Fujitsu UTP-VX90A Installation Manual - Page 12
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7.4.2. Connecting the Cables
Pay attention to the following during installation. Failure to do so may cause water
penetration damage.
• Use the attached waterproof cable gland.
• Multiple differently-shaped waterproof cable glands are attached, so make sure to
use the waterproof cable gland suited to the cable hole.
• Make sure to fi rmly secure the waterproof cable gland to the cable hole.
• When attaching the cable gland, using a tightening torque that is less than the
recommended value may cause water penetration. Using a tightening torque that is
more than the recommended value may cause damage to the cable gland.
(1) Connect the cable.
(i) As shown below, pass the cable through the cable hole on the bottom of the control
unit and through the cable gland (accessories), then connect the cable to the termi-
nal block.
(ii) Attach the cable gland firmly to the
unit.
(iii) Attach the cable firmly to the cable
gland.
(i)
(ii)
Terminal block
(2) Secure the cable.
• Using power supply cables
Secure the cable using the cable clamp mounted inside the device.
• Using other than power supply cables
Secure the cable using the cable ties (With stopper, accessories).
Cable clamp
• Unused holes
Mount blind bars instead of cables to the cable glands.
(i) Insert the blind bar into the cable gland.
(ii) Firmly secure the blind bar to the cable gland.
(iii) Mount the cable gland to the hole, and secure fi rmly.
(i)
(ii)
Blind bar
En-11
CAUTION
Tightening torque for cable gland
(recommended value)
For M10
0.5 N·m
For M16
1.0 N·m
For M20
1.0 N·m
(iii)
Terminal block
Terminal block
A
(iii)
• Outdoor cable connections
(1) Thermistor cable connections
• Connect the thermistor cables to the relay multi-conductor cables as shown in the
diagram before passing through the hole.
• Make sure to use only weatherproof relay cables.
Terminal block
(2) Electronic expansion valve cable connections
A
B
Make sure to observe the following installation conditions
0.5 N·m
• Avoid locations in direct sunlight
• Avoid locations with wind and rain
1.5 N·m
• Avoid locations with water contact
2.0 N·m
Mount the wired remote controller to the inside of the control unit
(1) Processing the remote controller cable
For 2-wire type remote controller (fi eld supply)
10
B
← To control unit
For 3-wire type remote controller (attached with the remote controller)
10
← To control unit
(2) Wiring the remote controller cable (door side)
See the wired remote controller installation manual for how to install the remote controller
and the wiring method. Further, as shown in the diagram below, pass and draw through
the remote controller cable from the case to the cable hole at the back of the case.
Remote controller cable
(Unit: mm)
Cable ties
(With stopper,
accessories)
Cable tie (Accessories)
Bundle the remote
controller cable together
with the ground cable.
Relay cable
25
750
25
750
Back side of the door
Fixed position of the
remote controller
50
Cable tie mounts
(Accessories)
Earth (ground)
cable
Cable ties
(Accessories)
Cable connector
Thermistor
(Unit: mm)
Refer to the installation manual
of the remote controller.
To remote controller →
Refer to the installation manual
of the remote controller.
To remote controller →
Rear case of the
remote controller
Screws M4×L6
(Accessories)
Remote
controller
cable