1062889-W2-B Mira Advance ATL.indd

8
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AN
MIRA ADVANCE ATL
ELECTRIC SHOWER
Installation & User Guide
This product is suitable for mains fed cold water only.
These instructions are to be left with the user
1
CONTENTS
Introduction ............................................................................................. 3
Important Safety Information ................................................................. 4
Pack Contents ......................................................................................... 6
Dimensions .............................................................................................. 7
Specifications .......................................................................................... 8
1. Plumbing .......................................................................................... 8
2. Electrical ........................................................................................... 8
3. Standards and Approvals ................................................................. 8
4. Patents ............................................................................................. 8
Shower Performance .............................................................................. 9
Installation Requirements .................................................................... 10
1. Plumbing ........................................................................................ 10
2. Electrical ......................................................................................... 12
Installation ............................................................................................. 14
Priming the Mira Advance ATL ........................................................... 17
Adjustable Temperature Limit .............................................................. 20
Commissioning ..................................................................................... 21
Operation ............................................................................................... 23
1. Using your Mira Advance ATL ....................................................... 23
2. Storing the Memory Presets (Memory Control Model only) ........... 25
3. How your Mira Advance ATL Shower Works .................................. 26
Fault Diagnosis ...................................................................................... 28
1. Users Troubleshooting Guide ......................................................... 28
2. Installers Troubleshooting Guide .................................................... 30
Maintenance........................................................................................... 34
Wiring Diagram ...................................................................................... 40
Spare Parts ............................................................................................ 42
Accessories ........................................................................................... 42
Customer Service ....................................................................Back Page
2
TO THE CUSTOMER...
Mira Advance ATL key features:
•
•
•
Designed for safety and comfort.
Automatically adjusts to maintain constant temperature.
Constantly monitors supply conditions.
Mira Advance ATL models covered by this guide
Memory
Push
Button
Feature
Extended
Lever
Control
Drain
Pump
Compatible
Product
Variant
8.7
9.8
Adjustable
Temperature
Limit
Standard
9
9
9
8
8
8
Memory
Flex
9
9
9
9
9
9
9
8
8
9
8
8
Standard
Extra
9
8
9
8
8
9
Flex
Extra
9
8
9
8
9
9
•
The following separate drain kits are required for the "Extra" models:
SDP044T Mira Whale Tray Kit (complete with 50 mm gully)
SDP054T Mira Whale Wet Floor Kit (complete with wet gully for vinyl)
If you experience any difficulty with the installation or operation of your new Electric
Shower, then please refer to “Fault Diagnosis”, before contacting Kohler Mira Ltd.
Our telephone and fax numbers can be found on the back cover of this guide.
3
IMPORTANT SAFETY INFORMATION
1. Warning!
1.1 Products manufactured by us are safe and without risk provided they are
installed, used and maintained in good working order in accordance with our
instructions and recommendations.
1.2 THIS APPLIANCE MUST BE EARTHED. MAKE SURE SUPPLEMENTARY
BONDING COMPLIES WITH THE "REQUIREMENTS FOR ELECTRICAL
INSTALLATIONS".
In accordance with the current edition of 'The Plugs and Sockets etc. (Safety)
Regulations' in force at the time of installation, this appliance is intended to be
permanently connected to the fixed electrical wiring of the mains system.
1.3 DO NOT twist the individual cable cores of the live and neutral conductors, as
this will prevent them from entering the terminal block.
1.4 The shower unit must not be fitted where it may be exposed to freezing
conditions. Make sure that any pipework that could become frozen is properly
insulated.
1.5 DO NOT operate this appliance if it appears to be frozen. Allow the appliance
to thaw and then contact your installer before using again.
1.6 DO NOT operate this appliance if water leaks from the Case. Maintenance may
be required before the appliance can be safely used.
1.7 DO NOT fit any form of outlet flow control as the outlet acts as a vent for the
tank body. Only Mira recommended outlet fittings should be used.
1.8 There are no user serviceable components beneath the cover of this appliance.
Only a competent tradesperson should remove the cover.
1.9 If any of the following conditions occur, isolate the electricity and water supplies.
Contact your installer or refer to 'To contact us', on the back page of this
guide.
1.9.1 If the cover is not correctly fitted and water has entered the appliance
case.
1.9.2 If the case is damaged.
1.9.3 If the appliance begins to make an odd noise, smell or smoke.
1.9.4 If the appliance shows signs of a distinct change in performance,
indicating a need for maintenance.
1.10 Isolate the electrical and water supplies before removing the cover.
1.11 Mains connections are exposed when the cover is removed.
1.12 Refer to the wiring diagram before making any electrical connections.
1.13 Make sure all electrical connections are tight, to prevent overheating.
4
2. Caution!
2.1 Read all of these instructions and retain this guide for later use.
2.2 Pass on this guide in the event of change of ownership of the installation site.
2.3 Follow all warnings, cautions and instructions contained in this guide, and on
or inside the appliance.
2.4 The electrical installation must comply with the "Requirements for Electrical
Installations" commonly referred to as the IEE Wiring Regulations, or any
particular regulations and practices, specified by the local electricity supply
company in force at the time of installation. The installation should be carried out
by an electrician or contractor who is "Part P" (Building Regulations) registered,
or is a member of, an association such as:
2.4.1 National Inspection Council for Electrical Installation and Contracting
(NICEIC), throughout the UK.
2.4.2 The Electrical Contractors Association (ECA), England and Wales.
2.4.3 The Electrical Contractors Association of Scotland (ECAS).
2.5 This appliance is a high power unit, it is essential to contact your electricity supply
company to ensure that the electricity supply is adequate for the purpose.
2.6 The plumbing installation must comply with the requirements of UK Water
Regulations/Bye-laws (Scotland), Building Regulations or any particular
regulations and practices, specified by the local water company or water
undertakers. The installation should be carried out by a plumber or contractor
who is registered, or is a member of, an association such as:
2.6.1 Institute of Plumbing (IOP), throughout the UK.
2.6.2 National Association of Plumbing, Heating and Mechanical Services
Contractors (NAPH & MSC), England and Wales.
2.6.3 Scottish and Northern Ireland Plumbing Employers’ Federation (SNIPEF),
Scotland and Northern Ireland.
2.7 Anyone who may have difficulty understanding or operating the controls of any
shower should be attended whilst showering. Particular consideration should
be given to the young, the elderly, the infirm, or anyone inexperienced in the
correct operation of the controls.
2.8 When this appliance has reached the end of its serviceable life, it should be
disposed of in a safe manner, in accordance with current local authority recycling,
or waste disposal policy.
5
PACK CONTENTS
Tick the appropriate boxes to familiarize yourself with the part names and to
confirm that the parts are included.
