kelda 91017100 Guide

This shower must be used with compatible TMV2 shower mixer/valve or timed flow control valve
Rear Access Void Shower
Important:
This product manual is the property of the customer and must be retained for maintenance and operational purposes.
SKU 91017100 shown on front cover.
Installation Manual and
User Guide
Flex Head - Rear Void TMV2 Thermostatic 91017100
Flex Head - Rear Void TMV2 Thermostatic 91020100
Flex Head - Rear Void TMV2 Thermostatic 91021100
Nov 2023Part No. 24017
1

Table of Contents
SYSTEM DESCRIPTION
Flex Shower Head - 12 Nozzle - 91017100
Directional 12 nozzle shower head mounted onto service
void wall with Chrome finish (Other finishes available on
request). Rear service void mounted Control Hub with
optional air recirculation.
FLOW VOLUME REGULATION
Flow volume (l/m) is controlled via a flow regulator.
The last digit of the product code will designate the flow
regulator pre-fitted, for example:
91017104 : Flex Head - Rear Void Shower - 4 l/m
91017105 : Flex Head - Rear Void Shower - 5 l/m
91017106 : Flex Head - Rear Void Shower - 6 l/m
Important Safety Information
Description
System Diagram
Specifications
Siting the Shower
Installation
1. Control Hub
2. Shower Head (Flex)
3. Hose Installation
Electrical Installation
Factory Settings
Troubleshooting
Operation
Maintenance/Cleaning
Spare Parts
Customer Care
Installation Templates
3 -
4 -
5 -
6 -
7 -
8 -
8 -
9 -
10 -
11 -
12 -
14 -
14 -
15 -
17 -
18 -
19 -
2

Important Safety Information
This product requires hot and cold water supply plus an
electrical connection (see “Electrical Installation” on page
11 for details). This product is not an electric shower.
Products manufactured by Kelda Showers are safe
and without risk provided they are installed, used and
maintained in good working order in accordance with
instructions and recommendations.
IMPORTANT! DO NOT operate the unit if the shower
head becomes damaged.
IMPORTANT! DO NOT restrict flow out of shower by
placing an obstruction in front of the shower head
nozzles.
GENERAL
1. Read all of these instructions and retain them for
later use.
2. DO NOT take risks with plumbing or electrical
equipment
3. Isolate electrical and water supplies before
proceeding with the installation.
4. The shower head must be cleaned regularly
with descalant to remove scale and debris.
The Air hoses must be cleaned periodically to
maintain performance and hygiene. PLEASE SEE
MAINTENANCE SECTION.
5. This product is not suitable for mounting into steam
rooms or steam cubicles.
6. The shower should not be installed in an outdoor
environment, including sheltered areas.
PLUMBING
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 (Specifications for installations inside
buildings conveying water for human consumption.
Operation and maintenance).
2. IMPORTANT! The hot and cold water supply
pipes must be flushed to clear debris from before
connecting to water inlets on shower.
3. DO NOT solder pipes or fittings within 300mm of
the supplied hoses, as heat can transfer along the
pipework and damage components.
4. DO NOT use excessive force when making
connections to the flexible hose, solenoid or mixer.
5. All plumbing connections must be completed before
making the electrical connections.
6. Kelda products are designed to operate between
1 bar (0.1 MPa) and 5 bar (0.5 MPa). If you wish to
operate outside of this please discuss with a Kelda
Engineer.
ELECTRICAL
1. The installation must comply with BS 7671
‘Requirements for electrical installations’ (IET wiring
regulations), building regulations or any particular
regulations as specified by the local electrical supply
company.
2. 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. Make sure all electrical connections are tight to
prevent overheating.
4. A 32A 30 mA Residual Current Circuit Breaker
Operator (RCBO) with over current protection MUST
be installed in all UK electric and pumped shower
circuits. This may be part of the consumer unit or a
separate unit.
5. Each shower must be connected to a 3A switched
fused spur which is easily accessible. Switch off
at fused spur for maintenance or if not in use
for extended periods. This is a safety procedure
recommended with all electrical appliances.
6. Make sure all electrical connections are tight to
prevent overheating.
7. 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.
3

