Hitachi UTOPIA IVX PREMIUM Series Installations- Und Betriebshandbuch Seite 41

Test running
16.1 TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH (PC-ART EXAMPLE)
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 "
for more than 3 seconds.
a.
If "TEST RUN" and the counting number of the connect-
ed units to the remote control switch (for example

are indicated on the remote control switch, the connec-
tion of remote control cable is correct.→Go to
b.
If no indication appear or the number of the units indicat-
ed 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
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)
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).
N O T E

TEST RUN operation ignores the temperature limitation and ambient temperature during heating operation to have a continuous op-
eration, but the protections are alive. Therefore, the protection may activate when the heating TEST RUN operation is performed in
high ambient temperature.
TEST RUN operation time can be modifyed / increased depressing the time switch in the Remote Control.
b.
If the unit do not start or the operation lamp on the remote control switch is flickered, some abnormalities exist. →Go to
41
_PMML0251A_r2.indb 41
OK" switches simultaneously
05
"


Wrong Portions
PMML0251A rev.2 - 02/2013
Operation lamp
")

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 
Counting
number of
05
connected
units

1, 2 , and 3.

06/02/2013 9:05:15