Technical data

• Sky Air • Centralised Control systems
45
• Centralised control systems
2
7
7 Length of transmission wiring
7 - 4 Number of connectable Units
NOTES
1 When you connect 8 or more central control equipment, it is required to satisfy the following conditions. The following conditions are not required
to be considered when the number of controller is 7 or less.
2 When BS unit is installed, BS unit is not counted in the number. However, the indoor units after BS unit should be counted.
3 The outdoor unit is limited up to maximum of 10 units and also the number of function units is also limited up to 5. However, if the sequential start
setting is possible, up to 10 function units can be connected.
4 When the parallel interface is connected, the number of indoor units is limited up to 64 groups (128 units).
When you judge whether the number of the connectable units is possible, refer to the flow chart on the next page.
Central control equipment Indoor unit Outdoor unit Other adapters
Target controller (max. number)
• Centralised remote control
(2 units)
• Unified ON/OFF control
(8 units)
• Schedule timer (1unit)
• Parallel interface (4 units)
• VRV system
• Sky Air series
(Interface adapter for Sky Air
is required for certain units,
please contact your dealer
for this.)
• HRV unit
• Facility air-conditioner
(Wiring adapter for other air-
conditioner is required.)
• Room air conditioner
(Wiring adapter for other air
conditioner is required)
• BS unit (2)
• Wiring adapter
• Outdoor unit for VRV system • External control adapter for
outdoor unit
• Wiring adapter for electrical
appendices
Number
of units
(note 1) Up to 128 units (note 4) Up to 10 units (note 3) Up to 10 units
• Central control equipment + Indoor units + Outdoor units + other adapters ≤ 160 units
• Central Conversion number of central control equipment * + Indoor units + outdoor units + other adapters ≤ 200 units
NOTE: * is converted one central control equipment except unified ON/OFF control as 10 units.)