Hitachi SET FREE MINI RAS-3 Manuel D'installation page 34

16
TEST RUNNING
26
16.1. TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH
É
Turn ON the power source of the Units
Procedure for "TEST RUN" mode of remote control switch.

Depress the "MODE" and the "CHECK" switches together for more
than 3 seconds.
a If "TEST RUN" and the counting number of the connected
units to the remote control switch (for example "  ") are
indicated on the remote control switch, the connection of
remote control cable is correct. → Go to 
b If no indication appears or the number of the units indicated
is smaller than the actual number of the units, some
abnormalities exist. → Go to 
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
unit and outdoor unit is not connected.
Counting number
of connected
The setting of unit number is incorrect
units is incorrect
(Only Twin Type)
The connection of control cables between
each indoor units are incorrect. (When one
remote control switch controls multiple units)
Back to  after checking
Select TEST RUNNING MODE by depressing "MODE" Switch (COOL OR HEAT)

Depress RUN/STOP switch.

a The "TEST RUN" operation will be started. (The 2 hours OFF-TIMER will be set and the "TEST RUN" operation will be finished
after 2 hours unit operation or by depressing the "RUN/STOP" switch again).
NOTE: The "TEST RUN" operation ignores the temperature limitation and ambient temperature during heating operation to have
a continuous operation, but the protections are alive. Therefore, the protection may activate when the heating "TEST
RUN" operation is performed in high ambient temperature.
b If the unit do not start or the operation lamp on the remote control switch is flickered, some abnormalities exist. → Go to 
Remote Control

Switch Indication
The operation lamp
flickers. (1 time/1
The unit does not
sec.) And the Unit
start.
No. and Alarm Code
"03" flicker
The operation lamp The unit does not
flickers. (1 time/2 s) start.
The unit does not
Indication of Flicker
start, or start once
except above
and then stops
The operation lamp
Flickers. (1 Time/1s)
The unit does not
Unit No.  , Alarm
start.
Code  and Unit
Code  flicker
Back to  after checking
Wrong Portions
Unit Condition
Wrong Portions
The power source of Outdoor Unit
in not turned ON.
The connecting wires of operating
line are incorrect or loosened.
Remote control cable is broken.
Contact of connectors is not good.
The connection of remote control
cable is incorrect
The connection of thermistor or
other connectors are incorrect.
Tripping of protector exists, or else.
The connection of the remote
control cable between Indoor Units
is incorrect.
Operation
Lamp
Inspection Points after
the 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. Connection on the PCB
7. This is the same as item  1, 2, and 3
Inspection Points after
Power Source OFF
1. Connecting Order of each Terminal Boards.
2. Screw fastening of each Terminal Boards.
NOTE: Recovering method of FUSE for operating
circuit. There is a fuse ("FUSE4" on Indoor Unit
PCB1, "EF1" on Outdoor Unit PCB1) to protect
operating circuit on the PCB, when the power
lines are connected to operating lines. If fuse is
melted, operating circuit can be recovered once
by setting the dip switch on the PCB, as below:
DSW5
* Set the switch #1 to ON position to recover the
Operation circuit.
This is the same as item  1, 2
Check by the abnormality mode table in the
Technical Catalogue (Do it by service people).
Check by the abnormality mode table in the
Technical Catalog (Do it by service people).
Counting
number of
connected
units
ON ON
RPK
1 2 1 2