AQUABELLA SHOWER AQUAS REVA FLEX User manual

These instructions contain all the necessary fitting and operating instructions for your electric shower.
Care taken during the installation will provide a long, trouble free life from your shower.
INSTRUCTION GUIDE AND USER MANUAL
INSTANTANEOUS ELECTRIC WATER HEATER - AQUAS REVA
AQUAS REVA FLEX SMART 9.5KW
By
AQUABELLA SHOWER CO.,LTD.
IMPORTANT !
This Step-by-Step guide should be given to the customer
after installation and demonstration

PLEASE READ THIS IMPORTANT SAFETY INFORMATION
WARNING: DO NOT operate shower if frozen, or suspected of being frozen.
It must thaw out before using.
DO NOT operate the unit if the showerhead or spray hose becomes
damaged.
DO NOT restrict flow out of shower by placing showerhead in direct contact
with your body.
DO NOT operate the shower if water ceases to flow during use or if water
has entered inside the unit because of an incorrectly fitted cover.
WARNING: If restarting the shower immediately after stopping, be aware
that a slug of hot water will be expelled for the first few seconds.
PLEASE READ THIS IMPORTANT SAFETY INFORMATION (CONT.)
IMPORTANT: 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 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.
IMPORTANT: To comply with water regulations, building regulations or any specific local water
company regulations and should be in accordance with BS EN 806. A double check valve must be
fitted with all flexible shower accessories where it is possible that the showerhead may come into
contact with used water i.e. In the bath or shower tray.
IMPORTANT: Before turning on the water supply to the shower unit the water supply pipe should
be flushed out to remove debris. After flushing the pipework ensure that the shower unit is
positioned squarely on the wall and tighten the screws. Tighten all plumbing connections and
check the pipework for leaks.
IMPORTANT: Ensure that the terminal block screws are fully tightened and that no cable insulation
is trapped under screws. Ensure the cable clamp is used to secure the cable. The earth continuity
conductor of the electrical installation must be effectively connected to all exposed metal parts of
other appliances and services in the room in which the shower unit is installed.
CAUTION: Check there are no hidden cables or pipes before drilling holes for wall plugs.
Exercise great care when using power tools near water. The use of a residual current device
(RCD) is recommended.
WARNING: If re-starting the shower immediately after stopping, be aware that a slug of hot water
will be expelled for the first few seconds.
ATTENTION: Do not operate the shower unit if the showerhead or hose becomes damaged.
The shower is designed and approved to EN-60335 with the showerhead provided.
Under no circumstances must any showerhead that is not approved by the manufacturer be used
with this product.
IMPORTANT: The shower unit must be full of water before heat settings are used.
IMPORTANT: Turn the Temperature control knob anticlockwise until the valve is fully open before
switching on the unit.
This will ensure a fast fill up of the unit when the shower is first switched on.

IMPORTANT
GENERAL ADVICE TO SHOWER UNIT USERS
• Shower Installation must be carried out by a
suitably qualified person and conform with IEE
Regulations and comply with water regulations,
building regulations or any specific local water
company regulations and should be in accordance
with BS EN 806.
• Your Aquas Reva electric shower should always be
mounted on the finished wall surface (usually tiled ).
Under no circumstances must you tile up to or seal
around the unit as this may prevent air circulation and
any possible condensation escaping.
• This shower unit is designed to be connected to a
direct cold water mains supply without draw offs that
also feed other appliances or taps as this will impair
performance. A direct connection from a tank supply
with Pump is NOT recommended.
• The shower unit must not be fitted where it may be
exposed to frost, for example in an outdoor area. The
shower must not be used if suspected of being frozen.
Frost damage is not covered by the guarantee.
• To make sure of activating the heating elements,
the shower must be connected to a mains water
supply with a minimum running pressure of 100kPa
(15 lb/sq in) - (1 Bar) at a minimum flow rate of 8
litres per minute. The maximum static pressure
must be no greater than 500kPa
(75 lb/sq in)-(5.0 Bar).
• All plumbing connections must be completed before
making the electrical connections.
• Always switch off at the isolating switch when not in
use.
The flow rate of water passing through the shower
unit determines the water temperature. The lower
the fow the warmer the water, the higher the fow
the cooler the water.
The temperature produced by the shower unit will
vary between seasons on any one setting of the
temperature control. This is due to variance in the
temperature of the water supply, which becomes
cooler in winter than summer.
The stabiliser valve maintains an almost constant
shower temperature during mains water pressure
changes.
If changes in temperature are experienced in normal
use, it is likely to be caused by water pressure falling
below the minimum level. Falls in water pressure
may be due to water being drawn off at other points
within the building.
The showerhead and filter must be cleaned regularly
to remove scale and debris. If the water becomes hot
and you are unable to obtain cooler water, check the
showerhead, Handshower, shower hose, and filter for
blockage.

