LG Multi F A2UW14GFA0 Engineering Product Data Book page 346

3. Installation of outdoor unit 3. Installation of outdoor unit
3.7 Outdoor unit piping
3.7.1 Outdoor unit piping
Required tools
Screw Driver Drill M/C f 3.5/F14.5
Spanner Torque Wrench
Hexagonal wrench(4mm, 5mm) Hook Meter
3.7.2 Connecting piping
1) Connecting socket must be used when
connecing the piping to the indoor and
outdoor units
n Multi F connecting socket
Indoor units
A
Ø9.52(3/8) 'Ø12.7(1/2)
18k, 24k
A
Outdoor
side flare
h Connecting socket will be provided with indoor unit in
same box.
n Multi FDX connecting piping size
Gas side
Indoor units
A
18k, 24k Ø9.52(3/8)'Ø12.7(1/2)
51 _
Heat pump 50Hz/R410A
Measuring Tape, Blade Core drill
Soap Foam Thermometer
Multi Tester Flare Set
[Unit : mm(inch)]
Gas Liquid
B A
Not necessary
B
Indoor
side flare
[Unit : mm(inch)]
Liquid side
B A
Not necessary
2) Align the center of the piping and suffi-
ciently tighten the flare nut by hand.
3) Finally, tighten the flare nut with torque
wrench until the wrench clicks.
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the arrow on
the wrench.
Outdoor unit
B
Outdoor unit
Main liquid
side valve
Liquid
side piping
B
Connecting socket
(Included in indoor unit box)
A-Unit
Gas pipe
B-Unit
Liquid pipe
Torque wrench
Main gas
side valve
Gas side piping
ROOM A
ROOM B
ROOM C
ROOM D
ROOM E