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Section
4
1. 1. 1. 1. 1. General
General
General
General
General
1.1.
1.1.
1.1.
Continuous duty cycle
Continuous duty cycle
Continuous duty cycle - 15 minutes on, 60 minutes off.
1.1.
1.1.
Continuous duty cycle
Continuous duty cycle
1.2.
1.2.
1.2.
1.2.
1.2.
The motor is fitted with self-resetting thermal trip protection, designed to
operate if the duty cycle is exceeded or ambient temperatures become too
high.
1.3.
1.3.
1.3.
Ambient temperature
Ambient temperature
Ambient temperature - Maximum recommended ambient temperature for
1.3.
1.3.
Ambient temperature
Ambient temperature
the appliance is 30°C.
1.4.
1.4.
1.4.
1.4.
1.4.
Hot Water Temperature
Hot Water Temperature
Hot Water Temperature
Hot Water Temperature - Maximum temperature 80°C.
Hot Water Temperature
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.
1.5.
1.5.
Temperature control
Temperature control
1.5.
1.5.
1.5.
Temperature control
Temperature control
Temperature control - For full listed performance to be obtained the
appliance should be installed, operated and maintained in accordance with
this guide.
1.6.
1.6.
1.6.
The full specification performance outlined below for the standard appliance
1.6.
1.6.
is achieved with a blend set between 35° – 45° and supplies of 15°C cold
and 65°C hot with nominally equal pressures.
1.6.1.
1.6.1. The blended water temperature is maintained within 2°C with a 10°C
1.6.1.
1.6.1.
1.6.1.
change in the hot or cold water supply.
1.6.2.
1.6.2.
1.6.2. The sensor effects a shut down to seepage in approximately 2
1.6.2.
1.6.2.
seconds if the cold supply fails.
1.6.3.
1.6.3.
1.6.3. Shut down to seepage is achieved even if the hot supply is only 12°C
1.6.3.
1.6.3.
above the blend temperature.
1.6.4.
1.6.4. The blended water temperature is maintained within 1.5°C when the
1.6.4.
1.6.4.
1.6.4.
pressure between inlet and outlet is halved (defined as a pressure
loss ratio of 2:1) on either the hot or cold side.
1.7.
1.7.
1.7.
1.7.
1.7.
Maximum static inlet pressures
Maximum static inlet pressures
Maximum static inlet pressures - 1 bar or 10m (supplies must be gravity-
Maximum static inlet pressures
Maximum static inlet pressures
fed at nominally equal pressures). Refer to "Installation Requirements –
Plumbing; para 3.18"
Plumbing; para 3.18"
Plumbing; para 3.18" for futher advice.
Plumbing; para 3.18"
Plumbing; para 3.18"
1.8.
1.8.
Minimum static inlet pressure
Minimum static inlet pressure
1.8.
1.8.
1.8.
Minimum static inlet pressure
Minimum static inlet pressure
Minimum static inlet pressure - 0.0075 bar or 75mm (required to prime
the integral centrifugal pump).
1.9.
1.9.
1.9.
Maximum recommended inlet pressure
Maximum recommended inlet pressure - 0.5 bar or 5m (supplies must be
Maximum recommended inlet pressure
1.9.
1.9.
Maximum recommended inlet pressure
Maximum recommended inlet pressure
gravity-fed at nominally equal pressures).
1.10.
1.10.
1.10.
1.10. Noise
1.10.
Noise
Noise
Noise
Noise - The powerful pump motor is fitted on rubber isolation mounts to
8 8 8 8 8
Specifications
Specifications
Specifications
Specifications
Specifications
"Installation Requirements –
"Installation Requirements –
"Installation Requirements –
"Installation Requirements –
Section 4
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