5
Tank installation
Logano G334X – 6 720 811 237 (2014/05)
17
Fig. 22 Supply connection
[1]
Boiler
[2]
Safety valve
[3]
Supply manifold pipe (factory-installed)
[4]
90° elbow (¾ " NPT)
[5]
Supply connection
5.9
Installing front wall of boiler
▶ Hang front wall of boiler [1] from above, fold down
▶ Screw in locking screws [2] at the bottom of the front wall.
Fig. 23 Installing front wall of boiler
[1]
Front wall of boiler
[2]
Locking screws
5.10
Connecting the flue connector
5.10.1 Check openings for combustion air supply and venting
To ensure an adequate combustion air supply and venting of the heating
system, suitable measures must be taken in accordance with the
National Fuel Gas Code, NFPA 54 (ANSI Z223.1), Chapter 5.3, Air for
Combustion and Ventilation, and the local building codes. In Canada the
regulations in accordance with CAN/CSA B 149.1 and 2 Installation
Codes apply.
Total air supply from inside the building
Make sure that the installation room has two permanent air vents that
are connected to one or more other rooms. When calculating the cross-
sectional areas of the vent openings, the total burner output of all gas-
fired appliances in the connected rooms must be taken into account.
Each vent must have a minimum cross-section of one square inch per
1000 Btu/h (2200 mm
2
/kw) of the total burner output of all gas-fired
appliances inside the connected rooms. Make sure that the cross-
sectional area of each vent is at least 100 square inches (0.06 m
2
). One
of the vents must be no more than 12 inches (300 mm) from the ceiling
and the other no more than 12 inches (300 mm) from the floor of the
boiler room, measured from the outer edge of the vent opening.
The smallest dimension of all air intake and outlet openings must be not
less than 3 inches (80 mm).
1
2
3
4
5
6 720 806 028-17.1T
1
2
6 720 810 547-35.1T
NOTICE:
Risk of boiler damage and malfunctions due to
missing or inadequate openings for combustion air and
venting of the installation location!
Inadequate venting of the installation room may result in
excessive ambient temperatures. This can damage the
boiler.
Inadequate combustion air supply may cause
malfunctions.
▶ Make sure that air intake and outlet openings are not
closed off or their size reduced and that they are
adequately dimensioned.
▶ The boiler must not be operated until the obstruction
has been removed.
▶ Draw the owner's/operator's attention to any
deficiencies and the potential dangers.
NOTICE:
Risk of boiler damage due to dirty combustion
air.
▶ Never use cleaning agents containing chlorine and
never use halogenated hydrocarbons (as, for
example, contained in spray cans, solvents, cleaning
agents, paints and adhesives).
▶ Do not store or use these substances in the boiler
room.
▶ Avoid excessive dust accumulation.
If impurities in the combustion air are possible (e.g.
installation near swimming pools, dry cleaners or
hairdressing salons), sealed combustion is
recommended.
Summary of Contents for G334X
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