Samsung RD080PHXEA - Selecting Additional Refrigerant Charge; Refrigerant Charging Calculations

E-26
Installing the Refrigerant Pipe Work
(Continued)
Selecting Additional Refrigerant Charge
 Basic charge
The basic amount of refrigerant for outdoor unit charged in factory is :
Outdoor unit (Series) Factory charge(kg)
RD060PHXEA
RD070PHXEA
RD080PHXEA
2.2
RD110PHXEA
RD140PHXEA
RD160PHXEA
3.3
 Charge additional refrigerant according to the total length of the pipe.
Refrigerant Charging
(A2A+A2W)Additional charging amount = (sum of total length (m) of ø9.52) × 50g
+ (sum of total length (m) of ø6.35) × 20g
+ A2A basic charge(700g)
Ex) 20m × 50g/m + 20m × 20g/m + 700g = 2,100g
Each factory charging values are determined according to basic pipe length as below.
RD060/070/080PHXEA ≤ 5m
RD110/140/160PHXEA ≤ 10m
When extra pipe length are required, additional charging works must be implemented as describes below.
 Depends on the total length of the liquid side pipe.
- Air to Water
- Air to Air
Additional Charge(g) = {(L1x20)+(L2x50)}
 L1:Total length of liquid pipe Ø 6.35(m)
L2:Total length of liquid pipe Ø 9.52(m)
Additional Charge(g) = {(L1x20)+(L2x50)} +700
 Additional charging amount is determined based on liquid pipe specifications.
Outdoor Unit of Liquid
ø
6.35
ø
9.52
Additional charging (g)
20g/m 50g/m
RD060PHXEA_IM_E_32352A(2).indd 26 2010-07-26 ｿﾀﾈﾄ 2:19:59