Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 562

 Pipe connection
CAUTION
• Seal the pipe route hole with putty (locally purchased) such that there are no gaps. Small in-
sects 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 in the pipe. Bend the pipe at a radius of
2-3/4 in (70 mm) 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 connection with
a flare joint.
• When removing the pinch pipe or brazing the joint pipe, carry out the work while cooling down
the 3-way valve sufficiently.
• Braze the joint pipe onto the 3-way valve at the liquid and gas side. Install the joint pipe appropri-
ately 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.
NOTE: Be sure to supply nitrogen when brazing.
Joint pipe C*²
(accessory)
Liquid pipe
(locally purchased)
NOTE: • *1: AOU120RLAVL only
• *2: AOU72RLAVL and AOU96RLAVL only
3-1. Piping to outdoor unit
Joint pipe A-L*¹
Joint pipe A*²
(accessory)
Gas pipe
(locally purchased)
- (06-40) -
Joint pipe B-L*¹
Joint pipe B*²
Joint pipe C*² (accessory)
(accessory)
Gas pipe
Liquid pipe
(locally purchased)
(locally purchased)
3. Piping connection