Operating instructions

STARTUP
Before turning on the power, make sure you have read the Start Up
instructions on page 6. When your hot tub power is first turned on
it will display a series of numbers identifying the software version
and the voltage input. It will then go into a 4 minute priming mode
indicated by a Pr on the LCD display. During priming mode the
Hush Pump will circulate the water through the filter and heating
system to allow the temperature to be read. If your hot tub is not
Hush Pump equipped, the jet pump will not turn on until the prime
mode times out or the button is pressed to time out early.
During prime mode the jet pump can be turned on to make sure
they are fully primed and moving water in the hot tub. Do not
allow an unprimed jet pump to run for more than 10 seconds. If
the fill water temperature is below 44°F/ 7 ° C freeze protection
will activate all pumps immediately. While the circulation pump is
running the display will show a - - indicating current temperature
is not known. This will take two minutes. Once temperature is
known it will be displayed on the LCD.
TEMPERATURE ADJUSTMENT
The temperature range is - 104°F / 26.0°C – 40.0°C. The
default is 100°F/37.5°C. Any temp changes are saved in the
system memory if power is interrupted. Press the button
to increase or lower the set points. If the is pressed the set
point will flash. Each press will move the set point 1 degree. If the
set point is moving the wrong direction then stop pressing, let the
temperature display stop flashing, then press again to move the
set point in the other direction. After adjusting the set temp, the
LCD will revert back to the current water temperature.
Note: if set temp is lowered more than 3°F/1.5C below current
water temp, the Hush Pump will stop. The circulation will restart
every 30 minutes to check if water temp has come down to set
temp. It will also run continually during programmed times.
HEATING MODES
St – Standard Mode (Default Mode ) In Standard Mode the
water is always heated to the set temperature. The display will
show the temperature always with Hush Pump equipped systems.
If non Hush Pump™, current water temperature will be shown
when the pump is running and – when pump is not running. If
your hot tub is not equipped with a Hush Pump, the 2 speed pump
will come on every 30 minutes outside of filter cycles to poll for
current water temperature. If you do not want this to happen, use
the Economy mode below.
Ec – Economy Mode: In Economy Mode the water is heated
only during the filter cycle times. The factory default is F4 (4
hours), 2C (twice a day). If using the Economy mode, you may
need to alter these times to make sure the water is your desired
temperature during your usual hot tub usage times. The first filter
cycle starts 6 minutes after power is turned on. The display will
alternate between the current temperature and Ec.
SL – Sleep Mode: In Sleep Mode the water is only heated to
within 20°F/11°C of your set point and the heater only comes on
during the programmed filter cycle times. This mode is typically
only used for vacation time. The display will alternate between the
current temperature and SL
To change heating modes, press the button then the
button.
MASSAGE
To activate this jet pump, press the button once to activate
low speed, twice to activate high speed and three times to turn the
pump off. The low speed will turn off automatically after 4 hours
and the high speed will turn off after 15 minutes. If the hot tub is
Hush Pump™ equipped, the low speed of the jet pump will come
on automatically for 1 minute at the start of each filter cycle to
purge the plumbing lines.
LightLightLight TempTempTemp
MassageMassageMassage
HeatHeatHeat
ET-50 TOPSIDE CONTROL PANEL OPERATING INSTRUCTIONS
15