Triton HUMBER Installation And Operating Instructions Manual
HUMBER
Dual Control
Mixer shower
Fixed head
Installation
and
Operating
Instructions
Installers please note these InstructIons are to be left wIth the user
2180596B January 2009
Dual control mixer
To check the product suitability for commercial and multiple installations, please contact Triton’s
specification advisory service before installation.
Telephone:
Facsimile:
E mail:
0844 980 0730
0844 980 0744
technical@tritonshowers.co.uk
CONTENTS Page
Introduction ................................................................................... 1
Safety warnings .............................................................................. 1
Main components and pack contents ............................................. 2
Site requirements ........................................................................... 3
Typical suitable installations ......................................................... 4 − 5
Temperature adjustment range ....................................................... 6
Instantaneous water heaters appliance
capabilities ......................................................................................
Preparing the mixer valve ............................................................... 7
Siting the shower ........................................................................... 7
Installation
General .............................................................................. 8 − 9
Solid wall ............................................................................. 10
Hollow wall .......................................................................... 11
Cubicle or panel .................................................................. 12
Connecting the supply pipes ......................................................... 13
Outlet adaptor ............................................................................... 13
Fitting the fixed head .................................................................... 14
Using the tiling shroud .................................................................. 15
Fitting the faceplate and knobs ................................................. 15 − 16
Commissioning .............................................................................. 17
Operating the shower.................................................................... 18
Adjusting the showerhead ............................................................. 18
Cleaning ........................................................................................ 19
Maintenance ............................................................................. 20 − 21
In-service testing ........................................................................... 21
Inspection and maintenance record ............................................... 22
Spare parts ................................................................................ 23 − 24
Fault finding .................................................................................. 25
Guarantee, service policy, etc. ..................................................rear cover
6
Dual control mixer
INTRODUCTION
This book contains all the necessary fitting
and operating instructions for your Unichrome
Humber dual control mixer shower. Please read
them carefully.
Read through the whole of this book before
beginning your installation.
The shower installation must be carried out by
a suitably competent person and in sequence of
this instruction book.
Care taken during the installation will make sure
a long and trouble free life from the shower.
This thermostatic shower valve has been
independently tested and approved to all the
requirements of NHS Estates Model Engineering
Specification D08 Thermostatic Mixing
Valves (Healthcare Premises) to the following
designations and for the following applications:
HP-S Shower with supply pressures of
1 − 5 Bar and unrestricted flow rate.
LP-S Shower with supply pressures of
0.2 − 1 Bar and unrestricted flow rate.
For best performance within the specified
running pressure range a minimum flow of
8 litres per minute should be available to both
inlets.
The valve is suitable for fully modulating type
combination boilers and multi-point hot water
heaters. It is also suitable for thermal storage,
unvented systems and pumped gravity systems.
The valve unit can be fitted in any orientation.
For a wall mounted showerhead installation, the
plumbing will be simplified if the outlet is fitted
upwards.
The valve is supplied with an integral single
check valve and integral large area filter on each
inlet.
Inlet connections are by compression fittings for
15mm copper pipe.
This valve unit is supplied with a mounting
bracket to suit installation in a chased out cavity
in a solid wall, a stud partition wall, dry lined
wall or fixing to a shower cubicle or panel. It
is also supplied with an attached tiling shroud
which provides protection for the unit.
SAFETY WARNINGS
1 Layout and sizing of pipework MUST be
such that when other services are used,
pressures at the shower control inlets do not
fall below the recommended minimum.
2 DO NOT choose a position where the
shower could become frozen.
3 The outlet of this appliance MUST NOT be
connected to any form of tap or fitting not
recommended by the manufacturer.
4 The showerhead cartridge MUST be cleaned
regularly to remove scale and debris.
5 Conveniently situated isolating valves
in each inlet supply MUST be fitted as
an independent method of isolating the
shower should maintenance or servicing be
necessary.
6 If it is intended to operate the shower in
areas of hard water it is advisable to fit a
scale inhibitor (see note below).
7 If it is intended to operate the shower
outside the guidelines laid out in the
requirements then see note below.
