Connection Of Piping - Indoor, Outdoor, Bd Unit - LG LA240HSV Installation Manual

THE INDOOR UNIT INSTALLATION
12

Connection of piping - Indoor, Outdoor, BD Unit

Align the center of the piping and sufficiently
tighten the flare nut by hand.
Refrigerant Connections
Capacity
(kBtu/h) Liquid
24 1/4 (Ø6.35)
36 3/8 (Ø9.52)
Refrigerant Connections
Pipe Size (inch (mm))
BD Unit
Liquid
PMBD3620 1/4 (Ø6.35)
x 2EA
PMBD3630 1/4 (Ø6.35)
x 3EA
PMBD3640 1/4 (Ø6.35)
x 4EA
PMBD3641 1/4 (Ø6.35)
x 4EA
h BD Unit(PMBD3641) includes the sockets.
(Ø 12.7 → Ø 15.88 x 1EA,
Ø 6.35 → Ø 9.52 x 1EA)
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.
Outside diameter
mm inch N. m
Ø6.35 1/4 14~18 1.4~1.8 10~13
Ø9.52 3/8 34~42 3.5~4.3 25~31
Ø12.7 1/2 49~61 5.0~6.2 36~45
Ø15.88 5/8 69~82 7.0~8.4 51~60
Ø19.05 3/4 100~120 10.0~12.2 73~88
Pipe size
Gas
1/2 (Ø12.7)
5/8 (Ø15.88)
Connectable
Indoor Unit
Capacity
(kBtu/h class)
Gas
3/8 (Ø9.52)
9/12/18/24k
x 2EA
3/8 (Ø9.52)
9/12/18/24k
x 3EA
3/8 (Ø9.52)
9/12/18/24k
x 4EA
3/8 (Ø9.52) 9/12/18/24k
x 3EA (A/B/C ROOM)
1/2 (Ø12.7) 36k
x 1EA (D ROOM)
Torque
kgf.m lbf.ft
Indoor unit tubing Flare nut
Wrench
Indoor unit tubing
(PMBD3620 / PMBD3630 /
PMBD3640)
(only indoor units
24kBtu/h class)
(PMBD3641)
(only indoor units
36kBtu/h class- connect "D ROOM")
Pipes
Open-end wrench (fixed)
Flare nut
Connection pipe
(Only Indoor Units
24 kBtu/h class )