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AHU-KIT
Do not install or operate the unit in rooms mentioned below:
a) Where mineral oil, like cutting oil is present.
b) Where the air contains high levels of salt such as air near the ocean.
c) Where sulphurous gas is present such as that in areas of hot spring.
d) In vehicles or vessels.
e) Where voltage fluctuates a lot such as that in factories.
f) Where high concentration of vapor or spray are present.
g) Where machines generating electromagnetic waves are present.
h) Where acidic or alkaline vapor is present.
Installing this unit must comply with the relevant local and national codes.
Connecting the power after all installation works are done.
3.3 Requirements for Communication Wire
NOTICE
If the unit is installed in the place with strong electromagnetic interference, shielded wire must
be applied on the communication wire between indoor unit (AHU-KIT) and wired controller.
Twisted pair wire with shielding function must be applied on the communication wire between
indoor unit and indoor unit (outdoor unit).
3.3.1 Selecting communication wire for AHU-KIT and wired controller
Wire type
Light/Ordinary
polyvinyl chloride
sheathed cord.
Connection between AHU-KIT and wired controller is shown as follows：
(1) When one AHU-KIT is connected to one AHU, you can adopt the connection ways of one
wired controller to one AHU-KIT or one wired controller to several AHU-KITs (group
control, n≤16).
(2) When several AHU-KITs are in parallel connection with one AHU, you can only adopt the
way of one wired controller to several AHU-KITs (group control).
Total length of
communication wire
between indoor unit
and wired controller
L≤250m
2×AWG18~2×AWG16
(L≤820-1/4feet)
NOTICE
Wire size
1. Total length of communication cable
2. The cord shall be Circular cord (the
3. If unit is installed in places with
12
Remarks
can't exceed 250m (820-1/4feet).
cores shall be twisted together).
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
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