Triton Rosato User manual

Rosato Entry Points
H: 327mm
W: 215mm
D: 94mm
Diagram Key:
Dimensions:
Water Entry Points
Cable Entry Points

Please read this book thoroughly and familiarise yourself with all
instructions before commencing installation and keep it for future reference.
The shower installation MUST be carried out by a suitably qualified person, in the
sequence of this instruction book.
Installation and
operating
instructions
INSTALLERS PLEASE NOTE THESE INSTRUCTIONS
ARE TO BE LEFT WITH THE USER
ROSATO
electric shower
2181134B - June 2015

2
Check that the water supply will satisfy requirements .............................................. 1
Check that water & cable entry points of the unit meet requirements ..................... 2
Check that the electric supply will satisfy requirements ............................................ 3
Siting of the shower................................................................................................. 4
Plumbing installation ............................................................................................... 5
Electrical installation ................................................................................................ 6
Fit to the wall & connect the shower supplies.......................................................... 7
Fitting the cover ...................................................................................................... 8
ONLY Commission the shower in the way described............................................ 9
Familiarise yourself with the user operating instructions........................................... 10
1
2
3
4
5
6
7
8
9
10
INTRODUCTION - PLEASE READ
This book contains 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.
PLEASE READ THE GENERAL GUIDANCE NOTES BEFORE PROCEEDING.
Tick off as
you complete
PLEASE USE THE FOLLOWING CHECK LIST TO AID YOUR INSTALLATION
Triton recommend watching the short online *videos that cover electric shower basics before your
installation - *(videos may not show the exact model purchased).
• What is an electric shower?
• Electrical requirements for electric showers
• Plumbing requirements for electric showers
• Kilowatt ratings explained
To view these videos visit: www.tritonshowers.co.uk/triton-products/product-videos.aspx
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Products manufactured by Triton are safe and without risk provided they are installed, used and
maintained in good working order in accordance with our instructions and recommendations.
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.
PLEASE READ THIS IMPORTANT SAFETY INFORMATION

Products manufactured by Triton are safe and without risk provided they are installed, used and
maintained in good working order in accordance with our instructions and recommendations.
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
1 GENERAL
1.1 Isolate the electrical and water supplies before
removing the cover.
1.2 Read all of these instructions and retain them
for later use.
1.3 DO NOT take risks with plumbing or electrical
equipment.
1.4 Isolate electrical and water supplies before
proceeding with the installation.
1.5 The unit must be mounted onto the finished
wall surface (on top of the tiles). DO NOT tile
up to or seal around ANY PART of the unit
using silicone sealer after fixing to the wall.
Special care must be taken NOT TO BLOCK
OR SEAL ANY PRD VENTS ON THE UNIT.
1.6 Contact Customer Service (see back page), if
any of the following occur:
a) If it is intended to operate the shower at
pressures above the maximum or below the
minimum stated.
b) If the unit shows a distinct change in performance.
c) If the shower is frozen.
1.7 If it is intended to operate the shower in areas
of hard water (above 200 ppm temporary
hardness), a scale inhibitor may have to be
fitted. For advice on the Scale Inhibitor,
contact Customer Service.
1.8 The showerhead must be cleaned regularly
with descalent to remove scale and debris,
otherwise restrictions to the flow on the outlet
of the unit will result in higher temperatures
and could also cause the (PRD) Pressure Relief
Device in the unit to operate.
1.9 This product is not suitable for mounting into
steam rooms or steam cubicles.
2 PLUMBING
2.1 The plumbing installation must comply with
Water Regulations, Building Regulations or any
particular regulations as specified by Local
Water Company or Water Undertakers and
should be in accordance with BS EN 806.
2.2 The supply pipe must be flushed to clear debris
before connecting to the shower unit.
2.3 DO NOT solder pipes or fittings within 300mm
of the shower unit, as heat can transfer along
the pipework and damage components.
2.4 DO NOT fit any form of outlet flow control as
the outlet acts as a vent for the heater can.
2.5 DO NOT use excessive force when making
connections to the flexible hose or
showerhead, finger tight is sufficient.
2.6 All plumbing connections must be completed
before making the electrical connections.
2.7 This appliance MUST not be connected to the
inlet supply by a hose-set.
3 ELECTRICAL
3.1 The installation must comply with BS 7671
‘Requirements for electrical installations’ (IEE
wiring regulations), building regulations or any
particular regulations as specified by the local
Electrical Supply Company.
3.2 This appliance MUST be earthed.
3.3 In accordance with ‘The Plugs and Sockets etc.
(Safety) Regulations 1994’, this appliance is
intended to be permanently connected to the
fixed wiring of the electrical mains system.
3.4 Make sure all electrical connections are tight to
prevent overheating.
3.5 A 30mA residual current device (RCD) MUST
be installed in all UK electric and pumped
shower circuits. This may be part of the
consumer unit or a separate unit.
3.6 Switch off immediately at isolating switch if
water ceases to flow during use.
3.7 Other electrical equipment i.e. extractor fans,
pumps must not be connected to the circuits
within the unit.
3.8 Switch off at isolating switch when not in use.
This is a safety procedure recommended with
all electrical appliances.
3.9 As with all electrical appliances it is
recommended to have the shower and
installation checked at least every two years by
a competent electrician to ensure there is no
deterioration due to age and usage.
IMPORTANT - GENERAL GUIDANCE NOTES
WARNING
.
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience or knowledge if they have been
given supervision or instruction concerning use of the appliance
in a safe way and understand the hazards involved. Children may
not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.

