Stuart Turner CH 4-30 PS Guide

STUART
CH PRESSURE SETS
Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the home owner as it contains important
warranty, maintenance and safety information.
Read this manual carefully before commencing installation.
This manual covers the following products:
CH 4-30 PS
Pt. No. 46601
CH 4-50 PS
Pt. No. 44622
CH 4-40 PS
Pt. No. 46602
CH 4-60 PS
Pt. No. 44624
Please note images are representative only and may not portray your mode

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PRODUCT DESCRIPTION
Electric motor driven centrifugal pump complete with an automatic control system,
consisting of flow switch, pressure switch, pressure vessel and electronic control.
APPLICATION
The CH 4 Pressure Set range is designed for pressure boosting applications in vented,
stored, cold clean water systems, where under gravity, no flow is available and can be
used in systems where a negative head exists.
Inlet pressures to the pump and ambient temperatures must not exceed the values
given in the technical specifications.
STORAGE
If this product is not to be installed immediately on receipt, ensure that it is stored in a
dry, frost and vibration free location in its original packaging.
CONTENTS
1WARNINGS......................................................................................................3
2CHECKLIST ......................................................................................................5
3IMPORTANT FACTS .........................................................................................6
4LOCATION - GENERAL ....................................................................................7
5PUMP CONNECTIONS .....................................................................................9
6ELECTRICAL INSTALLATION / EARTHING .................................................... 10
7COMMISSIONING / SYSTEM FLUSHING/ PRIMING / STARTING.................. 13
8MAINTENANCE .............................................................................................. 14
9TECHNICAL SPECIFICATION ......................................................................... 16
10 TROUBLE SHOOTING GUIDE......................................................................... 18
11 PRODUCT WARRANTY TERMS & CONDITIONS............................................ 21

Cont ...
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1WARNINGS
 This pump set must not be used for any other
application without the written consent of Stuart
Turner Limited and in particular, must not be
connected directly to the mains water supply.
 This appliance can be used by children aged from
8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.
 Children shall not play with the appliance.
 Cleaning and user maintenance shall not be made by
children without supervision.
 This product should not be used for the supply of
water to more than one dwelling (house, apartment,
flat).
 Maximum head (closed valve) CH 4-30 PS-25 metres,
CH 4-40 PS-37 metres, CH 4-50 PS-51 metres,
CH 4-60 PS-64 metres.
 The motor casing can become very hot under normal
operating conditions. Care must be taken to ensure it
cannot be touched during operation.
 The electrical installation must be carried out in
accordance with the current national electrical
regulations.
 The electrical installation must be installed by a
qualified person.
 In the interests of electrical safety a 30 mA residual
current device (R.C.D. not supplied) should be
installed in the supply circuit. This may be part of a
consumer unit or a separate unit.
 Before starting work on the electrical supply ensure
power supply is isolated.

Cont ...
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 DO NOT allow the supply cord to contact hot
surfaces, including the motor shell, pump body or
pipework. The cord should be safely routed and
secured by cable clips.
 This appliance must be earthed via the supply cord,
which must be correctly connected to the earth point
located in the terminal box.
 The supply cord and internal wiring within the
terminal box are routed and secured to ensure
compliance with the electrical standard
EN 60335-1. It is essential that prior to any
disturbance of this internal wiring, all cable routing
and securing details are carefully noted to ensure
re-assembly to the same factory pattern is always
maintained.
 If the supply cord is to be changed or is damaged,
it must be replaced with a special cord assembly
available from Stuart Turner or one of their approved
repairers.
Please read installation details carefully as they are intended to ensure this product
provides long, trouble free service. Failure to install the unit in accordance with the
installation instructions will lead to invalidation of the warranty.

Cont ...
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2CHECKLIST
Note: Item E supplied loose - this will require fitting to the pump outlet. Tighten to
torque 4/5 Nm.
Your product may vary slightly from the picture above.
Item Description Qty Item Description Qty
APump 1DPressure vessel 1
BHose & sealing washer 2EMounting feet & fittings 4
CInline strainer 1
E
D
A
B
C
B
28 mm copper outlet pipework (discharge).
Short 28 mm copper
pipe tails to connect
between isolating valve
and flexible pipes.
28 mm copper
inlet pipework
(suction).
28 mm isolating valve
(non restrictive) and
fittings (not supplied)
to allow ea sy pump
service.
28 mm - G 1 connector
(not supplied)must
be fitted
28 mm flexible
pipes. These
hoses are fitted
with G 1 female
connector
suitab le for connection to a
G 1 (1 “ BSP) adap tor or fitting.
28 mm isolating valve
(non restrictive) and
fittings (not supplied)
must be fitted to allow
easy pump service.
Fig. 1
IMPORTANT: With the pump
removed from its packaging
check for any damage prior to
installation. If any damage is
found contact Stuart Turner
Ltd
within 24 hours of receipt.

