En-12
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.
Controller PCB
Cable tie (Medium) (Accessories)
Bind with the transmission and remote
controller cables.
CAUTION
To protect the cable insulation after opening a knockout hole, remove any burrs from the
edge of the hole.
6.7 Remote sensor (optional parts)
Connection terminals
Remote sensor terminal (CN8)
Controller
PCB
Wiring arrangement
Controller PCB
Cable tie (Medium) (Accessories)
Bind with the transmission and remote
controller cables.
• Remove the existing connector and replace it with the remote sensor connector (ensure that
the correct connector is used).
• The original connector should be insulated to ensure that it does not come into contact
with other electrical circuitry.
• Use conduit hole when external output cable is used.
CAUTION
To protect the cable insulation after opening a knockout hole, remove any burrs from the
edge of the hole.
Setting for room temperature correction
When a remote sensor is connected, set the function setting of indoor unit as indicated
below.
• Function Number “30”:
Set the Setting Number to “00”. (Default)
• Function Number “31”:
Set the Setting Number to “02”.
* Refer to “7.3. Function setting” for details about Function Number and Setting Number
6.8 IR receiver unit (optional parts)
For the installation method, please refer to the installation manual of IR receiver unit.
Connection terminals
IR receiver unit
terminal (CN18)
Controller
PCB
Wiring arrangement
Controller PCB
Cable tie (Medium) (Accessories)
Bind with the transmission and remote
controller cables.
• Use 7 pins for receiver unit cable.
• At
fi
rst, connect the receiver unit cable to the controller PCB.
• Attach the core that comes between controller PCB and the clamp.
• Use conduit hole when external output cable is used.
CAUTION
To protect the cable insulation after opening a knockout hole, remove any burrs from the
edge of the hole.
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.
