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Fig. A
Joint pipe
(Locally
purchased)
Liquid pipe
(Locally purchased)
Fig. B
joint pipe
(Locally purchased)
5.5. Multiple connections
• When connecting multiple (maximum 3) units, be sure to install the unit with the larg-
est capacity nearest to the indoor unit.
For example: AJ*126LALDH (Outdoor Unit1) + AJ*126LALDH (Outdoor Unit2) +
AJ*090LALDH (Outdoor Unit3)
• When connecting multiple units, set the unit with the largest capacity as the primary unit,
and the rest as the subordinate units. (Refer to "7. FIELD SETTING")
• When connecting multiple units, use the optional outdoor unit branch kit.
Outdoor unit branch kit
(Optional)
To indoor unit
(To main pipe)
To outdoor unit
To outdoor unit
Joint pipe
(Accessory)
Knockout hole
Gas pipe
(Locally purchased)
To indoor unit
Joint pipe
(Accessory)
Knockout hole
CAUTION
Outdoor Capacity
2 Units : Unit 1 ≥ Unit 2
3 Units : Unit 1 ≥ Unit 2 ≥ Unit 3
Joint pipe
(Accessory)
Liquid pipe
(Locally purchased)
Gas pipe
(Locally purchased)
Branch kit restriction when install
Be sure following restriction.
(1) Installation angle
Install the outdoor unit branch kit horizontally level, within 0° to -10°, so that the refrigerant
separates evenly.
To indoor unit
PROHIBITED
GOOD:
0° to -10°
PROHIBITED
Do not install
the outdoor
unit branch kit
vertically.
PROHIBITED
(2) Straight pipe length
Leave the distance 0.5 m or more for straight part to outdoor unit branch kit.
To indoor unit
To outdoor unit
(To main pipe)
0.5 m or more
To indoor unit (To main pipe)
0.5 m or more
(3) About the connecting curvature of field pipe and branch kit:
The field pipe should
be connected to the
branch kit so that the
curved angle on each
side is 3 degree or
less.
(4) For details, refer to the Installation Instruction Sheet of the outdoor unit branch kit.
Examples of multiple unit installation
(Example 1)
(Primary)
(Subordinate 1)
(Subordinate 2)
(Example 2)
(Primary)
(Subordinate 1)
(Subordinate 2)
To outdoor unit
To outdoor unit or next branch kit
PROHIBITED
GOOD:
0° to -10°
PROHIBITED
PROHIBITED
PROHIBITED
To outdoor unit
To outdoor
unit
To outdoor unit
To outdoor
unit
*: Allowed value based on "A" (center
of field pipe) at 0.5 m from "B" (junction
of the branch kit).
0.5 m
(Primary)
(Example 3)
(Subordinate 1)
(Subordinate 2)
En-10
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