Specifications

SARIgas Zoom Z – ZF Page 15
Rev.2
MAXIMUM LENGTHS ALLOWED FOR THE PIPING WITH "COAXIAL" AIR INTAKE EXHAUST
FUME SYSTEMS C
12
C
32
C
42
The maximum length of the piping for the straight coaxial pipe is 3 metres for the horizontal pipe and 4 metres for the
vertical version.
With length less than 0.7 metre., a diaphragm of ∅ 46 mm must be fitted into the opening of the ventilator, which is
supplied by us (see Figs. 9-10-11 page 12.).
Coaxial exhaust flue pipes diameter 60/100 mm
Table “A”
Minimum length Maximum length
With diaphragm ∅ 46 mm
0,2 m 0,7m
Without diaphragm 0,7 m 4 m (vertical)
MAXIMUM LENGTHS ALLOWED FOR PIPING WITH "SEPARATE" AIR INTAKE EXHAUST
SYSTEMS C
12
C
32
C
42
C
52
B
22
- The maximum length of the piping is obtained by adding the flue expulsion pipe to the length of the air suction pipe.
- The sum of the two lengths must not exceed 30 metres, each direction change reduces the available length in the
pipes by the following ratio:
 For 45° angles, reduction is 0.5 metre per unit (for ∅ 80 mm pipes).
 For 90° angles, reduction is 1 metre per unit (for ∅ 80 mm pipes).
Separate exhaust flue pipes, diameter 80 mm C
12
C
32
C
42
C
52
Table “B”
Minimum length Maximum length
With ∅ 46 mm. diaphragm
0,2 m +0,2 m 5 m + 5 m
Without diaphragm 5 m + 5 m 10 m + 20 m
Only exhaust flue pipe, diameter 80 mm B
22
Maximum length
With ∅ 46 mm. diaphragm
16 m
Without diaphragm 23 m
Separate exhaust flue pipes, diameter 100 mm C
12
C
32
C
42
C
52
Table “C”
Minimum length Maximum length
Without diaphragm (above 30 m) 20 m + 70 m
N.B. : the air suction pipe cannot exceed a maximum distance of 10 metres per pipe ∅ 80 mm and 20 metres for
pipes of ∅ 100 mm. In case of distances exceeding 10 metres (20 metres for the pipe ∅100mm) remove the
drawing on the intake hole of the comburent air (Fig.11 Ref. 5).
 For a 45° bend, reduction is 0.5 metre per unit (for ∅ 100 mm pipes).
 For a 90° bend, reduction is 1 metre per unit ( for ∅ 100 mm. pipes).
- The maximum lengths for the flue pipes refer to material supplied by us.
- SARIgas declines all responsibility for poor working of the boiler, damage to people and things caused by the use of
material not supplied by us.
- The condensation limit at 32°F is 5 metres. (flue outlet pipe length).
IMPORTANT: if necessary, insulate the flue outlet pipe to avoid temperature drop of the fumes along the pipes. Max.
drop allowed per metre of pipe must be less than 34°F.