Automatic functions
The controller has a number of functions that cannot be accessed directly by a user,
and are managed by the controller. This section describes the functions and their
purpose.
Powerup signal
the PowerUp function signals that a power failure has occurred, if
this is the case the current water temperature flashes on the display.
Controlling the water temperature w
ater temperature is maintained automatically
and the spa will heat to within 0.5 °C either side of the desired temperature. When the
heater is activated, the corresponding icon on the display remains lit. The same icon
flashes when the water needs to be heated, but the heater is not active.
Setting the water temperature
– the desired water temperature in a spa can be set, in
0.5 °C steps, between 15 and 40 °C, using the Up and Down buttons from main
keypad. Depending on equipment, this will normally take 8 to 10 hours.
Smart winter mode
– function is activated automatically when the room temperature,
measured by a sensor located inside the controller, is less than 6 °C, so as to prevent
the water in the pipes of the spa from freezing.
This protection function automatically activates all the pumps and the blower for 1
minute at variable time intervals; the lower the room temperature the more frequently
the pumps will be started. The longest interval between two consecutive starts is two
hours. The activation of this function is not related to the water temperature inside the
spa. The filter LED will blink whilst the spa is operating in Smart Winter Mode.
Current management
This feature helps to avoid overloading the input breaker. If the LC mode (Low
current) is selected, the heater is not allowed to be on when the pump and the blower
are running. If the HC mode (High current) is selected, the heater is allowed to be on
when pump is running at the low speed together with blower. If the pump is running at
high speed the heater is automatically turned off.
Aqua Spa Owner´s Manual, page13
Low Level Programming
WARNING!!! The current management feature should only be adjusted by a
qualified spa technician. Any problems and damages cause by unauthorised
adjustment of the current management feature will invalidate your warranty.
It’s possible to configure various system operating parameters from the key pad.
This is normally done by the spa manufacturer, but may be done at any time. The
configuration will be stored in the controller’s memory. To program these system
parameters, the light key must be held for 20 seconds. After this time, the first
parameter will be displayed (see below). For each parameter, use the Up/Down key
to modify its value. The light key is used to accept the new value and switch to the
next parameter. The display returns to the normal display when there are no more
parameters to change. There are three (3) lowlevel programmable parameters:
First parameter HC/LC
With the Up/Down key is possible to select the HC (High current) or LC (Low
current) options and the speed of the pump.
Second parameter – BL/O3
With the Up/Down key is possible to select on of the two options.
If the user select BL it is possible to connect a blower or a single speed pump.
If the user selects O3 it is possible to connect an ozonator. In this case the keys on
the overlay will have the following composition: Pump1, Light, Up, Down.
Third parameter
With the Up/Down key is possible to select on of the two options.
TuC
The temperature on the display is showed in ° Celsius
TuF
The temperature on the display is showed in ° Fahrenheit.
To go from one parameter to the other one press the light key.
To save your settings and exit from the low level programming function press the
light key.
Error Messages
Highlimit error
The heater turns off when High Limit (HL) probe temperature reaches 48ºC.
This safety feature keeps the heater switched off until the temperature sensed by the
HL probe falls below 44ºC and the power is reset. Three blinking dots on the display
signify a high limit error.
Pressure switch error
Turns the heater off when there is a flow problem
The error will warning continue to be displayed until flow problem is resolved
The display will show three dots blinking.
Aqua Spa Owner´s Manual, page14