Cont ...
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3IMPORTANT FACTS
READ BEFORE COMMENCING PUMP INSTALLATION
AWater storage capacity.
3.11 The cold water storage capacity must be sufficient to meet the flow rates
required by the pumped equipment and any other water using fittings and
appliances, which may be operated simultaneously.
3.12 Ensure the pump is primed as described in the priming section before
starting, damage to the shaft seal will result otherwise. See Section 5
-
Commissioning.
BWater temperature
This unit is designed to pump cold water only which should not exceed the
following values:
3.13 The maximum allowable water temperature is 23 oC.
3.14 The minimum allowable water temperature is 4 oC.
C Pipework - General
3.15 Secure pipework: Ensure pipework to and from pump is independently
supported & clipped to prevent forces being transferred to inlet and outlet
branches of pump.
3.16 Flux: Solder joints must be completed and flux residues removed prior to
pump installation (flux damage will void any warranty).
3.17 Pipework design: Care should be taken in the design of pipework runs to
minimize the risk of air locks e.g. use drawn bends rather than 90o bends.
3.18 DO NOT introduce solder flux to flexible hoses, pumps or pump parts
manufactured from plastic.
3.19 DO NOT allow contact with oil or cellulose based paints, paint thinners
or strippers, acid based descalents or aggressive cleaning agents.
3.20 DO NOT install a non-return valve, or devices which contain non-return
valves, in the suction (inlet) pipework to the pump. The pump must
be free to vent to the supply tank at all times.
3.21 DO NOT bend the flexible hoses beyond 30o. They must be installed as
straight as possible.
3.22 DO NOT connect this pump to the mains water supply.
DPlumbing Installation Regulations
3.23 The plumbing installation must comply with the current water and building
regulations.
3.24 The plumbing installation must be installed by a qualified person.
E
Pressure vessel
3.25 Pressure vessel is charged at the factory see Section 6 - Maintenance for
details.

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4LOCATION - GENERAL
4.11 Access: For emergencies and maintenance the pump must be easily
accessible.
4.12 Protection: The pump must be located in a dry position, frost free
and protected from freezing, particularly when installed in a loft
(not recommended).
4.13 Ventilation: Ensure an adequate air flow to cool the pump.
Separate the pump from other appliances that generate heat. An
80 mm (3 “) air gap must be maintained around the pump.
4.14 Safety: The motor casing can become very hot under normal
operating conditions. Care must be taken to ensure it cannot be
touched during operation.
4.15 Water retention: Site the pump in a location where in the unlikely
event of a water leak, any spillage is contained or routed to avoid
electrics or areas sensitive to water damage.
4.16 Static inlet pressure: Before deciding where to locate the unit check to
ensure the static inlet head between pump and the bottom of the cold tank
(Fig. 2) is at least 1 metre and does not exceed the max inlet head of
10 metres.
4.17 Pump position: The pump must be positioned on its mounting feet and as
close to the water source as possible.
4.18 Ambient temperature: The pump must be sited in a location where the
maximum ambient temperature does not exceed 40 oC.
4.19 Pipework: For optimum performance pipework use 28 mm dia., 22 mm can
be used but will result in reduced pump performance. Note: Inlet pipework
must always be greater than or equal to the outlet pipework diameter.
Pipework should only reduce to 15 mm when entering terminal fitting.
4.20 Static outlet pressure: The static outlet head (Fig. 2) must also be within the
maximum requirement of 13 metres.
4.21 Noise: Care must be taken when mounting the pump that any noise is not
amplified through loose panels or pipework. Do not screw down the pump.
4.22 Direction of flow: Ensure the water flow is in the direction of the arrow
marked on the flow switch reed clamp (vertically upwards).
4.23 Flexible hoses: Only use the Stuart Turner hose set supplied with the pump.
4.24 Isolating valves: Separate system isolating valves (non restrictive) must be
fitted to allow easy pump service.
4.25 Preferred pump location: The preferred pump location is at floor level next
to the water source or a level that is below the secondary tapping that feeds
the pump. Ensure the pump is mounted in a position that allows easy access
to the terminal box if required. The pump location is also dependent on
limitations of the static inlet and outlet heads of the installation.

