of AGV for space heating is the most effective option in terms of efficiency and harmlessness. Independence from power supply and low cost maintenance allows water heaters to take their rightful place among similar devices.
AGV water heating boilers using gas as an energy carrier began to be produced by ZhMZ (Zhukovsky Machine-Building Plant) in 1967. New generation of gas heating devices capable of heating housing up to 140–200 m², the equipment can also be used to provide hot water. TO the catches are equipped reliable system automatic gas supply control.
ZhMZ products now represent about 30 types of boilers. Among them are modifications with a power from 11 kW to 68 kW - AOGV, KOV, AKGV. Certified devices that have permission to manufacture and use are capable of heating up to 610 m² of area.
Operating principle of AGV
The basis of the design of AGV devices is a cylindrical tank connected by a pipeline system to the entire heating network of the house. Inside the cylinder there is a heat exchanger - a flame tube, heated by gas combustion. In the AGV-80 and AGV-120 devices, a turbulator was placed inside, which slightly increased the efficiency of the installation.
The heating system is a network of rising pipes, radiators, expansion tank and return pipe.
This system provides full cycle of operation of the device which includes:
- heating the coolant - water;
- lifting the heated coolant through the ascending pipeline to heating devices - radiators;
- heat transfer;
- return of water to the device for subsequent heating.
Thermosiphon heating system (or system with natural circulation) does not require additional installation pumps, and compensation for water losses occurs from the expansion tank. Waste gas combustion products enter the chimney and are released into the atmosphere.
IMPORTANT! The AGV system allows you to install a pump to ensure forced circulation of water. Such a boiler will no longer be considered energy independent, since the pump requires electricity to operate.
The AGV-80 and AGV-120 devices were equipped automatic device, which prevented the flow of energy when a certain temperature was reached, when the burner wick spontaneously extinguished, the draft in the chimney decreased, or when the gas pressure in the line decreased.
When the coolant temperature decreases, the automatic sensor is triggered, turning on the gas supply to the burner.
The new generation AGV devices differ more efficient design, but all heat and water heating systems operate in normal mode gas boiler. The design differences lie in the division of the flame tube into separate sections. There is also a coil mounted in the water jacket for preparing hot water.
Technical parameters of the first and one of the latest modifications of AGV boilers are presented below:
| Thermal power | Heated area | Tank capacity | Efficiency | Maximum water heating temperature | ||
| AGV-80 | 7 kW | up to 60 m² | 80 l | 75% | 90˚ | 85 kg |
| AOGV-23.2 | 23.2 kW | up to 200 m² | 35 l | 89% | 95˚ | 55 kg |
Advantages and disadvantages
A serious significant advantage What distinguishes AGV gas boilers from similar equipment is their independence from the electricity supply, in other words, there is no need for. Others "pros" the use of the devices is recognized:
- affordable price;
- high efficiency indicators: the resulting effect from use significantly exceeds the costs of ensuring the functioning of the boiler;
- reliability and safety of boiler operation;
- ease of maintenance.
Available advantages cannot smooth out the characteristic “cons” that negatively affect the performance of the equipment:
- This is a low ratio useful action;
- Equipment with unreliable automation;
- Significant dimensions of the devices themselves and large diameter pipes;
- The need for strict adherence to pipe slopes during their installation.
Knowing the strong and weak sides equipment, you can make a reasonable choice.
Choosing an AGV (gas boiler) for a private home
Features of the house (area, building materials used) and climatic characteristics of the area - one of the main criteria for a successful choice heating and hot water supply device. The second important feature is the power of the boiler.
Important! Multiplying the power value by 10 m² of area will tell you how much area the boiler can heat. For regions with harsh climates, it is necessary to provide a power reserve of 25%.
The criterion that determines the choice is the price of the equipment, as well as the cost of materials necessary for operation. Compared to imported analogues, domestic devices are ≈ 35% cheaper, and the cost of maintenance is also three times lower.
Gas boiler AOGV-11.6 and AOGV - 23
The AOGV-11.6 device is a floor-mounted modification of equipment from the assortment range of single-circuit boilers of the Zhukovsky Machine Plant (ZhMZ). Designed exclusively for heating needs. Its marking stands for “gas water heating device”. The next number in the brand designation indicates its power - 11.6 kW.
Models AOGV-11.6–3 (“Economy” and “Universal”) belong to double-circuit boilers and can provide the consumer, in addition to heating, with hot water. These boilers differ from single-circuit devices by the presence of a steel coil in the design. 
They differ in their features automatic systems(the first of those named is equipped with domestic automatic equipment, "Universal" works with the Italian system).
Modern gas boilers AOGV - 23 are distinguished not only by their improved appearance, but also by the modernization of some structural elements:
- durable Italian thermometers were installed instead of unreliable ones glassware domestic production;
- automation system American company Honeywell allows you to control the smoke removal system, maintain heating, turn off the gas in case of breakdowns in the system, and in the absence of a burner flame, blocks the operation of water heating equipment;
- Equipping with an injection burner allows for the most complete combustion of gas without residue.
Usage new technology coating on metal surface The boiler body ensured an attractive appearance of the equipment. This is done by AGV (gas boilers) good choice for a private home or cottage.
