Daikin R2CND024A4AA [7/28] About the unit
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Daikin R2CND024A4AA [7/28] About the unit

Daikin R2TND012A4AA [7/28] About the unit
3 About the unit
Installation manual
7
R2CND024A4AA + R2TND012~024A4AA
Wall-mounted condensing boiler
3P469346-4E – 2017.07
3.4 Technical specifications
Technical specifications Unit R2TND012A4AA R2TND018A4AA R2TND024A4AA R2CND024A4AA
Heat Input Range(Qn) kW 2.9~11.2 2.9~17.0 2.9~23.5 2.9~23.5
Nominal Heat Output Range (Pn) at 80-60°C kW 2.8~10.9 2.8~16.6 2.8~22.8 2.8~22.8
Nominal Heat Output Range (Pn) at 50-30°C kW 3.1~12.0 3.1~18.0 3.1~24.0 3.1~24.0
Efficiency (30% partial load at 30°C return temperature) % 109.5 109.1 108.7 108.7
Central Heating Circuit
Operating Pressure (min./max.) bar 0.6 / 3.0
Heating Circuit Temperature Interval (min./max.) °C 30 / 80
Domestic Hot Water Circuit
Hot Water Amount DT: 30°C l/min — 12
Hot Water Amount DT: 35°C l/min — 10.3
Water Installation Pressure (min./max.) bar — 0.5 / 10.0
Domestic Hot Water Temperature Interval (min./max.) °C 35 / 60
Domestic Hot Water Circuit Type — storage tank instantaneous
General
Expansion Vessel Initial Pressure bar 1
Expansion Vessel Capacity l 8
Electrical Connection VAC/Hz 230/50
Electrical Power Consumption (max.) W 86
Standby Electrical Power Consumption W 3.5
Electrical Protection Class — IPX5D
Boiler Weight kg 26.5 26.5 27 27
Boiler Dimensions (Height x Width x Depth) mm 590 x 400 x 256
Flue outlet diameter mm 60 / 100
Combustion specifications Unit R2TND012A4AA R2TND018A4AA R2TND024A4AA R2CND024A4AA
Gas Category — II
2N3P
Nominal Gas Inlet Pressure (G20/G25/G31) mbar 20 / 25 / 37
G20 Gas Inlet Pressure (min./max.) mbar 17 / 30
(a)
G25 Gas Inlet Pressure (min./max.) mbar 20 / 30
G31 Gas Inlet Pressure (min./max.) mbar 25 / 45
Natural Gas (G20) Consumption (min./max.) m³/h 0.31 / 1.18 0.31 / 1.80 0.31 / 2.48 0.31 / 2.48
Natural Gas (G25) Consumption (min./max.) m³/h 0.36 / 1.38 0.36 / 2.09 0.36 / 2.89 0.36 / 2.89
LPG (G31) Consumption (min./max.) m³/h 0.12 / 0.46 0.12 / 0.69 0.12 / 0.96 0.12 / 0.96
Combustion products mass flow rate (min./max.) (G20) g/s 1.32 / 5.12 1.32 / 7.78 1.32 / 10.75 1.32 / 10.75
Combustion products mass flow rate (min./max.) (G31) g/s 1.23 / 4.77 1.23 / 7.23 1.23 / 10.00 1.23 / 10.00
Combustion products temperature (min./max.) (G20) °C 56 / 60 56 / 68 56 / 77 56 / 77
Combustion products temperature (min./max.) (G31) °C 56 / 60 56 / 68 55 / 76 55 / 76
Maximum combustion products temp. at nominal heat input °C 80 82 90 90
CO
2
Emission at nominal and minimum heat input (G20) % 9.0±0.8
CO
2
Emission at nominal and minimum heat input (G31) % 11.3±1.0
NOx Class — 6
(a) 20 / 30 for Hungary
Energy-related products (ErP) specifications Symbol Unit R2TND012A4AA R2TND018A4AA R2TND024A4AA R2CND024A4AA
Model — — R2TND012 R2TND018 R2TND024 R2CND024
Condensing boiler — — YES YES YES YES
Low-temperature
(b)
boiler — — NO NO NO NO
B1 boiler — — NO NO NO NO
Cogeneration space heater — — NO NO NO NO
Combination heater — — NO NO NO YES
Central heating efficiency class — — ****/A
Rated heat output P
rated
kW 11 16 23 23
Useful heat output at rated heat output and high-temperature regime
(a)
P
4
kW 10.8 16.4 22.8 22.8
Useful heat output at 30% of rated heat output and low-temperature regime
(b)
P
1
kW 3.9 5.6 7.7 7.7
Seasonal space heating energy efficiency η
s
% 93 93 93 93
Useful efficiency at rated heat output and high-temperature regime
(a)
η
4
% 87.8 87.4 87.3 87.3
Useful efficiency at 30% of rated heat output and low-temperature regime
(b)
η
1
% 98.6 98.2 97.9 97.9
Auxiliary electricity consumption
At full load el
max
kW 0.013 0.020 0.027 0.027
At part load el
min
kW 0.009 0.009 0.010 0.010
In standby mode P
SB
kW 0.004 0.004 0.004 0.004
Other items
Standby heat loss P
stby
kW 0.057 0.057 0.057 0.057
Ignition burner power consumption P
ign
kW — — — —
Annual energy consumption Q
HE
kWh 9281 13790 19648 19648
Sound power level, indoors (at maximum heat input) L
WA
dB 42 46 49 49
Emissions of nitrogen oxides NO
x
mg/kWh 10 18 22 22
Domestic hot water parameters
Declared load profile — — — — — XL

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