57
8-2. ADJUSTING THE AMOUNT OF REFRIGERANT
•
Check additional refrigerant charging amount referring to table 5, 6 when liquid pipe is one size larger than standard diameter.
3.0kg
4.5kg
4.5kg
5.8kg
7.1kg
21 — 30m
0.6kg
31 — 40m
1.2kg
0.6kg
0.6kg
0.9kg
1.2kg
41 — 50m
1.8kg
1.2kg
1.2kg
1.8kg
2.4kg
51 — 60m 61 — 70m
<Table 7> Additional refrigerant charging amount for pipe of standard diameter
Outdoor unit
Max.
pipe length
Additional refrigerant charging amount
for pipe length exceeding 30 m (kg)
Amount of unit
filling refrigerant (kg)
PUHZ-P100VHA3
PUHZ-P100YHA
PUHZ-P125VHA3
PUHZ-P125YHA
PUHZ-P140VHA3
PUHZ-P140YHA
PUHZ-P200YHA3
PUHZ-P250YHA3
50m
50m
50m
70m
70m
2.7kg
3.6kg
3.6kg
4.8kg
<Table 5> Required additional charge when the liquid pipe is one size larger than the standard diameter (1:1 SYSTEM)
:
12.7
:
12.7
:
15.88
:
15.88
P100
P125,140
P200
P250
Liquid pipe dia.
Chargeless
25m
30m
40m
45m
100 g per 1 m longer than 10 m
100 g per 1 m longer than 10 m
Additional refrigerant amount (Longer than 20 m)
W(g) = 180
%
pipe length(m) - 3000
10m
10m
20m
20m
Max. pipe length
Refrigerant amount to be added
<Table 6> Required additional charge when the liquid pipe is one size larger than the standard diameter
(TWIN/TRIPLE/QUADRUPLE
SYSTEM)
Capacity
P100,125,140
P200, 250
When the extension pipe length (main branch piping) exceeds 10 m(P100-140)/20m(P200, 250)
Additional refrigerant amount W(g) = (100
%
L2) + (60
%
L3) + (30
%
L4) - 2000
Additional refrigerant amount W(g) = (180
%
L1) + (120
%
L2) + (90
%
L3) + (30
%
L4)- 3000
If the calculation produces a negative number ( W
0), additional charging is not necessary.
L1:
:
15.88 liquid pipe length (m)
L2:
:
12.7 liquid pipe length (m)
L3:
:
9.52 liquid pipe length (m)
L4:
:
6.35 liquid pipe length (m)
If the calculation produces a negative number ( W
0), additional charging is not necessary.