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Pre
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Re
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Sto
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1 x Mira Advance ATL
Standard or Standard Extra
(Whale Shower Drain Pump
supplied separately)
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1 x Mira Advance ATL
Memory
1 x Compression Nut
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Hig
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1 x Olive
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Lo
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Pre
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1 x Mira Advance ATL
Flex or Flex Extra
(Whale Shower Drain Pump
supplied separately)
1 x Tap Connector Adaptor
(for fitting to existing tap connector)
2 x Wall Screws
1 x Earth Sleeve
2 x Wall Plugs
1 x Installation and User Guide
1 x Installer Checklist
1 x Installation Template
1 x Guarantee Card
6
DIMENSIONS
84.5 mm
168 mm
68 mm
Temperature
4
5
6
7
3
8
2
68 mm
Temperature
395 mm
395 mm
168 mm
84.5 mm
4
5
6
7
3
8
2
9
1
9
1
Flow
Flow
High
Medium
High
Low
Medium
Low
Stop
Stop
Reset
Reset
11
Low Pressure
Advance ATL Standard
or Standard Extra
Store
22
Low Pressure
3
4
5
5
Advance ATL Memory
110 mm
168 mm
395 mm
68 mm
Temperature
4
5
6
7
3
8
2
9
1
Flow
High
Medium
Low
Stop
Reset
Low Pressure
Advance ATL Flex
or Flex Extra
All dimensions are nominal
7
Plumbing Supply
SUPPLY/SPECIFICATIONS
Supply Source
Recommended Minimum
Dynamic Pressure*
Maximum Static Pressure
Minimum Static Pressure**
Maximum Inlet Temperature
Minimum Inlet Temperature
Inlet/Outlet Connections
Nominal Rating at 230 V
Nominal Rating at 240 V
Mains cold water only
100 kPa (1.0 bar)
1000 kPa (10 bar)
20 kPa (0.2 bar)
28°C
2°C
½" BSP male fitting
8.0 kW
9.0 kW
8.7 kW
9.8 kW
8.7 kW
40 Amps
9.8 kW
45 Amps
Electrical Supply
Supply Fuse/Circuit Breaker
Residual Current Device RCD
(Strongly Recommended)
30 mA
No larger than 16mm²
Note: Refer to current IEE
regulations to determine
minimum cable size.
45 Amp Double pole, with
3mm contact separation.
30°C
2°C
Supply Cable
Isolation Switch
Maximum Ambient Temperature
Minimum Ambient Temperature
*
Thermostatic performance will be maintained down to 50 kPa (0.5 bar) with reduced flow
performance.
** Static pressure must never fall below 20 kPa (0.2 bar) when other draw offs are in use, e.g. flushing
toilet. This is the minimum pressure required to keep the flow valve closed.
Standards and Approvals
The Mira Advance ATL complies with the requirements of the BEAB Care Mark
Standard and the relevant directives for CE marking.
Patents and Design Registration
Design Registration:
2 087 315, 2 087 316, D.13322, D.13320
Patents:
2269466, 2270370, 2298478, 2298479, 2298481
8
SHOWER PERFORMANCE
What affects shower performance?
The shower unit's top priority is to keep the desired water temperature constant.
To maintain this temperature, the shower may have to automatically change the
rate of water flowing through the unit. Any of the following conditions can cause the
shower to change the flow rate (force of the shower) in order to keep the temperature
constant. Most changes are minor and will go unnoticed.
Seasonal changes
affecting water supply
temperature.
Changes of incoming
supply voltage.
Changes in Flow Rate
(force of shower).
Temperature remains
constant.
hot pipe
Changes of incoming
supply pressure.
mains cold
pipe
Heat transfer due to
position of mains cold
water pipe.
E.g.
Positioned next to hot
water pipe.
Routed through heated
area such as loft or
airing cupboard.
Mains cold water draw
off, e.g. toilet, wash
basin etc.
9
INSTALLATION REQUIREMENTS
General Notes
This product works best when supply temperatures and pressures remain
stable and within the product specifications, refer to section "Specifications".
If the supply conditions fall outside the specifications, the shower may go into
a safe shut down condition.
1. Plumbing
Refer to section: "Important Safety Information" first.
1.1 Do not use sealing compounds on any pipe fittings or joints.
Supply pipework MUST be flushed to clear debris before connecting the Mira
Advance ATL. Debris will reduce the performance of the unit.
1.2 Avoid running the pipework through excessively hot or cold areas such as hot
loft spaces, airing cupboards, or in close proximity to hot water pipes. If this
cannot be avoided, we would recommend insulating the pipes.
1.3 Never fit the unit to hot water supplies or to gravity systems of any description.
Only fit the product to a mains cold water pipe.
1.4 The Mira Advance ATL is suitable for installation within a shower area and must
be positioned over a water catchment area with the controls at a convenient
height for the user. The shower fittings should be positioned so that the handset
discharges down the centre line of the bath, or across the opening of a shower
cubicle, and must be directed away from the Mira Advance ATL.
1.5 The Mira Advance ATL is fitted with an inlet connector assembly that is designed
to accept water supplies from the top or bottom. The water supply can be fed with
15 mm pipe or 10 mm microbore pipe, suitably adapted for the inlet connector
assembly. If 10 mm microbore is used, then an allowance for increased pressure
loss must be made to make sure that the minimum maintained inlet pressure
of 1 bar is achieved, refer to section: "Specifications".
1.6 The Mira Advance ATL must be fitted onto the finished wall surface i.e. on top of
the tiles. Do not block the air ventilation gaps around the sides of the unit, either
by tiling up to the sides of the unit or by using a sealant around the case (Small
pillars moulded on to the back of the case allow air circulation). The appliance
is designed to be ventilated. Failure to do this may cause product failure.
1.7 We recommend that a non-restrictive (free flowing) isolating valve is fitted in
the cold water supply pipe to allow maintenance of the Mira Advance ATL. Do
not fit a valve that has a loose washer plate (jumper) as this can lead to a build
up of static pressures.
1.8 When installed in very hard water areas (above 200 ppm temporary hardness)
your installer may advise the installation of a water treatment device, to reduce
the effects of limescale formation. Malfunction of the Mira Advance ATL due to
excessive limescale formation is not covered by the manufacturer's guarantee.
Your local water company will be able to advise the hardness of water in your
area.
10
1.9 The hose should be fitted through the hose retaining ring to prevent the handset
from dropping below the spill-over level of the bath or shower, which could lead
to contamination from backsiphonage.
The hose retaining ring should meet
the majority of user requirements
for shower installations with flexible
outlet fittings. However, there will be
occasions when the hose retaining
ring will not provide a suitable solution.
In these instances an outlet double
checkvalve, e.g. the Mira DCVH, must be fitted, refer to section:
"Accessories". The inclusion of the
Mira DCV-H will increase the required
25 mm
supply pressure typically by 10 kPa
minimum
(0.1 bar).
Caution! Double checkvalves, fitted
Spill-over
in the inlet supply to the appliance,
Level
cause a pressure buildup, which could
exceed the maximum static inlet pressure for the appliance.
1.10 Avoid layouts where the shower hose will be sharply kinked. This may reduce
the life of the hose.
11
2. Electrical
Refer to section: "Important Safety Information" first.
2.1 In a domestic installation, the rating of the electricity supplier’s fuse and the
consumer unit must be adequate for the additional demand. All Mira Advance
ATL electric showers are high power units, therefore it is essential to contact
your electricity supplier to make sure that the supply is adequate for the
product. Voltage drop due to local heavy demand will reduce the shower’s
performance.
2.2 The Mira Advance ATL must be earthed by connecting the supply-cable earth
conductor to the earth terminal.
Supplementary bonding: Within the bathroom or shower room, all accessible
conductive parts of electrical equipment and extraneous conductive parts (metal
parts) that are likely to introduce earth potential, must be electrically bonded to
earth using a minimum cable size of 4.0 mm2 if the cable is not mechanically
protected, (2.5 mm2 if mechanically protected).
2.3 The minimum required supply cable size must conform to BS 7671.
2.4 As a guide only, and in accordance with BS 7671 we recommend close circuit
protection:
i.e.
8.7 kW = 40 Amp
9.8 kW = 45 Amp
It is strongly recommended that a 30 mA Residual Current Device (RCD) is
included in the electrical circuit. This may be part of the consumer unit or a
separate unit.
