Triton Digital Mixer Shower User manual

Installation Guide
DIGITAL MIXER
SH WER
2181516D - April 2018
Installers please note these InstructIons are to be left wIth the user
European Union Registered Design No
004558245-0001/10

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Important Information .....................................................................
Standards and approvals .................................................................
Dimensions ..........................................................................................
Digital Controller ........................................................................
Digital Mixer Processor Unit .....................................................
Specifications ......................................................................................
Main Components .............................................................................
General Installation Information ..................................................
Typical suitable Installations ..........................................................
High Pressure Instantaneous Hot Water Systems .................
High Pressure Unvented Mains Pressure Cylinders ..............
High Pressure Thermal Store Systems .........................................
Low Pressure Gravity Fed Systems .........................................
Digital Mixer Processor Installation .............................................
Plumbing Connections ........................................................................
Electrical Connections ..........................................................................
Installation Schematic ...............................................................
Digital Controller Installation ........................................................
Data Cable Installation ..............................................................
Fixing Bracket Installation ........................................................
Digital Controller Fitting (Wired Connectivity) ...................
Digital Controller Fitting (Wireless Connectivity) ...............
Commissioning ..................................................................................
Quick Start ...........................................................................................
General Maintenance .......................................................................
Spare parts ...........................................................................................
Fault Diagnosis ...................................................................................
Disposal and Recycling ....................................................................
Guarantee, Service policy, etc .......................................................
Contents

3
This book contains all the necessary installation
instructions for your Digital Mixer Shower – please
read them carefully.
Care taken during the installation will provide a long,
trouble-free life from your shower.
The installation must be in accordance with Water
Regulations and Bylaws.
BS EN 806 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.
Standards and approvals
The processing unit is an independently mounted
electronic control. Complies with the requirements
of current British and European safety standards for
household and similar electrical appliances.
Meets with Compliance with European New Approach
Directives (CE).
Declaration of conformity
Triton Showers declares that the HOST/HOME products,
in conjunction with controllers, complies with the
essential requirements and other relevant provisions
of the Low Voltage Directive (2014/35/EU) and the EMC
Directive (2014/30/EU) and the RE Directive (2014/53/
EU)
Important information

4
The showerhead and hose supplied with this product
are a safety critical part of your shower. Failure to use
genuine Triton parts may cause injury and invalidate
your guarantee.
Please read this book thoroughly and familiarise
yourself with all instructions before commencing
installation and keep it for future reference.
The shower installation MUST be carried out by a
suitably qualified person, following the sequence of this
instruction book.
Plumbing
Supply pipes must be flushed to clear debris before
connecting the processing unit.
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.
DO NOT use excessive force when making connections
to the Digital Mixer Processor unit.
DO NOT choose a position where the Digital Mixer
Processor will become frozen.
DO NOT connect the Digital Mixer Processor unit to
any form of tap or fitting not recommended by the
manufacturer.
The length of pipework from the Digital Mixer
Processor unit to any outlet fitting MUST NOT exceed
5m.
Important information

5
The showerhead or other approved Triton device
MUST be regularly cleaned to remove scale and debris.
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.
DO NOT operate the Digital Mixer Processor unit
outside the guidlines as laid out in ‘site requirements’
and ‘specifications’.
DO NOT connect to a combination cylinder unless the
minimum cold storage can be achieved as the shower
can deliver up to 16 litres/min.
DO NOT connect the low pressure Digital Mixer
Processor unit to the mains water supply as this would
damage the unit.
When installed, the top of the low pressure Digital
Mixer Processor unit MUST be at least 100 mm lower
than the base of the cold water cistern to prevent the
unit running dry.
A dedicated cold water supply MUST be taken directly
from the cold water cistern to the low pressure Digital
Mixer Processor unit.This draw-off MUST be on the
opposite side of the cistern to the float operated valve
to reduce the risk of air entering the unit.
The infill to the cistern should be checked to ensure an
adequate infill rate occurs.
Important information

