Fujitsu Ceiling Type Design & Technical Manual

• Twin type
H1
H2
L1L3
L2
NOTE: Be certain to install indoor units in
the same room because the combi-
nations are for simultaneous opera-
tion. The lengths after branching
should be equal if possible.
Model name (Outdoor unit) AOYG72LRLA AOYG90LRLA
Model name (Indoor unit) 36 kBtu/h × 2 45 kBtu/h × 2
Main pipe diameter
(L1) (Standard)
Liquid
mm (in)
12.70 (1/2)
Gas 25.40 (1)
Branch pipe diameter
(L2, L3) (Standard)
Liquid
mm (in)
9.52 (3/8)
Gas 15.88 (5/8)
Maximum piping length
(L1 + L2 + L3)
m 100*
Minimum piping length
(L1 + L2 + L3)
m 5
Maximum branch piping length
(L2, L3)
m 20
Maximum difference between branch
lengths (L2 to L3)
m 8
Maximum height difference (H1) (Indoor
unit to outdoor unit)
m 30
Maximum height difference (H2) (Indoor
unit to outdoor unit)
m 0.5
*: For the standard pipe diameter
- 181 -
2-2. Piping limitation 2. Pipe design
SYSTEM DESIGN SYSTEM DESIGN

Fujitsu Ceiling Type Specifications

General

Brand	Fujitsu
Model	Ceiling Type
Category	Air Conditioner
Language	English