Features Of Control System - Fujitsu AJ 126LELDH Series 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 VRF network system allows to form large scale application as follows:
– Total transmission wiring length can be extended up to 3,600 m with signal amplifier 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
converter (UTY-VTGXV)"
– By adopting a separate interface, it is possible to connect other products and systems by
FUJITSU GENERAL such as single type models (excluding some models), J series or multi
air conditioner for buildings (e.g. Big multi). Refer to
page 05-114 and
• 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 converter (UTY-VTGX)"
on page 05-120.)
"Network converter (UTY-VTGXV)"
- (05-11) -
on page 05-114 and
"Network converter (UTY-VTGX)"
on page 05-120.
"Network
on
1. Control system