Hitachi RAS-3HVRNME-AF, Инструкция по установке и эксплуатации, Страница: 36 / 40

PMML0205A rev.4 - 11/2012
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TEST RUN
13.3. 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.

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.
Setting of Dip Switch (Before Shipment)
DSW1
Switch for setting of Service Operation and Function
1. Test Run
2. COOL/HEAT
Setting (ON: Heat Operation)
3. OFF (Fixed)
4. Manual Compressor OFF
Operation Dip Switch Setting Operation Remarks
Test Run

Setting of Operation Mode:
Cooling: Set DSW1-4 OFF.
Heating: Set DSW1-2 ON.

Starting Test Run:
In cooling operation set DSW1-1
ON and the operation is started
after a few ~20 seconds.
When heating operation, leave
DSW1-2 at ON
↓
Test Run Heating:

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.
”
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.
Manual
OFF of
Compressor

Setting:
Compressor Manual OFF:
Set DSW1-4 ON.
Compressor ON:
Set DSW1-4 OFF.

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.
”
Do not repeat compressor ON/OFF
frequently.
Manual
Defrost

Manual Defrost Operation Starts
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.

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
3.3 MPa (33kgf/cm
2
G) or Thermo-
OFF.
”
Do not repeat defrost operation frequently.