Hitachi RAS-10FSXNPE, Instruction Manual

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Electrical box
(1) Terminal block
for power source
(2) Terminal block
for control circuit
(5) Power source wiring
outlet (rubber bush)
(5) Control wiring outlet
(rubber bush)
Ground connection for
“shielded twist pair cable”
Screw (M3.5)
Terminal block for control circuit
Outdoor to outdoor terminal (*)
(Communication wiring between
outdoor units used in combination)
H-LINK terminal (Communication wiring
between the outdoor unit and indoor
unit, or between the outdoor unit and
outdoor unit of other refrigerant system)
(*) This terminal is used only for combination of outdoor units
(FSXNSE: 26-96HP, FSXNPE: 20-72HP) and not used for single units
(FSXNSE: 8-24HP, FSXNPE: 5-18HP.)
PCB1
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Fix by accessory screw (for fixing
control wiring)
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• Install accessory rubber
bushes to the wiring outlets.
• Seal hermetically the end of
conduit pipe by using putty,
etc. (for water protection)
(2) Detail of terminal block for control circuit
(3) Details of bottom base wiring outlet
(4) Details of wiring outlets inside the electrical box (rubber bush section)
Rubber bush (wiring outlet)
Correct
Correct
Incorrect
Incorrect
Rubber bush
Rubber bush
Rubber bush
Electrical box
(metal)
Make sure that the rubber bush is
in place
Make sure that the power source wiring passes through the
center of the rubber bush
If the power source wiring does not pass through properly, snow or
water may enter in the unit
(*) Using a cutter knife, cut an X in the
rubber bush on site as shown below
(*)
For power source wiring
(Unit: mm)
For transmission wiring
For control wiring
(Ø65 knockout hole)
(Ø55 knockout hole)
(Ø33 knockout hole)
Fix the control
wiring using a
clamp
Control wiring
Power source
wiring
Cord clamp (accessory)
(5) Transmission wiring
outlet (rubber bush)
(1) Detail of electrical box terminal
400 V / 50 Hz
Screw (M5 or M6)
Terminal block for power
source (TB1)
Earth terminal
(connect securely
cable)
Attach insulation
sleeve
Rubber bush
Cable clamp
(accessory)
Earth wire
Printed circuit board
(PCB1)
Cord clamp (for
fixing power
source wiring)
Snow or water
may enter
Connect the three-phase power cables on terminals L1, L2, L3 and N of the TB1 terminal board and connect the earth wire to the
screw-in terminal. Use insulated terminals or heat-shrink covers.
Connect the communication cables on the terminals of the TB2 -C- of the PCB1:
• From the indoor units to the outdoor unit: terminals 1 and 2.
• From the outdoor unit to the next outdoor unit in the same refrigerant cycle: terminals 3 and 4.
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Completely seal the entrance to the duct using sealant, etc. to prevent water from entering.
ELECTRIC WIRING
PMML0479 rev.4 - 11/2018 40