13
6.0 Fan Speed Setting
There are three fixed fan speed options available with the Classic units, these are:
•
High - “
HIGH
” (Factory Default)
•
Medium - “
MED
”
•
Low - “
LOW
”
The fan speed setting can be modified at the “4-Way Terminal Block” and for its location refer to Diagram 9.
Diagram 9.
4-Way Terminal Block Location
To adjust the fan speed setting ensure the power supply to the unit is
OFF
at the fixed switched socket outlet
adjacent to the heater. Access controls and change as required:
•
For High fan speed do not adjust.
•
For Medium fan speed move terminal from “
HIGH
” to “
MED
”.
•
For Low fan speed move terminal from “
HIGH
” to “
LOW
”.
•
Turn the power back on once complete.
7.0 Ducting Information
Good duct design and sizing are essential to every Brivis Central Heating system. Use the Brivis
"SuperSizeGuide"/Brivisize™ and technical data within this manual for the best results and follow these guidelines:
•
Ductwork should be well insulated, airtight and have a minimum insulation rating of R1.O (R1.5 in some
areas). Ensure that ducting complies with the Building Code of Australia
•
The ducting should be well fastened to pops, BTO's, outlet boots and neck adapters adequately with duct
tape, in accordance with AS 4254
•
It should be correctly sized with the curves and bends smooth enough to ensure the air flows through
efficiently and quietly 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 and minimum resistance
•
If the system uses high level outlets (e.g. ceiling diffusers), then the return air inlet should be at a low level.
Ceiling systems with a high level return air may result in reduced performance
Note:
The ducting should be well insulated and it is mandatory under
building codes to install insulated fire rated
duct.
4-Way Terminal Block
2PWN – Beneath the fan cabinet access panel
BX3 –Beneath the roof and adjacent to main PCB
Note:
The 4-Way Terminal Block for the DF3 & UF3 is located beneath the control panel.