Important! The boiler room can be located anywhere, but not in a residential area. It is extremely necessary to provide for the possibility of air inflow and exhaust in the furnace.
Installation of equipment in accordance with certain technical standards and safety requirements can be carried out by a specialized organization. The exact implementation of all rules, instructions and recommendations for installing the boiler is checked by a representative of the gas inspection.
Important! The inspector will give permission to connect the equipment to the main line if all requirements are fully met project documentation, security.
Gas boiler AOGV-23 ZhMZ
Heating gas boilers AOGV-23.2 Universal produced by ZhMZ are a floor-standing gas single and double-circuit non-volatile unit equipped with an imported automation unit.
This design allows us to minimize the cost of heating equipment. The device runs on natural or liquefied gas (after replacing the injectors).
Fig.1. Appearance Zhukovsky boiler AOGV-23
The presence of a second circuit allows the use of boiler units of the Universal series for simultaneous supply of heat and domestic hot water supply.
Small dimensions, light weight and convenient shape make these boilers an ideal choice for system installation autonomous heating in small spaces.
Advantages of gas Zhukov heating boilers
Heat exchanger
High efficiency of boilers (up to 89%), ensured by the tubular design of the heat exchanger with built-in turbulators;
High reliability of the heat exchanger tank due to the use of an automatic welding process and seamless seamless pipes;
Stable supply of hot water for domestic needs in a copper flow-through secondary circuit;
Possibility of using devices in heating systems with natural and forced circulation of coolant.
Automation
Safety, reliability, simplicity and ease of operation of boilers is ensured by the use of modern imported automation units;
Saving gas consumption due to the automatic burner power modulation mode in units with imported automatic equipment;
Ease of management due to optimal location automation blocks.
Burner
Environmental cleanliness due to the low content of nitrogen and carbon oxides in the exhaust gases;
Stable operation of the device at low gas pressure in the network (up to 550 Pa);
Ease of use due to the easy process of replacing and cleaning the burner.
Design of gas boiler ZhMZ AOGV-23
Protective external coating of the boiler with white powder enamel;
Cylindrical and rectangular shape, automation is located at the top or bottom;
The boilers are equipped with a dial thermometer and piezo ignition;
Technical characteristics of the gas Zhukovsky boiler AOGV-23
Apparatus efficiency coefficient (during continuous operation), %, not less: 88
Type of gas - natural / liquefied
Nominal thermal power, W (Kcal/h) - 23260 (20000)
Gas consumption:
Natural, no more - 2.55
- liquefied, no more - 0.87
Vacuum in the chimney, Pa (mm water column) minimum / maximum - 2.94 (0.3) / 29.4 (3.0)
Ignition time, sec., no more than - 60
Carbon monoxide index, vol. %, no more than - 0.05
Range of maintaining water temperature in the heat exchanger, C - 50-90
Burner type - Injection
Tank capacity, l - 59
Outside diameter connecting pipe of the gas exhaust device, mm - 135±2
Water consumption in hot water supply mode when heating at t=35 0С l/min., not less than - 7.1
Water pressure in front of the device in the DHW system, kPa (kg/cm2)
Maximum - 588 (0.6)
- minimum - 14.7 (0.15)
Water pressure in the heating system, kPa, no more than - 100
Distance:
From the floor to the axis of the gas pipeline inlet pipe, mm - 716±5
- from the floor to the end of the heat exchanger outlet pipe, mm - 1050±5
- from the floor to the axis of the heat exchanger inlet pipe, mm - 292±5
- from the floor to the axis of the coil inlet pipe, mm - 587±5
- from the floor to the axis of the coil outlet pipe, mm - 927±5
dimensions, mm: height x width x depth - 1050±5 x 420±5 x 480±5
Weight of the device (without packaging), kg, no more than - 60
Maintenance of gas boiler ZhMZ AOGV-23 Universal
Periodically, but at least once every six months (before starting heating season), check the accuracy of the thermostat settings.
Rice. 2. Automation of the gas boiler ZhMZ Universal
1. Gas magnetic valve; 2. Start button; 3. Arrow; 4. Adjustment knob; 5. Thermostat; 6. Bellows - thermal cylinder; 7. Filter, 4. Adjustment knob;
If the thermometer readings differ from the temperature, installed handle adjustment 4 (Fig. 2) by more than ± 5 °C, it is necessary to adjust:
Set adjustment knob 4 (Fig. 2) to number 4;
Warm up the coolant in the unit to 50 °C;
Slowly rotate adjustment knob 4 (Fig. 2) in the direction of decreasing temperature until the gas supply to the main burner stops;
Unscrew the screw securing the adjustment knob and remove it;
Carefully install the adjustment knob, aligning number 1 on the adjustment knob with arrow 3 (Fig. 2) and tighten the screw securing the adjustment knob;
Make sure that the settings are correct at the moment the main burner is turned off when a correspondence is achieved between the temperature set using the adjustment knob and the actual temperature of the coolant of the device.
