Triton Thames, DART Eco Installation And Operating Instructions Manual
THAMES
concentric exposed
thermostatic mini mixer shower
Installation and
operating instructions
Installers ple ase note these I nstruc tIons are to be lef t wIth the user
2180766D - July 2012
Concentric exposed thermostatic mixer shower
CONTENTS Page
MAIN COMPONENTS .................................................................... 1
INTRODUCTION............................................................................ 2
SITE REQUIREMENTS
SAFETY WARNINGS ....................................................................... 2
PLUMBING REQUIREMENTS
WATER SYSTEM REQUIREMENTS .................................................... 3
TYPICAL DOMESTIC INSTALLATIONS
INSTALLATION
FITTING THE MIXER
ANTI-SCALD PROTECTION
LEAK TESTING ............................................................................... 9
COMMISSIONING ......................................................................... 9
ADJUSTING THE MAXIMUM TEMPERATURE SETTING
OPERATING THE SHOWER
APPROVALS
FLOW CHART ............................................................................... 12
DIMENSIONS
SPARE PARTS
MAINTENANCE
Cleaning the filters ........................................................................ 15
FAULT FINDING
Guarantee, service policy, etc.
.................................................................................. 12
..................................................................... 2
.......................................................... 3
...........................................4 - 6
............................................................................... 7
....................................................................... 8
............................................................ 9
................... 10
............................................................ 11
............................................................................... 13
................................................................................. 14
............................................................................ 15
.........................................................................16 - 17
..................................................rear cover
To check the product suitability for commercial and multiple installations, please contact Triton’s
specification advisory service before installation.
Telephone:
Facsimile:
0844 980 0730
0844 980 0744
E mail:
technical@tritonshowers.co.uk
Concentric exposed thermostatic mixer shower
MAIN COMPONENTS
Main components
Fig.1
1
2
5
6
3
7
4
Ref. Description
1. Mixer shower body
2. Blanking plug
3. Outlet adapter
4. Flow regulator
All dimensions listed in this fitting book regarding the product and installation are approximate.
5. Mounting plate
6. Wall trim X2
7. Inlet nut and Olive X2
- 110mm elbow adaptors X2 - not shown
*All kits are for illustration purposes only and are not supplied unless otherwise stated.
1
Concentric exposed thermostatic mixer shower
INTRODUCTION
This book contains all the necessary fitting and
operating instructions for your Triton mixer
shower. Please read them carefully and 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 give a long
and trouble free life from your mixer shower.
SITE REQUIREMENTS
The installation must be in accordance with
water supply (water fittings) regulation 1999
and/or local Bylaws.
Water pressure requirements
Running water pressure:
Low presure - 0.1 bar min.
1.0 bar max.
High pressure - 0.5 bar min.
5.0 bar max.
Maximum static water pressure:
Low & High pressure - 10 bar
This mixer shower is designed for use with
traditional low pressure ‘gravity’ water systems,
using a cold water cistern and hot water cylinder
as well as for the higher pressure systems found
in the UK up to a maximum of 5 bar running
pressure.
For effective operation of the internal seals, the
maximum static pressure must not be exceeded.
Pressure reducing valve
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 pipe work
can provide nominally equal pressures at the
mixer shower.
Replacement parts can be ordered from Triton Customer
Service. See ‘spare parts’ for details and part numbers.
Water minimum 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.
Water temperature requirements
Maximum hot water temperature: = 80°C
Recommended maximum: = 65°C
Minimum hot water temperature: = 55°C
Maximum cold water temperature: = 25°C
NOTE: Valves operating outside these conditions
cannot be guaranteed by the Scheme to operate
as Type 2 valves.
The mixer shower MUST NOT be subjected to
water temperatures above 80°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 effects of
scale in hard water areas.
Water temperature adjustment and
thermal safety
The mixed water temperature can be adjusted
from cold through to a top limit which must
be preset during installation with full anti-scald
protection throughout the range (35°C to 40°C)
providing the hot water temperature at the inlet
remains 10°C above the outlet temperature.
Should there be a loss of flow to either incoming
supply then- water from the shower will stop or
be reduced until both supplies are restored.
SAFETY WARNINGS
a. DO NOT choose a position where the shower
could become frozen.
b. DO NOT connect this mixer shower to any
form of tap or fitting not recommended by
the manufacturer.
c. DO NOT allow the inlet pressure or flow
rates to operate outside the guidelines laid
out in ‘site requirements’.
d. DO NOT connect the mixer shower to a
gravity hot supply and a mains cold supply
(or vice versa).
2
Concentric exposed thermostatic mixer shower
PLUMBING REQUIREMENTS
DO NOT use jointing compounds on any pipe
fittings for the installation,
DO NOT solder fittings near the mixer unit
as heat can transfer along the pipework and
damage the mixer valve.
IMPORTANT:
• ThelayoutandsizingofpipeworkMUST
be such that nominally equal inlet supply
pressures are achieved and the effects of
other draw-offs are minimised.
