INSTALLATION OF UNIT
ENGLISH
21
WARNING
• Ground Lines to the product are
required for preventing electrical shock
accident during current leakage,
Transmission disorder by noise effect
and motor current leakage (without
connection to pipe).
!
• After the confirmation of the above
conditions, prepare the wiring as follows.
1. Never fail to have an individual power
circuit specifically for the air conditioner.
As for the method of wiring, be guided
by the circuit diagram posted on the
inside of control cover.
2. Firmly tighten the terminal screws to
prevent them loosening. After
tightening, pull the wires lightly to
confirm that they do not move. (If they
are loose the unit, the unit will not
operate normally or it can cause burn-out
of the wires.)
3. Specification of power source.
4. Confirm that electrical capacity is
sufficient.
5. See to that the starting voltage is
maintained at more than 90 percent of
the rated voltage marked on the name
plate.
6. Confirm that the cable thickness is as
specified in the power source
specification.
(Particularly note the relation between
cable length and thickness.
7. Do not install an earth leakage circuit
breaker in a wet or moist area.
CAUTION
!
8. The following would be caused by
voltage drop.
- Vibration of a magnetic switch, which
will damage the contact point, fuse
breaking, disturbance of the normal
function of the overload.
9. The means for disconnection from a
power supply shall be incorporated in
the fixed wiring and have an air gap
contact separation of at least 3mm in
each active(phase) conductors.
Figure 7
For more than 3 conductors in a raceway or
cable, see the N.E.C. for de-rating the ampac-
ity of each conductor.
GROUNDING:
THE UNIT MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL
CODES AND THE NATIONAL ELECTRICAL
CODE.
NOTE
!
• After completion of wiring, check all
electrical connections, including factory
wiring within the unit, and ensure all
connections are tight. Replace and se-
cure all electrical box covers and access
doors before leaving unit or connecting
power to circuit supplying unit.
Emergency Shut Down
For Emergency Shut Down, remove the
jumper between 1 and 2 and install normally
closed contacts (Open at Fault Condition). Im-
mediate shut down will occur and the MAIN
CONTROLLER will be disabled.
Factory Installed
Jumper
Field Suppllied
Emergency
Stop Device
Filler
Terminal 1
Remove this conductor when
connecting emergency stop device.
1
2
3
4
5
1
2
3
4
5
NOTE
!
• To stop unit operation in case of fire, re-
move the jumper between terminals 1
and 2. Refer to the unit wiring diagram.
Summary of Contents for LK-C1208C02
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