Mitsubishi Electric PUMY-P125VMA1 Technical & Service Manual page 80

10-4. SYSTEM SWITCH SETTING
In order to identify the destinations of signals to the outdoor units, indoor units, and remote controller of the MULTI-S
series, each microprocessor must be assigned an identification number (address). The addresses of outdoor units, indoor
units, and remote controller must be set using their settings switches. Please consult the installation manual that comes with
each unit for detailed information on setting procedures.
10-5. EXAMPLE EXTERNAL WIRING DIAGRAM FOR A BASIC SYSTEM
10-5-1. Example using a M-NET remote controller
circuit breaker
L1,L2,L3
Power supply
3 phase 4 wire.
50Hz 380-400-415V
N
15A circuit breaker
Power supply
Single phase.
50Hz 220-230-240V
[1.6mm
10-6. METHOD FOR OBTAINING ELECTRICAL CHARACTERISTICS WHEN A CAPACITY
AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY
The electrical characteristics of connected indoor unit system for air conditioning systems, including the MULTI-S
series, will depend on the arrangement of the indoor and outdoor units.
First read the data on the selected indoor and outdoor units and then use the following formulas to calculate the electrical
characteristics before applying for a capacity agreement with the local electric power company.
10-6-1. Obtaining the electrical characteristics of a MULTI-S series system
(1)Procedure for obtaining total power consumption
Total power consumption of each indoor unit
1 power consumption of outdoor unit
Total power consumption of system
1 Please note that the power consumption of the outdoor unit will vary depends on the total capacity of the selected
indoor units.
(2)Method of obtaining total current
Total current through each indoor unit
2
current through
Total
current through
2 Please note that the
(3) Method of obtaining system power factor
Use the following formula and the total power and current obtained in parts 1 and 2 on the previous page to calculate the
system power factor.
System power factor =
10-6-2. Applying to an electric power company for power and total current
Calculations should be performed separately for heating and cooling employing the same methods; use the largest
resulting value in your application to the electric power company.
Outdoor
unit
Junction box
2
1.25mm 2
2
[1.6mm 2
Indoor unit
2
0.5~0.75mm 2
Page numbers in this technical manual Power consumption
See the technical manual of each indoor unit
Standard capacity table—page 11-14
See the technical manual of each indoor unit
Page numbers in this technical manual
See the technical manual of each indoor unit
outdoor unit
Standard capacity table—page 11-14
See the technical manual of each indoor unit
system
the outdoor unit will vary depending on the total capacity of the selected indoor units.
current through
(Total system power consumption)
(Total system current x voltage)
Grounded
Remote controller wire
80
Group operation
1
2
1+2 <kW>
Subtotal
1
2
1+2 <A>
o 100%