Instanta Barista Pro SW Series User manual

The Professionals Choice
SW Series
Barista Pro Counter Top Steam & Water Boiler
British Manufacturing
since 1957

1
INSTANTA LIMITED
S E R V I C E M A N U A L
ISSUE: 3- Dated: Nov 2016
“SW” SERIES
AUTOMATIC FILL, COUNTER-TOP PRESSURISED STEAM & WATER BOILERS
CONTENTS
Section: Page No:
Contents p.1
Introduction p.2
Installation p.2
Principle of Operation (Daily Use) p.3
1 .0 Technical Specifications p.4
2.0 The Boiler p.4
3.0 The Safety Valve p.4
4.0 The anti-Vacuum & Air release Valve p.4-5
5.0 Water and Steam Syphon Pipes p.5
6.0 Pressure-switches p.5
7.0 Heating Elements p.6
8.0 Triac(s) p.6
9.0 Printed Circuit Boards p.6-7
10.0 The Sensing Probes p.7
11.0 Water Inlet (Solenoid, Pressure-reduction
& Non-return valve p.7-8
12.0 Water Draw-off Taps p.8-9
13.0 Steam Wand & Water Dispense Arm p.9-10
14.0 De-scaling p.10
15.0 Fault-Finding p.11
16.0 Warning Messages p.12
17.0 Exploded Drawing & Key p.13-14
Drawing of Water Inlet Assembly p.15
Drawing of High-Pressure Tap p.16
Tank & Components p17
Wiring Diagrams p.18-20

2
INTRODUCTION:
The “Barista Pro” series of pressurised cafe boilers were introduced in March 1996 and won the
CEDA award for Best Commercial Catering Equipment the same year. They are designed to be
stylish in appearance but simple to service. This manual has been designed to be a guide for
service engineers. It includes descriptions of all serviceable parts and an exploded drawing of a
complete machine, sub-assemblies and wiring diagrams.
The “Barista Pro” series are inspected and tested in accordance with the company’s ISO9001
Quality Management System and ISO14001 Environmental Management System and conform
with the protection requirements of the following standards and specifications:
EMC W89/336/EEC Electro-Magnetic Compatibility (EMC)
EN 50-081-2 Generic Emission
EN 50-082-2 Generic Immunity
ROHS Manufactured in compliance with the requirements of the RoHS Directive
WRAS Manufactured in compliance with the requirements of the UK Water
Regulations/Bylaws
The two models in this range are the same construction, but vary in electrical power rating.
INSTALLATION:
IMPORTANT
To ensure that the unit works to its full potential, you will require water pressure of at least 30psi
(2 Bar). If this is not possible, a pump should be fitted.
Having ensured that the incoming water pressure is adequate, follow these simple instructions:
1. Provide a suitable stop-cock to isolate the machine for maintenance when needed
2. Connect the water between the stop-cock and the boiler using the food quality hose
provided. (do not use red or blue washing machine hoses as these will contaminate the
water)
ELECTRICAL SUPPLY
3. The 3kW model is fitted with a 13amp plug and should be plugged into a suitable socket.
The 6kW model should be wired into a 30amp switched supply with an ELCB. (Only a
suitable electrician should undertake this work)
COMMISSIONING
4. Open the steam tap on the left hand side of the unit
5. Switch on using the switch on the front panel. The power light will illuminate and water
will start to enter the boiler. Once the bottom level sensor is reached. the unit will then
start to heat. When the water boils, steam will start to come from the steam nozzle. The
steam tap can then be closed.
6. The pressure in the boiler will start to rise and the needle in the gauge will respond. When
the needle reaches the pre-set pressure, the ready light will illuminate and the boiler will
start to fill and heat until it reached the high level sensor. The boiler is then ready to use.