A separate, permanently connected supply is taken from the consumer unit to
the appliance through a double-pole switch, which has at least 3 mm contact
separation. The switch can be a ceiling mounted pullcord type within the shower
room or a wall mounted switch in an adjacent room.
2.5 DO NOT twist the individual cable cores of either the live or neutral conductors,
as this will prevent them from entering the terminal block.
2.6 DO NOT exert strain on the terminal block. Make sure that the electrical
connections are tightly screwed down.
2.7 DO NOT turn on the electrical supply until the plumbing has been completed.
12
Mira Advance ATL
Consumer Unit
Clamp
Bracket
Temperature
5
4
7
3
8
2
9
1
45 A Double-pole
Isolating Switch
Flow
High
Medium
Low
Stop
Service
Low Pressure
RF2 Handset
Holder
Optional Outlet
Double Checkvalve
Isolating
Valve
Signal Cable
Hose
Retaining
Ring
Mains-fed Cold
Water Supply
Terminal Block
Shower
Drain Pump
Switched
Spur
Transformer/
Controller
Push Button
Override Switch
Standard Extra & Flex Extra
models only
Plumbing and Electrical Schematic Diagram
13
INSTALLATION
Refer to section: "Important Safety Information" first.
This installation covers all models of the Mira Advance ATL Thermostatic
shower.
Warning! Isolate the electrical and water supplies before proceeding with the
installation of the Mira Advance ATL. The electricity supply must be turned off at the
mains and the appropriate circuit fuse removed, if applicable.
Note! Bottom inlet is illustrated for clarity in these instructions.
Case Securing
Screw
Plumbing Connection
1.1 Unscrew the Case Securing Screw
and carefully pull the bottom of the
Cover outwards and upwards off the
Case.
1.2 Remove the Inlet Shield, located over
the Inlet Connector Assembly.
1.3 When deciding the position of the
Mira Advance ATL on the wall, allow
100 mm minimum clearance to
the right hand side of the case, to
provide unrestricted access to the
inlet connector, for installation and
maintenance. Allow 10 mm minimum
clearance from the top of the case to
allow the cover to be removed.
1.4 Determine whether the cold water
and cable supplies will be top (falling),
bottom (rising), or rear inlet to the
Mira Advance ATL. Provision must be
made for routing the signal cable from
the appliance to the Shower Drain
pump (up to 2 m), this applies to the
Standard Extra and Flex Extra models
only.
Note! Rear inlet must allow access to
the water supply pipe fittings.
14
Inlet Shield
13-Way
Multi-Connector
Transit
Sealing Cap
(outlet)
1.5 Turn the inlet connector assembly to
suit the supply pipe position. Avoid
trapping the green earth bonding
wire.
10 mm Minimum
1.6 Remove as appropriate, the thinned
sections in the Mira Advance ATL
case, to allow the pipe and cable to
enter the product.
1.7 Install the mains-fed cold water supply
pipe.
Caution! Do not use sealing
compounds on any pipe fittings for
the installation.
The Mira Advance ATL can be
connected to either a compression
fitting (supplied) or a tap connector
(not supplied).
If upgrading from an existing shower
that uses a tap connector, then
the tap connector adapter can be
used in place of the fibre washer.
This allows the tap connector to
be used in conjunction with the
compression fitting of the product
(refer to illustration).
For rear inlet supplies, the cold water
pipe must emerge from the surface of
the wall 'square' to prevent straining
the inlet connector clamp bracket.
Refer to illustration for options.
To avoid damage to the Mira Advance
ATL when soldered fittings are used,
soldering must not be carried out in
the vicinity of the unit as heat transfer
can damage components.
100 mm
Minimum
Falling
Supply
Falling
Rear Inlet
Supply
Front
of Mira
Advance
ATL
Rising
Supply
Rising
Rear Inlet
Supply
?
15
9
8
For connection to a
tap connector use the
tap connector adaptor
(supplied). Do not fit
the fibre washer.
1.8 Thoroughly flush the mains-fed cold
water supply pipe. The water supply
pipework must be clean and free from
debris before connecting to the Mira
Advance ATL.
Note! Pipework debris will reduce the
performance of the unit.
To flush the pipework, turn on the
water supply and drain a minimum
of 10 litres (2 gallons) of water into a
bucket or catchment area. Turn off the
water supply.
Upper Fixing Holes
1.9 Avoiding buried cables and pipes,
choose one of the upper fixing holes
which will allow the Mira Advance ATL
to be firmly fixed to the wall structure,
and drill through the thinned hole
section in the back of the case.
1.10 Unscrew the transit sealing caps
from the inlet and outlet of the Mira
Advance ATL.
Note! A small amount of water may
be released.
1.11 Offer the Mira Advance ATL up to
the wall and temporarily connect the
mains-fed cold water supply pipe.
Mark through the casing the position
of the upper and lower holes. Remove
the Mira Advance ATL from the wall
before drilling. This will prevent debris
from entering the Mira Advance ATL.
1.12 Drill and suitably plug the two fixing
holes. Route the Signal Cable to
the Terminal Block located on the
Transformer Cable of the Shower
Drain Pump (Standard Extra and Flex
Extra models only).
16
Lower Fixing Holes
Do not connect
Signal Cable to mains
Electricity Supply!
(Standard Extra and Flex Extra
models only)
1.13 Secure the Mira Advance ATL to
the wall with the screws provided.
Alternative fixings (not supplied)
may be necessary for some wall
structures.
Make the connection to the mains-fed
cold water supply pipe, DO NOT allow
debris to enter the inlet connector.
Hold a wrench across the flats of the
inlet connector assembly to prevent
damage to the connector, whilst
tightening the compression nut. Turn
on the water supply and check for
leaks.
Priming the Mira Advance ATL
Caution! Make sure electricity is isolated
before priming the unit.
1.14 Connect the shower hose to the Mira
Advance ATL and position the hose to
discharge into the shower tray or bath
waste outlet.
1.15 Press down the air bleed button,
located on top of the flow valve. This
will allow the Mira Advance ATL to
fill with water and expel any trapped
air. A small amount of water must be
discharged.
Note! Failure to prime the unit will
severely affect performance.
Note! When the air bleed button is
pressed, water at full mains supply
pressure will flow from the shower
hose.
Caution! When the air bleed button
has been pressed, make sure that
it does not foul when released;
otherwise water will continue to
discharge from the bleed button.
Dry off any excess water prior to
connecting electrical supply.
17
Air Bleed
Button
1.17 Strip back approximately 40 mm of
the outer cable insulation. Fit the earth
sleeve over the earth conductor.
Note! DO NOT twist the individual
cable cores of the live and neutral
conductors, as this will prevent them
from entering the terminal block.
Connect the cables firmly into the
Terminal Block Conductor Clamps.
Make sure that the bare cores of
each cable are securely trapped
within each Conductor Clamp (refer
to illustration).
Using a suitable screwdriver, securely
tighten the Conductor Clamp
Screws.
L = Brown Wire
N = Blue Wire
E = Yellow/Green sleeved wire
40 mm
Electrical Connection
1.16 Bring the electrical supply cable into
the case via one of the cable entry
points, and offer up to the terminal
block.
Earth Sleeve
8
9
Terminal Block
Conductor Clamps
1.18 Check that the earth bonding wire to
the inlet connector assembly is tight.
Make sure that the 13-Way MultiConnector lead is clear of the cover
when it is refitted. Refit the inlet shield
over the inlet connector assembly.
1.19 If necessary, fit an earth bonding
clamp to the copper supply pipe and
make sure bonding complies with the
relevant regulations in force at the
time of the installation.
