figure 15 - Connecting the flared connections (Pipe diameters and permissible lengths)
Liquid valve
Hydraulic unit
Outdoor unit
Gas valve
Flare nut
Flare nut
Flare nut
Flare nut
"Liquid" refrigeration connection
Diameter D2
“Gas” refrigeration connection
Diameter D1
2 6 6 Connecting the flared connections
"
The small pipe must always be connected
before the large one
"
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
"
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
-Remove the plugs from the pipes and the refrigeration
connections.
-Present the pipe to the flared connector and screw the
nut by hand while holding the connector with a wrench
until contact.
-
Warning !
Avoid positioning the Gas pipe in front of
the pump.
-Comply with the indicated tightening torques.
HP model
Waterstage High Power single phase & 3-phase
gas
fluid
Outdoor unit connections
5/8"
3/8"
Refrigeration
connections
Diameter
(D1) 5/8"
(D2) 3/8"
Minimum length (L)
5
Maximum length* (L)
15
Maximum length** (L)
20
Maxi level difference** (D)
15
Hydraulic unit connections
5/8"
3/8"
*
: without additional charge of R410A.
** : Taking into account the possible additional load of refrigerant R410A (see para.
).
D
L
mini
5 m
D
L
mini
5 m
HP
HP
figure 16 - Tightening torque
Designation
Tightening torque
Flare nut 9,52 mm (3/8")
32 to 42 Nm
Flare nut 15,88 mm (5/8")
63 to 77 Nm
Plug (A) 3/8"
20 to 25 Nm
Plug (A) 5/8"
30 to 35 Nm
Plug (B) 3/8", 5/8"
10 to 12 Nm
Holding wrench
Torque wrench
Installation and operating manual "1533 - EN"
Air to Water Heat Pump
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