Malfunctions of the Zhukovsky boiler AOGV-23 and their elimination
1. Pressing the start button fails to ignite the igniter; the flame on the igniter goes out and comes off
The gas tap in front of the device is closed - Open the gas tap.
The hole in the igniter nozzle is clogged - Clean the hole with Ø 0.3 mm wire.
Gas pressure below 635 Pa (65 mm water column) - Notify the gas department.
The presence of strong drafts in the room, leading to the flame breaking off on the igniter - Eliminate or reduce drafts.
2. There is no spark between the spark plug electrode and the igniter
Large gap between electrode and igniter - Adjust the gap.
Piezo ignition does not work - Replace piezo ignition.
3. When the start button is released (after holding it for at least a minute with the igniter burning), the igniter flame goes out
Oxidation of the solder on the contacts at the junction of the electromagnet with the contact wire, weak pressing of the pins in the sockets - Unscrew the fitting of the contact wire from the gas magnetic valve body, clean the contact with a file until shiny (remove the oxide film). Screw the fitting back into the housing. Remove the sockets from the pins and lightly crimp the sockets with pliers. Install the sockets onto the pins. To avoid breaking the soldering of the electromagnet contacts and the contact wire, do not overtighten the wire fitting when screwing it into the gas magnetic valve body.
The traction sensor microswitch does not work - Replace the microswitch.
The thermocouple does not produce EMF, the end of the thermocouple has burned out (the value of the thermocouple EMF must be at least 20 mV) - Replace the thermocouple.
The igniter flame does not touch the thermocouple - Install (bend) the thermocouple so that the flame washes the end of the thermocouple (see Fig. 3).
The safety thermostat is faulty - Replace the safety thermostat.
4. The flame of the burner and igniter goes out. Automatic shutdown of the gas supply when the gas boiler AOGV-23 ZhMZ is operating. The traction sensor is triggered
Complete or partial blockage of the chimney - Clean the chimney.
The presence of strong drafts in the room, leading to the flame failure on the igniter - Eliminate or reduce drafts.
The pressure has dropped below 635 Pa (65 mm water column) - Notify the gas department.
To measure the gas pressure in the network, disconnect the igniter tube from the fitting of the valve body. Connect to the fitting measuring device.
Turn the adjustment knob, setting it to 50 - 60 °C. Press the start button all the way, then release it 2 - 3 mm and after 8 - 12 seconds. take readings from the device.
5. The response time of the automation of the gas Zhukovsky boiler AOGV-23 for draft is less than 10 seconds. in the absence of draft in the chimney. The automatic response time for traction is more than 60 seconds. in the absence of draft in the chimney.
The draft sensor is not adjusted - Adjust the sensor by: unlocking it, unscrewing (or tightening) the adjusting screw by 1-2 mm and locking it again. Check the response time. Repeat the operation if necessary.
The response time depends on the size of the gap between the adjusting screw and the microswitch button. As the gap increases, the response time increases and vice versa.
6. The main burner does not turn off
The bellows-thermal cylinder is depressurized - Replace the bellows-thermal cylinder
Thermostat is out of adjustment - Adjust the thermostat in the response ranges within 50-90 °C.
7. After turning off the burner does not turn on long time. The water in the tank is hot, the batteries are cold
No circulation in the heating system - Eliminate backslopes in the heating system. Eliminate air pockets in the heating system.
8. Presence of flame at the fire holes of the main burner when the thermostat is turned off
Leakage of the thermostat valve due to dirt - Remove the front thermostat cover. Clean the valve plug and apply sealing lubricant.
9. The draft breaker door does not rotate or rotates slowly
Presence of dirt on the door axle - Remove dirt from the door axle and the socket for installing the axle in the traction breaker body.
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OPERATION AND REPAIR OF BOILERS- Improved design.
- Non-volatile boiler.
- Italian automation EuroSit.
- It is allowed to use softened water or household antifreeze such as Dixis, Warm House, as the coolant for the heating system.
- It runs on natural (main) gas; after replacing the injectors, it can run on propane.
- Low content of nitrogen and carbon oxides in the exhaust gases, environmentally friendly.
- Ease of use due to easy process replacing and cleaning the burner.
Specifications
Brand Zhukovsky Country of assembly Russia Boiler type gas Number of circuits single-circuit The combustion chamber open Type of fuel Natural gas, Liquefied gas Installation floor Heated area 200 sq. m. Power 23.26 kW Efficiency % 88 Control mechanical Country of origin Russia Condensation No 19.5 kW Non-volatile Yes Primary heat exchanger material steel Consumption liquefied gas, kg/hour 1.74 Natural gas consumption cubic meters m/hour 2.55 Nominal natural gas pressure, mbar 12.7 Nominal pressure of liquefied gas, mbar 29.4 Coolant temperature, °C 50 - 90 Max. water pressure in the heating circuit, bar 1 Color Guarantee period 2 years Model Zhukovsky Universal AOGV Connection and dimensions
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Model ZhMZ AOGV-23.2-3 Universal, (N) is a single-circuit heating boiler made of modern durable materials and equipped with the latest high-tech interior fittings. The boiler is designed to operate in living conditions, it has simple operation and does not require serious maintenance. Can work in heating systems of various types.
Features and Benefits: