Справочник Пользователя для Hitachi RAC-25FXA RAC25FXA
Модели
RAC25FXA
13-2
13.1 GENERAL CHECK
ATTENTION:
– Turn OFF
– Turn OFF
– Check to ensure that the indoor fan and the outdoor fan
have stopped before electrical wiring work or a
periodical check is performed.
periodical check is performed.
– Protect the wires, drain pipe, electrical parts, etc. from
rats or other small animals. If not protected, rats or
other small animals may gnaw at unprotected parts and
at the worst, a fire will occur.
other small animals may gnaw at unprotected parts and
at the worst, a fire will occur.
– Avoid the wires from touching the refrigerant pipes, plate
edges and electrical parts inside the unit. Otherwise, the
wires will be damaged and at the worst, a fire will occur.
wires will be damaged and at the worst, a fire will occur.
CAUTION:
Tightly secure the wires with the cord clamp inside the
indoor unit.
indoor unit.
NOTE:
Fix the rubber bushes with adhesive when conduit tubes
to the outdoor unit are not used.
to the outdoor unit are not used.
1. Make sure that the field-selected electrical components
(main power switches, circuit breakers, wires, conduit
connectors and wire terminals) have been properly
selected according to the electrical data given in this
technical catalog. Make sure that the components
comply with National Electrical Code (NEC).
connectors and wire terminals) have been properly
selected according to the electrical data given in this
technical catalog. Make sure that the components
comply with National Electrical Code (NEC).
2. Check to ensure that the power supply voltage is within
±10% of the rated voltage.
3. Check the capacity of the electrical wires. If the power
source capacity is too low, the system cannot be started
due to the voltage drop.
due to the voltage drop.
4. Check to ensure that the ground wire is connected.
5. Power Source Main Switch
Install a multi-pole main switch with a space of 3.5mm or
more between each phase.
more between each phase.
13.2 ELECTRICAL WIRING FOR
MONOZONE/MULTIZONE UNIT
13.2.1 PROCEDURES OF WIRING
Connect the electrical wiring between the Indoor and
Outdoor unit, as shown below. Never connect the wiring by
mistake.
Outdoor unit, as shown below. Never connect the wiring by
mistake.
In case of wrong connection, the unit does not operate
properly and it may cause malfunction.
The connecting cord must be fixed by the banc which is
located near the terminal board.
properly and it may cause malfunction.
The connecting cord must be fixed by the banc which is
located near the terminal board.
Connection of connecting cords and power cord
–
Cut of the connecting cord, the power cord and strip
the insulation of the wire.
the insulation of the wire.
–
Connect the connecting cord and power cord to the
terminal board.
terminal board.
–
Fix the connecting cords and power cord with steel
band certainly.
band certainly.
WARNING:
–
–
The naked part of the wire core should be10 mm and
fix tem tightly to the terminal. Then try to pull the
individual wireto check if the contact is tight. Improper
insertion may cause the terminal to burn.
fix tem tightly to the terminal. Then try to pull the
individual wireto check if the contact is tight. Improper
insertion may cause the terminal to burn.
–
Be sure to use only power cables approved from the
authorities from your country. For example in
Germany: Cable type : NYM 3x1.5mm
authorities from your country. For example in
Germany: Cable type : NYM 3x1.5mm
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