58
Installation and Maintenance
Service Manual
Big handle
(1) Take  sufficient protective  measures  when  installing  the 
outdoor unit.
(2) Make sure the support can withstand at least four times the 
unit weight.
(3) The outdoor unit should be installed at least 3cm above the 
oor in order to install drain joint.(As show in Fig.18)
(4)  For  the  unit  with  cooling  capacity  of  2300W~5000W,  6 
expansion screws are needed; for the unit with cooling capacity 
of 6000W~8000W,  8  expansion  screws  are  needed;  for the 
unit with  cooling capacity of  10000W~16000W, 10 expansion 
screws are needed.
(1) After tightening the screw, pull the power cord  slightly  to 
check if it is rm.
(2) Never cut the power connection wire to prolong or shorten 
the distance.
(1) The through-wall height  of  drain hose shouldnt be  higher 
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) Slant the  drain  hose  slightly  downwards. The  drain  hose 
cant be curved, raised and uctuant, etc.(As show in Fig.26)
Note:
Note:
Note:
t
8.6 Installation of Outdoor Unit
1. Fix the Support of Outdoor Unit(Select it according to 
the actual installation situation)
(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with 
expansion screws.
5. Connect Outdoor Electric Wire
(1) Remove  the  wire clip; connect  the  power connection wire 
and power cord to the wiring terminal according to the color; x 
them with screws.(As show in Fig.23)
6. Neaten the Pipes
(1) The pipes should be placed along the wall, bent reasonably 
and hidden possibly. Min. semidiameter of  bending the  pipe is 
10cm.
(2) If the outdoor unit is higher than the wall hole, you must set 
a U-shaped curve in  the pipe before pipe goes into the  room, 
in order to prevent rain from getting into the room.(As show in 
Fig.24)
(2) Fix the power connection wire with wire clip.
2. Install Drain Joint(Only for cooling and heating unit)
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)
3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)
4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the  right handle of outdoor unit and 
then remove the handle.(As show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the 
bellmouth of pipe.(As show in Fig.22)
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
Hex nut diameter(mm) Tightening torque(N
.
m)
Φ6 15~20
Φ9.52 30~40
Φ12 45~55
Φ16 60~65
Φ19 70~75
Refer to the following table for wrench moment of force
:
Fig.18 Fig.19
Fig.20
Fig.21
Fig.22
Fig.23
Fig.24
Fig.25
U-shaped curve