BATHROOM
CEILING JOISTS
FLOOR
BATH
SPILL
OVER
LEVEL
HOSE
RETAINING
RING
DOUBLE POLE SWITCH CEILING MOUNTED
GENERAL LAYOUT OF A SHOWER INSTALLATION
A TYPICAL INSTANTANEOUS ELECTRIC
SHOWER INSTALLATION
Plan your own installation carefully. Check on the
nearest and most readily accessible rising mains
water supply, this may be beneath the bath or in
the loft, where it feeds the cold water storage
tank. Use only the cold rising water main supply.
Do not connect the shower unit to the outlet from
the cold water tank.
Avoid connecting the shower unit, if possible,
where it will be affected by water drawn off by
other appliances, e.g. From the mains feed to the
W.C. This may cause a drop in pressure too low
for the shower unit to work correctly.
An isolating valve must be fitted to comply with
water regulations and for servicing purposes.
ISOLATING
STOP TAP
DOUBLE POLE
HEATER SWITCH
WALL MOUNTED
IN ACCORDANCE
WITH LOCAL
AUTHORITY
REGULATIONS
COLD WATER
MAINS SUPPLY
SEPARATE PERMANENTLY
CONNECTED SUPPLY
FROM CONSUMER UNIT
IMPORTANT
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 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.

AQUAS REVA FLEX 9.5 KW
RECOMMENDED INSTALLATION DIMENSIONS FOR ALL MODELS

No.
1A
2
3
3A
4
5
6
7
8
9
10A
10B
10C
11
12
13
14
15
16
17
18
AQUAS CODE
AS02003
AS06003
AS07015
AS07008
AS10004
AS05012
AS05015
AS09002
AS06040
AS03064
AS59090
AS59091
AS59092
AS50003
AS50004
AS50005
AS50006
AS50007
AS50008
AS50009
AS50010
DESCRIPTION
OVERHEAD - SMART 200 - NO AIR
2.5mm SEALING WASHER FOR SHOWER HOSE - PACK 5
TOP CONNECTOR FOR SHOWER ARM
NON ROTATION SHOWER ARM AND HEATER CONNECTOR
FREE FIX WALL BRACKET SET CW FIXINGS
WALL BRACKET PACK FOR SLIDE BAR X 2 ( FREE FIX )
SHOWER TUBE 600 X 25MM WITH END CAPS
FRONT LOADING SLIDER MECHANISM
SMOOTH 1.5M PVC HOSE WITH ABS CONICAL NUTS
HAND SHOWER VENTO 120 3F HANDSHOWER
HEATER COVER COMPLETE WHITE
HEATER COVER COMPLETE BLACK
HEATER COVER COMPLETE CHROME
SCREW FIXATION PACK FOR HEATER
THERMAL CUT OFF DEVICE
DIVERTOR VALVE ASSEMBLY
ELECTRICAL TERMINAL BLOCK
POWER SWITCH ASSEMBLY
GRILLON HEATER TANK ASSEMBLY
VOLUME CONTROL VALVE ASSEMBLY COMPLETE
PRESSURE RELIEF VALVE TUBE
SPARE PART DETAILS FOR AQUAS REVA

AQUAS REVA FLEX 9.5 KW MANUAL WATER HEATERS
3A
1
4
42
9
11
12
11
16
18
17
10
10
14
13
15
5
5
5
4
4
4
2
2
8
6
6
6
7
5
5
5
5
5
2
3

