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5.0 SYSTEM AND DUCTWORK DESIGN
Good duct design and sizing are essential to every Brivis ICE cooling system. Use the Brivis
“SuperSizeGuide” / Brivisize, Technical Data Sheets or HB276.
In general:
•
Ductwork should be airtight and have a minimum insulation rating of R1.0
•
It should also be properly sized, and curves and bends should be smooth enough to ensure that the
air flows through efficiently, quietly and with minimal resistance
•
The registers and diffusers should be large enough and of good design. They should minimise noise,
while providing the correct distribution pattern
•
The positive return air system should be fitted with a grille large enough to accept the full air capacity
of the system at low noise levels
•
Adequate air filtration must be provided
•
If the system uses high level outlets (e.g. ceiling diffusers), then the return air inlet should be at a low
level
5.1 Filtration
A filter must be fitted into the system, and should be easily accessible for regular cleaning. Please refer
to the guidelines for return air filter grilles accompanying the Gas Ducted Heater.
6.0 CONDENSER UNIT INSTALLATION
For the following installation requirements refer to the installation manual supplied with the condenser
unit:
•
OUTDOOR UNIT INSTALLATION
•
REFRIGERATION CHARGE & PIPE-WORK
•
START-UP AND COMMISSIONING
•
SERVICE, MAINTENANCE AND WARRANTY
Note:
It is important that all ductwork and fittings be insulated. It is mandatory under some building
codes to also install fire rated duct. Check with your local authority.
