Setting The Real Time Clock; Setting The Temperature Scale; Setting Pool And Spa Temperatures - Jandy LJ Installation And Operation Manual

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7.2.1 Setting the Real Time Clock

The 'REAL TIME CLOCK' displays the current
time when the heater is set to the "Internal Time
Clock" mode (see Section 7.4, "Heater/Control Opera-
tion"). In the event of a power interruption, the control-
ler remembers the last value of each setting, including
the 'REAL TIME CLOCK'. Any start-ups after a
power interruption will cause the display to flash the
time that the power went off. It is important to reset
the 'REAL TIME CLOCK' anytime the power to the
heater has been interrupted so that the 'PUMP TIME
CLOCK' operates the pump at the desired times. To
set the 'REAL TIME CLOCK' perform the following
steps:
1. Press the MODE key repeatedly until the words
'CLOCK SET' appear at the top of the display
screen.
2. Press the ENTER key. The hour indicator in the
lower right corner of the display will start to
flash.
3. Press the UP or DOWN key to adjust the hour.
The PM indicator shows for PM time. There is
no indicator for AM time.
4. When the hour is set correctly, press the ENTER
key. The minutes indicator will start to flash.
5. Press the UP or DOWN key to adjust the
minutes.
6. When the minutes are set correctly, press the
ENTER key. The minutes indicator will stop
flashing and the word 'NORMAL' will appear in
the upper left corner of the display screen to
indicate that the time has been set and the heater
is now in normal operating mode.
readings in either degrees Fahrenheit or degrees
Centigrade. Once the temperature scale is entered, it
may take up to 30 seconds to update the inlet water
temperature. To set the display to the desired 'TEM-
PERATURE SCALE' perform the following steps:
1.
2.
CLOCK SET
3.
PM
1:00
4.
6:00
6:00
which allows two different temperature settings,
selected by the SELECT key on the bottom of the
control panel. One mode can be set for normal use and
the other for standby; or one can be set for pool and
the other for a spa. This feature makes it easy to
switch between heating the pool and heating the spa
6:45
by eliminating the need to change the thermostat
setting to the desired temperature each time the switch
is made.
NOTE: The temperature set range for both the
'POOL' and 'SPA' settings is 70°F (21°C) to
104°F (40°C). If an attempt is made to set a
temperature outside of this range, the words
NORMAL
'INVALID COMMAND' will appear on the left
side of the display.

7.2.2 Setting the Temperature Scale

The LJ controller can display all temperature
Press the MODE key repeatedly until the icon
'°F/°C' appears at the top of the display screen.
Press the ENTER key. The temperature scale
indicator in the lower left corner of the display
will start to flash.
Press the UP or DOWN key to toggle between
°F and °C.
When the temperature scale is set to your
preference, press the ENTER key. The tempera-
ture scale indicator will stop flashing and the
word 'NORMAL' will appear in the upper left
corner of the display screen to indicate that the
desired temperature scale has been set and the
heater is now in normal operating mode.

7.2.3 Setting Pool and Spa Temperatures

The LJ controller has dual temperature modes,
°F / °C
°F
°C
NORMAL