SiBE811001EB
Test Operation
CONVENI-PACK
48
5.1.2 Additional Refrigerant Charging
This unit requires onsite additional charging of refrigerant. After calculating the amount of refrigerant required, follow the
procedure below to add refrigerant.
(1) How to calculate refrigerant charging amount
The amount of required refrigerant to be added (R) is calculated from a total of "liquid piping portion", "connection unit
portion" and "outdoor unit portion".
∗
Adjust the total amount of refrigerant connected VRV indoor unit to 4.1 kg or less.
Note: For the refrigeration, determine the refrigerant amount after summing up the load.
Cooling/heating total load
Refrigeration showcase
(C1)
Freezer showcase
(C2)
Blower coil
(C3)
Less than 5 kW
1.1 kg
1.4 kg
0.6 kg
Over 5 kW, less than 10 kW
2.3 kg
3.2 kg
1.2 kg
Over 10 kW, less than 15 kW
3.4 kg
5.2 kg
1.7 kg
Over 15 kW, less than 20 kW
4.6 kg
2.3 kg
Over 20 kW, less than 25 kW
5.9 kg
3.0 kg
Over 25 kW, less than 30 kW
7.0 kg
3.5 kg
Over 30 kW, less than 35 kW
8.2 kg
4.1 kg
Over 35 kW, less than 40 kW
9.7 kg
4.9 kg
Over 40 kW
11.0 kg
5.5 kg
P
A
B
C
A
×0.18
×0.12
×0.059
×0.022
B
3.5 kg - according to LRYEQ16AY1
C
( )
( )
( )
( )
(Additional charging amount)
{
"Liquid piping portion"
{
"Outdoor unit portion"
{
"Connection unit portion"
"Liquid piping portion"
"Outdoor unit portion"
"Connection unit portion"
Total
length
of
φ
15.9
liquid
pipe
Refrigeration
showcase (C1)
(Total)
Freezer showcase
(C2)
(Total)
Blower coil
(C3)
(Total)
Each indoor unit
(C4)
Total
length
of
φ
12.7
liquid
pipe
Total
length
of
φ
9.5
liquid
pipe
Total
length
of
φ
6.4
liquid
pipe
=
=
=
=
+
+
+
+
+
+
+
+
Typical model *2
50
63
80
100
125
200
250
HP
Kinds of indoor unit (C4)
2.0
2.5
3.2
4.0
5.0
8.0
10.0
Round-flow cassette type (FXFQ)
0.5
0.9
0.9
0.9
1.0
Sensing-flow cassette type (FXFQ)
∗
1
0.7
0.7
0.9
0.9
1.1
Double-flow cassette type (FXCQ)
0.5
0.7
0.8
1.1
Ceiling mounted corner cassette type (FXKQ)
0.6
Ceiling built-in type (FXSQ)
0.3
0.6
0.5
1.0
1.0
Ceiling mounted duct type (FXMQ)
0.5
0.7
0.7
1.2
1.2
2.1
2.4
Ceiling suspended type (FXHQ)
0.7
0.8
Ceiling suspended cassette type (FXUQ)
0.9
1.1
Concealed floor standing type (FXNQ)
0.8
0.8
Floor standing type (FXLQ)
0.8
0.8
