Panasonic OCU-CR1001VF Installation Instructions Manual page 26

Setting and Indication of the Control PCB
Low Pressure Setting
Set the refrigeration operation to OFF and then supply power. With this condition, execute initial setting.
(1) Low pressure setting procedure
• Turn ON the DIP switch SW13－8.
• Align the rotary switch (knob) with the position corresponding to each setting ( "ON" or "OFF" of "Pressure Setting" ).
• Change the setting by pressing
• Set the rotary switch (knob) back to "Operation" position, and turn OFF the DIP switch SW13-8.
Note: When turning OFF the DIP switch SW13-8, the setting value is stored.
(2) Standard pressure setting
The standard pressure setting at the shipment is as shown in No.3 of the "Standard Pressure Setup Table" below.
Since the standard setting can be changed at once, use the following procedure as required.
• Align the rotary switch (knob) with "Standard pressure setting" . . . . . . . . . . . . . . . . The digital display indicates "F."
• Press or button to select the desired number . . . . Each set value for the number is shown in the table below.
▲ ▼
• Set the rotary switch (knob) to "Operation" position.
Note: When turning the knob back to "Operation", the selected standard pressure setting is stored.
<Standard Pressure Setup Table>
No. Use
1 Refrigerator
2 Veg, fruits, etc.
3 Meat, fish
4 Freezer, ice
Lowest low pressure to cause the compressor to stop.
Lim value:
Caution
1. Set the rotary switch (knob) to "Operation" position for other than setting or inspection.
2. Setting the rotary switch (knob) "Operation" makes the digital display repeatedly indicate "Low pressure
pressure Unit outlet pressure" during the refrigeration unit operation.
or .
▲ ▼
Compartment Evaporating
temperature temperature
(°C) (°C)
+3 to +10 -5
-2 to +10 -7
-5 to 0 -12
-30 to -22 -35
(Operation)
(Alarm
Knob
history)
警報
(Discharge)
(Suction)
(Frequency)
Rotary switch
ON value OFF value
(MPa) (MPa)
3.32 3.08
2.98 2.86
2.60 2.48
1.36 1.24
(Pressure)
(Standard pressure setting)
Low‐press.
Lim value
DIFF. value
(MPa)
(MPa)
0.24
0.24
0.24
0.12
(Operation mode)
2.84
2.62
2.24
1.12
High
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