8
Operation
User Manual
SERENE SC112G
Normal and
Energy Saving
Modes
The electronic controller can be switched between two operating modes:
‘Normal’ mode and ‘Energy Saving’ mode. When in Normal mode, the
interior lights are on and the internal temperature is regulated to the setpoint
setting (see page 9). When in Energy Saving mode, the interior lights are off
and the internal temperature is raised slightly above the setpoint.
To switch the chiller between Normal and Energy Saving modes, press and
hold the Energy Save (up) button on the electronic controller faceplate (see
page 7).
To turn the lights on or off without switching between Normal and Energy
Saving mode, press the Light button on the electronic controller faceplate.
The electronic controller can be programmed to automatically switch the
chiller between ‘Normal’ and ‘Energy Saving’ modes depending on
customer usage. If the front door (electronic controller side) is not opened
for a set amount of time, the chiller will automatically enter Energy Saving
mode. To set the times for automatic switching between Normal mode and
Energy Saving mode, follow the procedure below.
To change the time between ‘Normal’ and ‘Energy Saving’ modes
1. Press and hold the
set
button for 3 seconds until
PS
is
shown on the display, indicating entry into the controller
settings menu.
2. Press the
down
button to scroll the menu until
r6
is
shown on the display.
The
r6
value is the time (in hours) without the door
being opened. When this time is reached (during store
closing hours or quiet periods) the electronic controller
will switch the chiller from ‘Normal’ mode to ‘Energy
Saving’ mode. The
r6
value must be
≥
1 hour.
IMPORTANT
Do
not
set r6 to 0.
3. Press the
set
button. The current
r6
value (in hours) is shown on the display.
4. Press the
up
or
down
button to increase or decease the value (in hourly
increments).
5. Press the
set
button to temporarily save the new
r6
value.
6. Press the
down
button to scroll the menu until
r7
is
shown on the display.
The
r7
value is the maximum time (in hours) that the
chiller will stay in ‘Energy Saving’ mode. When this time
is reached the electronic controller will switch the chiller
from ‘Energy Saving’ mode to ‘Normal’ mode.
7. Press the
set
button. The current
r7
value (in hours) is shown on the display.
8. Press the
up
or
down
button to increase or decease the value (in hourly
increments).
9. Press the
set
button to temporarily save the new
r7
value.
10. Press and hold the
set
button for 3 seconds to permanently save the new
values and exit the controller settings menu.
