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Multi V Ducted Indoor Units
Due to our policy of continuous product innovation, some specifications may change without notification.
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WIRING
Mid-Static Ducted M1 Chassis
Table 34: M1 Unit Wiring Diagram Legend.
Table 35: M1 Unit DIP Switch Settings.
Terminal Purpose Function
CN-POWER AC Power supply AC Power line
CN-MOTOR1 Fan motor output Motor output of BLDC
CN-DAMPER N / A N / A
CN-ZONE Zone controller Zone controller connection
CN-EXT External on / off controller External on / off Controller connection
CN-EEV EEV Output EEV control output
CN-OPTION Optional PCB EPROM Option PCB connection
CN-DISPLAY Display Display of indoor status
CN-PTC Auxiliary heater Connection for Auxiliary Heater
CN-CC Dry contact Dry Contact connection
CN-HUMID N / A N / A
CN-LEAK Leak detector Leak detector connection
CN-FLOAT Float switch input Float switch sensing
CN-PIPE/OUT Discharge pipe sensor Pipe out thermistor
CN-WF Wi-Fi Wi-Fi module connection
CN-AIRC N / A N / A
CN-PIPE/IN Suction pipe sensor Pipe in thermistor
CN-ROOM Room sensor Room air thermistor
CN-REMO Wired remote controller Wired remote control connection
CN-D/PUMP Drain pump output AC output for drain pump
CN-485 Communication Connection between indoor and outdoor units
*For Gen 4 Multi V ducted indoor units, DIP Switches 1, 2, 6 through 8 must be set to OFF. These DIP switches are used for
other models.
**To enable Generation 4 features, outdoor unit DIP Switch No. 3 must be set to ON. Please refer to the Multi V 5, Multi V Water
IV, Multi V S Engineering Manuals for additional information.
DIP Switch Setting Off On Remarks
SW3 GROUP CONTROL Main Sub
Group control setting using 7-Day Programmable Controller; selects Main /
Sub on each indoor unit
SW4
DRY CONTACT
MODE
Variable Auto
Sets operation mode for optional Dry Contact accessory
1. Variable: Auto or Manual Mode can be set through 7-Day Programmable
Controller or Wireless Remote Controller (factory default setting is Auto if
there is no setting)
2. Auto: For Dry Contact, it is always Auto mode
SW5 CONTINUOUS FAN Off On
Selects continuous fan for ducted indoor units.
1. On: Indoor unit fan will always operate at a set fan speed, except when
the system is off, or the outdoor unit is in defrost mode (when the outdoor
unit is in defrost mode, the fan will operate at super low fan speed)
2. Off: Indoor unit fan speed can be changed by on / off
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