Related Manuals for Kohler rada Thermotap-3
Summary of Contents for Kohler rada Thermotap-3
- Page 1 Thermotap-3 Important! This Manual is the property of the customer and must be retained with the product for maintenance and operational purposes. Product Manual 1058907-W2-J...
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Page 2: Table Of Contents
Customer Service .................. 24 If you experience any difficulty with the installation or operation of your new Thermostatic Mixer, please refer to ‘Fault Diagnosis’, before contacting Kohler Mira Ltd. Our telephone and fax numbers can be found on the back cover of this guide. -
Page 3: Safety : Warnings
SAFETY : WARNINGS SAFETY : WARNINGS The function of this thermostatic mixing tap is to deliver water consistently at a safe temperature. This requires that: It is installed, commissioned, operated and maintained in accordance with the recommendations given in this Manual. For Type 3 installations, valves are only to be used for applications covered by their approved designations, refer to the TMV3 Requirements Manual. -
Page 4: Introduction
INTRODUCTION The Rada Thermotap-3 Lever operated sequential mixing tap is specified to meet the highest standards of safety, comfort and economy as demanded by todays users. The Rada Thermotap-3 is designed, manufactured and supported in accordance with accredited BS EN ISO 9001:1994 Quality Systems. -
Page 5: Dimensions
DIMENSIONS All Dimensions and Angles are Approximate. Short Lever 100 mm Long Lever 150 mm Ø 26 - 36 mm 110 mm Max 30 mm 180° Flexible Tails Rigid Tails (15 mm Compression Fitting/1/2" BSP Male) 1058907-W2-J... -
Page 6: Specification
Other Applications For information on other specific applications or suitability, refer to Kohler Mira Ltd, or Local Agent. Disinfection In applications where system chemical disinfection is practised, chlorine can be used (calculated chlorine concentration of 50 mg/l (ppm) maximum in water, per one hour dwell time, at service interval frequency). -
Page 7: Temperatures
Flow Rate v Supply Pressure. Temperatures Optimum performance is obtained when temperature differentials of 20°C or more exist between blend and either supply. Blend control accuracy will begin to diminish at temperature differentials below 10°C. Blend Temperature Range: between ambient cold and approximately 45°C, according to hot water supply temperature. -
Page 8: Installation
INSTALLATION General Installation must be carried out in accordance with these instructions and must be conducted by designated, qualified and competent personnel. Before commencing, make sure that the installation conditions comply with the information given in section: 'Specifications'. For Type 3 valves see also Installation conditions in The TMV3 Requirements Manual. -
Page 9: Flow Regulator Removal
Flow Regulator Removal Note! This procedure is only necessary when the dynamic supply pressure is below 0.4 bar. Isolate the hot and cold supplies with the isolating valves. Checkvalve Disconnect the flexible hoses or Assembly rigid inlet tails as applicable, by unscrewing the union nuts. -
Page 10: Installation
Installation Screw the fixing studs fully into the Thermotap-3 body. Place the 'O' seal in the groove in the base of the Thermotap-3 body. 'O' Seal Place either rigid or flexible inlet tail through one of the larger holes Fixing Studs in the backplate, orientate the backplate to suit the hole size in 26 to 36 mm... -
Page 11: Commissioning
Note! For Type 3 valves in healthcare installations the maximum blend temperature is determined by the application, refer to the TMV3 Requirements Manual. The Rada Thermotap-3 is fully performance tested, and the maximum temperature is preset to approximately 41°C under ideal installation conditions at the factory. -
Page 12: Flow Shut Off Setting
Flow Shut Off Setting Fully open the inlet isolation valves. Remove the lever using the 2.5 mm A/F hexagonal wrench, and remove the stop ring. Refit the lever to the spindle (position not important) and open the tap. Turn the lever to the off position so the flow just stops, then rotate a further 10 - 20 degrees, to make sure of a tight shut off. -
