Owners Manual

49-5000255 15
ENGLISH
INSTALLATION INSTRUCTIONS
Piping Maintenance
During installation, provide maintenance as specified in
the table in order to prevent water, foreign matter and
dust from entering the pipes.
Location Work Period Maintenance Method
Outdoors
More than 1 month Screw
Less than 1 month
Screw or Strap
Indoors
NOTE: Be sure foreign matter cannot enter the piping,
especially when the pipe penetrates a wall or a floor.
Attention Item for Piping Connection
• Only use properly sized wrenches and torque
wrenches for installing and removing piping from the
connection kit.
• Be sure to properly strap all piping and electrical cables
with installing the connection kit.
• For the sizes of the flares, please refer to the
following table.
Use the following procedure when no torque wrench is
available:
1. Use a spanner to tighten the nut of the flare to a
position where the tightening torque sharply increases.
2. The tightening angle for the position where the
tightening torque sharply increases.
3. After the work, make sure there is no air leakage.
13
Tube size Tightening torque (ft. lbs) Machined size A (in.) Flare shape
1/4”
8.7~10.1
11/32 ~ 23/64
45°
A
90°
3/8”
18.1~21.7
1/2 ~ 33/64
1/2”
36.2~39.8
41/64 ~ 21/32
5/8”
57.9~72.3
49/64 ~ 25/32
3/4”
72.3~86.9
15/16
Pipe size Tightening angle
Recommended tool
length (in.)
1/4 60°~90° 6
3/8 60°~90° 8
1/2 30°~60° 10
5/8 30°~60° 12
3/4 20°~35° 18
Apply refrigerant oil