Daikin SkyAir Super Inverter 70 D Series Service Manual page 47

Field Piping and Wiring
WARNING
Electrical wiring must be carried out by qualified personnel.
Before obtainging access to terminal devices, all supply circuits munt be interrupted.
CAUTION
Be sure to ground the air conditioner.
Do not connect the earth wire to a gas pipe, water pipe, lightning conductor or telephone earth wire.
Use only copper wires.
The wiring between the indoor unit and outdoor unit must be for 220V.
Do not turn on the main switch until all the wiring is complated.
The resistance of the grounding must not exceed 500
When performing electrical wiring, refer also to the wiring diagram affixed to the unit.
Use the specified wires and fix them with clamps so that no external forces act on the terminals. For clamp-
ing, push the hook in tail end of the clamp to loosen it, pass the wires through it, then fasten the clamp.
Clamp the wiring as shown below, taking care that the wires do not touch the piping. (especially high-pres-
sure piping)
Never squeeze extra wires into the unit.
When leading out the wires to the front or side, you can use a wire conduit passing through the knock-out
hole ( 34mm). When you don't use a wire conduit, be sure to protect the wires with vinyl tubes etc. to pre-
vent the edge of the knock-out hole from cutting the wires.
Form the wires and fix the cover firmly so that the cover may be fit in properly.
Wiring between units
Forward
Down
Wiring between
units
Insulation tubing
Stop valve
mounting plate
Clamp
Power supply and
ground wiring
When using 71 model
CAUTIONS
As this unit is equipped with an inverter, installing a phase advancing capacitor not only will deteriorate
power factor improvement effect, but also may cause a capacitor abnomal heating accident due to high-fre-
quency waves. Therefore never install a phase advancing capacitor.
keep power imbalance to within 2% of the supply rating.
1. Large imbalance will shorten the life of the smoothing capacitor.
2. As a protective measure, the product will stop operating and an error indication will be made, when
power imbalance exceeds 4% of the supply rating.
When installing the leakage breaker make sure it is an inverter-type (high-frequency/high-freq. non-sensing
type) breaker.
38
VAL Model
Back
Power supply
and ground
wiring
TAL Model
To the side
Ground
Switch box
Clamp (attached)
Wiring
between
units
.
Note: The service ports and the four-way switch
valve have been covered by insulation
tubing in order to protect wiring from high
temperatures. Do not remove this tubing
1 2 3 L N
for any reason other than for service work.
If it is removed, be sure to replace it and
secure it with the clamping material.
Switch
box
1 2 3 R S T
Hook
Power supply and
ground wiring
Clamp
When using 100 · 125 · 140 model
SiE25-110
Ground
Insulation tubing
Clamp
(attached)
Clamp
Stop valve
mounting plate
Wiring between
units
Field Piping and Wiring