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Viessmann Vitopend 100-W A1HB 24 kW 24 kW (A1HB004)

Photos - Boiler Viessmann Vitopend 100-W A1HB 24 kW 24 kW
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Affordable and efficient wall-mounted single-circuit heating gas boiler with a closed combustion chamber. It is positioned as a product of the middle price category in 2017, capable of developing significant net power (up to 24 kW). Such heating capacity is quite enough for heating residential detached houses and cottages with a total area of up to 192 m2. Thanks to the closed combustion chamber and the forced removal of flue gases by a centrifugal fan, it is possible to save on the construction of a full-sized chimney system. This design does not require fresh air from the room, which makes it possible to install the Viessmann Vitopend 100-W A1HB 24 kW boiler directly in the residential areas of multi-room city apartments. Built-in digital controller with self-diagnosis system provides co...ntinuous modulation of the flame of a gas burner made of high-alloy stainless steel. Copper heat exchanger with optimized design ensures high efficiency and long service life. The compact dimensions of the boiler body allow it to be mounted without problems in confined spaces, including in the kitchen, bathroom or pantry. A full set of security systems, adaptation for east european gas networks and backlighting of an informative digital display are provided. It can be used to prepare hot water in an external indirect heating boiler.
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Viessmann Vitopend 100-W A1HB 24 kW 24 kW
Energy source:gas
Mount:wall, single-circuit
Boiler power:24 kW, area ~ 192 m²
Combustion chamber:closed, flue 60/100 mm
3-way valve for connecting a Vitocell indirect boiler. Built-in diagnostic system controller. Built-in timer for daily and weekly heating settings. Optional possibility of connecting a room thermostat.

Affordable and efficient wall-mounted single-circuit heating gas boiler with a closed combustion chamber. It is positioned as a product of the middle price category in 2017, capable of developing significant net power (up to 24 kW). Such heating capacity is quite enough for heating residential detached houses and cottages with a total area of up to 192 m2. Thanks to the closed combustion chamber and the forced removal of flue gases by a centrifugal fan, it is possible to save on the construction of a full-sized chimney system.

This design does not require fresh air from the room, which makes it possible to install the Viessmann Vitopend 100-W A1HB 24 kW boiler directly in the residential areas of multi-room city apartments. Built-in digital controller with self-diagnosis system provides continuous modulation of the flame of a gas burner made of high-alloy stainless steel. Copper heat exchanger with optimized design ensures high efficiency and long service life. The compact dimensions of the boiler body allow it to be mounted without problems in confined spaces, including in the kitchen, bathroom or pantry. A full set of security systems, adaptation for east european gas networks and backlighting of an informative digital display are provided. It can be used to prepare hot water in an external indirect heating boiler.

FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
All specifications
Specifications Vitopend 100-W A1HB 24 kW
Main
Energy sourcegas
Installationwall
Typesingle-circuit (heating only)
Heating area192 m²
Technical specs
Heat output24 kW
Power supply230 V
Power consumption120 W
Coolant min. T40 °С
Coolant max. T80 °С
Heating circuit max. pressure3 bar
Consumer specs
Circulation pump
Control busOpenTherm
Programmable thermostat
Boiler specs
Efficiency91 %
Combustion chamberclosed (turbocharged)
Flue diameter60/100 mm
Inlet gas pressure20 mbar
Max. gas consumption2.77 m³/h
Expansion vessel capacity6 L
Expansion vessel pressure1 bar
Connections
Gas supply3/4"
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemsgas pressure drop
water overheating
flame loss
draft control
More specs
Dimensions (HxWxD)725x400x340 mm
Weight31 kg
Added to E-Catalogaugust 2017
P/N
A1HB004

FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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High level of DHW comfort

Gas wall-mounted heater Viessmann Vitopend 100-W A1HB 24 kW of a well-known German manufacturer of climate technology is a ready-made solution for economical heating of large rooms. Due to its compact size and closed combustion chamber with forced chimney, it can be installed in the kitchen, corridor, utility room, mini-boiler room. The device is easy to mount and quickly set up, and its maintenance does not require gaps on the sides — access to all the necessary elements is carried out from the front side. The 24 kW model is able to heat rooms up to 192 m2, and when connected to a Vitocell indirect heating boiler, provide hot water supply to several water points. The built-in flow sensor instantly responds to changes in hot water flow, ensuring that it is prepared in sufficient quantities for comfortable use.

Without frost protection

The device is equipped with a modulating atmospheric burner and a fan for removing combustion products, a heat exchanger, a pump, a 6 L membrane expansion tank, a safety valve, a 3-way valve for supplying water to the boiler and hydraulic fittings. The security system turns off the boiler in case of insufficient draft in the exhaust chimney, a decrease in gas pressure, the burner flame goes out and overheating. Unfortunately, this list does not include the usual frost protection, instead of which the manufacturer recommends adding certified antifreeze to the coolant. The device provides an average value of NOx content in the gas "exhaust" corresponding to class 3 according to the pan-European classification.

Diagnostic System Controller

The boiler is equipped with an intuitive control panel with display and setting buttons. The built-in controller with an integrated diagnostic system allows you to independently identify the causes of failures and malfunctions without contacting a service master. The device is characterized by excellent interaction of all systems and components, allowing to fully reveal the potential of a modern heating device. In addition to integrated modules, compatible devices can be connected to the device, which will allow you to adjust the heating temperature depending on the temperature in the room or on the street. The room thermostats Vitotrol 100 or OpenTherm are used for this purpose, as well as the outside temperature sensor, which are optional devices. And the built-in timer makes it possible to set a daily or weekly heating programme.

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