Gas Connection; Air And Flue Gas Ducts; Hydraulic Connections - ferolli SKY ECO C Instrucción De Uso, Instalación Y Mantenimiento

SKY ECO C
fig. 6 - Rating label

2.4 Hydraulic connections

Never support the water heater by the water/gas connections. Make
the connections in accordance with the dimensions and connections shown
in section 4.1.
There are labels on the unit identifying the 1/2" water inlet pipe (white) and the 3/4" gas
inlet pipe (yellow).
fig. 7 - Connection cards
If the water hardness is over 25ºFr ( 1ºF=10ppm CaCO3), the water
must be treated to avoid possible deposits on the unit.

2.5 Gas connection

Before making the connection, check that the unit has been prepared to
operate with the right type of fuel, and carefully clean the gas pipes to remove
any residue that might hinder correct operation. Make this connection in
accordance with the dimensions and connections in section 4.1.
1 - Connect the corresponding gas inlet (see section 4.2) in accordance with current
regulations in the country where the heater is being installed.
2 - Connect using a rigid metal pipe (connection to a gas supply network) or a
flexible, continuous stainless steel pipe (LPG installation), adding a shut-off valve
between the installation and the unit (AS CLOSE TO THE UNIT AS POSSIBLE).
3 - Once the connection to the gas network is complete, check that all gas connections are
tight. For this purpose, a tightness test must be performed. To avoid damage to the unit
due to excess pressure, leave the gas inlet valve closed.
4 - Check that the supplied pressure and gas delivery values are those indicated for the
unit's consumption. See the technical data table (section 4.5).
In installations with an approved flexible pipe for LPG, pay special
attention to the following:
• The pipe must comply with applicable regulations.
• Avoid areas with heat emissions.
• Prevent the pipe from bending or being pinched shut.
• The connections on both sides (gas valve and other components) must comply with the
regulations of the country where the heater is installed.

2.6 Air and flue gas ducts

The diameter of the pipe connecting to the flue must not be smaller than that of the pipe
connecting to the draft hood. After the draft hood, there must be a vertical segment
at least half a meter long. The dimensions and installation of the flues and the tube
connecting to them must comply with current standards.
The heater is equipped with a safety device (flue gas thermostat) that stops the unit from
operating if insufficient air is circulating or the flue is blocked.
Do not alter or disassemble this device for any reason.
code A73022200
37
ENG