Buderus Logamax plus - Technical Specifications; Boiler Specifications at Different Altitudes

Technical specifications 14
Logamax plus GB162-80 kW/100 kW - Subject to modifications resulting from technical improvements! 81
14 Technical specifications
14.1 Technical specifications of GB162-boilers at sea level (0-4,000 ft)
General specifications unit GB162-80 (NG) GB162-80 (LP) GB162-100 (NG) GB162-100 (LP)
Gas category Natural gas Propane Natural gas Propane
Rated thermal load btu/h 72,000 - 290,000 62,000 - 270,000 72,000 - 333,000 62,000 - 315,000
Rated heating capacity,
heating curve 176/140 °F (80/60 °C)
btu/h
64,100 - 255,200 55,200 - 237,600 64,100 - 293,000 55,200 - 277,200
Rated heating capacity,
heating curve 122/86 °F (50/30 °C)
btu/h
71,300 - 281,300 61,400 - 261,900 71,300 - 326,300 61,400 - 308,700
Boiler efficiency at max. capacity,
heating curve 176/140 °F (80/60 °C)
%
88 88
Boiler efficiency at max. capacity,
heating curve 122/86 °F (50/30 °C)
%
97 98
CSA Output btu/h 261,000 243,000 295,000 279,000
De-ration altitudes 2,000 - 4,000 ft % / 1,000 ft 2.32.22.12.0
AFUE at 80/180°F (27/82 °C) 93.8 93.9 n/a n/a
BTS 2000 at 80/180°F (27/82 °C) part. load n/a n/a 96.1 96.1
BTS 2000 at 80/180°F (27/82 °C) full load n/a n/a 90.8 90.8
Heating
Maximum flow temperature °F (°C) 190 (88)
Maximum working pressure (boiler) psi (bar) 50 (3.6)
Minimum water circulation volume Gal/h (l/h) 0
Flow temperature °F (°C) 86-190 (30-88), can be set on the BC10 basic controller
Resistance at ΔT = 20 K psi (mbar) 3.26 (225) 4.57 (315)
Heating circuit volume of heat exchanger Gal (L) 1.3 (5.0)
Pipe connections boiler, without pump group.
Gas connection in Rp1“
Heating water connection in G1½’’ union nut with female thread enclosed
Condensate connection in (mm) Ø 1¼” (32 mm)
Flue gas values
Condensate quantity at 104/86 °F
(40/30 °C)
Gal/h (L/h) 2.4 (9.0) 2.85 (10.8)
pH value of condensate pH approx. 4.1
Flue gas mass flow rate, full load g/s 35.3 44.9
Flue gas temperature 176/140 °F
(80/60 °C), full load
°F (°C) 153 (67) 149 (65) 169 (76) 165 (63)
Flue gas temperature 176/140 °F
(80/60 °C), partial load
°F (°C) 142 (61) 136 (58) 142 (61) 136 (58)
Flue gas temperature 122/86 °F
(50/30 °C), full load
°F (°C) 118 (48) 114 (46) 124 (51) 120 (49)
Flue gas temperature 122/86 °F (
50/30 °C), partial load
°F (°C) 93 (34) 88 (31) 93 (34) 88 (31)
CO
2
content at full load % 9.39.69.49.7
Free fan feed pressure Inch w.c.
(Pa) 0.602 (150) 0.883 (220)
Flue gas connection
Ø flue gas system, room-air dependent in (mm) Ø 4” (100 mm)
Ø flue gas system, room-air independent in (mm) Ø 4” (100 mm) / 4” (100 mm) parallel
Table 20 Technical specifications of GB162-boilers at sea level