Hitachi RPC-6.0FSN2E - Safety Summary, Control Settings, and Troubleshooting; Safety Summary and Control Device Settings; Troubleshooting Guide

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INSTALLATION AND OPERATION MANUAL
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-3HVRNME RAS-4HVRNM1E RAS-4HVRNS1E
RAS-5HVRNM1E
RAS-5HVRNS1E
RAS-6HVRNM1E
RAS-6HVRNS1E
RAS-4HRNM1E
RAS-5HRNM1E
RAS-6HRNM1E
For Compressor
Automatic Reset, Non-Adjustable (each one for each compressor)
Pressure Switches
-0.05 -0.05 -0.05 -0.05 -0.05
High Cut-Out MPa 4.15 4.15 4.15 4.15 4.15
-0.15 -0.15 -0.15 -0.15 -0.15
Cut-In MPa 3.20±0.15 3.20±0.15 3.20±0.15 3.20±0.15 3.20±0.15
For Control
A
A
40
-
40 50 50 40
2X20
Fuse
1φ, 230V, 50Hz
3φ, 400V, 50Hz
CCP Timer
min.
Non-Adjustable
Setting Time 3 3 3 3 3
For Condenser Fan Motor
Automatic Reset, Non-Adjustable (each one for each motor)
Internal Thermostat
Cut-Out
o
C - - - - -
For Control Circuit
A 5 5 5 5 5
Fuse Capacity on PCB
17. TROUBLESHOOTING
Alarm Code Indication of Remote Control Switch:
Abnormal Indoor
Unit No.
Abnormal Ref.
Cycle No.
Alarm Code Model Code
Connected No. of
Indoor Units
Alarm Code
Model Code
Indication Model
H
Heat-Pump
Indicated for
a second
alternately
P
Inverter
F
Multi (Set-Free)
C
Cooling Only
E
Others

Twin, Triple and Quad
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
Transmission
Abnormality between Indoor (or Outdoor) and
Outdoor (or Indoor)
Incorrect Wiring, Failure of PCB, Tripping of Fuse, Power Supply OFF
04 Abnormality between Inverter and Control PCB
Failure in Transmission between PCBs for Inverter
05 Power Supply Abnormality power supply Abnormal wave form of power supply.
06 Voltage Drop
Voltage Drop by Excessively Low or High
Voltage to Outdoor Unit
Voltage Drop of Power Supply. Incorrect Wiring or insufcient
Capacity of Power Supply Wiring
07
Cycle
Decrease in Discharge Gas Superheat Excessive Refrigerant Charge, Expansion Valve Open Lock
08 Increase in Discharge Gas Temperature
Insufcient Refrigerant, Ref. Leakage, Clogging or Expansion Valve
Close Lock
COOL
MED
ADDS. RN
A/C ALARM
P
COOL
MED
ADDS. RN
A/C ALARM
PMML0197_r0_04-10.indb 40 08/07/2010 9:21:00