Morco 24CPM User Instructions And Installation Manual page 7

1.3 GENERAL GUIDANCE ON HOT WATER DELIVERY
The temperature of the hot water is governed by both the ambient temperature
of the cold water supply and its flow rate through the boiler. In the case of the
24CPM model at a flow rate of 1 0.6L/min there will be a maximum rise of 35°C
above ambient. At a flow rate of 6.8L/min there will be a rise of
sooc
above
ambient, (the slower the flow rate, the greater the temperature rise).
The flow rate of the hot water is controlled by the hot outlet tap, until the max flow
allowed by the boiler is achieved.
The temperature selector knob on the boiler is effective only when there is either
a low water flow rate or a high ambient water temperature.
- The boiler can theoretically supply more than one outlet simultaneously
However in practice the tap which is nearest will receive the most hot water. If
the shower is in use and a kitchen tap is opened virtually all the hot water will be
diverted to the kitchen as it offers the least resistance.
- If an outlet is too restrictive it will slow down the flow rate and increase the
temperature. For example, ensure the shower head is free from blockages
caused by scale.
- If a tap or shower head is too restrictive due to a fault or blockage, the flow rate
will be reduced to below the rate at which the boiler is able to operate, resulting
in a wide swing in temperatures. Either fix the restriction or turn the temperature
selector on the boiler down.
A eaution:The boiler can produce water at over
1o·c
when in central
heating mode. If you run a hot tap when the boiler has been heating the
radiators, the initial flow through the hot tap could be very hot. DO NOT
PLACE YOUR HANDS under the tap or use the shower until this initial flow
has passed.
-Allow time (30 seconds) for the temperature to stabilise after making an
adjustment at the tap before making further adjustments.
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