Test Run Procedure From The Outdoor Unit Side - Hitachi RAS-5HVRNM1E Service Manual

7 Test Run

7.4 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
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.
1. Setting operation mode
(a) Cooling:
Set DSW1-1 ON
(b) Heating
SET DSW1-1 and 2 ON
(c) Cooling
season:
Test run
Set DSW1-1 and 3 ON
(d) Heating
season:
Set DSW1-1, 2 and 3 ON
2. Forced stoppage of compressor:
Manual OFF of
compressor
Set DSW1-1 ON
180
SMGB0060 rev. 1- 12/2010
DSW1
1 Cooling: Pin 1 ON
2 Heating: Pin 1, 2 ON
3 Cooling intermediate season: Pin 1, 3 ON
4 Heating intermediate season: Pin 1, 2, 3 ON
5 Manual compressor OFF: Pin 4 ONe
Dip switch seting
intermediate
intermediate
Operation
•
•
• The indoor unit automatically
starts to operate when the
test run of the outdoor unit is
set.
• You can perform the ON/OFF •
operation from the remote
control switch or the DSW1 of
the outdoor unit.
• Continuous operation during
2 hours is performed without
the Thermo-OFF condition.
•
• When DSW1-4 is ON during
the compressor operation,
the compressor stops
operating immediately and
the indoor unit is under the •
Thermo-OFF condition.
• When DSW1-4 is OFF, the
compressor starts to operate
after the cancellation of the 3-
minute guard.
Remarks
Make sure that the indoor
units start to operate in
accord with the test run of the
outdoor unit.
If you start the test run from
the outdoor unit and you stop
the test run 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.
If the more than one indoor
unit is connected with one
remote control switch, all the
units start the test run at the
same time. Therefore, turn
OFF the power source so that
the indoor units do not
perform the test run. If this is
the case, the TEST RUN
indication of the remote
control switch may flicker.
This is not abnormal.
The setting of DSW1 is not
required for the test run from
the remote control switch.
Do not turn ON and OFF the
compressor frequently