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
- Depending on the case, connect an adapter (reducer)
1/4’’- 3/8’’ or 1/2’’- 5/8’’ (see
).
- 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.
figure 16 - Tightening torque
Designation
Tightening torque
Flare nut 6,35 mm (1/4")
14 to 18 Nm
Flare nut 9,52 mm (3/8")
33 to 42 Nm
Flare nut 12,7 mm (1/2")
50 to 62 Nm
Flare nut 15,88 mm (5/8")
63 to 77 Nm
Plug (A) 3/8", 1/4"
20 to 25 Nm
Plug (A) 1/2"
25 to 30 Nm
Plug (A) 5/8"
30 to 35 Nm
Plug (B) 3/8", 5/8"
10 to 12 Nm
Plug (B) 1/2", 1/4"
12,5 to 16 Nm
Holding wrench
Torque wrench
Installation and operating manual "1532 - EN"
- 19 -
Air to Water Heat Pump
