Daikin RZQ20LCVAK, Installation Manual

Page: 83 / 124

English 22
9. ELECTRICAL WIRING WORK
〈
CAUTION
〉
To the electrician
Install the earth leakage breaker which can handle harmonics.
(This unit has an inverter, so an interrupter capable of handling harmonics is needed to prevent malfunction
of the interrupter itself.)
Do not run the unit until the refrigerant charging is complete.
(Operating the unit before the completion will break the compressor.)
Do not remove the thermistors or sensors when the power cord and wiring between units are
connected.
(Operating the unit with the thermistors and sensors removed will break the compressor.)
The electrical work must be performed using the dedicated circuit by the personnel with qualification
for electrical work, in accordance with the national law and installation manual.
•
The wiring between the indoor unit and outdoor unit must be for 230V.
•
The electrical wiring work should be done in accordance with the Electrical Wiring Diagram Label.
•
When doing the electrical wiring, always shut off the power source before working, and do not turn on the
branch switch until all work is complete.
•
By installing the earth leakage breaker, a protective earth resistance value of 500 ohms is applied.
•
Do not let the earth wire should come in contact with gas pipes, water pipes, lighting rods, or telephone
earth wires.
· Gas piping: there is a hazard of explosion and fire if refrigerant leaks.
· Water piping: cannot be grounded if hardened plastic pipes are used.
· Telephone earth and lightning rods: the earth potential when struck by lightning gets extremely high.
· The earth is needed in order to reduce the noise generated by the unit’s inverter and influence on other
appliances and to release the charge built up in the product box by leaked current.
•
Never attach a phase advancing capacitor for improving the power factor. (Not only will this not improve the
power factor, but it might cause abnormal heat.)
•
Be sure to use earth leakage breaker dedicated for earth leakage protection in combination with the load
break switch with fuse or breaker for wiring.
•
For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure
being exerted on the terminal board (power supply wiring, transmission wiring, earth wiring).
•
The power wiring should be connected in a positive phase.
•
Left-over wiring should not be wrapped and stuffed into the unit.
•
To prevent the power wiring from being damaged by the knock hole edges, put it in a wiring pipe or use insu-
lated bush to protect it.
•
To prevent the wiring from coming in contact with piping (particularly the high-pressure piping), secure it
with the included clamping material as shown next page.
•
Arrange the electric wiring to avoid detachment of the front panel, and install the front panel correctly during
wiring.
•
Make sure the wiring and the control box lid do not stick up above the structure, and close the cover firmly.
Attach the earth leakage breaker.
The earth leakage breaker is required in order to prevent electric shock and fires.
01_EN_3P281953-1B.fm Page 22 Tu esday, January 25, 2011 3:35 PM