Description
Fan speed: UP/DWN
Timer settings: UP/DWN
Backplate Casing
Air Inlet
24V Power Supply Cable
Blower
Power In Terminal
Main PCB
Air Outlet
Flow Sensor Cable
Front Cover
Four Lid Clips
Control Hub
4

System Diagram
Low voltage 24V
electrical link
3
Air supply from Control
Hub to shower head via
hose supplied
Blended supply
water from mixer
to shower head via
flow sensor
Flex Shower head
12 Nozzle
1
Control
Hub P23
2
Flow sensor
(Flex Head - 91017100)
Air inlet hose length
100mm if re-circulation
is not chosen
100-240V Mains electricity
supply via the OWA
60W-24V AC Transformer
(supplied)
Shower control
Mixer/Valve
Household water feed
pipes to Mixer/Valve
32A 30mA RCBO
Cubicle Area
Rear Void Area
Flex Head - 91017100
5

Flex Head 91017100
You should have the following assemblies within your Flex head order:
Flex Shower Head
2Hoses
3Control Hub
• x1 Bright chrome Directional
shower head
• Flow sensor assembly
• x1 Fixing Kit:
x2 Fixing back nuts
x4 Screws
x4 Wall plugs
x1 Pipe spacer
• x1 Air supply hose
• x1 Air inlet hose
• x4 Jubilee Clips
• x1 90 degree elbow 19mm
• x1 3/4 Inch Air nut
Specifications
• x1 Control Hub
• x4 Screws
• x4 Wall plugs
• x1 OWA 60W-24V Power
Supply
x4
1
103mm 127mm
300mm
1500mm
High Voltage
Low Voltage
77mm 174mm
267mm
1000mm
100mm
6

Siting the Shower
Flex Head 91017100
Tools needed for the job
Warning!
!
• The Control Hub should not be installed in an outdoor environment, including sheltered areas.
• Do not install the power supply directly beneath the water inlet.
• When the Control Hub is installed, the RCBO switch must be within easy reach.
• Do not use extensions or multiple sockets
• The power supply cable must never be bent or dangerously compressed
• Only use the supplied power supply.
• Two people are required for installation
• Siting of shower based on user and water inlet requirements
Installation should be completed to suit the user’s requirements,
with Flex Head being situated within reach of user.
M3 Pozi Screw-
driver
Pencil Drill with Drillbit for
Screw Sockets
Wrench
7

Installation
Control Hub
Prepare Control Hub for wall mounting. Ensure Hub Clips are all
functional and screw holes are clear.
1
Select the position for the Control Hub referring to the “Siting the
Shower” figure on page 7.
Locate the four screw holes and mark onto wall being drilled.
2
Cover the Control Hub with its lid and secure the fastening clips.
Drill the holes for the screws to go into the wall. Screw them
into place with the Control Hub mounted on the wall using a
screwdriver.
3 4
Remember!
Only use the power supply and electrical connections provided.
Always check for hidden pipes + cables before drilling.
STEP 1
STEP 2
!
Ensure the electrical installations on page 11 are completed and
power is being supplied to the Control Hub PCB, indicated by the
LEDs being lit.
8

Using the provided template in this booklet, mark the position
for the shower head on the cubicle wall and drill the hole making
sure the hole saw is the correct size.
Position shower head onto cubicle wall inserting pipe stubs
through the wall into the holes of the spacer, being careful not to
damage the pipe threads.
Place the pipe spacer onto the void wall and secure using the
screws supplied. Make sure the spacer is centered by using the
viewing windows in the spacer.
Remember!
Read through all instructions before beginning installation.
Always check for hidden pipes + cables before drilling.
Secure using the correct flange nuts supplied making sure not to
over-tighten.
1 2
3 4
!
Flex Head Installation
STEP 1
STEP 2
76mm
42.7mm
49.6mm
6.85mm
Ø25mm
Ø33mm
Ø33mm
LEFT
VERTICAL
RIGHT
Place against wall in shower cubicle
LEFT
VERTICAL
RIGHT
TOP
TOP
Place against wall in shower cubicle
9

