Panasonic OCU-R200SF, Service Manual

Page: 34 / 52

During normal operation
e.g.
During abnormal operation
e.g.
（
1
）
High discharge pressure protection
（ 2 ） Over-current protection
（ 3 ） Discharge temp protection
（
4
）
Anti-phase protection
（ 5 ） Breaking protection for temp. sensor
（ 6 ） Compressor motor protection
Page
#
Condenser Fan Control
Protection Control
When the compressor is running, the speed of the condensing fan is controlled by the condensing temperature sensor. When the
condensing temperature is higher than the set value, the fan runs at high speed. When the condensing temperature is lower than the set
value, the condensing fan runs at medium speed.
Models
PCB Function
Low Pressure Control
With the running state of the compressor displayed on the LED of PCB,when the compressor is abnormal, the fault code indicating the abnormal reason can
be seen.
Display
OCU-NS350QSF-D
OCU-S700HF OCU-NS700HF OCU-NS500HF-D
OCU-S600HF OCU-NS600HF OCU-NS400HF-D OCU-S600QSF OCU-NS600QSF
OCU-S500HF OCU-NS500HF OCU-NR300SF-D OCU-S500QSF OCU-NS500QSF
OCU-S400HF OCU-NS400HF OCU-NR200SF-D OCU-S400QSF OCU-NS400QSF
OCU-S350HF OCU-NS350HF OCU-S350QSF-D OCU-S600SF OCU-NS600SF
OCU-R300SF OCU-NR300SF OCU-S500HF-D OCU-S500SF OCU-NS500SF
The running state, discharge temperature and condensation temperature are displayed alternately every 2 seconds
Delay time 1min 3min
OCU-R200SF OCU-NR200SF OCU-S400HF-D OCU-S400SF OCU-NS400SF
When the low pressure of the unit is lower than the OFF value of the pressure switch, the compressor will be shut down due to low pressure. When
the low pressure is higher than the ON value of the pressure switch, the compressor will be started up in a delay time of 1 minute set by the
factory.
On → 89 → 45
E00