ASSEMBLY OF UPPER SHOWERING COMPONENTS
4
4
4
3A
2
3
4

9
5
5
5
2
8
6
6
6
7
5
5
5
5
5
ASSEMBLY OF LOWER SHOWERING COMPONENTS
1
2

Top fixing position
200 mm.
367 mm.
arrow depict water and
electrical entry points.
PLUMBING CONNECTIONS
POSITIONS:
• SIDE LEFT
• SIDE RIGHT
• BOTTOM LEFT
• BOTTOM RIGHT
• REAR LEFT
• REAR RIGHT
NOTE!
PLUMBING THE
SHOWER UNIT MUST
PROCEED WIRING!
The shower unit can be
both plumbed and
wired from 6 different
A B

PLUMBING CONNECTIONS
The shower unit is supplied for both left
and right hand installation.
To plumb the unit on the left you must
remove the blanking cap and refit it to the
inlet pipe on the right hand side of the unit
ensuring the metal fixing clip is pushed
firmly into the groove.
When leak testing the installation you must
ensure there are no leaks from this area.
Turn off the water supply at the isolating stop
tap. Having determined the direction of the inlet
water supply: It is necessary to remove the
appropriate plastic section from the back plate,
before commencing with the installation.
A for Rear Left - B For Rear Right
We have incorporated into the bottom right &
left hand side of the back plate removable trim
sections to allow easy access when connecting
the water supply.
Connect the mains water supply to the inlet of
the shower unit using a 15mm copper, stainless
or plastic pipe with a 15mm compression elbow
or 15mm push-fit elbow.
Do not use excessive force when making the
connection to the unit.
IMPORTANT
To comply with water regulations, building regulations or any specific local water company regulations and
should be in accordance with BS EN 806. A double check valve must be fitted with all flexible shower
accessories where it is possible that the showerhead may come into contact with used water
i.e. In the bath or shower tray.
IMPORTANT
Before turning on the water supply to the shower unit the water supply pipe should be flushed out to remove
debris. After flushing the pipework ensure that the shower unit is positioned squarely on the wall and tighten
the screws. Tighten all plumbing connections and check the pipework for leaks.

The diagram below shows the route of the cable
into the shower unit for connection to the terminal
blocks, connect as follows:
Earth cable to terminal marked
Neutral cable to terminal marked
Live cable to terminal marked
ELECTRICAL CONNECTIONS
Your Aquas Reva electric shower is provided with both Left and Right electrical connections to ease
installation particularly when replacing an existing unit
NOTE: ONLY ONE SET OF ELECTRICAL CONNECTIONS IS NECESSARY
EXAMPLE - RIGHT SIDE ELECTRICAL CONNECTIONS
The shower unit must be permanently connected
to the electricity supply, direct from the consumer
unit via a double pole linked switch with a
minimum contact gap of 3mm. The switch must
be readily accessible and clearly identifiable and
out of reach of a person using a fixed bath or
shower tray, unless the switch is cord operated.
The wiring must be connected to the switch
without the use of a plug or socket outlet.
The cable size required is determined by the kW
rating of the shower and the distance between
the shower and the consumer unit. The table
below will help you choose the correct cable for
your installation, but it will depend upon the
precise circumstances of the installation. If you
are in any doubt consult an electrician.
The incoming cable should be hidden.
IMPORTANT
Ensure that the terminal block screws are fully tightened and that no cable insulation is trapped under
screws. Ensure the cable clamp is used to secure the cable. The earth continuity conductor of the electrical
installation must be effectively connected to all exposed metal parts of other appliances and services in the
room in which the shower unit is installed to confirm.

