Key
A
Duct (75mm-150mm diameter)
B
Ambient air is drawn into duct
C
Chimney
D
25mm vertical gap between chimney and duct
2.4
Electrical Connections
Connection by a qualified electrician is recommended.
The product covered by this manual normally requires a single phase A.C. supply, which
may be Live to Neutral non-reversible, Live to Neutral reversible or Live to Live. Some
models may be ordered for 3-phase use, which may be star or delta.
Check the product rating label before connection. The supply voltage should agree with
the voltage on the label and the supply capacity should be sufficient for the current on
the label.
The supply should be fused at the next size equal to, or higher than the current on the
label. A table of the most common fuse ratings is also given towards the back of this
manual. When the mains cable is factory fitted, internal fuses are also fitted. It is
essential that the operator ensures that the product is correctly fused.
Products with a factory fitted supply cable are designed to be wired directly to an
isolator or fitted with a line plug.
Products without a factory fitted supply cable require a permanent connection to a
fused and isolated supply. The product's electrical access panel should be temporarily
removed, and connections made to the internal terminals.
If the product is to be connected by line plug. The plug should be within reach of the
operator and should be easy to remove.
When connecting the product to an isolating switch ensure that both conductors (single
phase) or on all live conductors (three phase), and should be within reach of the
operator.
The supply MUST incorporate an earth (ground).
7
2.0 Installation
