indoor Unit Capacity (HP)
0.4 - 1.0 1.5 - 6.0
additional refrigerant Charge (kg)
0.3
0.5
!
C a U t i o n
Only for Heat Recovery System, maximum additional refrigerant charge must not exceed 6.0kg.
number of indoor units x (0.3kg/unit or 0.5kg/unit) =
≤6.0kg
W3
Additional refrigerant charge calculation for indoor unit (W3 kg)
Additional refrigerant charge is 1kg/unit of 8HP and 10HP indoor unit and 2kg/unit of 16 and 20 HP.
Additional refrigerant charge of less than 8HP indoor units is not needed.
-
8 and 10HP Total Indoor Unit Numbers Additional Charge
number of 8 and 10 HP indoor units× 1.0kg/unit =
-
16 and 20HP Total Indoor Unit Numbers Additional Charge
number of 16 and 20 HP indoor units× 2.0kg/unit =
W4
The ratio of indoor unit connection capacity (indoor unit total capacity/outdoor unit capacity) = additional charge (W4 kg).
Determine the ratio of indoor unit connection capacity.
Condition
Refrigerant
amount
• IU Capacity Ratio is ≤ 100%:
0.0kg
• IU Capacity Ratio is ≥ 100%:
0.5kg
W5
Depending on outdoor unit combination model, additional refrigerant charge is required. Select adequate refrigerant charge from the
table below. (W5 kg)
outdoor Unit model
ras-24fsXnse
ras-38fsXnse
ras-42fsXnse
ras-46fsXnse
ras-48fsXnse
ras-56fsXnse
ras-60fsXnse
ras-64fsXnse
ras-68fsXnse
ras-74fsXnse
ras-78fsXnse
ras-62fsXnse
ras-66fsXnse
ras-70fsXnse
ras-80fsXnse
ras-82fsXnse
ras-84fsXnse
ras-92fsXnse
ras-72fsXnse
ras-86fsXnse
ras-88fsXnse
ras-90fsXnse
ras-94fsXnse
ras-96fsXnse
additional refrigerant
Charge (kg)
1.0
2.0
1.0
2.0
3.0
4.0
W6
Additional Refrigerant Charge Quantity for Each CH-Box (Multiple Branch Type) Connected (W6 kg) (Heat recovery systems only)
If CH-Boxes (multiple branch type) are connected, additional refrigerant charge is required. Select adequate refrigerant charge from
the table below.
CH-Box model
CH-aP04mssX
CH-aP08mssX
CH-aP12mssX
CH-aP16mssX
additional refrigerant Charge (kg)
0.1
0.2
0.3
0.4
W
Calculation of additional charge (W kg) = W1 + W2 + W3 +W4 + W5 (Only Heat pump)
Calculation of additional charge (W kg) = W1 + W2 + W3 +W4 + W5 + W6 (Only Heat Recovery)
PIPING WORK AND REFRIGERANT CHARGE
PMML0479 rev.4 - 11/2018
32
Summary of Contents for RAS-10FSXNPE
Page 2: ......
Page 14: ... i RAS 8 12 FSXNSE 1725 959 784 B A ...
Page 15: ... RAS 14FSXNSE 1725 1219 784 B A ...
Page 16: ... RAS 16 18 FSXNSE 1725 1219 784 B A ...
Page 17: ... RAS 20 24 FSXNSE 1725 1609 784 B A ...
Page 18: ... RAS 5 6 FSXNPE 1725 959 784 A B ...
Page 19: ... RAS 8 14 FSXNPE 1725 1219 784 A B ...
Page 20: ... RAS 16 18 FSXNPE 1725 1609 784 A B ...
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