Related Manuals for Mira COMBIFLOW
Summary of Contents for Mira COMBIFLOW
- Page 1 MIRA COMBIFLOW SHOWER CONTROL Installation & User Guide These instructions are to be left with the user For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk...
-
Page 2: Table Of Contents
1. Rear Inlet Supplies (rising or falling concealed pipework) ....14 2. Exposed Inlet Supplies (rising or falling surface pipework) ..... 17 Combiflow B ..................22 3. Solid and dry-lined walls..............22 4. Stud Partitions and Shower Enclosures (Front Face) ..... 29 5. -
Page 3: Introduction
INTRODUCTION Thank you for purchasing a quality Mira product. To enjoy the full potential of your new product, please take time to read this guide thoroughly, having done so, keep it handy for future reference. The Mira Combiflow is a pressure balanced shower valve with lever control which maintains a constant outlet temperature irrespective of changes of inlet pressures as long as the inlet water temperatures remain the same. -
Page 4: Important Safety Information
IMPORTANT SAFETY INFORMATION Warning! Products manufactured by us are safe and without risk provided they are installed, used and maintained in good working order in accordance with our instructions and recommendations. When this shower is used with a fully modulating instantaneous multipoint water heater or combination boiler the flow must be sufficient to keep the boiler ignited. -
Page 5: Pack Contents Checklist
PACK CONTENTS CHECKLIST Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included. 1. Mira Combiflow Surface Mounted Shower Control 1 x Shower Control 1 x Cover Shroud 1 x Lever Handle... - Page 6 2. Mira Combiflow B Shower Control 1 x Concealing Plate 1 x Shower Control with Building-in Cover 1 x Foam Seal 1 x Mounting Plate Assembly 2 x Bracket 1 x Lever Handle Handle Plug 2 x M4 x 8 mm Screws 2 x No.
-
Page 7: Dimensions
DIMENSIONS 1. Mira Combiflow NOTE:- NOT TO SCALE - All dimensions are nominal and in millimetres 2. Mira Combiflow B 47 - 70 For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk... -
Page 8: Specifications
SPECIFICATIONS Mira Combiflow and Mira Combiflow B Pressure Range Minimum maintained pressure: 1.0 bar Maximum maintained pressure: 5.0 bar Maximum static pressure: 10 bar. Note! For optimum performance, the initial supply pressures should be nominally equal. Temperatures Hot and cold water supply temperatures MUST remain relatively constant. -
Page 9: Installation Requirements
1 bar, to keep the flow rate sufficiently high in order to ensure the gas flame stays lit. The Mira Combiflow is not suitable for installation as part of a gravity-fed plumbing system (i.e. in conjunction with a hot water cylinder and cold water storage cistern), unless used in conjunction with an inlet pump producing a maintained pressure of at least 1 bar. - Page 10 Key to symbols appearing throughout this guide Float operated valve Twin impeller inlet pump Tempering valve Stop or servicing valve Shower control Mini expansion vessel Warning or overflow pipe Non-return Valve Drop tight pressure reducing valve (PRV) Typical Suitable Installations Instantaneous multipoint water heaters and combination boilers The shower MUST be installed with a multipoint gas water heater or combination boiler of a fully modulating design (i.e.
- Page 11 Unvented mains pressure showers The shower can be installed with an unvented, stored hot water cylinder. Only a "competent person" as defined by the Building Regulations may fit this type of system. For packages 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 5 bar.
- Page 12 Mains pressurised instantaneous hot water shower, heated from a thermal store. Packages of this type, fitted with a tempering valve can be used. A drop tight pressure reducing valve MUST be fitted if the supply pressures exceed 5 bar maintained. An expansion vessel MUST be fitted (and regularly maintained) if any form of backflow prevention device is fitted, e.g.
- Page 13 General It is important that the system pressures are within the range specified for the Mira Combiflow (refer to section: 'Specifications'). If the system pressure is not known then the system pressure MUST be measured as explained in this section.
-
Page 14: Installation
INSTALLATION Combiflow 1. Rear Inlet Supplies (rising or falling concealed pipework) Read the section 'Installation Requirements' first. 1.1 Decide on a suitable position for the shower control. The position of the shower control and the shower fittings must provide a minimum gap of 25... - Page 15 1.4 Use a spirit level and pencil to mark the route of the hot and cold water supply pipes at 153 mm centres. Note! The Combiflow is supplied with inlet connections hot left, cold right and bottom outlet as standard. For...
- Page 16 1.10 Slide the compression nuts and olives over the supply pipes. Olive Compression 1.11 Locate the Combiflow shower control on to the pipes and hold it in position. Note! Make sure that the screws & wall plugs supplied with the product are used for mounting the shower.
