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BUILT IN DUAL CONTROL
SHOWER VALVE
Installation and User Guide
These instructions are to be left with the user
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CONTENTS Introduction ............................................................................................. 3 Safety : Warnings .................................................................................... 3 Pack Contents ......................................................................................... 4 Dimensions ............................................................................................. 5 Specifications..................................................
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INTRODUCTION The Mira Discovery Built in Dual Control Shower Valve is a thermostatic shower control with independent selection for temperature and spray force and is suitable for connection to concealed pipework. SAFETY : WARNINGS This Discovery Thermostatic Shower Control is precision engineered and should give continued safe and controlled performance, provided: 1. It is installed, commissioned, operated and maintained in accordance with manufacturers recommendations. 2. Periodic attention is
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PACK CONTENTS Tick the appropriate boxes to familiarize yourself with the Discovery Thermostatic Shower Control part names and to confirm that the parts are included. 1 x Control Assembly 1 x Shower Valve fitted to the Building-in Shroud 3 x Compression Nuts 1 x O-Key 3 x Wall Plugs 3 x Olives 3 x Securing Screws 1 x Hose Washer x Flow Regulator 2 x M5 x 40 Screws (12 litres per minute) 1 x Hexagon Key 3 x M5 x 8 Screws 3 x Mounting Brackets 1 x Customer Support Card 4
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DIMENSIONS 186 mm 47 mm 64 - 82 mm 27 mm 108 mm Pipe Centres Note! All Dimensions are Nominal 5 231 mm
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SPECIFICATIONS Pressures Maximum Static Pressure: 10 Bar. Minimum Maintained Pressure (Gas Water Heater): 1.0 Bar. (for optimum performance initial supplies should be nominally equal). Minimum Maintained Pressure (Gravity System): 0.1 Bar. (0.1 bar = 1 Metre head from base of cold tank to the outlet of the shower handset). Maximum Maintained Pressure: 5 Bar. Temperatures Factory Pre-set (Blend) Shower: 43°C. Optimum Thermostatic Control Range: 35°C - 45°C. (Achieved with supplies of 15°C cold, 6
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Connections Standard connections are: Hot-Left, Cold-Right, Top-Outlet, if reversed inlets are required refer to sections: ‘Installation’ and ‘Reversed Supplies’. Inlets: 15 mm Compression. Outlet: 15 mm Compression. Thermostatic Shut-down Thermostat will shut off Hot Supply Within 2 Seconds if Cold Supply Fails. (Achieved only if the hot supply temperature is greater than 10°C above the set blend temperature). 7
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INSTALLATION REQUIREMENTS Key to symbols Isolating valve Twin Impeller Pump Mixing Valve Single Impeller Pump Overflow Indicator Tempering Valve Pressure Reducing Valve Mini Expansion Vessel Note! The Shower Control is compatible with the following installations. Gravity fed system The shower MUST be fed from a cold water cistern and hot water cylinder providing nominally equal pressure. Gas heated system The shower MUST be installed with a gas water heater or combination boiler of a fully modul
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Unvented mains pressure system The shower can be installed with a unvented, stored hot water cylinder. Mains pressurised instantaneous hot water system (thermal store) The shower can be installed with systems of this type with balanced pressures. Note! Flow regulator recommended to be installed, refer to the ‘Discovery Fittings Installation Manual’. Pumped system The shower can be installed with an inlet pump (twin impeller). The pump must be installed on the floor next to the hot water cylinder
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INSTALLATION General Installation must be carried out in accordance with these instructions, and must be conducted by designated, qualified and competent personnel. The installation must comply with the “Water Supply Regulations 1999 (Water Fittings)” or any particular regulations and practices, specified by the local water company or water undertakers. Note! Make sure that all site requirements correspond to the information given in the section: ‘Specifications’. Caution! The shower must not be
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Installation Methods The Discovery Thermostatic Shower Control can be installed using Rear Fixing Points on the Body, or by using the Securing Brackets (supplied) on the Front Face of a Solid Wall or Stud Partition, or on the Rear Face of a Laminated Panel. For installation from the front face into a Solid Wall or Stud Partition using the Securing Brackets, go to section: ‘Installation, 1. Solid Wall or Stud Partition (Using Securing Brackets - Mounting off Front Face)’. For installation from th