Cont ...
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Unvented hot
water cylinder
Cold
water
Hot water
Fig. 2
The cold water supply: Must be a DEDICATED AIR FREE supply via a tank
connector.
Do not connect to the mains.
Static
inlet pressure
Min. 1 m
Max. 10 m
Static
outlet pressure
Max. 13 m

Cont ...
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5PUMP CONNECTIONS
5.11 Hose to pump: These pumps have G 1 threaded connections to accept the
hoses supplied. The hose end is made water tight with a sealing washer on
assembly, nip tight to 4/5 Nm for water tight seal (Do not overtighten).
5.12 Hose to pipework: Hoses terminating in G 1 threaded connections are
supplied and when securing the male end to a suitable pipe fitting, seal with
PTFE tape or other suitable sealant.

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6ELECTRICAL INSTALLATION / EARTHING
6.11 Regulations: The electrical installation must be carried out in
accordance with the current national electrical regulations and
installed by a qualified person.
6.12 Safety: In the interests of electrical safety a 30 mA residual current
device (R.C.D. not supplied) should be installed in the supply circuit.
This may be part of a consumer unit or a separate unit.
6.13 Before starting work on the electrical supply ensure power supply is
isolated.
6.14 DO NOT allow the supply cord to contact hot surfaces, including the
motor shell, pump body or pipework. The cord should be safely
routed and secured by cable clips.
6.15 Supplementary Bonding: The pressure set is factory fitted with a
supplementary earthing wire to ensure continuity throughout the assembly
(Fig. 3). It must be ensured throughout the product life that this electrical
connection remains in place.
Warning Tag
Fig. 3
6.16 Adjacent pipes: Adjacent suction and delivery pipes should be fitted with
earthing clamps in accordance with current regulations (Fig. 4).
Diagram
of earth
continuity
connections
Fig. 4
6.17 Earthing: This appliance must be earthed via the supply cord, which must be
correctly connected to the earth point located in the terminal box.
6.18 Pipework: Copper or metallic pipework must have supplementary earth
bonding where the continuity has been broken by flexible hoses or plastic
components.

Cont ...
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6.19 Additional earthing: Certain installations may require additional earthing
arrangements such as equipotential bonding. Reference should be made to
the relevant regulations concerning this subject to ensure compliance.
6.20 Connections: The pump must be permanently connected to the fixed wiring
of the mains supply using the factory fitted supply cord, via a double
pole switched fused spur off the ring main and NOT connected to the boiler
or the immersion heater circuits.
6.21 Wiring of connection unit:
WARNING: This appliance must be earthed.
The wires in the mains lead (supply cord) are coloured in accordance with the
following code:
Green and Yellow: Earth
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead of this appliance may not
correspond with the coloured markings identifying the terminals in your
connection unit proceed as follows:
 The wire which is coloured green and yellow must be connected to the
terminal in the connection unit which is marked with the letter E or by the
earth symbol: or coloured green or green and yellow.
 The wire which is coloured blue must be connected to the terminal which
is marked with the letter N or coloured black.
 The wire which is coloured brown must be connected to the terminal
which is marked with the letter L or coloured red.
6.22 Wiring Diagram:
6.23 Fuses: The following fuse size should be used with the appropriate pump:
Model Fuse Size (AMPS)
All Models 13
GREEN / YELLOW
BLUE
BROWN L
E
N230 VA C/1PH/50Hz
SUPPLY
RED
CAPACITOR
MOTOR
GREEN / YELLOW (L INK WIRE)
RED
YELLOW
RED
BL ACK
BL ACK
FLOWSWITCH
REED (S3)
S3
S1 S1
PRESSURE
SW ITCH (S1)
S3
MN N L
Fig. 5

