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OPERATION
The pump would normally start automatically when the mixing valve is set to open.
When the flow rate through the outlet pipe is more than 0.5 l/min a magnetic float lifts
and closes the contacts of the flow switch sensor. When this occurs the electrical
circuit to the motor is completed and the pump operates. The opposite action occurs
when the flow stops.
A vertical distance of 100 mm between the water discharge point of the shower outlet
and the base of the cistern would typically achieve the flow rate required. However,
long pipe runs or restrictive terminal fittings will increase the gravity head required to
produce the required flow.
To overcome an initial low flow rate in the outlet pipe it is possible to by-pass the
function of the flow switch by the addition of a momentary action switch connected in
parallel with the flow switch (as shown in figure 8). When the mixing valve is set to on
and the switch operated, the pump will run. The pump will maintain the necessary flow
rate in the outlet pipe and will continue to operate until the mixing valve is set to off.
PACK CONTENTS
Examine the contents of the pack and tick the appropriate boxes to familiarise
yourself with the part names and to confirm that all parts are included.
1 x Mira Enduro Pump
4 x Flexible Hoses
Documentation
4 x Fibre Washer
1 x Installation and User Guide
1 x Customer Support Brochure
6
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