MrCool Olympus Series User Manual

Page 41 mrcool.com
Refrigerant Piping Connection
Step 2: Remove Burrs
Burrs can affect the airtight seal of the refrigerant
piping connections. They must be completely
removed from the piping ends before they can be
flared and connected.
1. Hold the cut section of the piping at a downward
angle in order to prevent the burrs from falling
into the pipe while they are being removed.
2. Using a reamer or deburring tool, remove all of
the burrs from the piping. Refer to Fig. 7.2 below.
Step 3: Flare Pipe Ends
Proper flaring is essential for the refrigerant piping
connections to achieve an airtight seal.
1. Once the burrs have all been removed from the
cut pipe, seal the ends with PVC tape to prevent
any foreign materials from entering it.
2. Then, sheath the pipe with insulating material.
3. Place flare nuts on both ends of the pipe. Ensure
each of the nuts is facing in the correct direction.
Their direction cannot be changed nor can they be
replaced once the pipe end has been flared.
Please refer to Fig. 7.3 below.
4. Remove the PVC tape from both ends of the pipe
when you’re ready to flare the pipe.
Pipe
Reamer
Point down
Fig. 7.2
Flare nut
Copper pipe
Fig. 7.3
5. Clamp the flare form on the end of the pipe. The
end of the pipe must extend beyond the edge of
the flare form in accordance with the dimensions
in the table below. Please refer to Figs. 7.4 - 7.5.
PIPING EXTENSION BEYOND FLARE FORM
Outer Diameter
of Pipe
A
Fig. 7.4
Flare form
Pipe
A
Fig. 7.5
Flare Form
Min.
0.0275 in
(0.7 mm)
0.04 in
(1.0 mm)
0.04 in
(1.0 mm)
0.078 in
(2.0 mm)
0.05 in
(1.3 mm)
0.063 in
(1.6 mm)
0.07 in
(1.8 mm)
0.086 in
(2.2 mm)
Max.
Ø 0.25 in
(6.35 mm)
Ø 0.375 in
(9.5 mm)
Ø 0.5 in
(12.7 mm)
Ø 0.63 in
(16 mm)
0.078 in
(2.0 mm)
0.094 in
(2.4 mm)
Ø 0.75 in
(19 mm)
Units: inch (millimeter)
6. Place flaring tool onto the flare form. Refer to the
table at the bottom of the following page to find
the correct flare dimensions for the piping
diameter being flared.
7. Turn the handle of the flaring tool clockwise until
the pipe is fully flared.
8. Remove the flaring tool and the flare form from
the pipe. Inspect the end of the pipe for cracks
and that it has been flared evenly.

MrCool Olympus Series Specifications

General

Brand	MrCool
Model	Olympus Series
Category	Air Handlers
Language	English