Test Run Procedure Using The Remote Control Switch - Hitachi RAS-5HVRNM1E Service Manual

7 Test Run

7.2 Test run procedure using the remote control switch

1 Turn ON the power source to the indoor and outdoor units.
2 Select the TEST RUN mode by using the remote control switch:
press MODE switch and the OK switch simultaneously for more
than 3 seconds.
a If the TEST RUN indication and the counting number of the
connected units to the remote control switch (for example
05) are displayed on the remote control switch, the
connection of remote control cable is correct. Go to point 4.
b If no indication or 00 appears or if the number of the units
that is displayed is smaller than the actual number of the
units, there is some abnormal operation. Go to point 3.
3
Remote control switch
indication
• The power source is
not turned ON.
• The connection of
the remote control
cable is incorrect.
No indication
• The connect wires
of the power supply
line are incorrect or
loosened.
• The setting of the
unit number is
incorrect.
• The connection of
the control cables
The counting number of
between each
the connected units is
indoor unit is
incorrect
incorrect. (When
multiple units are
controlled by one
remote control
switch).
Go back to point 1 after the check.
4 Select the TEST RUN mode by pressing MODE (COOL or HEAT).
5 Press RUN/STOP switch.
a The TEST RUN operation will start. (The TEST RUN operation will be finish after two hours. You can also finish the
TEST RUN operation by pressing the RUN/STOP switch again).
b If the unit does not start or if the operation LED on the remote control switch is flickering, there is some abnormal
operation. Go to point 6.
176
SMGB0060 rev. 1- 12/2010
Inspection points after
Fault the power source is
OFF
a
The connection
between the remote
control and the unit
is correct
b
Connecting points
of the remote control
cable.
c
The contact of the
connectors of the
remote cable.
d
The screw fastening
of each terminal
board.
a
Settings of the DIP
switches on the
printed circuit board.
b
Wire connection
order of the bridge
cable.
c
Connecting points
of the bridge cable.
d
The contact of the
connectors of the
bridge cable.