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6.24 Supply Cord Replacement:
The supply cord and internal wiring within the terminal box are
routed and secured to ensure compliance with the electrical
standard EN 60335-1. It is essential that prior to any disturbance
of this internal wiring, all cable routing and securing details are
carefully noted to ensure re-assembly to the same factory pattern
is always maintained.
If the supply cord is to be changed or is damaged, it must be replaced with a
special cord assembly available from Stuart Turner or one of their approved
repairers.
On disassembly note the cord retention and routing system. Re-assemble to
the same pattern.
For information on cable connection consult the wiring diagram and cable
gland fitting instructions.
6.25 Cable Gland Fitting Instructions:
To enable correct assembly of the cable gland the ‘O’-ring (Fig. 6 item 1) must
be placed over the cable before the clamping insert (Fig. 6 item 2) can be
tightened.
Note: Cable diameter range:- 9.2 mm to 11.9 mm.
6.26 Supply Cord Extension:
The pumps are fitted with a supply cord to the following specification:-
All models ................................ HO7RN-F3 G 1.5 mm²
- 16 Amp rated cable.
If the supply cord is to be extended, a cord of the same specification should
be used. Any connections or junction boxes used should be specifically
suited for the application and installed in accordance with the manufacturers
instructions.
1
2
Fig. 6

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7COMMISSIONING / SYSTEM FLUSHING/ PRIMING / STARTING
7.11 System Flushing
The pipework system should be flushed out prior to the pump
being connected to ensure any contaminants/chemical residues
and foreign bodies are removed from elsewhere in the system.
7.12 Water Supply: Always ensure that water storage capacity is adequate to meet
the demand. Ensure the pump chamber is full of water before starting the
pump. Failure to do this could result in seal damage. To ensure dry running
does not occur the pump must be primed as described in priming section
below. Do not run pump dry.
7.13 Priming:
Never operate pump with inlet and/or outlet isolating valves in the
closed position. Damage will occur!
The pump must be primed (filled with water) before starting.
Turn on the service valves and vent/prime pump head.
(a) Loosen priming plug and allow an even flow of water this may take a
few seconds.
(b) Re-seal priming plug, nipping tight. The pump is now ready to start.
7.14 Starting:
a) Ensure all outlets are closed, turn power supply ‘on’
- pump will start,
pressurise the system then stop.
b) Open and close all outlets in turn associated with the pump, (including
w/c systems) allowing water to flow from each outlet until all air is purged.
As each outlet is opened and closed, the pump will start and stop
respectively.
Note: After closing the outlet there will be a small time delay before the
pump stops, which is normal.
c) Any tap or control valve within the system when opened and closed will
now turn the pump on/off. Providing this is the case the system is now
operating correctly.
d) Carefully check pump and pipework for leaks whilst pump running and
stationary before leaving the installation unattended.
7.15 For Further Technical Support: Phone the Stuart Turner TechAssist team
on [phone]. Our staff are trained to help and advise you over
the phone.
Priming/vent
Plug
Drain
Plug
Fig. 7

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8MAINTENANCE
8.11 Turn off water supplies to the pump and release pressure by
opening water outlets before attempting maintenance.
8.12 Inlet strainer: Incorporated in the strainer is a removable gauze filter which
may require periodic cleaning. The frequency of this operation is dependent
upon installation conditions.
The strainer is located in the inlet pipework to the pump (Fig. 8). The gauze
filter is removed as follows:-
a) Isolate pump electrically.
b) Release all system pressure.
c) Isolate water supply.
d) Remove screwed hexagonal plug from strainer body taking care to collect
or absorb any residual water (Fig. 8).
Fig. 8
e) Remove and clean stainless steel gauze filter.
f) Reassemble gauze and secure plug tightly.
g) Turn on water supplies, connect power supply and test.
8.13 Pressure vessel: The pressure vessel should be checked once every 6 months
to have its air charge checked or replenished, this should be carried out as
follows:-
a) Isolate pump electrically.
b) Isolate the water supply by closing the appropriate isolating valves.
c) Release system water pressure by opening an outlet on the system.
d) Disconnect hose fitted to pressure vessel.
e) Check air charge at Schrader valve (Fig. 9) using a tyre pressure gauge.
f) Replenish air charge by injecting air into the vessel via the Schrader valve
using a car or bicycle pump (Fig. 9).
g) Re-connect hose to pressure vessel to achieve a water tight connection.
Ensure rubber washer seal is in place.
h) Close all system outlets, open inlet and outlet isolating valves.
i) After maintenance is completed refer to Section 5
- Commissioning for
instructions on re-starting pump.
Hex plug
Gasket
Gauze
Strainer

