Danfoss Optyma iCO2 User Manual page 30

User Guide | Optyma™ iCO2
Following table also shows examples of setting for reference.
SW1 SW2
0
Tens place Ones place
A guide for setting of pressure value is shown below.
<Example setting value>
Inside compartment
Purpose
temp. range
Fruit,
2~15°C
vegetables
Meat, fishes -2~2°C
Frozen foods -20°C~-18°C
The low pressure setting (OFF value, ON value) and error pressure in the table above become as shown below depending on the evaporation temperature
Evaporation temperature
(setting value)
-5
~
-19
-20
~
-29
-30
~
-45
When the evaporation temperature (setting value) is 5°C - -19°C, the low pressure cut value can be adjusted with the dip switches SW4-7, 4-8. (Although
13.3 bar is equivalent to evaporation pressure at -30°C, the compressor can be stopped without lowering to -30°C by setting as shown in the table below.)
SW4-7 and SW4-8 at the shipment is "SW4-7" = "OFF", "SW4-8" = "ON".
Shows the low pressure setting OFF value converted from evaporation temperature.
Low pressure control setting pressure (LPSP)
LPSP ≥ 18.7 bar
18.7 bar > LPSP ≥ 13.3 bar
13.3 bar > LPSP
SW SW
4-7 4-8
OFF OFF
ON OFF Pressure equivalent to "Evaporation temperature (setting value) -5°C"
OFF ON Pressure equivalent to "Evaporation temperature (setting value) -10°C"
ON ON Pressure equivalent to "Evaporation temperature (setting value) -15°C"
30 | BC408445719305en-000101
0
Insert tip of flat head
(precision) screwdriver
in this slot, and adjust
at a number.
Inside compartment
std.setting (Thermo
ON value)
5~10°C
0°C
-18°C
Converted pressure
(setting value)
38.7 bar
~ 19.3 bar
18.7 bar
~
13.8 bar
13.3 bar
~
7.3 bar
Low pressure setting OFF value "X"
29.45 bar > LPSP
13.3 bar
<Examples of other setting>
Evaporation Pressure equivalent
temp. to evaporation
(Setting value) temp.
-10°C 25.5 bar
-17°C 20.6 bar
-40°C 9.0 bar
Low pressure
setting OFF value
Evaporation temperature
13.3 bar Converted pressure (setting value)
+5.0 bar
Evaporation temperature
9.0 bar Converted pressure (setting value)
+3.0 bar
Evaporation temperature
6.0 bar Converted pressure (setting value)
+2.0 bar
Low pressure setting OFF value
X bar
9.0 bar
6.0 bar
© Danfoss | Climate Solutions | 2023.01 | LCA012A030
Evaporation SW1
temp. to set (Tens place)
5°C 7
-5°C 0
-10°C 1
-40°C 4
Low pressure Low pressure
setting OFF setting ON
value
13.3 bar
13.3 bar
6.0 bar
Low pressure
setting ON value
LPSP ≥ 29.45 bar
13.3 bar
25.47 bar
21.89 bar
18.68 bar
SW2
(Ones place)
5
5
0
0
Error
pressure
value
30.5 bar 5.8 bar
25.6 bar 5.8 bar
11.0 bar 5.8 bar
Error pressure
5.8 bar
Dip switch
SW SW
4-7 4-8
ON OFF
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