Buderus GB402-320-5, Инструкции по установке и обслуживанию для подрядчиков

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2 Information on the device
Logano plus GB402 – 6 720 820 700 (2018/01) 9
2.7.2 Specifications
Boiler size (output - no. of sections)
Unit GB402-320 - 5 GB402-395 - 6 GB402-470 - 7 GB402-545 - 8 GB402-620 - 9
Rated heat input [Qn (Hi)]
1)
kW 61.0 – 304.8 75.2 – 376.2 89.5 – 447.6 103.8 – 519.0 118.0 – 590.0
Rated output [Pn 80/60]
1)
Temperature pairing 80/60 °C
kW 58.9 – 297.2 72,6 – 367,4 85.2 – 435.8 100,7 – 507,0 114,9 – 578,2
Rated output [Pn 50/30]
1)
Temperature pairing 50/30 °C
kW 66,7 – 320,0 80,5 – 395,0 95,6 – 468,2 113,0 – 545,0 127,6 – 621,4
Boiler efficiency, maximum performance
at 80/60 °C % 97.5 97.6 97.3 97.7 98.0
Boiler efficiency, maximum performance
at 50/30 °C % 105.1 105.0 104.6 105.0 105.3
Seasonal efficiency [to DIN], heating curve 75/60 °C % 106.0 106.3 106.6 106.3 106.4
Seasonal efficiency [to DIN], heating curve 40/30 °C % 109.6 109.4 109.7 109.3 110.4
Standby heat loss at excess temperature 30/50 K % 0.20/0.33 0.16/0.27 0.14/0.23 0.12/0.20 0.11/0.17
Heating water circuit
Boiler water content [V]
1)
I 47.3 53.3 59.3 65.3 75.3
Pressure drop on the heating water side at

20 K mbar 99 105 95 108 113
Maximum flow temperature heating/DHW mode °C 30 – 85
Safety limit/high limit safety cut-out [T
max
]
1)
°C 100
Maximum permissible operating pressure [PMS]
1)
bar 6
Maximum differential between flow
and return temperatures Full Load K 30 30 30 30 30
Partial load K 40 40 40 40 40
Maximum permitted flow rate through the
boiler
2)
l/h 34400 42463 50525 58588 66650
Pipework connections
Gas connection inch 2
Heating water connection DN/mm 80
Condensate connection inch ¾ "
Flue gas values
Exhaust connection mm 250
Volume of condensate for natural gas G20, 40/30 °C l/h 30.8 39.2 46.2 55.9 64.7
Exit flue gas mass flow Full Load g/s 142.4 174.5 207.1 240.6 271.9
Partial load g/s 28.7 36.8 40.6 48.0 53.2
Flue gas temperature 50/30 °C Full Load °C 45 44 44 43 44
Partial load °C 30
Flue gas temperature 80/60 °C Full Load °C 65
Partial load °C 57 58 58 58 58
CO
2
value, natural gas Full Load % 9.1
Partial load % 9.3
Standard CO emissions factor mg/kWh 20
Standard NO
x
emissions factor mg/kWh 40
Fan for residual pressure differential
(flue gas and combustion air system) Pa 100
Exhaust system
Temperature classification to be used
for flue system in accordance with EN 1443 min. T120 min. T120 min. T120 min. T120 min. T120
Pressure classification to be used
for flue in accordance with EN 1443 H1,
P1
H1,
P1
H1,
P1
H1,
P1
H1,
P1
Pressure classification to be used
for connection piece in accordance with EN 1443 H1,
P1 with additional mechanical impact stability up to 5000 Pa
Condensate resistance classification to be used for
flue system in accordance with EN 1443 W W W W W
Corrosion resistance classification to be used
for flue system in accordance with EN 1443 Min. 2 Min. 2 Min. 2 Min. 2 Min. 2
Table 4 Specifications