9
is 10
，
Name of channel is 0-9
。
Ⅵ）、
The volume can be changed by pressing key
“
SET
VOL+
”
&
“
OPEN
”。
(11)Operation to Pump :
KEY of “Pump1” are control surf pump1 & surf pump2 , Key of “Pump2” are for water Column &
waterfall pump(water Column light is working synchronization). Key of “Pump 3” are only for pump3 When turn on
pump 3
，
LCD will show
，
in spite of the heating and circulation is on or off
。
T
he LCD will show
sequently
。
When pump3 off and heating
（
including pre-heating
）
and circulation start
，
PUMP1 & PUMP2 will auto off when working 2 hour later
。
(12) Operation to Ozone
：
The ozone could be started up in the status of circulation cleaning
。
Press the key
“
OZONE
”
to turn on/off the ozone
。
After the startup of ozone
，
if the user would not
change the working status of ozone
，
it will be turned off automatically 5 minutes later
。
(13) Operation to Bottom lamp
：
“
”
controlling the ON/OFF of the lamp in the bottom of the bathtub
。
(14) Operation to Constant temperature heating
：
1)
、
When the pre-heating time is up
（
If the pre-heating has turned on
）
or press the
“
HEAT
”
will
also start constant temperature heating system
。
2
）、
After the startup of constant temperature heating
，
circulation pump will be running all the while
。
3)
、
For example
：
if the temperature is set at 35
℃，
when the water temperature reaches or exceeds 36
℃，
the heater will be turned off automatically and the circulation pump will stop after 5 second
（
If PUMP3 is turn
off
）。
However
，
when the water temperature reach or lower than 34
℃，
the heater will start up
。
4)
、
When the temperature sensor is open/short (LCD shows ”E1”)
，
the auto temperature control system
will not be available
，
Turning on/off the constant temperature system will turn on/off the heater
。
(15) Operation to blower
：
there is a key
“
C
F/
”
controlling the on/off of blower
。
BLOWER will auto off when working 2 hour later
。
(16)Fahrenheit & Celsiur temperature shift
：
In the status of
“
U
Power off
U
”，
pressing the key
“
C
F/
”
can change the mode of
Fahrenheit & Celsiur
temperature
。
(17)
When there is no water in the bathtub
，
water pumps
、
blower and constant temperature system will not
start up
。
However
，
the corresponding signal on the LCD will flash
。
(18) Frozen preventing control
：
The heater & circulation pump will on when water temperature is under 5
℃，
And will off when up 10
℃。
The
function is effective when power on
。
4.Electric parameters
Summary of Contents for SPA-8028
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