Note: In the event of items 2, 6 and 7, contact
Customer Service for advice.
Replacement parts can be ordered from Triton
Customer Service. See ‘spare parts’ for details and part
numbers.
Due to continuous improvement and updating,
specification may be altered without prior notice.
1
Dual control mixer
MAIN COMPONENTS and PACK CONTENTS
Fig.1
3
45 76 8
1
9
10
11
12
2
Ref Description
1 Mixer valve body
2 Face plate
3 Temperature control knob
4 On/off control knob
5 Trim rings
6 Brass retaining rings
7 Finishing caps
14
13
Ref Description
8 Locknut
9 Screw and washer
10 Tiling shroud
11 Mounting bracket
12 Flat bracket – 2 off
13 Fixed head assembly
14 Tool and screw pack
2
Dual control mixer
SITE REQUIREMENTS
The installation must be in accordance with local
Water Company Regulations.
Minimum running water pressure: 0.2 bar.
Maximum running water pressure: 5 bar.
Maximum static water pressure: 10 bar.
For best performance within the specified running
pressure range a minimum flow of 8 litres per
minute should be available to both inlets.
While the mixer valve is operational (open
outlet), inlet pressures must not be capable of
exceeding 7 bar. For effective operation of the
internal seals, the maximum static pressure must
not be exceeded.
Note: On sites where the running pressure is
above 5 bar, the use of a suitably sized pressure
reducing valve fitted in the cold mains supply
pipework can provide nominally equal pressures
at the mixer valve.
For ideal performance of this shower both the
hot and cold water supplies to the shower valve
should be fed at nominally equal pressures.
The pipework should be installed such that the
flow is not significantly affected by other taps
and appliances being operated elsewhere on the
premises.
Note: Where thermal store/combi boilers or
multi-point heaters are used, if excessive drawoffs take place the boiler may not be able to
maintain an adequate output temperature.
This could result in the shower temperature
becoming noticeably cooler.
Water temperature requirements
Maximum hot water temperature 80°C
Recommended maximum 65°C
Minimum hot water temperature 52°C
Maximum cold water temperature 20°C
BS 6700 recommends that the temperature of
stored water should never exceed 65°C.
A stored water temperature of 60°C is
considered sufficient to meet all normal
requirements and will minimise the affects of
scale in hard water areas.
DO NOT use jointing compounds on the
pipework.
3
Dual control mixer
Service
valves
Balanced cold mains supply
Cold mains supply
Mixer
shower
Expansion
vessel
Pressure
reducing valve
Pressure
reducing valve
Stop tap
Unvented
hot water
storage unit
Safety devices
not shown
CH flow
Cold
mains
supply
Hot water
Expansion
vessel
CH return
Service
valves
Shower
mixer
valve
Stop tap
Pressure
reducing valve
Combination
boiler
Fig.2 (diagrammatic view – not to scale)
Fig.3 (diagrammatic view – not to scale)
TYPICAL SUITABLE INSTALLATIONS
a) Instantaneous gas-heated systems,
e.g. combination boilers (fig.2)
The shower control must be installed with a
multipoint gas water heater or combination
boiler of a fully modulating design (i.e.
to maintain relatively stable hot water
temperatures).
A drop tight pressure reducing valve must
be fitted if the supply pressures exceed 5 bar
running.
An expansion vessel (shown in fig.2) must be
fitted, and regularly maintained, to make sure
the shower mixer is not damaged by excess
pressures. This may already be installed within
the boiler (check with manufacturer) and is in
addition to the normally larger central heating
expansion vessel.
The layout and sizing of pipework must be
such that nominally equal inlet supply pressures
are achieved and the effects of other draw-offs
are minimised. The hot supply temperature
must remain a minimum of 10°C hotter than
the required blend temperature for best
performance.
b) Unvented mains pressure systems
(fig.3)
The shower control can be installed with an
unvented, stored hot water cylinder.
For systems with no cold water take off after the
appliance reducing valve, it will be necessary to
fit an additional drop tight pressure reducing
valve when the mains pressure is over 5 bar.
