Before Installation - Mitsubishi Electric MAC-397IF-E Manuel D'installation

2. Before Installation

2.1. How to Use the MA & CONTACT Terminal Interface
■ Functions
Centralized control (Fig. 2-1)
You can turn multiple air conditioners on and off from one location. (MAC-821SC-E (8-Room))
Use as wired remote controller (Fig. 2-2)
You can use the MA remote controller as a wired remote controller. (PAR-21MAA)
Remote control (Fig. 2-3)
You can turn on and off an air conditioner from a remote location by connecting the ON/OFF contact point.
Status indicator output (Fig. 2-4)
You can control the operation of the relay with either of the on/off or error/ok status output signals.
■ Sample System Configuration
Fig. 2-1
Fig. 2-3
2
4
Fig. 2-2
6
5 7
Fig. 2-4
1 Centralized controller
(MAC-821SC-E)
2 MA & CONTACT
Terminal Interface
3 Indoor Unit
* A separate AC power supply is required for centralized
controller.
3
2
3
4 MA remote controller
5 Contact point
6 Relay
7 Coil
8 Breaker
3