15
Electric shower
ELECTRICAL INSTALLATION
IMPORTANT:
Switch off the electricity supply
at the mains before proceeding.
The supply cable
MUST
be secured either by
routing through conduit, in trunking, or by
embedding in the wall, in accordance with IEE
regulations.
NOTE:
Conduit entry can only be from rear.
Deviations from the designated entry points
will invalidate product approvals -
see Entry
Points fig.2.
Seal around rear entry cable to prevent water
ingress into the wall.
Route the cable into the shower unit for
connection to the terminal block
(fig.13)
as follows:
Earth
cable to terminal marked
Neutral
cable to terminal marked
N
Live
cable to terminal marked
L
Once the cables have been installed, fit the two
trimplates.
Fig.12
shows a schematic wiring diagram.
IMPORTANT:
When connecting the cable,
fully tighten the terminal block screws and
make sure that no cable insulation is trapped
under the screws. Loose connections can
result in cable overheating.
NOTE:
The supply cable earth conductor
must be sleeved. The outer sheath of the
supply cable must be stripped back to the
minimum.
The use of connections within the unit or other
points in the shower circuit to supply power to
other equipment i.e. extractor fans, pumps, etc.
will invalidate the guarantee.
DO NOT
switch on the electricity supply until
the shower cover has been fitted.
T00404
1.
2.
3.
4.
5.
6.
7.
8.
9.
Terminal block
Start/Stop switch
Power selector
Microswitch
Solenoid valve
Thermal cut-out (main)
Neon - power
Element
Neon - low pressure
Low pressure
microswitch
2
3
4
5
6
7
L
N
E
inlet
outlet
1
3
7
8
9
Fig.12
NOTE:
The terminal block & mounting are
designed to be fitted either side of shower
with single screw fixing. To switch to opposite
side simply remove screw and reposition
on opposite side using the same screw but
utilising opposite fixing hole. Wires must be
tucked in to avoid any issues when fixing
cover, wires to follow route as below
(fig. 13)
LH Fixing
(factory set)
RH Fixing
(on installation)
Fig.13
Summary of Contents for NOVA Thermostatic Series
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