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6. 3. Knockout hole
CAUTION
Seal the wiring route hole with putty (Locally purchased) such that there are no gaps
.
Small insects or animals that are trapped in the outdoor unit may cause a short circuit
in the electrical component box.
Be careful not to deform or scratch the panel while opening the knockout holes.
After opening the knockout holes, remove burr on the edges, and attach the conduit
or grommet edging (accessories) to prevent damaging the cables.
It is recommended to apply rust proof paint on the edges to prevent rust.
Electric wires can be connected from the front or from the left.
(Knockout holes are prepared so that wiring can be made from 2 diff erent directions.)
Use the knockout holes on the front and the left separately when necessary.
L
< Left view > < Front view >
(Unit: mm)(Unit: mm)
Length of the grommet edging Mounting the grommet edging
Grommet edging
(accessories)
Knockout hole
Ø 50
Ø 34.5
Ø 43.7
Ø 22.2
Ø 50
Ø 34.5
Ø 43.7
Ø 22.2
Knockout hole
diameter (mm)
Dimension
L
(mm)
Ø 50 147
Ø 43.7 130
Ø 34.5 100
Ø 22.2 60
6. 4. Selecting power supply cable and breaker
CAUTION
Obtain the distribution network operator's agreement about the power capacity of
the power supply system, specifi cation of the cable and the harmonic current, and
etc. when you connect the outdoor unit with the power supply.
Regulation of wire size and circuit breaker diff ers from each locality, please refer in
accordance with local rules.
Refer to the table for the wiring and breaker specifi cations of each installation condition
.
(1) Selecting power supply cable and breaker when connecting 1 outdoor unit
Model
Breaker (Time delay fuse or circuit capacity)
Fuse capacity (A) Leakage current
AJ
072LNTCH 20
100mA
0.1sec or less
AJ
090LNTCH 25
AJ
108LNTCH 25
AJ
126LNTCH 40
AJ
144LNTCH 40
AJ
162LNTCH 40
Model
Outdoor unit power supply cable
Power supply
cable (mm
2
)
Ground wire (mm
2
)
Critical wiring
length (m)
AJ
072LNTCH 6 6 62
AJ
090LNTCH 6 6 62
AJ
108LNTCH 6 6 62
AJ
126LNTCH 10 10 64
AJ
144LNTCH 10 10 64
AJ
162LNTCH 10 10 64
1) These values are recommended data.
2) Specifi cation: Use conformed cord with Type 60245 IEC66
3) Max. wire length: Set a length so that the voltage drop is less than 2%. Increase
the wire diameter when the wire length is long.
Fig. In case of connected outdoor unit
GOOD
Transmission cable
Remote controller cable
Breaker
400 V 3ø 50/60 Hz
Breaker
230 V 1ø 50/60 Hz
Outdoor unit
Power supply cable
Indoor unit
Power supply cable
(2) Selecting main breaker and main power supply cable when connecting multiple
outdoor units
Main breaker: Main breaker ≥ Total Sub breaker
(Refer to the table in item (1) for the
sub breaker capacity)
Fig. In case of connected 3 outdoor unit
GOOD
Sub
breaker
Outdoor unit power supply cable
400 V 3ø
50/60 Hz
Main
breaker
Example of prohibited breaker wiring
400 V 3ø
50/60 Hz
Outdoor unit power supply cable:
Crossover wiring between outdoor
units is prohibited.
Breaker:
Connecting multiple outdoor
units to one breaker is
prohibited.
6. 5. Transmission line
CAUTION
• Caution when wiring cable
When stripping off the coating of lead wire, always use the exclusive tool such as
a wire stripper. If there is no exclusive tool available necessarily, carefully strip the
coating by a cutter etc. so that the conductive wire is not damaged.
If it is damaged, it may lead to an open circuit and a communication error.
• Pay attention to the following points while attaching wires on the terminal board.
Do not attach 2 wires on one side.
Do not twist wires.
Do not cross the wires.
Do not shorted at edge at root.
PROHIBITED
GOOD
PROHIBITED
PROHIBITED PROHIBITED
GOOD
2pcs at one side
Shorted at edge
Wires twisted
Shorted at root
1 wire
2 wires
6. 5. 1. Transmission wiring specifi cations
Follow the specifi cations below for the transmission cable.
Use Size Wire type Remarks
Transmission
cable
0.33mm
2
22AWG LEVEL 4 (NEMA)
non-polar 2core, twisted pair
solid core diameter 0.65mm
LONWORKS
®
com-
patible cable
9378945623-02_IM_EN.indd 139378945623-02_IM_EN.indd 13 2022/10/28 8:43:18 AM2022/10/28 8:43:18 AM
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Productinformatie
| Merk | Fujitsu |
| Model | AJH090LNTCH |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 5465 MB |
