Watts ENWARE Aquablend 500 Mini Installation And Maintenance Instructions Manual

Thermostatic mixing valve

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Aquablend

Thermostatic Mixing Valve

Installation and Maintenance Instructions

ATM500L

Enware products are to be installed in accordance with the Plumbing Code of Australia (PCA) and AS/NZS3500.

Installations not complying with PCA and AS/NZS 3500 may void the product and performance warranty provisions.

Reference should also be made to the Australasian Health Facility Guidelines (AHFG), ABCB and Local Government

regulations when considering the choice of, and the installation of these products.

This product must be installed and commissioned by a qualified plumber.

For use with potable water only.

NOTE: Enware Australia advises:

1. Due to ongoing Research and Development, specifications may change without notice.

2. Component specifications may change on some export models.

I00597_14 Mar 2024

1300 369 273 | info@enware.com.au | enware.com.au

500 Mini

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Summary of Contents for Watts ENWARE Aquablend 500 Mini

Page 1 Aquablend 500 Mini ® Thermostatic Mixing Valve Installation and Maintenance Instructions ATM500L Enware products are to be installed in accordance with the Plumbing Code of Australia (PCA) and AS/NZS3500. Installations not complying with PCA and AS/NZS 3500 may void the product and performance warranty provisions. Reference should also be made to the Australasian Health Facility Guidelines (AHFG), ABCB and Local Government regulations when considering the choice of, and the installation of these products.
Page 2: Product Description
safety The ENWARE Aquablend 500 Mini Thermostatic Mixing Valve (TMV) is a high performance ® valve designed to give stable and dependable operation, provided it is installed, commissioned, operated and maintained as per the recommendations outlined in this manual. It should be noted however that this valve should not be considered as an alternative to adequate supervision and duty of care during its use and operation.
Page 3: Installation Conditions
installation conditions Dynamic Inlet Pressures* Min. 20kPa (For optimum operation it is recommended that the hot Max. 500kPa and cold water supply pressures be balanced within +/- 10% for both static and dynamic pressures.) Static Inlet Pressures Max. 1600kPa For testing purposes / system commissioning Hot Temperature Supply Range Min.
Page 4: Before Installation
installation BEFORE INSTALLATION The Enware Aquablend Mini TMV should be installed using the appropriate Standard, Code ® of Practice and legislation applicable to each state and following the details outlined in this section. Thermostatic mixing valves must be installed by a qualified plumber. NOTE: To effectively control microbial hazards during system design, installation, commissioning and maintenance, the requirements outlined in AS/NZS3666 and local legislation shall be adhered to.
Page 5: Installation Procedure
Connecting Water Supply To ensure that the mixing valve operates correctly, it is necessary that the pipework is thoroughly flushed with clean water before it is installed as per AS/NZS3500.1. This will remove any physical contaminants from the pipework, ensuring trouble-free operation. It is also important that both of the inlet dynamic supply pressures are 500kPa or less.
Page 6: Commissioning Of The Valve
commissioning of the valve Upon completion of the installation, the valve should be tested and commissioned as per the procedure outlined below or as specified by the local authority. A calibrated digital thermometer having rapid response time with maximum temperature hold, and the temperature adjusting key (supplied with product) will be required to check and set the outlet mixed temperature of the valve.
Page 7: Shut Down Test
SHUT DOWN TEST Now that the mixing valve has been set it is necessary to perform a shut down check. Allow the mixed water temperature to stabilise and note the outlet temperature. While holding a digital thermometer in the outlet flow, quickly isolate the cold water supply to the valve.
Page 8: Maintenance And Servicing
maintenance and servicing The ENWARE Aquablend 500 Mini TMV will only require minimal preventative maintenance ® work to ensure it operates at its optimum level of performance. The valve shall be serviced annually, unless the installed conditions dictate more frequent servicing is necessary. ANNUAL MAINTENANCE PROCEDURE Every 12 months the ENWARE Aquablend Mini TMV should be inspected and tested.
Page 9 Accessing Internal Components of TMV To access the internals of the main valve body, first remove the Cover Cap, and then carefully remove Top Cap by unscrewing the larger hex with a spanner. Slide the Element Assembly, Mixing Tube and Return Spring out of the valve body, and clean all internal surfaces in clean running water.
Page 10 thermal flush option The Aquablend 500 Mini TMV includes a built-in Thermal Flush feature allowing the facility’s ® maintenance team or licensed service contactors to perform a controlled thermal flush to the TMV and warm water plumbing system, as part of thermal / heat disinfection process. NOTE: The thermal flush procedure is optional and does not form part of commissioning and service requirements set out in AS4032.3.
Page 11 12. Check the outlet flow, making sure it is within the required temperature range. 13. Turn the tapware outlet OFF. 14. Re-fit the Cover Cap to the TMV NOTE: If the Cover Cap does not securely fit back to the top cap this indicates the thermal flush has not been disengaged.
Page 12: Troubleshooting
troubleshooting FAULT / SYMPTOM CAUSE RECTIFICATION 1. The desired mixed • Hot and cold supplies are fitted • Refit the valve with Hot/Cold supplies fitted to water temperature to the wrong connections. the correct connections. cannot be obtained or • Valve contains debris. •...
Page 13 Commissioning / Service Report for Thermostatic Mixing Valve Use a separate form for each valve. The original report is to be retained on site for a minimum of 7 years. Copies of the report shall be : provided to the owner/ occupier or the person responsible ; retained by the tester ; and where required, forwarded to the relevant authority.
Page 14 Inlet Temperature and Pressure Tests Pressure Pressure Inlet Hot Water Inlet Cold Water Temp °C Temp °C Cold Supply via: Pressure Reduction Valve Fitted:  YES  NO mains / tank / pump Hot Water Unit: PRV :  YES ...
Page 15 Date of Installation Valve installed by (Name) Date of Previous Service Previous Service by (Name) Date of Previous Element/ O-Rings Replace- ment (5-Year Service) Date of This Service / Commissioning Date of Next Service Due Date Element / O-Rings Replacement (5-Year Service) Due It is hereby certified that all the commissioning work has been carried out by the undersigned in accordance with local plumbing requirements for Thermostatic Mixing Valves...
Page 16: Product Warranty Statement
- WATTS AUSTRALIA EFFECTIVE FROM 20 November 2023 3. Our responsibilities This Warranty Statement applies to products supplied by Australian Valve (a) In the event that the Supplier is reasonably satisfied that there is a Group Pty Ltd (ACN 068 227 270) (AVG) or Enware Pty Ltd (ACN 662...

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