18
Installation
Wiring
WARNING: The unit MUST be earthed. All wiring must conform to current I.E.E.
Wiring Regulations and all applicable standards and Building Regulations.
The unit is suitable for 230V~50/60Hz Single phase supply fused at 3A.
For connection of the mains and boost trigger switch a terminal block is fi tted
inside the unit, under the cover. Note: strain relief for the cables is provided.
A double pole isolation switch with contact separation of at least 3mm must be
used to connect the appliance to the fi xed wiring.
A boost switch must be connected for the unit to run, see wiring diagram (a con-
nection is required between COM and L1 or L2 for the unit to operate).
Boost controls must not be located in a bath/shower room or within 1 metre of a
cooker or where they may be aff ected by excessive heat or moisture.
Boost controls should be clearly identifi ed and conveniently located.
The boost can be operated by any device which provides a two-way switch suit-
able for a 230V/3A mains power supply.
Cable Access must be via the preformed cable entries on the unit cover and
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•
•
•
•
•
•
•
Two Way switch
Double Pole Isolator
3A Fuse
L2
L1
L
COM
N
L
N
Wiring Diagram for Continuous and Boost Speeds 1, 2 or 3
Online Version
