Mira Elite QT Installation & User Manual page 9

DO NOT use a valve with a loose washer plate (jumper) as this can lead to a build
up of static pressure.
12. The shower is not designed to be plumbed directly from the rear. For rear-entry
supply, add an elbow to the supply pipe and connect as a rising or falling supply. We
recommend a falling supply to prevent air lock in the pipework.
13. If pipework and/or electrical cables enter the shower from the rear through a hole in
the wall, provision must be made to prevent water ingress back into the wall structure.
14. DO NOT apply excessive force to plumbing connections; always provide mechanical
support when making plumbing connections. Any soldered joints should be made
before connecting the shower.
15. A water treatment device should be installed where the water hardness may exceed
200 ppm. Malfunctions caused by excessive limescale formation are not covered by
the guarantee.
16. DO NOT perform the electrical installation until the plumbing has been completed and
checked for leaks.
17. The water supplies to this product should be isolated if the product is not to be used
for a long period of time. If the product or pipework is at risk of freezing during this
period they should also be drained of water.
Pipework
Long pipe runs and excessive use of 90° elbow fittings will significantly reduce the available
head to supply the shower unit. The pipework table provided should be used to ensure that
an adequate pressure is available for any given application.
Use the following table to calculate the dimension (x) to give a minimum effective head of
80 mm required to produce a satisfactory shower in all conditions.
X
Pipework Schematic Diagram
A
9
B
1265606-W2-A