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DRY CONTACT INSTRUCTION
ORANGE is ON/OFF input
GREEN is ground (GND)
When the Switch is "ON", it means the "OFF" signal
When the Switch is "OFF", it means the "ON" signal
In this mode, when receiving OFF signal, the indoor unit will not stop directly, there is a
customerized time (default 6 mins) delay to prevent start and stop frequently. The Air
conditioner will get into the standby mode, when receive the singnals from the remote
controller, wiring remote controller or emergy button, you will hear 2 beeps and it can't work
until receive the ON signal.
2.2 Mode 2: Use contact with 12VDC + relay
CN29
+12V
DRY
GDN
Air Conditioner
Indoor Unit PCB
BROWN is voltage 12VDC
ORANGE is ON/OFF input
GREEN is ground (GND)
When the Relay is "ON", it means the "OFF" singnal
When the Relay is "OFF", it means the "ON" singnal
In this mode, when receiving OFF signal, the indoor unit will not stop directly, there is a there is
a customerized time (default 6 mins) delay to prevent start and stop frequently. The Air
conditioner will get into the standby mode, when receive the singnals from the remote
controller, wiring remote controller or emergy button, you will hear 2 beeps and it can't work
until receive the ON signal.
3. Installation
3.1 Cut off the power and open the front panel of indoor unit.
3.2 Use a screwdriver, open the electric box cover, and unscrew the cable clamp.
3.3 Find the cables marked DRY CONTACT.
CN29
Brown
+12V
Orange
DRY
Green
GDN
Air Conditioner
Indoor Unit PCB
DRY CONTACT
Brown
Orange
Green
DRY CONTACT
Customer
Circuit
Relay
Contract
the
Relay to Stop the
Air con
Customer Control Unit
8
V.1
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