-
Page 17: Exposed Inlet Supplies (Rising Or Falling Surface Pipework)
2. Exposed Inlet Supplies (rising or falling surface pipework) Read the section 'Installation Requirements' first. Hose Retaining Ring Rising Supplies 2.1 Decide on a suitable position for the 25 mm Minimum shower control. The position of the shower control and the shower fittings must provide a minimum gap of Spill-over Level 25 mm between the spill-over level of... - Page 18 Blanking Plugs 2.7 Fit the blanking plugs complete with 'O' seals, into the rear inlet nipple holes.Tighten the blanking plugs. 2.8 Locate the Combiflow shower control on to the wall. 'O' Seal Note! Make sure that the screws supplied with the product are used for mounting the shower.
- Page 19 153 mm centres. Use the installation template to make sure that the pipes are in the right position. Note! The Combiflow is supplied with inlet connections hot left, cold right and bottom outlet as standard. For installations with reversed hot and...
- Page 20 2.25 Locate the Combiflow shower control on to the wall. Flat Face For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk...
- Page 21 2.26 Use a suitable screwdriver to tighten the two screws through the body. The screws will hold the shower control in position. 2.27 Install the hot and cold supply pipes 35 mm from the finished wall at 153 mm centres. Use the installation template to make sure the pipes are in the right position.
-
Page 22: Combiflow B
For further information on the installation of the shower fittings refer to the Installation and User Guide. BIV Outlet BIV Outlet Note! The Combiflow B is supplied with inlet connections hot left, cold right and top outlet as standard. For Hot Inlet Cold Inlet... - Page 23 3.4 Remove the building in shroud. Note! If the Combiflow B is to be fitted Building in Shroud with top inlets then the bottom inlet compression fittings must be swapped using the quad key with the top inlet blanking plugs. Make sure all seals are fitted and components are tightened.
- Page 24 3.7 Mark the route of the inlet and outlet 6 mm Minimum Depth pipes. 3.8 Remove the plaster and brick/block for Finished Wall the shower control to a depth between Surface 47 and 70 mm from the finished surface of the wall, with a finished wall surface thickness between 6 and 23 mm.
- Page 25 To make sure that the shroud fully locates over the body of the Combiflow B, the tabs on the building- in shroud MUST be bent inwards where the shroud meets the mounting brackets (refer to illustration). Note! If using the fixing holes on the...
- Page 26 Failure to do so may result in product malfunction. Note! The Combiflow is supplied with inlet connections hot left, cold right and top outlet as standard. For installations with reversed hot and cold refer to section: 'Reversed inlet connections'.
- Page 27 Note! Before turning on the water supplies refer section: Tiling Area 'Commissioning and Control Assembly Installation'. 3.15 Turn on the water supplies and check for any leaks. Alternative 3.16 Refit the building-in shroud removed Rear Fixing earlier. Secure the shroud in position with the screws.
- Page 28 3.19 Remove the backplate from the concealing plate and fit in position with Back Plate the screws provided. Note! For shallow building in depths and front face panel mounting use the two short M5 x 25 mm screws (provided) in line with the inlet pipework. Do not overtighten the screws as this may distort the valve position within the wall.
-
Page 29: Stud Partitions And Shower Enclosures (Front Face)
4. Stud Partitions and Shower Enclosures (Front Face) Read the section “Installation Requirements” first. The built-in shower control is supplied with support brackets that can be used to install the shower control into the front face of a stud partition wall structure or shower enclosures. -
Page 30: Laminated Panels And Shower Enclosures (Rear Face)
5. Laminated Panels and Shower Enclosures (Rear Face) Read the section 'Installation Requirements' first. The built-in shower control is supplied with support brackets that can be used to install the shower control onto the rear face of a laminated panel or preformed shower cubicle. - Page 31 5.6 Remove the building-in shroud and fix the support brackets and valve in position using the two M4 x 30 mm Alternative Rear Fixing screws (supplied). 5.7 Align the hot and cold supply and outlet pipes with the valve but do not secure the pipes.
-
Page 32: Reversed Inlet Connections
REVERSED INLET CONNECTIONS The Combiflow exposed is supplied with back inlet connections hot left, cold right and bottom outlet. Flow Regulator Cold The Combiflow B is supplied with bottom inlet connections hot left, cold right and top outlet. Outlet Flow Regulator Cold 1.1 If the hot and cold inlet connections have been reversed during installation and... - Page 33 The shower control should be installed with hot on the left and cold on the right. If the inlet positions are changed, i.e. top inlets are used then the internal cartridge must be turned through 180° to enable the lever control to operate correctly. The following procedure must be performed: 1.2 If the water supply has been connected and turned on, isolate the supplies and operate the control lever to relieve the pressure.