GENERAL ADVICE TO USERS
The following points will help you understand
how the shower operates:
a. The electric heating elements operate at a
constant rate at your chosen power setting.
It is the rate of the water passing through
the heater can which determines the water
temperature. (The slower the flow, the hotter
the water becomes; the faster the flow, the
cooler the water).
b. During winter, the mains water supply will be
cooler than in the summer. The flow rate will
vary between seasons at any one temperature
setting. At different times of the year you
may have to adjust the position of the
temperature control to maintain your desired
temperature setting.
c. The stabiliser valve minimises variations in
shower temperature during mains water
pressure changes. If changes in shower
temperature are experienced during normal
use, it will most likely be caused by the
water pressure falling near to or below the
minimum level. The drop in pressure may
be due to water being drawn off at other
points in the house whilst the shower is in
use. If pressure drops appreciably below
the minimum, the heating elements will
automatically cut out.
NOTE: If ever the water becomes too hot and
you cannot obtain cooler water, first check
that the sprayplate in the showerhead has not
become blocked.
DO NOT place items such as soap or shampoo
bottles on top of the unit. Liquid could seep
through the joint between the cover and
backplate.
ADVISORY - CLEANING
It is recommended that all products
are cleaned using warm, soapy water.
DO NOT use abrasive or aggressive
chemical cleaning products as this may
affect the product surface nish and
invalidate your guarantee.
IMPORTANT ADVICE TO USERS
COMISSIONING ADVICE
When first installed the unit will be empty.
It is essential the unit should contain water
before the elements are switched on. It is
vital that the commissioning procedure
is followed. Failure to carry out this
operation will result in damage to the unit
and will invalidate the guarantee.

1
To check the product suitability for commercial and multiple installations, please contact Triton’s
specication advisory service before installation.
Telephone:
Facsimile:
E mail:
024 7637 2222
024 7632 4504
[email protected]
CONTENTS Page
INTRODUCTION
IMPORTANT SAFETY INFORMATION (please read)
Installation check list (please follow & complete)
GENERAL GUIDANCE NOTES
GENERAL ADVICE TO USERS - CLEANING ADVICE
SPECIFICATIONS............................................................................. 2
DIMENSIONS & CABLE/WATER ENTRY POINTS .............................. 3
ELECTRICAL REQUIREMENTS ....................................................... 4 - 5
INSTALLING THE SHOWER................................................. 6 - 14
Siting of the shower ................................................................ 6 - 7
Plumbing installation.................................................................. 8
Electrical installation ................................................................... 9
Fit to the wall & connect shower supplies............................... 9 - 11
Fitting the cover........................................................................ 12
COMMISSIONING PROCEDURE ..................................... 13 - 14
Connecting the PCB cable......................................................... 14
USER OPERATING INSTRUCTIONS..................................... 15 - 17
Operating functions....................................................................... 17
Cleaning the filter - installers & service engineers only ................... 18
Fault finding/Troubleshooting.................................................... 19 - 20
Spare parts .................................................................................... 21
SHOWER CONTROLS - QUICK USER GUIDE ............... Inside rear cover
UK Service Policy/UK Guarantee .............................................. Rear cover

