Main Safety Devices - Hitachi RAS-4FSVN3E Bedienungsanleitung

MAIN SAFETY DEVICES

Remote Control
Switch Indication
The power source of Outdoor Unit is not
turned ON.
The connection of the remote control cable
No indication
is incorrect.
The connecting wires of power supply line
are incorrect or loosened.
The power source of Outdoor Unit is not
turned ON.
The operating line wiring between indoor
Counting number
unit and outdoor unit is not connected.
of connected units
is incorrect
The connection of control cables between
each indoor units are incorrect. (When
one remote control switch controls multiple
units)
Instructions fot the recovery when the fuse of the transmission circuit is blown out:
1
Correct the wiring to the terminal board.
2
Set the 1st pin of DSW7 on the indoor unit PCB to ON.
12 MAIN SAFETY DEVICES

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.
For Compressor
Pressure Switches
High
Low
for control
Fuse
1~ 230V 50Hz
3N~ 400V 50Hz
CCP Timer
Setting Time
For Condenser Fan Motor
Internal Thermostat
For Control Circuit
Fuse on PCB
18 PMML0389B rev.1 - 07/2016
Wrong Portions
Model
- Automatic Reset, Non-Adjustable (each one for each compressor)
Cut-Out MPa
Cut-In MPa
Cut-Out MPa
Cut-In MPa
-
A
A
-
min.
-
A
Inspection Points after Power Source OFF
1
Connecting Points of Remote Control Cable terminal board of Remote
Control switch and indoor unit.
2
Contact of Terminals of Remote Control Cable
3
Connection Order of each Terminal Board
4
Screw Fastening of each Terminal Boards.
5
Dip Switch Setting on Printed Circuit Board
6
Connecting on the PCB
7
This is the same as item 1, 2 , and 3.
RAS-(4-6)FSVN3E
4.15
3.20
0.30
0.20
40
--
Non-Adjustable
3
Automatic Reset, Non-Adjustable (each one for each motor)
5
RAS-(4-6)FSNY3E
--
2 X 20