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7. Notes for Installation and Maintenance
Service Manual
Safety Precautions: Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation and
maintenance.
Please follow the instructions below.
●The installation or maintenance must accord with the
instructions.
●Comply with all national electrical codes and local electrical
codes.
●Pay attention to the warnings and cautions in this manual.
●All electric work must be performed by a licensed technician
according to local regulations and the instructions given in
this manual.
●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.
Warnings
Electrical Safety Precautions:
1. Cut off the power supply of air conditioner before checking
and maintenance.
2. The air condition must apply specialized circuit and pro-
hibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable location
and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly during
installation and maintenance.
5. Have the unit adequately grounded. The grounding wire
cant be used for other purposes.
6. Must apply protective accessories such as cable-cross
loop and wire clip.
7. The live wire,neutral wire and grounding wire of power
supply must be corresponding to the live wire, neutral wire
and grounding wire of the air conditioner.
8. If power cord is broken, please get the specialized power
cord from the manufacture or distributor.
9. If the power cord is not long enough, please get the spe-
cialized power cord from the manufacture or
distributor. Prohibit prolong the wire by yourself.
10. Make sure all wires and pipes are connected
properly.
Installation and Maintenance
11. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
12. Replace the fuse with a new one of the same
specification if it is burnt down; dont replace it with a cooper
wire or conducting wire.
13. If the unit is to be installed in a humid place, the
circuit breaker must be installed.
Installation Safety Precautions:
1. Select the installation location according to the require-
ment of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not be
carried by only one person if it is more than 20kg.
3. When installing the unit, a suffi-cient fixing bolt must be
installed; make sure the installation support is firm.
4. Ware safety belt if the height of working is above 2m.
5. Use equipped components or appointed components dur-
ing installation.
6. Make sure no foreign objects are left in the unit after fin-
ishing installation.
Refrigerant Safety Precautions:
When refrigerant leaks or requires discharge during
installation, maintenance, or disassembly, it should be
handled by certified professionals or otherwise in compliance
with local laws and regulations.
1. Avoid contact between refrigerant and fire as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.
2. Apply specified refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when
installation is completed.
4. If there is refrigerant leakage, please take sufficient
measure to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Improper installation may lead to fire hazard,
explosion, electric shock or injury.
13
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