Aqualisa SIERRA User manual

SIERRA
INSTALLATION AND USER GUIDE
TM
EXPOSED SEQUENTIAL VALVE
WITH ADJUSTABLE KIT

2
GENERAL INFORMATION
This product complies with EN1111.
This product must be fitted in compliance with the UK Water Supply (Fittings)
Regulations. If in doubt please contact your local water authority.
CONTENTS
General Information 2
Tools Required (Tools not supplied) 3
Warranty 3
Before You Start 3
Flow Regulators 5
Installation 5
Fitting the Shower Kit 8
Cartridge Temperature Adjustment 10
Cleaning the Thermostatic Cartridge 11
User Instructions 12
General Cleaning 13
Trouble Shooting 14

3
TOOLS REQUIRED (TOOLS NOT SUPPLIED)
We have taken great care to ensure that this product reaches you in
perfect condition. However should any parts be damaged or missing
please contact your point of purchase. This does not aect your statutory
rights. In addition if you require replacement parts please contact the
Aqualisa customer helpline on 01959 560010 for assistance.
WARRANTY
Aqualisa products are supplied complete with a 1 year guarantee that can
be upgraded by registering this product with Aqualisa.
For details see: www.aqualisa.co.uk/warranty
BEFORE YOU START
This shower should be installed by a competent person in compliance with
current Water Supply Regulations. For further details contact your Local
Water Authority.
a. Identify all components and check pack contents.
b. Turn o water supplies.
c. Suitable full bore isolation valves must be fitted to both supplies in
accordance with current Water Supply Regulations and our terms of
warranty. Valves must be accessible for warranty and servicing.
Before making any pipe connections all supplies MUST be
thoroughly flushed to remove any debris.

4
WATER SUPPLY REQUIREMENTS
Hot Water Maximum: 65˚C Cold Water Minimum: 5˚C
Recommended 60-65˚C Recommended 10-15˚C
Always maintain a 10˚C dierence between hot system temperature and
maximum hot setting of valve.
Operating Pressure Range: Min. 0.1 bar, Max. 5.0 bar
When water pressure is higher than 5 bar a pressure reducing valve (not
supplied) must be fitted before the mixer. A setting of 3 bar is recommended.
This valve is suitable for gravity stored, gravity boosted (pumped),
balanced high pressure and combination boiler systems.
For gravity and gravity pumped systems use 22mm supply pipes and
reduce to 15mm for connection to the shower valve.
Pump Installation: PUMPS MUST NOT BE FITTED DIRECTLY TO A
WATER MAIN. REFER TO PUMP MANUFACTURERS INSTALLATION
GUIDELINES. Ensure there is adequate flow through the pump to activate
the flow switches.
Combination boiler: MUST have a minimum rating of 24kW (80,000 Btu)
and be of the type fitted with a fully modulating gas valve.
N.B. Boiler performance may aect outlet temperature.
Operating pressures: Hot and cold supplies should be kept as even as
possible in order to ensure the maximum eciency of the mixer.

5
FLOW REGULATORS
This product is supplied with factory fitted flow regulators to maximise the
temperature stability.
Flow regulators are factory fitted to the inlet connections of the valve body;
these can be removed by unscrewing the inlet elbows from the valve body.
Recommendations:
Mains fed/high pressure systems (e.g. combination boiler, unvented
(balanced) systems and gravity boosted (pumped) - leave fitted.
Gravity stored systems - recommend removing.
Inlet elbow
7lpm Cold flow
regulator (green)
5lpm Hot
flow regulator
(yellow)
Locking nut
Locking nut
INSTALLATION
This product is suitable for concealed, falling and rising inlet supply pipes.
1
Ensuring adequate provision to allow the water to discharge
safely to waste, turn on the supplies to flush the system through.
Attach pressure test equipment and pressure test the system in
accordance with Water Supply Regulations.
N.B. Turn o the water supply following system flushing.