Page 13: Maximum Temperature Setting
Maximum Temperature Setting Make sure that an adequate supply of hot water is available at the hot inlet of the Thermotap-3. The minimum temperature of the hot water must be at least 10°C above the desired blend, however during resetting this should be close to the typical storage maximum to offset the possibility of any blend shift due to fluctuating supply temperatures. -
Page 14: Operation
OPERATION The Rada Thermotap-3 has a single lever that provides sequential operation from OFF through COLD and WARM to a preset maximum blend temperature. The maximum temperature is preset to approximately 41°C under ideal installation conditions at the factory. To change this setting refer to the information given in section: Commissioning'. -
Page 15: Fault Diagnosis
FAULT DIAGNOSIS Symptom Cause/Rectification Only hot or Inlet supplies reversed (hot supply to cold inlet). c o l d w a t e r Check. from outlet. No hot water reaching Thermotap-3. Check. Check strainers and inlet/outlet fittings for blockage. Refer symptom 5. -
Page 16: Maintenance
Symptom Cause/Rectification Indicates incorrect maximum temperature setting; refer M a x i m u m to COMMISSIONING. b l e n d temperature As symptom 4. above. setting too As symptom 5. above. h o t o r t o o cool. -
Page 17: Maintenance Procedures
Components are precision-made, so care must be taken while servicing to avoid damage. When ordering spare parts, please state product type, i.e. Rada Thermotap-3 and identify part name and number. A service pack is available, containing all the seals and strainer screens that may be necessary for renewal during maintenance or servicing. - Page 18 Plug Grubscrew Grub Screw Rising Spindle Stop Ring 'O' Seal (Rising Spindle) Collar 'O' Seal (Cold 'O' Seal Seat) (Follower) Follower Circlip Shuttle/Thermostat Assembly (Includes Overload Spring) Head Return Spring Screw Retainer 'O' Seal (Head) ...
- Page 19 Lever Shut Off Position Turn the lever fully to the off position. Remove plug and slacken the grub screw which secures the lever, and remove the lever. Refit the lever to the spindle one serration anticlockwise (approx 10 degrees). Turn the lever fully clockwise to the stop (lever should be parallel with the wall) and ensure that tight shut off is achieved.
- Page 20 Cleaning/Renewal of Parts 13. Internal parts can be cleaned using a mild proprietary inhibited scale solvent, e.g. domestic kettle descalent. After descaling, always rinse parts thoroughly in clean water before refitting. Note! Make sure that components are cleaned carefully and not damaged in any way.
- Page 21 Maintenance Procedure - Checkvalves & Strainers Refer to illustrations in section: 'Installation'. Hot water entering the cold supply, or vice versa, indicates that immediate attention is required. This is performed by removing and cleaning, or renewing the checkvalve assemblies as necessary. Blockage of the strainer screens can lead to poor flow performance and reduced temperature control.
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Page 22: Spare Parts
SPARE PARTS 066.66 Flow Regulator 455.01 Short Lever Assembly 455.02 Long Lever Assembly 455.04 Flexible Tail - Cold 455.05 Flexible Tail - Hot 455.07 Aerator 455.10 Checkvalve Assembly (single) 916.59 Flow Straightener 925.72 Shuttle/Thermostat Assembly 928.49 Head Assembly 936.13 Fixing Kit 936.23 Service Pack (components identified *) 1555.063... - Page 23 455.01 455.02 925.72 1555.074 455.07 916.59 936.13 Rigid Tails 928.49 1555.063 Flexible Tails 455.04 455.05 455.10 066.66 1555.072 1058907-W2-J...
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Page 24: Customer Service
E-mail: us for help and advice. CustomerServiceEire@mirashowers.com Rada is a registered trade mark of Kohler Mira Limited. The company reserves the right to alter product specifications without notice. 14648 © Kohler Mira Limited, December 2016 1058907-W2-J...