Terminal Block
Inlet Shield
Multi Connector
Lead
18
1.19 Connect the 13-Way Multi-Connector
lead from the relay board, in the Mira
Advance ATL, to the socket on the
control PCB located in the cover.
The multi-connector is a one way
fit into the receiving socket on the
control PCB. Make sure that the
multi-connector is correctly orientated
as illustrated. Make sure that the
connector is pushed home fully.
Mains Terminal Conductor Clamps
1.20 Make sure that the 13-Way MultiConnector lead is seated between the
tank body and the left hand side of the
case. Then refit the cover by locating
the top of the cover onto the location
strip on the top of the case.
1.21 Push the bottom of the cover against
the case until it locates correctly.
Install the screw and tighten.
1.22 I f r e q u i r e d , r e f e r t o s e c t i o n :
"Adjustable Temperature Limit"
for setting the maximum temperature
of the shower.
1.23 Route Pump signal cable from
the appliance out of the bathroom
area and connect to the pump,
refer to Whale Shower Drain Pump
manufacturer's recommendations
(Standard Extra and Flex Extra
models only).
Note: Polarity is not important.
Shower Fittings
1.23 Install the shower fittings, refer to
the fittings "Installation and User
Guide".
Note! The high capacity spray plate
illustrated in the shower fitting guide
is not supplied with this Mira Advance
ATL.
19
Important! The connector
must be correctly orientated
and pushed fully home
ADJUSTABLE TEMPERATURE LIMIT
The Mira Advance ATL has been factory set to deliver a maximum water temperature
of 48°C. If the shower is to be operated within a healthcare or special needs
environment, it is recommended that you carry out the procedure detailed below.
The Mira Advance ATL is capable of limiting the maximum water temperature to
between 37°C and 48°C.
Example: If the Temperature Restriction Dial has been set to correspond with
position 4 (41°C), then the maximum showering temperature of 41°C will be achieved
at approximately position 6 on the 'Temperature Knob' on the Front Cover of the
Shower. Further clockwise movement of the 'Temperature Knob' will not increase
the showering temperature.
Note! Advance ATL Memory: Selecting a preset temperature that was previously set
above the new maximum temperature setting will cause the shower to shut down
automatically. This is a safety precaution.
To adjust the Maximum Temperature Setting:
1. Remove the Cover, refer to section: 'Maintenance, 3. Cover, Removal and
Reassembly'.
Note! There is no need to remove the 13-Way Multi-Connector.
2. Using a small screwdriver, rotate the "Temperature Restriction Dial" to the
desired setting.
3. Refit the Cover.
Restriction Dial Setting
Position
Temp °C
0
37
1
38
2
39
3
40
4
41
5
42
6
45
7
48
Advance ATL Cover
(viewed from the back)
Rotate the arrow on the Temperature Restriction
Dial to set the desired maximum water temperature
20
COMMISSIONING
Important! The Mira Advance ATL will "adapt" it's settings for the individual supply
conditions and store this information in it's memory (during manufacture, this
information is factory set using ideal conditions). On initial installation, the unit needs
to "learn" about it's site conditions and does so during the commissioning cycle. It is
important that the unit is commissioned correctly otherwise an error condition may
occur. Once set, the unit constantly updates it's memory with information about
the site conditions to optimize the shower's performance. This is stored once the
"STOP" button is pressed.
Basic Operation Checks
1. Switch on the electrical supply at the
Temperature
mains and test the Shower Drain Pump (if
5
applicable, see separate Shower Drain Pump
4
instructions) before turning the shower
7
3
on. Switch on the electrical supply at the
double-pole switch. The red indicator beside
8
2
the "STOP" button will illuminate to indicate
9
that the electrical supply is connected to the
1
shower.
2. Turn the "TEMPERATURE" control knob
Flow
to full cold. The control knob operates
clockwise from cold to hot and features a
High
detent on the final travel to the cold only
Medium
position.
3. Press the "LOW" button and observe the
Low
green indicator with audible tone. Check
that cold water flows freely from the shower
Stop
within a few seconds. If a delay of more than
5 seconds is encountered, then it is likely that
Low Pressure
Reset
the unit has not been primed.
Refer to section: "Installation, Priming the
Mira Advance ATL".
Should the unit still not function then refer to section: 'Fault Diagnosis'.
After a short delay, the Shower Drain Pump (if applicable) should operate and
drain the waste water, after the shower is turned on.
Commissioning Cycle
During this process, the unit will calibrate itself to the site conditions.
4. Press the "LOW" button and turn the "TEMPERATURE" control knob to
position "5" and allow the unit to operate for 2 minutes.
21
5.
6.
7.
Press the "MEDIUM" button and observe the green indicator light and the
audible tone. Allow the unit to operate for 2 minutes.
Press the "HIGH" button and observe the green indicator light and the audible
tone. Allow the unit to operate for 2 minutes.
Store the calibration by pressing the "STOP" button.
Temperature Checks
8. Press the "LOW" button and observe the green indicator light and the audible
tone.
9. Turn the "TEMPERATURE" control to cold
and then slowly turn from cold through to
Temperature
position number "6", which is a typical
5
4
showering temperature. If a satisfactory
temperature cannot be achieved, then turn
7
3
the "TEMPERATURE" control through to
8
2
position number "8".
Note! Changing the temperature requires
9
1
the staged power up and power down of
individual heating elements. During this
sequence the user may hear a number of
Flow
audible 'clicks' from the relays.
High
10. Press the "MEDIUM" button and observe
the green indicator light and the audible
Medium
tone. The selected temperature will remain
Low
relatively constant.
9. Press the "HIGH" button and observe
Stop
the green indicator light and the audible
tone. The selected temperature will remain
Low Pressure
Reset
relatively constant.
10. Press the "STOP" button and observe the
red indicator light and the audible tone. The
unit will continue to run for a few seconds before shutting off. Audible "clicks" will
be heard. There will be a maximum delay of up to 4 minutes before the Shower
Drain Pump (if applicable) shuts down and stops draining the waste water after
the shower is turned off (see Whale Shower Drain Pump Installation Guide).
The commissioning procedure is now complete.
Note! Water may continue to drip for a short time whilst the water drains out of
the handset .
Note! High cold water mains supply pressures and high shower temperatures
will cause a slight audible hissing sound to be heard from the unit whilst it is
operating. This is quite normal and does not indicate that there is a fault with
the unit.
22
OPERATION
1. Using your Mira Advance ATL
Electric showers work by taking in cold water and passing it over heating elements
contained in the tank body of the shower.
The showering temperature is adjusted by turning the temperature control knob,
which varies the flow of cold water passing over the elements. The slower the rate
of flow, the warmer the shower and vice versa. The holes in the spray plate of the
shower handset should always be kept clean to maintain a consistent flow and stable
shower temperatures.
FLOW
HIGH
Note! Always check the shower
MEDIUM
temperature before entering the shower.
LOW
The previous user may have selected a
FLOW
different temperature.
HIGH
1.1 Switch on the pull-cord or wall
MEDIUM
LOW
mounted switch. The red "STOP"
indicator on the Mira Advance ATL
FLOW
HIGH
will provide a visual indication that the
MEDIUM
power is on.
LOW
1.2 Press one of the three flow buttons,
"HIGH", "MEDIUM" or "LOW". The
adjacent green indicator will illuminate
and an audible tone will confirm the
action.
For the Advance ATL Memory, press
one of the five memory buttons.
Note! The temperature control knob
is inactive during memory control
operation.
