Specifications - Buderus LOGANO PLUS GB312 Installation Instructions Manual

Boiler size (output - no. of heat exchanger sections)
Width B
Dimension XAA
Dimension X (= X = X )
RK AL GAS
Dimension F
Dimension A
AA = Flue pipe diameter
Flue adaptor for desired manufacturer's flue system
Dimension Y
AA
Dimension Z
AA
AL = Diameter of combustion air pipe (balanced flue only)
Connections VK and RK
Connection ST (B-kit)
Diameter GAS
Table 2 Dimensions and connection sizes

2.10.2 Specifications

Observe all standards and guidelines applicable to the
installation and operation of the heating system in your
country. The information on the boiler rating plate is
definitive and it is imperative that it is observed.
Boiler size (output - no. of heat exchanger sections)
Natural gas (gas type A)
I-B-R Input
I-B-R gross output 180/80 ° F
I-B-R net rating 180/80 ° F
Rated heat output 122/86 ° F
(50/30 ° C)
Flue gas mass flow rate 180/80 ° F
Flue gas mass flow rate 122/86 ° F
Flue gas temperature 180/80 ° F
Flue gas temperature 122/86 ° F
CO content, natural gas
2
(GAS A)
Available draft
(flue draft + air supply pressure)
Air supply volumetric flow rate
Fan
Honeywell gas valve
Gas injector diameter
Natural gas (GAS A) calorific value 1075 BTU/ft
Heating water circuit
Boiler water capacity
Primary pressure drop
Maximum flow temperature, heating/hot water mode
High temperature cut-out safety limit
(manual reset high limit setting)
Table 3 Specifications
Logano plus GB312 – 6 720 647 367 (2012/11)
Unit 90 - 4
Inches
Inches
Inches
Inches
Inches
Inches
6.3" x 5"
Inches
Inches
Inches
Unit 90 - 4
max. load Btu/hr 328,300
min. load Btu/hr 132,200
max. load Btu/hr 305,000
max. load Btu/hr 265,000
max. load Btu/hr 307,100
min. load Btu/hr 128,100
max. load lb/min 4.85
max. load lb/min 5.05
max. load ° F 83
max. load ° F 120
max. load
%
min. load
in. W.C.
cfm 95
3
US
4.2
gallons
PSI
° F
° F
Product description
120 - 4 160 - 5 200 - 6
39.1 47.3
13.1 15.1 17.2
10.6 14.7 10.6
31.5 39.7
51.5
6.3
6.3" x 6"
18.5
5.7
3.94
NPT 2½ "
¾" NPT
1" NPT
120 - 4 160 - 5 200 - 6
440,500 588,300 732,600
132,200 176,500 219,800
409,000 544,000 676,000
356,000 473,000 588,000
409,500 545,900 682,400
127,400 171,200 212,300
6.53 9.14 11.40
7.12 9.29 11.61
90 127 138
133 129 131
9.1
0.4 (100 Pa)
95 130 160
G1G 170
V4730C1071 V4730C1097
17.0
4.2 5.3 6.3
 Fig. 4 (graph)
180/180
200
2
240 - 7 280 - 8
55.5
19.2 21.3
14.7 10.6
47.9
51.2
7.9
7.9" x 8"
19.5
12.2
1" NPT
1 ¼ " NPT
240 - 7 280 - 8
1,028,80
880,700
0
264,200 308,600
810,000 944,000
704,000 821,000
819,000 955,400
255,200 298,100
13.88 16.15
14.02 16.65
140 134
131 135
190 220
V4730C1
063
7.1 7.9
11