Hitachi RAS-2HVNP Installations- Und Betriebshandbuch Seite 37

18
1 Test running
18.1 TEST RUN PROCEDURE BY REMOTE CONTROL SWITCH (PC-ART EXAMPLE)
Turn ON the power source of the units

Procedure for TEST RUN mode of remote control switch.
Depress the MODE and the
conds.
If TEST RUN and the counting number of the connected units to
a.
the remote control switch (for example

remote control switch, the connection of remote control cable is
correct. → Go to

If no indication appears or the number of the units indicated is
b.
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 is
No indication
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
Counting number
outdoor unit is not connected.
of connected units
is incorrect
The connection of control cables between each
indoor units are incorrect. (When one remote con-
trol switch controls multiple units).
Back to  after checking
Select TEST RUNNING MODE by depressing MODE Switch (COOL OR HEAT)

Depress RUN/STOP switch.
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

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 tempera-
ture.
TEST RUN operation time can be modifyed / increased depressing the time switch in the Remote Control.
If the unit do not start or the operation lamp on the remote control switch is flickered, some abnormalities exist. →Go to
37
PMML0248A
OK switches together for more than 3 se-
 ) are indicated on the
Wrong portions
Operation lamp

Inspection points after the power source OFF
Connecting points of remote control cable, terminal board of re-
1
mote control switch and indoor unit.
Contact of terminals of remote control cable.
2
Connection order of each terminal board.
3
Screw fastening of each terminal boards.
4
Dip switch setting on printed circuit board.
5
Connection on the PCB.
6
This is the same as item 
7
Counting
number of
connected
units

1, 2, and 3.
