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Maxima 35 C
Connection to collective fl ues or single fl ues with natural draught
If you are then going to connect the Maxima 35 C boiler to a collective flue or a single flue with
natural draught, the flue must be expressly designed by professionally qualified technical personnel in
conformity 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 condensate
• Have a circular or square cross-section (some hydraulically equivalent sections are permissible), with
a vertical progression and with no constrictions
• 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.
2.7 Condensate outlet connection
A
The boiler is equipped with an internal air-trap to drain off the condensate. Fit the inspection bowl A
and the hose B, pushing it out for approximately 3 cm.
Fill the air-trap with approximately 0.5 l. of water and connect the hose to the waste system
or soakaway.
B
fig. 12
0,5 lt.
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