Danfoss OPTYMA, Operation And Maintenance Manual

Page: 18 / 28

18 RS8FE102, 080R9278
©
Danfoss A/S (RA Marketing/MWA), Nov. 08
OPTYMA
TM
Control three-phase Operation and Maintenance Guide
Level 1 - Programming (User Level)
To gain access to the Level 1 configuration menu
proceed as follows:
1. Press the (

) and (

) keys simultaneously and
keep them pressed for a few seconds until the first
programming variable appears on the display.
2. Release the (

) and (

) keys.
3. Select the variable to be modified using the (

)
and (

) key.
4. When the variable has been selected it is
possible to:
• display the setting by pressing SET key
• modify the setting by pressing the SET key
together with the (

) and (

) key.
When configuration values have been set
exit the menu by pressing the (

) and (

)
keys simultaneously for a few seconds until the
cold room temperature reappears.
5. The new settings are saved automatically when
you exit the configuration menu.
List of Level 1 variables (User Level)
Variables Explanation Value Default
r0 Differential above main SETPOINT*
* SETPOINT see page 10
0.2 - 10 K 2K
d0 Defrost interval (hours) 0 - 24 hours 4 hours
d2 End-of-defrost setpoint.
Defrosting will not take place if the temperature detected by the defrost
sensor is greater than d2 (If the sensor is faulty, defrosting is timed)
-35 - 45 °C 15°C
d3 Max defrost duration (minutes) 1 - 240 min 25 min
d7 Drip duration (minutes)
At the end of defrost, the compressor and fans remain at standstill for time
d7 and the defrost LED on the front panel flashes.
0 - 10 min 0 min
F5 Fan pause after defrost (minutes)
Allows fans to be kept at standstill for time F5 after dripping. This time
begins at the end of dripping. If no dripping has been set, the fan pause
starts directly at the end of defrost.
0 - 10 min 0 min
A1 Minimum temperature alarm
Allows user to define a minimum temperature for the room being
refrigerated. Below value A1 an alarm trips: the alarm LED flashes, the
displayed temperature flashes and the buzzer sounds to indicate the
problem.
- -45°C
A2 Maximum temperature alarm
Allows user to define a maximum temperature for the room being
refrigerated. Above value A2 an alarm trips: the alarm LED flashes, the
displayed temperature flashes and the buzzer sounds to indicate the
problem.
- +45°C
tEu Evaporator sensor temperature display Displays
evaporator
temperature
(displays
nothing if
dE =1)
read
only