White 415 User's Guide Page 1

PRESSURE BALANCEDUser GuideInstallation andSHOWER CONTROLTHESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER

10Typical Suitable Installations1. Instantaneous multipoint water heaters and combination boilersThe shower MUST be installed with a multipoint gas wa

11HOTCOLDCombined outlet PRVwith internal non-return valves- Expansion vessel required.Cold takeoff after PRV- Expansion pressure taken up by unvented

123. Mains pressurised instantaneous hot water shower, heated from athermal storePackages of this type, fitted with a tempering valve can be used.A dr

13 Measuring System Pressures1. GeneralIt is important that the system pressures are within the range specified for theMira CombiForce 415 (refer to t

141. Before you decide on the final positionof your shower control, please bear inmind the following:- Decide on a suitable position forthe shower con

15BackplateGrubScrews2. Remove the backplate by releasing,anticlockwise, the two recessed grubscrews which retain the backplateagainst the brass showe

167. Fit the shower control body onto thebackplate and secure by tightening,clockwise, the two recessed grubscrews, using the 2.5 mm A/F hexagonwrench

179.3. Slide, in turn, the compressionnut, then the olive, over the hotand cold inlet pipework. Ifnecessary, sparingly, smear‘liquid jointing’ on the

18Back Inlet Supplies1. Follow the shower control installationprocedure as for “Rising or FallingInlet Supplies”: instructions 1. to 4.inclusive.2. Us

19FibreGasket6. Fit the gaskets to the 1/2" BSP connectornipples and screw in the nipples with thetapered ends outermost to accept thecompression

2pyContentsSection Page1... Introduction ... 32... Important Safety Informatio

20Mira CombiForce 415B Built-in Shower ControlThe building-in depth for the integral wallmounting bracket assembly is 58 mm. Thebuilding-in depth for

21Solid, Dry-lined, Stud Partition or Dry Partition Wall Structures1. Before you decide on the final position ofyour shower control, please bear in mi

225. Mark the wall surface for an openingmeasuring approximately 245 mm x125 mm.Mark the route of the incoming andoutgoing pipework services.Using the

2311. Connect the incoming hot and cold watersupply pipes :11.1 Slide the compression nut, thenthe olive, over the pipe end. Ifnecessary, sparingly sm

2414. Plaster and tile up to the tapered sidesof the plastic building-in shroud and,when set remove the shroud. The twoM5 shroud retaining screws shou

25Shower Cubicle or Laminated PanelThe built-in shower control incorporates an integral wall mounting bracket assemblywhich can be used to install the

26Installation on to the Back Face of a Shower Cubicle or LaminatedPanelThe building-in depth for the integral wall mounting bracket assembly is 58 mm

27Reversed Outlet ConnectionMira CombiForce 415 shower controls are supplied with inlet connections hot left, coldright and bottom outlet. The Mira Co

28Reversed Inlet SuppliesMira CombiForce 415 shower controls are supplied with inlet connections hot left, coldright and bottom outlet. The Mira Combi

29All heater appliances must have a fully modulating heat output for the domestichot water, to provide a constant temperature of hot water to the Mira

3Thank you for purchasing a quality Mira product. To enjoy the full potential of your newproduct, please take time to read this guide thoroughly, havi

305. The maintained water supply pressure should not exceed 5 bar. A pressure reducingvalve will be needed for pressures over 5 bar to improve the sys

318. Refit the control knob (with the override button at the bottom), control knob retainingscrew/plastic override stop and concealing cap.Please ensu

32Temperature Override Button DisableThe Mira CombiForce 415 incorporates a safety feature which prevents thetemperature override button from being de

33===MAX. Cº+++Mira CombiForce 415 shower has a single control knob which turns the shower controlon/off and adjusts the water temperature.Turn the co

34How the pressure balancing principle operatesMira CombiForce 415 pressure balanced shower controls automatically adjust forvariations in inlet press

35Customer Fault DiagnosisThe trouble shooting information tabled below gives details on what you can do as auser should you encounter difficulties wh

36RemedyMalfunction CauseShower patterncollapses whenanother hot tap isturned on.(a) Property watersupply pipepartially block

37RemedyMalfunction Cause(a) Heater appliance

38Installer Fault Diagnosis: refer to appliance diagram and customer faultdiagnosisRead the section “Important Safety Information” first.Providing the

39RemedyMalfunction CauseShower patterncollapses whenanother hot tap isturned on.(a) Property watersupply pipepartially block

4Important Safety Information1SectionSection2Important Safety InformationWarning!1. Products manufactured by us are safe and without risk provided the

40RemedyMalfunction Cause(a) Heater appliance

41Mira products are precision engineered to provide satisfactory performance providedthey are installed and operated in accordance with the recommenda

42Cover ShroudCover ShroudRetaining ScrewsCartridgeConcealing CapCoverHubCover RetainingScrewsControl KnobPlasticOverrideStopRetaining ScrewAdjustable

43ArrowEnd View Of CartridgeFlat On SpindleHC12. Refit the adjustable temperature stop in its original position.13. Temporarily fit the control knob (

44CartridgeCoverCover Retaining ScrewsPlastic PinsCover 'O' SealRetaining Bush'O' Seal'O' Seal'O' Seal‘O’ Seal

45Inlet Strainer CleaningShould the inlet strainer units require cleaning or renewal then follow the procedurebelow:Important! Use only silicone based

46Spare PartsSection12CombiForce 415 Spare Parts List012.12 Cover242.55 Adjustable Temperature Stop280.07 Inlet Compression Fitting - chrome280.15 Inl

47575.12617.20617.21617.29280.07280.15553.35553.54802.33902.55012.12802.27617.22617.23617.18AA932.25 AAAAAACombiForce 415 Spare Parts Diagram AA617.20

48CombiForce 415B Spare Parts List012.12 Cover119.85 Wall Mounting Bracket242.55 Adjustable Temperature Stop410.53 Concealing Plate - white410.54 Con

49CombiForce 415B Spare Parts Diagram617.22617.23119.85 B555.67932.04617.19012.12902.55410.53410.54410.55AAA932.25AAAACCBCBAA242.55575.12

51 x CombiForce 415 Shower Control ❏2 x Pipe Concealing Plates ❏2 x 1/2" BSP Inlet Connector Nipples ❏2 x Fibre Gaskets ❏2 x Olives ❏2 x Compress

50AccessoriesDCV-H: An outlet double check valve, requiring a minimum inlet supply pressure of0.5 bar, which has been designed to prevent the backflo

51AppendixNotes

P3740/3© Kohler Mira Limited, August 2003SectionCustomer ServiceGuarantee of Quality After Sales ServiceMira ShowersKohler Mira LtdCromwell Road,Chelt

62. Mira CombiForce 415B Built-in Shower Control3. Documentation1 x Installation and User Guide ❏1 x Customer Support Brochure ❏1 x Wall Mounting Bra

7DimensionsSection4All dimensions are nominal and in millimetresMira CombiForce 415BMira CombiForce 415Top Inlet(Falling)SuppliesBottom Inlet(Rising)S

8SPECIFICATIONS5SpecificationsSectionMira CombiForce 415 and 415BPressure RangeMinimum maintained pressure: 1 bar.Maximum maintained pressure: 5 bar.M

9Float operated valveStop or servicing valveShower controlWarning or overflow pipeDrop tight pressure reducingvalve (PRV)Key to symbols appearing thro