Shower Manual

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Transcript of Shower Manual

BUILT IN DUAL CONTROL SHOWER VALVE Installation and User Guide

These instructions are to be left with the user 1

CONTENTSIntroduction ............................................................................................. 3 Safety : Warnings .................................................................................... 3 Pack Contents ......................................................................................... 4 Dimensions ............................................................................................. 5 Specifications .......................................................................................... 6 Pressures ............................................................................................ 6 Temperatures ....................................................................................... 6 Flow Rates ........................................................................................... 6 Connections ......................................................................................... 7 Installation Requirements ...................................................................... 8 Installation ............................................................................................. 10 General .............................................................................................. 10 Installation Methods ........................................................................... 11 1. Solid Wall or Stud Partition (Using Securing Brackets - Mounting off Front Face) ................. 12 2. Solid Wall or Stud Partition (Using Rear Fixing Points on Shower Control) ............................ 15 3. Laminated Panel (Using Securing Brackets - Mounting off Rear Face) .................. 17 Control Assembly .............................................................................. 19 Reversed Supplies ............................................................................. 21 Commissioning ..................................................................................... 22 Maximum Temperature Setting .......................................................... 22 Operation ............................................................................................... 23 Fault Diagnosis ..................................................................................... 24 Maintenance .......................................................................................... 25 General .............................................................................................. 25 Lubricants .......................................................................................... 25 Cleaning ............................................................................................. 25 Filters ................................................................................................ 25 Spare Parts ............................................................................................ 26 Customer Service .................................................................... Back Page

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INTRODUCTIONThe 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 : WARNINGSThis 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 given, when necessary, to maintain the product in good functional order. The function of a thermostatic mixing valve is to deliver water consistently at a safe temperature. In keeping with every other mechanism, it cannot be considered as functionally infallible and as such, cannot totally replace a supervisors vigilance where that is necessary. Provided it is installed, commissioned, operated and maintained within manufacturers recommendations, the risk of failure, if not eliminated, is reduced to the minimum achievable.

If you experience any difficulty with the installation or operation of your new shower control, then please refer to "Fault Diagnosis", before contacting Kohler Mira Limited. Our telephone and fax numbers can be found on the back cover of this guide. 3

PACK CONTENTSTick 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 Olives

3 x Wall Plugs

1 x Hose Washer x Flow Regulator (12 litres per minute) 1 x Hexagon Key

3 x Securing Screws

2 x M5 x 40 Screws

3 x M5 x 8 Screws 3 x Mounting Brackets 1 x Customer Support Card

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DIMENSIONS

186 mm

47 mm

64 - 82 mm

27 mm

108 mm Pipe Centres

Note! All Dimensions are Nominal

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231 mm

SPECIFICATIONSPressures 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: 43C. Optimum Thermostatic Control Range: 35C - 45C. (Achieved with supplies of 15C cold, 65C hot and nominally equal pressures). Max. Hot Supply: 85C. Recommended Hot Supply: 60C - 65C. Min. Differential between Hot Supply and Outlet Temperature: 10C. Cold Water Range: 1C - 20C. Flow Rates Typical Flow Rates - Mira Discovery Dual Control with Adjustable Fittings:18 16 14Flow Rate (L/Min)

With 12 L/Min Flow Regulator Fitted

12 10 8 6 4 2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Start (Outer Spray) Soothe (Middle Spray) Force (Inner Spray) Rigid (Fixed Spray)

Supply Pressure (Bar)

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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 10C above the set blend temperature).

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INSTALLATION REQUIREMENTSKey to symbols Isolating valve Mixing Valve Overflow Indicator Pressure Reducing Valve Twin Impeller Pump Single Impeller Pump Tempering 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 d The shower MUST be installed with a de gas water heater or combination boiler n e of a fully modulating design. mm o Note! Flow regulator recommended to be ec installed, refer to the Discovery Fittings rR toGuide. However, Installation and User la it is possiblegu following installation of a flow regulator that the flow rate is reduced Re too ow for the boiler to ignite. If this is much Fl the case remove the flow regulator.

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Unvented mains pressure system d The shower can be installed with a de n unvented, stored hot water cylinder. me

w Flo

om ec R tor la gu Re

Mains pressurised instantaneous d hot water system (thermal store) de The shower can be installed withen m systems of this type with balanced om pressures. c Note! Flow regulator recommended to be Re r installed, refer to theto a Discovery Fittings l Installation Manual. gu

w Flo

Re

Pumped system The shower can be installed with an inlet ed pump (twin impeller). The pump must be nd e installed on the floor next to the hot water mm cylinder. o ec to be Note! Flow regulator recommended rR installed, refer to theto Discovery Fittings Installation Manual. ula

w Flo

g Re

90

30-60 Air Separation

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INSTALLATIONGeneral 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 installed in an area where it may freeze. For stud partitions alternative fixings may be required. 1. Isolating valves must be installed close to the valve for ease of maintenance. 2. Pipework must be rigidly supported and avoid any strain on the connections. 3. Pipework dead-legs should be kept to a minimum. 4. Supply pipework layout should be arranged to minimise the effect of other outlet usage upon the dynamic pressures at the valve inlets. 5. Inlet and outlet threaded joint connections should be made with PTFE tape or liquid sealant. Do not use oil-based, non-setting joint compounds. 6. To eliminate pipe debris it is essential that supply pipes are thoroughly flushed through before final connection. 7. Determine the route for the hot and cold supply pipework and for the outlet pipework. When connecting to the biv shower fittings it is recommended that the outlet be positioned above and to one side of the shower control. This is to prevent the flexible hose from obstructing the temperature and flow knobs of the shower control. 8. Decide on a suitable position for the shower control. The position of the shower control and