• Double twin type
Model name (Outdoor unit)
AOYG72LRLA AOYG90LRLA
Size down Standard Size down Standard
Main pipe diameter (First
separation) (L1)
Liquid
mm (in)
12.70 (1/2)
Gas 22.22 (7/8)* 25.40 (1) 22.22 (7/8)* 25.40 (1)
Branch pipe diameter (First
separation) (L2, L3)
Liquid
mm (in)
9.52 (3/8)
Gas 15.88 (5/8)
Branch pipe diameter
(Second separation) (L4, L5,
L6, L7)
Liquid
mm (in)
6.35 (1/4) 9.52 (3/8)
Gas 12.70 (1/2) 15.88 (5/8)
Maximum piping length (L1 + L2 + L3 +
L4 + L5 + L6 + L7)
m 100
Pre-charge length m 30
*: Use the reducer attached with the product.
¢ Branch pipes (Optional parts)
Model name
(Outdoor unit)
Connection type
Number of
indoor units
Kit name
First branch Second branch
AOYG72LRLA
Twin 2 UTP-SX272A —
Triple 3 UTP-SX372A —
Double twin 4 UTP-SX272A UTP-SX236A
AOYG90LRLA
Twin 2 UTP-SX272A —
Triple 3 UTP-SX372A —
Double twin 4 UTP-SX272A UTP-SX254A
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2-3. Pipe size 2. Pipe design
SYSTEM
DESIGN
SYSTEM
DESIGN
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