Mitsubishi Heavy Industries FDT45KXE6 User Manual

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101
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(c) Calculation of total operation characteristics
Since the operation characteristics of series Multi-KX depend on combination of indoor unit, calculate the total operation
characteristics of the system by using the formulas below according to specifications of each indoor unit or outdoor unit.
1) Total power consumption
Total power consumption (kW) = Power consumption of outdoor unit + ∑ (Power consumption of indoor unit)
2) Total running current
Total running current (A) = Running current of outdoor unit + [∑ (Running current of indoor unit) × 1/3]
3) Total power factor
Total power factor (%) = [Total power consumption (W) / √
—
3
*
× Total running current (A) × Power source] × 100
Total operation characteristics = Operation characteristic value of outdoor unit + Operation characteristic value of indoor unit
Note (1)* 3phase only
[Example]
(Conditions) Operation Voltage ········ Indoor unit: 220 V, 50 Hz
Outdoor unit: 380 V, 50 Hz
Operation mode ··········· Cooling and Heating
Unit······························· Outdoor unit: FDC112KXES6 × 1 unit
Indoor unit: FDT71KXE6 × 1 units
FDT45KXE6 × 2 units
Item
Models
FDC112KXES6 FDT71KXE6 FDT45KXE6
Operation characteristics of each unit
(Cooling/Heating)
Power consumption (kW)
Running current (A)
2.80/2.89
4.5/4.7
0.10/0.10
0.30/0.30
0.03/0.03
0.20/0.20
q Total power consumption (kW)
(Cooling) 2.80 + (0.10 × 1 + 0.03 × 2)
.
=
.
2.96 (kW)
(Heating) 2.89 + (0.10 × 1 + 0.03 × 2) = 3.05 (kW)
w Total running current (A)
(Cooling) 4.5 + (0.3 × 0.10 + 0.2 × 2) ×
1
.
=
.
4.7 (A)
3
(Heating) 4.7 + (0.3 × 1 + 0.2 × 2) ×
1
.
=. 4.9 (A)
3
e Total power factor (%)
2.96 × 1000
(Cooling)
√
—
3 × 4.7 × 380
× 100
.
=. 96 %
3.05 × 1000
(Heating)
√
—
3 × 4.9 × 380
× 100
.
=. 95 %

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English