Installation - Mira Montpellier Installation, Operation, Maintenance Manual

General
Installation must be carried out in accordance with these instructions, and must be
conducted by designated, qualified and competent personnel.
1. Before commencing, ensure that the installation conditions comply with the
information given in SPECIFICATION. For Type 3 valves see also Installation
conditions in TYPE 3 VALVES.
2. Care must be taken during installation to prevent any risk of injury or damage.
3. The mixing valve should be positioned for easy access during use and
maintenance. All routine maintenance procedures can be conducted with the
mixing valve body in place.
4. Conveniently situated isolating valves must be provided for maintenance.
5. The use of supply-line or zone strainers will reduce the need to remove debris at
each mixing valve point. The recommended maximum mesh aperture dimension
for such strainers is 0.5 mm.
6. Inlet pressure tappings which allow measurement of the inlet pressures to the
mixing valve under operating conditions are particularly recommended for
healthcare applications with Type 3 valves.
7. Pipework must be rigidly supported.
8. Pipework dead-legs should be kept to a minimum.
9. Supply pipework layout should be arranged to minimise the effect of other outlet
usage upon the dynamic pressures at the mixing valve inlets.
10. Inlet and outlet threaded joint connections should be made with PTFE tape or
liquid sealant. Do not use oil-based, non-setting jointing compounds.
11. To eliminate pipe debris it is essential that supply pipes are thoroughly flushed
through before connection to the mixing valve.
Note! Adequate protection against backflow in a domestic installation is
provided by the integral inlet check valves and the check valve on the divertor
outlet for the variable shower head.

INSTALLATION

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