6
Electrical
The installation must comply with BS 7671
‘Requirements for electrical installations’ (IEE wiring
regulations). Make sure metal incoming hot and cold
water supplies to the Digital Mixer Processor unit are
adequately earth bonded.
DO NOT turn on the electrical supply until the
plumbing connections have been completed. Only
then can the electricity be switched on in order to
undertake commissioning. The Digital Mixer Processor
unit must not be operated dry without water.
The Digital Mixer Processor unit MUST be permanently
connected to a 3Amp fused connection unit and be
provided with means for disconnection incorporated
in the fixed electrical wiring in accordance with current
wiring regulations.
A 30mA Residual Current Device (RCD) MUST be
included in the electrical circuit. This may be part of
the consumer unit or a separate unit.
If the Digital Mixer Processor unit is to be installed
within a bath or shower room the electrical installation
MUST conform to Part P Building Regulation
Requirements for Special Locations.
The Digital Mixer Processor unit MUST only be used
with the AC power supply cable provided. If this supply
cable is damaged, it must be replaced by a Triton
engineer or similar qualified persons to avoid a hazard.
Important information

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61 41 18
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152
103
Digital Controller (Including Wall Fixing Bracket)
Professional installer Notes
In premises with metallic surfaces e.g. metal ceiling
panels, metal ducting and metallic insulating
materials, wireless transmissions MAY BE BLOCKED
from the control panel and prevent correct
operation of the shower.
To check the product suitability for commercial
and multiple installations, Please contact Triton’s
Specication Advisory Service on: 024 7637 2222
for guidance on installations.
Dimensions

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330
196
44 43
342
83
89
268
248
342
91
27.5
42.5
INLETS
OUTLETS
Dual Outlet Processor Unit
(High Pressure and Low Pressure)
Dimensions

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Dimensions
330
196
44
342
83
89
268
248
342
91
27.5
42.5
INLETS
OUTLETS
Single Outlet Processor Unit
(High Pressure and Low Pressure)

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Electrical
Mains Supply
Maximum Load
Water
Inlet Connections
Outlet Connections
Water Pressures
Maximum Static
Minimum Running
Supply Pressure
Differential
Temperatures
Hot water temperature
Cold water temperature
Ambient temperature
Showering temperature
adjustment range
Splashproof rating
Digital processor unit
Low pressure/gravity
system
230V 50Hz
125 W
15 mm push-fit
connectors**
15 mm push-fit
connectors**
100 kPa (1bar/10m head)
1 kPa (0.01bar/0.1m
head)
Nominally Equal
55°C - 65°C
1°C - 20°C
5°C - 40°C
32°C to 47°C*
IP24
Digital processor unit
High pressure
system
230V 50Hz
30 W
15 mm push-fit
connectors**
15 mm push-fit
connectors**
500 kPa (5 bar)
100 kPa (1 bar)
Nominally Equal
55°C - 65°C
1°C - 20°C
5°C - 40°C
32°C to 47°C*
IP24
*Max Temperature setting can be adjusted between 41°C and 47°C (factory set at 47°C)
Specication
**The Digital Mixer Shower is supplied with 15mm push t connectors, DO NOT use any
other type of tting

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1
2
7
8
1. Digital Processor Unit Cover
2. Digital Processor Unit Fixing positions
3. Digital Processor Unit AC Power Lead
4. 15mm push fit connectors with Isolating valves
5. 15mm push fit connectors
6. Digital Processor Unit Inlets (HOT & COLD)
7. Digital Processor Unit Outlets*
8. Digital Processor Unit Data Cable connector
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9. Digital Controller
10. Controller Fixing Bracket
11. 10m Data Cable
*(The number of outlets will vary depending on the configuration of the Digital Mixer
Shower purchased).
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Main components

