Daikin RXYQ96PYDN, Руководство по обслуживанию

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Test Operation SiUS34-801A_b
74 VRVIII R-410A Heat Pump 60Hz
•
Calculate a necessary additional refrigerant charging amount according to the procedure for
calculation shown below.
* Procedure for calculating additional refrigerant charging amount (Unit: 0.1 kg)
•
If there is a refrigerant shortage after completion of vacuum drying, close the liquid and gas stop
valves and charge liquid refrigerant through the stop valve service port.
•
If the refrigerant charging is still insufficient, turn ON the power supply following the
information on the page 75 ~.
Check on amo u nt of refrigerant
charge
Is a correct qu antity of refrigerant charged?
The follo w ing method is a v aila b le for additional charging of
refrigerant.
(1) Calc
u late additional refrigerant qu antity.
R =
(Total length (ft)
of liquid piping
size at
φ
7/8)
(Total length (ft)
of liquid piping
size at
φ
5/8)
(Total length (ft)
of liquid piping
size at
φ
3/8)
(Total length (ft)
of liquid piping
size at
φ
3/4)
(Total length (ft)
of liquid piping
size at
φ
1/2)
(Total length (ft)
of liquid piping
size at
φ
1/4)
0.249
0.121
0.040
0.175
0.081
0.015
HEAT PUMP SYSTEM
MODEL NAME
MODEL NAME
THE AMOUNT OF
REFRIGERANT
RXYQ72 ~ 120PYDN
RXYQ72 ~ 120PTJU
RXYQ144PTJU
RXYQ144 ~ 192PYDN
RXYQ168 ~ 192PTJU
RXYQ216 ~ 240PYDN
RXYQ216 ~ 240PTJU
—
7.9 lb
2.2 lb
3.3 lb
REFRIGERANT AMOUNT FOR EXCEEDING
CONNECTION CAPACITY OF INDOOR UNIT
INDOOR
CONNECTION
CAPACITY
MORE THAN 100%
120% OR LESS
MORE THAN 120%
130% OR LESS
RXYQ72 ~ 240PYDN
RXYQ72 ~ 240PTJU
1.1 lb
1.1 lb
Check the stat u s of the
stop v al v es
Has the additional refrigerant charging amo u nt b een
recorded on the Precautions for Servicin g la b el?
Check to b e s u re the follo w ing stop v al v es are open:
Li qu id-pipe
stop v al v e
Open Open Open
S u ction pipe
stop v al v e
Open
E qu alizing pipe
stop v al v e
D u al press u re gas
pipe stop v al v e