Gas Boiler Motan Mkdens 20-P C38GC20-P

Description

Gas condensing Boiler Motan Mkdens 20-P C38GC20-P for Heating and DHW

The Motan MKDENS 20-P gas boiler is an integrated and compact heat exchanger, based on a single stainless steel coil, with an oval section.

Efficiency up to 106% and modulation ratio 1:10;
Friendly environment - during operation it emits significantly reduced amounts of NOx, CO and CO2 - Class NOx 5;
Increased comfort on the Domestic Hot Water circuit due to the OVERDIMENSIONED secondary exchanger;
STAINLESS STEEL main heat exchanger
Grundfos circulation pump
SIT gas valve
Control panel with LCD display that provides an advanced graphic interface and switch keys. The control panel with LCD display - incorporates an illuminated screen to display the temperature and pressure in the installation, respectively the interface for error codes (self-diagnosis).
The possibility of connecting a chrono-thermostat and/or external temperature probe.
Anti-limestone protection - the hydroblock is made of polyamide reinforced with glass fiber, so the Mkdens boiler is protected against the effects of hard water (containing lime) or water treated with chlorine.
Energy efficiency (dir. 92/42/EEC) ****. NOx class (G20, G25, G25.1, G31) =5. Energy efficiency class in operation on heating: A. Energy efficiency class in operation on domestic hot water: A

Min/max nominal caloric flow - heating G20 =3-22.5 kW. Maximum rated power (80/60°C) = 2.8-21 kW. Maximum nominal power (50/30°C) = 22.5 kW. Useful yield at nominal caloric flow at 80/60°C G20 =97%. Useful yield at nominal caloric flow at 50/30°C G20 =105%. Maximum nominal fuel consumption G20 =2.38 mc/h. Seasonal energy yield related to heating ηs =91%.

GN gas supply pressure at the connection (after the reducer): 20 mbar (max. 25 mbar, min. 17 mbar). Maximum admissible GN pressure 35 mbar.

Pressure on the heating circuit minimum 0.8 bar..maximum 3 bar. Temperature adjustment range 30÷80°C. Floor temperature adjustment range 15÷45°C. DHW circuit DHW temperature adjustment range 30÷55°C.

Comfort ACM EN 13203: ***. Domestic hot water flow at ∆t = 30°C 12 l/min. Thermal power for hot water production = 25 kW.

Power supply: ~230 V AC/50 Hz. Nominal power = 90 W

Dimensions: Height 750 mm x Width 400 mm x Depth 340 mm. Height with the elbow mounted = 890 mm. Weight ~33 kg.

Primary heat exchanger capacity ~1.4 liters. Connections Heating input, output: 3/4''. Cold water inlet, domestic hot water outlet: 1/2''. Gas supply: 3/4''.

Expansion vessel with membrane 7 liters.

Exhaust type B23; B33; C13; C13x; C23; C23x; C33; C33x; C43; C43x; C53; C53x; C63; C63x; C73; C73x; C83; C83x; C93; C93x Coaxial kit length D60/D100 min. 1m - max. 20 m. Dual kit length D80/D80 min. 1 m - max. 20 m.

Flue gas temperature (at return temp. 30°C) ~59°C Protection class IP40 class The maximum recommended volume of water in the installation (informative value) 200 liters.