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The installation MUST BE carried out in accordance with these instructions, and
MUST BE undertaken by a qualied competent person.
The Digital Mixer Processor unit may be installed in a loft space, under the bath or in a
convenient cupboard space, provided there is enough room for maintenance. Safe and easy
access to the Digital Mixer Processor unit should be available at all times.
When planning the installation, if you are using the wired connectivity ensure that the
distance between the Digital Mixer Processor unit and Digital Control Panel is within the
range of the 10m data cable supplied, ensuring that the data cable routing is taken into
consideration.
Ensure that the Digital Mixer Processor unit is installed in a position that will minimise
the length of pipe run between the Digital Mixer Processor outlets and the showerhead/
accessory fittings.
The length of pipework running from the Digital Mixer Processor unit to the showerhead/
accessory fittings will have an effect on the showering temperature and the response time
when changing the showering temperature on the Digital Control Panel. The shorter the
length of pipework the better the Digital Mixer Processor unit will respond.
When installing the Digital Mixer Processor unit in an area not regularly accessed,
consideration for potential leaks must be taken into account.
While such events are unlikely, it is advisable to periodically check the installation for traces
of water on or around the processor unit. If possible site the Digital Mixer Processor unit in
a location where any leak would be contained or routed to avoid areas sensitive to water
damage.
Isolation valves are integrated into the push connection fittings supplied for the hot & cold
inlets, ensure that after installation these valves are left in the fully open position as failure
to do this will result in poor flow performance from the Digital Mixer Shower.
The shower MUST NOT be positioned where it will be subjected to freezing
conditions.
All pipe work MUST be rigidly supported to avoid any strain on the connections and
vibrations during use.
Long inlet pipework (dead-legs) should be kept to a minimum to avoid showering
temperature fluctuations
DO NOT connect the Digital Processor unit to a gravity hot supply and a mains cold supply
(or vice versa).
The pipework should be installed such that the flow is not significantly affected by other
taps and appliances being operated elsewhere on the premises.
There are no user-serviceable components beneath the cover of the Digital
Processor unit.
General installation
information

13
High pressure system – Instantaneous hot water systems, e.g.
combination boilers (Fig.1)
The high pressure Digital Mixer Processor unit MUST be installed with a multipoint gas
water heater or combination boiler of a fully modulating design (i.e. where the water draw-
off rate indirectly controls the gas flow rate to the burner).
A drop tight pressure reducing valve MUST be fitted if the supply pressures exceed 500kPa
(5 bar) running.
An expansion vessel MUST be fitted, (and regularly maintained) if any form of backflow
prevention device is fitted ie. PRV. This will ensure that excess expansion or pressure pulses
Important if using wireless connected devices
Metal objects such as steel baths, cold water storage tanks, hot water cylinders, radiators,
foil lined plaster board and even thick brick walls can all dramatically reduce the wireless
operational range.
Interference from other wirelessly controlled devices and radio signals can dramatically
reduce the ability of the wireless Digital Mixer Shower to maintain a good, consistent
wireless signal. This may include mobile phones, cordless phones, radio controlled toys,
wireless doorbells etc.
If you encounter difficulty whilst setting up the wireless connectivity of the Digital Mixer
Shower, ensure all other radio interference is temporary switched off.
Failure to follow these wireless connectivity guidlines can result in poor, intermittent or
failure of the communication between the Digital Control panel and Digital Mixer Processor
unit.
Typical suitable
installations
CH flow
Cold
mains
supply
Hot water
CH return
Processor Unit
Stop
tap
Mini
Expansion
vessel
Pressure
reducing valve
Combination
boiler
Kit
Control
panel
Fig.1
do not damage the product. 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.
Combination boilers are not always able to
supply an adequate ow rate of hot water,
particularly in winter, Triton recommends
tting a ow regulator (supplied with
the Shower) into the Hot inlet of the High
Pressure Digital Processor Unit prior to
installation. Refer to the table for details
(see Fig.2).

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If using the Warm Up feature of the Remote Start/Stop Switch (optional accessory) with a
instantaneous water heater appliance the user may experience a brief temperature variation
upon restart. This is due to the way in which a combination boiler operates, such that the
boiler will turn off after the warm up process has been completed. When restarted, the
processing unit will release a cold slug of water followed by a hot slug as the hot water
supply stabilises.
High pressure system – Unvented mains pressure cylinders (Fig.3)
The high pressure Digital Mixer Processor unit MUST 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 500kPa (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.
Typical suitable
installations
Flow
Regulator
Flow
Regulator
Housing
Inlet
Filter
O Ring
Seal
Inlet
Pipe
Hot
Inlet Nut
Fig.2
Boiler Rating Regulator
24 to 30kW 7 L/min White/
Green
30 to 36kW 9 L/min White/
Orange
36kW + None required
To t ow regulator
1. Unscrew the hot inlet nut and remove the inlet pipe, O ring seal, inlet lter and ow
regulator housing.
2. Fit the ow regulator into the ow regulator housing.
3. Ret the ow regulator housing, Inlet lter, O ring seal and inlet pipe, secure with the hot
inlet nut. Note: the hot inlet nut only requires to be hand tightened.

