Service Manual
Part 
Ⅱ
: Installation and Maintenance 
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  indoor unit  and outdoor  unit, a  suf-
cient xing bolt must be installed; make sure the installation 
support is rm.
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 n-
ishing installation.
Electrical Safety Precautions:
7. Notes for Installation and Maintenance
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 installation and maintenance shall be performed by 
distributor or qualied person.
●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.
1.  Cut  off  the  power  supply  of  air  conditioner  before 
checking and maintenance.
2.  The  air  condition  must  apply  specialized  circuit  and 
prohibit 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 can’t be used for other purposes.
6. Must apply protective accessories such as protective 
boards, 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. The power cord and power connection wires can’t be 
pressed by hard objects.
9. If power cord or connection wire is broken, it must be 
replaced by a qualied person.
1. Avoid contact between refrigerant and re as it generates 
poisonous  gas;  Prohibit  prolong  the  connection  pipe  by 
welding.
2. Apply specied  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  n o  refrig e rant  ga s  is  lea k ing  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.
Warnings
Refrigerant Safety Precautions:
Improper installation may lead to re hazard, explosion, 
electric shock or injury.
Installation Safety Precautions:
10. If the power cord or connection wire  is  not long enough, 
please  get  the  specialized  power  cord  or  connection  wire 
from the manufacture or distributor. Prohibit prolong the wire 
by yourself.
11.  For  the  air  conditioner  without  plug,  an  air  switch  must 
be  installed  in  the  circuit.  The  air  switch  should  be  all-pole 
parting and the contact parting distance should be more than 
3mm.
12. Make sure all wires and pipes are connected properly and 
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes, 
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specication 
if  it  is  burnt  down;  don’t  replace  it  with  a  cooper  wire  or 
conducting wire.
15.  If  the  unit  is  to  be  installed  in  a humid  place,  the  circuit 
breaker must be installed.