Installation Manual
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EN
EN-51
EN-52
Communication wire connection
Connect the communication wires to the communication wire terminals from under the electrical control box, and fix
them with the communication cable clamps.
Screw size and tightening torque
Screw size
Tightening torque
(N•m)
Communication wire terminal
M4
1.2 to 1.4
U1
U2
U3
U4
U1
U2
U3
U4
CN02
CN10
[U1, U2] and [U3, U4] not connected
Communication
terminal board
TO INDOOR
UNIT
TO CENTRAL
CONTROLLER
U1
U2
U3
U4
CN02
CN10
U1
U2
U3
U4
Communication
terminal board
TO INDOOR
UNIT
TO CENTRAL
CONTROLLER
[U1, U2] and [U3, U4] connected
U3, U4: Central control device
U1, U2: Communication wiring between Indoor / Outdoor unit
Regulation of harmonic current
The equipment is professional-use equipment. So must be installed, maintained, repaired and removed by a
qualified installer or qualified service person.
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
Ssc (kVA)
MCY-MHP0404HS8(J)-E
MCY-MHP0504HS8(J)-E
MCY-MHP0604HS8(J)-E
797
