Ifilter Maintenance; Abnormal Operating Conditions; And Alarm Signals - Jacuzzi Experience Alimia Installation Manual

CAUTION:
Never clean the filters with the pumps running.
Turn the main switch off first. Always turn the mas-
ter switch off when the spa is empty.
I
FILTER MAINTENANCE
To clean the quartz sand filter, you will periodically need to per-
form backwashing based on the information provided by the
gauge located on the selector valve. This means that you will
need to note the pressure indicated on the gauge during sys-
tem start-up, or at the end of a backwash period. This value
varies depending on the type of system and the length of the
pipes in the system, and is normally less than one atm. When
this value rises to 0.2 atm above the initial value, you must per-
form backwashing of the filter.
To perform backwashing, you must stop all the pumps, place the
selector valve in position (2) and then start the filtering pump.
You must also close the valve of the suction line from the com-
i
pensation tank ( 2a, 3, 3a - detail 31) and completely open
the valve on the suction line of the spa (
tail 31).
After a few minutes, or when the drain water is clean (this can
be seen in the transparent glass on the selector valve), refill the
tub and restore initial operating conditions (filter in position"1", ball
valves and switches in normal operating conditions).
The sand in the filter needs to be changed when good water
filtering is no longer provided. This is indicated by the need to
increase the frequency of backwashing of the filters. Deterio-
ration of the sand is mainly attributable to water hardness, but
also to certain contaminants that may cause cementing of the
filtering material.
NOTE: Generally, the sand may need to be changed every 3-
4 years, with family use of the spa and water hardness of
about 20 °fr.

ABNORMAL OPERATING CONDITIONS

AND ALARM SIGNALS

The presence of an alarm is shown on the display, with the
code for the type of signal, and the "set" key is lit up.
If there are simultaneous alarms, the first one shown will be
the one with the lowest code number. Press the "set" key to in-
terrupt the signal and move on to the display of the next alarm.
If the alarm condition persists, the corresponding code will
continue to be shown.
There are two type of alarms, those which reset automatically and
those that do not reset automatically.
- If the alarm can be automatically reset, as soon as the caus-
es of the alarms are eliminated, the system restarts on its own.
i
2, 2a, 3, 3a - de-
37
The alarm will still be displayed until the "set" key is pressed.
The presence of a lighted dot on the display at the last numeral
indicates that the alarm resets automatically.
- If the alarm is not automatically reset, after eliminating the
causes you will need to manually restart the system.
Reason for alarm
- possible solution
"FLC" in some models, the initials "FLC" may appear on the
display. The flow switch detects water flow when there is none.
This may happen if the flow switch, which is connected in series
to the heater, is blocked by deposits or impurities which keep it
from operating properly. The flow switch may also be faulty.
- Contact an authorized Jacuzzi
"FLO" (flashing) The probe does not detect the water flow
(the heater cannot be turned on).
The cartridge filter and/or filter pump may be clogged.
The system is attempting to reactivate the heater (three at-
tempts are made).
"FLO" (stable) The system attempted to activate the heater
however no water flow was detected.
- Try turning the switch up the line from the spa off and back on;
if this warning state persists, contact an authorized Jacuzzi
service centre.
"HOH" The measured temperature at the heater is 48 °C
(118 °F) or higher.
DO NOT ENTER THE WATER
This alarm, which is displayed alternating with the time and
temperature, will disappear as soon as the value drops below
44 °C (111 °F).
- If the alarm condition persists, try turning the switch up the line
from the spa off and back on. If the signal stays on, contact an
authorized Jacuzzi ® service centre.
"Ho" Excessive water temperature.
DO NOT ENTER THE WATER
The water temperature has reached or exceeded 44 °C (111 °F).
It is not possible to activate any function.
- If present, remove cover from spa.
- If the excessive temperature increase is due to sunlight, add cold
water to the spa.
When the temperature has dropped to below 43 °C (109 °F), the
spa should re-activate automatically. If it does not, disconnect the
power supply and contact an authorized Jacuzzi
"rPF" Defective temperature probe
DO NOT ENTER THE WATER
It is not possible to activate any function.
- Check that the temperature probe is working, or replace it.
"HPF" Activation of safety thermostat.
It is not possible to activate the electric heater.
® service centre.
® service centre.
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