Hitachi RAS-3FSVNE Betriebshandbuch Seite 36

17
SAFETY SUMMARY & CONTROL DEVICE SETTING
28
17. 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.
Model
For Compressor
Pressure Switches
High
For Control
Fuse
1~,220/240V,50Hz
CCP Timer
Setting Time
For Condenser Fan Motor
Internal Thermostat
For Control Circuit
Fuse capacity on PCB
18. TROUBLESHOOTING
Alarm Code Indication of Remote Control Switch:
Abnormal Abnormal Ref.
Indoor Unit No. Cycle No.
 
COOL
MED


ADDS. RN
A/C
ALARM
Code
Category
No.
01 Indoor Unit Tripping of Protection Device
02 Outdoor Unit Tripping of Protection Device
Abnormality between Indoor (or Outdoor) and
03
Outdoor (or Indoor)
Transmission
04 Abnormality between Inverter and Control PCB
05 Inverter
Abnormality between Inverter and Control PCB
Voltage Drop by Excessively Low or High
06 Voltage Drop
Voltage to Outdoor Unit
07 Decrease in Discharge Gas Superheat
Cycle
08 Increase in Discharge Gas Temperature
Cut-Out MPa
Cut-In MPa
ºA
min.
o
Cut-Out C
A
Alarm Code Model Code
COOL
Indicated
for a
second
alternately
Content of Abnormality
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.
RAS-3FSVNE
Automatic Reset, Non-Adjustable
(each one for each compressor)
-0.05
4.15
-0.15
3.20 ± 0.15
40
Non-Adjustable
3
Automatic Reset, Non-Adjustable
(each one for each motor)
120 ± 5
5
Connected No.
of Indoor Units Alarm Code
 
MED

ADDS. RN
A/C
ALARM
Failure of Fan Motor, Drain Discharge, PCB, Relay, Float Switch
Activated
Activation of PSH, Locked Motor
Incorrect Wiring, Failure of PCB, Tripping of Fuse, Power
Supply OFF
Failure in Transmission between PCBs for Inverter
Failure in Transmission between PCBs
Fan controller transmission failure
Voltage Drop of Power Supply. Incorrect Wiring or insufficient
Capacity of Power Supply Wiring
Excessive Refrigerant Charge, Expansion Valve Open Lock
Insufficient Refrigerant, Ref. Leakage, Clogging or Expansion
Valve Close Lock
RAS-(4/5)FSVNE
-0.05
4.15
-0.15
3.20 ± 0.15
50
3
120 ± 5
5
Model Code
Indication Model
Heat-Pump

Inverter

Multi

Cooling Only

Others

Leading Cause