Daikin FDMA125AV16 Installation Manual page 39

(( START ))
I Check the
existing pipe size
( Standard size
T
See if the already installed air conditioner can operate
and perform a pump-down operation.
Both operation and pump-down are possible
I
Check the existin
9..__ __
.
pipe length.
30 m. or less
!After 30minutes of cooling operation, proceed with
l p ump-down operation without interruption.
l
w
00
Remove the existing
!
air conditioner
PRECAUTIONS ON REFRIGERANT PIPING
• Clean pipe if existing air conditioner is heat pump type contains leftover oil.
• Clean pipe if used compressor oil in existing air conditioner is other than
[SUN ISO, MS, HAB, Barrel freeze, JOMO, Ethereal oil, Ester oil]. Clean pipe
• if existing indoor and outdoor unit is disconnected.
• Change new pipe if refrigerant leakage or it should adding refrigerant.
• Change new heat insulation if existing part is peeling off.
I
Non - standard size)
►
------�
---4 Longer than 30m. --- - proceed with pump-down operatio n without
!
!Rework the flare. (For R32 : See table on next page.) Use the supplied flare nut.
I Existing piping work for new air conditioner.I
Reuse
s
�
I
I
allowed
1--------------- ----1
After 30 minutes of cooling operation,
. .
1nterrupt1on.
Refrigerant recovery
(see back page)
Remove the existing
air conditioner
l
(Note)
1. Clean the pipe if refrigerant leakage and unit has not service port on
gas-liquid stop valve.
2. If indoor unit equipped with EV valve, open that valve before
recovery refrigerant.
3. Maximum pipe length as per specified on next page.
Operation not possible
pump-down operation not possible.
!
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