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Processor Unit
Kit
Service
valves
Balanced cold mains supply
Cold mains supply
Expansion
vessel
Pressure
reducing valves
Stop tap
Unvented
hot water
storage unit
Safety devices
not shown
Control
panel
Fig.3
Blender
valve
Flow
Cold mains
supply
Hot
water
Stop tap
Expansion
vessel
Pressure
reducing
valve Return
Service valves
Processor unit
Boiler
Kit
Control panel
Fig.4
High pressure system – Mains pressurised thermal store systems
(Fig.4)
The high pressure system MUST be fitted with a tempering valve (blender valve).
The appliance must be capable of raising the temperature of the incoming water to a
minimum of 55°C and delivering a flow rate of not less than 8 L/minute
A drop tight pressure reducing valve MUST be fitted if the supply pressures exceed 500kPa
(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).
Typical suitable
installations

16
100mm
minimum
Hot water
cylinder
Digital Mixer
Processor unit
Kit
Service
valves
Cold supply
Hot
supply
Cold
water
mains
supply
Drain
valve
Gate
valve
Other
draw-offs
Stop valve
Cold water
cistern
Digital
Control
Panel
Draw-off must point
down to avoid airlock
issues.
Alternative
supply (must
be below vent
pipe tee)
Fig.5
Only install the low-pressure
Digital Mixer Processor with a
gravity fed system. Never install
a high-pressure digital mixer
shower with a gravity fed system
Low pressure system – Gravity fed systems (Fig.5)
The low pressure Digital Mixer Processor unit MUST be fed from a cold water cistern and
hot water cylinder providing nominally equal pressures.
For the operation of the shower only, it is recommended that the cold water storage cistern
is capable of holding at least 114 litres (25 gallons). Where other hot and cold outlets are
likely to be in use simultaneously, the storage capacity should be increased to 228 litres (50
gallons) in accordance with BS EN 806.
IMPORTANT: Pipework layouts and connections MUST be such that other draw-offs will
not effect water supplies to the digital mixer processor unit, shared supplies may lead to air
locking or water starvation. It is therefore best practice to have independent hot and cold
supplies to the digital mixer processor unit.
If the hot water draw-off is incorrectly positioned, air may be drawn into the hot supply
from the vent pipe causing spluttering, temperature fluctuations at the showerhead.
Any draw-off for the processor unit must point DOWN (to avoid air-lock problems) and
must be BELOW the vent pipe tee.
Failure to correctly position the draw-off will result in poor performance or other problems
with the Digital Mixer Processor unit.
Typical suitable
installations
IMPORTANT: The minimum head for
operation of the Digital Mixer Processor
unit is 100 mm. For correct operation the
Digital Mixer Processor unit must not be
sited more than 5 metres away from the
hot water cylinder.

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The Digital Mixer Processor unit MUST only be positioned as shown.
The Digital Mixer Processor unit can be mounted on a horizontal surface in any orientation
(Fig.6).
When mounting on a vertical surface the processing unit outlet MUST be at the bottom
(Fig.7). Failure to position the unit correctly could result in a significant reduction in
performance.
Decide on the position for the Digital Mixer Processor unit. Position the Digital Mixer
Processor unit in a dry, well ventilated area.
The Digital Mixer Processor unit MUST always be positioned either flat on a suitable surface
or on a wall so that there is easy access for installation and maintenance.
Mark the four locating screw points for the base. If fixing to brick or a stud partition drill
and plug the wall. (The wall plugs provided are suitable for most brick walls — use an
appropriate masonry drill, but if the wall is plasterboard or a soft building block, you must
use suitable wall plugs and an appropriate drill bit). Secure the Digital Mixer Processor unit
in position using the 4 screws supplied (Fig.8)
Hot
& Cold
Inlets
Outlets
Ensure sufcient space is left surrounding
the processor unit to allow for pipework,
connections and
maintenance
Fig.6
Inlets and Outlets
MUST be
at the bottom
Fixing
Screws
(x4)
Fig.8
IMPORTANT
If wall mounting the Digital
Mixer Processor unit the out-
lets MUST always be at the
BOTTOM (Fig.7)
Fig.7
Mixer processor
installation

