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ALUTHERM
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Boilers 30
ALUTERM B 350 - 600
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Installation, User and Service Manual
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instructions for user
Heating
Alutherm B 350 - 600
6.5.3 C63
C63 appliances may only be equipped with Gastec QA materials and terminals or according NEN 14989-2
Note: When using a C63 type flue configuration it is essential to ensure that C63 is allowed in the country were the boiler is installed.
It is recommended to use a full aluminium flue system. A PP (Temperature class T120) or stainless steel flue system can also be used (See TPW table
below). In this case the condensate must be drained before it flows back into the aluminium parts of the boiler. Otherwise aggressive condensate
from the non-aluminium flue system can corrode the aluminium parts of the boiler. A condensate trap/collector must be mounted just before
entering the silencer(s) of the boiler (also see 6.5.5.1 general).
T-P-W Class table
Temperature range
T120
Pressure range
P1
Condensate resistance (W=wet / D=Dry)
W
The minimal combustion products temperature, mass flow rate and CO2 are given in the table below.
Type
Vol. Flue
Vol. Air
Vol. Flue m3/h
Vol. Air m3/h
CO2 %
T Fluegas ºC
rho kg/m3
B 350
350
68
88
76
9,1
30
1,12
B 425
425
85
110
95
9,1
30
1,12
B 510
510
102
132
115
9,1
30
1,12
B 600
600
119
154
134
9,1
30
1,12
The maximum allowed recirculation rate under wind conditions is 10 %
Maximum allowable combustion air temperature 45 °C
The tables below give an indication of maximum lengths (in mtrs) for parallel air supply and flue outlet pipes. The equivalent of pipe length in mtrs
of bends 90 ° and 45 ° is given.
Maximum lengths (in mtrs) for parallel air supply
Type
max. allowed
pressure drop (*)
Parallel Air/Fluegas
Ø150/ø200
Parallel Air/Fluegas
ø150/ø250
Parallel Air/Fluegas
Ø180/ø250
B 350
250 Pa
36 m**
48 m**
89 m**
B 425
250 Pa
20 m
29 m
54 m**
B 510
300 Pa
15 m
24 m
43 m**
B 600
300 Pa
8 m
16 m
30 m
(*) : Without roof terminal, bend(sump) and condensate trap
(**) : Maximum allowed draught is 120 Pa, this means that in case of vertical flue the maximum length is limited to 30 mtrs