NATUR-2428N

EAN-13: 8435436103117

IPX4D PROTECTION DIRECTIVE 92/42/CEE LCD Integrable

Energetic label: A (Heating and DHW)

Heating/DHW temperature adjustement

Thermal polymer and stainless steel exchanger

Total pre-mixture burner

Modulating gas valve with constant air/gas ratio

Variable speed combustion fan

Modulating high-efficiency pump

9-litre membrane expansion tank

Flame modulation for Heating and Domestic Hot Water

Broad modulation range 1:9

Possibility of expansion for complex zones

Multi-function relay for alarm or simple zones or external pump

Operation at low pressures (0.5 bar), perfect for areas with low grid pressure and buildings with several floors

Electric turn-on, ionisation flame detection

NTC temperature sensor for Domestic Hot Water and heating

LCD interface with diagnostic

Automatic serial bypass

Domestic exchanger with stainless steel plates

Motorised three-way valve

Easy integration and installation

Low NOx Classification 5

Protection: IPX4D

Effective rated heat output 80/60ºC: 22.9 kW

Effective rated heat output for Domestic Hot Water: 27.3 kW

Domestic Hot Water Production Increment of 30ºC: 13.4 l/min.

Useful efficiency at 30% charge: 106.5 %

Weight: 28.5 kg

DHW flow limiter calibrated at 13l/min

Temperature regulation of heating water at 20-78ºC (standard range) and temperatura regulation of DHW at 35-57ºC

Ultra-compact dimensions ( height x width x depth): 700 x 400 x 250 mm

NATUR-2428N
GENERAL FEATURES
Gas category II2H39
Energetic classification according to 92/42/EEC ****
Classification NOx (EN 483) 5
RATED EFFICIENCY
Rated efficiency [kW] 23,7
For Heating (80-60ºC) max/min [kW] 22,9/2,7
For Heating (50-30ºC) max/min [kW] 22,9/2,7
For Domestic Hot Water (DT 30ºC) max/min [kW] 24,9/3,22
For Domestic Hot Water max/min [kW] 27,4/3
USEFUL EFFICIENCY
At rated efficiency (80-60ºC) [%] 96,7
At minimum efficiency (80-60ºC) [%] 91,4
At rated efficiency (50-30ºC) [%] 105,1
At minimum efficiency (50-30ºC) [%] 104,9
At partial 30% load [%] 106,5
HEATING CONSUMPTION
At rated efficiency (80-60ºC) Natural Gas [m3/h] 2,51
At Minimum Efficiency (80-60ºC) Natural Gas [m3/h] 0,29
At Rated Efficiency (80-60ºC) Propane [kg/h] 1,84
At Minimum Efficiency (80-60ºC) Propane [kg/h] 0,21
HEATING
Maximum work pressure for heating [bar] 3
Maximum work temperature for heating [C] 83
Heating temperature regulation [C] 20-78
Expansion tank capacity [L] 9
DOMESTIC HOT WATER
Minimum DHW circuit pressure [bar] 0,5
DHW flow at DT 30ºC [l/min] 13,4
DHW flow at DT 25ºC [l/min] 16,1
Maximum DHW circuit pressure [bar] 6
Maximum work temperature for DHW [C] 62
DHW Temperature Regulation [C] 35-57
DISPERSAL
Max. length of exhaust output 60/100 (C13-C33) [m] 10
Max. length of exhaust output 80 + 80 (C43-C53-C83) [m] 84
Max. length of exhaust output 60 (C43-C53-C83) [m] 23
OTHER
Voltage/Frequency of supply [V/Hz] 230/50
Intensity [A] 3,15
Degree of electrical protection IPX4D
Dimensions [mm] 400X700X250
Net/Gross weight [kg] 28,5/29
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