Daikin RZVF50, Руководство по установке

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14.2 REFRIGERANT RECOVERY
[Working procedure]
1. Recovery retaining oil in existing gas 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 has no refrigerant recovery port.
4.Recovery refrigerant in accordance with Fluorocarbons Recovery
and Destruction Law
If refrigerant recovery port *2 pressure became lower than gas stop valve
port pressure, refrigerant will recover at the simultaneous from the gas
stop valve port, open gas stop valve (Fig.3-G)) gradually to avoid from
pressure rising rapidly. (Fig.3- �)
NOTE*2 Recovery refrigerant from liquid valve port and stop valve port
simultaneous if there has no refrigerant recovery port.
Retaining oil recovery amount improved
approx. 5 times from regular refrigerant
recovery method
(pipe length, height difference, pipe path etc. is difference by installation condition)
ABOUT FLARE PROCESSING
I
Fi 9. I
n oor
=,
t::::
U
::::
ni
:::::
t =:7l
Liq.
atop valve
I
@I!>
Fi 9. 2
n oo r
i1
n·
-,
�==':::7
aa.s. pipe
Liq,
stop valve
I
@I!>
Fi 9. 3
n oo r
u
ni
Liq,
stop valve
@I!>
@I!>
Ref.
recovery
port
• 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
¢ 15.9
A(+0,-0.4)
For R32
13.2
19.7
■ Flare nut
[Unit:mm]
Pipi�
outsi e
B (+O ,-0.6)
diameter
For R32
919.S
22
¢ 15.9
29
Pressure guage
Ref. recovery Tank
machine
Pressure guage
Ref. recovery
Tank
machine
Pressure guage
Ref, recover, Tank
machine
( ____ R_E _FR_IG_ E_R _AN_T_P_IP_ E_S_IZ_E _TA_B_L_E _____ )
Outdoor Unit Existing pipe size 9.5/15.9
Height
difference
Desiin pressure
(Hig pressure)
Standard pipe length
7.Sm
RZMFS0
------------------------------ -----------
9.5/15.9 Max pipe length 30m Max 20 m
RZMF71
------------------------------ -----------
Chargeless length
15m
4.17 MPa
RZMF90
Standard pipe length
7.Sm
------------------------------ -----------
RZMFl00
9.5/15.9 Max pipe length
50m Max 30 m
RZMF125
------------------------------ -----------
RZMF140
Chargeless length
30m
■
Refer to the installation manual for details other than those mentioned above table such as additional refrigerant charge amount.
■
Clean the existing pipe if it length is exceed 30 m.
■
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
56