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8.14 Water scale: As water is heated scale deposits are released in areas of hard
water, scale can cause the mechanical seal to stick if left without use for long
periods. The pump must be run for at least 5 minutes every four weeks to
“exercise” all working parts. Run on cool water. See Section 7
- Technical
Specification for note on water temperature. This particularly applies to guest
bathrooms used infrequently.
8.15 Cleaners, Disinfectants and Descalents:
Acid based descalents and aggressive cleaning agents must not
come into contact with the pump. The pump must be removed from
the system prior to the use of these products. The system should be
flushed to remove all chemicals before the pump is re-connected.
If in any doubt as to the suitability of the chemical solutions, please
contact our TechAssist helpline on [phone].
Model Air Charge
bar (psi)
CH 4-30 PS 1.3 (19)
CH 4-40 PS 1.8 (26.1)
CH 4-50 PS 2.8 (40.6)
CH 4-60 PS 2.8 (40.6)
Schrader
valve
Cap
Pressure vessel
Fig. 9

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9TECHNICAL SPECIFICATION
Pump Model
CH 4-30 PS
50 Hz
46601
CH 4-40 PS
50 Hz
46602
CH 4-50 PS
50 Hz
44622
CH 4-60 PS
50 Hz
44624
General Warranty 2 years
WRAS approval Approved materials
Conformity certification UKCA, CE
Features Pump type Centrifugal Multistage
Pump control Pressure/flow switch
Anti-vibration feet
   
Inlet strainer(s)
   
Flexible hoses 2222
Run on Timer 3 sec 3 sec 3 sec 3 sec
Dry run protection
   
Diaphragm tank size 24 litres
Diaphragm tank capacity 12 litres
Priming vent plug
   
Typical noise 67 dB(A) 68 dB(A) 69 dB(A) 70 dB(A)
Materials Pump body Brass / stainless steel
Impeller Stainless steel
Mechanical seal EDPM / Carbon / Ceramic
Performance Maximum head - closed valve 25 metres 37 metres 51 metres 64 metres
Performance @ 50 l/min 15 metres 34 metres 46 metres 58 metres
Performance @ 100 l/min 6 metres 20 metres 30 metres 40 metres
Maximum flow 127 l/min 141 l/min 150 l/min 153 l/min
Minimum static inlet pressure 1 metre
Maximum static inlet pressure 10 metres
Maximum static outlet pressure 13 metres
Maximum working pressure* 600 kPa (6 bar) 900 kPa (9 bar)
Max. ambient air temperature 40 oC
Min / Max water temperature Min 4 oC / Max 23 oC
Cut out flow 1 l/min (approx.)
Cut in pressure 140 kPa (1.4 bar) 190 kPa (1.9 bar) 290 kPa (2.9 bar)
Pressure vessel air pre-charge 1.3 bar (19 psi) 1.8 bar (26.1 psi) 2.8 bar (40.6 psi)
Connections Pump connections G1 M
Flexible hoses Connections G1 M x G1 F x 300 mm long
Anti-vibration hose (diameter) G1
Motor Type Induction, auto-reset thermal trip
Duty rating Continuous (S1)
Electrical Power supply (Vac/Ph/Hz) 230 V a.c. / 1 / 50 Hz
Power consumption - P1 775 Watts 1136 Watts 1655 Watts 1974 Watts
Current - full load 3.5 Amps 5.1 Amps 7.3 Amps 8.7 Amps
Fuse rating 13 Amps
Power cable length 1.5 metres (pre-wired)

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Pump Model
CH 4-30 PS
50 Hz
46601
CH 4-40 PS
50 Hz
46602
CH 4-50 PS
50 Hz
44622
CH 4-60 PS
50 Hz
44624
Physical Enclosure protection IPX5
Length 521 mm
Width 280 mm
Height - excluding hoses 647 mm 667 mm
Weight - including fittings 17.3 Kg 18.5Kg 23.4 Kg 25.9 Kg
Stuart Turner reserve the right to amend the specification without notice.
*Note: Indicates maximum casing pressure
9.11 Noise: The equivalent continuous A-weighted sound pressure level
at a distance of 1 metre from the pump does not exceed 70 dB(A).

