LG GHP SUPER - Page 43

VACUUM AND REFRIGERANT CHARGE
ENGLISH
43
The Additional Amount of Refrigerant Charge
The calculation of the additional charge should take into account the length of pipe and correction
factor (CF) value of indoor unit.
Total liquid pipe(m) : Ø25.4 mm x 0.480(kg/m)
+ Total liquid pipe(m) : Ø22.2 mm x 0.354(kg/m)
+ Total liquid pipe(m) : Ø19.05 mm x 0.266(kg/m)
+ Total liquid pipe(m) : Ø15.88 mm x 0.173(kg/m)
+ Total liquid pipe(m) : Ø12.7 mm x 0.118(kg/m)
+ Total liquid pipe(m) : Ø9.52 mm x 0.061(kg/m)
+ Total liquid pipe(m) : Ø6.35 mm x 0.022(kg/m)
+ CF value of indoor unit (see below)
Additional amount of
refrigerant charge (kg)
Calculation of CF value (indoor unit)
Example) 4Way Cassette 14.5KW-1ea, High static duct 7.3KW-2ea,
1Way Cassette 2.3KW-4ea
CF = 0.64 x 1 + 0.26 x 2 + 0.2 x 4=1.96
CF value of indoor unit (unit : kg)
Capacity(Btu/h(kW)) 9k 12k 15k 18k 24k 28k 36k 42k 48k 76k 96k
Type (2.8) (3.6) (4.5) (5.6) (7.1) (8.2) (10.6) (12.3) (14.1) (22.4) (28.0)
Ceiling Concealed Duct (Low Static) 0.17 0.17 0.17 0.37 0.37 ------
Ceiling Concealed Duct (High Static) 0.26 0.26 0.26 0.26 0.26 0.44 0.44 0.44 0.62 1.00 1.00
Wall Mounted 0.24 0.24 0.24 0.28 0.28 ------
1Way Ceiling Cassette 0.20 0.20 - 0.29 0.29 ------
2Way Ceiling Cassette - - - 0.16 0.16 ------
4Way Ceiling Cassette 0.25 0.25 0.32 0.32 0.48 0.48 0.64 0.64 0.64 - -
ARTCOOL Gallery 0.10 0.10 - - - ------
Floor Standing 0.17 0.17 0.17 0.37 0.37 ------
Ceiling & Floor 0.10 0.10 - - - ------
Ceiling Suspended - - - 0.35 0.35 - 0.54 - 0.75 - -
Comm. Stand - - - - - - - - 0.59 - -