Hitachi FSXN1E Series, Installation And Operation Manual

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L1
R S
L2 L3
T
N
Mp
TB1
TB2
PCB1
1 2 3 4
for IU to OU for OU to OU
Electrical box
Earth wire
Shielded twist pair cable
between outdoor units
transmission
Shielded twist
pair cable for
indoor unit to
outdoor unit
Harness lifter
L1
S
L2 L3
T
N
Mp R
400V/50Hz
Terminal board for power source cable (TB1)
Cord band
Earth wire
Attach insulation
sleeve
Earth terminal
(connect securely
cable)
For power source cable ( ∅ 52)
(knockout hole)
For control cable ( ∅ 26)
(knockout hole)
N O T E
Seal hermetically the entry of
conduit pipe by using putty,
etc. (for water protection)
N O T E
Seal hermetically the entry
of conduit pipe by using
putty, etc. (for water
protection)
For power source cable ( ∅ 65)
(knockout hole)
For control cable ( ∅ 33)
(knockout hole)
TB1
TB2
PCB1
Holes for power
source cable
at front and back of
unit ( ∅ 52)
Cord clamp (for fixing
power source cable)
Holes for control cable at front and
back of unit ( ∅ 52)
Holes for power source cable at
front and back of unit ( ∅ 52)
Control cable
Power source cable
Cord clamp (accessory)
Fix by accessory screw
Terminal board for power
source cable (TB1)
Hardness lifter
Fix 2 portions of
control cable
Fix by cord
clamp
C A U T I O N
Be sure to note the following points to run the cables under the
unit using conduit tube. (The pipe cover needs to be removed
before performing piping and wiring works.)
N O T E
• Do not run the power supply wiring and transmission wiring
through the same conduit tube. Moreover, keep at least 5cm
between the power supply wiring and transmission wiring.
• Pull out each wiring from each corresponding knockout hole.
Cut can “X” in rubber bush (accessory) and securely attach it
to the knockout hole for cable protection. Check that the rub -
ber bush is surely attached.
• Attach the pipe cover to prevent rats or other small animals
from entering the unit.
• Prevent the wirings from touching or rub against the refriger -
ant pipes, plate edges and electrical parts inside the unit.
• When the power source cable (cabtyre cable) whose size ex -
ceeds 38mm2 is used, peel the sheath part of the cable put
into the unit and run it. At this time, do not damage the coated
insulating coated part.
• Completely seal the end of conduit tube with sealing materials
to prevent the rain from entering the conduit tube.
• Make a drain hole at the lowest part of the conduit tube.
C A U T I O N
Tightly secure the power source wiring using a cord clamp inside
the unit.
N O T E
Fix the rubber bushes with adhesive when conduit tubes to the
outdoor unit are not used.
Liquid piping
Gas piping
(high/low pressure)
Gas piping
(low pressure)
Packing
Pipe cover
Seal
Rubber bush
Seal
Conduit tube
Rubber bush
Seal
Power supply wiring
Transmission wiring
62 PMML0294A rev.2 - 07/2014
Electrical wiring
PMML0294A_rev.2_02-2014.indb 62 14/07/2014 12:28:35