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Connection to multiple flues or single flues with natural draught
To connect the MODENA 38C HE boiler to a multiple flue or a single flue with natural draught, the flue or chimney must be
expressly designed by professionally qualified technical personnel in conformity with the current standards and regulations.
In particular, flues and chimneys must:
•
Be sized according to the method of calculation given in the standard.
•
Be tight with respect to the products of combustion, resistant to the fumes and heat and impermeable to condensate.
•
Have a circular or square cross-section (some hydraulically equivalent sections are permissible), with a vertical pro-
gression and with no constrictions.
•
Have the ducts conveying the hot fumes at a suitable distance or separately from combustible materials.
•
Be connected to just one unit per floor, for not more than 6 units (8 if there is a compensation duct or opening).
•
Have no mechanical suction devices in the main ducts.
•
Be at low pressure, all along their length, in conditions of stationary operation.
•
Have at their base a collection chamber for solid materials or condensate, of at least 0.5 m, equipped with an airtight
metal door.
2.7 Condensate drain connection
Installation
The boiler has an internal trap for draining condensate. Fit the inspection coupling A and the hose B. Fill the trap with
approx. 0.5 L of water and connect the hose to the disposal system.
B
18
0.5
litres
A
fig. 25
cod. 3541G612 - Rev. 00 - 11/2017
MODENA 38C HE
EN
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