Mitsubishi KXZ Series - Page 136

-
134
-
'20 • KX-T-373
•
13.1 kW × 0.97
Capacity compensation coefficient according to height difference: 0.97 (calculated according to 15 m difference); (See page 138)
.
=
.
12.7 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: 12.7 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 FDC140KXZES1-W.............................................. 1 Unit
• Indoor unit FDT56KXZE1-W..................................................... 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:
0.97 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 135)
Indoor unit cooling capacity: 5.6 kW × 0.97
.
=
.
5.4 kW
• Indoor unit total cooling capacity calculation;
indoor unit total cooling capacity: 5.4 kW × 3 units
.
=
.
16.2 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:
0.97 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 135)
Outdoor unit cooling capacity: 14.0 kW × 0.97
.
=
.
13.6 kW
• Capacity compensation coefficient according to piping length: 0.918 (calculated according to 60 m length); (See page 137
)
13.6 kW × 0.918
.
=
.
.
=
.
12.5 kW
• Capacity compensation coefficient according to height difference: 1.0 (the outdoor unit is higher during cooling)
No compensation
•
12.5 kW × 1.04
Capacity compensation coefficient according to indoor unit connected total capacity: 1.04 , (56 × 3) / 140 = 120%) (See page 138)
13.0 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 : 16.2 kW
• Outdoor unit maximum cooling capacity : 13.0 kW
e System cooling capacity: 13.0 kW
<Indoor unit cooling capacity Compensation>: Item (2) (d) calculation.
13.0 kW × 5.4 kW
4.3 kW
16.2 kW
Example 3
Heating (when the indoor unit connected total capacity is 100% or higher)
• Outdoor unit FDC140KXZES1-W.............................................. 1 Unit
• Indoor unit FDT56KXZE1-W ..................................................... 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:
0.98 (Calculated according to Outdoor 6˚C WB / Indoor 19˚C DB); (See page 136)
Indoor unit heating capacity: 6.3 kW × 0.98
.
=
.
6.2 kW
• Indoor unit total heating capacity calculation;
indoor unit total heating capacity: 6.2 kW × 3 units =
18.6 kW
.
=
.