Important Notice
Please read the Important Notice in these Installation Instructions supplied with the central
controller, and perform installation in accordance with these instructions properly.
18
Installation Instructions
1. Complete information for the design planning, installation, commissioning, and after-sales
services of the central control system must be documented and archived for future reference.
2. Design planning of the central control system should be planned in advance, including:
(1) Composition of the central control system and quantity of controls;
(2) Selection and installation position of wired controller, electrical distribution and wiring,
assignment of addresses, and connection with controller;
(3) Installation position of central controller, setting of primary and secondary central
controllers, electrical distribution and wiring, and connection with wired controller;
(4) Installation and wiring of the central control system, limitation on bus length, terminal-
matched resistor at either end of bus, single-point grounding of the shielding layer of bus.
3. Notes:
(1) Cables for central control and distribution lines shall not be too close to each other or
routed in the same conduit. RS485 bus should be arranged as far away from interference
sources as possible, especially high voltage interference sources, such as transformer and
frequency converter. For other relevant precautions, see the requirements for wiring of
building automation system;
(2) The total length of the central control bus should not be more than 1000m (at the baud rate
of 9600 bps);
(3) The appliance on either end of the central control bus must be provided with terminal-
matched resistor. See the dip switch setting instructions for central controller/wired
controller/central box;
(4) It is recommended that single-point grounding of the shielded cable shall be arranged in
the middle of communication bus and close to the central controller;
(5) Central control line topology should be daisy-chain bus arrangement. If star topology or
tree topology is required, it is recommended that 485 concentrators and 485 repeaters be
used.
4. The wiring and installation of the central control network should be performed along with the
installation and commissioning of air conditioner. Test run should be performed before
installation.
5.The primary and secondary controllers can be set to operate at the same time in one central
control system with at least one controller as the primary central controller.
Check and confirm that in addition to the wired controller, the following accessories are
included in the packaging box:
Select the installation location according to the Importance Notice in the Instructions.
1. Selecting the location where the central controller is to be installed.
Qty.: 1
Qty.: 2
Use and installation instructions
Screw
Checking Accessories
How to install
To Next Page
Loading...
Need help?
General
