Hitachi RAS-(4-12)HNP(1)(E) - Test Run Procedure from the Outdoor Unit Side

7 Test run
201
SMGB0087 rev.0 - 12/2013
7
7.5 Testrunprocedurefromtheoutdoorunitside
The test run procedure from the outdoor unit side is shown below.
You can set this DIP switch while the power source is ON.
Settingofdipswitch
DSW1
1 Test Run
2 COOL/HEAT
(Setting ON: Heat Operation)
3 COOL / HEAT intermediate season
4 Manual Compressor stop
 D A N G E R
• DonottouchanyotherelectricalcomponentswhileyouaresettingtheswitchesonthePCB.
• DonotattachordetachtheserviceaccesspanelwhenthepowersourcefortheoutdoorunitisONandthe
outdoorunitisoperating.
• SetalltheDIPswitchesofDSW1toOFFaftercompletingthetestrun.
Operation DipSwitchSetting Operation Remarks
Test run
 Setting of Operation Mode:
Cooling: Set DSW1-2 OFF.
Heating: Set DSW1-2 ON.
 Starting Test Run:
Set DSW1-1 ON and the operation
is started after a few ~20 seconds.
Cooling Heating
 The indoor unit automatically start to
operate when the test run of the outdoor
unit is set.
 The ON/OFF operation can be per-
formed from the remote control switch or
DSW1-1 of the outdoor unit.
 Continuous operation during 2 hours
is performed without Thermo-OFF.
 N O T E
• TESTRUNoperationtimecanbein-
creaseddepressingthetimeswitch
intheRemoteControl.
• If is setting DSW1-3 ON, cooling/
heating intermediate season mode
isactivaded.
• 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 outdo-
or unit and stopped from the remote
control switch, the test run function of
the remote control switch is cance-
lled. However, the test run function of
the outdoor unit is not cancelled
• In case that the plural indoor units
are connected with one remote con-
trol switch, all the units start test run
operation at the same time, therefo-
re, 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 ic-
ker, and this is not abnormal.
• The setting of DSW1 is not required
for the test run from the remote con-
trol 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 com-
pressor operation, the compressor stops
to operate immediately and the indoor
unit is under the condition of Thermo-
OFF.
 When DSW1-4 is OFF, the com-
pressor starts to operate after the can-
cellation of 3-minutes guard.
• Do not repeat compressor ON/OFF
frequently.