Introduction - Panasonic U-120ME2U9 Service Manual

1. Introduction

1. Introduction

1. Introduction
The ME2U series outdoor units for USA is a system that allows multiple outdoor units to be connected.
All the outdoor units do not utilize the sub units that were used in earlier systems.
The O/U.ADD of outdoor unit PCB where the unit is set to "1" becomes the main unit and activates
as the CCU (command controller unit) functions that controls the entire system.
PCB Setting of Outdoor Unit
In order to determine the outdoor unit to be the main or sub unit, it is necessary to make settings at each PCB.
Main outdoor unit
The outdoor unit where the O/U.ADD is set to "1" activates the CCU (command controller unit) functions that
controls the entire system. This outdoor unit is the main outdoor unit.
1
* For the main outdoor unit, perform all the settings in the table (PCB setting of outdoor unit) below.
Sub outdoor unit
The outdoor unit where the unit No. is set to other than "1" is a sub outdoor unit.
* The system will not operate if outdoor units have been set other than unit No. "1".
2
PCB Setting of Outdoor Unit
3
O/U.ADD [SW5]
R.C.ADD [SW1, SW2]
4
NO.OF I/U [SW3, SW4]
NO.OF O/U [SW6]
5 * This system can be exteded to connect a maximum of 3 outdoor units.
6
7
8
9
Factory
preset
mode
Outdoor units address
System address
No. of indoor units
No. of outdoor units
1 - 2
Main outdoor unit
On-site setting
1 1
1 System 1 ~ 30
1 System 1 ~ 64 units
1 System 1 ~ 3 units
2WAY VRF SYSTEM
2WAY VRF SYSTEM
Control Functions
Control Functions
Sub outdoor unit
On-site setting
Setting other than 1
(Duplication prohibited)
Not necessary
Not necessary
Not necessary