Hitachi RCI Serie Manual De Instalación Y Funcionamiento página 48

TEST RUNNING
36
17.2. TEST RUN FROM OUTDOOR UNIT SIDE
The procedure of test run from outdoor unit side is
indicated below. Setting of this DIP switch is
available with the power source ON.
Setting of Dip Switch (Before Shipment)
DSW1
Switch for Setting of Service Operation and Function
1. Test Run
2. COOL/HEAT Setting
ON
(ON: Heating Operation)
1 2 3 4
3. OFF (Fixed)
4. Manual Compressor OFF
Dip Switch Setting
Test Run Setting of Operation Mode
Cooling: Set DSW1-2 OFF.
ON
1 2 3 4
Heating: Set DSW1-2 ON.
ON
1 2 3 4
Starting Test Run
Set DSW1-1 ON and the operation is
started after a few ~20 seconds.
When heating operation, leave
DSW1-2 at ON
ON
1 2 3 4
Manual OFF Setting
of
-Compressor Manual OFF:
Compressor
Set DSW1-4 ON.
ON
1 2 3 4
-Compressor ON:
Set DSW1-4 OFF.
ON
1 2 3 4
Manual
Manual Defrost Operation Starts
Defrost Press PSW1 for more than 3 seconds
during heating operation, the defrost
operation is started after 2 minutes.This
function is not available within 5
minutes after starting heating operation
Manual Defrost Operation Finishes
Defrost operation is automatically
ended and the heating operation is
started.
WARNING:
Do not touch any other electrical parts when operating
switches on the PCB.
Do not attach or detach service cover when the power
source for the outdoor unit is ON and the outdoor unit
is operated.
Turn all DIP switches of DSW1 OFF when the test run
operation is completed.
Operation
The indoor unit automatically
start to operate when the test run
of the outdoor unit is set.
The ON/OFF operation can be
performed from the remote
control switch or DSW1-1 of the
outdoor unit.
Continuous operation during 2
hours is performed without
Thermo-OFF.
NOTE:
TEST RUN operation time can
be increased depressing the
time switch in the Remote
Control.
When DSW1-4 is ON during
compressor operation, the
compressor stops to operate
immediately and the indoor unit
is under the condition of Thermo-
OFF.
When DSW1-4 is OFF, the
compressor starts to operate
after the cancellation of 3-
minutes guard.
Defrost operation is available
regardless of frosting condition
and total time of heating
operation.
Defrost operation in not
performed when the
temperature of outdoor heat
exchanger is higher than 10°C,
high pressure is higher than
2
3.3MPa (33kgf/cm G) or
Thermo-OFF.
Remarks
Take care that the indoor units start
operation in accord with the test run
operation of the outdoor unit.
The test run is started from the
outdoor unit and stopped from the
remote control switch, the test run
function of the remote control switch
is cancelled. However, the test run
function of the outdoor unit is not
cancelled
In case that the plural indoor units
are connected with one remote
control switch, all the units start test
run operation at the same time,
therefore, turn the power source
OFF for the indoor units not to
operate test run. In this case, the
TEST RUN indication of the remote
control switch may flicker, and this is
not abnormal.
The setting of DSW1 is not required
for the test run from the remote
control switch.
Do not repeat compressor ON/OFF
frequently.
Do not repeat defrost operation
frequently.