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1. Pressure Ranges
Excel & Excel B
1.1. Minimum maintained pressure: 0.1 bar (1.0 metre head) when used with Mira
shower fittings.
1.2. Maximum maintained pressure: 5.0 bar.
1.3. Maximum static pressure: 10 bar.
Note! Nominally equal inlet supply pressures are recommended for optimum
performance.
2. Temperature Control
2.1. Close temperature control is provided between 35 °C and 45 °C.
Note! The temperature control specification, outlined below, is achieved with the
blend set between 35 °C and 45 °C, with supply temperatures of 15 °C cold and
65 °C hot, AND, nominally equal inlet supply pressures.
2.2. The blended temperature is maintained within 2 °C with a 10 °C change in the hot
or cold supply.
2.3. The wax capsule sensor effects a shut down to seepage in approximately
2 seconds if the cold supply fails. Shut down to seepage is only achieved if the
hot supply is 12 °C above the blend temperature.
3. Standards and Approvals
3.1. Designed to comply with BS EN 1111 and 1287 for thermostatic mixing valves,
and to be used within systems designed to BS6700.
3.2. BS 6700 recommends that the temperature of stored water should never exceed
65 °C. A stored water temperature of 60 °C is considered sufficient to meet all
normal requirements and will minimise the deposition of scale in hard water areas.
SPECIFICATIONS
8
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