• Thepipe-workshouldbeinstalledsuch
that other taps and appliances being
operated elsewhere on the premises do not
significantly affect the flow
• Whenconnectingpipe-workavoidusing
tight 90° elbows; swept or formed bends will
give the best performance.
• Thehotwaterpipeentrymustbemadeto
the left-hand side inlet, marked HOT, ‘H’ or
with a red/orange label.
• Suitableisolatingvalves(complyingwith
Water Regulations and Bylaws) must be fitted
on the hot and cold water supplies to the
shower as an independent means of isolating
the water supplies should maintenance or
servicing be necessary.
• Itispreferabletoushthepipe-worktoclear
the system of debris and check for leaks
before connecting to the mixer.
• Themixerinletscontainremovablelters
that may become blocked if debris is not
flushed through before fitting.
(Commercial applications)
• Tritonrecommendsforallcommercial
applications that, easily accessible, in-line
filters are used to aid maintenance.
Hard water areas
a. If it is intended to operate the shower
in areas of hard water (above 200-ppm
temporary hardness), a scale inhibitor may
have to be fitted. For advice on the Triton
scale inhibitor, please contact Customer
Service.
b. For best performance the showerhead MUST be
regularly cleaned to remove scale and debris.
WATER SYSTEM REQUIREMENTS
This mixer shower is suitable for: -
• Gravitywatersystems
• Pumpedgravitysystems.
• Fullymodulatingtypecombinationboilers
• Multi-pointhotwaterheaters.
• Thermalstorage,
• Unventedsystems
When installing this mixer with a Combination or
multi-point boiler, it may be necessary to install
flow regulation.
Check that the appliance is capable of delivering
hot water at a minimum switch-on flow rate
of 3 litres per minute. At flow rates between 3
and 8 litres per minute, the appliance must be
capable of raising the water temperature to 52°C
(minimum).
Water temperature at the inlet of the mixer valve
must remain relatively constant when flow rate
adjustments are made (refer to the applianceoperating manual to confirm compatibility with
this mixer shower).
Where thermal store systems and instantaneous
gas water heaters are used, if excessive drawoff take place the appliance may not be able to
maintain an adequate output temperature. This
could result in the shower temperature becoming
noticeably cooler.
Flow regulators can be fitted with high-pressure
water systems to reduce flow rate and assist
economy.
The hot supply temperature MUST remain a
minimum of 10°C hotter than the required blend
temperature for optimum performance.
3
Concentric exposed thermostatic mixer shower
*Fig.2
Stop valve
supply
*Fig.3
*(diagrammatic view – not to scale)
Cold supply
Minimum head
Hot supply
Alternative supply
(must be below
vent pipe tee)
Cold water
cistern
Gate
valve
Cold
water
mains
Hot water
cylinder
Drain
valve
Other
draw-offs
Draw-off must point down
to avoid airlock issues
*(diagrammatic view – not to scale)
Service
valves
Mixer
Mixer
TYPICAL DOMESTIC INSTALLATIONS
Domestic gravity fed systems (fig.2)
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 one metre head of water. The
minimum head distance is measured from the
base of the cold water cistern to top of the
showerhead.
Kit
If valves are gravity, fed then supply pressure
should be verified to ensure conditions of use
are appropriate for the valve.
Pumped gravity fed systems (fig.3)
The shower control MUST be fed from a cold
water cistern and hot water cylinder providing
nominally equal pressures.
The mixer unit may be used with a gravity fed
system with a pump to boost pressures as shown;
please refer to the pump installation guide to
establish the minimum head requirements for
automatic operation of the pump.
Stop valve
Cold
water
mains
supply
Drain
valve
Cold water
cistern
Alternative supply
(must be below
vent pipe tee)
Gate
valve
Hot water
cylinder
Other
draw-offs
Draw-off must point
down to avoid airlock
issues
Cold supply
Minimum head
Hot
supply
Service
valve
Mixer
Mixer
Pump
Isolating switch or
pull cord switch
(both fused at 3A)
Ring main
Service
valve
*(kits are for illustration purposes only)
4
Concentric exposed thermostatic mixer shower
Instantaneous gas-heated systems, e.g.
combination boilers (
The shower control MUST be installed with a
multi-point 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 MAY be fitted, and regularly
maintained, to prevent the shower mixer
being 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.
fig.4)
Unvented mains pressure systems (fig.5)
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 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.
*Fig.4
Cold
mains
supply
*Fig.5
*(diagrammatic view – not to scale)
Kit
Mixer
Mixer
Service
valves
Stop
tap
Expansion
Hot water
vessel
Pressure
reducing valve
Combination
boiler
*(diagrammatic view – not to scale)
Mixer
Safety devices
not shown
Service
valves
CH flow
CH return
Kit
*(kits are for illustration purposes only)
Unvented
hot water
storage unit
Pressure
reducing valves
Stop tap
Balanced cold mains supply
Cold mains supply
Expansion
vessel
5
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