Mitsubishi Electric PUHY-P120YHMU-A, Service Manual

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[
II
Restrictions ]
- 19 - HWE0804A GB
2) Remote controller wiring
*1 MA remote controller refers to MA remote controller (PAR-20MAA, PAR-21MAA), MA simple remote controller, and
wireless remote controller.
*2 M-NET remote controller refers to ME remote controller and ME simple remote controller.
*3 The use of cables that are smaller than 0.75mm
2
(AWG18) is recommended for easy handling.
*4 When connected to the terminal block on the Simple remote controller, use cables that meet the cable size specifi-
cations shown in the parenthesis.
[3] Switch Settings and Address Settings
1. Switch setting
Refer to section "[5] An Example of a System to which an MA Remote Controller is connected - [7] An Example of a System
to which both MA Remote Controller and M-NET Remote Controller are connected" before performing wiring work.
Set the switches while the power is turned off.
If the switch settings are changed while the unit is being powered, those changes will not take effect, and the unit will not
function properly.
*1. Applicable when LOSSNAY units are connected to the indoor-outdoor transmission line.
*2. The outdoor units in the same refrigerant circuit are automatically 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).
*3. Turn off the power to all the outdoor units in the same refrigerant circuit.
MA remote controller
*1
M-NET remote controller
*2
Cable type
Type CVV CVV
Number of
cores
2-core cable 2-core cable
Cable size
0.3 to 1.25mm
2 *3
[AWG22 to 16]
(0.75 to 1.25mm
2
)
*4
[AWG18 to 16]
0.3 to 1.25mm
2 *3
[AWG22 to 16]
(0.75 to 1.25mm
2
)
*4
[AWG18 to 16]
Maximum overall line
length
200 m [656ft] max.
The section of the cable that exceeds 10m
[32ft] must be included in the maximum in-
door-outdoor transmission line distance.
Units on which to set the switches Symbol Units to which the power must be shut off
CITY MULTI indoor unit Main/sub unit IC Outdoor units
*3
and Indoor units
LOSSNAY, OA processing unit
*1
LC Outdoor units
*3
and LOSSNAY
Air handling kit IC Outdoor units
*3
or field supplied air handling
unit
M-NET remote controller Main/sub remote
controller RC Outdoor units
*3
MA remote controller Main/sub remote
controller MA Indoor units
CITY MULTI outdoor unit
*2
OC,OS1,OS2 Outdoor units
*3