Mitsubishi Electric MAC-397IF-E Manuel D'installation page 8

4.4. Restricting Indoor Unit Operations from the Contact Point
• You can use a coin timer or light switch to ensure that Indoor unit will not operate.
• Connect the supplied lead wires (6) F to the connector CN591 on the interface board.
• Wire the remote control components, including the coin timers or switches, at the installation site.
• Please use extension wires with reinforced insulation.
Indoor unit
* When the contact point is open, the unit will turn off and will not be operable from the remote control.
When the contact point is closed, the unit will turn on and will be operable from the remote control.
Dip switch settings
■ SW500
ON
1 2 3 4 5 6
Setting required
■ SW501 and SW502 do not have to be set.
4.5. Status Signal Output Using the Relay
• You can set the external relay to ON/OFF based on whether the Indoor unit is set to either on/off or error/ok.
• Set up and wire the relay and extension wires at the installation site.
• Please use relays with reinforced insulation.
Indoor unit
8
Interface unit 1
CN560
1 2 3 4 5 6
Lead wires (6) F
7 8
Interface unit 1
TB580
CN560
1 2
Signal wires A at the installa-
tion site.
Coin timer C
CN591
Contact point a
(about 10 mA)
Signal wires A at the
installation site.
100 m max.
A B
Relay C
(coil rating of DC12 V 75 mA or less)
100 m max.