EAS ELECTRIC EDM Serie Manual De Usuario E Instalacion página 99

Table 7.2
Total piping length
(farthest distance from
the line pipe branch)
(farthest distance from
the line pipe branch)
Drop height between
indoer and outdoor unit
Drop height between
two indoer units
Size of joint pipes for indoer unit
Table 7.3 Size of joint pipes for 410A and R32
indoor unit
Capacity Size of main pipe(mm)
of indoor
Gas side
unit (A)
52
<1>1/2 (0,5")
71
<1>5/8 (0,626")
105
<1>5/8 (0,626")
Size of joint pipes for outdoor unit
Base on the following tables, select the diameters
of the outdoor unit connective pipes. ln case of the
main accessory pipe large than the main pipe, take
the large one for the selection.
Table 7.4 Size of joint pipes for 410A and R32
outdoor unit
the size of main pipe(mm)
Gas side Liquid side Thelstbranchingpipe
<1>518
(0,626") <1>3/8 (0,375")
<1>5/8 (0,626") <1>3/8 (0,375")
<1>3/8 (0,375")
<1>5/8 (0,626")
_ Refriaerant Pioina Connection lnstructions
• The branching pipe must be installed
horizontally. An angle of more than 10
cause malfunction.
• DO NOT insta li the connecting pipe until both
indoor and outdoor units have been installed.
• lnsulate both the gas and liquid piping to
prevent water leakage.
Step1: Cut pipes
When preparing refrigerant pipes, take extra
care to cut and flare them properly. This will
ensure efficient operation and minimize the
need for future maintenance.
1. Measure the distance between the indoor
and outdoor units.
2. Using a pipe cutter, cut the pipe a little
longer than the measured distance.
Permitted length
52+52 30/98' L+Max
(Ll, L2)
71+71 50/164'
105+105
15/49' Ll, L2
10/32.8' Ll-L2
20/65.6' Hl
0.5/1.6' H2
--------..-.....------1
Liquid side
<1>1/4 (0,25") KCMl-112
<1>3/8 (0,375") KCMl-112
<1>3/8 (0,375") KCMl-112
KCMl-112
KCMl-112
KCM 1-112
º
may
OcAu110N
DO NOT deform pipe while cutting. Be extra
careful not to damage, dent, or deform the pipe
while cutting. This will drastically reduce the
heating efficiency of the unit.
1. Make sure that the pipe is cut at a perfect
º
90 angle. Refer to Fig. 7.4 for examples
v
of bad cuts
X
Step2: Remove burrs.
Burrs can affect the air-tight seal of refrigerant
piping connection. They must be completely
removed.
1. Hold the pipe at a downward angle to
prevent burrs from falling into the pipe.
2. Using a reamer or deburring tool, remove
all burrs from the cut section of the pipe.
Q
o
Point down
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
1. After removing burrs from cut pipe, seal
the ends with PVC tape to prevent foreign
materiais from entering the pipe.
2. Sheath the pipe with insulating material.
3. Place flare nuts on both ends of pipe. Make
sure they are facing in the right direction,
because you can't put them on or change
their direction after flaring. See Fig. 7.6
Copper pipe
4. Remove PVC tape from ends of pipe when
ready to perform flaring work.
19
X X
Fig. 7.4
Pipe
Reamer
Fig. 7.5
�
Flare nut
Fig. 7.6
V.2