3
7. If the red service light flashes four times, then pauses and repeats, the incoming water
pressure to the unit is too high. This can be adjusted using the internal pressure reduction
valve. Ring Instanta’s technical help line for advice – 01704 502911
8. If the red service light flashes five times, pauses and repeats, the incoming water pressure
is too low. This can be adjusted using the internal pressure reduction valve or an external
pump may have to be fitted. Ring Instanta’s technical help line for advice – 01704 502911
PRINCIPLE OF OPERATION:
Both models are automatic fill. From switch on (initial commissioning), the machine is
programmed to check for the presence of water via a system of three level sensors. With
no water present, an inlet valve is energised to prime the boiler. Once primed, power is
transferred to the heating element(s) thus heating the water until it boils and begins to
pressurise. When the pressure, controlled via a factory-set pressure switch, reaches its
normal operating limit (14 psi), a signal is sent to a microprocessor, which in-turn, opens
an inlet valve. Water enters the boiler in short bursts until the pressure inside the vessel
reduces to approximately 10p.s.i. The heating element(s) remain on while the inlet valve is
energised maximising the products efficiency and performance characteristics. The
heat/fill cycle continues until the level in the pressure vessel reaches a top operating
sensor. Thereafter the machine goes into "idle" mode, pulsing the heating element
periodically to maintain the pressure. Boiling Water or Steam can be manually dispensed
via the taps on the front of the unit. When the volume of stored water in the vessel
reduces, this is picked up via the top operating sensor and the unit reverts back to
"heat/fill" mode thus maintaining a constant supply of boiling water and steam.
DAILY USE
Follow instruction 4 to 6 above. Venting the boiler using the steam tap should be done every time
the unit is switched on from cold.
1.0 - TECHNICAL SPECIFICATION:
SW13 (WB-2)
Voltage: 230V single-phase 50/60Hz
Supply: AC
Rated Input: 3.0kW
Avg. Power Consumption: 0.20 (kw/hour - standby)
Fill Type: Automatic Fill
Mains Water Pressure: 2.0 – 7.0 bar
Normal Working Pressure: 14psi (0.96bar)
Over-ride Safety Cut-out: 18psi (1.24bar)
Safety Valve Set Pressure: 25psi (1.8bar)
Max Design Pressure: 2.0bar
Hydraulic Test Pressure: 3.0bar
Recovery per Minute: 0.45 Litres
Rapid Draw-off: 13.0 litres (23 pints)
Heat-up time: 51 minutes (from cold to full capacity)
Height: 565 mm
Width: 345 mm
Depth: 420 mm (plus 165mm for drip-tray)

4
SW13/6 (WB-2/6KW)
Voltage: 230V single-phase 50/60Hz
Supply: AC
Rated Input: 6.0kW
Avg. Power Consumption: 0.20 (kw/hour - standby)
Fill Type: Automatic Fill
Mains Water Pressure: 2.0 – 7.0 bar
Normal Working Pressure: 14psi (0.96bar)
Over-ride Safety Cut-out: 18psi (1.24bar)
Safety Valve Set Pressure: 25psi (1.8bar)
Max Design Pressure: 2.0bar
Hydraulic Test Pressure: 3.0bar
Recovery per Minute: 1.0 Litre
Rapid Draw-off: 13.0 litres (23 pints)
Heat-up time: 27 minutes (from cold to full capacity)
Height: 565 mm
Width: 345 mm
Depth: 640 mm (220mm for drip-tray)
2.0 - THE BOILER:
The boiler is made from Duplex Stainless Steel and has a design pressure of 2 bar (28 p.s.i.), and is
tested to withstand a maximum pressure of 3 bar (42 p.s.i.). The working pressure is 1 bar (14
p.s.i.).
The boiler top-lid plate is made from stainless steel and secured using M8 high-grade 316
stainless steel bolts. It is sealed with a WRAS approved fibre-gasket.
The boiler should be examined annually for any irregularities by a qualified person.
3.0 - SAFETY VALVE:
The boiler is fitted with a safety valve which has a set blow-off pressure of 1.8 bar (25 p.s.i.). The
safety valve is the final safety device should there be a machine-fault and the over-ride safety
switch fail.
This valve is sealed and must not be tampered with. In the case of leaks it should be replaced. The
valve should be checked annually by a qualified person.
4.0 - ANTI-VACUUM & AIR RELEASE VALVE:
An anti-vacuum valve is fitted into the boiler-top cover plate. This has a spindle or a ball
(dependant on age of boiler) which opens when the pressure drops to zero. This lets air out of the
boiler during initial heat up, and air into the boiler when it has cooled down to prevent a vacuum
forming. A vacuum can lead to back-syphoning and subsequent contamination of the boiler.
It is normal for very small, occasional wisps of steam to be omitted from the valve during normal
operation. If however, the valve is leaking steam continually and/or causing internal panels or
other components to become wet, then it requires attention.

