Lincat WMB5F/B Owner's manual

IS 769 ECN 4688 Page 1 of 13
Installation, Operating and Servicing
Instructions
Wall Mounted Water Boiler
WMB5F/B, WMB5F/W, WMB7F/B &
WMB7F/W
Please make a note of your product details for
future use:
Date Purchased:_________________________
Model Number:__________________________
Serial Number:__________________________
Dealer:_________________________________
_______________________________________

IS 769 ECN 4688 Page 2 of 13
CONTENTS
Important Information
2
Warnings and Precautions
3
Technical Data
3
Checklist of Enclosures
3
Installation and Commissioning
3-5
Operating Instructions
5-8
Cleaning
8-9
Servicing, Maintenance and Component Replacement
10
Fault Finding
10
Spare Parts List
11
Accessories
11
Service Information and Guarantee
12
IMPORTANT INFORMATION
Read these instructions carefully before using this product, paying particular
attention to all sections that carry warning symbols, caution symbols and notices.
Ensure that these are understood at all times.
WARNING!
This symbol is used whenever there is a risk of personal injury.
CAUTION!
This symbol is used whenever there is a risk of damaging your Lincat product.
NOTE:
This symbol is used to provide additional information, hints and tips.
KEEP THIS MANUAL FOR FUTURE REFERENCE

IS 769 ECN 4688 Page 3 of 13
WARNINGS AND PRECAUTIONS
This appliance must be installed, commissioned and serviced by a qualified person
in accordance with national and local regulations in force in the country of
installation.
If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified person.
Ensure that the plug/socket is accessible at all times.
Strip plastic coating and clean the appliance before use.
During operation parts may become hot - avoid accidental contact.
Disconnect this appliance before servicing, maintenance or cleaning.
This appliance is not suitable for outdoor use.
TECHNICAL DATA
Model
Height (mm)
Width (mm)
Depth (mm)
Weight (kg)
WMB5F/B/W
462
340
184
9.5
WMB7F/B/W
462
340
224
10.1
CHECK LIST OF ENCLOSURES
Warranty card
Instructions manual
44mm diameter rubber grommet
INSTALLATION AND COMMISSIONING
This appliance must be earthed.
An equipotential bonding terminal is provided to allow cross bonding with other
equipment.
No supply cable or connection hose is supplied with this appliance.

IS 769 ECN 4688 Page 4 of 13
If replacing the plug connect the terminals as follows:
Green and Yellow wire Earth E
Blue wire Neutral N
Brown wire Live L
Means of isolation with at least 3mm contact separation in all poles must be
incorporated into the fixed wiring of this appliance.
The fixed wiring insulation must be protected by insulated sleeving having a
temperature rating of at least 60°C.
Supply cords shall be oil resistant, sheathed flexible cable not lighter than ordinary
polychloroprene or equivalent elastomer sheathed cord (code 60245 IEC 57)
Do not re-use old hose sets.
Wall installation
The boiler must be installed on a vertical concrete/brick wall with the base in a
horizontal position. The location must be frost free.
Using the drawing on page 13, mark the position of the mounting holes. Drill the
holes and insert suitable wall plugs.
Remove the glass front /outer body of the boiler by firstly removing the tap, circlip
and nut. Remove the screw holding the lower centre trim and remove the centre
trim. Finally remove the screw in the top front of the lid and then slide the glass and
body assembly up and lift away from the appliance.
Secure the boiler to the wall using 5mm (10g) screws.
Please allow 400mm clear space above the unit to allow removal of the cover and
300mm below the unit to allow for filter removal.
Electrical installation
The appliance is supplied with a terminal block suitable for flexible wires up to
6mm2. Cables may either be threaded through the cut out in the back panel, or via
a 20mm diameter glanded bush in the base after removing the smaller knock out
panel (Fig 1 B).
Connection sequence is:
E Earth Green/Yellow Right terminal
N Neutral Live Centre terminal
L Live Brown Left terminal
Power Ratings
Model
kW
Amps
WMB5F/B/W
3.0
13.0
WMB7F/B/W

