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11. Installation
AHU Control Unit
Range of Permitted Wires
AWG
mm² (inch²)
0.25 to 1.65
22 to 16
(0.0003 to 0.0025)
• F1, F2 communication wire: Maximum distance from outdoor unit to the ACU: 100m (328 ft)
• F1, F2 communication wires: 18 AWG solid core
7 Set the DIP switches to fit the application requirements. Scan the QR code attached to the front cover of
the AHU Control Unit (ACU) using a smartphone camera to use an on-line system configuration wizard.
8 Pass the supplied cable tie through the wire organizer loop, secure the wires connected to the terminal
blocks. Ensure that the knot of the cable tie faces the side.
Rated Size
Stud Size
mm² (inch²)
mm (inch)
1.5
3
(0.0023)
(0.1181)
(0.0275)
Basic Size [mm (inch)]
t
ØD
G
0.7
3.8
10.0
(0.1496)
(0.3937)
E
F
W
4.5
6.5
6.0
(0.1771)
(0.2559)
(0.2362)
L
21.2
(0.8346)
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