Hitachi FSG Series, Technical Catalogue

Page: 379 / 424

TEST RUN
17
/3
17.2 TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH
É
Turn ON the power source of the Indoor and Outdoor Units
Ê
Set the TEST RUN mode by remote control switch.
Depress the "MODE" and the "CHECK" switches
simultaneously for more than 3 seconds.
a) If "TEST RUN" and the counting number of the
connected units to the remote control switch (for
example "
01
") are indicated on the remote control
switch, the connection of remote control cable is
correct. Go to
Ì
b) If no indication or "••" appear 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
Fault Inspection Points after Power Source OFF
No indication
§
The power source is not turned ON.
§
The connection of the remote control
cable is incorrect.
§
The connecting wires of power supply
line are incorrect or loosened.
1. Connection between the connector and the wires:
Red wire-No. 1, Black wire-No. 2, White wire-No. 3
2. Connecting Points of Remote Control Cable
3. Contact of Connectors of Remote Control Cable
4. Connection Order of each Terminal Board
5. Screw Fastening of each Terminal Boards.
Counting number
of connected
units is incorrect
§
The setting of unit number is incorrect
§
The connection of control cables
between each indoor units are
incorrect. (When one remote control
switch controls multiple units)
6. Dip Switch Setting on Printed Circuit Board
7. Wire Connecting Order of Bridge cable
8. Connecting Points of Bridge Cable
9. Contact of Connectors of Bridge Cable
Ë
Back to
É
after checking
Ì
Select TEST RUN MODE by depressing MODE Switch (COOL OR HEAT)
Í
Depress RUN/STOP switch.
a) The "TEST RUN" operation will be started. (The "TEST RUN" operation will
be finished after 2 hours unit operation or by depressing the RUN/STOP
switch again).
b) IF the unit do not start or the operation lamp on the remote control
switch is flickered, some abnormalities exist. Go to
Î
Remote Control
Switch
Indication Unit Condition
Fault Inspection Points after Power Source OFF
The operation lamp
flickers. (1 time/1
sec.) And the Unit
No. and Alarm
Code "03" flicker
The unit does not start.
The connecting wires of
operating line are
incorrect or loosened.
1. Connecting Order of each Terminal Boards. The fuse on
the PCB may be blown out due to miswiring. (Can be
recovered only once by the DSW on the PCB). (See
Ï
)
2. Screw fastening of each Terminal Boards.
3. Connecting Order of Power Line Between Indoor Units
and Outdoor Unit.
The operation lamp
flickers.
(1 time/2 sec.)
The unit does not start.
The connection of remote
control cable is incorrect
This is the same as item
Ë
1, 2, and 3
Indication of flicker
different to above
The unit does not start,
or start once and the
stops
The connection of
thermistor or other
connectors are incorrect.
Tripping of protector
exists, or else.
Check by the alarm code table in the service manual (Do it
by service people).
The outdoor fans rotate
reversely
The connection order of
power supply line is
incorrect.
Connecting Order of the Terminal Board: TB1 in the
Outdoor Unit
Normal
The outdoor fans do not
start.
Some wires of power
supply line are
disconnected.
Connecting Point of Power Supply Line. Contact Outdoor
Fan Motor Connector.
Î
Back to
É
after checking
Ï
Procedure for Recovery When Transmitting Circuit Fuse is Blown Out:
1. Correct the wiring for the terminal board.
2. Switch the 1
st
pin of the DSW7 on the Indoor PCB to "ON"
3. Switch the 2
nd
pin of the DSW10 on the Outdoor PCB to "ON
Indoor PCB DSW7
ON
1 2
Outdoor PCB DSW10
ON
1 2
.
.
MODE
RUN/STOP
05
.
-
Counting Number of
Connected Units
Operation Lamp