Install The Fume Exhaust Hose - Ff - Ariston M1 10L FF Service Manual

2.5.2 Install the fume exhaust hose - FF

The water heater must be mounted with fume exhaust hose
with ID Φ60mm. Please do not use the fume exhaust
hose with other diameter.
Fume exhaust hose can be extended to 3m/3elbows at
most.
Please calculate the hose length and required number of
elbows with below equation:
W=L+Mx2
L: Length of connected hose (m)
M: Number of elbows (pc)
If W>9, do not use the water heater.
Front fume exhaust section is indicated as one elbow
included in the total number of elbows.
Install the extended pipe with 1/50 inclination downward horizontally.
2.5.3 Install the fume exhaust hose - FFI
The water heater must be mounted with fume exhaust hose with ID Φ60mm/Φ100mm, and the
accessory pipe is 0.75m. Please do not use the fume exhaust hose with other diameter.
Fume exhaust hose can be extended to 2m/1bend at most.
Install the extended pipe with 1/50 inclination downward horizontally.
1．Typical installation case
3．Extend perpendicularly: L ≤0.5m
Technical Manual for DGI
2． Extend horizontally: L≤1m
4．Two elbows: the extended pipe is between
the two elbows, 0.15≤L≤0.5m
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