Features Of Control System - Fujitsu AIRSTAGE J-IIIL Design & Technical Manual

1-3. Features of control system

¢ Simple wiring system
• 1 transmission line can interlink all equipments regardless refrigerant circuit.
• Non polar 2-conductor transmission cable.
• Central control equipment can be connected anywhere on the transmission line, with no need
to bring from the outdoor unit.
– Making up the network system easily
– Saving the total wiring length
– Preventing incorrect connection
– Saving installation time
¢ Adaption to large scale buildings
• 1 single VRF network can control an entire building using:
– Total transmission wiring length can be extended up to 11,811 ft (3,600 m) with signal am-
plifier unit.
– Up to 400 indoor units per group
– Up to 100 outdoor units per group
– Touch panel controller can be used for primary central control.
– Multiple touch panel controllers may be sued to provide convenient control for multiple con-
vertor. (For details, refer to
– Can control Fujitsu mini-split and HFI models using a network convertor. (For details, refer
to "Network convertor (UTY-VTGX)"
• System controller allows to control up to 4 VRF network systems (max. 1,600 indoor units),
suitable huge scale application.
¢ Reliability and easy maintenance
• Stand-alone transmission network, allows each equipment to operate individually, thus failure
of the units does not affect other indoor units operation.
• When a failure occurs, the error code is displayed on the individual controller and central con-
troller excepting wireless remote controller.
• Also error histories can memorized by each individual controller and central controller except-
ing wireless remote controller.
• System controller and Web monitoring tool allow to monitor operation status in real time via
Internet, and enable quick diagnoses.
• Maintenance works is improved efficiency, because Service tool can be connected to any-
where on the transmission line.
1-3. Features of control system
"Network convertor (UTY-VTGX)"
on page 05-109.)
- (05-10) -
on page 05-109.)
1. Control system