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39
10.2.5 Connect The Cable To The Outdoor Unit
1. Remove Plugs.
2. Fix the conduit connectors to the knock
out
hole
s with lock-nuts, then secure them.
3.
Connecting wire between indoor unit an
d
outdoo
r unit should be UL listed or
CSA
approved 4 condu
ctor wires minimum AWG1
6
in accordan
ce with local electric code
s.
4.
Wire Connection to the power supply
(208/2
30V 60Hz) through circuit breake
r.
o
Connect the UL liste
d or CSA approved
wires minimum AWG12 to the terminal
board, and co
nne
ct to other end of the
wire
s to circuit breaker.
5.
Connect the power supply cord a
nd
con
necting wires between indoor unit an
d
outdoo
r unit according to the diagram as
shown.
6.
For wire stripping and connection requirement, refer to the diagram below.
7.
Secure the power supply cord and connection cables onto the control board with the holde
r.
8.
Fix the cabinet side plate (metal) back to the original position with screws.
1
2
3
1
2
L1
L2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
O
u
t
d
o
o
r
Uni
t
Unit A
Unit B
Unit C
Unit D
Terminal
Terminal
Terminal
Terminal
Terminal
Indoor
Unit A
Disconnect
Switch
Field supply
Grounding wire
Power Supply
Single Phase
208/230V 60Hz
min AWG12
Grounding wire min AWG16
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
Grounding wire min AWG16
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
Grounding wire min AWG16
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
Grounding wire min AWG16
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
Indoor
Unit B
Indoor
Unit C
Indoor
Unit D
Each indoor unit must have its own conduit for the
wires between the indoor and outdoor unit but the
power supply for the outdoor unit must be in a separate
conduit to prevent potential communication problems.
CU-4E24***
Unit D
Unit CUnit A Unit B
Indoor & Outdoor connection cablePower Supply Cord
Isolating
Devices
Indoor
Unit A
Indoor
Unit D
Indoor
Unit B
Indoor
Unit C
Lock
Nuts
Top panel
Connectors
Plug
Rear panel
Knock Out
Holes
Wire stripping
(gap between wires)
No loose strand when
inserted
Indoor/outdoor
connecting
terminal board
•
Ground wire shall be Yellow/
Green (Y/G) in colour and longer
than other AC wires for safety
reason.
13
/
32
"±
1
/
16
"
(10±1mm)
Conductor fully
inserted
Conductor over
inserted
Conductor not
fully inserted
ACCEPT PROHIBITED PROHIBITED
WIRE STRIPPING AND CONNECTING REQUIREMENT
7
/
32
"(5mm)
or more
This equipment must be
properly earthed.
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