1.3 Wait 15 - 20 seconds for warm water
to reach the handset. If the "LOW"
button was pressed then this time may
be longer.
1.4 If necessary turn the "TEMPERATURE"
control knob clockwise to increase
the temperature, or anticlockwise to
decrease the temperature. Wait 10–15
seconds for the adjusted temperature
COLD
to reach the handset. There will
be a change in flow rate when the Clockwise Î WARMER Î less flow
temperature is adjusted. The control
Anticlockwise Î COOLER Î more flow
knob operates clockwise from cold to
hot and features a detent on the final travel to the cold only position.
Temperature
5
4
7
3
8
2
9
1
Flow
High
Medium
Low
Stop
Reset
4
5
6
7
8
2
9
1
4
5
6
7
3
8
2
1
4
3
5
7
8
2
9
1
23
Low Pressure
Thermostatic Performance
To maintain thermostatic performance the unit may override the selected flow
condition. The selected flow indicated does NOT change. Refer to section "Safety
Override".
For the Advance ATL Memory model:
1.5 To leave memory control mode,
and to regain the use of the
"TEMPERATURE" control knob,
press one of the following buttons;
"HIGH", "MEDIUM" or "LOW".
The shower temperature and flow
rate will change from the preset
memory button condition to that
selected by the chosen flow button
and "TEMPERATURE" control knob
position.
Hint! When returning to standard
control, position the 'TEMPERATURE'
control knob at the midpoint i.e.
vertical.
1.6 Important! TO TURN OFF always
press the "STOP" button and allow
the Mira Advance ATL to perform
its shutdown sequence. The red
indicator will illuminate and an audible
tone will confirm the action. The Mira
Advance ATL will continue to run for
a few seconds before stopping. This
phased shutdown is to remove heat
from the element assembly and tank
body.
1.7 Allow a few moments before turning
off at the pull-cord switch.
24
2. Storing the Memory Presets (Memory Control Model only):
Should you wish to change the five factory presets, proceed as follows:
Temperature
5
4
6
5
4
7
3
4
6
9
1
Flow
High
Flow
High
High
Medium
Medium
Low
Low
Stop
Low
Stop
Stop
Low Pressure
Store
2
9
Flow
Medium
Reset
8
1
9
1
7
2
8
2
4
3
Temperature
5
2
3
4
Temperature
5
4
7
5
6
7
8
2
9
1
4
3
3
8
2
9
1
Flow
Flow
High
High
Medium
Medium
Low
Low
Stop
Stop
Low Pressure
Reset
Store
2
2
Step 3
Press 'STORE'
6
3
1
Store
1
5
Step 2
Select your personal
temperature setting.
Step 1
Select your personal
flow setting.
4
Store
Low Pressure
Reset
Low Pressure
Reset
1
5
6
3
7
3
8
2
1
Temperature
5
Temperature
3
4
Reset
1
5
Step 4
Press one of the
numbered preset buttons
Low Pressure
Store
2
3
4
5
Step 5
Press 'STOP' before
turning off the Mira
Advance ATL
Note! If the electrical supply is isolated without operating the "STOP" button the
memory setting will be lost. The "Storing Memory" preset procedure will need to be
repeated.
The unit has a built in "power off" timer function to protect from accidental unattended
operation. This feature automatically switches the unit off after 30 minutes of
continuous use. Normal operation is restored by re-selecting the power on button.
25
3. How your Mira Advance ATL Shower Works
Refer to section: "Important Safety Information" first.
3.1 The Mira Advance ATL has been precision engineered to provide years of high
performance showering. To ensure user safety whenever in use, the unit always
gives priority to the showering temperature and continually monitors the supply
conditions to make sure this temperature is stable. To do this, the unit carries
out thousands of adjustments each second to maintain the selected showering
temperature at the chosen flow setting.
3.2 The unit constantly monitors the following conditions:
•
The incoming cold water temperature.
•
The outgoing shower temperature.
•
The flow rate of water.
•
The current user settings.
The processor then calculates the flow rate and power level required to keep
the outgoing temperature constant. This mode of operation requires the staged
power up and power down of individual heating elements. During this sequence
the user may hear a number of audible 'clicks' and the flow rate may change.
3.3 As outlined in section "Shower Performance", certain conditions can cause
the shower's performance to vary. Under certain supply conditions, some flow
settings may not be possible at the desired showering temperature. These
limitations are detailed as follows:
Flow Settings - In hot summer conditions, high incoming water temperatures
may cause the unit to override and reduce the selected flow settings. Users
may notice a reduced flow rate, which is not indicated by the unit. Normal flow
rates will typically be restored once the incoming temperature has dropped.
Temporary Changes - Temporary changes in supply conditions may cause the
selected flow setting to be temporarily unavailable. For example, the flushing of
a toilet on the same supply. If temperature control at the selected flow setting
is not possible, the unit will automatically override that setting (may switch flow
setting either down or up) and attempt to control at the next nearest setting. For
instance, the unit may override the power setting from High - Medium - Low.
Note! the unit continues to remember and display the user selected flow setting
on the control panel, even though the actual flow setting has automatically
changed. If this override occurs, the user may see visible changes in the shower
flow at the handset during showering. At all times, the selected safe showering
temperature will be maintained.
For safety reasons, the unit will continue to override the desired power setting
even though the reason for low pressure has been corrected (say another draw
off system). In this case the user may be able to restore the desired power
setting by reselecting the relevant power button.
26
Shut Down - Extreme changes in operating conditions, e.g. pressure dropping
below specification, may cause the unit to detect conditions that would result
in unsafe showering. If this occurs, the unit automatically shuts down and the
"reset/service" light or "low pressure" light is illuminated.
If this occurs, switching off the mains power to the unit (at the pull cord, not the
unit "STOP" button) resets the memory to its last setting during the previous
operation. The unit will then try to resume control - please allow a few moments
for it to re-optomize. If the operating conditions have returned to normal, then
showering will be resumed.
If unsafe showering conditions are still detected, the unit will switch off again. At
this stage, please check the site conditions for low pressure or adversely high
inlet water temperatures.
3.4 The curves on the graph show the specified flow output, depending upon voltage
(240 V shown) and incoming water temperature, used to calculate temperature
rise.
3.5 All Mira Advance ATL heating elements have a manufacturing tolerance.
Therefore flow rates can be above or below those indicated.
3.6 The left-hand scale is temperature rise. (Temperature rise = Heater tank outlet
temperature minus the incoming cold water temperature.)
Note! Due to temperature/flow loss through the shower hose and fittings, the
showering flow rate achieved may not accurately match the flow rate shown on
the graph.
Temperature Rise versus Flow for the Mira Advance ATL 8.7 & 9.8 kW
Temperature rise 0C
60
50
40
9.8 kW
30
8.7 kW
20
10
0
2
3
4
5
6
7
8
9
10
Flow rate (litres per minute)
3.7 At pressures below 100 kPa (1 bar) maintained, the full flow performance may
not be achieved.
Example: For the Mira Advance ATL 9.8 kW on full power setting with an
incoming water supply at 10°C and a heater tank outlet temperature at 42°C,
the temperature rise is 32°C. The flow rate is approximately, 4.5 l/min.
3.8 In the event that the unit fails to respond to any push-button instructions, or
exhibits unusual performance characteristics during operation, first turn off the
electrical supply by operating the pull-cord switch, wait for a few moments for
the appliance to reset, then turn on the pull-cord switch and operate the shower.
If the problem still persists then refer to section: "Fault Diagnosis".
