Dip Switch Setting - Hitachi UTOPIA IVX PREMIUM Series Installations- Und Betriebshandbuch

Test running
Operation
 Setting of Operation Mode:
Cooling: Set DSW1-2 OFF.
Heating: Set DSW1-2 ON.
Test Run
 Starting Test Run:
Set DSW1-1 ON and the operation is
started after a few ~20 seconds.
Cooling
 Setting:
Compressor Manual OFF:
Set DSW1-4 ON.
Manual OFF of
Compressor
Compressor ON:
Set DSW1-4 OFF.
 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
Manual Defrost
after starting heating operation
 Manual Defrost Operation Finishes
Defrost operation is automatically ended
and the heating operation is started.
43
_PMML0251A_r2.indb 43

Dip Switch Setting

 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.
•
•
Heating
 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.
 Defrost operation is available re-
gardless 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
PMML0251A rev.2 - 02/2013
Operation
N O T E
TEST RUN operation time can be
increased depressing the time
switch in the Remote Control.
If is setting DSW1-3 ON, cool-
ing/heating intermediate season
mode is activaded.
G) or Thermo-OFF.
2
Remarks
•
Take care that the indoor units start op-
eration in accord with the test run opera-
tion of the outdoor unit.
•
The test run is started from the outdoor
unit and stopped from the remote con-
trol switch, the test run function of the
remote control switch is cancelled. How-
ever, 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 opera-
tion 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 fre-
quently.
•
Do not repeat defrost operation frequent-
ly.
06/02/2013 9:05:16