The drop tight pressure reducing valve must be
set at the same value as the unvented package
pressure reducing valve.
Note: An additional expansion vessel (fig.3)
may be required if a second pressure reducing
valve is installed. This does not apply to
packages with a cold take off after the pressure
reducing valve to the cylinder.
The layout and sizing of pipework must be such
that nominally equal inlet supply pressures are
achieved and the effects of other draw-offs are
minimised.
4
Dual control mixer
2 metres
minimum
Isolating
valves
Other draw-offs
Gate
valve
Vent pipe
tee
Cold supply
Hot
supply
Alternative
connection
Mixer valve
Stop
tap
Cold
water
mains
supply
Drain
valve
Cold water
cistern
Hot
water
cylinder
Blender
valve
Flow
Cold mains supply
Hot water
Stop tap
Expansion vessel
Pressure
reducing valve
Return
Service
valves
Mixer
valve
Boiler
c) Mains pressurised thermal store
systems (fig.4)
Packages of this type, fitted with a tempering
valve (blender valve) can be used. A drop tight
pressure reducing valve must be fitted if the
supply pressures exceed 5 bar running.
An expansion vessel (shown in fig.4) must be
fitted, and regularly maintained, to ensure the
unit is not damaged by excess pressures. This
may already be installed externally or internally
within the thermal store (check with thermal
store manufacturer).
d) Gravity fed systems (fig.5)
The shower control MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures. There must be a
minimum of two metres head of water. The
minimum head distance is measured from the
base of the cold water cistern to top of the fixed
head shower arm (fig.5).
DO NOT use jointing compounds on pipework.
Fig.4 (diagrammatic view – not to scale)
Fig.5 (diagrammatic view – not to scale)
5
Dual control mixer
Flow regulator
Fig.6
TEMPERATURE ADJUSTMENT
RANGE
The mixed water temperature can be adjusted
from cold through to a top limit (which can
be preset during installation – factory set
at approximately 39°C) with full anti-scald
protection throughout the range.
INSTANTANEOUS WATER HEATERS
APPLIANCE CAPABILITIES
In order to provide the best performance from
the shower when connected to an instantaneous
water heater, the appliance must be capable of
raising the temperature of the incoming water
by 45°C (81°F) and delivering a flow rate of not
less than 8 litres per minute.
A flow regulator is supplied for fitting into the
fixed head which controls the maximum flow
through an instantaneous water heater and the
shower valve to 8 litres per minute. To fit the
flow regulator, unscrew the adjustable head from
the fixed arm. Insert the flow regulator, flat face
up, into the end of the fixed arm (fig.6). Refit
the adjustable head to the fixed arm assembly.
With the flow regulator fitted and when the
system is in use, the On/Off flow control should
be turned fully anti-clockwise to the full flow
setting.
6
Dual control mixer
Height of
showerhead
and shower
to suit user’s
requirement.
PREPARING THE MIXER VALVE
Check the contents to make sure all parts are
present.
Make sure the supplied metal fixing bracket,
tiling shroud, cranked spanner, lock nut key and
Allen key are all to hand.
Before installing, make sure all the openings
on the valve are carefully covered to stop the
ingress of any debris, etc.
The valve unit is supplied with a mounting
bracket for installing into a chased out cavity in
a solid wall, a stud partition wall, dry lined wall
or fixing to a shower cubicle or panel. It is also
supplied with an attached tiling shroud which
provides protection for the valve both for transit
and on site. It should be left in place until the
installation is complete.
The hot and cold water pipes should not be
permanently attached to the wall closer than 2m
from the valve prior to installation. This allows
for final adjustment of the valve position.
SITING OF THE SHOWER
WARNING!
The shower must not be positioned
where it will be subjected to
freezing conditions.
Fig.7 (diagrammatic view – not to scale)
Refer to (fig.7) for correct siting of the shower.
Position the shower and showerhead on the wall
so that all controls can be comfortably reached
while using the shower.
The valve unit can be fitted in any orientation.
For a wall mounted showerhead installation, the
plumbing will be simplified if the outlet is fitted
upwards.
7
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