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10 TROUBLE SHOOTING GUIDE
Symptoms Probable Cause Recommended Action
Pump will not start. Electrical supply. Check power supply.
Check fuse (see fuse section).
Check circuit breaker is set.
Check wiring connections.
Pump Jammed. If motor ‘Buzzes’ switch off power and contact Stuart
Turner.
Damaged pressure switch. Turn off power.
Release system water pressure.
Turn on power, pump should start. If NOT contact Stuart
Turner.
Recommended static inlet/
outlet heads exceeded.
Re-position pump (see pump location section).
Internal motor thermotrip
activated.
Wait for thermotrip to auto-reset and check that duty
point and run time is within specification (see technical
specification).
Reduced/intermittent flow. Incorrect or no anti-aeration
flange fitted
Check that the installation complies with installation
instructions.
Incorrect pipe sizes. Check for correct pipe sizing, see Page 5 - Section 2.19.
Blocked inlet filters. Clean inlet filters (see maintenance section).
Blocked shower head spray
plate
Clean in accordance with manufacturers instructions.
Pump runs on with outlets
closed.
Leak in system. Check tap washers, w/c valve washers, pipe joints.
Damaged reed switch, P.C.B
or pressure switch.
If pump continues to run, this indicates a closed circuit in
either the flow switch reed, pressure switch or P.C.B. in the
terminal box. Contact Stuart Turner.
Jammed flow switch. Remove outlet hoses and check that flow switch sits in
lowest position. Check float for free movement.
or
Pump cycles (hunts) on/off
frequently.
Low pressure in pressure
vessel.
Check pressure in pressure vessel (see maintenance
section).
Debris under non-return valve
sealing face.
Run at full flow to try and flush away debris or remove,
clean or replace non-return valve.
Flexible hose leaks Not fitted correctly. Check that the hose is pushed firmly onto the pump inlet/
outlet connections and pipework.
Damaged ‘O’-rings. Check copper pipe ends are cleanly cut and deburred.

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10.11 Dry Run Protection:
This pump is fitted with a safety control circuit, which will detect the
following fault condition:
 Dry running caused by water starvation to the pump.
Should the pump run out of water it will stop as part of a “protective logic
sequence”, detailed below.
The fault should be rectified before re-starting the pump. Check that there is
sufficient water supply to the pump and also ensure that all terminal fitting
outlets are closed.
10.12 Protective Logic Sequence:
If water starvation occurs and the power supply to the pump remains
uninterrupted, the pump controller will perform the following protective
sequence.
1. If the pump detects water starvation, it will stop operation after a 1 minute
period.
2. The pump will remain in the off condition for a period of 5 minutes.
3. The pump will then re-start and if the water starvation condition remains
present, the pump will then stop operation after a 1 minute period.
4. The pump will remain in the off condition for a period of 5 minutes.
5. The pump will then re-start and if the water starvation condition remains
present, the pump will then stop operation after a 1 minute period.
6. The pump will remain in the off condition for a period of 5 minutes.
7. The pump will then re-start and if the water starvation condition remains
present, the pump will then stop operation after a 1 minute period.
8. After three consecutive resets are performed the pump will remain in the
off condition indefinitely.
9. To restart the pump, the power supply should be first isolated for a period
of at least 10 seconds before switching on again.
If the pump fails to operate normally after three attempts, then please consult
the TechAssist team on [phone].
10.13 Fault Finding
The PCB is also fitted with a “power on” indicator light. This will remain
illuminated when mains power is supplied to the board.
The indicator light is located on the PCB within the terminal box.
 This operation should only be carried out by a qualified
person
To view the light the following procedure must be followed:-
 Isolate the mains electrical power supply from the pump.
 Remove the four screws retaining the terminal box lid (Fig. 10).
 Lift the terminal box lid off.
 IMPORTANT - Ensure there is no contact with any of the internal parts of
the terminal box.

- 20 -
 Briefly reconnect the mains power supply to the pump - the ‘power on’
light should illuminate if the pump has been correctly wired.
 Isolate the mains electrical power supply from the pump.
 Re fit the terminal box lid ensuring no cables are trapped.
 Re fit the four terminal box lid retaining screws, tighten to 0.8 Nm.
Terminal box lid
Retaining screws x 4
‘Power
on’ light
Fig. 10 Wiring removed for clarity
10.14 Environment Protection: Your appliance contains valuable materials which
can be recovered or recycled.
At the end of the products’ useful life, please leave it at an appropriate local
civic waste collection point.