5
Leaks on the anti-vacuum valves are usually caused by lime-scale on the ball/spindle or a
deterioration of “O” ring-seal (later models supplied from: Jan 2005 onwards). Replace “O” ring or
complete valve as necessary.
5.0 - SYPHON PIPES (Water & Steam):
a. Steam:
The steam syphon pipe is connected to the steam draw-off tap via a flexible braided hose
assembly. It is welded inside the boiler. This pipe should never scale up.
b. Water:
The water syphon pipe is connected to the water draw-off tap via a flexible braided hose
assembly. It is a straight pipe made from brass tube which points vertically down inside the boiler.
The length of the water syphon tube is important as it governs the amount of water that can be
drawn-off from inside the boiler.
Because the water syphon pipe is in contact with the boiling water, it can become coated in lime-
scale and consequently may need to be cleaned or de-scaled periodically.
6.0 – PRESSURE-SWITCHES:
There are two pressure-switches on these machines, situated on a bracket behind the tap bodies.
They are factory set and normally will not need adjustment. If replacing the switches they must be
adjusted to the correct working pressure by the adjusting screw on the switch. Before adjustment,
release the pressure too below the required set pressure.
1. The pressure-switch on the left, marked “M” or Mains (orange wires), is the normal
operating pressure-switch and is set at 1-bar (14 p.s.i.)
2. The pressure-stat on the right, marked “O” or Override, (purple wires) is the override
pressure-switch and is set to 1.28 bar (18 p.s.i.).
The Over-ride pressure-switch only comes into operation if one of the following happens:
a. The “Main” pressure-switch fails or drifts out of calibration.
b. The Triac has failed in the closed position (causing heater(s) to remain on).
c. The in-coming mains-water pressure is too low or has been restricted/blocked or
accidentally turned-off.
d. A wire has shorted.
e. The Main pressure-switch capillary tube is blocked.
If any of the above conditions occur, pressure within the boiler will rise above the normal
operating set-point (14 p.s.i.) and activate the over-ride pressure-switch (set @ 18 p.s.i.). The
over-ride would then switch power to the machine off via the safety-trip P.C.B. If this happens all
the indicator-lights will go out.
NOTE: Machines supplied before May 2000 also had a high-water pressure-stat situated in the
top-rear of the machine. This p/stat was there to switch off power to the machine if the incoming
mains-water pressure exceeded 7 bar (100 p.s.i.). Models supplied from May 2000 do not have
this feature.

6
7.0 - THE HEATING ELEMENT(S):
The heating elements are made from copper and are tin plated. The old type screw into the boiler
and are sealed by a WRAS-approved fibre gasket. The new type is sealed by an ‘O’ ring and P.T.F.E.
tape. The old element has a 2.27/64” hexagon head and the new type has a 75mm hexagon head.
The elements have a long life-expectancy but if they do need replacing, the front-panel and draw-
off taps need removing to gain access.
ELEMENT RATING: 3KW, 230V
RESISTENCE: Between 19 and 20 Ohms
AMPS: The elements will draw between 10 and 11 amps.
If the element has blown it will have an open circuit. To test use a simple PAT test.
8.0 – TRIAC:
The triac is a device used to switch the heating element on via a control signal (pink wire) from
the P.C.B. The triac generates heat, which has to be dissipated. This is done by bolting it to an
aluminium bracket using heat-sink compound between the surface of the triac and the aluminium
bracket.
There are 2 types of triac used on the “WB-2 Supreme” series:
XE851 - SW13 (3kw)
XE854 - SW13/6 (6kw)
NOTE: From Jan 2014 all 6kW units have 2 x XE851 triacs on. One for each element
If the triac fails, in 90% of cases it will fail in the closed position. This causes the heating
element(s) to remain on. If this happens, the machine will overheat and the pressure will rise and
activate the over-ride pressure-switch, which in-turn switches the machine off.
If the triac has failed in the closed position there will be continuity between the live element
terminal and the live into the triac (Grey wire 3kw & red wire 6kw).
To test if the triac has failed (closed circuit), leave machine plugged in and turn off at the ON/OFF
switch (front panel). If the machine continues to heat when switched off, the triac is faulty. If not,
refer to faultfinding “over-boiling”.
9.0 – PRINTED CIRCUIT BOARDS:
The Safety-Trip P.C.B. (FF851):
This P.C.B. (FF851) comes into operation when the over-ride pressure-stat activates. This will
switch the power to the machine off (all lights out). If this happens the machine can only be re-set
by switching the mains power supply to the machine off and back-on again - this clears the
P.C.B.’s memory.

