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13
Outdoor Unit Alignment
Taking three-module combination of outdoor unit as an example.
Align the outdoor unit from large capacity as A>B>C, and outdoor Unit "A" should be located at the indoor
unit side.
Piping Work between Outdoor Units
(1) Piping Length between Manifold Pipe (at outdoor unit side) and outdoor unit should be LA<LB<LC<32.8ft.(10m).
LA LB LC
Unit
A
Unit
B
Unit
C
Outdoor
Outdoor
Outdoor
Outdoor
Unit
C
Outdoor
Unit
B
Outdoor
Unit
A
A
B
C
Oil Trap
Min. 7-7/8(200)
11-11/13
(300)
Max.
5.3 Caution about Outdoor Unit Installation
(2)
Taking three-module combination of outdoor unit as an example.
Place the Manifold Pipe lower than the outdoor unit piping connection.
In case that the Manifold Pipe is placed higher than the outdoor unit piping connection, keep a distance of
11-13/16in.(300mm)(max.) between the Manifold Pipe and the bottom of the outdoor unit. Also, provide the oil trap
(Min.7-7/8in.(200mm)) between the Manifold Pipe and the bottom of the outdoor unit.
(3) In case the piping length between the outdoor is 6.6ft.(2m) or more, the oil trap should be provided for the gas pipe so
that the accumulation of the refrigerant may not occur.
Indoor Unit Side
Indoor Unit Side
Indoor Unit Side
Indoor Unit Side
Outdoor
Unit
Outdoor
Unit
Outdoor
Unit
A
Outdoor
Unit
B
Outdoor
Unit
C
Outdoor
Unit
Keep the direct distance
of 19-11/16(500)mm or
more after the Manifold
Pipe
Max. lift difference
between outdoor
units is no more than
3-15/16in.(100mm)
Manifold Pipe
Indoor Unit Side
Oil Trap
Oil Trap
Max.
Max.
Indoor Unit Side
Indoor Unit Side
Indoor Unit Side
Indoor Unit Side
Less than 6.6ft.(2m)
Less than 6.6ft.(2m)
* Less than 6.6ft.(2m)
*6.6ft.(2m) or longer
Oil Trap
Oil Trap
Less than 6.6ft.(2m)
6.6ft.(2m)or longer
Less than 6.6ft.(2m)
6.6ft.(2m) or longer
Outdoor Unit Capacity: A≥B≥C
Outdoor Unit Capacity: A≥B≥C Outdoor Unit Capacity: A≥B≥C
unit: in.(mm)
nit:in.(mm)
Min. 7-7/8(200)
Min. 7-7/8(200)
11-11/13
(300)
11-11/13
(300)
Min. 7-7/8(200)
Min. 7-7/8(
200)
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