Stuart Turner SHOWERMATE 46534 Guide

Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the home owner as it contains
important guarantee, maintenance and safety information
Read this manual carefully before commencing installation.
This manual covers the following products:
Showermate U2.6 bar Single
Pt. No. 46534 Pt. No. 46534 EXP
Showermate U2.6 bar Twin
Pt. No. 46533 Pt. No. 46533 EXP
Showermate U1.8 bar Twin
Pt. No. 46532
FOR POSITIVE OR NEGATIVE HEAD APPLICATIONS
3
CE compliant product
SHOWERMATE

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PRODUCT DESCRIPTION
Electric motor driven single or twin ended peripheral pumps complete with an
automatic control system, consisting of flow switches, pressure switches, pressure
vessels and electronic control.
APPLICATION
Showermate Universal pumps are suitable for positive or negative head installation
conditions. These pumps are designed for single or multiple (up to 4) outlet pressure
boosting applications, within one bathroom, subject to correct specification and
pump sizing in vented stored water systems. 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 Page
Checklist ...........................................................5
Pre-Installation .......................................................5
Important Facts – read before commencing installation ......................6
Location ............................................................7
Pump Connections ...................................................11
Electrical Installation ..................................................15
Commissioning ......................................................18
Maintenance .........................................................19
Technical Specification ................................................21
Trouble Shooting .....................................................23
Guarantee ..........................................................27

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WARNINGS:
zThis 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.
zThis 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.
zChildren shall not play with the appliance.
zCleaning and user maintenance shall not be made by
children without supervision.
zWARNING – Washer/condenser dryers and condenser
dryers. The pump must not be used in the water
supply line to a washer/condenser drier or a
condenser drier, which uses a constant flow of cold
water to aid the condenser drying process, as
damage can occur to the pump. If in doubt or for
further information contact Stuart Turner Ltd.
zThe motor casing can become very hot under normal
operating conditions. Care must be taken to ensure it
cannot be touched during operation.
zThe electrical installation must be carried out
in accordance with the current national electrical
regulations.
zThe electrical installation must be installed by a
qualified person.
zIn 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.

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zMaximum head (closed valve) U1.8 bar twin-18 metres,
U2.6 bar twin-26 metres, U2.6 bar single-26 metres.
zBefore starting work on the electrical supply ensure
power supply is isolated.
zBefore starting work on the electrical supply ensure
power supply is isolated.
zDO 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.
zThis appliance must be earthed via the supply cord,
which must be correctly connected to the earth
point located in the terminal box.
zThe 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.
zIf 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.

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Your product may vary slightly from the picture above.
The quantities shown above are for twin pumps, (single pumps are shown in brackets).
CHECKLIST
Item Description Qty Item Description Qty
Pump 1 ISO Hose & integral washer 2(1)
Plain Hose & integral washer 2(1) Tank & ‘O’-ring 1
AC
D
B
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.
PREINSTALLATION CHECK
The pressure vessel is supplied as a
separate item, and will need to be
fitted prior to installing the pump.
Install the pressure vessel ensuring
the ‘O’-ring is in place and hand
tighten.
Note: Do not overtighten pressure
vessel.
After fitting the pressure vessel
ensure the retaining nut at the base
of the assembly is still hand tight and
the cable connecting the pressure
switch has not been strained during
the assembly.
Do not lift/carry the pump by the
transfer pipe or pressure vessel
manifold.
Fig. 1
D
B
A
C
Note: This image is for reference only
Fig. 2
Pressure vessel
‘O’-ring
Retaining nut
Note: This image is for
reference only

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1 IMPORTANT FACTS: READ BEFORE COMMENCING PUMP INSTALLATION
A Water storage capacity.
1.11 The hot and 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.
1.12 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.
B Water temperature
The water entering the pump must be controlled as follows:
1.13 The maximum allowable water temperature is 65 oC.
1.14 The minimum allowable water temperature is 4 oC.
1.15 DO NOT fit a pump if the hot water is heated via a method whereby the water
temperature cannot be controlled, such as solar or solid fuel you must
consult the TechAssist team on [phone].
C Pipework – General
1.16 Secure pipework: Ensure pipework to and from pump is independently
supported & clipped to prevent forces being transferred to inlet and outlet
branches of pump.
1.17 Flux: Solder joints must be completed and flux residues removed prior to
pump installation (flux damage will void any warranty).
1.18 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 90obends.
1.19 DO NOT introduce solder flux to flexible hoses, pumps or pump parts
manufactured from plastic.
1.20 DO NOT allow contact with oil or cellulose based paints, paint thinners
or strippers, acid based descalents or aggressive cleaning agents.
1.21 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.
1.22 DO NOT bend the flexible hoses beyond 30o. They must be installed as
straight as possible.
1.23 DO NOT connect this pump to the mains water supply.
1.24 DO NOT stress the inlets/outlets of the pump from the misalignment of
hoses/pipework.
D Plumbing Installation Regulations
1.25 The plumbing installation must comply with the current water and building
regulations.
1.26 The plumbing installation must be installed by a qualified person.
E Pressure vessel
1.27 Pressure vessel is charged at the factory see Section 6 – Maintenance for
details.

