Olimpia splendid ARYAL S1 E, Instructions For Use And Maintenance Manual

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ø 6,35 mm
1500
(153 kgf/cm)
1600
(163 kgf/cm)
ø 9,52 mm
2500
(255 kgf/cm)
2600
(265 kgf/cm)
ENGLISH
EN - 20
NEVER USE A NORMAL HANDSAW,
scraps could fall inside the pipe and enter the circuitry of the system, damaging
the parts severely (fig. 19a).
c
. remove possible burrs with the special tool.
I
mmediately after cutting and deburring the pipes, seal the ends with insulating
tape.
d
. if you do not use preinsulated pipes, they must be insulated as follows:
• material: polyurethane foam with closed cells
• max. coefficient of transmission: 0,45 W/ (K x m
2
) or 0.39 kcal/(h x C x m
2
)
• minimum thickness: 6 mm (for liquid pipes)
• minimum thickness: 9 mm (for gas pipes)
Do not place both pipes in the same sheath, as this would jeopardize the proper
operation of the system (fig. 19b).
e . Bind any joints in the sheath securely with insulating tape.
f . Insert the fixing nut into the pipe before performing flaring (figure 20).
g . Flare the pipe ends using the special tool. Take care not to break, crack or split the pipe (fig. 20).
h . lubricate the connecting thread with oil for coolant.
DO NOT USE ANY OTHER TYPE OF LUBRICANT
i
. Screw the pipe nut manually on
the connecting thread.
l
. Tighten the nut definitively using
a wrench to hold the threaded
part of the attachment still (to
prevent deformations), and a
dynamometeric wrench on the
nut (figure 21).
Calibrate the dynamometric
wrench to the value suitable for
the pipe dimensions.
2.6.4 - Tests and inspection
after making all pipe connections, check the seal of the system.
operate as follows:
a
. Loosen the cap (20) on the gas line service fitting (figure 22).
b
. Connect a tank of anhydrous nitrogen to the coupling with a 5/16” connector and a pressure reducer.
c
. open the tap on the tank and pressure reducer and bring the pressure in the circuit to 3 bar; close the
tank.
d
. if after about 3 minutes the pressure does not drop, the circuit is in good working order and the pressure
can be raised to 15 bar by reopening the tank.
e
. Check again after 3 minutes that the pressure remains stable at 15 bar.
f
. for safety reasons apply a solution of soapy water to the connectors and check for the formation of bub-
bles revealing leakage of gas.
g
. if the pressure should drop and the search on the attachments with soapy solution gives a negative
outcome, introduce r32 gas into the circuit and look for the leak using a leak detector.
External diameter
of the pipe
Coupling torque
(N.cm)
Additional coupling
torque (N.cm)