9
the pressure relief device and that this pipe must
be left open to the atmosphere. The pressure
relief device is to be operated regularly to
remove lime deposits and to verify that it is not
blocked.
`
The pipe material should be capable of
conveying water/steam at 100°C.
`
The final discharge point should be in a safe,
visible position.
6.3 Electrical connections
WARNING
`
Disconnect from the mains
electrical supply before removing
any covers.
`
This product must be earthed. It is
suitable for a.c. supply only.
`
Disconnect the electrical supply
before removing the terminal
cover.
`
Installation must be in accordance
with the current I.E.E. Wiring
Regulations.
`
The product is supplied fitted with a 0.75m 3
core 1.5mm
2
flexible cable on the 3kW model
or a 0.75m 3 core 2.5mm
2
cable on the 4.5kW
model. The electricity supply should be fused 13
Amp for a 3kW model and 20 Amp for a 4.5kW
model and be via a double pole isolating switch
with a contact separation of at least 3mm in both
poles. Refer to the schematic wiring diagrams
below.
The wires are colour coded as follows:
Green and Yellow
EARTH
Brown
LIVE (L)
Blue
NEUTRAL
(N)