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.
NOTE:The elements on UK models are to
240V specification and will give a lower kW
rating if the voltage supply is below 240V.
ELECTRICAL WIRING

FITTING THE FRONT COVER INTO POSITION
DIVERTOR HANDLE ( LOWER HANDLE )
VOLUME CONTROL HANDLE ( UPPER HANDLE )
Make sure that the Divertor spindle and the raised button on the divertor handle are in the
12 O'clock position before fitting the cover.
Turn the stabilizer valve spindle and volume handle fully clockwise until resistance is felt.
Fit cover into position and re-fit cover fixation screws.
Stabilizer valve
Divertor spindle
When fitting the cover, it is important to align the divertor spindle and
volume control spindle inside the heater.
NOTE - Before fitting the cover, ensure that the 2 electrical wires are fitted correctly to the
PC board inside the electric shower.

COMMISSIONING THE SHOWER HEATER
2. Turn on the water
and electricity,
before fitting the front cover.
Push the on/off button,
to check water flow and
if there is any leakage
inside the heater or
at any shower connection.
1. Before installation,
rotate the volume control
handle clockwise until
resistance is felt.
Connect the water
and electricity supply.
IMPORTANT NOTE FOR THE INSTALLER
1
2
IMPORTANT
Tum the Temperature control knob anticlockwise until the valve is fully open before switching on the unit.
This will ensure a fast fill up of the unit when the shower is first switched on.
IMPORTANT
The shower unit must be full of water before heat settings are used.

OPERATING THE SHOWER
1. Switch on electrical supply - pull cord or wall mounted switch.
2. Press the ON / Off Button to start the flow of water.
3. Turn the divertor handle
to select the showering
function you require
Left for Hand-shower
& Right for Overhead.
4. When turning the Volume
Control Handle, this will
change the output
temperature of the water.
5. In the winter months,
the heater should be operated
at full power ( 9.5 KW )
to ensure an adequate amount
of hot water
In the summer months,
the ECO button can be activated
which will reduce the KW output
down to 5.0 KW.
6. To turn off the shower unit,
press the ON / OFF button.
IMPORTANT NOTES
The Higher the flow the temperature will decrease.
The Lower the flow the temperature will increase.
It is recommended that you start the shower with the volume handle in the fully
anti clockwise / cold position as this will provide maximum flow
If a higher outlet temperature is required, Rotate the volume handle in a clockwise direction.
Divertor handle
Hand-shower
Or overhead function
Volume Control Handle
On / Off Button
Winter 9.5 kw and
Summer 5.0 kw Setting
Full power /
Eco power button
Temperature and
Power Setting Indicator
In Winter Mode :
Both Half Circles are Lights up
In Summer Mode :
Only the bottom Half Circle
Lights up

Obstruction with outflow - Shower Hose,
Overhead or hand shower
TROUBLESHOOTING
Symptom Likely Cause/s Action / Remedy
No water flow.
Water temperature
too Insufficient water
flowing hot.
Water isolating valve in off position.
Outlet hose mesh filter blocked.
Power supply not on.
Turn off water supply,
Remove the outlet hose from the shower,
remove mesh filter and clean.
Turn on.
Insufficient water flowing hot.
through the shower.
Clean the outlet nozzles in the
Overhead / Handshower Increase the
flow by adjusting the temperature control
knob to cooler setting.
Reduce the power setting.
Water pressure is at minimum requirement. Check running pressure
(minimum of 1.0 bar).
Wait until pressure increases.
Shower temperature is set too high causing
the hermal cut out to turn off the heating
elements to reduce the water temperature.
Shower temperature
cycles between hot
and cold.
Water from pressure
relief outlet - PRD
activated.
Call supplier for customer service
assistance.
Shower runs hot and
cold during use.
Turn shower temperature control
anti-clockwise to reduce the water
temperature.

2. If scale deposits are stubborn,
Soak the shower-head or hand-shower
in a proprietary Limescale remover and
rinse thoroughly before use.
Your AQUAS Branded heaters are supplied by Aquabella Shower Co.,Ltd. in Thailand.
For information or service assistance , please contact the installer or the local
UK distributor from where the heater was purchased.
Ai0049
1. To break away scale deposit on a daily
basis simply rub your thumb over the surface
whilst the shower is running.
SHOWERHEAD CLEANING INSTRUCTIONS
The showerhead should be cleaned periodically to remove limescale or debris which will
reduce the performance of the shower. The frequency of cleaning will vary according to
local water quality.