Remember!
Before connecting hoses flush water inlet pipes with roughly 12 litres worth of water to reduce
risk of blockage from debris in pipes.
Attach air supply hose to the outlet air adapter on the Control
Hub. Tighten using a jubilee clip (supplied) with a screwdriver.
Attach air inlet hose to the inlet air adapter on the Control Hub.
Tighten using a jubilee clip (supplied) with a screwdriver. Ensure
hose connections are airtight. This can be done when first
running the shower.
Use the elbow connector and jubilee clip to connect the air outlet
hose to the shower head backplate. If air recirculation is suitable,
attach air return hose with remaining two jubilee clips.
1 2
3 4
!
Attach the remote flow sensor assembly to the water inlet pipe
by push fit, ensuring the water pipe is isolated first. IRN R008: The
flow sensor is to be installed where light is excluded.
Attach the remote flow sensor assembly to the water inlet in the
rear of the shower head backplate.
Flex Head Installation
10

Electrical Installation
This shower requires a 230-240 VAC, 47 ~ 63Hz single phase supply. A single 3 Amp switched fused spur should be used
for each Panel. Up to 12 Kelda showers can run from a single 32A 30mA RCBO.
Before connecting to power supply, make sure that the mains terminal is able to sustain 240V and 3A. All electrical instal-
lation to be carried out by an approved electrician in accordance with Part “P” U.K. Building Regulations and to the latest
IEEE standards, or the appropriate regulations in the country of installation.
~~
~~~~
~~
~~
~~~~
~~
32A 30mA RCBO
(Up to 12 Showers)
3A Switched Fused Spur
AC 100-240V to DC 24V
Transformer 60W (Sup-
plied)
Kelda Control Hub
1. Thread the power supply cable through the 16mm cable
gland in the bottom left of the Control Hub.
2. Connect the cable to the 24V power terminal shown.
(Polarity of connections is not important)
3. Using a 3mm flat screwdriver, tighten the connections
down and tighten gland nut onto cable
Main Distribution Board
230-240V AC
Electrical Connection
11

Warning!
Factory Settings
Air Volume
Your Kelda panel shower will have a different fan speed setting depending on what shower head and water flow rate your
product has. This will be set at the factory.
The hub will automatically adjust fan speed to match minor changes in flow rate which may result from changes in
water pressure.
However the fan speed can be manually changed if for example the flow regulator is changed to a different value or for
other site specific reasons.
Changing the Fan Speed (6 settings)
1. The panel fan settings are pre-set by the factory.
2. To change the fan speed settings, press ‘FAN’ button once. (There are 6 speed settings: 1-6)
3. To display current fan speed set, press and hold ‘FAN’ button for 2 seconds. The number of LED flashes corresponds
to the speed setting selected.
Speed up/down button
Hold for 2 seconds for
Current Set Speed Set-
ting in Flashes
Fan Mode LPM
Dynamic 1 4-6
Dynamic 2 4-6
Dynamic 3 4-6
Static 4 4
Static 5 5
Static 6 6
1. Factory setting is Fan Mode 3 for all TMV Variants
2. Fan Modes 1 and 2 can be used to fine tune perfor-
mance if necessary
3. If changed, the new Fan Mode remains as default,
even after the power has been cycled.
Dynamic = Flow Sensor Present (93007100, 93008100,
93009100, 93010100)
Static = Time Flow variants (Solenoid Operated)
(93011100, 93003100, 93004100)
Fan Mode Settings
12

Air Overrun Function
The system has an air overrun function which allows the air to continue to operate for approximately 1 second after the
water flow stops. This function purges the water from the shower head, reducing the build up of lime-scale.
Fan Overheat Protection
Fan Test Function
Press and hold ‘TMR’ button for more than 5 seconds to run the fan independently of full shower operation.
In the unlikely event of the fan overheating from being jammed with debris or being continuously run in a hot environment,
then a protection mode will be triggered. The fan will return to normal operation once debris is cleared or temperature
has reduced to sufficient level.
Factory Settings
13

