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Section
SpecificationsSpecifications
SpecificationsSpecifications
Specifications
4
1. 1.
1. 1.
1.
GeneralGeneral
GeneralGeneral
General
1.1.1.1.
1.1.1.1.
1.1.
Continuous duty cycleContinuous duty cycle
Continuous duty cycleContinuous duty cycle
Continuous duty cycle - 15 minutes on, 60 minutes off.
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.
1.3.1.3.
1.3.
Ambient temperature Ambient temperature
Ambient temperature Ambient temperature
Ambient temperature - Maximum recommended ambient temperature for
the appliance is 30°C.
1.4.1.4.
1.4.1.4.
1.4.
Hot Water TemperatureHot Water Temperature
Hot Water TemperatureHot Water Temperature
Hot Water Temperature - Maximum temperature 80°C.
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.
1.5.1.5.
1.5.
Temperature controlTemperature control
Temperature controlTemperature 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.
1.6.1.6.
1.6. The full specification performance outlined below for the standard appliance
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.
1.6.1.1.6.1.
1.6.1. The blended water temperature is maintained within 2°C with a 10°C
change in the hot or cold water supply.
1.6.2.1.6.2.
1.6.2.1.6.2.
1.6.2. The sensor effects a shut down to seepage in approximately 2
seconds if the cold supply fails.
1.6.3.1.6.3.
1.6.3.1.6.3.
1.6.3. Shut down to seepage is achieved even if the hot supply is only 12°C
above the blend temperature.
1.6.4.1.6.4.
1.6.4.1.6.4.
1.6.4. 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.
1.7.1.7.
1.7.1.7.
1.7.
Maximum static inlet pressuresMaximum static inlet pressures
Maximum static inlet pressuresMaximum static inlet pressures
Maximum static inlet pressures - 1 bar or 10m (supplies must be gravity-
fed at nominally equal pressures). Refer to
“Installation Requirements –“Installation Requirements –
“Installation Requirements –“Installation Requirements –
“Installation Requirements –
Plumbing; para 3.18”Plumbing; para 3.18”
Plumbing; para 3.18”Plumbing; para 3.18”
Plumbing; para 3.18” for futher advice.
1.8.1.8.
1.8.1.8.
1.8.
Minimum static inlet pressureMinimum static inlet pressure
Minimum static inlet pressureMinimum static inlet pressure
Minimum static inlet pressure - 0.0075 bar or 75mm (required to prime
the integral centrifugal pump).
1.9.1.9.
1.9.1.9.
1.9.
Maximum recommended inlet pressureMaximum recommended inlet pressure
Maximum recommended inlet pressureMaximum recommended inlet pressure
Maximum recommended inlet pressure - 0.5 bar or 5m (supplies must be
gravity-fed at nominally equal pressures).
1.10.1.10.
1.10.1.10.
1.10.
NoiseNoise
NoiseNoise
Noise - The powerful pump motor is fitted on rubber isolation mounts to
Section 4