Mitsubishi Electric R410A Service Handbook page 28

[2-2 Types and Maximum Allowable Length of Cables ]
Types and maximum allowable length of cables
Control lines are categorized into 2 types: transmission line and remote controller line.
Use the appropriate type of cables and observe the maximum allowable length specified for a given system. If a given system
has a long transmission line or if a noise source is located near the unit, place the unit away from the noise source to reduce
noise interference.
1) M-NET transmission line
Facility
type
Type
Cable type
Number of
cores
Cable size
Maximum transmission
line distance between the
outdoor unit and the far-
thest indoor unit
Maximum transmission
line distance for central-
ized control and Indoor/
outdoor transmission line
(Maximum line distance
via outdoor unit)
2) Remote controller wiring
Type
Number of
cores
Cable type
Cable size
Maximum overall line
length
*1 MA remote controller refers to MA remote controller (PAR-20MAU, PAR-21MAAU, PAR-30MAAU), Simple MA Re-
mote Controller (PAC-YT53CRAU), and wireless remote controller.
*2 The use of cables that are smaller than 0.75mm
*3 When connected to the terminal block on the Simple remote controller, use cables that meet the cable size specifi-
cations shown in the parenthesis.
*4 When connecting PAR-30MAAU, use a 0.3mm
*5 ME remote controller refers to ME remote controller and Simple ME Remote Controller.
HWE14080
Shielded cable CVVS, CPEVS, MVVS
2
1.25mm
500 m [1640ft] max.
*The maximum overall line length from the power supply unit on the transmission lines for
centralized control to each outdoor unit or to the system controller is 200m [656ft] max.
MA remote controller
CVV
2-core cable
2 *2 *4
0.3 to 1.25mm
[AWG22 to 16]
2 *3
(0.75 to 1.25mm ) [AWG18 to 16]
200 m [656ft] max.
2
(AWG18) is recommended for easy handling.
2
sheathed cable.
- 19 -
All facility types
2-core cable
[AWG16] or more or ø1.2mm or more
200 m [656ft] max.
*1
ME remote controller
CVV
2-core cable
2 *2
0.3 to 1.25mm
[AWG22 to 16]
(0.75 to 1.25mm
The section of the cable that exceeds 10m
[32ft] must be included in the maximum in-
door-outdoor transmission line distance.
*5
2 *3
) [AWG18 to 16]
GB