2
SPECIFICATIONS
check list
ELECTRICAL
Nominal power - rating at 240V Nominal power - rating at 230V
9.5kW – (40A MCB rating) 8.7kW – (40A MCB rating)
10.5kW – (45A MCB rating) 9.6kW – (45A MCB rating)
PLUMBING (see page 6 & 7 for water regulations)
Supply Source Mains pressure cold water only
Minimum running pressure and flow to the inlet
of the shower for full performance
100kPa (1.0 bar) at 8 litres per minute for
7.5kW, 8.5kW & 9.5kW
150kPa (1.5 bar) at 11 litres per minute for 10.5kW
Maximum static pressure 1000 kPa (10 bar)
Maximum inlet temperature 28°C
Minimum inlet temperature 2°C
Inlet connection 15mm diameter
Outlet connection ½” BSP male thread
MATERIALS
ABS Backplate, cover, controls, showerhead
Acetal Sprayplate
Minerally insulated corrosion resistant metal
sheathing
Elements
STANDARDS and APPROVALS
Splashproof rating IPX4
Safety Complies with the requirements of current
British and European safety standards for
household and similar electrical appliances
BEAB Complies with requirements of the British
Electrotechnical Approvals Board (BEAB)
CE Meets with Compliance with European
Community Directives (CE)
1
SECTION

3
DIMENSIONS & ENTRY POINTS 2
check list
SECTION
Fig.2
Fig.1
215mm 94mm
327mm
ENTRY POINTS
DIMENSIONS
WATER
Right: Bottom back, Bottom, Bottom side.
Left: None.
CABLE
Right: Middle back, Top.
Left: None.
= Back
= Back
= Others
= Others
PLEASE NOTE: Deviation from the
approved entry points will invalidate
product specifications and warranty.
Rosato
Rosato

4
ELECTRICAL REQUIREMENTS
3check list
SECTION
W-006-A
WARNING!
THIS APPLIANCEMUST BE EARTHED
Meter Incoming
supply
fuse
Meter
tails
Consumer
unit
Pull cord
isolating switch
Shower
unit
Fuse or
MCB
RCD
(can be part of
consumer unit)
80A or 100A
main switch
Table A
MCB
30/32A
32A
40A
40A
40A
40/45A
45A
cartridge
fuse
30A
35A
35A
45A
45A
45A
45A
unit
rating
7.0kW
7.5kW
8.0kW
8.5kW
9.0kW
9.5kW
10.5kW
CIRCUIT PROTECTION
Fig.4Schematic of installation circuit
ELECTRICAL REQUIREMENTS
The installation, supply cable and circuit
protection must conform with BS 7671 (IEE
wiring regulations) and be sufcient for the
amperage required.
The following notes are for guidance only:
1The shower must only be connected to a
230-240V ac supply. If you are installing a
shower with a kilowatt rating above 9kW, it
is advisable to contact the local electricity
supply company.
1.1 The electrical rating of the shower is shown
on the rating label (Fig.3) within the unit.
2Before making any sort of electrical
connection within the installation make
sure that no terminal is live. If in any doubt,
switch off the whole installation at the mains
supply and remove the correct fuse.
3The shower must be connected to its own
independent electrical circuit. IT MUST NOT
be connected toaring main, spur, socket
outlet, lighting circuit or cooker circuit.
3.1 The electrical supply must be adequate for
the loading of the unit and existing circuits.
4Check your consumer unit (main fuse box)
has a main switch rating of 80A or above
and that it has a spare fuse way which will
take the fuse or Miniature Circuit Breaker
(MCB) necessary for the shower (Fig.4).
4.1 If your consumer unit has a rating below
80A or if there is no spare fuse way, then the
installation will not be straightforward and
may require a new consumer unit serving
the house or just the shower.
4.2 You will need to contact the local electricity
company. They will check the supply and
carry out what is necessary.
5 For close circuit protection DO NOT use a
rewireable fuse. Instead use a suitably rated
Miniature Circuit Breaker (MCB) or cartridge
fuse (see Table A).
5.1 A 30mA residual current device (RCD)
MUST be installed in all UK electric and
pumped shower circuits. This may be part of
the consumer unit or a separate unit.
Triton Showers,
Triton Road, Nuneaton,
Warwickshire, CV11 4NR
xxxx
Fig.3

