54
Refrigerant pipe installation
CAUTION
< H/P >
Temperature
sensor
Wet towel
Service port Service valve
Temperature
sensor
Wet towel
Service port
Service valve
< H/R >
Caution for welding the pipe to an outdoor unit
࡛Ǯ˵ʪ͝иʪ̷ʒ̈͝˝ϩ˵ʪΧ̈Χʪࡥϩ˵ʪЇ̈͝ϩ͔ɇц˝ʪϩʒɇ͔ɇ˝ʪʒɵцϩ˵ʪ˵ʪɇϩɇ͝ʒѤɇ͔ʪ˙θͱ͔иʪ̷ʒ̈͝˝Ƹϑʪɇ
Ѥɇ͔ʪΧθͱͱѣ͝˝ʀ̷ͱϩ˵ϩͱΧθͱϩʪʀϩϩ˵ʪЇ̈͝ϩ˙θͱ͔ɇиʪ̷ʒ̈͝˝ѣθʪͱθѤɇ͔ʪƊʪ͝ϑͱθ˙ͱθʒʪϩʪʀϩ̈͝˝ͱЇϩϑ̈ʒʪ
temperature is located on the left side of the welding part so be extra careful not to damage the
sensor when welding.
࡛Ɵ˵ʪĮࣛθ̈͝˝ɇ͝ʒƟʪѤͱ͝Χɇʀ̧̈͝˝̈͝ϑ̈ʒʪϑʪθӬʀʪЭɇ̷Эʪ͔ɇц˝ʪϩʒɇ͔ɇ˝ʪʒɵцϩ˵ʪ˵ʪɇϩ˙θͱ͔иʪ̷ʒ̈͝˝
Wrap the bottom side of the service valve with a wet cloth and weld it as shown in the illustration.
Also, water dripping from the wet cloth may interrupt the welding. Make sure the water does not
drip from the wet cloth.
࡛
Make sure that connected pipes does not interrupt each other or make contact with the product.
(Vibration may cause damage to the pipes.)
࡛
When removing the sealed pipe on the bottom side of the service valve, cut it with a pipe cutter
ѣθϑϩɇ͝ʒϩ˵ʪ͝ϑϩɇθϩϩ˵ʪиʪ̷ʒ̈͝˝Ǯ˵ʪ͝ϩ˵ʪϑʪɇ̷ʪʒΧ̈Χʪ̈ϑиʪ̷ʒʪʒӥϩ˵ͱЇϩʀЇϩϩ̈͝˝ࡥцͱЇ͔ɇц˝ʪϩ
injured by the refrigerant within the pipe.
3. Pipe installation between the outdoor units
ॷ
You will need branch joints, which is an optional accessory, for connecting in between outdoor units in
order to combine outdoor units in module.
࢜
For optimal distribution of the refrigerant, you must use Y-joint as branch joint for connecting outdoor
Ї̈͝ϩϑ࣑Uͱ͝ͱϩЇϑʪƟ̟ࣛͱ̈͝ϩ࣒
ॷ
When you install the outdoor units in module, there is no restriction of installation order among outdoor
units.
ॷ
Height of the connection pipe should be same or lower than the ones connected to the outdoor units.
ॷ A˵ʪʀ̧ϩ˵ʪʀ˵ɇ͝˝ʪϑ̈͝ʀͱ͔Χɇθ̈ϑͱ͝ӥϩ˵ϩ˵ʪUǤđࠪࡥࠫɇ͝ʒࠬ
Caution
Correct installation
Incorrect installation
Refrigerant pipes
should be connected
at the same or lower
level than the ones
connected to the
outdoor unit.
