Idiomas disponibles
Idiomas disponibles
2. Table of selection of communication line diameter
Function
HyperLink
communication
Item
(IDUs are powered
independently)
2 × 1.5mm
2
Wire
Wire resistance
diameter
≤ 1.33Ω/100m
≤ 600m
Length
(add two repeaters)
[ Caution ]
Please select the communication line according to the requirements in the above reference table. Use shielded cables
for communication when strong magnetism or interference is present.
On-site wiring must comply with the relevant regulations of the local country/region and must be completed by
professionals.
Do not connect the communication line when the power is on.
Do not connect the power cable to the communication terminal; otherwise, the main control board may be damaged.
The standard value of the screw torque of the communication line terminal is 0.5N·m. Insufficient torque may cause
poor contact; excessive torque may damage the screws and power supply terminals.
Both HyperLink communication and PQ communication are internal and external, so only one of the two can be
selected. Do not connect both HyperLink communication line and PQ communication line to the same system,
otherwise the IDU and ODU cannot communicate normally.
If some of the IDUs in the same refrigerant system are non-V8 series, only P/Q/E communication can be selected for
the IDU and ODU communication. The three-core shielded cable of 3×0.75mm
"E".
Do not bundle the communication line with the refrigerant pipeline, power cable, etc. When the power cable and the
communication line are laid in parallel, a distance of more than 5cm should be maintained to prevent interference from
the signal source.
When the construction personnel of the IDU and ODU are working separately, information communication and
synchronization are required. Do not connect the ODU to HyperLink and the IDU to PQ. Do not connect the ODU to
PQ and the IDU to HyperLink.
Bonding and connecting the communication line should be avoided, but if it is used, at the very least, ensure a reliable
connection by crimping or soldering and make sure the copper wire at the connection is not exposed; otherwise,
communication failure may occur.
IDU and ODU communication
HyperLink
P/Q communication
communication
(IDUs are powered
(IDUs are powered
uniformly)
uniformly)
2 × 0.75mm
2 × 0.75mm
2
(shielded cable)
≤ 2000m
P/Q/E communication
(IDUs are powered
uniformly)
3 × 0.75mm
2
(shielded cable)
≤ 1200m
≤ 1200m
47
Installation
One controller to
one IDU
(two controllers
to one IDU)
communication
communication
X1X2
communication
communication
2 × 0.75mm
2
2
(shielded cable)
(shielded cable)
≤ 200m
is required to connect "P", "Q", and
2
One-to-more
(centralized
control)
D1D2
2 × 0.75mm
2
≤ 1200m
