SAFETY SUMMARY & CONTROL DEVICE SETTING
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16. SAFETY SUMMARY & CONTROL DEVICE SETTING
Compressor Protection
High Pressure Switch:
This switch cuts out the operation of the compressor
when the discharge pressure exceeds the setting.
Fan Motor Protection
When the thermistor temperature is reached to the
setting, motor output is decreased.
The other way, when the temperature becomes lower,
limitation is cancelled.
Model RAS-2HVRN1 RAS-2.5HVRN1
For Compressor
Pressure Switches
Automatic Reset, Non-Adjustable (each one for each
compressor)
-0.05 -0.05
High Cut-Out MPa 4.15 4.15
-0.15 -0.15
Cut-In MPa
3.20 ± 0.15 3.20 ± 0.15
For Control
Fuse
1φ, 230V, 50Hz
A25 25
CCP Timer Non-Adjustable
Setting Time
min.
33
For Condenser Fan Motor
Internal Thermostat
Automatic Reset, Non-Adjustable (each one for each
motor)
Cut-Out
o
C
120 ±5 120 ±5
For Control Circuit
Fuse Capacity on PCB A 3 3
17. TROUBLESHOOTING
Alarm Code Indication of Remote Control Switch:
Model Code
Indication Model
Abnormal
Indoor Unit No.
Abnormal Ref.
Cycle No.
Alarm Code Model Code
Connected No.
of Indoor Units
Alarm Code
Heat-Pump
"
Inverter
Multi
Cooling Only
Others
Indicated
for a
second
alternately
Code
No.
Category Content of Abnormality Leading Cause
01 Indoor Unit Tripping of Protection Device
Failure of Fan Motor, Drain Discharge, PCB, Relay, Float Switch
Activated
02 Outdoor Unit Tripping of Protection Device Activation of PSH, Locked Motor
03
Abnormality between Indoor (or Outdoor) and
Outdoor (or Indoor)
Incorrect Wiring, Failure of PCB, Tripping of Fuse, Power
Supply OFF
04
Transmission
Abnormality between Inverter and Control PCB Failure in Transmission between PCBs for Inverter
06 Voltage Drop
Voltage Drop by Excessively Low or High
Voltage to Outdoor Unit
Voltage Drop of Power Supply. Incorrect Wiring or insufficient
Capacity of Power Supply Wiring
07 Decrease in Discharge Gas Superheat Excessive Refrigerant Charge, Expansion Valve Open Lock
08
Cycle
Increase in Discharge Gas Temperature
Insufficient Refrigerant, Ref. Leakage, Clogging or Expansion
Valve Close Lock
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