Santon AU7/3, AU7/1, AU10/3, AU10/1 Installation Instructions

3.3.7 Secure the cable in the cable grip by tightening the two screws.

3.3.8 Set the adjustable thermostat by rotating the control to the required temperature. It is
recommended that it is set to lowest acceptable temperature to meet user requirements. This
will minimise the risk of scalding and reduce the level of scaling in hard water areas.

3.3.9 Replace terminal cover by locating the hinge at the rear. Slide the snaps into place.
Apply pressure to the front of the cover, pushing back and down until it snaps securely in

place.

4.0 COMMISSIONING

4.1 DO NOT SWITCH ON HEATER UNTIL IT IS FILLED WITH WATER

Fill with water by opening tap and leaving open until a full bore of water ows from

the outlet.

4.2 Switch on water heater at double pole isolating switch. The heater will heat water to

the temperature set on the thermostat.

4.3 Check water is heating correctly.

7 litre 1.2kW - after 10 mins water temperature will increase by 20°C•
7 litre 3kW - after 10 mins water temperature will increase by 60°C•
10 litre 1.2kW - after 10 mins water temperature will increase by 15°C •
10 litre 3kW - after 10 mins water temperature will increase by 40°C•

4.4 Pass instruction leaet to user and draw their attention to the following two statements:

DO NOT USE HEATER IF THE WATER IS THOUGHT TO BE FROZEN•

Switch off immediately at the isolating switch if the water does not ow freely.

Any damage resulting from freezing will not be covered by the guarantee.

DURING HEATING THE OUTLET WILL DRIP•

This is due to the expansion of water inside the heater and is normal for heaters of

this type. It does not indicate that the valve is faulty and over tightening of the valve
can result in damage.

5.0 FAULT FINDING

Your Aquarius water heater should give you trouble free operation, however, should a problem

occur the table below should enable most faults to be identied with ease.
Fault nding should only be carried out by a competent person and any replacement part should

be authorised Santon spare parts.

SYMPTOM PROBABLE CAUSE ACTION
No hot water 1. Check power Check and replace as necessary.

2. Faulty cut out

3. Faulty thermostat

4. Faulty element
Water too hot 1. Thermostat set to wrong Adjust thermostat.
/cold temperature

2. Faulty thermostat Switch off, check and replace.

No water ow 1. Frozen Switch off electrical power and

allow to thaw at room temperature.
Do not switch on again until full water

ow restored and full checks made for

leaks and electrical safety.

2. No mains supply Check mains.
Continuous water Faulty valve/tap Check and replace.

ow

6.0 SPARE PARTS

In the unlikely event of your Water Heater developing a fault, the following spare parts are
available:
Element plate assembly 7 litre 1.2kW 95 606 902
Element plate assembly 7 litre 3kW 95 606 903
Element plate assembly 10 litre 1.2kW 95 606 904
Element plate assembly 10 litre 3kW 95 606 905
Element plate assembly gasket 95 611 021
Capillary thermostat 95 612 051
Over temperature cut-out 95 612 050
Top cover moulding 95 614 272
Terminal cover 95 614 273
Adaptor long 95 607 954
Adaptor o-ring 95 607 955
Fixing fork 95 607 956

7.0 GUARANTEE

This product is guaranteed against faulty materials and manufacture for a period of 2 years from
the date of purchase provided that:

The unit has been installed in accordance with the Installation and User Instructions and all 1.
relevant Codes of Practice and Regulations in force at the time of Installation, and that all

necessary controls and safety valves have been tted correctly.
Any valves and controls are of the Santon recommended type and specication.2.
The unit has not been modied or tampered with in any way, and has been regularly maintained 3.

as detailed in the Installation and User Instructions.
The unit has been used only for heating potable water.4.

The unit is not guaranteed against damage by frost, and the inner container with integral
immersion heater is not guaranteed against excessive scale build-up.

This Guarantee in no way affects the statutory rights of the consumer.

Santon’s policy is one of continuous product development and, as such, we reserve the right to

change specications without notice.

8.0 ENVIRONMENTAL INFORMATION

This product is manufactured from many recyclable materials.
At the end of its useful life it should be disposed of at a Local Authority Recycling Centre in order

to realise the full environmental benets. Insulation is by means of CFC-free polyurethane foam.

This product does not contain any substances harmful to health; it does not contain any asbestos.

Customer Service:
Tel: [phone]

Hurricane Way,
Norwich
Norfolk, NR6 6EA.
www.santon.co.uk

PART OF BDR THERMEA

©2011

Fax: [phone]
Email: [e-mail]

Installation and User Instructions

Aquarius Undersink Vented Water Heaters

Models: AU7/3, AU7/1, AU10/3, AU10/1.

Please read and understand these instructions before starting work.

