Switch Settings And Address Settings - Mitsubishi Electric CMB-PW202V-J Service Handbook

[ II Restrictions ]

[2] Switch Settings and Address Settings

1. Switch setting
The need for switch settings depends on the system configuration. Read section "[3] An Example of a System to which an MA
Remote Controller is 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.
Units on which to set the switches
CITY MULTI indoor unit
LOSSNAY, OA processing unit
ME remote controller
MA remote controller
CITY MULTI outdoor unit
WCB
*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 and OS 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.
*4. The symbol of WCB is the same as that of BC controller.
2. M-NET Address settings
WCB address setting is the same way as the main BC controller.
HWE09070
Main/sub unit
*1
Main/sub remote
controller
Main/sub remote
controller
*2
Symbol Units to which the power must be shut off
IC Outdoor units
LC Outdoor units
RC Outdoor units
MA Indoor units
OC,OS Outdoor units
BC*4 Outdoor units
- 18 -
*3
and Indoor units
*3
and LOSSNAY
*3
*3
*3
and WCB
GB