Refrigerant Piping Connection Instructions - FRIMEC F6CCY35BR Manuel D'instructions

Total piping length
(farthest distance from
Piping
the line pipe branch)
length
(farthest distance from
the line pipe branch)
Drop height between
Drop
indoor and outdoor unit
height
Drop height between
two indoor units
Size of joint pipes for indoor 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)
18K Φ12.7(0.5 )
24K
Φ15.9(0.626 )
30K
Φ15.9(0.626 )
Size of joint pipes for outdoor unit
Base on the following tables, select the diameters
of the outdoor unit connective pipes. In 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)
Model
Gas side Liquid side
36K
Φ15.9(0.626 ) Φ9.5(0.375 )
48K
Φ15.9(0.626 )
60K Φ15.9(0.626 )

Refrigerant Piping Connection Instructions

•
The branching pipe must be installed
horizontally. An angle of more than 10° may
CAUTION
cause malfunction.
•
DO NOT install the connecting pipe until both
indoor and outdoor units have been installed.
•
Insulate 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.
V.1
Table 7.2
Permitted length
/
18K+18K
/
24K+24K
30K+30K
/
/ .
/ .
. / .
Available
Liquid side
branching pipe
Φ6.35(0.25 )
KCMI-112
Φ9.5(0.375 )
KCMI-112
Φ9.5(0.375 )
KCMI-112
The 1st branching pipe
KCMI-112
KCMI-112
Φ9.5(0.375 )
Φ9.5(0.375 ) KCMI-112
CAUTION
DO NOT deform pipe while cutting. Be extra
L+Max
careful not to damage, dent, or deform the pipe
(L1, L2)
while cutting. This will drastically reduce the
heating efficiency of the unit.
L1, L2 1. Make sure that the pipe is cut at a perfect
90° angle. Refer to Fig. 7.4 for examples
L1-L2
of bad cuts
H1
90°
H2
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.
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
materials 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,
e ause ou a t put the o or ha ge
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
Rough
Oblique Warped
Fig. 7.4
Pipe
Reamer
Fig. 7.5
Flare nut
Fig. 7.6