IS 769 ECN 4688 Page 5 of 13
Water Installation
Connection hoses may either be fed through the cutout in the back panel or via the
larger of the two knock out panels (Fig 1 A). A blank rubber grommet is supplied
and should be cut to fit around the feed pipe and fitted into the appliance base to
seal it.
The inlet connection point on the inlet solenoid valve is ¾” BSP and should be
connected to the mains water supply via an accessible isolating tap.
Connect the condensate/overflow pipe (Fig 1 F) to a suitable drain, considering any
applicable local water regulations. If required, the internal pipe may be
disconnected from the external connector and the pipe extended to pass through
the cutout in the back panel and connected to a suitable drain.
Ambient temp Deg C
Water inlet pressure
Bar
Water inlet pressure kPa
5 to 30
1 to 8
100 to 800
Turn on the water supply and check for leaks before refitting the outer cover in a
reversal of the removal procedure.
OPERATING INSTRUCTIONS
Only qualified or trained personnel should use this appliance.
First Use
Switch on both mains water and electricity supplies and leave the boiler for 15
minutes to fill completely.
Drain off approximately 3 litres of water to remove any loose carbon particles from
the filter.
Regular operation
The appliance starts automatically shortly after the electrical supply is turned on,
filling with water and heating. To ensure that water is always hot, only small
quantities are added constantly during the heating cycle. The appliance is designed
to be left on permanently, only to be turned off for descaling or maintenance.

IS 769 ECN 4688 Page 6 of 13
Adjustment - water temperature, screen backlight and contrast.
Fig 1
Consult Fig 1.
Turn power off at the mains for 5 seconds and then back on again. When the
‘Filterflow’ screen is displayed, press and hold the power button (D) until the

IS 769 ECN 4688 Page 7 of 13
software version is displayed. Press the function button Fn (E) and the temperature
will be displayed.
Press the power button to cycle through the values 70° to 96°C. Press the Fn
button to select the required value.
The backlight adjustment screen is displayed next. Press the power button to cycle
through the values 1 to 25. Press the Fn button to select the required value.
The contrast adjustment screen is displayed next. Press the power button to cycle
through the values 35 to 60. Press the Fn button to select the required value.
Press the power button to exit.
Standby
If the appliance is to be left unused for any length of time, turn the element off by
pressing the power button.
Filter replacement
The filter display shows the estimated life left in the filter cartridge (Fig 2). A
reminder message is displayed when the filter needs changing. The boiler can be
used without a filter but scale will quickly build up and water taste may be affected.
Fig 2
To replace the filter
Twist the base of the filter 90° to the left and carefully lower the filter cartridge out of
the appliance. It will contain a small volume of water.
Remove the black cap and place it on the new filter.
Re-insert the filter into the recess and lock into place by twisting to the right.
Press and hold the Fn button for 5 seconds to reset the filter life.
FILTER
READY
STANDBY
CLEAR
CHANGE
FILTER

IS 769 ECN 4688 Page 8 of 13
Drain off approximately 3 litres of water to remove any loose carbon particles from
the filter.
CLEANING
Do not use a water jet or steam cleaner, and do not immerse this appliance.
Clean all panels with warm water and mild detergent, do not use abrasive
materials. Dry with a soft cloth.
Wipe the dispensing nozzle daily to remove limescale deposits.
De-scaling
The boiler should be de-scaled regularly to maintain efficient operation and water
quality. The frequency depends on the hardness of the water and the timely
replacement of the filter.
The de-scaling procedure must be performed by trained personnel as it
requires the removal of panels from the boiler giving access to live electrical
components.
De-scaling the boiler at the end of the working day gives the de-scaling agent
several hours to work. Lincat recommend our own de-scaling agent MS19,
available from our Spares department.
Wear protective clothing.
Isolate the boiler from the electrical supply.
Turn off the power and allow the water to cool to 60°C.
Using a 3mm Allen key, remove the screw in the top of the boiler and remove the
boiler outer body.
Remove the insulation from the top of the tank, then unscrew and remove the tank
lid.
Add the de-scaling agent slowly to avoid eruption of the water. Follow the
manufacturer’s instructions.
Replace the tank lid and outer body. Attach an ‘Out of Use’ notice to the boiler to
prevent use during de-scaling.
Turn on the electricity and allow the boiler to run normally for 30 minutes. Isolate
the boiler and allow the water to cool.
Remove the outer body and tank lid and inspect the tank and level sensor housings
for scale deposits. If necessary, repeat the de-scaling process.

