En-9
B Detail of knockout position (bottom)Fig.
Knockout hole
(Unit: mm)
C Detail of knockout position (front)Fig.
75
95
10
100
43
73
199
125
Knockout
hole
(Unit: mm)
Removing the pinch pipe5. 3. 2.
WARNING
Remove the pinch pipe only when the internal gas is completely drained as shown
on the below instructions.
If gas still remains inside, the piping may crack if you melt the brazing fi ller metal of
the junction area with a burner.
Before connecting the piping, remove the pinch pipe in accordance with the following
instructions:
Verify that the liquid side and gas side 3-way valves are closed. 1)
3-way valve
Pinch pipe
Cut the end of the liquid side and gas side pinch pipe and vent the gas inside the 2)
pinch pipe.
End of pinch pipe
After all the gas is vented, melt the brazing fi ller metal on connecting part using a 3)
torch and remove the pinch pipe.
Pipe connection5. 3. 3.
CAUTION
Seal the pipe route hole with putty (fi eld supply) such that there are no gaps.
Small insects or animals that are trapped in the outdoor unit may cause a short circuit
in the electrical component box.
To prevent pipe damage; do not make sharp bends.
Bend the pipe at a radius of 70mm or greater.
Do not bent pipe many times at same part to prevent break.
After completing all the pipe connection by brazing, perform the indoor unit pipe con-
nection with a fl are joint.
When removing the pinch pipe or brazing the joint pipe, carry out the work while
cooling down the 3-way valve suffi ciently.
Braze the joint pipe onto the 3-way valves at the liquid and gas side.•
Install the joint pipe appropriately so that it can be connected easily with the main
pipe.
Braze the joint pipe at the liquid and gas side with the main pipe.•
* Be sure to supply nitrogen when brazing.
AFig.
Liquid pipe
(Field supply)
Joint pipe
(Accessory)
To indo o r u n it
Knockout
hole
Gas pipe (Field
supply)
Joint pipe
(Field supply)
BFig.
Joint pipe
(Field supply)
Joint pipe
(Accessory)
Knockout
hole
Multiple connections5. 4.
CAUTION
When connecting multiple (maximum 3) units, be sure to install the unit with the •
largest capacity nearest to the indoor unit.
For example) AJ
126LALH (Outdoor Unit1) + AJ
126LALH (Outdoor Unit2) +
AJ
A90LALH (Outdoor Unit3)
When connecting multiple units, set the unit with the largest capacity as the master •
unit, and the rest as the slave units.
(Refer to 7. Field Setting)
When connecting multiple units, use the optional outdoor unit branch kit.•
9378945104-01_IM.indb Sec1:99378945104-01_IM.indb Sec1:9 2013-3-12 14:08:212013-3-12 14:08:21
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