Connecting The Flared Connections - Waterstage WS G140DC6 Series Installation And Operating Manual

Air to Water Heat Pump
HP model
Outdoor unit connections
Refrigeration Minimum length (L)
connections
Maximum length* (L)
Maximum length** (L)
Maxi level difference** (D)
Hydraulic unit connections
* : without additional charge of R410A.
** : Taking into account the possible additional load of refrigerant R410A (see para.
mini mini
5 m 5 m
HP
figure 15 - Connecting the flared connections (Pipe diameters and permissible lengths)

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.
- 18 -
Diameter
Outdoor unit
Liquid valve
HP
L L D D
Gas valve
"Gas" refrigeration connection
Diameter D1
Waterstage High Power single phase & 3-phase
gas
5/8"
(D1) 5/8"
5/8"
"Additional charge", page
Flare nut
"Liquid" refrigeration connection
Diameter D2
Flare nut
Holding wrench
Torque wrench
Designation
Flare nut 9,52 mm (3/8")
Flare nut 15,88 mm (5/8")
Plug (A) 3/8"
Plug (A) 5/8"
Plug (B) 3/8", 5/8"
figure 16 - Tightening torque
Installation and operating manual "1533 - EN"
fluid
3/8"
(D2) 3/8"
5
15
20
15
3/8"
20).
Hydraulic unit
Flare nut
Tightening torque
32 to 42 Nm
63 to 77 Nm
20 to 25 Nm
30 to 35 Nm
10 to 12 Nm
Flare nut