6
2
Construct suitable 15mm inlet supplies at level 150mm centres.
Ensure the pipework protrudes a minimum of 100mm, measured
from the intended finished wall surface.
Valve body
Grub screws
Fixing nuts
Wall screws
Hexagonal
key
Wall plugs
Elbow cover plates
Mounting bracket
Filtered washers
Elbows
Control lever
Control handle
Copper olives
N.B. The inlet elbows are supplied at factory set 150mm centres. If
required, the inlet centres can be adjusted by winding the elbows
into the body to reduce the inlet centres, or out to increase the
inlet centres.
3
Once the wall surface has been finished, flush through the pipe
work prior to trimming the length of the pipes to 18mm, measured
from the finished wall surface.
N.B. We recommend using a rotary type cutter but if a hacksaw is
used, ensure the cut is straight and the pipe ends must be carefully
deburred and chamfered.
N.B. If plastic pipe is used, tube inserts must be fitted and must
not increase the diameter or extend the cut o length by more
than 2mm.
Inlet water supplies
As viewed from front on:
Left = HOT
Right = COLD
Pipe centres: 150± 1mm
Adjustable: 145 - 155mm
Pipe tails: 18mm
From finished surface

7
4
Place valve body against the wall
with elbows over the pipe tails
and mark around the base where
it sits on the wall. Remove valve
body, place mounting bracket
in centre of the outlined valve
position* and mark points for
fixing holes.
*Valve position
outline
5
Important - Use appropriate fixings suitable for wall type/
construction. Drill holes to suit required fixings (Use wall plugs
supplied if suitable).
6
Secure mounting bracket to the wall using the wall screws supplied
(if suitable).
7
Fit the elbow cover plates, fixing nuts and copper olives over
the pipe tails and insert the filtered washers into the elbows of
the valve.
8
Making sure the outlet is at the bottom and that the elbows
align with the pipe tails, push the valve body onto the mounting
bracket, and secure with the two grub screws using the 2.5mm
hexagonal key (supplied).
Securely tighten the nuts of the elbows using a suitable spanner.
9
Fit the lever to the control handle.
10
Turn on water supplies and check for leaks.

8
Fitting the Shower Kit - Rail Assembly
ADJUSTABLE SHOWER KIT NO. DESCRIPTION QTY
3
9
10
4
4
12
2
11
1
1
6
5
7
8
1 Wall Plug 2
2 Upper Rail Bracket 1
3 Short Wall Screw 1
4 End Cap 2
5 Handset Holder 1
6 Handset 1
7 Riser Rail 1
8Soap Dish 1
9Shower Hose - 1.5m 1
10 Hose Restraint 1
11 Lower Rail Bracket 1
12 Long Wall Screw 1
1
The top bracket is a floating bracket and can be positioned to suit
existing screw holes (if required).
Prepare two fixing points, using the fixings provided (if suitable).
N.B. The maximum distance between fixing points is 620mm.

9
2
Fit the hose restraint to the rail followed by the soap dish and
handset holder. The handset holder button must be depressed
whilst fitting. The button must be to the left of the rail, and the
holder to the right.
3
Secure the upper rail bracket into position on the finished wall
surface using the short wall screw.
4
Attach the lower rail bracket onto the bottom of the rail.
5
Slide the rail assembly up through the upper rail bracket.
6
Align the small hole in the rail with
the lower rail bracket. Secure the
lower rail bracket to the wall, using
the long wall screw.
7
Place the end caps into the upper and lower rail brackets and push
firmly into position.
8
Ensuring the hose washer is in the correct position; attach the
non-conical end of the hose to the valve body. Run the shower for
a few seconds to clear any debris that may be present.
9
Pass the conical end of the shower hose through the hose restraint.
10
Ensuring the hose washer is in the correct position; attach the
conical end of the hose to the shower head, then place the hose in
the handset holder.

