Hydraulic Connections - RED practika 28-33 Use And Installation Manual

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The boiler must be fitted in a room that is sufficiently aired in order to guarantee there is alwas a continuous
flow of air for combustion.
Air inlets linked to the outside must be arranged and, in compliance with the provisions of Standard UNI
10683, these must have the following characteristics:
1. A minimum free cross-section as follows: Practica 28: 168 cm
2. Be provided as close to floor-level as possible;
3. Be suitably protected by a wire mesh or grate so that the free cross-section for air passage is not
reduced;
4. Be positioned in such a way as not to be obstructed in any way.
The correct supply of air can be guaranteed through apertures into an
adjoining room, provided that direct ventilation is provided and that such
a room is not a fire hazard, such as store rooms, garages or warehouses,
in accordance with the regulations set out in Standard UNI 10683.
It is advisable to install the boiler in premises which do not contain appliances that do not operate in a
room-sealed manner or appliances that could depressurise the room itself compared to the outside and
thereby cause problems relating to poor draft for the smoke evacuation system (UNI 10683).
5.3.

Hydraulic connections

System installation procedure
PRACTIKA 28-33
USE AND INSTALLATION MANUAL
Female G 1 ½" system flow connection
Combustion gas outlet duct pipe
Female G ½" outlet connection
Female G 1 ½" system return connection
Technical dept. - All rights reserved - Reproduction prohibited
2 2
- Practica 33: 198 cm
Chapter 5
page 25
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