5
3
Continued
SECTION
Table B
Note: Cable selection is dependent on
deratin
g
factors
Twin and earth PVC insulated cable
Current carrying capacity
In conduit
trunking
6mm²
38A
10mm²
52A
16mm²
69A
Installed in an
insulated wall
6mm²
32A
10mm²
43A
16mm²
57A
Clipped direct
or buried in a
non-insulated
wall
6mm²
46A
10mm²
63A
16mm²
85A
6mm210mm216mm2
*The method below may be used by
installers to determine the approximate
size of the incoming cable.
1. Measure the width of an individual strand,
and half that measurment to find (r),
e.g: 1.34mm ÷ 2 = (r) 0.67mm
2. Multiply (r) x (r) x 3.14,
e.g: (r) 0.67 x (r) 0.67 x 3.14 = 1.41mm2
3. Multiply this by the number of wire strands
(usually 7), e.g: 1.41mm2x 7 = 9.87mm2.
4. The number obtained would suggest
10mm2wiring.
*PLEASE NOTE: If unsure, consult a qualified Electrician.
6A 45 amp double pole isolating switch with
a minimum contact gap of 3 mm in both
poles must be incorporated in the circuit.
6.1 It must have a mechanical indicator showing
when the switch is in the OFF position, and
the wiring must be connected to the switch
without the use of a plug or socket outlet.
6.2 The switch must be accessible and clearly
able, but out of reach of a person
u xed bath or shower, except for the
cord of a cord operated switch, and should
be placed so that it is not possible to touch
the switch body while standing in a bath or
shower cubicle. It should be readily accessible
to switch off after using the shower.
7Where shower cubicles are located in any
rooms other than bathrooms, all socket
outlets in those rooms must be protected by
a 30mA RCD.
8The current carrying capacity of the cable
must be at least that of the shower circuit
protection (see Table B).
8.1 To obtain full advantage of the power
provided by the shower, use the shortest
cable route possible from the consumer unit
to the shower.
8.2 It is also necessary to satisfy the disconnection
time and thermal constraints which means
that for any given combination of current
demand, voltage drop and cable size, there is
a maximum permissible circuit length.
9The shower circuit should be separated from
other circuits by at least twice the diameter
of the cable or conduit.
9.1 The current rating will be reduced if the
cabling is bunched with others, surrounded
by thermal loft or wall insulation or placed
in areas where the ambient temperature
is above 30°C. Under these conditions,
derating factors apply and it is necessary to
select a larger cable size.
9.2 In the majority of installations (see
Table B), the cable will unavoidably be
placed in one or more of the above
conditions. This being so, it is strongly
recommended to use a minimum of 10mm
cabling throughout the shower installation.
9.3 In any event, it is essential that individual
site conditions are assessed by a competent
electrician in order to determine the correct
cable size and permissible circuit length.

6
Installation - SITING OF THE SHOWER
SITING OF THE SHOWER
The installation must be in accordance with
Water Regulations/Bylaws - see page 2 for
water specifications
• If it is intended to operate the shower at
pressures above the maximum or below the
minimum stated, contact Customer Service
for advice.
• If the stated flow rates are not available,
it may not be possible to achieve optimum
performance from the unit throughout
the year.
• During periods of high ambient temperatures
it may be necessary to select the economy
power setting to achieve your preferred
shower temperature.
Fig.5 shows a typical system layout.
• Refer to (fig.6) for the correct siting of
the shower. Position the unit where it will
NOT be in direct contact with water from
the showerhead. Position the shower unit
vertically.
• Allow enough room between the ceiling and
the shower to access the cover top screws.
• Mark out entry points and routing of the
water and electric supplies into the shower.
4check list
SECTION
Isolating
stopvalve
Mains
water
supply
Shower
unit Switch may
be wall
mounted
in accordance
with IEE regs.
Mains electric supply
(via double pole switch)
Double
pole
isolating
switch
Separate permanently
connected supply
from consumer unit
Diagrammatic view (not to scale)
Fig.5

