Heat insulation
material
Drain hose
Piping
Indoor/outdoor
electric cable
signal wire
Change-for-fresh-air tube
Indoor/outdoor electric cord and drain hose must
be bound with refrigerant piping by protecting
tape
9. Indoor unit communication addresses setting
Lid for right piping
Lid for under piping
Lid for left piping
Fix with adhesive tape
8. Other direction piping
Cut away, with a nipper, the lid for piping according to the piping direction and then bend the
pipe according to the position of wall hole. When bending, be careful not to crash pipes.
Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat
insulation of connecting part specially.
Hang surely the unit body onto the upper notches of the mounting plate. Move the body from side to
verify its secure fixing.
In order to fix the body onto the mounting plate, hold up the body aslant from the underside and then
put it down perpendicularly.
CAUTION! FAIL TO DO THIS, THE UNIT WILL NOT WORK.
4. Drawing of pipe Rear piping
Draw pipes and the drain hose, then fasten them with the adhesive tape. Left Left-rear, piping.
In case of left side piping, cut away, with a nipper, the lid for left piping.
In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for
left-rear piping which is marked on heat insulation materials.
(1) Insert the drain hose into the dent of heat insulation materials of indoor unit.
(2) Insert the indoor/outdoor electric cord from backside of indoorunit, and pull it out on the front side,
then connect them.
(3) Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape.
Indoor side
Outdoor side
Wall hole
Thickness
of wall
70mm
(Section of wall hole) Piping hole pipe
1.There are two methods to set the communication address
A. Use the remote controller(default status in first installation).
B. Use dip switches on the indoor unit PCB.
2. Address setting procedure when using the remote controller.
A. Set the addresses only after the successful installation of the refrigerant pipes and connecting cables,
and open all the stop valves;
B. Please confirm that the indoor units and the outdoor unit in the same system use the same power
source;
C. Power on the units, but put all the indoor units in the status of STANDBY;
D. Please note that the address must be set as following:
Indoor unit that connect to valve A, the address must be 1;
Indoor unit that connect to valve B, the address must be 2;
Indoor unit that connect to valve C, the address must be 3;
E. Example: set unit A to address 1.
Commercial Air Conditioner
Model: AU18
/22
2XFERA
AS072/092/122XVERA
-33-
