27
GB
)RU34+<3ā76/08$<6/08$
<Additional Charge>
Piping length from outdoor unit to the farthest indoor unit 30.5 m [100 ft]:
Use table [A].
Piping length from outdoor unit to the farthest indoor unit > 30.5 m [100 ft]:
Use table [B].
Additional
refrigerant
charge
=
Liquid pipe size
Total length of
ø19.05 mm [3/4in]
+
Liquid pipe size
Total length of
ø15.88 mm [5/8in]
+
Liquid pipe size
Total length of
ø12.7 mm [1/2in]
[A]
NJ>R]@
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[B]
NJ>R]@
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
+
Liquid pipe size
Total length of
ø9.52 mm [3/8in]
+
Liquid pipe size
Total length of
ø6.35 mm [1/4in]
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
+
Additional charge
+
D
Heat source unit model
Charged amount
Single
P216
1.0kg
P240
1.0kg
<Example>
Indoor 1: 36
A: ø12.7 [1/2in] 40 m [131ft] a: ø9.52 [3/8in] 10 m [32ft]
At the
conditions
below:
2: 30
B: ø9.52 [3/8in]
10 m [32ft] b: ø9.52 [3/8in]
5 m [16ft]
3: 15
C: ø9.52 [3/8in]
15 m [49ft] c: ø6.35 [1/4in]
10 m [32ft]
4: 12
D: ø9.52 [3/8in]
10 m [32ft] d: ø6.35 [1/4in] 10 m [32ft]
5: 24
e: ø9.52 [3/8in] 10 m [32ft]
The total length of each liquid line is as follows:
ø12.7 [1/2in]: A = 40 m [131ft]
ø9.52 [3/8in]: B + C + D + a + b + e = 10 [32] + 15 [49] + 10 [32] + 10 [32] + 5 [16]
+ 10 [32] = 60m [193ft]
ø6.35 [1/4in]: c + d = 10 [32] + 10 [32] = 20 m [64ft]
Therefore, additional refrigerant charge
= 40m [131ft] × 0.11 kg/m [1.19 oz/ft] + 60 [193ft] × 0.054 kg/m [0.59 oz/ft]
+ 20 [64 ft] × 0.021 kg/m [0.23 oz/ft] + 3.0 kg [106 oz] = 11.1 kg [392 oz]
9DOXHRIĮ
Total capacity of connecting indoor units
D
Models
~
27
2.0 kg [71 oz]
Models
28 ~
54
2.5 kg [89 oz]
Models
55 ~ 126
3.0 kg [106 oz]
Models 127 ~ 144
3.5 kg [124 oz]
Models 145 ~ 180
4.5 kg [159 oz]
Models 181 ~ 234
5.0 kg [177 oz]
Models 235 ~ 273
6.0 kg [212 oz]
Models 274 ~ 307
8.0 kg [283 oz]
Models 308 ~ 342
9.0 kg [318 oz]
Models 343 ~ 411
10.0 kg [353 oz]
Models 412 ~ 480
12.0 kg [424 oz]
Models 481 ~
14.0 kg [494 oz]
)RU345<3ā76/08$<6/08$
<Additional charge>
Piping length from outdoor unit to the farthest indoor unit 30.5 m [100 ft]:
Use table [A].
Piping length from outdoor unit to the farthest indoor unit > 30.5 m [100 ft]:
Use table [B].
