17
A
Pipe installation with indoor units
Follow different orders depending on the capacity of indoor units.
<AJ009RBADEC, AJ012RBADEC>
f
Install pipes between indoor and outdoor units orderly as[A
→
B
→
C
→
D].
<AJ018RBADEC, AJ024RBADEC>
f
Install pipes between indoor and outdoor units orderly as[B
→
C
→
D].
❋
If the valve diameter of indoor and outdoor unit are different,please use Tube-connector.
A unit
B unit
C unit
D unit
OUTDOOR UNIT
Pump down operation
◆
After installing the product, be sure to perform leak tests on the piping
connections. After pumping down refrigerant to inspect or relocate the outdoor
unit, be sure to stop the compressor and then remove the connected pipes.
-
Do not operate the compressor while a valve is open due to refrigerant leakage
from a pipe or an unconnected or incorrectly connected pipe. Failure to do so
may cause air to flow into the compressor and too a high pressure to develop
inside the refrigerant circuit, leading to an explosion or product malfunction.
WARNING
Pump-down is an operation intended to collect all the system refrigerant in the outdoor unit.
This operation must be carried out before disconnecting the refrigerant pipe in order to
avoid refrigerant loss to the atmosphere.
1.
Turn the system on in cooling with fan operating at high velocity and then let the
compressor run for more than 5 minutes. (Compressor will immediately start, pro-
vided 3 minutes have elapsed since the last stop.)
2.
Release the valve caps on High and Low pressure side.
3.
Use L-wrench to close the valve on the high pressure side.
4.
After approximately 2 minute, close the valve on the low pressure side.
5.
Stop operation of the air conditioner by pressing the (Power) button on the indoor
unit or remote control.
6.
Disconnect the pipes.
Pumping down refrigerant
※
The designs and shape are subject
to change according to the model.
Summary of Contents for AJ038RCJ4EC
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