Shaping The Refrigeration Pipes; Connecting The Flared Connections - Fujitsu AOYA18LALL Installation And Operating Manual

Heat pump, Split, single service

Shaping the refrigeration pipes

2.6.4
The refrigeration pipes must be shaped only on a
bending machine or with a bending spring in order to
avoid any risk of crushing or breaking them.
F
Warning
•
Remove the insulation material locally to bend the
pipes.
•
Do not bend the copper to any angle over 90°.
•
Never bend pipes more than 3 times in the same
position otherwise traces of fracturing may appear
(from strain-hardening the metal).
Gas
Model 050
Model 065
Fluid
Gas
Model 080
Fluid
Model 095 Gas
Model 128
Fluid
Model 155
Liquid valve
Flare nut
Gas valve
Flare nut
Outside
unit
Installation and operating manual "1350-EN"
Diameter
Outside
of refrigeration
unit connections
connections
1/2" (D1) 1/2"
¼" (D2) ¼"
5/8" (D1) 5/8"
¼" (D2) ¼"
5/8" (D1) 5/8"
3/8" (D2) 3/8"
Liquid refrigeration connexion
Diameter D2
"Gas" refrigeration connexion
D1 Diameter
Figure 19 - Connecting the flared connections

Connecting the flared connections

2.6.5
F
The small pipe must always be connected
before the large one.
F
Take particular care positioning the tube
opposite its connector so as not to risk
damaging the threads. A carefully aligned
connector can be fitted easily by hand
without much force being required.
F
The refrigeration circuit is very sensitive to
dust and humidity: check that the area
around the connection is clean and dry
before removing the plugs protecting the
refrigeration connectors.
Male-female
adapter
(reduction)
(R1) 1/2"-5/8"
(R2) ¼"-3/8"
None
(R2) ¼"-3/8"
None
None
Adapter R1,
depending
on the model
Flare nut
Hydraulic module
connections
5/8"
3/8"
5/8"
3/8"
5/8"
3/8"
Adapter R2,
depending
on the model
Flare nut
Hydraulic
module
19