Mira Extreme Thermostatic, Installation & User Manual

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8
Section
Specifications
5
1. General
1.1. Ambient temperature – Maximum recommended ambient temperature for
the appliance is 30°C.
1.2. Maximum recommended hot water temperature – 65°C.
Warning! For safety reasons, set the maximum stored hot water temperature
to between 60 and 65°C. Such temperatures are considered sufficient to meet
all normal requirements and will also minimise the deposition of scale in hard
water areas.
1.3. Temperature control – To obtain the full listed performance, the Mira
Extreme should be installed, operated and maintained in accordance with this
guide.
1.4. The performance outlined below is achieved with a showering temperature of
between 35°–45°C selected and water supplies of 15°C cold and 65°C hot with
nominally equal pressures.
1.4.1 The maximum temperature stop is set to 41°C. Depressing the
override button overrides the maximum temperature and the showering
temperature can be increased by 5°C to approximately 46°C.
1.4.1. The blended water temperature is maintained within 1°C with a 10°C
change in the hot or cold water supply.
1.4.2. The sensor effects a shut down to seepage in approximately 2
seconds if the cold supply fails.
1.4.3. Shut down to seepage is achieved even if the hot supply is only 12°C
above the blend temperature.
1.4.4. The blended water temperature is maintained within 1.5°C when the
pressure between inlet and outlet is halved (defined as a pressure loss
ratio of 2:1) on either the hot or cold side.
1.5. Maximum static inlet pressure – 1 bar or 10 m (supplies must be gravity-
fed at nominally equal pressures). Refer to “ Installation Requirements –
Plumbing ” for further advice.
1.6. Minimum static inlet pressure – 0.008 bar or 80 mm (required to prime the
integral centrifugal pump). The minimum static pressure will increase for long
supply pipe lengths. Refer to "
Installation Requirements – Plumbing " for
further advice.
1.7. Maximum recommended inlet pressure – 0.5 bar or 5 m (supplies must be
gravity-fed at nominally equal pressures).
1.8. Minimum Flow Rate – 8 l/Min (with a static inlet pressure of 0.1 bar).
Maximum Flow Rate – 16 l/Min (with a static inlet pressure of 0.1 bar).
Flow rates may vary due to differences in supply pressures.