10
CARTRIDGE TEMPERATURE ADJUSTMENT
This product has been factory set under balanced pressures, and a hot
water supply of 65°C.
N.B. This product can reach temperatures in excess of 50°C.
If site conditions vary significantly from the factory conditions, it may be
necessary to adjust the maximum temperature setting of the shower.
In this case, you can adjust the cartridge to change the outlet water
temperature to suit your requirements. This can be adjusted whilst using a
digital thermometer and following the below instructions.
1. Carefully remove the control handle cover cap by inserting a small flat
bladed screwdriver into the slot (located at the 6 o'clock position) and
levering out.
2. Turn the temperature handle to the maximum hot position
(flow will commence).
3. Whilst measuring the temperature of the water, insert a 2.5mm hexagonal
key (supplied) into the centre of the cartridge.
4. To change the maximum temperature setting, turn the hexagonal key
slowly allowing sucient time for the temperature to stabilise.
Increase the temperature by turning anticlockwise.
Decrease the temperature by turning clockwise.
N.B. We recommend a maximum temperature setting of 48°C.
5. Once the desired temperature is achieved, turn the shower o.
6. Refit the cover cap by pressing into position.
Hexagonal key
Temperature adjustment
Cap

11
CLEANING THE THERMOSTATIC
CARTRIDGE
See image page 12.
1. Before carrying out any maintenance, ensure the water supplies are
isolated. Once isolated, turn the shower on to release internal pressure.
If unsure contact a qualified tradesman.
2. Carefully remove the control handle cover cap by inserting a small flat
bladed screwdriver into the slot (located at the 6 o'clock position) and
levering out.
3. Using a 10mm hexagonal key, undo the brass retaining nut and remove the
control handle.
4. Remove the large brass locking nut using a suitable spanner.
5. Pull forward and remove the brass temperature limiter ring.
6. Prior to removing the cartridge, take note of its orientation as it must be
refitted the same way. We suggest making a mark at the 12 o'clock position
on the cartridge assembly.
7. For ease of removal, temporarily refit the control handle and pull the
cartridge free from the valve body . Rinse the cartridge under cold water
to remove any debris or limescale build up.
8. If necessary, replace the cartridge. A replacement cartridge can be
obtained by contacting customer service on 01959 560010.
9. Refit the cartridge into the valve body by lining up the two keyways
(located at 3 and 9 o'clock) and ensuring the positioning mark (made in
point 6) is at the 12 o'clock position.
10. Insert the temperature limiter ring by lining up the two keyways, and
ensuring the raised tab is at the 8 o'clock position.
11. Refit and tighten the large locking nut and place the control handle
back into position (lever at the 6 o'clock position), followed by the brass
retaining nut.
12. Fit the cover cap by pressing into position.
13. Reinstate the water supply and ensure there are no leaks.

12
Locking nut
Temperature limiter ring
Retaining nut
Thermostatic cartridge
Valve body
Cap
Control handle
USER INSTRUCTIONS
Shower valve
The valve and fixings MUST NOT be used as a grab rail or means
of support.
To turn the shower on rotate the lever anticlockwise until the desired
temperature is achieved.
For cooler temperature - rotate clockwise.
For warmer temperature -rotate anticlockwise
N.B. With all Sierra™ shower valves fitted to combination boiler systems,
it may be necessary to adjust the control lever and reduce the flow to
achieve a comfortable showering temperature.

13
Shower head and rail system
NEVER ATTEMPT TO MAKE ANY ADJUSTMENT TO THE SHOWER HEAD BY
PULLING ON THE SHOWER HOSE.
1. To select the preferred height for the shower head, depress the handset
holder button to enable the slider to be moved up or down the rail.
2. Angular adjustment is made by carefully but firmly pulling forwards or
pushing back the shower head towards the wall.
N.B. The tension of the handset holder can be adjusted with a screwdriver.
Inlet filters
The product is protected by inlet filter washers located in the inlet
elbow connections.
GENERAL CLEANING
Whilst modern plating techniques are used in the manufacture of these
fittings, the plating will wear if not cleaned properly. The safest way
to clean your product is to wipe with a soft damp cloth. Stains can be
removed using washing up liquid.
DO NOT USE ABRASIVE CLEANERS.
Limescale
Rub the nozzles of the shower head to break down scale build up. Should
chemical descaling of the head become necessary, remove the shower
head fully and immerse in a mild proprietary descaler.
IT IS IMPERATIVE THAT DESCALING IS CARRIED OUT STRICTLY
IN ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.
SUBSTANCES THAT ARE NOT SUITABLE FOR PLASTICS AND
ELECTROPLATED SURFACES MUST NOT BE USED.