7
WARNING
The shower MUST NOT be
positioned where it will be
subjected to freezing conditions.
IMPORTANT: Water regulations (fig.6)
• It is required that the showerhead be
‘constrained by a fixed or sliding attachment
so that it can only discharge water at a point
not less than 25mm above the spill-over level
of the relevant bath, shower tray or other
fixed appliance’.
• If the riser kit is supplied with a ‘soapdish
hose retainer’ or bespoke ‘hose retainer’, it
will in most cases meet this requirement. If
the showerhead can still be placed within a
bath, basin or shower tray within the 25mm
limit, then a double check valve, or similar,
MUST be fitted in the supply pipework
to prevent back-flow.
Pressure relief safety device
• A pressure relief device (PRD) is designed
into the shower unit which complies with
European standards. The PRD provides a level
of appliance protection should an excessive
build up of pressure occur within the shower.
DO NOT operate the shower with a damaged or
kinked shower hose, or a blocked showerhead.
This may cause the PRD to operate.
• When commissioning, the showerhead
must be removed from the flexible hose.
Failure to follow this procedure may cause
the PRD to operate.
• Make sure the shower is positioned over a
bath or shower tray. If the PRD operates,
then water will eject from the bottom of
the unit. Should this happen, turn off the
electricity and water supplies to the shower
at the isolating switch and stopvalve.
Contact Customer Service for advice on
replacing the PRD.
4
Continued
SECTION
IMPORTANT: The unit must be mounted on
a flat surface which covers the full width and
length of the backplate. It is important that
the wall surface is flat otherwise difficulty
may be encountered when fitting the cover
and subsequent operation of the unit may
be impaired.
IMPORTANT: If installing onto a tiled wall,
ALWAYS mount the unit on the surface of
the tiles. NEVER tile up to the unit.
Shower unit
must not
be within
an area
1 metre
from base
Height of
showerhead
and shower
to suit user's
requirement
Spillover
level
Soap dish
retaining
ring
25 mm minimum
Shower unit can
be mounted either
side of riser rail
Outline of bath
or shower tray
*Fig.6 *(diagrammatic view – not to scale)

8
Installation - PLUMBING INSTALLATION
PLUMBING INSTALLATION
Plumbing to be carried out before wiring
• DO NOT use jointing compounds on any
pipe fittings for the installation.
• DO NOT solder fittings near the shower unit
as heat can transfer along the pipework and
damage components.
• Compression fittings MUST be used to
connect to the inlet of the shower (fig.7).
(Push-on fittings must NOT be used as full
engagement cannot be guaranteed).
• If installing a feed pipe from the back or
bottom, the centre of the inlet valve to the
wall surface is 21mm (fig.7).
NOTE: If entry is from the back, the nut of the
compression fitting will be partially behind the
surface of the wall. This area MUST be left clear
when plastering and tiling around the pipework
in order to make the nut accessible for future
adjustments.
NOTE: An additional stopvalve (complying with
Water Regulations) must be fitted in the mains
water supply to the shower as an independent
means of isolating the water supply should
maintenance or servicing be necessary.
IMPORTANT: Before completing the connection
of the water supply to the inlet of the shower, flush
out the pipework to remove all swarf and system
debris. This can be achieved by connecting a hose
to the pipework and turning on the mains water
supply long enough to clear the debris to waste.
IMPORTANT INFORMATION
The outlet of the shower acts as a vent and
must not be connected to anything other
than the hose and showerhead supplied.
5check list
SECTION
21 mm
Fig.7

9
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.
NOTE: Deviations from the designated entry
points will invalidate product approvals. The
cable entry points are listed on page 3.
• Seal around rear entry cable to prevent water
ingress into the wall.
Installation - ELECTRICAL INSTALLATION 6
check list
SECTION
Installation - FIT TO THE WALL & CONNECT THE SHOWER SUPPLIES
FIT TO THE WALL & CONNECT THE
SHOWER SUPPLIES
Pipe/Electrical access points
• If bottom or right surface entry is required
for the mains cold water, then the necessary
opening will need to be cut out in the cover
and the trimplate (fig.8).
• If surface cable entry from the top is required
then a small area will need to be cut out in
the backplate (fig.9).
• If installing a feed pipe from the rear or
bottom, the centre of the inlet valve to the
wall surface is 21mm (fig.7).
7
check list
SECTION
Fig.8
REAR OF
COVER
Trimplate
Remove for
right entry
Remove for
bottom entry
Remove for
right entry
Remove for
bottom entry

