Flueing Options - Rinnai INFINITY N56kWi Installation Manual

Internal water heater polypropylene (pp) concentric flue installation guide

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Flueing options

Polypropylene concentric flueing is for the N56kWi internal unit only. It has a plastic inner pipe to

discharge products of combustion and a plastic outer pipe for air supply to the appliance.

Each Rinnai INFINITY N56kWi water heater is flued individually, refer flueing options below.

Direct flueing

For direct flue installations through an external wall using the direct horizontal flue kit

FFP100HKIT—maximum wall thickness 550 mm.

Horizontal extension flueing

For flue installations through an external wall using the direct horizontal flue kit

FFP100HKIT and additional lengths of pipe FFP100PIPE.

Please note:

Slope horizontal flues back towards the water heater at a 25 mm fall per metre to drain

condensate.

Vertical straight flueing

Installations where the internal unit is flued vertically through the roof.

Combination flueing

Installations using a combination of horizontal and vertical flueing.

4 | Rinnai INFINITY N56kWi concentric flue installation guide 12746-B 02-20

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