Installation Instructions
Page 11
3.0 Unit Installation
BONAIRE
EAC
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Lift the fan deck onto the roof and reinstall into the unit. Ensure the venturi is
correctly rotated for the motor wiring loom and has snapped into the location
notches. Spin fan blade by hand to ensure that the blade does not touch the inlet
ring.
•
Reconnect the fan loom to the control box.
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Connect communication cables to the control box
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Feed the communication cable and the 240-volt plug and cable set through the
50mm electrical entry drilled into the dropper duct. Ensure the 50mm rubber
grommet supplied is used to ensure an electrical hazard is not created.
3.4 Installing the Duct Work
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Use only insulated ductwork to a thermal resistance of insulation
minimum of R1.0, designed and installed to ‘BONRES’ System
Design guidelines. All bends must have a minimum radius of 1.5
times the diameter. All joins must be taped airtight.
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Flexible ductwork connected to the dropper duct must be designed and installed
to the ‘BONRES’ System Design Guide in conjunction with industry based best
guidelines.
•
Cut flexible duct to the correct length to ensure no excess duct is left in the
system. This will ensure minimum system resistance and maximum air flow.
•
All duct work should be streamlined. Avoid sharp angles that will reduce airflow.
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The minimum bend radius is 1.5 times the duct diameter
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The last bend to each ceiling register must be a smooth radius so that airflow is
even into the room.
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Do not squash duct work to fit through small openings, as airflow will be
restricted. Find a better location.
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If more than 6 metres of flexible duct work are required in one length, the next
size up flexible duct must be used.
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All duct work in ceiling spaces or hot areas must be well insulated.
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All external exposed duct work must be weatherproofed.
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All duct work must be taped airtight.
