Control Cable Specifications; System Configuration - Mitsubishi CITY MULTI PUHY-P-YKB-A1 Serie Manual De Instalación

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10-3. Control cable specifications

・Transmission cable
Type
2-core shielded cable CVVS, CPEVS, or MVVS
Size
1.25 mm
(AWG 16), or ø1.2 mm or above
2
Length
Max. 200 m (656 ft)
The maximum allowable length of transmission cables via outdoor units (both centralized control transmission cables
and indoor-outdoor transmission cables) is 500 m (1640 ft).
Remarks
The maximum allowable length of transmission cables from the power supply unit to each outdoor unit or to the system
controller is 200 m (656 ft).
* Do not use a single multiple-core cable to connect indoor units that belong to different refrigerant systems. The use of a multiple-core cable
may result in signal transmission errors and malfunctions.
* Ensure shield continuity when extending the transmission cable.
・Remote controller cable
Type
Size
0.3–1.25 mm
Max. 10 m (32 ft)
Length
* If the length exceeds 10 m (32 ft), use a 1.25 mm
(AWG 16) shielded cable.

10-4. System configuration

・Unit code and the maximum number of connectable units
Unit type
Main unit
Outdoor unit
Sub unit
Indoor unit
Remote controller
Transmission booster unit
* A transmission booster may be required depending on the number of connected indoor units.
* The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2. The outdoor units are designated as OC,
OS1, and OS2 in the order of capacity from large to small (if two or more units have the same capacity, in the order of address from small to
large).
KD79S703H01
ME remote controller cable
2-core sheathed cable (unshielded) CVV
2
(AWG 22–16) (0.75–1.25 mm
Code
OC
OS1, OS2
IC
1 to 26 units per OC
RC
0 to 2 units per group
RP
0 to 1 unit per OC
MA remote controller cable
2
(AWG 18–16) if a simple remote controller is connected)
Max. 200 m (656 ft)
2
Number of connectable units
GB-37

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