Ras-(2-3)Hvrc3 Test Run Procedure - Hitachi UTOPIA R32 Series Installation And Operation Manual

13.1 RAS-(2-3)HVRC3 test run procedure

The procedure of test run from outdoor unit side is indicated below. Setting of this DSW is available
with the power source ON.
!
CAUTION
• 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 pins of DSW1 OFF when the test run operation is completed.
Operation
 Setting of operation mode:
Cooling: Set DSW301-1 ON.
Heating: Set DSW301-2 ON.
Test run
 Starting test run:
Set DSW301-1 = ON and the operation is
started after a few ~20 seconds.
Cooling
PMEN0654 rev.0 - 12/2023
DSW Setting
 The indoor unit automatically
 The ON/OFF operation can be
 Continuous operation during

•
•
Heating
Operation
start to operate when the test
run of the outdoor unit is set.
performed from the remote
control switch or DSW301-1 of
the outdoor unit.
2 hours is performed without
Thermo-OFF.
NOTE
TEST RUN operation time can be
increased depressing the time
switch in the Remote Control.
If is setting DSW301-3 = ON,
cooling/heating short test run
procedure mode is activated.
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.
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