MrCool DIY E Star Series Owners & Installation Manual page 29

Extend the pipe by unwinding it
1. Use your hands to slowly unwind the copper piping (Quick Connect
necessary for use.
2. If the pipe is repeatedly bent or extended, it will become hard and difficult to manipulate. Avoid bending
or extending the pipe for more than 3 times.
3. Do not bend the pipe excessively, otherwise it will break.
Refer to
Fig. 6.1
Carefully unroll to indoor
handler connection
TORQUE REQUIREMENTS
1.
Excessive force can break the nut or damage the refrigerant piping. You must not exceed
torque requirements shown in the table below.
2.
You can find the Outer Pipe Diameter stamped (in inches) on the valve set of the con-
denser. Refer to this when finding and applying the torque values in the table below.
3.
Note that there may be differences in Torque Wrenches (i.e. automotive torque wrench
versus a HVAC torque wrench) and that a socket style wrench cannot be used here.
Stamp Outer Diameter
of Pipe (in/mm)
1/4"
Ø0.25" (Ø 6.35mm)
3/8"
Ø0.375" (Ø 9.52mm)
1/2"
Ø0.5" (Ø12.7mm)
5/8"
Ø0.63" (Ø16mm)
Refrigerant Piping Connection
Radius
≥4in (10cm)
Keep excess coiled
Connect directly to
exterior condensor
Tightening Torque
(lb·ft / N·m)
11 lb•ft (14.91 N·m)
18.4 lb•ft (24.95 N·m)
25.8 lb•ft (34.98 N·m)
33.19 lb•ft (45 N·m)
mrcool.com
line set). Only unwind as much as
®
MINIMUM BEND RADIUS
When bending connective refrigerant
piping, the minimum bending radius is
a 10cm. Refer to Fig. 6.1
Add. Tightening Torque
(lb·ft / N·m )
11.8lb•ft (16 N·m)
19.18lb•ft (26 N·m)
26.55lb•ft (36 N·m)
34.67lb•ft (47.01N·m)
Fig. 6.1
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