Please leave this leaet with the user following installation

PACK CONTENTS

Heater, Fixing screws and plugs,

Installation and User Instructions, and

Guarantee card.

WARNING

This water heater must only be installed by

competent persons

36005806 Issue 6

1.0 INTRODUCTION

240

240

57

120

100

X

Y

FIGURE 01: DIMENSIONS

2 KEYHOLE
FIXING SLOTS
FOR UNDERSINK
FIXING

120

3rd FIXING
HOLE

DIMENSION X Y

7 LITRE 356 349

10 LITRE 442 435

HOT

COLD

MAINS

STOP COCK

SI N K

CI ST ERN

FIGURE 02:
CISTERN FED APPLICATION

FIGURE 03:
OPEN OUTLET APPLICATION
(USING 'VENTED TAP')

MAINS

HOT

COLD

STOP COCK

VEN T ED H OT TAP

FIGURE 05: WIRING DIAGRAM.

OUTLET

INLET

CABLE CLAMP

TERMINAL BLOCK

EARTH POST

ELEMENT

THERMOSTAT CONTROL

FIGURE 04: INTERNAL LAYOUT

THERMAL CUT-OUT

CAPILLARY STAT

TO ELEMENT

GREEN&YELLOW

BROWN/RED

BLUE/BLACK

EARTH

LIVE (RED)

NEUTRAL (BLACK)

THERMAL FUSE

THERMOSTAT

TERMINAL BLOCK

THERMOSTAT BULB

GROMET

CABLE

Thankyou for purchasing a Santon Aquarius water heater. The Aquarius water heater is
manufactured in the UK to the highest standards and has been designed to meet all the latest

relevant safety specications.

This Aquarius water heater must be installed and maintained by a competent person only. Please
read and understand these instructions prior to installing your Aquarius water heater. Particular
attention should be paid to section three headed INSTALLATION. Following installation the
operation of the heater should be explained to the user and these instructions left with them for
future reference.

This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning the use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that they do not play with
the appliance.

2.0 TECHNICAL SPECIFICATION

Electrical rating ........................................................... 1.17/1.2kW@230/240V~

2.75/3.0kW@230/240V~

Capacities .................................................................... 7 & 10 litres

Weight ......................................................................... 7 litre - 9.3kg, 10 litre - 12.5kg

Rated Pressure.............................................................. 0Mpa (0bar)

Minimum recommended supply pressure ................... Mains fed or cistern fed

(3m head required)

Temperature range ....................................................... 10 to 70°C

3.0 INSTALLATION

3.1 LOCATION

3.1.1 Inlet must always be on the right.

3.1.2 The outlet of this water heater acts as a vent and must not be blocked or restricted in any
way.

3.1.3 Only Santon open outlet accessories must be used with this water heater. A full range is

available, please consult your distributor or Santon for further information.

3.1.4 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 •

3.1.5 Select a suitable site but check that:

a) There is enough clearance above the heater to allow for pipe connections and
removal of the element plate.
b) There are no hidden services where the wall is to be drilled.

3.1.6 Mark the position of the xing holes (as shown in Figure 01).

3.1.7 Drill and plug the hole positions.

3.1.8 Screw in the lower two screws leaving heads 3mm from the wall.

3.1.9 Hang the heater on the two screws.

3.1.10 Screw in top screw to secure heater.

3.2 PLUMBING

3.2.1 This water heater is designed for cistern-fed application in conjunction with a separate
cistern and vent pipe (see Figure 02).

3.2.2 Alternatively the heater can be connected directly to the water mains provided that a
Santon ‘vented tap’ is used (see Figure 03).

3.2.3 Both inlet and outlet pipes are clearly labelled. The pipes are 15mm tube and are suitable

for compression ttings.

3.2.4 It is recommended that a WRAS listed isolating valve (not supplied) be tted in the water

supply pipe to the heater to allow for servicing.

3.3 ELECTRICAL

3.3.1 Warning: 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. regulations.

3.3.2 Nominal cross-section of supply cable must be at least 1.5mm2. A double pole isolating
switch with a contact separation of at least 3mm in each pole must be incorporated in the
supply.

3.3.3 Remove the terminal cover using a large at bladed screwdriver to relieve the snaps

located towards the front at either side of the cover. Gripping the cover at the front, pull
upwards.

3.3.4 Strip the outer sheath and insulation on the cable to the required lengths, push the cable
through the grommet provided, this will be held in the cable grip when the connections are
made (see Figure 04).

3.3.5 Pass the cable underneath the cable grip and through the top moulding.

3.3.6 Make the connections to the terminal block as follows:

Live (brown or red wire) to terminal marked “L”•
Neutral (blue or black wire) to terminal marked “N”•
Earth (green or green/yellow wire) to terminal marked . •