Mitsubishi Electric MAC-333IF-E, Installation Manual

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9
–
+
CN560
TB530
R2
R2
R1
R1 C
+ –
TB571
SW502
SW500
11. Setting Signal Output
■ Connecting the SYSTEM CONTROL Interface
Each relay can be turned ON/OFF by synchronizing with the room air conditioner’s ON/OFF, error/normal, Heater
ON/Heater OFF, and Humidifier ON/Humidifier OFF.
Indoor unit
Interface unit
➊
(Gray) (Sky
Blue)
DC power supply: DC 12V (+10%, -0%) 5W or more. Please use
power supply with double insulation or reinforced insulation.
DC 12V
power
supply
Relay 2
Relay 1
Relay 1, 2:
(Coil rating of DC 12V, 1.0W or
less.) Please use relays with
reinforced insulation.
Screw
driver
Do not insert more than one
connecting cable into each
terminal of TB571 and TB530.
● For TB571 and TB530, insert wiring after inserting the flathead screwdriver into the terminal.
● Appropriate electric wire for TB571 and TB530 is as follows. Stranded wire: 0.3mm
2
to 1.25mm
2
[AWG22 to 16] Solid wire: ø0.4mm to ø1.2mm
[ø1/64in. to ø3/64in.]
● Peeling dimension of the electric wire for TB571 and TB530 is 7mm to 10mm [9/32in. to 25/64in.].
● Wiring length from the interface to Relay 1 and Relay 2 should be less than 50m [164ft.].
■
Setting when using Status Signal Output
Terminal
Notes
• Connecting terminal TB530 for power supply is polarized, so confirm proper polarity of the terminals before connecting.
• Do not connect DC12V from the DC power supply to TB571.
• Confirm polarity when using a diode built-in relay. C of TB571 is electropositive potential , and R1 and R2 are negative potential .
Functions SW No. Operating details
ON/OFF, Error/
Normal Output
SW502-1: OFF
• Relay 1 is on when room air conditioner is on, and off when room air conditioner is off.
• Relay 2 is on when room air conditioner is in error, and off when room air conditioner is operating normally.
SW502-1: ON
• Relay 1 and 2 behavior are opposite of those above.
ON/OFF, Heater
Control Output
SW502
ON
OFF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW500
ON
ON
SW502-1: OFF
• Relay 1 is on when room air conditioner is on, and off when room air conditioner is off.
• When the air conditioner runs in the heating (automatic heating) mode and room temperature becomes the
set temperature - 4.5 ºF (2.5 ºC) or lower, the Relay 2 (heater) turns on.
When the air conditioner runs in a mode other than the heating (automatic heating) or it is OFF, or when
room temperature becomes the set temperature or higher, the Relay 2 (heater) turns off.
SW502-1: ON
• Relay 1 and 2 behavior are opposite of those above.
ON/OFF,
Humidifier Control
Output
SW502
ON
OFF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW500
ON
ON
SW502-1: OFF
• Relay 1 is on when room air conditioner is on, and off when room air conditioner is off.
• When the air conditioner runs in the heating (automatic heating) mode, Relay 2 (humidifier) turns on. When the
air conditioner runs in a mode other than heating (automatic heating) or it is OFF, Relay 2 (humidifier) turns off.
SW502-1: ON
• Relay 1 and 2 behavior are opposite of those above.
Heater Control,
Humidifier Control
Output
SW502
ON
OFF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW500
ON
ON
SW502-1: OFF
• When the air conditioner runs in the heating (automatic heating) mode and room temperature
becomes the set temperature - 4.5 ºF (2.5 ºC) or lower, Relay 1 (heater) turns on. When the air
conditioner runs in a mode other than the heating (automatic heating) or it is OFF, or when room
temperature becomes the set temperature or higher, Relay 1 (heater) turns off.
• When the air conditioner runs in the heating (automatic heating) mode, Relay 2 (humidifier) turns on. When
the air conditioner runs in a mode other than heating (automatic heating) or OFF, Relay 2 (humidifier) turns off.
SW502-1: ON
• Relay 1 and 2 behavior are opposite of those above.
Please use the cable of 0.5mm
2
[AWG20] or more.
The cable must fit into TB530 and meet DC12V power supply.
SW502
ON
OFF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SW500
ON
ON
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