7
The Main P.C.B. (FF850):
Operating Voltage: 190V – 265V AC @ 50Hz
Frequency Range: 47-65 Hz
Fuse Rating: 315mA 250V AC
Operating temp: 0–70^C
This P.C.B. (FF850) controls all the main functions of the machine, monitoring the water level,
pressure, water supply etc. If a fault is detected the user is warned via the service or ready L.E.D.
Some faults render the machine inoperative whilst others will only give warning flashes
10.0 THE SENSING PROBES:
Sensing probes are used to detect the presence of water within the boiler, using a small electrical
current to make a circuit via the water.
They are made-up from a PTFE insulator with a chrome-plated brass rod through the centre.
There are three level sensing probes inside the boiler:
1. Low-level Sensor - Yellow wire
2. Normal Operating Sensor - Black wire
3. Overfill detection Sensor - Orange wire
Common problem: Hard-water in some parts of the UK causes a build-up of lime-scale on the
sensing probes, which acts as an insulator (e.g. the sensor is no-longer able to detect the presence
of water). When the Normal operating sensor (black wire) becomes insulated, the water level will
switch to the Overfill detection sensor (orange wire) and the Red “service” light will flash 3 times.
11.0 - WATER INLET ASSEMBLY:
See Drawing of Water Inlet Line
The water inlet assembly is made up of many different parts. All pieces are sealed together with
NUTLOCK thread sealant. There are three main components in this line. These are described
below.
1. - Solenoid Valve:
The cold-water inlet valve can operate between 2 bar and 7 bar (28-96psi) mains pressure. It has a
2-litre per minute restrictor in to control the incoming water flow. If a valve without this restrictor
is used, it could cause the temperature to be lower than expected. The only serviceable part on
the valve is the coil. The coil is susceptible to water damage from steam or water leaks. The coil
has a small constant voltage to it which is normal. When energized, they should be 230V.
Disconnect boiler from electrical supply before replacing the solenoid valve.

8
1a. - Mains Water Pressure:
MAINS WATER PRESSURE RANGE: Between 2.0 and 7.0 bar (28 and 96psi)
Incoming mains water pressure can vary wildly from site to site and can also fluctuate dependent
on the time of day (water pressure often increases at night). In extreme cases, this can take the
mains water pressure outside that at which the boiler can operate. In-coming mains water
pressure of more than 100psi (7.0bar) can bypass the solenoid valve and cause an overflow
situation. In such circumstances, the Pressure Reduction Valve should be adjusted (see No: 2
below) to reduce the in-coming water pressure to a level that the machine can cope with.
Similarly very low mains water pressure (below 20psi) can also result in the solenoid valve being
bypassed - insufficient water pressure prevents the valve from seating correctly, although this is
much less common.
2. - Pressure Reduction Valve:
This valve is used to control the in-coming mains water pressure. It is factory-set but may need
on-site adjustment, dependant on the particular mains water pressure.
There have been two types of reduction valves used on this range of machines. These valves must
be fitted the correct way round - See arrow on valve body which shows direction of water flow.
Adjustment of in-coming mains water pressure:
Both the self-coloured brass valve and the silver valve can be adjusted by turning the slotted
adjustment screw or pulling up the black knob as follows:
Anti-clockwise: To decrease incoming water pressure.
Clock-wise: To Increase incoming water pressure
3. Non-Return Valve:
This valve lets water pass into the boiler, whilst not allowing back-pressure to escape from the
boiler. It must be fitted the correct way round - See arrow on valve body.
12.0 – WATER DRAW-OFF TAPS:
See Drawing OF Draw-off Tap
The tap washer and/or spring will occasionally require replacement.
To replace the tap washer (Part No.TP703):
Switch machine off.
Open steam tap to evacuate pressure from boiler
Unscrew tap bonnet and remove the upper tap assembly from the tap body.
Remove the old tap washer from the spindle and firmly push the new washer onto the spindle.
Screw the upper assembly back onto the tap body.