IS 769 ECN 4688 Page 9 of 13
Drain and flush all de-scaling agent from the tank completely as follows:
Unscrew the drain plug (beneath the grommet –Fig 1 G) using a 24mm spanner to
hold the plug and a 21mm socket on a ratchet (Fig 3) to remove it from the bottom
of the tank. Drain all the water out.
Fig 3
Flush out the tank with clean water.
When empty, replace the drain plug and replace the grommet.
Replace the tank lid, ensuring the gasket seals the top of the tank correctly.
Refit the outer cover and turn the boiler on.

IS 769 ECN 4688 Page 10 of 13
SERVICING, MAINTENANCE AND
COMPONENT REPLACEMENT
All servicing, maintenance and component replacement on this appliance should be
carried out by one of our recommended service engineers.
The control panel displays information that can help with fault diagnosis. Before
calling for service, draw off a litre of water, clear the fault code by pressing the Fn
button and turn the boiler off and on again at the supply. If the fault persists, call
service for advice.
Message displayed
Possible causes
Corrective action
Scale on level sensors
Boiler overfilling
Descale
Check water inlet
valve
Water turned off
Inlet hose kinked or
blocked
Water pressure too high
or low
Drain valve open
Boil dry/overheat
protector tripped
Temperature sensor fault
Element failed
PCB fault
Faulty or loose
connection
Check water supply
and drain valve
Call service if fault
persists
Temperature sensor fault
Call service
FAULT FINDING
FILTER
DESCALE
STANDBY
CLEAR
CAUTION
SEE MANUAL
FILTER
NO WATER
STANDBY
CLEAR
FAULT
SEE MANUAL
FILTER
NOT HEATING
STANDBY
CLEAR
FAULT
SEE MANUAL
FILTER
THERMISTOR
STANDBY
FAULT
SEE MANUAL

IS 769 ECN 4688 Page 11 of 13
Part Number
Description
Used on
CO252
Compression stop end
ALL
EL277
Element
FH02
Filter head only
GA86
Tank gasket
WMB5F/B/W
GA87
Tank gasket
WMB7F/B/W
GF05
Glass front
ALL
LE47
Level sensor insulator
LE48
Upper level sensor
LE51
Lower level sensor
PR73
Circuit board
SI01
Sensor isolator
SL20
Tap nut
SL21
Tap circlip
SL34
Tap body
SO24
Solenoid
SW88
Momentary switch
TE40
Terminal block
TH87
95° cutout
TH88
120° cutout
TH98
Thermistor
Part Number
Description
DR72
Drip tray –WMB5F/B/W
DR98
Drip tray –WMB7F/B/W
FC02
Filter cartridge
DP10
De-scaler
SPARE PARTS LIST
ACCESSORIES

IS 769 ECN 4688 Page 12 of 13
For help with the installation, maintenance and use of your Lincat equipment,
please contact our service department:
UK: 01522 875520
For non-UK customers, please contact your local Lincat dealer
All service work, other than routine cleaning should be carried out by one of our
authorised service agents. We cannot accept responsibility for work carried out by
other persons.
To ensure your service enquiry is handled as efficiently as possible, please tell us:
Brief details of the problem
Product code
All available on serial plate
Type number
Serial number
Lincat reserve the right to carry out any work under warranty, given reasonable
access to the appliance, during normal working hours, Monday to Friday, 08:30 to
17:00.
GUARANTEE
This unit carries a comprehensive UK mainland 2 year warranty. The guarantee is
in addition to, and does not diminish your statutory or legal rights.
The guarantee does not cover:
Accidental damage, misuse or use not in accordance with the manufacturer’s
instructions
Consumable items (such as filters, glass, bulbs, slot toaster elements and door
seals.)
Damage due to incorrect installation, modification, unauthorised service work or
damage due to scale, food debris build-up, etc.
The manufacturer disclaims any liability for incidental, or consequential damages.
Attendance is based on reasonable access to the appliance to allow the authorised
technician to carry out the warranty work.
Service calls to equipment under warranty will be carried out in accordance with the
conditions of sale. Unless otherwise specified, a maximum of 15 minutes of
administrative time, not spent directly carrying out servicing work, is provided for
within the warranty. Any requirement for staff attending the call to spend greater time
than 15 minutes due to administrative requirements, such as on health and safety risk
assessments, will be chargeable at the prevailing rate.
SERVICE INFORMATION

IS 769 ECN 4688 Page 13 of 13
Wall mount position
330
29017.5 17.5
130
410
FIXING CRS
FIXING CRS
11.5
FIXING CRS
BODY