Test Run; Test Run Mode Remote Control Switch - Hitachi FSG Series Service Manual

1.4

TEST RUN

1.4.1 TEST RUN MODE BY REMOTE CONTROL SWITCH
®
Turn ON the power source of the Indoor and Outdoor Units
¯
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 "05') are indicated on the remote control
switch, the connection of remote control cable is
correct. Go to ±
b) If no indication or "00" 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
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No indication
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Counting
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number of
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units is
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incorrect
Back to ® after checking
±
Select TEST RUN MODE by depressing MODE Switch
(COOL OR HEAT)
²
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 ³
³
Remote Control
Switch
Indication
The operation lamp
flickers. (1 time/1
sec.) And the Unit The unit does not start.
No. and Alarm
Code "03" flicker
The operation lamp
flickers. The unit does not start.
(1 time/2 sec.)
Indication of flicker The unit does not start, or start once
different to above and then stops
The outdoor fans rotate reversely
Normal
The outdoor fans do not start.
Back to ® after checking
´
Procedure for Recovery When Transmitting Circuit Fuse is
Blown Out:
1. Correct the wiring for the terminal board.
nd
2. Switch the 2 pin of the DSW on the PCB to "ON"
Operation Lamp
Fault
1. Connection between the connector and the wires:
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.
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
Unit Condition
The connecting wires of
operating line are incorrect or
loosened.
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 order of
power supply line is incorrect.
Some wires of power supply
line are disconnected.
TROUBLESHOOTING
F
Inspection Points after Power Source OFF
Red wire-No. 1, Black wire-No. 2, White wire-No. 3
F
MODE
RUN/STOP
F
Inspection Points after Power
Fault
1. Connecting Order of each Terminal
2. Screw fastening of each Terminal
3. Connecting Order of Power Line
This is the same as item ° 1, 2, and 3
Check by the alarm code table.
(Do it by service people).
Connecting Order of the Terminal Board:
TB1 in the Outdoor Unit
Connecting Point of Power Supply Line.
Contact Outdoor Fan Motor Connector.
Indoor PCB DSW7
21
2))
1
101
05
Counting Number of
Connected Units
E
Source OFF
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 ´)
Boards.
Between Indoor Units and Outdoor
Unit.
Outdoor PCB DSW10
21
2))