18
If the Digital Mixer Processor unit is installed in a loft area the following requirements must
be met for future servicing purposes:
a. There must be no risk of the Digital Mixer Processor unit or water pipe becoming frozen.
b. The Digital Mixer Processor unit MUST NOT be covered with any form of insulating
material that may give rise to electrical circuits overheating during periods of high
ambient temperature.
c. A safe means of access must be provided into the loft, e.g. via a fixed loft ladder.
d. The Digital Mixer Processor unit MUST be installed in an accessible and safe location.
e. Ceiling joists MUST be adequately boarded to provide safe and unobstructed access to,
from and around the Digital Mixer Processor unit.
f. There MUST be adequate lighting in the loft for servicing purposes.
Note: If mounting the Digital Mixer Processor unit in a loft it is worth considering building a
catchment tank with an overflow pipe directed to an external point. In the unlikely event of
a problem occurring with the Digital Mixer Processor unit this will give a visual indication of
any failure.
Plumbing connections
Plumbing/Pipe installation to be carried out before electrical wiring
installation
DO NOT use jointing compounds on any pipe fitting for the installation.
DO NOT solder fittings near the shower unit as heat can transfer along pipework and
damage components.
Fig.9 shows the plumbing connections layout.
Hot
Inlet
Outlet Pipe work*
Inlet Pipe work
Cold Inlet
Fig.9
*The number of outlets connections will vary depending on the configuration of the Digital Mixer Shower
purchased.
Mixer processor
installation

19
IMPORTANT: The fittings on the inlet and outlets are the push-fit type. The pipework must
be cut with a pipe cutter and all burrs and rough edges removed from the end of the tube.
The fittings can be used with copper and plastic pipe.
If using chrome plated copper pipe, remove the first 25 mm of plating completely from the
connecting surfaces. If not completely removed then the collet will not grip the pipe and
under pressure the pipe may be forced out.
Before completing the connection of the water supplies to the inlets of the Digital Mixer
Processor unit, flush out the pipework to remove all swarf and system debris.
1. Turn off the water supplies either at the mains stop valve or the isolating stop valve.
2. Having decided on the position of the unit and direction of pipe entry, complete the
pipework to the Digital Mixer Processor unit.
3. Check for leaks before connecting the pipework to the Digital Mixer Processor unit.
4. Insert the incoming pipework into the 15 mm push-fit connectors (Fig.10).
5. Check that the isolating valves on the inlet connectors are fully open (Fig.11).
For products that have more than one outlet then the above procedure of fitting the pipe
work will need to be conducted for each outlet.
All pipework should be insulated. DO NOT attempt to insulate or
cover the Digital Processor unit
15mm PUSH FIT
CONNECTOR
INCOMING
PIPE
ISOLATING VALVE
Fig.10
ON
OFF
Fig. 11 ISOLATING
VALVE
Mixer processor
installation

20
Mixer processor
installation
Before any electrical work is attempted, ensure the electricity supply
is isolated at the mains switch.
Electrical installation may only be carried out by a qualied person.
Electrical connections
Connect the Digital Processor Unit AC Power Lead to a double pole 3Amp switched
fused spur (Fig.12), incorporated in the wiring circuit, in accordance with current wiring
regulations.
The 3Amp fused spur MUST be located in a dry, easily accessible position. Access to
the fused spur is required for servicing and maintenance
Neutral cable marked NBlue
Live cable marked LBrown
DO NOT switch on the electricity supply until all the pipe connections have been tested for
leaks and the commissioning procedure has been followed.
3A Switched
Fused Spur Box
Ring Main Cable
Digital Processor
Unit AC Power Lead
Fig.12