9
To replace the tap spring (Part No.TP1007/N):
Switch machine off.
Open steam tap to evacuate pressure from boiler.
Push the pin out of the tap handle.(the pin has a bend in the middle)
Unscrew the tap bonnet and remove the tap assembly from the tap body.
Replace broken tap spring(small diameter down)
Replace tap bonnet and handle.
13.0 – STEAM DISPENSE WAND and WATER DISPENSE ARM:
See Drawing of Draw-off Tap
Steam Dispense Wand:
The steam dispense wand is made from stainless steel and has a chromed-brass steam nozzle
attached to the end. It can be swivelled into different positions due to a ball-fitting, held within
the steam-wand coupling. The coupling screws onto the underside of the tap body using a thin
PTFE washer to form a seal. The ball-fitting rotates within the coupling and is held in position by
an “O” ring, a spring and brass retainer.
The most common problem is ware & tare on the “O” ring which if excessive, can allow steam to
escape through the coupling. Also, the spring can eventually ware or break causing the steam
wand to become “floppy”.
The “O” ring and/or the spring can be replaced by unscrewing the steam wand from the tap body
and stripping apart. Remove all traces of the worn “O” ring and clean the ball fitting before
putting back together with the new “O” ring.
IMPORTANT:To allow the ball-fitting to rotate smoothly, it is essential that both the ball-fitting
and the “O” ring and smeared with food-grade silicone grease (Pt No: LKT5), before re-connecting
the wand to the draw-off tap.
Water Dispense Arm:
See Drawing of Draw-off Tap
The water dispense arm is made from stainless steel and connects to the underside of the water
draw-off tap. It can be swivelled into different positions by unlocking the dispense-arm nut,
moving to the desired position and re-tightening the nut.
There is a white PTFE dispense arm washer which forms a water-tight seal, where the dispense
arm attaches to the tap body. Over time, the washer may ware and require replacement (see
drawing of Dispense Arm).

10
Aerator
A water spray assembly known as an “aerator” is attached to the end of the water arm. Its
purpose is to allow the user to dispense boiling water without excessive “splash-back”, which can
result from the force of pressurised boiling water entering the vessel – particularly a problem if
small containers/vessels are being used.
The main problems with the aerator are:
a. Symptom - The speed and force of the water has become severely restricted.
Problem: Lime-scale blocking the plastic strainer (inside the aerator-body).
b. Symptom - (Following removal of the aerator for cleaning) the machine is on-pressure and
full, but water does not dispense when tap is operated.
Problem: Plastic strainer (inside aerator-body) has been replaced the wrong way up. The
holes in the plastic strainer should point upwards not down.
14.0 - De-scaling (Including cleaning the level sensing probes):
Disconnect the machine from the power supply.
Remove the outer lid
Unscrew M8 bolts and remove boiler-top plate
Remove as much loose scale as possible by hand.
Use a good de-scaler such as “Renegite” (Part No. ACC303) to remove hard scale deposits. Mix
2-3 packets in hot water and pour into boiler. Leave for approximately 20 minutes.
There is a drain plug on the base of the boiler.
Flush boiler out with water, ensuring that all traces of de-scaler are removed before re-
assembly.
To de-scale the level sensing probes, disconnect probe wires and unscrew using a probe key.
Any hard scale coating on the probes should be cleaned off using a non-metallic scouring pad.
Rinse under cold water and replace.

