Piping and Wiring for Outdoor Unit
Installation Manual
49
ENGLISH
Step 2. Tightening
• Align the center of the pipes and sufficiently
tighten the flare nut by hand.
• Tighten the flare nut with a wrench until the
wrench clicks
• Tightening torque is as following.
Step 3. Preventing entering of foreign
objects
• Plug the pipe through-holes with putty or insu-
lation material (procured locally) to fill up all
gaps as shown in right figure.
• If insects or small animals enter the outdoor
unit, it may cause a short circuit in the electrical
box.
• Finally, form the pipes by wrapping the con-
necting portion of the indoor unit with insulation
material and secure it with two kinds of vinyl
tape. Ensuring thermal insulation is very impor-
tant.
mm inch kgf·m
6.35 1/4 1.8 ~ 2.5
9.52 3/8 3.4 ~ 4.2
12.7 1/2 5.5 ~ 6.6
15.88 5/8 6.6 ~ 8.2
19.05 3/4 9.9 ~ 12.1
Outside diameter
Torque
Outdoor unit
Continuous
Torque wrench
Gas side piping
Liquid side piping
Putty or insulating material
(produced locally)
Drain hose
(if necessary)
Connecting wire
Connection pipe
1,MFL69676201,영영 2017. 3. 8. 영영 3:07 Page 49