En-12
Operation behavior
*If function setting "60" is set to "00"
Connector
Output voltage
Status
CNB01
External output1
Pins 1-2
0V
Stop
DC 12 V
Operation
External output2
Pins 1-3
0V
Normal
DC 12 V
Error
External output3
Pins 1-4
0V
Indoor unit fan stop
DC 12 V
Indoor unit fan operation
External output4
Pins 1-5
0 V
External heater OFF
DC 12V
External heater ON
●
Indoor unit fan setting for external heater
Fan setting when turning ON output to the connected external heater can be set by
changing Dip switch on PC board.
Dip switch
[SET2 SW3]
Fan setting when
ON is output to the
external heater
Explanation
OFF
(Factory setting)
OFF
For the fan setting details, see the
Design & Technical Manual.
ON
ON
(3) Connection methods
• Wire modi
fi
cation
Remove insulation from wire attached to wire kit connector.
Remove insulation from
fi
eld supplied cable. Use crimp type insulated butt connector to
join
fi
eld cable and wire kit wire.
Connect the wire with connecting wire with solder.
IMPORTANT:
Be sure to insulate the connection between the wires.
Field supply
Option parts
External input /output wire
Solder and insulate the connected parts.
• Connection terminals and wiring arrangement
In following
fi
gure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
Transmission cable
CNB01
CNA01
CNA03 CNA02 CNA04
Cable tie (Field supply):
Bind to the transmission cable
hook
7. FIELD SETTING
There are 3 methods for address setting by FIELD SETTING as follows.
Set by either of the methods.
Each setting method is described (1) to (3) below.
(1) IU
AD, REF AD SW settings ............. This section (7.1. Setting the address)
(2) Remote controller settings ............... Refer to the wired or wireless remote controller
manual for detailed setting information. (Set IU
AD, REF AD SW to 0)
(3) Automatic address settings ............. Refer to the outdoor unit manual for detailed
setting information. (Set IU AD, REF AD SW to 0)
CAUTION
Be sure to turn OFF the power before performing the
fi
eld setting.
Do not operate any switches other than prescribed, as it can cause the unit to operate
improperly or malfunction.
Use an insulated screwdriver to set the DIP switches.
7.1. Setting the address
• Remove the cover referring to the below Fig. A. Fix the cover after addressing setting.
Fig. A
Screw
Cover
Rotary switch
Example: “0”
Rotary switch Example: “0”
Setting
Setting range
Type of switch
Indoor unit
address
0 to 63
Setting
example 2
IU AD × 10
IU AD × 1
Refrigerant
circuit address
0 to 99
Setting
example
63
REF AD × 10
REF AD × 1
(1) Indoor unit address
Rotary switch (IU AD × 1)...Factory setting “0”
Rotary switch (IU AD × 10)...Factory setting “0”
When connecting multiple indoor units to 1 refrigerant system, set the address at IU
AD SW as shown in the Table A.
(2) Refrigerant circuit address
Rotary switch (IU AD × 1)...Factory setting “0”
Rotary switch (IU AD × 10)...Factory setting “0”
In the case of multiple refrigerant systems, set REF AD SW as shown in the Table
A for each refrigerant system.
Set to the same refrigerant circuit address as the outdoor unit.
• If working in an environment where the wireless remote controller can be used, the
addresses can also be set using the remote controller.
• If setting the addresses using the wireless remote controller, set the indoor unit
address and refrigerant circuit address to “00”.
(For information on setting using the wireless remote controller.)
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