Operation
1. Turn on the water isolation valve.
2. Turn on the electricity supply.
3. Check the Control Hub for power. (The LEDs inside the Hub should be illuminated).
4. The Kelda Showers system operates by detecting water flow. It starts when water flow is detected and stops when
the water flow ceases.
5. Open the shower mixer/valve. Water should start to flow from the shower head, followed very quickly by the air flow.
Once the water valve times out, the water will cease to flow and the air will continue to operate briefly. This purges
water from the shower head.
Congratulations, you’re now ready to experience the greenest shower in the world and start saving water and
energy costs!
Troubleshooting
Symptom Likely cause Action/Remedy
System does not operate fully
(reduced or no water flow):
Hot or cold water supply isolation valve
closed
Check and open valve
Debris has caused blockage in mixer Isolate mixer and service strainers and
cartridge see mixer instructions to service
Pressure difference between hot and
cold supplies is too high
Adjust screws on mixer to balance. Or fit
pressure reducer on high pressure supply.
Shower mixer/valve not functioning. Check valve, replace if necessary.
Water flows from shower head
but no air:
Does the fan run? if so check seal of air hose connections
and that hose is kink free.
Is the LED on the front of the Control
Hub illuminated?
If no check electricity supply
Conduct hard reset by switching off
electrical supply and waiting 10 seconds
before turning on.
Debris in fan Clear any debris from fan and follow Fan
Test Function p.12.
If fan runs then check flow sensor is not
jammed or faulty.
Temperature fluctuating: Thermostatic control/Boiler issue. Check thermostatic mixer valve/boiler for
an issue, call a specialist if necessary.
Poor/no water flow: Blocked water filter/strainer. Isolate water supply and service strainers
in mixer or group mixer.
Water flow too strong: Flow restrictor not installed. Check if the flow restrictor is properly
installed (in the back of the head).
14

Kelda Showers products are precision-engineered and should give continued superior and safe performance, provided:
1. They are installed, commissioned, operated and maintained in accordance with this installation guide.
2. Periodic attention is given as necessary to maintain the product in good functional order.
Guidelines for frequency are given below. Maintenance must be carried out in accordance with these instructions, and
must be conducted by designated, qualified and competent personnel. Components are precision-made, so care must
be taken during maintenance to avoid damage.
Daily/Weekly Hygiene
External surfaces of the shower head may be wiped clean with a soft cloth and if necessary, a mild detergent or soap
solution can be used.
Quarterly Hygiene*
Shower heads to be dismantled to clean, de-scale and sanitise removable parts, heads and inserts.
Please see instructions for dismantling and reassembling head for cleaning.
*If showers are in a high usage area or where the water feed to showers has high hardness levels this will be required
more frequently.
Bi-Annual Visual & Hygiene
Check internal component condition of the shower head and hoses. Inspect for debris, scale deposition, deformation,
damage, etc. Maintain or renew if necessary. Please see Instructions for cleaning and disinfection of air hose and Control
Hub
Maintenance
1. Remove the fascia plate screw cap with a small flat head screwdriver (1)
2. Remove centre screw using a pozidriv PZ2 ensuring the fascia plate (2) and atomisation engine (3) are held until
screw removed.
3. Slowly lower fascia plate and atomisation engine.
4. Carefully detach the rubber hose from the water chamber (4) ensuring not to remove the hose from the other end.
5. Carry out clean, de-scale and sanitisation of shower head components in line with our maintenance guidelines.
6. To reassemble, follow steps in reverse.
Instructions for Dismantling and Reassembling Head for Cleaning
2.
3.
4.
5.
Flex Head
81003100
15

