ELL Solid RG10A/BGEF Bedienungsanleitung Seite 37

• Clamp flare from on the end of the pipe. The end
of the pipe must extend beyond the flare form.
Flare form
• Place flaring tool onto the form.
•
Turn the handle of the flaring tool clockwise
until the pipe is fully flared.
PIPING EXTENSION BEYOND FLARE FORM
Pipe
Tightening
gauge
torque
Ø 6.35 18-20 N.m 8.4/0.33
(Ø 1/4") (180-200kgf.cm)
Ø 9.52 32-39 N.m
13.2/0.52
(Ø3/8") (320-390kgf.cm)
Ø 12.7 45-59 N.m
16.2/0.64
(Ø 1/2") (490-590kgf.cm)
Ø 16 57-71 N.m
19.2/0.76
(Ø 5/8") (570-710kgf.cm)
Ø 19 67-101 N.m
23.2/0.91
(Ø 3/4") (670-1010kgf.cm)
Ø 22 85-110 N.m
26.4/1.04
(Ø 7/8") (850-1100kgf.cm)
• Remove the flaring tool and flare form, then inspect the end of
the pipe for cracks and even flaring.
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first, then
connect it to the outdoor unit. You should first connect the
low-pressure pipe, then the highpressure pipe.
When connecting the flare nuts, apply a thin
coat of refrigeration oil to the flared ends of
•
the pipes.
Align the center of the two pipes that you will
•
connect.
Indoor unit tubing
•
Tighten the flare nut snugly by hand.
•
Using a wrench, grip the nut on the unit tubing.
•
While firmly gripping the nut, use a torque
wrench to tighten the flare nut according to
the torque values in above table.
NOTICE
Use both a spanner and a torque wrench
when connecting or disconnecting pipes to/from the unit.
Pipe
Flare dimension (A)
(Unit:mm/Inch)
Flare shape
Min. Max.
8.7/0.34
13.5/0.53
16.5/0.65
19.7/0.78
23.7/0.93
26.9/1.06
Flare nut Pipe
Outdoor unit
CAUTION
Ensure to wrap insulation around the piping. Direct
contact with the bare piping may result in burns or
frostbite.
• Make sure the pipe is properly connected.
Over tightening may damage the bell
mouth and under tightening may lead to
leakage.
NOTICE
MINIMUM BEND RADIUS
Carefully bend the tubing in the middle
according to the diagram below.
DO NOT bend the tubing more than 90° or
more than 3 times.
Use appropriate tool
min-radius 10cm (3.9 )"
• After connecting the copper pipes to the indoor
unit, wrap the power cable, signal cable and the
piping together with binding tape.
NOTICE
DO NOT intertwine signal cable with other wires.
While bundling these items together.
DO NOT
intertwine or cross the signal cable with
any other wiring.
36
Liquid side piping
(Smaller diameter)
(Bigger
Torque wrench