Ferroli DOMIcompact F 30 B, Instructions For Use, Installation And Maintenance

Page: 22 / 44

22 23
Ferroli F 30 B Ferroli F 30 B
Connection to collective flues or single flues with natural draught
If you are then going to connect the Ferroli F 30 B boiler to a collective flue or a single flue with natural
draught, the flue must be expressly designed by professionally qualified technical personnel in confor-
mity with the standards and rules in force.
In particular, flues must have the following characteristics:
• Be sized according to the method of calculation stated in the standard
• Be airtight to the products of combustion, resistant to the fumes and heat and waterproof for the con-
densate
• Have a circular or square cross-section (some hydraulically equivalent sections are permissible), with a vertical
progression and with no restrictions.
• Have the ducts conveying the hot fumes adequately distanced or isolated from combustible materials
• Be connected to just one unit per floor, for at most 6 units in all (8 if there is a compensation duct or
opening)
• Have no mechanical suction devices in the main ducts
• Be at a lower pressure, all along their length, under conditions of stationary operation
• Have at their base a collection chamber for solid materials or condensation of at least 0.5 m, equipped
with a metal door with an airtight closure.
fig. 13
0,5 lt.
A
B
2.7 Condensate outlet connection
The boiler is equipped with an internal siphon to drain off the condensate. Fit the inspection bowl A and the hose B ,
pushing it on for approximately 3 cm.
Fill the siphon with approximately 0.5 l. of water and connect the hose to the waste system or soakaway.
0,5 l.