-
107
-
• Capacity compensation coefficient according to height difference: 0.97 (calculated according to 15 m difference); (See page 111)
12.4 kW × 0.97
.
=
.
12.0 kW
• Capacity compensation coefficient according to indoor unit connected total capacity: 1.0 , (56 × 2) / 140 < 100%)
No compensation
<System cooling capacity>: Item (2) (c) calculation
Compare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity. The smaller value is the actual
system cooling capacity.
• Indoor unit total cooling capacity: 11.4 kW
• Outdoor unit maximum cooling capacity: 12.0 kW
e
System cooling capacity: 11.4 kW
<Indoor unit capacity compensation> No compensation (5.7 kW)
Example 2
Cooling (when the indoor unit connected total capacity is 100% or higher)
• Outdoor unit FDC140KXES6 ..................................................... 1 Unit
• Indoor unit FDT56KXE6 ............................................................ 3 Units
• Piping length ............................................................................... 60 m (Equivalent length)
• Indoor, outdoor unit height difference ........................................ 15 m (Outdoor unit is higher)
• Temperature conditions ............................................................... Outdoor temperature: 35°C DB
• Temperature conditions ............................................................... Indoor temperature: 18°C WB
<Indoor unit total cooling capacity>: Item (2) (a) calculation.
• Indoor unit rated cooling capacity: 5.6 kW
• Capacity compensation coefficient according to temperature conditions:
0.95 (Calculated according to Indoor 18ËšC WB / Outdoor 35ËšC DB); (See page 108)
Indoor unit cooling capacity: 5.6 kW × 0.95
.
=
.
5.3 kW
• Indoor unit total cooling capacity calculation;
indoor unit total cooling capacity: 5.3 kW × 3 units
.
=
.
15.9 kW
<Outdoor unit maximum cooling capacity> : Item (2) (b) calculation
• Outdoor unit rated cooling capacity: 14.0 kW
• Capacity compensation coefficient according to temperature conditions:
0.95 (Calculated according to Indoor 18ËšC WB / Outdoor 35ËšC DB); (See page 108)
Outdoor unit cooling capacity: 14.0 kW × 0.95
.
=
.
13.3 kW
• Capacity compensation coefficient according to piping length: 0.87 (calculated according to 60 m length); (See page 110)
13.3 kW × 0.87
.
=
.
11.6 kW
• Capacity compensation coefficient according to height difference: 1.0 (the outdoor unit is higher during cooling)
No compensation
• Capacity compensation coefficient according to indoor unit connected total capacity: 1.02 , (56 × 3) / 140 = 120%) (See page 112)
11.6 kW × 1.02
.
=
.
11.8 kW
<System cooling capacity>: Item (2) (c) calculation
Compare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity. The smaller value is the actual
system cooling capacity.
• Indoor unit total cooling capacity : 15.9 kW
• Outdoor unit maximum cooling capacity : 11.8 kW
e System cooling capacity: 11.8 kW
<Indoor unit cooling capacity Compensation>: Item (2) (d) calculation.
11.8 kW × 5.3 kW
3.9 kW
15.9 kW
Example 3
Heating (when the indoor unit connected total capacity is 100% or higher)
• Outdoor unit FDC140KXES6 ..................................................... 1 Unit
• Indoor unit FDT56KXE6 ............................................................ 3 Units
• Piping length ............................................................................... 60 m (Equivalent length)
• Indoor, outdoor unit height difference ........................................ 20 m (Outdoor unit is higher)
• Temperature conditions ............................................................... Outdoor temperature: 6˚C WB
• Temperature conditions ............................................................... Indoor temperature: 19˚C DB
<Indoor unit total heating capacity>: Item (2) (a) calculation.
• Indoor unit rated heating capacity:6.3 kW
• Capacity compensation coefficient according to temprature conditions:
1.04 (Calculated according to Outdoor 6ËšC WB / Indoor 19ËšC DB); (See page 109)
Indoor unit heating capacity: 6.3 kW × 1.04
.
=
.
6.6 kW
• Indoor unit total heating capacity calculation;
indoor unit total heating capacity: 6.6 kW × 3 units
.
=
.
19.8 kW
.
=
.
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