10
• Temporarily connect the mains water supply
to the inlet of the shower using a
15mm x 15mm compression fitting.
• Use the backplate as a template making sure
it is level and mark the fixing holes (fig.10).
• Remove the unit from the wall. Drill and plug
the wall. (An appropriate drill bit should be used.
If the wall is plasterboard or a soft building block,
appropriate wall plugs should be fitted).
• Hook the backplate over the top screw and
fit the bottom fixing screws into position. DO
NOT fully tighten the screws at this stage,
as the fixing holes are elongated to allow for
out of square adjustment after the plumbing
connections have been completed.
• Connect the mains water supply to the inlet
DO NOT use excessive force when making
the connection.
• Make sure the backplate is square on the
wall and tighten the retaining screws which
hold it to the wall.
• Turn on the mains water supply and check
for leaks in the pipework connection to the
shower.
NOTE: At this stage no water can flow through
the unit.
IMPORTANT: A suitable sealant should always
be used to seal around the incoming pipework to
prevent water entering the wall.
7Continued
SECTION
WARNING
Check there are no hidden cables or
pipes before drilling holes for wall plugs.
Use great care when using power tools near
water. The use of a residual current device
(RCD) is recommended when
using power tools.
Fig.10
Fig.9

11
• Route the cable into the shower unit for
connection to the terminal block (fig.11)
as follows:
Earth cable to terminal marked
Neutral cable to terminal marked N
Live cable to terminal marked L
• (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.
7
Continued
SECTION
NOTE: The elements on UK models are to
240V specification and will give a lower kW
rating if the voltage supply is below 240V.
Te rminal
block
L N
Fig.11
L
N
E
1
2
3
5
7
6
inlet
outlet
9
9
4
8
10
11
1. Terminal block
2. Earth post
3. Control PCB
4. Power PCB
5. Solenoid Valve
6. Thermal cut-out
(main)
7. Thermal cut-out
(outlet)
8. Connector socket
9. Element
10. Power LED
11. Low Pressure LED
Fig.12

12
Installation - FITTING THE COVER
8check list
SECTION
FITTING THE COVER
Fitting The Cover - valve & knob positions
• Turn the valve spindle clockwise until it stops
(fig.13).
• Fit the trimplate.
• Turn the temperature control on the cover to
the minimum flow position (fig.14).
• Offer the cover to the unit.
• Carefully locate the cover tags into the guide
pockets on the backplate and make sure the
wires are not trapped.
• Guide the cover into position so that the
control spindle locates correctly (minor
adjustment may be necessary to align the
control and spindle).
• Should any difficulty arise, recheck the points
above.
• While applying slight pressure to the front
cover, secure in position with the retaining
screws.
• Fit the flexible hose to the shower outlet
making sure the outlet of the hose is directed
to waste. Check the supplied sealing washer
is in place.
• DO NOT attach the showerhead at this
stage.
PLEASE NOTE
Before normal operation of the shower,
it is essential the following commissioning
procedure is completed correctly.
IMPORTANT
DO NOT connect the 10-way
ribbon cable before the
commissioning procedure
has been completed.
>POM-GF30<
Valve
spindle
Fig.13
Fig.14
Minimum
ow position
WARNING
COVER RETAINING SCREWS
ONLY the SUPPLIED SCREWS should be
used. The use of none supplied screws WILL
invalidate product specications & warranty.