11
15.0 - Fault Finding:
This section contains a list of faults and causes that the machine may encounter.
MACHINE
SYMPTOM
CAUSE
Dead
P.C.B. faulty (315mA fuse or transformer)
No mains input (installation problem or outside interference)
ON/OFF switch faulty
Unsound terminal connection
Blown fuses in plug (3kw)
Bad connection in plug (mains lead fault)
Over-ride pressure-
switch has switched power off to the
machine via the safety-trip P.C.B. (Symptom:
No lights on but
boiler is pressurised)
L.E.D.’s Flashing
See chart:
Overfilling
Water pressure too low or high
Contaminant sticking solenoid valve open
Not Filling
Blocked inlet assembly
Blocked filter in chromed water connector
Water turned off
Kinked inlet hose
Water pressure too low or high
Solenoid coil failed
Scaled up top probe
Top probe wire shorted out
Faulty element
No Draw Off
Tap spring broken
Tap washer broken
Aerator (water spray) has been fitted upside down
or requires
cleaning/de-scaling
If no pressure (See not heating)
Syphon pipe blocked
Over Boiling
(over pressure)
Pressure-switch set too high
Pressure-switch faulty
Triac faulty
Machine not filling
Machine scaled up
Faulty element
Not Heating
Pressure-switch faulty
Element faulty
Triac faulty
P.C.B. faulty
Unsound connection on element or triac
P.C.B. Blown
Steam (see over-boiling) or water damage
Element blown (315mA fuse on board)
Triac blown
Solenoid coil blown

12
16.0 - SERVICE WARNING CODES:
If the amber “Ready” light is flickering – either: mains-water pressure on the premises is low, the
water supply has been turned off or there is a scale build up. The light will stop when the water
has returned to normal.
NUMBER OF
FLASHES BETWEEN
PAUSES
MEANING
1
Water level sensor has scaled up at normal level and machine
has filled to higher level
2
Operating level sensor has been detected but other sensor has
not
3
Overfill level sensor has been detected but other sensor has
not
6
The boiler has failed to fill in the allotted time. Possible
causes:-
1. The water supply is turned off
2. The inlet valve has failed
3. the water inlet hose is kinked, blocked or detached
7
The element(s) have been on for too long with lower sensor
exposed. Possible leak, lime scale or broken probe wire
8
Pressure switch wire has shorted (wire A)
9
Pressure switch wire has shorted (wire B)
10
The element(s) have been trying to heat the water but have
failed to do so. The element(s) or control system have failed
11
Water supply is turned off and the low probe has become
exposed. Probable lime-
scale build up or water supply
problem

36
37
LID
35 34
33 32 31 30
29 38
27
P/SWITCH
MOUNTING 26
BRACKET 28
25 M O
24 23
12 ALUMINIUM
TRIAC PLATE
11
10
8
14 6
21 WATER 79
22 5
19
20
18
17 STEAM
4
13 23
16
15 1
D.19
Supreme 3 & 6

