24
8.4 Boiler categories - types of flue gas systems.
CE string
flue gas
material
E
u
ro
p
e
a
n
s
ta
n
d
a
rd
Temp
e
ra
tu
re
c
las
s
P
re
s
s
u
re
c
las
s
R
e
s
is
ta
n
c
e
t
o
c
o
n
d
e
n
s
a
te
C
o
rr
o
s
ion
re
s
is
ta
n
c
e
c
la
s
s
Met
a
l:
li
n
e
r
s
p
e
c
if
ic
a
tion
s
S
o
o
t
fire
re
s
is
ta
n
c
e
c
la
s
s
D
is
ta
n
c
e
t
o
c
o
mbu
s
tible
mat
e
rial
P
la
s
ti
c
s
:
loc
a
tion
P
las
ti
c
s
:
fire
b
e
h
a
v
iou
r
P
la
s
ti
c
s
:
e
n
c
los
u
re
min. req. PP
EN 14471
T120 P1
W
1
O
30
I of E
C/E
L
min. req. SS
EN 1856-1 T120 P1
W
1
L20040
O
40
8.5
Flue Terminal
Never use aluminum containing flue gas materials for this boiler range
The flue terminal duct can be made of:
•
Stainless steel in combination with
T120
gaskets.
•
PP temperature class
T120.
8.5.1
H
ORIZONTAL
F
LUE
T
ERMINAL
P
OSITIONING
Please refer to the relevant British Standards:
•
BS 5440-2
– Flueing and Ventilation for Gas Appliances of Rated Input not Exceeding 70kW = (S-FX70).
•
BS 6644
– Installation of gas fired hot water boilers of rated inputs between 70kW – 1.8MW.
Please refer to the Instition of Gas Engineers and Manager Documents (IGEM):
•
IGEM/UP/10 Edition 4
– Installation of gas fired hot water boilers of rated inputs between 70kW –
20MW.
*** Appendix 9
– Risk Assessment for Postioning of Horizontal Flues Terminations.
8.5.2
V
ERTICAL
F
LUE
T
ERMINAL
P
OSITIONING
Please refer to the relevant British Standards:
•
BS 5440-2
– Flueing and Ventilation for Gas Appliances of Rated Input not Exceeding 70kW = (S-FX70).
•
BS 6644
– Installation of gas fired hot water boilers of rated inputs between 70kW – 1.8MW.
Please refer to the Instition of Gas Engineers and Manager Documents (IGEM):
•
IGEM/UP/10 Edition 4
– Installation of gas fired hot water boilers of rated inputs between 70kW –
20MW.
8.5.3
C
OMMON
F
LUE
/
D
UCTS
Multiple boilers can be connected to a common duct. These flue gas systems for multiple boiler installations must
always be engineered as zero or negative pressure systems with all but one boilers firing in high fire; this to prevent
the risk of recirculation of the flue gases.
Summary of Contents for S-FX 125
Page 2: ......
Page 11: ...11 4 BOILER DIMENSIONS 4 1 S FX 70 4 2 S FX 125 ...
Page 12: ...12 4 3 S FX 220 4 4 S FX 320 ...
Page 28: ...28 9 4 Electrical Schematics S FX 70 ...
Page 29: ...29 S FX 125 ...
Page 30: ...30 S FX 220 320 ...
Page 67: ...67 BLANK PAGE ...