27
FAULT DIAGNOSIS
1. Users Troubleshooting Guide
The Mira Advance ATL electric shower is fully performance tested after assembly.
In the unlikely event that you experience problems with the Mira Advance ATL, then
the following procedures will enable you to undertake basic troubleshooting before
contacting the person responsible for installing your shower.
Warning! There are no user serviceable components beneath the cover of the Mira
Advance ATL. Only a competent tradesperson should remove the cover.
Indicator Display
Temperature
4
5
Temperature
4
6
7
3
1
7
Flow
7
8
Flow
7
8
9
1
Flow
Flow
High
High
High
Medium
Medium
Medium
Medium
Low
Stop
Reset
Store
2
Low
Stop
Low Pressure
3
1
4
Stop and Low
Pressure
Malfunction
1. No flow or very low flow rate,
followed by the unit turning
off.
2. No flow change after button
is selected.
Low
Stop
Reset
5
Store
2
Low Pressure
4
3
Stop
Reset
1
5
Store
2
Low Pressure
Reset
5
3
4
Reset
Flow
(or Service)
(High, Medium or Low)
Indicator Display
Stop and Low
Pressure
Flow
(High, Medium or Low)
3. Low Flow Rate.
4. Sudden, rapid increase in flow
for a short period, eventually
returning to expected flow
rate and temperature. This
may occur after a period of
non-use.
5. Shower automatically shuts
off a few seconds after start
up.
Stop and Low
Pressure
Flow
(High, Medium or Low)
28
6
2
9
1
5
3
High
Low
1
4
6
2
9
1
Temperature
3
8
2
9
5
4
6
3
8
2
5
Temperature
1
Store
2
Low Pressure
5
3
4
Stop
Cause/Rectification
a. Blocked spray plate.
b. Water supply isolating valve
turned down.
c. This is normal during low
pressure thermostatic
performance, improve the
supply pressure.
a. Insufficient water supply
pressure.
b. A section of supply pipe is
preheating the cold water
supply to the shower. e.g.
supply pipe is running through
a loft or is adjacent to hot water
pipes. Turn the Temperature
control to full cold and press
the "High" flow button. Run
the shower for 60 seconds,
Malfunction
Indicator Display
Cause/Rectification
then press the "Stop"
button. Reselect the desired
temperature setting and press
the desired flow button. This
will flush the unwanted hot
water through the system
and is a temporary remedy. If
the problem persists, contact
your installer for advice on a
permanent remedy.
6. Water temperature is too
low.
7. Shower fails to operate when
any flow button is pressed.
Flow
(High, Medium or Low)
No Indicators
8. No water flow from the
handset.
9. Reset/Service light flashes,
flow will not stop after the
'STOP' button is pressed.
10.Any other fault condition.
Stop and Low
Pressure
Reset
(or Service)
11. Visible flow change (not
pulsating) without user
selection. User selection
lights remain unchanged.
(High, Medium or Low)
12.The shower shuts down when
certain presets are selected
(Memory Model Only).
Reset
13.The shower shuts down
without any user operation.
Flow
a. Incorrect Maximum
Temperature Setting.
b. Check internal wiring, make
sure that the 13-Way MultiConnector is plugged in at
both ends.
c. Power failure or electricity
supply isolated.
d. Fuse failed, MCB or RCD
tripped.
a. I n c o m i n g w a t e r s u p p l y
temperature below 1°C, allow
to thaw.
b. Temporary interruption of
electricity supply, following
restoration press flow or
memory preset button.
c. E x c e s s i v e t e m p e r a t u r e
or abnormal water supply
conditions, isolate electrical
supply for 10 seconds to allow
shower to reset. Restore
the electrical supply, if the
problem persists contact a
competent tradsperson.
a. Variations in water supply
temperature, the shower is
adjusting the flow to maintain
a constant showering
temperature.
(or Service)
a. M e m o r y p r e s e t s a r e
programmed above the
maximum temperature
setting. Reprogramme the
memory presets.
Stop
a. For safety the shower shuts
down after 30 minutes.
Reselect the flow button.
29
Malfunction
Indicator Display
Cause/Rectification
14.Shower leaks from the bottom
of the case.
Any
a. Isolate the electrical supply
and contact a competent
tradesperson.
15.No tone or continuous tone.
16.Faulty control buttons.
Reset
(or Service)
a. F a u l t y 1 3 - W a y M u l t i Connector or control PCB.
Contact a competent
tradesperson.
2. Installers Troubleshooting Guide
Refer to section: 'Important Safety Information' first.
Warning! Isolate the electrical and water supply before removing the cover.
Warning! Mains connections are exposed when the cover is removed.
Warning! Refer to wiring diagram before making any electrical connections.
Warning! Make sure all electrical connections are tight to prevent overheating.
Warning! Make sure all plumbing connections are watertight.
Providing the Mira Advance ATL has been correctly installed and is operated in
accordance with the instructions contained in this guide, difficulties should not
arise. If any maintenance is required then it must be carried out by a competent
tradesperson for whom the fault diagnosis chart, wiring diagram and maintenance
instructions are provided. Before replacing any parts make sure that the underlying
cause of the malfunction has been resolved.
When following these instructions, it is sometimes necessary to examine the Mira
Advance ATL with the electrical and water supplies turned on. It is therefore essential
that the appropriate safe working practices are followed in accordance with the
current Health And Safety Legislation.
When the mains supply is ISOLATED a multimeter can be used to carry out a
continuity check on certain components (e.g. supply fuse, heating elements,
transformer, thermal switch, etc.).
30
Indicator Display
Temperature
Temperature
Temperature
5
5
5
4
4
6
7
3
Flow
8
Flow
7
8
9
1
Flow
Flow
High
High
High
Medium
Medium
Medium
Medium
Low
Stop
Reset
Store
2
Low
Stop
Low Pressure
5
3
1
4
Stop and Low
Pressure
Malfunction
Store
2
Low Pressure
1
5
4
3
Stop
Reset
Store
2
Low Pressure
Reset
5
3
4
Reset
Flow
(or Service)
(High, Medium or Low)
Indicator Display
1. No response from shower.
No Indicators
2. No flow or very low flow
rate.
Low
Stop
Reset
Stop and Low
Pressure
Stop
31
6
2
9
1
5
3
High
Low
1
7
2
9
1
4
6
3
8
2
9
1
7
3
8
2
4
6
Temperature
1
Store
2
Low Pressure
5
3
4
Stop
Cause/Rectification
a. Fuse failed, MCB or RCD
tripped. Rectify fault and
replace or reset.
b. Poor internal wire connections,
check wire integrity, make
sure 13-Way Multi-Connector
is plugged in at both ends.
c. Faulty transformer, replace.
d. Faulty relay PCB, replace.
e. Faulty control PCB, replace
and recommission.
a. Inlet filter blocked, remove
and clean or replace.
b. Low pressure thermostatic
performance, refer to
section: "Operation, Low
Pressure Thermostatic
Performance".
c. F a u l t y o r d i s c o n n e c t e d
13-Way Multi-Connector.
Reconnect or replace.
d. Faulty relay PCB, replace.
e. Faulty element assembly,
replace and recommission.
f. Faulty flow valve, replace and
recommission.
g. Insufficient water supply
pressure, check isolating
valve is fully open.
Malfunction
Indicator Display
Cause/Rectification
3. Shower continues to drip after
being turned off or will not turn
off.
Stop
a. Faulty flow valve, replace and
recommission.
b. Below 20 kPa (0.2 bar),
water may drain from the
handset when the unit is not
functioning.
