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• REFRIGERANT RECOVERY )
Fig, 1
[Working procedure]
n
oor
:e;,
t::::
U
::::
n
i�:J, l
1. Recovery retaining oil in existing pipe Approx. 1 min
Close gas stop valve (liquid stop valve: open)
and recovery refrigerant from gas stop valve port.(Fig.1)
2. Recovery retaining oil in existing liquid pipe Approx. 1 min
Recovery refrigerant from liquid stop valve port. (Fig.2)
3. Recovery refrigerant in outdoor unit Approx. 2-3 min
Recovery refrigerant from outdoor unit refrigerant recovery port *
1
.(Fig.3)
NOTE 1 Can be omit this procedure if there is no refrigerant recovery port
4. Recovery refrigerant in accordance with Fluorocarbons Recovery and
Destructive Law
If refrigerant recovery port *
2
pressure become lower than gas stop valve
port pressure, refrigerant will recover at the simultaneous from the gas
Fig, 2
stop valve port, open gas stop valve (Fig.3-1 ) gradually to avoid from pressure
rising rapidly. (Fig.3-2 )
NOTE 1 Can be omit this procedure if there has no refrigerant recovery port
simultaneously if there has no refrigerant recovery port.
Fig, 3
Retaining oil recovery amount improved
approx. 5 times from regular refrigerant
recovery method
,........n,...,..,..,
00
,..,.r-,
Un
i
(pipe length, height difference, pipe path etc. is difference by installation condition)
ABOUT FLARE PROCESSING
I
Liq,
stop valve
t
<§ill)
I
Liq,
stop valve
t I <®
Liq,
stop valve
<§ill)
• Flare connection area of existed piping will cause
processing deterioration, make sure to do newly
re-processing.
• Please use flare nut which attached with product
(Do not use existed flare nut)
■ Flare processing
[Unit: mm]
{D=
Piping
outside
diameter
� 9.5
r/J 15.9
A (+0 ,-0.4)
For R32
13.2
19.7
■ Flare nut
[Unit: mm]
Piping
outside
diameter
� 9.5
r/J 15.9
B (+0 ,-0.6)
For R32
22
29
Pressure guage
Ref. recovery
IHChine
Ref. recovery
IHChlne
Preuure guage
Tant
Tant
Ref. recovery
TaH
IHChine
( ______
R _E_FR_ I_G_ER_ A_N_T _P_IP_E_S_IZ_E_ T_A _BL_ E
___ )
Outdoor Unit
Existing pipe size
9.5/15.9
Height
Design pressure
difference
(High pressure)
Standard pipe length
7.5m
9.5/15.9
50m
Max30m
4.15 MPa
RZCA
1
2
5
AV
1
6
Max.
pipe length
RZCA
1
40AV
1
6
Chargeless pipe length 30m
■
Refer to the installation manual for details other than those mentioned above table such as additional refrigerant charge amount.
■
Clean the existing piping if it length is exceed 30m.
■
Clean the existing pipe if chargeless length is exceed limit of existing pipe pump down refrigerant recovery.
■
Standard pipe (R32)
Pipe size (mm)
¢ 9.5
¢15.9
Thickness (mm)
t 0.8
t 1.0
50
Содержание FCA125AV16
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