4
3.0 INSTALLATION
This appliance must be earthed. It is suitable for a.c. supply only. Electrical
installation must be carried out by a competent electrician and be in accordance
with the latest I.E.E. wiring regulations.
3.1 LOCATION
3.1.1 Select a suitable site such that
a) there is enough clearance under the heater to allow removal of the element plate.
b) when using the outlet spout, it will swing over the sink (or sinks) to be supplied.
c) there are no hidden services where the wall is to be drilled.
3.1.2
Mark the position of the fixing holes (as shown in Figure 01).
3.1.3 Drill and plug the hole positions.
3.1.4 Screw in the top two screws leaving heads 3mm from the wall.
3.1.5 Hang the heater on the two top screws.
3.1.6 Screw in bottom screw to secure the heater.
3.2 PLUMBING
3.2.1 The heater is designed to be connected directly to the mains via the valve
provided or Heatrae Sadia open outlet taps.
3.2.2 It is recommended that a WRAS listed isolating valve (not supplied) be
fitted in the water supply pipe to the heater to allow for servicing.
3.2.3 The inlet must always be on the right.
3.2.4 In both undersink and oversink installations the inlet and outlet connections
must remain beneath the heater.
3.2.5 The outlet of this water heater acts as a vent and must not be blocked or
restricted in any way.
3.2.6 Connect the control valve supplied to the inlet pipe on the water heater.
3.2.7 Connect the cold water main to the control valve using 15mm outside
diameter pipe (either copper to BS EN 1057 or stainless steel to BS 4127).
3.2.8 Push the outlet spout directly into the outlet fitting.
3.2.9 To remove outlet spout, push white ring upwards towards body of fitting
and pull spout downwards.
3.2.10 The installation must be carried out in accordance with the relevant
requirements of:
•
The appropriate Building Regulations either The Building Regulations, The
Building Regulations (Scotland) or Building Regulations (Northern Ireland).
•
The Water Fittings Regulations or Water Byelaws in Scotland.
3.3 ELECTRICAL
Disconnect the electrical supply before removing the cover. Installation must be in
accordance with the current local wiring regulations. A double pole isolating switch,
with a contact separation of at least 3mm in both poles, should be incorporated
in the electrical supply. The supply should be fused 13 Amp. The nominal cross
sectional area of the supply cable must be 1.5mm
2
minimum.
3.3.1 Remove terminal cover.