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2 LOCATION  GENERAL
2.11 Access: For emergencies and maintenance the pump must be
easily accessible.
2.12 Protection: The pump must be located in a dry position, frost free
and protected from freezing, particularly when installed in a loft
(not recommended).
2.13 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.
2.14 Safety: The motor casing can become very hot under normal
operating conditions. Care must be taken to ensure it cannot be
touched during operation.
2.15 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.
2.16 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 water
tank (Figs. 5 & 6), is at least 0.5 metres and does not exceed the max inlet
head of 6 metres.
2.17 Ambient temperature: The pump must be sited in a location where the
maximum ambient temperature does not exceed 40 oC.
2.18 Pipework: For optimum performance pipework MUST be 22 mm.
Pipework should only reduce to 15 mm when entering terminal fitting.
2.19 Static outlet pressure: The static outlet head must also be within the
maximum requirement (Figs. 5 & 6).
2.20 Noise: If supplied the anti-vibration mounting feet and flexible hoses can be
used to reduce noise transmission, however 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.
2.21 Direction of flow: Ensure the water flow is in the direction of the arrow that is
marked on the flow switch reed clamp (vertically upwards).
2.22 Flexible hoses: Only use the Stuart Turner hose set supplied with the pump.
2.23 Isolating valves: Separate system isolating valves (non restrictive) must be
fitted to allow easy pump service.
2.24 Strainers: To ensure the pump does not become damaged as a result of
debris in the water supply, strainers must be fitted in line (not supplied).
2.25 Preferred pump location: The pump must, for optimum performance, be sited
as close as possible to and never more than 4 metres from the HOT WATER
cylinder. The pump should always be sited BELOW the HOT WATER take-off
from the cylinder. The pump location is also dependent on limitations of
the static inlet and outlet heads of the installation. For guidance on
limitations and recommended location, consult the following relevant section
for hot or cold water installation.

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2.26 Non-preferred pump location: If it is necessary to position the Pump above
the secondary tapping on the hot cylinder it is fed by, the risk of introducing
air will be increased.
To avoid this risk one of the two following solutions must be adopted:
The use of a Top Entry cylinder flange.
The use of a Stuart Side Entry (SE) cylinder flange, which should have the
addition of an inverted loop (“U” bend) of 350 mm minimum drop before
rising to the pump, located as close as possible to the cylinder wall. This will
ensure the pump receives an air free supply and the cylinder vents any air up
the vent pipe and not the pump feed (Figs. 3 & 4).
2 LOCATION  SINGLE PUMP
Max. static inlet pressure 6m Min. static inlet pressure 0.5 m
hot water
services
Negative head
200 mm min
350 mm
Max. static outlet pressure 6m
least preferred area
Fig. 4 – Twin Pump
Max. static inlet pressure 6m Min. static inlet pressure 0.5 m
Negative head
200 mm min
350 mm min Max. static outlet pressure 6m
least preferred area
Fig. 3 – Single Pump
Negative Duty Single Pump System
Fig. 5
Max. static inlet pressure 6m

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2 LOCATION  TWIN PUMP
Cold water connection:
2.27 The cold water supply: Must be a DEDICATED AIR FREE supply via a
tank connector, and must be positioned at a slightly lower level (25 mm
minimum) than the feed pipe to the hot water cylinder.
Do not connect to the mains.
Negative Duty Twin Pump System
Fig. 6
Max. static inlet pressure 6m

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Hot water connection:
2.28 Hot water cylinder or storage tank: When a hot water cylinder or storage
tank is used, ensure the pipework size from the cold water storage to the hot
water storage is of adequate size and a minimum of 22 mm.
2.29 Hot water supply: The pump must be supplied with a dedicated feed direct
from the hot water cylinder or storage tank, ensuring an air free connection to
the pump. We recommend the use of either the side entry Stuart flange (SE)
Part No 27900 or a top entry flange see Fig. 7.
2.30 Expansion pipe: When the method of connection is to be made via the
expansion pipe, the BASE of the cold water storage tank MUST be at least
1 metre above the connection/take off of the hot water storage cylinder
feeding the pump.
Fig. 7
Top entry flange
with 22 mm
pipework to
pump.
Off expansion
pipe with rising
22 mm offset
and 22 mm
pipework to
pump.
Off vertical
expansion pipe with
22 mm pipework to
pump.
Factory installed G ¾
secondary tapping
with 22 mm pipework
to pump.
or
Side mounted Stuart
flange side entry (SE)
(Part No. 27900) with
22 mm pipework to
pump
30o– 45o