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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 depending on the indoor units (B).
(Table 2) Corrective amount of refrigerant depending on the indoor units
Capacity rank
Capacity code (Equivalent to HP)
MMU-AP****H / HP/ HY*
4-way cassette
MMU-AP****MH*
2-way cassette
MMU-AP****WH*
1-way cassette
MMU-AP****YH / SH*
MMD-AP****BHP*
MMD-AP****BH*
MMD-AP****S(P)H*
Duct
Indoor unit
MMD-AP****M(P)HY*
MMD-AP****H*
model name
MMD-AP****HP*
Under-ceiling
MMC-AP****HP*
High wall
MMK-AP****H / HP
MMF-AP****H*
MML-AP****H*
Floor standing
MML-AP****BH*
MML-AP****NH*
n I
d
o
r o
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Corrective amount of refrigerant depending on the indoor units (B)
Next, refer to the following table for the corrective amount of refrigerant by outdoor HP (C).
(Table 3) 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), the corrective amount of refrigerant depending
on the indoor units (B) and the corrective amount of refrigerant by outdoor HP (C). This is the final additional
amount of refrigerant.
If a minus sign is indicated as the result, do not add the refrigerant (= 0 kg).
<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
e l
n
Corrective amount of refrigerant depending on the indoor units (B)
C
o
m
p
e
n
s
t a
o i
n
b
y
o
u
d t
o
r o
H
P
(
C
)
Additional refrigerant charge amount at local site (A) + (B) + (C)
Additional refrigerant
charge amount per 1 m
pipe
liquid pipe
(Table 1)
(A)
Standard amount of refrigerant
(m)
=
0
0 .
2
5
×
=
0
0 .
5
5
×
Additional amount of refrigerant by pipe length (A)
*1: Capacity code of 005 type is the same as 007 type.
(*1)
005
009
007
008
0.8
1.0
0.8
0.9
0.4
-
-
-
0.4
0.4
0.4
-
0.4
-
0.4
-
0.4
-
0.4
-
0.5
-
0.5
-
0.3
-
0.3
-
0.3
0.3
0.3
-
0.4
-
0.4
0.4
-
-
-
-
-
-
-
-
-
-
-
-
0.5
0.5
-
-
-
-
-
-
0.5
-
0.5
-
0.3
0.3
-
-
0.5
0.5
-
-
u
n
t i
m
o
d
l e
M
g
h t
(
) A
43
66
Corrective amount of
refrigerant depending
+
on the indoor units
(Table 2)
(
) B
Additional amount of refrigerant pipe diameter on
(kg/m)
010
012
014
015
017
018
020
1.1
1.25
1.5
1.7
1.85
2.0
2.25
-
0.4
-
0.8
-
0.8
-
0.4
-
0.6
-
0.6
-
0.4
-
0.5
-
0.7
-
0.4
-
0.5
-
0.5
-
0.5
-
0.5
-
0.5
-
0.3
-
0.5
-
0.5
-
0.3
-
0.5
-
0.5
0.4
0.4
0.4
0.5
0.5
0.5
0.7
-
-
-
-
-
0.8
-
-
-
-
-
0.7
-
-
-
0.6
-
0.6
-
0.5
-
0.7
-
0.7
-
-
-
0.7
-
0.7
-
0.5
-
0.5
-
0.8
-
0.3
-
0.5
-
0.5
-
0.5
-
0.5
-
0.5
C
a
p
a
c
y t i
a r
n
k
B
(
C
r o
H
P0305
M
H
P0405
-
1
2 .
-
1
2 .
k
g
kg
k
g
kg
Compensation by
+
outdoor HP
(Table 3)
(
C
)
each liquid side
(kg)
kg
kg
kg
(Unit: kg)
024
027
2.5
3.0
-
0.8
0.8
-
-
-
-
0.7
0.7
-
0.6
-
-
0.7
0.7
-
0.8
0.8
-
0.8
0.8
0.7
0.7
-
1.0
1.0
-
0.7
0.7
-
0.8
0.8
-
0.7
-
-
1.0
1.0
-
0.8
-
-
0.7
-
-
-
-
e r
c
v i t
e
a
m
o
u
t n
f o
e r
r f
g i
e
a r
n
) t
k (
) g
kg
kg
kg
kg
kg
kg
M
H
P0505
-
1
2 .
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