-
Page 34: Commissioning And Control Assembly Installation
To access filters or the flow regulator once the shower has been installed, remove the cover shroud (Combiflow exposed) or the concealing plate (Combiflow Built In). Make sure that the 8 l/min white flow regulator is fitted for combination boiler and instantaneous water heater systems. -
Page 35: Shroud Fitting And Removal
Override Button at the 1 O' Clock Position Button Guide Combiflow Built in The shroud assembly is supplied fitted, if it is removed then follow this procedure. Make sure that the override button assembly is aligned at the 1 O' clock position. -
Page 36: Maximum Temperature Setting
The following instructions are valid for both, Combiflow Exposed and Combiflow Built 1.1 The Combiflow maximum temperature stop assembly is set to nominally 41 °C at the factory (Note! This may vary according to the on-site water temperatures).This equates to the two missing teeth of the white geared... - Page 37 1.2 For standard inlets turn the square lever locator fully anticlockwise and clockwise for reversed inlet. Fit the maximum temperature stop assembly into the two slots either side of the square lever locator on the shower control (Note! Make sure that the maximum temperature stop assembly has the red side facing towards you.
-
Page 38: Adjusting Maximum Temperature Stop
Adjusting Maximum Temperature Stop 1.4 To adjust the maximum temperature position remove the lever. Remove the red maximum stop ring by pulling on two red upstands (Use pliers if necessary) Standard Inlets Pull the white maximum temperature stop apart from the red maximum lever stop (Use pliers if necessary). -
Page 39: Temperature Override Button - Disable
Temperature Override Button - Disable The Combiflow incorporates a temperature override button that allows the user to override the preset maximum temperature. The following procedure can be used to disable the override button, limiting the maximum temperature available to the preset value. -
Page 40: Lever Control Installation
Fit the lever plug after all of the maximum temperature commissioning has been carried out. Combiflow Exposed Square Lever Locator Plug Hexagonal Key Combiflow Built in Square Lever Locator Plug Hexagonal Key For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk... -
Page 41: Operation
OPERATION 1. Combiflow and Combiflow B The Combiflow incorporates a temperature override button that allows the user to override the preset maximum temperature. 1.1 Pull the control lever to turn on the water. Push the control lever to turn off the water. -
Page 42: Fault Diagnosis
FAULT DIAGNOSIS The trouble shooting information tabled below gives details on what you can do as a user should you encounter difficulties whilst operating the shower. Note! Should these remedies prove to be unsuccessful in solving your problem, contact your installer for further advice. Key for applicability column A - Instantaneous gas heated showers. - Page 43 Malfunction Cause Remedy A B C Shower pattern (a) Property water Contact the local water collapses when supply pipe partially supplier or your installer. another cold tap blocked or is turned on. undersized. (b) Property stop or Open valve. servicing valve not fully open.
- Page 44 Malfunction Cause Remedy A B C Shower starts (a) Insufficient flow Refer to 'Wide warm and then rate. temperature runs cool. fluctuations'. (b) Hot water supply Wait for hot water to temperature reheat. dropped. Shower control (a) Ceramic flow Renew the cartridge. cannot be shut cartridge damaged.
-
Page 45: Maintenance
MAINTENANCE The Mira Combiflow is designed to be maintenance free, as such there are no serviceable parts within the flow or pressure balancing cartridge. However regular cleaning will keep the shower in pristine condition, refer to '1. Cleaning'. Strainers are fitted to the inlets of the mixer to protect the cartridge and should give many years of trouble free showering. -
Page 46: Spare Parts
SPARE PARTS Combiflow Exposed Spare Parts List 459.01 Lever Handle 459.02 Lever Handle (Reversed) 459.03 Cover Shroud Assembly 459.05 Flow Cartridge Assembly 459.06 Flow Cartridge Body 459.07 Pressure Balancing Cartridge 459.08 Filter, Flow Regulator and Plug Pack 459.09 Inlet Connector Assembly 459.10... - Page 47 Combiflow Exposed Spare Parts Diagram 459.11 459.03 459.09 459.07 459.20 459.01 459.02 459.10 459.08 459.12 459.06 459.05 459.16 For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk...
- Page 48 Combiflow Built in Spare Parts List 459.01 Lever Handle 459.02 Lever Handle (Reversed) 459.04 Cover Shroud Retaining Clip 459.05 Flow Cartridge Assembly 459.06 Flow Cartridge Body 459.07 Pressure Balancing Cartridge 459.12 Filter and Flow Regulator Pack 459.14 Seal Pack (Not Illustrated) 459.18...
- Page 49 Combiflow Built in Spare Parts Diagram 459.21 459.27 459.27 459.07 459.06 459.26 459.04 459.20 459.12 459.28 459.25 459.23 459.19 459.18 459.05 459.23 459.01 459.02 For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk...
-
Page 50: Accessories
Available as an optional accessory from your Mira stockist. DCV-H Outlet double check valve For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk... - Page 51 NOTES For latest prices and delivery to your door visit MyTub Ltd 0845 303 8383 www.mytub.co.uk...
-
Page 52: Customer Service
Our Service Force is available to provide a quality service date. The guarantee on any exchanged parts or product at a reasonable cost. You will have the assurance of a Mira ends when the normal product guarantee period expires. trained engineer/agent, genuine Mira spares, and a 12 month Not covered by this guarantee: guarantee on the repair.