Rinnai 21
Ducted Gas Heater IM
6. FLUE INSTRUCTIONS AND CLEARANCES
6.1 INTERNAL – SP SERIES
6.1.1 General
• All flues shall be installed in accordance with AS/NZS 5601.
• Horizontal flues shall have a minimum rise of 20mm per 1m run.
• Horizontal flues terminating on a wall shall be at least 300mm above ground level.
• An external flue terminal clearance to an opening in a building shall be no less than 1000mm in the vertical
direction and 300mm in the horizontal direction.
• Systems with both vertical and horizontal flue runs should be treated as all horizontal.
• One 45º bend is equivalent to one half 90º bend (i.e. two 45º bends = one 90º bend).
• Provide adequate support to flue sections (e.g. saddles / strapping).
6.1.2 SP4UN Models – 100mm Non-corrosive Metal Flue.
• Requires a 100mm round single or twin wall non-corrosive metal flue, suitably terminated.
• All flues shall have a bolted flue sleeve connection to allow for repairs and/or removal of the appliance.
• Twin Wall flue – maximum flue length of 6m.
• Single Wall flue – maximum flue length of 2m.
• Up to four 90º elbows are permitted with the same length requirements specified above.
6.1.3 Remote Terminal (Part No. B018384) Internal Model Applications
In specific installations, for example under the floor, it is recommended that a remote terminal be used to terminate
the flue on the outside wall of the building. Please refer to the instructions supplied with a remote flue terminal.
Diagram 11 depicts a typical SP4UN underfloor configuration.
Diagram 11.
Typical Remote Terminal Configuration - SP4UN Models
GAS INLET
FLUE OUTLET
HOUSE FLOOR
LEVEL CONCRETE BASE
GROUND LEVEL
WALL
Minimum
300 mm
Minimum 20 mm rise per 1 metre run
BRIVIS REMOTE FLUE TERMINAL
Single Skin Flue Maximum Length = 2 m
Twin Wall Flue Maximum Length = 6 m
Fix in place
with screw
