INTRODUCTION This book contains all the necessary fitting and operating instructions for your MX thermostatic concentric mixer shower. Please read these instructions carefully. Read through the whole of this book before beginning your installation. The shower installation MUST be carried out by a suitably competent person after reading these instructions.
The British Burns Association recommends 37˚C to 37.5˚C as a comfortable bathing temperature for children. In premises covered by the Care Standards Act 2000, the maximum mixed water outlet temperature is 41˚C. Metal surfaces on the hot supply may become hot during operation. Arrange to have the mixer valve regularly serviced by a suitably qualified person.
INSTALLATION WARNING! The mixer valve should be fitted only after all the pipework has been installed and ensure no pipes or wires are behind where the screws will be required. Do not modify or use jointing compounds on any of the pipe fittings. Do not solder fittings near the mixer valve as heat can damage the valves or seals.
• Concealed Valve with Wall Arm - Atmos Zone • Concealed Valve with Wall Arm - Atmos Zinc • Concealed Valve with Ceiling Arm - Atmos Zinc Consult the illustration below to make sure you check from the component list that all the parts for your system are supplied.
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PRESSURE BALANCING Pressure balancing when the feed water pressure is different between hot and cold feeds. The thermostatic mixer valve is designed to work best when the feed pressures of both hot and cold water are the same. If there is a difference in pressure it will cause the flow of water through the valve to pulse rather than being a steady flow.
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Hot Water Hot Water CONCEALED VALVE FITTING FOR Atmos Zinc/Zone A circular hole between 140mm and 168mm should be enough to fit the mixer valve. The valve should be fixed to the wall between 50mm and 70mm below the finished surface of the shower (See Fig 10).
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Before assembling the valve controls identify all the parts and check that red markings on the thermostatic cartridge are inline. ASSEMBLING FRONT OF VALVE FOR Atmos Zinc Fit the flow control knob onto the large spline, aligning arrow with the line on the line on the main body with the lever pointing down (See Fig 17).
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Control Control Knob Knob Stop Ring WALL ARM FITTING FOR Atmos Zinc/Zone Establish position of wall arm to suit users requirements (See Fig 20). When fitting the wall arm drill a suitable 19mm hole through the wall. NOTE: When fitting to stud wall a bearer between the uprights maybe required.
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WALL ARM FITTING FOR Atmos Zinc/Zone Establish position of wall arm to suit users requirements (See Fig 22). When fitting a ceiling arm you will have to fit a cross bearer between two joists. Drill suitable 19mm hole through ceiling (See Fig 23).
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COMMISSIONING AND ANNUAL MAINTENANCE TESTING On commissioning carry out the following checks and tests: • All the pipe work has been flushed through before fitting the valve • The valve you have purchased matches the installation • The supply pressures and temperatures are checked and all are in the range specified in the instructions • The isolation valves and strainers are fitted and clean of any unwanted material and do not restrict flow Ensure both isolation valves are fully open. Turn the temperature control to cold and turn the flow on.
PROBLEM POSSIBLE CAUSE SUGGESTED ACTION Adjust the temperature 1. Water too hot. A Temperature control is not control - this is only a job for a correctly commissioned. suitably qualified person. B Not enough cold water flowing Turn temperature control clockwise.
5. Shower will A Flow control cartridge worn. Renew flow control cartridge not shut off. see parts list. COMPONENTS LIST Atmos Zone (HLZ) Atmos Zinc (HMG/HMQ) Description Quantity Description Quantity Brass Concentric Mixer Valve Brass Concentric Mixer Valve Filter Washer...
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ACCESSORIES KIT SPARE PARTS Atmos Zinc 1. Fixed Overhead 2. Wall Arm 3. Ceiling Arm 4. Valve only 36HLW VALVE SPARE PARTS LIST 5. Fitting Kit 36HLW 6. Cartridge All in one 7. Square Cover Plate...
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ACCESSORIES KIT SPARE PARTS Atmos Zone 1. Fixed Overhead 2. Valve only 36HLW VALVE SPARE PARTS LIST 3. Fitting Kit 36HLW 4. Cartridge all in one 5. Cover Cover Plate...
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MX Group at their discretion undertake to repair or replace without charge, provided the product has been properly installed, maintained and operated in accordance with the operating instructions. This product must not be modified, repaired or taken apart except by a person authorised by MX Group. What is not covered by this guarantee: Any product found to be defective during this period, as the result of misuse or damage, or the effects of scaling, will not be covered by this guarantee.
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This guarantee applies only to the product itself and any liability on behalf of MX Group is limited to the cost of the product. If a product is deemed to be of faulty manufacture MX Group will at their discretion replace or repair the product. Any related consequential loss or damage is excluded.
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When providing information to MX Group you understand that you are doing this subject to our terms and other policies (including data protection) we have in place from time to time, copies of which are available on our website www.mx-group.com...
MX GROUP GUARANTEE SERVICE POLICY In the event of you needing to contact the MX Group Customer Care Department, the following procedure should be followed: Before telephoning on 0845 505 2211 the MX Group Customer Care Department you should ensure you have the model number (printed on the valve) and date and proof of purchase your contact details and the postcode where the unit is installed.
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