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1.
Run the shower with the temperature control set to full cold and the flow set to high for
2 - 3 minutes and then stop the shower. Clean and if necessary renew the inlet filter
(see Maintenance) but do not refit either the filter, the filter cap or the shower front cover.
2.
Gradually turn on the water supply at the isolator valve enough to catch a small quantity
of water in the cup or container and measure the temperature. Isolate the water supply
again and record the temperature on the test record.
3.
Switch on the electrical supply to the shower and measure the voltage at the terminal
block. Isolate electrical supply again and record the voltage on the test record.
4.
Refit the inlet filter and filter cap. Turn on the water supply and check for leaks. Reprime
the shower (see Installation - Priming the Shower).
5.
Remove the handset from the hose. Position the end of the hose to allow water to drain
safely when the shower is running, if necessary secure the hose in this position.
6.
WARNING, LIVE ELECTRICAL WIRES ARE EXPOSED WHILE SHOWER IS RUNNING!
Connect the ribbon cable to the cover. Switch on the electrical supply to the shower and
run the shower with the temperature control turned to full hot ad the flow set to high.
Measure the supply voltage at the terminal block (this may require a second person to
assist). Stop the shower, isolate the electrical supply and record the voltage on the test
record.
(If the ribbon cable becomes disconnected the shower will assume a failure has occurred
and stop automatically. Isolate the electrical supply, reconnect the ribbon cable and restart
this section of the test.)
7.
Refit the cover and screws. Refit the handset to the hose and reattach to the slidebar or
handset holder.
8.
Switch on the electrical supply to the shower and run the shower with the temperature
set to full hot and the flow set to high. Using the plastic funnel, catch all the water flowing
from the handset and measure the temperature of the water flowing from the funnel.
Record the temperature on the test record. Using the flow measure cup, measure the
rate of water flow from the funnel and record the result on the test record.
9.
Run the shower set to full hot and the flow set to high. Slowly restrict the water supply
to the shower by closing the isolating valve gradually until the water starts to cavitate.
This is indicated by a change in the tone of the internal pump and a 'whooshing' sound
(typically this is achieved when the isolating valve is closed by at least half). Allow the
shower to run for 2 - 3 minutes to make sure that it will operate continuously, then measure
the water temperature and rate of flow as described in test 8 and record the results on
the test record. If the shower will not run continuously for at least 2 minutes, then the
isolating valve should be reopened fully and the shower reset and reprimed. Attempt a
retest without closing the isolating valve as much as previously. When a successful test
has been performed and recorded, reopen the isolating valve fully and set the temperature
to mid blend. Stop the shower and isolate the electrical supply.
If the normal operation outlet water temperature has changed by more than 1 ºC since the previous
inspection, or if either of the outlet water temperature measurements are more than 2 ºC above
the maximum temperature setting, the shower handset, hose and inlet filter should be checked
for blockages and cleaned and descaled or if required renewed. Checks should be performed to
confirm that any check valves or other backflow prevention devices are working correctly and that
any isolating valves in the supply pipework are fully open. The shower should be recommissioned
at the relevant maximum temperature setting and retested. If the temperatures are not able to be
brought in line with these requirements, the shower must not be used.
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