WB-2 Supreme Exploded Drawing Key
Drawing
No
Description
Part No
1
Heating element (3.0kw, 230V)
E280
2
Normal Operating Probe (Black wire)
PRB8/A
3
¼” to 3/8” Brass Adaptor
FV305
4
Brass probe holder c/w “Overfill” level sensor (orange wire)
PRB4/A
5
Safety valve (set to blow @ 25p.s.i.)
SV202
6
Anti-vacuum & air release valve
V600/B
7
Water syphon pipe
H/TUBE3
8
Low-level sensing probe (yellow wire)
PRB3/A
9
Brass Elbow
H/FF113
10
Triac
(used to switch power to heater(s) via a signal from PCB)
XE851
(3Kw)
XE854 (6Kw)
11
Brass “T” piece
H/FF122
12
Braided Water and Steam Pipes
H/FF387
13
Safety “Trip” P.C.B.
FF851
14
Main P.C.B.
FF850
15
Steam dispense wand
DA105/A
16
Upper tap handle assembly
TP801
17
Draw-off tap body - Steam
TP800/S
18
Grey plastic tap collar
XEN303/HT
19
Water dispense arm complete
DA104/A
20
Water “aerator” spray & adaptor
H/FF102 & H/FF101
21
Draw-off tap body - Water
TP800
22
Pressure gauge
PG11
23
ON/OFF switch
XEN400
24
Over-ride pressure-switch (purple wires)
EN266N
25
Mains pressure-switch (orange wires)
EN264N
26
Brass flare fitting for pressure switch
H/FF132N
27
Capillary tube(s) to pressure switches
E270B
28
Lower water inlet pipe (5/16” copper)
Ring Spares
29
½” to ¼” brass reducer
BV20
30
Pressure reduction valve
PR5
31
Solenoid inlet adapter
SA14/IN
32
Solenoid valve
SOL14
33
Solenoid outlet adapter
SA14/M
34
Non-return valve
NR52
35
½” to ¼” female adapter
B507
36
Brass Elbow
H/FF113
37
Upper water inlet pipe (5/16” copper)
Ring Spares
38
Complete Inlet Assembly
Ring Spares
Not
shown
6-hole tank gasket
8-hole tank gasket
13-hole tank gasket
B225
H/FF127
H/FF128

1
2A
2
3
4
5
6
7
8
8A
9
10
Note: Arrows show
direction of flow
SLOTTED ADJUSTMENT SCREW
(TURN CLOCKWISE TO INCREASE
INCOMING WATER FLOW.
ANTI-CLOCKWISE TO REDUCE)
1
2
2A
3
4
5
6
7
8
8A
9
10
Part No.
H/FF124/A
H/FF113
B507
NR52
SA14/OUT
SOL14
SA14/IN
PR5
H/FF113
B507
—
BV11/A/C
DESCRIPTION
UPPER WATER PIPE ASSEMBLY – BRAIDED
BRASS 1
/4" BSP ELBOW
1
/2" TO 1 /4" BRASS ADAPTOR
NON-RETURN VALVE
3/4" TO 1
/2" SOLENOID OUTLET ADAPTOR
SOLENOID VALVE
3/4" TO 1
/2" SOLENOID INLET ADAPTOR
PRESSURE REDUCTION VALVE
1
/4" BRASS BSP ELBOW
1
/2" TO 1 /4" BRASS ADAPTOR
LOWER WATER PIPE ASSEMBLY – 5/16"
3/4" WATER INLET FITTING
WATER INLET ASSEMBLY
Supreme 3 & 6
D.13/A – issue 4
DWG
No.

XEN303
B327
STAR WASHER
TP8 HIGH PRESSURE TAP
PLASTIC TAP COLLAR
305
UNION
BODY
TP801
TAP HANDLE
ASSEMBLY
TP703
TAP WASHER
CHROMED TAP BODY
Part Nos:
(for Steam Arm) TP800/S
(for Water Arm) TP800
XTP1053
TAP STEM
XTP802
90 TAP HANDLE
V103
‘O’ RING
TP702
TAP SPRING
TAP BONNET
HSPT100
TP 1030 TAP PIN
WATER DISPENSE
ARM ASSEMBLY.
DA104/A
STEAM DISPENSE
ARM ASSEMBLY.
DA105/A
Supreme 3 & 6
D.14

