17
13. COMMISSIONING THE SHOWER
IMPORTANT: The MX Thermo Response thermostatic
control shower unit incorporates a commissioning
procedure detailed below. It is important that this
procedure is followed.
1. Make sure that the electricity supply has been
isolated at the double pole isolating switch.
2. Turn the Flow control fully anti-clockwise to the
maximum flow position.
3. Ensure that the water supply is fully on at the mains
stop cock and isolating service valve (if fitted)
4. Check that water is not leaking from the bottom of
the case.
5. Switch on the electrical supply at the double pole
switch or pull cord. The power on neon indicator
will light at the switch.
6. On the shower unit press and hold the plus and
minus temperature buttons for a minimum of 3
seconds. The unit will bleep once and COLD water
flows into the shower and through to the shower
handset. When the water is free flowing and all
the air has purged through the system press the
start / stop button and this will stop the water flow.
7. Set the Flow control to mid position.
8. Press the start / stop button, you will hear an
audible bleep and the water will flow freely within a
few seconds.
NOTE: If the commissioning procedure is not used
the heaters will have a 6 second delay before they are
energised to allow the water to fill the unit (this only
happens on the first start up operation).
IMPORTANT: If the button does not respond ensure
that the flying lead from the PCB has been connected
to the back of the front cover. Ensure front cover is
isolated at the mains supply before removing.
9. The “Secret ‘til Illuminated” seven segment
display will activate and display digit 0.
10. Press the warmer (+) button and the display will
change to show digit 1. This will be confirmed
by a single audible bleep (if not deselected on
installation). Keep pressing the warmer (+)
button repeatedly until the digit reaches 6 which
when stable will give an outlet temperature of
approximately 40°C. This could take up to 30
seconds if the shower is starting from cold.
11. Fine tune the flow control to give a good shower if
required.
IMPORTANT: If the flow control valve is set to a very
high flow and the unit cannot reach the temperature
selected the seven segment display will continue to
blink once every 3 seconds. This indicates that the
flow rate needs to be reduced until the digit stops
blinking and the shower has reached the requested
temperature. Alternatively a lower temperature could
be selected.
12. Press the start / stop button to switch the unit off.
A single bleep will sound and initiate the PHASED
SHUT DOWN operation, detailed next.
IMPORTANT
The shower unit must be full of water before heat settings are used.
IMPORTANT
Turn the Temperature control knob anti-clockwise until the valve is fully open before switching on the unit.
This will ensure a fast fill up of the unit when the shower is first switched on.
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Содержание Thermo Response QI
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