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1. Solid Wall or Stud Partition (Using Securing Brackets - Mounting off Front Face) 1.1 Remove the three securing screws and remove the shower valve from the building-in shroud (retain the screws for later use). 170 mm Max 1.2 Mark the position of the shower valve, a cut out 150 x 170 mm (Max) is required. 150 mm Max Note! Use a spirit level to make sure that the hole cutout will be horizontal and vertical. Outlet Pipe BIR 1.3 Mark the routes for the hot and cold supply pipework at 108 mm centre
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Rotate for Suitable Backplate 1.7 Fit the three securing brackets to the Fixing Point Securing Holes shower valve. Important! Make sure that the correct holes are used, otherwise the backplate will not fit (refer to illustration). Note! The brackets can be rotated for suitable fixing points. 1.8 Mark the positions of the countersunk fixing holes on the wall. Note! Make sure that they do not interfere with the pipework. 1.9 Drill three 6 mm holes for the wall plugs. Backplate 1.10 Fit the wall pl
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1.14Re-fit the building-in shroud to the shower valve using the three fixing screws. 1.15 Using the building-in shroud as a guide for the finished wall thickness, finish the wall. Caution! Make sure that the finished wall is within the minimum and maximum limits otherwise the control components will not fit correctly. 1.16 Remove the building-in shroud. Retain the three securing screws for securing the backplate. 1.17Fit the shower fittings, refer to your fittings installation and user guide for
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2. Solid Wall or Stud Partition (Using Rear Fixing Points on Shower Control) 2.1 Refer to section: ‘1. Solid Wall or Stud Partition Installation (Using Securing Brackets - Mounting off Finished Wall Front Face)’ and follow instructions Surface 1 to 4. 2.2 Cut away the plasterboard or brick work to the required depth. Important! This depth ‘X’ will depend on the finished wall thickness e.g. tiles or facia board. Refer to the table for this measurement. For stud partitions depth ‘X’ refers to the
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2.3 Mark the positions of the fixing screw Outlet Pipe holes on the wall. to Fittings 2.4 For solid walls drill two 6 mm holes for the wall plugs. 2.5 Fit the wall plugs (supplied) and fix the shower valve to the wall with the securing screws (supplied). Note! For stud partition installations alternative fixings may be required (not supplied) to fix the shower valve to the rear face of the wall cavity or to a timber noggin. Important! At this point position the building-in shroud onto the shower
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3. Laminated Panel (Using Securing Brackets - Mounting off Rear Face) Note! For laminated panels the shower valve must be positioned from the rear of the panel. Panel thickness must be between 4 and 22 mm (if a thicker panel is used it will be necessary to recess the securing brackets 170 mm Max into the rear of the panel). Important! Make sure that there is a minimum clearance of 64 mm behind the laminated panel to house the shower valve. 3.1 Remove the three securing screws and 150 mm Max remo
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3.6 To assist in marking the positions of the fixing holes, reverse the shower valve and fit the building in shroud through the cutout in the front of the panel. Mark the positions of the M5 M5 Fixing fixing holes in the two top brackets Holes only. Important! Make sure that the correct holes are used (refer to illustration). Warning! Do not drill any holes for the bottom securing bracket. 3.7 Drill the two 5 mm holes for the fixings (countersink the holes at the front). 3.8 Remove the building-
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Control Assembly 1. Pull off the temperature knob. Concealing Plate 2. Carefully separate the concealing plate from the backplate. Note! Use a screwdriver in the cutout to assist separation. Temperature Knob 3. Fit the backplate to the shower control and secure with the three securing screws (removed from the building-in shroud). Make sure that the seal is fully compressed on the finished wall Cutout surface. Note! If the finish is particularly uneven (i.e. due to grout lines), apply a small amo
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5. Align the flow control lever so that the Push up and Latch lever is pointing up (refer to illustration). Align Flow Lever over the Top of the as Shown 6. Slide the flow control lever and Backplate concealing plate over the flow control hub. 7. Latch the top of the concealing plate over the top of the backplate. Note! You will need to push the concealing plate up and over the lip on top of the backplate (refer to illustration). 8. Clip the bottom of the concealing plate into position. ‘Click’
