LG Multi V CRUN Serie Montageanleitung Seite 28

Refrigerant piping installation
The Amount of Refrigerant
The calculation of the additional charge should take account of the length of pipe.
CRUN1008T0 charge = 10.0kg
A
CRUN458S0 charge = 3.5kg
B
Additional charge (kg)
=
Total liquid pipe (m): Ø15.88mm
+
Total liquid pipe (m): Ø12.7mm
+
Total liquid pipe (m): Ø9.52mm
+
Total liquid pipe (m): Ø6.35mm
CF(kg)
+
(Correction Factor)
Total amount(kg)
WARNING
Regulation for refrigerant leakage(in Europe)
: the amount of refrigerant leakage should satisfy the following equation for human safety.
Total amount of refrigerant in the system
Volume of the room at which indoor unit of the least capacity is installed
If the above equation can not be satisfied, then follow the following steps.
- Selection of air conditioning system: select one of the next
1. Effective opening part Installation
2. Reconfirmation of outdoor unit capacity and piping length
3. Reduction of the amount of refrigerant
4. 2 or more security device installation of alarm for gas leakage
- Change indoor unit type
: installation position should be over 2m from the floor (Wall mounted type
- Adoption of ventilation system
: choose ordinary ventilation system or building ventilation system
- Limitation in piping work
: design for earthquake-proof and prevention against thermal stress
28 Outdoor Unit
x
0.2(kg/m)
x
0.12(kg/m)
x
0.06(kg/m)
x
0.025(kg/m)
CRUN458S0 : CF = 1.0
CRUN1008T0 : CF = 4.9
= +
A B
A
A
C
c
B
3
B
a
B
1
Outdoor Unit(CRUN1008T0)
Indoor Unit
A : ø15.88, 60m
B : ø9.52, 20m
C : ø12.7, 20m
Additional Charge = A x 0.2 + B x 0.06 + C x 0.12
+ (a+b+c+d+e) x 0.025 + CF
= 60 x 0.2 + 20 x 0.06 + 20 x 0.12
+ (10 x 5) x 0.025 + 4.9
= 21.75 (kg)
0.3 ( kg / m
Cassette type)
X
d e
B B
4 5
b
B
2
a : ø6.35, 10m
b : ø6.35, 10m
c : ø6.35, 10m
d : ø6.35, 10m
e : ø6.35, 10m
3 )