Samsung RD040MHXCA Series Installation Manual page 22

I U
NSTALLING THE
Installing the Refrigerant Pipe Work (Continued)
22
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FJM RD040MHXCA_IM_00000_E_2.23.10.indd 22
NIT
Selecting Additional Refrigerant Charge
Basic charge
  
The basic amount of refrigerant for outdoor unit charged in factory is :
Outdoor unit (Series)
 Charge additional refrigerant according to the total length of the pipe.

Refrigerant Charging
Additional charging
  
Additional Refrigerant calculation only related with liquid pipe length
Basic refrigerant for outdoor unit already has been charged
Additional charge calculation = (Sum of total length(m) of Φ9.52)x50g +
ex) a(Φ9.52)=40m(131.2ft), b+c+d(Φ9.52)=15m(49.2ft),e+f+g(Φ6.35)=15m(49.2ft)
Factory charge(kg(lb))
RD040MHXCA
RD050MHXCA
Depends on the total length of the liquid side pipe.
Additional Charge (g) = {(L1(m)x20(g/m)) + (L2(m)x50(g/m))}
(oz) = {(L1(ft)x0.215(oz/ft)) + (L2(ft)x0.54(oz/ft))}
L1(m(ft)): Total length of liquid pipe Ø 6.35(Ø1/4)

L2(m(ft)): Total length of liquid pipe Ø 9.52(Ø3/8)
(Sum of total length(m) of Φ6.35)x20g
= (Sum of total length(ft) of Φ9.52)x0.54oz +
(Sum of total length(ft) of Φ6.35)x0.215oz
Additional charge = 55mx50g + 15mx20g = 3050g
= 180.4ftx0.54oz + 49.2ftx0.215oz = 108oz
4.0(8.82)
2010-2-24 19:57:33