Daikin Super Multi NX 3MXS-G Series, Engineering Data

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Outdoor Unit EDUS121131
302 Installation Manual
Lock nut
Conduit
Conduit
mounting plate
Knockout hole
Forced Operation
Wiring (1)
1) Turn the Operation Mode switch (SW2) to “COOL.”
2) Press the Forced Operation switch (SW1) to begin forced cooling. Press the Forced Operation switch (SW1) again to
stop forced cooling.
●
Forced operation also stops automatically after 15 minutes from when operation starts.
Service PC-board
Operation Mode
switch (SW2)
Forced Operation
switch (SW1)
1) Do not use spliced wires, stranded wires ( CAUTION (1) ), extension cords, or starburst connections, as they may
cause overheating, electrical shock, or fire. Follow all local, and state electrical codes.
2) Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump,
etc., from the terminal block.) Doing so may cause electric shock or fire.
3) Be sure to install a ground leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used a ground leak detector capable handling harmonics
in order to prevent malfunctioning of the ground leak detector itself.)
4) Use an all-pole disconnection type breaker with at least 1/8” between the contact point gaps.
5) When carrying out wiring connection, take care not to pull at the conduit.
6) Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
WARNING
1) When the protection plate is removed,
do not turn ON the safety breaker.
2) When the service port is operated,
the protection plate must be fixed.
WARNING
<Method of Mounting Conduit>
1) Pass wires through the conduit and
secure them with a lock nut.
2) When connecting indoor units for
three rooms or more, open
knockout holes without deforming
the conduit mounting plate.
By removing the two screws to
remove the conduit mounting plate,
you can work without the plate.
After completing the work, reattach
the conduit mounting plate to its
original position.
<Work before wiring>
A protection plate is fixed for
protection from the high-voltage
section.
Before starting wiring work, remove
the two screws and the protection
plate.
After completing wiring, fix the
protection plate to its original position.
Protection plate
Binding band
Conduit
mounting plate
Protection plate
Screw
Service port