14
TROUBLE SHOOTING
Symptom Possible Cause Remedy
Water leaking
from shower
head.
This is normal for a short time after
turning o.
Adjust angle of shower head
in holder as necessary to vary
draining time. Clean shower head.
Shower flow valve failing to close
fully, possibly due to water borne
debris.
Remove cartridge and check.
See page 11 before dismantling
shower valve.
Maximum water
temperature too
hot or cold.
Maximum water temperature set
incorrectly.
Reset maximum water temperature.
See page 10.
Only hot or cold
water from the
shower valve
outlet.
Partially closed stop or service valve
in water supply pipework to the
shower valve.
Open stop or service valve.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Inlet water supplies are reversed
(hot to cold supply).
Check the connections are the
correct way round. Hot on the left
and cold on the right when viewed
from the front. Rework pipework as
necessary.
Handset holder
tight/loose.
Requires adjustment. Use cross head screwdriver in
handset holder to adjust.
Control dial sti
to operate.
Debris/Scale build up. See page 11.
No flow or low
flow rate and/
or varying
temperatures.
Check shower head, hose and filters
for any blockages.
Clean as necessary. See page 13.
Partially closed stop or service valve
in water supply pipework to the
shower valve.
Open stop or service valve.
Instantaneous water heater cycles
on and o as the flow rate or
pressure is too low.
Increase water flow rate or pressure
through system. Contact the boiler
manufacturer.
Head of water is below the minimum
distance required or insucient to
activate pump (gravity supply only).
Raise the cistern or fit a universal
booster pump. Refer to pump
manufacturers guidelines.
Inlet filter is partially blocked. Clean or replace, flush through
pipework before refitting.
Hot or cold water being drawn o
elsewhere causing pressure changes
or instantaneous boiler temperature
changes.
Do not use other water outlets when
using the shower.
Make sure the maintained inlet
pressures are nominally balanced
and sucient.
See Water Supply Requirements
page 4.
Airlock or partial blockage of the
pipework (gravity supply only).
Flush through pipework to ensure
removal of debris and any airlocks.
No hot or cold water reaching the
shower valve.
Check hot and cold feeds (the valve
will shut down if either the hot or
cold supply fails).

15
Symptom Possible Cause Remedy
Outlet water
temperature too
hot/cold.
Inlet filter is partially blocked. Check inlet filters for any blockages
and clean as necessary.
Installation conditions outside
operating parameters.
See Water Supply Requirements
page 4. Refer to Cleaning the
Thermostatic Cartridge section
see page 11. Refer to Cartridge
Temperature Adjustment see
page 10.
Hot water temperature is less than
10°c above the required blend
temperature.
Adjust hot water temperature or
wait for water to reheat if stored
system is used.
Instantaneous water heater not
igniting because water flow rate is
too low.
Increase water flow rate through
the system. Check inlet filters
and cartridge - clean or replace.
See page 11. Contact the boiler
manufacturer.

Aqualisa Products Limited
The Flyers Way
Westerham Kent TN16 1DE
Customer Helpline: 01959 560010 | Brochure Hotline: [phone]
Website: www.aqualisa.co.uk | Email: [email protected]o.uk
Warranty: www.aqualisa.co.uk/warranty
Republic of Ireland
Sales enquiries: 01-864-3363
Service enquiries: 01-844-3212
Part No: 704452 Issue 01 Aug 19
Please note that calls may be recorded for
training and quality purposes.
The company reserves the right to alter, change
or modify the product specifications without
prior warning.
™ Trademark of Aqualisa Products Limited.