No Indicators
4. Shower leaks from the bottom
of the case.
5. Control panel malfunction
(e.g. no audible tone,
continuous tone, indicators
do not correspond with button
depression).
6. Shower heats water but does
not get hot enough.
7. Shower flow rate pulsates.
Any
Any
Flow
(High, Medium or Low)
Flow
(High, Medium or Low)
8. Rapid, continuous cycling of
power relays.
9. When shower is switched on
reset/service light flashes and
flow will not stop after stop
button is pressed.
Flow
(High, Medium or Low)
Reset
(or Service)
32
a. Faulty flow valve, replace and
recommission.
b. Faulty tank assembly, replace
and recommission.
c. Broken saddle clamp/case,
replace the shower.
d. Leak from inlet connection,
remake the connection.
a. Faulty control PCB, replace
and recommission.
b. F a u l t y o r d i s c o n n e c t e d
13-Way Multi-Connector.
Reconnect or replace.
a. Check maximum temperature
setting.
b. Faulty outlet temperature
sensor, replace tank assembly
and recommission.
a. Air trapped in flow valve,
isolate power and bleed.
b. F a u l t y i n l e t s e n s o r ,
replace the flow valve and
recommission.
c. Debris in flow valve, clean the
turbine.
d. Check the inlet filter is fully
screwed down.
e. Pressure above 1000 kPa (10
bar) maximum, reduce inlet
pressure.
a. F a u l t y i n l e t s e n s o r ,
replace the flow valve and
recommission.
b. Debris in flow valve, clean the
turbine.
c. Check the inlet filter is fully
screwed down.
a. Wet electronics, dry out.
b. Faulty relay PCB, replace.
Malfunction
10.Faulty buttons.
11. Intermittent reset/service light
during operation.
12.Reset/service light on when
flow is selected.
13.Reset/service light on and no
flow.
Indicator Display
Any
Reset
(or Service)
Cause/Rectification
a. Faulty control PCB, replace
and recommission.
a. Abnormal site conditions,
isolate electrical supply for
10 seconds to allow shower
to reset. Restore the electrical
supply, if the problem persists
contact Kohler Mira Limited.
b. Faulty inlet sensor, replace.
c. Debris in flow valve, clean or
replace.
d. Check the inlet filter is fully
screwed down.
e. Faulty outlet sensor, replace
the tank assembly and
recommission.
The following malfunction relates to the Standard Extra and Flex Extra models
when connected to the Whale Shower Drain Pump.
Malfunction
14.Water not draining.
Indicator Display
Flow
(High, Medium or Low)
Cause/Rectification
Switch on the electrical
supply at the mains and test
the Shower Drain Pump (see
Whale Shower Drain Pump
Installation Guide).
a. If pump is operating there is a
signal problem from the Mira
Advance ATL. Refer to "To
Contact Us" on the back page
of this guide.
b. If pump is not operating
there is a problem with the
drain pump or power supply.
Refer to the Whale Pump
manufacturer's installation
guide for further customer
support.
33
MAINTENANCE
1. General
Refer to section: "Important Safety Information" first.
Providing the shower has been correctly installed and is operated in accordance
with the instructions contained in this guide, difficulties should not arise. If any
maintenance is required then it must be carried out by a competent tradesperson for
whom the maintenance instructions are provided. Before replacing any parts make
sure that the underlying cause of the malfunction has been resolved.
Warning! There are no user serviceable components beneath the cover of the
appliance. Only a competent tradesperson should remove the cover.
2. Cleaning
2.1 Many household cleaners contain abrasives and chemical substances, and
should not be used for cleaning plated or plastic fittings. These finishes should
be cleaned with a mild washing up detergent or soap solution, and then wiped
dry using a soft cloth.
2.2 Spray pattern deterioration can be caused by either, debris trapped in the spray
head, or a limescale build-up in the spray holes. The spray head can be removed
and cleaned in a proprietary plastic kettle descalant, following the manufacturer's
instructions.
2.3 To clean the head or spray plate, please refer to the appropriate section in the
Installation and User Guide which accompanies the shower fittings.
2.4 Inlet Filter
Warning! Isolate the electrical and water supplies before removing the cover.
2.4.1 Remove the Cover, refer
to section: "Maintenance,
3. Cover, Removal and
Reassembly".
2.4.2 Remove the Inlet Shield.
2.4.3 Hold a wrench across the
flats of the Inlet Connector
Assembly to prevent damage,
and unscrew the Inlet Filter.
2.4.4 Pull out and clean or renew
the Inlet Filter.
2.4.5 Refit in reverse order. Make
sure that the Inlet Filter is
screwed fully home and check
for leaks.
34
Transformer
Connector
Lead Socket
Thermal Switch
Flow Valve
Solenoid
Connector
Lead Socket
Element Assembly
Relay Board
Clip (secures
thermal switch)
Pump Signal
Cable
(Standard Extra
and Flex Extra
models only)
Tank Assembly Sensor
13-Way
Multi-Connector
Lead Socket
Note: The Connector Lead
Sockets for the Flow Valve
Turbine and Inlet Sensor,
and the Tank Assembly
Sensor are under the 13-Way
Multi-Connector
Drain Pump Board
(Standard Extra and
Flex Extra models only)
Terminal Block
Air Bleed
Button
Transformer
Flow Valve
13-Way
Multi-Connector
Inlet Shield
Inlet Clamp
Wire 75 Earth
Tank Assembly
Outlet
Connector
Mira Advance ATL
Flow Valve
Turbine and
Inlet Sensor
(Standard Extra and Flex Extra models shown)
35
3. Cover
Warning! Isolate Electrical and Water supplies before removing the cover.
Temperature
5
4
Serial No. ASHMEAD
Mira Advance 8.7M
240V ~ 8.7kW
230V ~ 8.0kW
0.5 - 10 BAR
7
3
OPEN OUTLET 0 BAR
IP34
Caradon Mira Ltd. Cheltenham GL52 5EP
8
2
9
1
Low
INLET
Stop
Reset
Low Pressure
13-Way Multi-Connector
Reassembly
3.4 Connect the 13-Way Multi-Connector
to the Socket on the Control PCB. The
13-Way Multi-Connector lead plug is
a one way fit into the socket and must
be pushed fully home.
3.5 Refit the Cover by locating the top of
the cover onto the location strip on top
of the case. Make sure that the 13Way Multi-Connector lead is seated
between the Tank Assembly and the
left-hand side of the Case.
3.6 Push the bottom of the Cover against
the case until it locates correctly.
Refit and tighten the Cover Retaining
Screw.
36
Control PCB
DANGER
Medium
- TO MAINTAIN SAFETY THIS PART MUST
BE FITTED AND THE EARTH BONDING
WIRE REMAIN ATTACHED TO THE INLET.
Flow
High
IMPORTANT - RESIST TURNING OF THE INLET WITH A
SPANNER WHEN CONNECTING THE
SUPPLY PIPE OR CLEANING THE FILTER.
Removal
3.1 Unscrew the Cover Retaining Screw
from the bottom of Case.
3.2 Carefully pull the bottom of the Cover
outwards and upwards off the Case.
Caution! Do not strain the 13-Way
Multi-Connector.
3.3 Carefully, remove the 13-Way
Multi-Connector from the socket on
the Control PCB in the Cover.
4. Relay Board
Replacement
4.1 Remove the Cover, refer to section: "Maintenance, 3. Cover, Removal and
Reassembly".
Important! Make a note of the wire positions and routing.
