P/N 0515957_M
3-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
DDSS Open Vertical Merchandisers
RTN400
Page 16/130
LED
RTN400
family controllers will also function even if a keyboard has not been connected.
With
KDEPlus
or
KDWPlus
keyboards (which are the same and guarantee the same functions), the display will be as follows:
1
2
5
6
8
7
4
3
Meaning of LEDs:
No
Icon
LED
Operation
Meaning
1
Compressor
Permanently on
compressor on
Blinking
Delay, protection or start-up blocked
OFF
otherwise
2
Defrost
Permanently on
Defrost active
Blinking
Activated manually or from Digital Input
OFF
otherwise
3
Fans
Permanently on
Fans active
OFF
otherwise
4
Reduced SET / Economy
Permanently on
Energy Saving active
Blinking
Reduced setpoint active
OFF
otherwise
5
Alarm
Permanently on
alarm active
Blinking
Alarm acknowledged
OFF
otherwise
6
°F readout
Permanently on
°F setting (dro =1)
OFF
otherwise
7
AUX
Permanently on
Aux output active and/or light on
Blinking
Deep cooling on
OFF
otherwise
8
°C readout
Permanently on
°C setting (dro = 0)
OFF
otherwise
N.B.
:
When the instrument is powered on it performs a lamp test, during which time the display and LEDs will
flash for several seconds to check that they all function correctly.
