Type C32
This boiler is designed for vertical air/flue gas terminals, connected
to the outside by means of coaxial or split pipes.
The distance between the air intake pipe and the flue gas pipe is
to be at least 250 mm and both terminals
are positioned within a square having 500 mm sides.
• Air / flue gas coaxial pipe, 60/100 mm diameter.
Allowable configuration:
1 flanged stub pipe
4 meter long coaxial pipe
1 air/flue gas roof terminal.
Notes:
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
• Air / flue gas 80 mm diameter split pipes
Allowable configuration:
2 flanged stub pipes
19 meter long air intake pipe
19 meter long flue gas pipe
1 air intake terminal
1 flue gas terminal
Notes:
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
- BTFS 24 model: in installations with an equivalent length of less
than 2+2 meters, install a 42 mm diaphragm on the air intake.
- BTFS 32 and BTFS 36 models: in installations with an equivalent
length of less than 9+9 meters, install a 40 mm diaphragm on the
air intake.
Type C42
This boiler is designed for a collective flue gas exhaust system
consisting of two pipes, one for air intake and the other for flue gas,
by means of a coaxial or split pipes.
The collective flue gas exhaust system must comply with
current laws.
• Air / flue gas 80 mm diameter split pipes
Allowable configuration:
2 flanged stub pipes
2 meter long air intake pipe
2 meter long flue gas pipe
Notes:
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
- BTFS 24 model: install a 42 mm diaphragm on the air intake.
- BTFS 32 and BTFS 36 models: install a 40 mm diaphragm on
the air intake.
Type C52
This boiler is to be connected to a split pipe system.
The pipes can operate at different pressure. Terminals cannot
be placed on walls facing each other.
• Air intake/ flue gas 80 mm diameter split pipes
Roof mounted flue gas terminal.
Allowable configuration for max length of split pipes:
2 flanged stub pipes
1 meter long air intake pipe
30 meter long flue gas pipe
1 air intake terminal
1 roof-mounted smoke flue terminal
Notes:
- 1 meter of air intake pipe is equivalent to 2 meters of vertical
flue gas pipe.
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
- BTFS 24 model: in installations with an equivalent vertical flue
gas pipe length, less than 18 meters, install a 40 mm diaphragm
on the air intake.
- BTFS 32 and BTFS 36 models: in installations with an equiva-
lent vertical flue pipe length, less than 4 meters, install a 42 mm
diaphragm on the air intake.
Wall-mounted flue gas pipe
Allowable configuration for max length of split pipes:
2 flanged stub pipes
19 meter long air intake pipe
19 meter long flue gas pipe
1 air intake terminal
1 flue gas terminal
Notes:
- 1.6 meters long air intake pipe is equivalent to 1 meters hori-
zontal flue gas pipe.
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
- BTFS 24 model: in installations with an equivalent length of less
than 9+9 meters, install a 40 mm diaphragm on the air intake.
- BTFS 32 and BTFS 36 models: in installations with an equiva-
lent length of less than 2+2 meters, install a 42 mm diaphragm
on the air intake.
Type C82
This boiler is designed to be connected to a terminal for intaking of
combustion air and an individual or collective flue gas system.
The flue gas system is to comply with current standards.
• Air / flue gas 80 mm diameter split pipes
Allowable configuration for max length of split pipes:
2 flanged stub pipes
4 meter long air intake pipe
1 meter long flue gas pipe
1 air intake terminal
Notes:
- 1.6 meter long air intake pipe is equivalent to 1 meter long hori-
zontal flue gas pipe.
- Reduce maximum length by 1 meter for each 90° elbow.
- Reduce maximum length by 0.5 meter for each 45° elbow.
- BTFS 24 model: install a 42 mm diaphragm on the air intake.
- BTFS 32 and BTFS 36 models: install a 40 mm diaphragm on
the air intake.
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