THE BOILER
‘T’ PIECE (P/STAT CAPILLARY TUBE)
SAFETY VALVE - 25 PSI
(SV202)
VACUUM VALVE
STEAM SYPHON PIPE
(SHOWN AFTER BEING BENT
INTO THE CORRECT SHAPE)
STEAM SYPHON PIPE
WATER SYPHON TUBE
WATER
SYPHON PIPE
(H/TUBE 3)
WATER
INLET ELBOW
DRAIN PLUG
IMMERSION ELEMENT (E280)
LOW LEVEL
PROBE
TOP PROBE
(SHORT 56mm)
BLACK WIRE
(PRB1/A)
LOW LEVEL PROBE
(LONG 254mm)
YELLOW WIRE
(PRB3/A)
OVER FILL PROBE
- ORANGE WIRE
(PRB4/A)
WATER
INLET ELBOW
P/GAUGE
REFRIGERATION FITTING
P/GAUGE
REFRIGERATION
FITTING
DATA PLATE
CORRECT POSITION OF BOILER TOP COVER PLATE:
SAFETY VALVE (No.1)
DIRECTLY IN LINE WITH HEATER, AS SHOWN.
1
2
3
4
Supreme 3 & 6
D.11 – issue 5
1. SAFETY VALVE (25 PSI)
2. VACUUM VALVE
3. P/STAT CONNECTION
“T” PIECE
4. BRASS PROBE HOLDER
C/W OVER FILL PROBE
Super Twin
Change Top Probe (Black Wire)
For PRB7/C
Replace Water Syphon Tube
Another Steam Tube
IMPORTANT: ENSURE PROBES
ARE IN THE CORRECT PLACE

WIRING LAYOUT AND TERMINAL CONNECTIONS
FOR SUPREME 3
EARTH
LIVE
TRIAC
TRIAC
PINK - 3
HEATER
HEAT
HEAT
BLUE - 6
BLUE - 7 NEUTRAL
VIOLET - 9
MAIN
P/STAT
(M)
FUSE
BOTTOM PROBE
TOP PROBE
LIMESCALE PROBE
Instanta
SUPREME
BROWN - 1
GREEN/YELLOW - 10-14
GREY - 2
GATE
RED - 4
RED - 5
INLET
INLET
BLACK - 8
LIVE in from trip PCB
SOLENOID TO LEDs
ON FRONT
PANEL
ON/OFF
SWITCH
PURPLE - 19
PURPLE - 20
YELLOW - 21
ORANGE - 22
BROWN - 23
RED - 24
ORANGE - 15
ORANGE - 25 BLACK - 26 YELLOW - 27
SCALE
ORANGE - 16
OVER-
RIDE
P/STAT
(O)
P/SW
PURPLE - 17
PURPLE - 18
OUTPUT
TO DIN
SOCKET
ON REAR
OF MACHINE
NEL
BROWN
GRN/YEL
BLUE BLUE
BROWN
WHITE
LIVE OUTNEUTRALNEUTRALLIVE IN
WD111
FF851
FF850
PCB

WIRING LAYOUT AND
TERMINAL CONNECTIONS
FOR SUPREME 6
EARTH
LIVE
TRIAC
TRIAC
PINK - 2
RED/GREY - 8
RED - 6 RED - 7
HEAT
HEAT
BLUE - 3
2 LIVE WIRES
FROM TRIAC TO
ELEMENTS (RED)
2 NEUTRAL WIRES
TO ELEMENTS (BLUE)
WD112
MAIN
P/STAT
(M)
FUSE
BOTTOM PROBE
TOP PROBE
LIMESCALE PROBE
Instanta
SUPREME
BROWN - 1
11-16
GREEN/YELLOW
EMPTY
GATE
EMPTY
INLET
INLET
BLACK - 4
VIOLET - 5
LIVE in from trip PCB
SOLENOID TO LEDs
ON FRONT
PANEL
ON/OFF
SWITCH
PURPLE - 21
PURPLE - 22
YELLOW - 23
ORANGE - 24
BROWN - 25
RED - 26
ORANGE - 17
ORANGE - 27 BLACK - 28 YELLOW - 29
SCALE
ORANGE - 18
OVER-
RIDE
P/STAT
(O)
P/SW
PURPLE - 19
PURPLE - 20
OUTPUT
TO DIN
SOCKET
ON REAR
OF MACHINE
NEL
BROWN
GRN/YEL
BLUE BLUE
GREY
WHITE
LIVE OUTNEUTRALNEUTRALLIVE IN
TRIAC
BLUE - 10 BLUE - 9
HEATER
ELEMENTS
N
L
FF851
FF850
PCB