2.6.4
Shaping the refrigeration pipes
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).
2.6.5
Connecting the flared connections
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.
Installation and operating manual “1350-EN”
19
Heat pump, Split, single service
Liquid valve
Flare nut
Liquid refrigeration connexion
Diameter D2
“Gas” refrigeration connexion
D1 Diameter
Gas valve
Flare nut
Flare nut
Flare nut
Adapter R2,
depending
on the model
Adapter R1,
depending
on the model
Outside
unit
Hydraulic
module
Figure 19 - Connecting the flared connections
Outside
unit connections
Diameter
of refrigeration
connections
Male-female
adapter
(reduction)
Hydraulic module
connections
Model 050
Model 065
Gas
1/2"
(D1) 1/2"
(R1) 1/2"-5/8"
5/8"
Fluid
¼"
(D2) ¼"
(R2) ¼"-3/8"
3/8"
Model 080
Gas
5/8"
(D1) 5/8"
None
5/8"
Fluid
¼"
(D2) ¼"
(R2) ¼"-3/8"
3/8"
Model 095
Model 128
Model 155
Gas
5/8"
(D1) 5/8"
None
5/8"
Fluid
3/8"
(D2) 3/8"
None
3/8"