Additional
refrigerant
charge
=
High-pressure
pipe size
Total length of
ø28.58 mm [1-1/8in]
+
High-pressure
pipe size
Total length of
ø22.2 mm [7/8in]
+
High-pressure
pipe size
Total length of
ø19.05 mm [3/4in]
[A]
NJ>R]@
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[B]
NJ>R]@
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
+
High-pressure
pipe size
Total length of
ø15.88 mm [5/8in]
+
Liquid Piping Size
Total length of
ø15.88 mm [5/8in]
+
Liquid Piping Size
Total length of
ø12.7 mm [1/2in]
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
+
Liquid Piping Size
Total length of
ø9.52 mm [3/8in]
+
Liquid Piping Size
Total length of
ø6.35 mm [1/4in]
[A]
PîNJP
IWîR]IW
[A]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
[B]
PîNJP
IWîR]IW
+
Additional charge
Heat source unit model
Charged amount
Single
P216
1.0kg
P240
1.0kg
+
BC controller
6WDQGDUG0DLQ
+
BC controller
6XE7RWDO8QLWV
BC controller
6XE3HU8QLW
3.0kg [106oz]
1
1.0kg [36oz]
2
2.0kg [71oz]
+
Total Capacity of
Connected Indoor Units
Per Indoor Unit
Models
~ 27
2.0 kg [71 oz]
Models
28 ~ 54
2.5 kg [89 oz]
Models
55 ~ 126
3.0 kg [106 oz]
Models 127 ~ 144
3.5 kg [124 oz]
Models 145 ~ 180
4.5 kg [159 oz]
Models 181 ~ 234
5.0 kg [177 oz]
Models 235 ~ 273
6.0 kg [212 oz]
Models 274 ~ 307
8.0 kg [283 oz]
Models 308 ~ 342
9.0 kg [318 oz]
Models 343 ~ 411
10.0 kg [353 oz]
Models 412 ~
12.0 kg [424 oz]
<Example>
Indoor 1: 30
A: ø28.58 [1-1/8]
40 m [131ft] a: ø9.52 [3/8]
10 m [32ft]
At the
conditions
below:
2: 96
B: ø9.52 [3/8]
10 m [32ft]
b: ø9.52 [3/8]
5 m [16ft]
3: 12
C: ø9.52 [3/8]
20 m [64ft]
c: ø6.35 [1/4]
5 m [16ft]
4: 15
D: ø9.52 [3/8]
5 m [16ft]
d: ø6.35 [1/4]
10 m [32ft]
5: 12
E: ø9.52 [3/8]
5 m [16ft]
e: ø6.35 [1/4]
5 m [16ft]
6: 24
F: ø22.2 [7/8]
3 m [9ft]
f: ø9.52 [3/8]
5 m [16ft]
G: ø19.05 [3/4]
1 m [3ft]
The total length of each liquid line is as follows:
ø28.58 [1-1/8in]: A = 40 m [131ft]
ø22.2 [7/8in]: F = 3 m [9ft]
ø19.05 [3/4in]: G = 1 m [3ft]
ø9.52 [3/8in]: C + D + E + a + b + f = 50 m [164ft]
ø6.35 [1/4in]: c + d + e = 20 m [64ft]
Therefore, additional refrigerant charge
= 40m
[131ft]
u
0.33 kg/m [3.55 oz/ft] + 3 m [9 ft]
u
0.21 kg/m [2.26 oz/ft]
+ 1 [3ft]
u
0.14 kg/m [1.51 oz/ft] + 50m [164ft]
u
0.054 kg/m [0.59 oz/ft]
+ 20 m [64ft]
u
0.021 kg/m [0.23 oz/ft] + 3.0 kg [106 oz] + 2.0 kg [71 oz]
+ 5.0 kg [177 oz]
= 27.1 kg [956 oz]
10. Additional refrigerant charge
At the time of shipping, the heat source unit is charged with refrigerant.
This charge does not include the total amount necessary for extended piping
lengths, so an additional charge of each refrigerant line will be required on
site. Always keep a record of the size and length of each refrigerant line and
the amount of additional charge by writing it in the space provided on the heat
source unit for future reference.
10.1. Calculation of additional refrigerant
charge
Calculate the amount of additional charge based on extended piping lengths
and the refrigerant line size.
Use the table below as a guide for calculating the amount of additional
charge and then charge the system accordingly.
If the calculation results in a fraction of less than 0.1 kg [4oz], round up to the
next 0.1 kg [4oz]. For example, if the result of the calculation was 28.73 kg
[1014oz], round the result up to 28.8 kg [1016oz].
Summary of Contents for CITY MULTI PQHY-P-TLMU-A
Page 55: ......