13
COMMISSIONING 9
check list
SECTION
!! IMPORTANT !!
WARNING
Before normal operation of the shower, it
is essential the following commissioning
procedure is completed correctly.
COMMISSIONING PROCEDURE
The first operation of the shower is intended
to flush out any remaining unit debris, and
to make sure the heater unit contains water
before the elements are switched on.
This operation MUST be carried out WITH
the flexible hose screwed to the outlet but
WITHOUT THE SHOWERHEAD ATTACHED.
Make sure the outlet of the flexible hose is
directed to waste.
IMPORTANT: The Temperature control MUST
be turned fully clockwise to the minimum
flow position shown in (fig.15) - Failure to
do this could cause the PRD to operate.
• Turn on the water supply to the shower at
the isolating stop valve.
• Switch on the electricity supply to the shower
at the isolating switch.
• Wait until water starts to flow from the
flexible hose.
• Slowly rotate the temperature control fully
anti-clockwise as in (fig.16).
• It will take about thirty seconds for a smooth
flow of water to be obtained while air and
any debris is being flushed from the shower
• When a smooth flow of water is obtained,
turn the temperature control fully clockwise
and anti-clockwise and back again several
times to release any trapped air from within
the unit.
• Once the flushing out has been completed,
switch off the electricity to the shower at the
isolating switch. The water will cease to flow.
• Unscrew the top and bottom retaining screws
again, and lift the cover from the backplate.
Fig.15
Minimum
ow position
Maximum
ow position
Fig.16

14
CONNECTING THE PCB CABLE
9check list
SECTION
CONNECTING THE PCB CABLE
& REFITTING THE COVER
IMPORTANT: After connecting the PCB cable,
please check the following before retting the
cover:
1. All plumbing connections are watertight.
2. Terminal block screws are fully tightened.
3. Make sure the valve spindel and
temperature control are in the correct
positions - see (fig.13 & 14 on page 12).
• Attached to the display PCB, inside
the cover, is a 10-way ribbon cable.
The ribbon cable connector must be
plugged into the socket located at the
right of the power PCB situated inside
the unit (fig.17).
• The cable connector can only be fitted
into the socket in one way. The ribbon
cable has a coloured edge which is
lowermost when correctly fitted to the
socket.
• Guide the cover into position so that the knob
spindle locates correctly (minor adjustment
may be necessary to align the knob and
spindle). Should any difficulty arise, re check
the points above.
• While applying slight pressure to the cover,
secure in position with the retaining screws.
• Turn the electric supply back on at the
isolating switch. The ‘Power’ indicator will
light.
• Water will NOT flow until the Start/Stop
button is pressed.
• It is recommended that the water and electric
supplies to the shower are turned off while
the riser rail kit is being installed.
• The flexible hose can be left attached to the
shower outlet. Make sure the supplied sealing
washer is fitted.
Fig.17
PCB
cable
(cover)
Coloured
edge
PCB (In shower)

15
Rosato
High/
Economy
Cold
Temperature
control
Maximum Cold Maximum Hot
Start/Stop
button
USER OPERATING INSTRUCTIONS 10
check list
SECTION
OPERATING THE SHOWER - (g.18)
• When the electricity supply to the shower
is switched on at the isolating switch, the
“power” indicator will light.
To start the shower
• Press the START/STOP button and water will
begin to flow.
NOTE: Default start up setting is the HIGH setting.
To stop the shower
• Press the START/STOP button and the
phased shutdown will begin. Water will cease
to flow after a few seconds.
To use the control buttons
• There are two control buttons –
HIGH/ECONOMY and COLD (fig.18).
• The upper button – red symbol is for
switching between the HIGH and ECONOMY
power setting.
• The HIGH setting allows the highest flow
achievable for your preferred temperature.
This setting should normally be regarded as
optimum shower performance throughout the
year.
• The ECONOMY setting uses less energy
when the ambient mains water temperature
is high during hot months.
• The HIGH/ECONOMY button alternates
between the two settings: press the button
once to select the ECONOMY setting, press
the button again to reselect HIGH.
• Temperature adjustment at this setting is via
the temperature control.
• The lower button – blue symbol is for COLD
water only. Adjusting the temperature control
at this setting will only increase or decrease
the flow of the water from the showerhead.
(It will not alter the water temperature.)
IMPORTANT: it will take a few seconds for the tem-
perature to stabilise once changes have been made.
NOTE: If the stated flow rate required for the unit
cannot be met due to low water pressure, it will
be necessary to operate the unit on the Economy
setting during the warmer months because of
flow rate limitations entering the unit.
Fig.18