Outdoor unit
1.Installation of Outdoor Unit
3.Connection
4.Attaching Drain-Elbow
2.Connection of pipes
Install according to
To bend a pipe, give the roundness as large as possible not to crush the pipe ,and the bending radius
should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
The connection pipe is specialized for R410A.
The max vertical distance between the indoor unit and the outdoor unit is 5 m.
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
The standard pipe length is 5m. If it is over 5m, the function of the unit will be affected. If the pipe has
to be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerant
must be conducted by professional air conditioner engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge
additional refrigerant.
Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully into
terminal block, then tighten the screws.
If wiring is not correct, proper operation can not be carried out and controller may be damaged.
If the drain-elbow is used, please attach it as
figure. (Note: Only for heat pump unit.)
Forced fastening without careful centering
may damage the threads and cause a
leakage of gas.
Pipe Diameter ( )
Liquid side 6.35mm(1/4")
Gas side 9.52mm(3/8")
Fastening torque
Drawing for the installation of indoor and outdoor units
1.Remove the four screws of change-for-fresh-air box from the back cover.
2.Use six screws to fix the change new wind box onto the designated position on the outdoor unit.
3.Remove two screws of the pipe junction of the change new wind box, then insert the flared departure of
the change for fresh air tube into the pipe junction and then fix with the screws.
4.Use four screws to fix the change-for-fresh-air box onto the back cover, as illustrated:
Fresh air box
Fresh air
box
Fresh air tube
Fresh air tube
Fresh air tube
Screw
hole
Dust
filtration
mesh
Screw
Screw
Joint of tube
Flared departure
5.Installation instruction on the outdoor part of the fresh air device
back
cover
Note:After wiring, the connecting terminals of outdoor unit and change-fresh-air as well as the wiring sheath should be
placed in the change-for-fresh-air box against the rain.
Insert the cable according to terminal number in the same manner as the indoor unit.
Fix the cable with a clamp.
Connecting terminal
Fresh air signal wire
(with guard ring)
Change-for-fresh-air box
18N.m
40N.m
Half union
Flare nut
Spanner
Torque wrench
6
Gas side 12.7mm(1/2")
55N.m
