Bedienungsanleitung De Dietrich Gas 310 ECO (Seite 22 von 76) (Englisch)

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De Dietrich Gas 310/610 ECO

7.3 Flue gas discharge and air supply Venting

7.3.1 General

The Gas 310/610 ECO is suitable for both

conventional room-supplied or direct vent

(sealed combustion air) applications. All vent

terminals should comply with the local and

national codes. Any horizontal pipe-work in the

flue gas discharge system should slope towards

the boiler. Horizontal pipe-work in the air supply

system should slope towards the supply opening

and may require a drain point at the low point.

Care should be taken when locating the flue exit

points as a vapor plume will be visible when the

boiler is operational (flue gas temperature can

be less than 170°F [75°C] resulting in the water

vapor condensing upon contact with the air).

7.3.2 Boiler Venting Types

Flue gas venting material: Use only an

approved gas vent category II and IV type “BH”

Made of AL29-4C® or SS316 as approved. Do

not use PVC-CPVC plastic vent systems.

7.3.3 Venting options

The standard delivery of the De Dietrich Gas

310/610 ECO boiler can be installed with any of

the venting options listed above. See each

respective section for details.

7.3.4 Vent Termination Inlet/Outlets

The vent terminals must be installed to provide

suitable protection against wind, rain, snow or

blockage along with a rodent/debris screen.

See section 7.3.6 & 7 for other requirements.

Conventional chimney application tapered

(finishing) cone, and sidewall or direct vent

applications require a termination TEE or 90°

Elbow fitting.





Warning:

The flue gas vent pipe must be airtight and

watertight. Horizontal sections of the venting

must slope downward towards the boiler ½” per

linear foot [12mm] and adequate vent support

must be provided.

7.3.5 Combustion Air Supply Requirements

The boiler requires a clean, fresh and

adequate supply of combustion air, failure to

provide sufficient combustion air supply will

result in carbon monoxide (CO) production that

could lead to personal injury including loss of life

or damage to boiler or property. Do not store

any flammable liquids, fluids, vapors or materials

near the vicinity of the boiler.

Special attention:

 Quality of combustion air

 Dust, fumes, corrosive elements,

hydrocarbons, other unknown

containments

 Paint, beauty, automotive etc. shops

Room combustion air supply requirements:

The boiler must be provided with an adequate

combustion air supply, the combustion air supply

requirements must be determined and sized in

accordance to national and local codes having

jurisdiction. CSA B149 & ANSI Z223.1 – More

than one combustion air source maybe required.

An optional filter should be fitted air intake

housing.

Air supply venting materials:

Aluminum, galvanized or stainless steel

material, do not used flexible/corrugated

materials.

Air supply structure:

The air supply pipe must also be airtight.

Horizontal sections in the air supply must slope

away from the boiler towards the supply opening

and incorporate a drain connection if the route

rises from a lower point. It is necessary to

provide an easily removable air vent for

maintenance reasons from the boiler air intake

connection.

Conventional Chimney Applications:

(Section 7.3.6)

A vertical chimney-vent system with either room

or direct vent supplied (sealed combustion) air

supply.

CLV – Sealed Combustion Systems

Applications: (Section 7.3.6)

A vertical chimney vent system with direct vent

combustion air supply (sealed combustion),

operating at two different pressure zones or vent

terminal locations.

Sidewall Vented Applications: (Section 7.3.7)

A horizontal venting system for the exhaust and

air intake, the flue gases and combustion air

terminated at same elevation and pressure level,

can be either room supplied combustion air or

direct vented (sealed combustion)

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