Daikin D2CND028A1AB, Installation Manual

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3 About the unit
Installation manual
8
D035A1/4AB + D035A4AB
Wall-mounted condensing boiler
3P469346-5N – 2019.11
3.4 Technical specifications
Technical specifications Unit D2CND028A*AB D2CND035A*AB D2TND028A4AB D2TND035A4AB
Heat Input Range(Qn) kW 4.8~27.0 4.8~34.0 4.8~27.0 4.8~34.0
Nominal Heat Output Range (Pn) at 80-60°C kW 4.6~26.3 4.6~33.2 4.6~26.3 4.6~33.2
Nominal Heat Output Range (Pn) at 50-30°C kW 5.2~28.2 5.2~35.0 5.2~28.2 5.2~35.0
Efficiency (30% partial load at 30°C return temperature) % 108.9 108.7 108.9 108.7
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 14 16 —
Hot Water Amount DT: 35°C l/min 12 14 —
Comfort Class (EN13203) — *** —
Water Installation Pressure (min./max.) MPa 0.05 / 1 —
Domestic Hot Water Temperature Interval (min./max.) °C 35 / 60
Domestic Hot Water Circuit Type — instantaneous storage tank
General
Expansion Vessel Initial Pressure bar 1
Expansion Vessel Capacity l 10
Electrical Connection V AC/Hz 230/50
Electrical Power Consumption (max.) W 92 112 92 112
Standby Electrical Power Consumption W 2.7
IP Rating — IPX5D
Boiler Weight kg 37 35.5
Boiler Dimensions (Height × Width × Depth) mm 695 × 440 × 295
Flue outlet diameter mm 60 / 100
Combustion specifications Unit D2CND028A*AB D2CND035A*AB D2TND028A4AB D2TND035A4AB
Gas Category — II
2N3P
Nominal Gas Inlet Pressure (G20/G25/G31) mbar 20 / 37
G20 Gas Inlet Pressure (min./max.) mbar 17 / 25
(a)
G25 Gas Inlet Pressure (min./max.) mbar 20 / 31
G31 Gas Inlet Pressure (min./max.) mbar 25 / 45
Natural Gas (G20) Consumption (min./max.) m³/h 0.51 / 2.89 0.51 / 3.63 0.51 / 2.89 0.51 / 3.63
Natural Gas (G25) Consumption (min./max.) m³/h 0.59 / 3.32 0.59 / 4.19 0.59 / 3.32 0.59 / 4.19
LPG (G31) Consumption (min./max.) m³/h 0.2 / 1.09 0.2 / 1.38 0.2 / 1.09 0.2 / 1.38
Combustion products mass flow rate (min./max.) (G20) g/s 2.2 / 12.35 2.2 / 15.47 2.2 / 12.35 2.2 / 15.47
Combustion products mass flow rate (min./max.) (G31) g/s 2.2 / 12.02 2.2 / 15.22 2.2 / 12.02 2.2 / 15.22
Combustion products temperature (min./max.) (G20) °C 57.5 / 76.4 57.5 / 81.7 57.5 / 76.4 57.5 / 81.7
Combustion products temperature (min./max.) (G31) °C 57.5 / 74.5 57.2 / 80.2 57.5 / 74.5 57.2 / 80.2
CO
2
Emission at nominal and minimum heat input (G20) % 8.8±0.8
CO
2
Emission at nominal and minimum heat input (G31) % 11.3 / 10.2±1.0
NOx Class — 6
(a) 20 / 30 for Hungary
Energy-related products (ErP) specifications Symbol Unit D2CND028A*AB D2CND035A*AB D2TND028A4AB D2TND035A4AB
Model — — D2CND028 D2CND035 D2TND028 D2TND035
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 — — YES YES NO NO
Central heating efficiency class — — ****/A
Rated heat output P
rated
kW 26 33 26 33
Useful heat output at rated heat output and high-temperature regime
(a)
P
4
kW 26.3 33.2 26.3 33.2
Useful heat output at 30% of rated heat output and low-temperature regime (b) P
1
kW 8.8 11.1 8.8 11.1
Seasonal space heating energy efficiency η
s
% 93
Useful efficiency at rated heat output and high-temperature regime (a) η
4
% 87.8 87.9 87.8 87.9
Useful efficiency at 30% of rated heat output and low-temperature regime (b) η
1
% 98.1 97.9 98.1 97.9
Auxiliary electricity consumption
At full load el
max
kW 0.0356 0.0547 0.0356 0.0547
At part load el
min
kW 0.0098 0.0111 0.0098 0.0111
In standby mode P
SB
kW 0.003
Other items
Standby heat loss P
stby
kW 0.0651
Ignition burner power consumption P
ign
kW —
Annual energy consumption Q
HE
GJ 48 58 48 58
Sound power level, indoors (at maximum heat input) L
WA
dB 49 52 49 52
Emissions of nitrogen oxides NO
x
mg/kWh 36 35 36 35
Domestic hot water parameters
Declared load profile — — XL —
Daily electricity consumption Q
elec
kWh 0.153 0.204 —