Bristan Opac Series Mounting instructions

Please keep this booklet for future
reference.
Installer, when you have read these
instructions please ensure you leave them
with the user.
Installation Instructions
and User Guide
Opac Thermostatic Bath
Fillers
Models covered: OP THBF DMH C,
OP THBF DML C, OP THBF WMH C & OP
THBF WML C

2
Contents
Thank you for choosing Bristan, the UK’s leading showers and taps expert.
Your Bristan bath filler is a thermostatic mixer incorporating a wax capsule thermostat
to ensure constant water temperatures. These instructions are for your guidance to a
safe and successful installation and should be left with the user.
All products manufactured and supplied by Bristan are safe providing they are installed
correctly and receive regular maintenance in accordance with these instructions.
Important Safety Information................................................... 3
General Information ................................................................. 4
Product Features...................................................................... 5
Specifications ........................................................................... 6
Dimensions............................................................................... 7-8
Pack Contents .......................................................................... 9-12
Installation Requirements ....................................................... 13-16
System Requirements ......................................................... 13-14
WRAS IRN’s ......................................................................... 15
TMV3 .................................................................................... 16
Installation................................................................................ 17-20
Wall Mounted First Fix......................................................... 17-18
Wall Mounted Second Fix .................................................... 19
Deck Mounted Second Fix................................................... 20
Operating the Bath Filler ......................................................... 21
Commissioning......................................................................... 22
In-Service Testing .................................................................... 23-24
Maintenance ............................................................................. 25-27
Cartridge Maintenance ....................................................... 25
Adjusting the Temperature ................................................. 26
Thermal Disinfection Flushing ........................................... 27
Troubleshooting........................................................................ 28-29
Guarantee ................................................................................. 30-31
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

3
Important Safety Information
•Please read these instructions thoroughly and retain for future use.
•All products manufactured and supplied by Bristan are safe provided they are installed,
used correctly and receive regular maintenance in accordance with these instructions.
• If you are in any doubt about your ability to install this bath filler safely you must
employ the services of an experienced qualified plumber.
•These fittings need to be installed in accordance with, and meet the requirements of
the Water Supply (Water Fittings) Regulations 1999 and Scottish Byelaws 2004.
•Warning: Do not operate the bath filler if you suspect it is frozen. Do not site the
bath filler where it might be subjected to freezing conditions.
•Remove all packaging and check the contents for damage before starting installation.
•Before starting any installation please consider the following: Before drilling into
walls, check that there are no hidden electrical wires, cables or water supply pipes.
This can be checked with the aid of an electronic detector.
•If power tools are used do not forget to: - Wear eye protection
- Unplug equipment after use
•Fitting isolating valves to the inlet feeds is required for ease of maintenance.
•Warning: Before installing the new bath filler it is essential that you thoroughly
flush through the pipework in order to remove any remaining swarf, solder, etc.
Failure to carry out this procedure could cause problems or damage to the workings of
the bath filler.
•This product must not be modified in any way as this will invalidate the guarantee.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

4
General Information
Operating pressure range: Minimum 0.2 bar, Maximum 5.0 bar.
Maximum static pressure: 10.0 bar.
This product has been tested to the TMV3 scheme for use in Healthcare and Commercial
situations and performs to the requirements of NHS Specification D08. It also satisfies
the requirements of the water supply (water fittings) regulations 1999 and current
bylaws.
BS 6700 recommends 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 build up of lime scale in hard water areas.
If the fitting is installed at low pressure (tank fed), then the minimum distance from
the bath filler to the underside of the cold tank should be at least 2 metres to ensure
adequate performance.
Note: Nominally equal (balanced) inlet supply pressures are recommended for optimum
performance.
This bath filler should be installed in compliance with the Water Regulations.
If in doubt, contact a registered plumber or your Local Water Authority or the Secretary
of The Institute of Plumbing, address as follows;-
The Institute of Plumbing,
64 Station Lane,
Hornchurch,
Essex, RM12 6NB
Tel:[phone]
Recommended Usage
Domestic Heavy
Commercial
Light
Commercial Health Care
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

5
Product features
1. Temperature Control
Adjustable temperature control.
Lift the control upwards to increase the
temperature.
Move the control downwards to decrease
the temperature.
2. Water Flow Control
Controls the amount or flow of water from
the bath filler.
Lift the control upwards to turn on and
increase the flow.
Move the control downwards to reduce the
flow and turn off.
3. Thermal Disinfection Flushing
In order to control the build up of bacteria
and to assist against legionella, this
TMV has a built in cleansing feature that
allows the mixed water passages to be
flushed with hot water without the need
to disassemble the bath filler or reset the
mixed water temperature.
4. TMV3 Approved
This bath filler has been tested to the
TMV3 scheme for use in Healthcare and
Commercial situations and performs to
the requirements of NHS Specification
D08.
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
1
2
Hot
Cold
On
Off

6
Specifications
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
Specifications
Inlet connections: OP THBF DMH: 3/4” BSP with 180mm between centres.
OP THBF DML: 3/4” BSP with 180mm between centres.
OP THBF WMH: 15mm compression with 150mm between centres.
OP THBF WML: 15mm compression with 150mm between centres.
Operating pressure range: Min. 0.2 Bar - Max. 5.0 Bar - Maximum recommended
imbalance between hot and cold supply should not exceed a ratio of 5:1.
Maximum Static Pressure: 10 Bar
Maximum outlet temp: Factory pre-set to 44°C
(can be re-set to suit site conditions). If the temperature is re-set to suit different site
conditions the valve will work adequately however the TMV3 scheme will not apply.
Supply requirements:
Minimum cold water supply temperature: 5°C.
Maximum cold water supply temperature: 25°C.
Maximum hot water supply temperature: 80°C.
(a maximum hot water supply temperature of 60 - 65°C is recommended for
ablutionary purposes)
Note: The inlet hot water temperature must be at least 10°C above the required blend
temperature (eg. water temperature 43°C: minimum hot supply 53°C).

7
312
Dimensions (mm)
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
115
160
180
97
280
150
73
170
215
OP THBF DML
OP THBF WML

8
280
150
52
73
215
312
160
52
Dimensions (mm)
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.
180
97
OP THBF DMH
OP THBF WMH

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Pack Contents - OP THBF WML
1Bath filler x1
2Wall mount fixing plate x1
3Olives x2
4Fixing bridges x2
5Rear covers x2
6Front covers x2
7Filter washers x2
8Inserts x2
9Wall plate fixings x4
1
2
4
5
6
8
9
3
7
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

10
Pack Contents - OP THBF DML
1Bath filler x1
2Threaded Tails x2
3‘O’ Rings x2
4Washers x2
5Backnuts x2
1
2
4
5
3
Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.