Condensing boiler AGC 15 / Diematic iSystem floor-standing 100016313

Condensation efficiency and operational savings

The Modulens G AGC 15 boiler utilizes condensation technology that allows for the recovery of heat contained in flue gases - the annual operational efficiency reaches 109%, which translates to real gas savings compared to conventional boilers. The modulating stainless steel burner operates in the 22-100% power range, smoothly adapting to current heat demand and eliminating losses resulting from frequent cycling.

The advanced combustion system with complete pre-mixing of the gas-air mixture limits pollutant emissions - the boiler meets NOx class 5. Combined with energy class A, the device meets the requirements set for modern heating installations.

Heat exchanger, burner, and operational safety

The heart of the boiler is a monoblock heat exchanger cast from an aluminum-silicon alloy, resistant to limescale buildup - a problem leading to efficiency drops in traditional heat exchangers. The manufacturer provides a 7-year warranty on the heat exchanger.

The stainless steel gas burner is equipped with a non-return flap valve, enabling operation with pressurized flue gas discharge systems. Electronic ignition and ionisation flame control ensure safe operation.

DIEMATIC iSystem regulation and hydraulic equipment

The DIEMATIC iSystem control console is a programmable electronic weather compensation system that analyzes outdoor temperature and optimizes boiler operation. The system supports multi-energy system control, including integration with solar installations (solar parameter regulation). For the AGC 15 model, a package with the DD Home Control remote monitoring module is available.

The boiler is supplied as a single-function unit (heating) with standard equipment:

• modulating heating pump with energy efficiency index EEI < 0.23 (class A),
• heating safety valve 3 bar,
• expansion tank 18 l,
• heating/DHW diverter valve,
• automatic air vent,
• internal lighting operating in the absence of electrical power.

The modular external casing features a design identical to DHW heater casings, allowing the boiler to be paired with an additional domestic hot water storage tank to create a cohesive installation column.

Gas and flue gas connections

The boiler is factory-prepared to work with H natural gas, with the possibility of adapting to Lw/Ls natural gas or propane. Regarding flue gas discharge, the device allows for several configurations:

Electrical supply: 230 V / 50 Hz, protection rating IP21. Maximum operating temperature is 90°C, operating pressure 3 bar, and the safety thermostat is set to 110°C.