4.2 Remove all of the Plug-in Connectors from the Relay Board.
4.3 Remove the Terminal Block Cover Retaining Screw and remove the Terminal
Block Cover.
4.4 Remove the Wires to the Element Assembly.
4.5 Remove the two Earth Fly Leads.
4.6 Remove the Relay Board Retaining Screws.
4.7 Remove and discard the Relay Board.
4.8 Fit the new Relay Board in the reverse order.
Warning! Make sure all electrical connections are securely tightened and
correctly routed.
5. Transformer
Replacement
5.1 Remove the Cover, refer to section: "Maintenance, 3. Cover, Removal and
Reassembly".
Important! Make a note of the wire positions and routing.
5.2 Remove all of the Plug-in Connectors from the Relay Board.
5.3 Remove the Terminal Block Cover Retaining Screw and remove the Terminal
Block Cover.
5.4 Remove the Wires to the Element Assembly.
5.5 Remove the two Earth Fly Leads.
5.6 Remove the Relay Board Retaining Screws.
5.7 Remove the Relay Board.
5.8 Remove the Thermal Switch from the clip at the top of the Tank Assembly.
5.9 Remove the Transformer Retaining Screw and remove and discard the
Transformer.
5.10 Fit the new Transformer in the reverse order.
Warning! Make sure all electrical connections are securely tightened and
correctly routed.
6. Inlet Connector Assembly
Replacement
6.1 Remove the Cover, refer to section: "Maintenance, 3. Cover, Removal and
Reassembly".
37
6.2
6.3
6.4
6.5
6.6
Remove the Inlet Shield.
Remove the Earth Bonding Screw and Wire.
Remove the Inlet Clamp Retaining Screws and remove the Inlet Clamp.
Undo the Compression Nut, remove and discard the Inlet Connector.
Fit the new Inlet Connector in the reverse order.
Warning! Make sure that the Earth Bonding Wire is fitted and securely
tightened.
7. Flow Valve
Replacement
7.1 Remove the Cover, refer to section: "Maintenance, 3. Cover, Removal and
Reassembly".
Important! Make a note of the wire positions and routing.
7.2 Remove the Shower Hose.
7.3 Remove the Inlet Shield.
7.4 Remove the Hose Outlet Connector Retaining Screw.
7.5 Locate the release tab for the Hose Outlet Connector (underneath the metal
clip on the flexible outlet pipe).
7.6. Rest a screwdriver on the interconnecting pipe to the Flow Valve. Gently lever
the tab upwards.
Caution! Do not try and force the Outlet Connector off by hand.
7.7 Move the Flexible Outlet Pipe away to the right of the Flow Valve.
7.8 Lift and partially separate the Flow Valve from the outlet of the Heater Tank
Assembly. Allow the water to drain out of the bottom of Mira Advance ATL.
7.9 Remove the Flow Valve Turbine and Inlet Sensor Connector Lead (5 wires)
from the Relay Board.
7.10 Remove the Flow Valve Solenoid Connector Lead (2 wires) from the Relay
Board.
7.11 Remove the Inlet Clamp Retaining Screws and remove the Inlet Clamp.
7.12 Separate the Flow Valve from the Tank Assembly and Inlet Connector and
discard.
7.13 Replace the Inlet Filter, refer to Section: "Maintenance, 2.4 Inlet Filter".
7.14 Fit the new Flow Valve in the reverse order.
Warning! Make sure all electrical connections are securely tightened and
correctly routed.
7.15 Reprime the appliance, refer to Section: "Installation, Priming The Mira
Advance ATL".
7.16 Recommission the Mira Advance ATL, refer to section: "Commissioning".
38
8. Tank Assembly
Replacement
8.1 Refer to section: "7. Flow Valve" and follow instructions 7.1 to 7.8.
8.2 Remove the Earth Bonding Screw and Wire from the Outlet Connector.
8.3 Remove the Tank Assembly Connector Lead (2 wires) from the Relay Board
and remove the Thermal Switch from the clip.
8.4 Remove the Inlet Clamp Retaining Screws and remove the Inlet Clamp.
8.5 Separate the Tank Assembly from the Flow Valve and discard.
8.6 Fit the new Tank Assembly in reverse order.
Warning! Make sure all electrical connections are securely tightened and
correctly routed.
Note! When fitting the Earth Wire to the Outlet Connector, fully tighten the
Shower Hose first to make sure that the seal inside the Outlet Connector is fully
compressed.
8.7 Recommission the Mira Advance ATL, refer to section: "Commissioning".
9. Drain Pump Driver Board
Replacement
9.1 Remove the Cover, refer to section: "Maintenance, 3. Cover, Removal and
Reassembly".
Important! Make a note of the wire positions and routing.
9.2 Remove all of the Plug-in Connectors from The Pump Driver Board.
9.3 Remove the Pump Board Retaining Screw and Washer.
9.4 If necessary, replace the PCB Insulator and Washer.
9.5 Replace the Pump Board.
9.6 If necessary, replace the 2-way Signal Cable and/or the 5-way Sensor Cable.
Note: If replacing the Signal Cable it will be necessary to remove the Transformer.
Refer to section: "Maintenance, 5. Transformer, Replacement".
9.7 Recommission the Mira Advance ATL and the Whale Shower Drain Pump, refer
to section "Commissioning".
39
WIRING DIAGRAM
PL1
(78)
PL2
PL11
N
L
Terminal Block
Inlet
Outlet
Plumbing
Connectors
Red
One Shot
Thermal Switch
Inlet Sensor
Brown
Outlet
Temperature
Sensor
Green/Y
(75)
Solenoid Valve
PL12
Transformer
E
PL5
PL4
PL1
PL8
PL3
PL7
PL10
PL6
Relay
Board
Double Pole Switch
45A Break Capacity
3 mm Contact Separation
Main Control Board
Green/Yellow
Blue
Brown
PL2
Temperature
Potentiometer
230/240 V
AC Only
Pump Driver
Board
Heater Tank
(fitted to Standard Extra and Flex Extra models only)
40
NOTES
41
SPARE PARTS
405 50
405 56
405 58
406 19
406 20
406 22
406 25
406 27
406 28
406 46
406 88
430 40
430 45
430 60
430 61
430 62
430 63
430 64
430 65
1566.087
Inlet Sensor
13-Way Multi-Connector
Inlet Connector Assembly
Tank Assembly 9 kW/230 V 9.8 kW/240 V
Tank Assembly 8 kW/230 V 8.7 kW/240 V
Transformer
Seal Pack (components identified "A")
Inlet Filter
Component Pack (components identified "B")
Terminal Block
Relay Board and Earth Wire
Top Case Insert
Service Tunnel (Inlet Shield)
Control PCB - Standard and Flex models only
Control PCB - Memory model only
Cover Assembly - Standard model only
Cover Assembly - Memory model only
Cover Assembly - Flex model only
Flow Valve Assembly (components identified "C")
Drain Pump Driver Board Assembly
ACCESSORIES
DCV-H: An outlet double check valve, designed to prevent the backflow or
backsiphonage of potentially contaminated water, through shower controls which are
fitted with a flexible hose as part of the outlet shower fitting. Available as an optional
accessory from all Mira Showers stockists.
42
430 40
B
B
406 88
406 46
430 62
430 63
430 64
405 56
1566.087
B
406 22
1566.087
B
430 45
430 60
430 61
C
A,C
406 27
405 58
406 19
406 20
B
A,C
405 50 A,C
C
406 88
43
406 88
CUSTOMER SERVICE
UKAS
1062889-W2-B (1566) (J87A-R)
44
© Kohler Mira Limited, November
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