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Lubricants

Silicone based lubricants must only be used on the rubber seals.
Caution! Oil based or other lubricant types may cause rapid deterioration of seals.

Cleaning

The chrome plated parts should be cleaned using a mild washing up detergent or

soap solution, rinsed and then wiped dry with a soft cloth.
Warning! Many household cleaners contain abrasive and chemical substances, and

should not be used for cleaning plated or plastic fittings.

Do not use descalents on this product.

Part Number

Description

1578.046

Thermostatic Cartridge

Maintenance Procedure - Thermostatic Cartridge

Removal (Refer to Figure 1)

1.

Isolate the supplies to the shower control, and open the flow control to release

pressure and to assist the draining of residual water.

2.

Remove the temperature knob assembly, using the 3 mm A/F hexagonal wrench

(supplied). Do not remove the temperature hub.

3.

With removal clip still in place, unscrew the head nut using a 35 mm A/F wrench.

This will release the body shroud and also begin to draw the Thermostatic

cartridge out of the shower control body.

Warning:

some residual water may be released.

4.

Note which inlet aligns with the hot (marked H and coloured red) lug on cartridge.

5.

Pull the Thermostatic cartridge free of the shower control body.

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Содержание rada Exact-3 B

Страница 1: ...1 1057614 W2 D These instructions must be left with the user Product Manual Exact 3 B ...

Страница 2: ...ording to this manual the risk of malfunction if not eliminated is considerably reduced Malfunction of thermostatic shower controls are almost always progressive in nature and will be detected by the use of proper temperature checking and maintenance routines Certain types of system can result in the thermostatic shower control having excessive dead legs of pipework Others allow an auxiliary cold ...

Страница 3: ... Healthcare premises as a Type 3 valve under the BUILDCERT TMV3 scheme For Healthcare installation refer to the TMV3 Requirements Manual Rada Exact 3 B 1 2 built in thermostatic shower control for concealed pipework incorporating either chrome control knobs or white plastic lever controls DESCRIPTION Model Designation Rada Exact 3 B HP S LP SE DIMENSIONS 168 mm 252 mm 59 mm 55 mm 117 mm 12 mm 35 m...

Страница 4: ...ng Plate 2 x Countersunk Short Bolts 2 x Countersunk Fixing Screws Backplate Seal Attached 3 x Compression Nuts 3 x Olives 3 x Flat Faced Inserts 2 x Countersunk Long Bolts Documentation Tick the appropriate boxes to familiarize yourself with the part names and to confirm that the parts are included 1 x TMV3 Requirements Manual ...

Страница 5: ...e conducted strictly in accordance with the information supplied with the disinfectant and with all relevant Guidelines Approved Codes of Practice If in any doubt as to the suitability of chemical solutions refer to Kohler Mira Ltd or Local Agent Pressures and Flow Rates Operating Parameters For Type 3 installations the supply conditions specified in the TMV3 Requirements Manual take precedence ov...

Страница 6: ...C or more exist between blend and either supply Blend control accuracy will begin to diminish at temperature differentials below 12 C Blend Temperature Range Between ambient cold and approximately 60 C according to hot water supply temperature Thermostatic Control Range Approximately 25 60 C Optimum Thermostatic Control Range 30 50 C Recommended Minimum Cold Water Supply Temperature 1 C Recommende...

Страница 7: ... INLETS OUTLET Exact 3 B Any Configuration bottom top Products are supplied in the format shown in bold Standard Connections are hot left marked red cold right marked blue Outlet top can be altered to bottom outlet if required refer to INSTALLATION Note Should the supplies be reversed then the shower control will not be able to control temperature This can be corrected by reversing the position of...

Страница 8: ...upply inlets of the thermostatic mixing valve 6 The use of supply line or zone strainers will reduce the need to remove debris at each shower control point The recommended minimum mesh aperture dimension for such strainers is 0 5 mm 7 Inlet pressure tappings which allow measurementof the inlet pressures tp the mixing valve under running conditions are particularly recommended for healthcare applic...

Страница 9: ...f the plate and levering round all four sides Unscrew and remove the metal and plastic backplates 5 With the removal clip still in place unscrew the head nut using 35 mm A F wrench this will release the body shroud and also begin to draw the Thermostatic cartridge out of the body Note Some residual water may be released Pull the Thermostatic cartridge free of the valve body 6 Rotate the Thermostat...

Страница 10: ...ll to the required dimensions 2 This mixing valve is supplied with outlet to top should the installation require outlet to bottom then refer to Outlet Position Reversed Inlets 3 Put the valve in the recess and connect inlet and outlet pipework checking that the hot and cold supplies have been piped to the correct inlets Check all connections are watertight 4 Important Flush through the hot and col...

Страница 11: ...tes with the wall surface and reduces the possibility of water penetration into the recess Should the wall surface or tiling be uneven this seal will not be fully effective and should be assisted substituted by silicone sealant Correctly position the backplate 9 Place the foam seal and the mounting plate in position Secure the mounting plate foam seal and the backplate to the mounting bracket with...

Страница 12: ...emplate mark and drill 2 fixing holes to secure the mounting bracket in position 3 Follow previous instructions for wall recess installation 4 If access is available it may be preferable to make the initial valve pipework connections prior to securing the mixing valve to the panel 5 Mount the mixing valve securely onto rear of panel with the panel fixing screws supplied 6 Important Flush through t...

