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Checklist 2
Calculate the additional amount of refrigerant from the following:
Additional refrigerant
Real length of liquid
=
charge amount at local
site
Firstly enter the total length for each liquid pipe in the following table and then calculate the additional amount of
refrigerant by pipe length.
(Table 1) Additional amount of refrigerant by pipe length
Total pipe length on
Pipe diameter on the liquid
each liquid side
side
Ø
6
4 .
Ø
9
5 .
Next, refer to the following table for the corrective amount of refrigerant by outdoor HP (B).
(Table 2) Compensation by outdoor HP
O
u
d t
o
r o
u
n
t i
y t
p
e
C
o
m
p
e
n
s
t a
o i
n
b
y
o
u
d t
o
r o
H
P
k (
) g
Lastly, add the additional amount of refrigerant by pipe length (A) and the corrective amount of refrigerant by
outdoor HP (B). This is the final additional amount of refrigerant.
<Additional amount of refrigerant>
A
d
d
t i
o i
n
l a
a
m
o
u
t n
f o
e r
r f
g i
e
a r
t n
b
y
p
p i
e
C
o
m
p
e
n
s
t a
o i
n
b
y
o
u
d t
o
r o
H
P
B (
)
Additional refrigerant charge amount at local site (A) + (B)
Additional refrigerant
charge amount per 1 m
pipe
liquid pipe
(A)
Standard amount of refrigerant
m
=
0
0 .
2
5
×
=
0
0 .
5
5
×
Additional amount of refrigerant by pipe length (A)
e l
n
g
h t
(
) A
Compensation by
+
outdoor HP
(Table 2)
(Table 1)
(
Additional amount of refrigerant pipe diameter on
kg/m
M
H
P0404
M
H
P0504
0
0.4
k
g
k
g
kg
52
66
) B
each liquid side
kg
kg
kg
kg
M
H
P0604
0.8
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Troubleshooting
