VI-27
I
NSTALLATION
■ Additional refrigerant is charged according to the length and size of liquid pipe.
EX) Additional refrigerant charging
Liquid pipe size Additional refrigerant charging
(O.D. mm) (kg/m)
ø6.35 0.02
ø9.52 0.06
ø12.70 0.125
ø15.88 0.18
ø19.05 0.27
ø22.23 0.35
ø25.40 0.53
Basic model
Factory charging(kg)
RVXVRT080GE 7.5
RVXVRT100GE 7.5
RVXVRT120GE 7.5
RVXVRT140GE 11.0
RVXVRT160GE 11.0
■ Example of additional refrigerant charging
Pipe length is as below.
Additional refrigerant charging of distribution kit (kg/m) Remarks
Regardless of the liquid pipe size, additional refrigerant
0.01
For wall-mounted &
charging is 0.01kg per meter after distribution kit ceiling Indoor unit
Additional refrigerant charging of MCU kit (kg/unit)
Additional refrigerant charging of MCU is 0.5kg for every MCU kit 0.5
Liquid pipe size
ø6.35 ø9.52 ø12.70 ø15.88 ø19.05
(O.D. mm)
Length (m) 25 83 6 20 10
MCU
Pipe length after
distribution kit (m)
2 Ea 20 (2+18)
❈ Additional refrigerant = 25 x 0.02 + 83 x 0.06 + 6 x 0.125 + 20 x 0.18 + 10 x 0.27 + (2+18) x
0.01 + 2 x 0.5 = 13.73 kg
Additional refrigerant charging
ø12.70(5m)
ø15.88(10m)
ø9.52(18m)
ø9.52(15m)
ø9.52(18m)
ø9.52
(10m)
ø9.52
(15m)
ø9.52
(25m)
ø6.35(2m)
ø6.35(10m)
ø6.35(15m)
ø19.05(10m)
ø15.88(10m)
MCU-4EAEV1MCU-4EAE1
ø12.70(1m)
Total refrigerant amount of the system must be less then 100kg. If total
refrigerant amount of system is over 100kg more, the system has to be
divided into smaller system, each containing less than 100kg.
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06_Installation(02~45) 3/15/08 4:34 Page 27
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