Страница 13: ...racket in position The fixing hole dimensions must be suitable for the selected securing method appropriate for the particular panel material 3 Follow previous instructions for wall recess installation Note The inlets accept rising or falling supplies on thicker panels this may require the inlet pipework to be configured with elbows or pipe bends immediately prior to the inlet connections 4 Plaste...

Страница 14: ...er must be as close to the typical maximum to offset the possibility of any blend shift due to fluctuating supply temperatures However the minimum temperature of the hot water must be at least 12 C above the desired blend for correct operation Temperatures should always be recorded using a thermometer with proven accuracy Check that both inlet isolating valves are fully open Turn the temperature k...

Страница 15: ...ody are watertight Check that the supply pressures are within the range of operating pressures for the valve If the outlet temperature is set correctly then refer to Commissioning Checks If adjustment of the temperature is required carry out the procedure shown below 1 Remove the temperature knob using the 3 mmA F hexagonal wrench supplied 2 Pull off the temperature hub 3 Rotate the spindle until ...

Страница 16: ...supply pressure and note the subsequent effect on blend temperature should be no more than 2 C change Exercise the thermostat as described on the previous page OPERATION Adjustment of blend temperature from preset maximum to cold is achieved by clockwise rotation of the temperature knob The flow control knob operates through 180 rotation with full flow when the lever knob is fully to the left and ...

Страница 17: ... above b Hot supply temperature fluctuation c Supply pressure fluctuation a Check strainers and inlet outlet fittings for blockage b Hot or cold supply failure thermostat holding correct shutdown function rectify and refer to symptom 2 e above c Flow control cartridge faulty Check and renew if necessary a Inlet supplies reversed see reversed inlets section Check b No hot water reaching shower cont...

Страница 18: ... only serviceable parts are the inlet filters which should be checked and cleaned every 12 months If a malfunction occurs with the Thermostatic Cartridge then this will necessitate a complete cartridge replacement Note The cartridge contains no internally serviceable parts If you require a Rada trained engineer or agent refer to section Customer Service Planned Maintenance Important For Type 3 Val...

Страница 19: ...rmostatic Cartridge Maintenance Procedure Thermostatic Cartridge Removal Refer to Figure 1 1 Isolate the supplies to the shower control and open the flow control to release pressure and to assist the draining of residual water 2 Remove the temperature knob assembly using the 3 mmA F hexagonal wrench supplied Do not remove the temperature hub 3 With removal clip still in place unscrew the head nut ...

Страница 20: ...be cleaned carefully and not damaged in any way Do not use any abrasive material 7 Cartridges may only be cleaned by flushing through under a jet of clean water to remove lodged particles Do not descale Cartridges are not serviceable and must not be dismantled Cartridges cannot be tested individually service condition should be assessed as part of the performance check refer to Commissioning Check...

Страница 21: ... Splined Adaptor Flow Cartridge Body Shroud Seal Flow Cartridge Removal Figure 2 Cleaning Renewal of Parts 1 The inner surface of the shower control body must be clean before refitting cartridge If scale or deposition is present clean without Thermostatic flow and checkvalve cartridges fitted using a mild proprietary inhibited scale solvent e g domestic kettle descalent After descaling rinse body ...

Страница 22: ...o assist the draining of residual water 2 The Checkvalve cartridges are located behind the backplate to remove undo the Checkvalve cartridge head hexagon using a 24 mm A F wrench and pull free Caution Some water may be released at this point 3 The Checkvalve cartridge assembly may be cleaned by removal of the rubber retainers and inlet strainers and flushing through under a jet of water to remove ...

Страница 23: ...d 2 retainers 1 Isolate the supplies to the shower control and open the flow control to release pressure and to assist the draining of residual water 2 The strainer screens are located at the inlet of each Checkvalve cartridge To access the inlet strainer screens remove the checkvalve cartridges 3 The strainer screens are dished outwards and are held in position by the rubber retainers Remove care...

Страница 24: ...rature 427 40 Lever Assembly Temperature 427 41 Screw Pack Wall and Panel Fixings components identified A 427 42 Screw Pack Valve components identified B 427 43 Cartridge Removal Clip 427 44 Headnut 427 45 Concealing Plate Assembly chrome 427 46 Concealing Plate Assembly white 427 47 Backplate Assembly 427 48 Seal Pack components identified C 427 49 Flat Faced Insert 15 mm 427 50 Compression Nut a...

Страница 25: ...057614 W2 D 2 Rada Exact 3 B Spare Parts Diagram 427 49 427 50 427 51 427 32 427 33 427 31 427 30 1578 046 427 44 427 35 427 43 427 36 A A B 427 47 427 38 427 45 427 46 427 37 427 39 427 40 B C D D D D C A ...

Страница 26: ...26 1057614 W2 D NOTES ...

Страница 27: ...27 1057614 W2 D ...

Страница 28: ...ed if the product is us or our appointed representative Routine maintenance or replacement parts to comply with the requirements of the TMV2 or TMV3 healthcare schemes Accidental or wilful damage Products purchased ex showroom display What to do if something goes wrong If your product does not work correctly refer to this manual for fault diagnosis and check that it is in stalled and commissioned ...

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