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7.6 Rectifications after Test Run Is
Completed with Exceptions
The test run is considered complete when there is no
error code on the user interface or the outdoor unit
display. When an error code is displayed, rectify the
operation based on the description in the error code
table. Try to conduct the test run again to check that the
exception has been corrected.
INFORMATION
i
Refer to the installation manual of the indoor unit
for details on other error codes related to the
indoor unit.
7.7 Operating This Unit
Once the installation of this unit is completed, and the
test run of the outdoor and indoor units is done, you can
start to run the system.
The indoor unit user interface should be connected to
facilitate the operations of the indoor unit. Please refer to
the installation manual of the indoor unit for more details.
8 MAINTENANCE AND REPAIR
INFORMATION
i
Arrange for the installation personnel or service
agent to carry out one maintenance every year.
8.1 Overview
This chapter contains the following information:
Take electrical hazards preventive measures during
system maintenance and repair.
Recovery operation for refrigerant.
8.2 Safety Precautions for
Maintenance
NOTE
Before you carry out any maintenance or repair
work, touch the metal parts of the unit to
dissipate static electricity and protect the PCB.
8.2.1 Prevent electrical hazards
When maintaining and repairing the inverter:
1. Do not open the cover of the electrical component box
within 5 minutes after the power is switched off.
2. Verify that the power supply is switched off before you
use the measuring instrument to measure the voltage
between the main capacitor and the main terminal
ensure that the capacitor voltage in the main circuit is
less than 36 VDC. The position of main terminal has
been shown in the Wiring nameplate(The port of CN38
on the compressor drive board).
3. Before you come in any contact with the circuit board
or components (including the terminals), make sure that
static electricity in your own body is eliminated. You can
touch the sheet metal of the outdoor unit to achieve this.
If conditions permit, please wear anti-static bracelet.
4. During maintenance, pull out the plug connecting to
the power cord of the fan to prevent the fan from rotating
when it is windy outside. The strong winds will cause the
fan to rotate and generate electricity which can charge
the capacitor or terminals, leading to an electric shock.
At the same time, do take note of any mechanical
damage. The blades of a high speed rotating fan are
very dangerous and cannot be operated by one person
alone.
5. Once the maintenance is completed, remember to
reconnect the plug to the terminal; otherwise, a fault will
be reported for the main control board.
6. When the unit is power on, the fan of the unit with auto
snow-blowing function will run periodically, so make sure
the power supply is off before touching the unit.
Please refer to the wiring schematic on the back of the
box cover of the electrical component box for the
relevant details.
9 TECHNICAL DATA
9.1 Dimensions
Product dimension may slight differ for different
panel used, tolerance range ±30mm, the actual
size prevail to your purchasing.
Product picture on the page is for reference only.
8-14HP
1130
16-22HP
1250
51
NOTE
Unit: mm
614
278
Fig. 9.1
278
674
Fig. 9.2
V.1
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