CIAC IMVF Series - Power and Signal Line Wiring

23
The wiring for the power line and signal line of connection kit
Graphical representation for wiring
The wiring for the power line of connection kit, the wiring for the signal line between connection kites and outdoor
units as well as the wiring between connection kites.
Items
Total
Current
of valve
boxes
(
A)
Cross
Section
（
mm
2
）
Length
（
m
）
Rated
Current of
Overow
Breaker
(A)
Rated Current of Power
Leakage Breaker (A)
Leaking Current (mA)
Operating Period (S)
Cross Sectional Area
of Signal Line
Outdoor -
connection
kit (mm
2
)
Connection
kit -
connection
kit (mm
2
)
<10 2 20 20 20A,30mA,0.1S or below
2cores ×0.75-2.0 mm
2
shielded line
≥10 and <15 3.5 25 30 30A,30mA, 0.1S or below
≥15 and <22 5.5 30 40 40A,30mA, 0.1S or below
≥22 and <27 10 40 50 50A,30mA, 0.1S or below
• Power cable and communication wire must be xed rmly.
• Each connection kit must be earthed well.
• When power cable exceeds the range, thicken it appropriately.
• Shielded layer of communication wires must be connected together and be earthed at single point.
• Communication wire total length cannot exceed 1000m.
Connect the communication terminal block P and Q of the main unit of the outdoor units with the communication
terminal block P and Q of the rst connection kit (VP 1).