Address Setting - Toshiba MCY-MUG0401HSW-E Installation Manual

◆Communication wire connection
Connect the communication wires to the communication wire terminals from under the electrical control box.
Uv Uv Uh
Uv Uh
TO INDOOR TO CENTRAL
UNIT CONTROLLER
Screw size and tightening torque
Communication wire terminal
 Regulation of harmonic currents
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to Ssc (*1) at
the interface point between the user's supply and the public system. It is the responsibility of the installer or user of the
equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only
to a supply with a short-circuit power Ssc greater than or equal to Ssc (*1).
Furthermore, when similar equipment or other equipment which may cause harmonic current emissions are to be connected
to the same interface point with this equipment, to reduce the risk of possible problems which may be caused from addition of
those harmonic current emissions, it is recommended to make sure that the short-circuit power Ssc at the interface point is
greater than the sum of the minimum Ssc required by all the equipment which will be connected to the interface point.
Ssc (*1)
Model
MCY-MUG0401HSW-E
MCY-MUG0501HSW-E
MCY-MUG0601HSW-E
This unit complies with EN 61000-3-11.
However, the impedance of the power supply system to be connected to the unit at the incoming power point must be less
than the Zmax given below.
In order to meet this condition, consult with the supply authority as required.
Zmax = 0.325 (Ω)
In addition, it is recommended that voltage drops occurring during the unit's operation in the area at the power input shall be
around 3.3% of the nominal power-supply voltage or less.
75-EN
Uh
Uh: Central control device
Uv: Communication wiring between Indoor / Outdoor unit
Tightening torque
Screw size
(N•m)
M4 1.2 to 1.4
Ssc(kVA)
731
8

Address setting

On this unit, it is required to set the addresses of the indoor units before starting air conditioning.
Set the addresses following the steps below.
CAUTION
• Be sure to complete the electric wiring before setting the addresses.
• If you turn on the outdoor unit before turning on the indoor units, the CODE No. [L08] is indicated on the 7-segment
display on the interface P.C. board of the outdoor unit until the indoor units are turned on. This is not a malfunction.
• It may take up to ten minutes (normally about five minutes) to address one refrigerant line automatically.
• Settings on the outdoor unit are required for automatic addressing. (Address setting is not started simply by turning
on the power.)
• Running the unit is not required for address setting.
1.
Follow the steps below to set the DIP switch on the outdoor unit interface P.C. board.
1-1.Outdoor unit setting
Interface P.C. board on the outdoor unit
SW100
ON
↑
1 2
1-2.Line (system) address setting
For the central control among two or more refrigerant lines or group control among two or more refrigerant lines,
set the line (system) address.
(Example) Controlling a single refrigerant line centrally
Outdoor
Central
controller
System wiring
Indoor Indoor
diagram
Remote
Remote
controller controller
Line (system)
address setting
– 38 –
Controlling 2 or more refrigerant lines centrally
Outdoor Outdoor Outdoor
Central
controller
Indoor Indoor Indoor Indoor
Remote Remote Remote Remote
controller controller controller controller
No Set the address
EN
Central
controller
Indoor
Indoor
76-EN