Cleaning and Disinfection of Air Hoses
• Isolate power supply to Control Hub.
• Remove air supply hose by loosening jubilee clip and gently easing hose off the air outlet adapter.
• Remove 90 degrees elbow connector by unscrewing ¾” Air nut and loosening the jubilee clip and gently
pulling apart.
• Remove air return hose by loosening jubilee clips and gently easing hose off the air inlet adapter and
backplate vent.
• Put aside all hose clips in a safe place.
• Whilst wearing the correct safety equipment, dip hoses into a disinfectant solution so all the hoses are
submerged.
• Remove from solution and clean out hoses using a pipe cleaning brush.
• Dip hoses into disinfectant solution and flush through, continue this until hoses are clean.
• Once hoses are clean, flush hoses through with fresh water.
• Shake out any excess water and wipe dry.
• Replace air supply hose by gently inserting into air outlet adapter and tightening jubilee clip.
• Replace 90 degrees elbow connector by gently inserting into hose, screwing ¾” Air nut onto shower head hose
pipes and tightening jubilee clip.
• Repeat steps for air return hose in reverse for air recirculation installations.
• Reinstate power supply to Control Hub.
• Run shower for 2-3 minutes to dry any moisture in the hoses.
Warning!
!During regular cleaning of the shower area, do not direct a water hose at the shower head while the
shower is functioning. Many household and industrial cleaning products contain mild abrasives and
chemical concentrates and should not be used on this product.
Maintenance
16

Spare Parts
No. Part No. Description Parts List
179109 P23 Control Hub replacement front cover Front cover
260010, 79054,
79076, 79108,
79110
P23 Control Hub replacement complete
unit
PCB, Fan Duct, Backplate Casing, Lid Clips
335017 19mm 1000mm Air hose 19mm 1000mm Air Hose
432008/32009 TMV2 Mixer Valve TMV2 Mixer Valve
581003100 Flex AV Shower Head Shower Head, Face Plate, Nozzles, Fixing Parts
17

Warning!
• The Control Hub should not be installed in an outdoor environment,
including sheltered areas,
• When the control box module is installed, the mains socket must be within easy reach
• Do not use extensions or multiple sockets
• The power supply cable must never be bent or dangerously compressed
• Only the supplied power supply should be used with the product.
Customer Care
Guarantee
Kelda Showers guarantees this product against any
defect in materials or workmanship for the period of two
years from the date of purchase. To be covered by this
guarantee, service work must only be undertaken by
Kelda Showers or by its approved agents.
Not Covered by this Guarantee
Damage or defects arising from incorrect installation,
improper use or failure to maintain in accordance with the
instructions in this product manual, including the build-up
of limescale. Defects or damage if the product is taken
apart, repaired or modified by a person not authorised by
Kelda Showers or by their approved agents.
After-Sales Service
Our fully trained staff are ready to provide assistance,
should you experience any difficulty operating your
Kelda Showers equipment.
Spare Parts
All functional parts of Kelda Showers products are
available.
All spares are guaranteed for 12 months from date of
purchase.
Spares that have been supplied directly from us can be
returned within one month from date of purchase,
providing that they are in good order and the packaging is
unopened.
Note: returned spares will be subject to a 15% restocking
charge and authorisation must be obtained from Kelda
Showers before return.
Customer Care Policy
If within a short space of time of installation the product
does not function correctly, first check with the operation
and maintenance advice provided in this installation
guide to see if the difficulty can be overcome. Failing this,
contact your installer to make sure that the product has
been installed and commissioned in full accord with our
detailed installation instructions. If this does not resolve
the difficulty, please contact Kelda Showers, who will give
you every assistance.
!
Patents:
Patents granted and pending:
2454228
9173809
2675568
ZL201280009000.7
4146403
1692638PP/CN
1692638PP/US
1692638P/HK
1875355D/GB
1875355D/CTM
4135905
1714634P/HK
1714634PP/CN
1714634PP/US
2612790
1850858P/PCT
18

UK HEAD OFFICE
Unit 11, Brickfield Trading Estate, Chandler’s Ford, Eastleigh,
SO53 4DR, UK
Tel: [phone]
Web: www.keldashowers.com
DISPOSAL
Do not dispose of with household waste. Please recycle where facilities exist.
Check with your local authority for recycling advice.
Installation Template
Flex & Fixed AV Shower head
91017100 & 91016100
76mm
42.7mm
49.6mm
6.85mm
Ø25mm
Ø33mm
Ø33mm
LEFT
VERTICAL
RIGHT
Place against wall in shower cubicle
LEFT
VERTICAL
RIGHT
TOP
TOP
Place against wall in shower cubicle
19