
46
For model E18SD3UAW
1 Remove control board cover (Resin and
Metal).
2 Remove particular plate.
3 Remove
plugs.
4 Fix the conduit connectors to the knockout
holes with lock-nuts, then secure them against
the side panel.
5 All wires pass through conduits & particular
plate’s opening hole.
6 Connecting wire between indoor unit and
outdoor unit should be UL listed or CSA
approved 4 conductor wires minimum AWG16
in accordance with local electric codes.
7 Wire connection to the power supply
(208/230V 60Hz) through circuit breaker.
o
Connect the UL listed or CSA approved
wires minimum AWG12 to the terminal
board, and connect the other end of the
wires to ELCB / GFCI.
Control Board
Cover (Metal)
Lock Nuts
Knockout
Holes
Plugs
Connectors
Control Board
Cover (Resin)
Front Panel
Connecting Wires
Particular Plate’s
opening holes
Particular
Plate
8 Connect the power supply cord and connecting wire between indoor unit and outdoor unit according to the
diagram below.
Outdoor Unit
1
2
3
1
2
L1
L2
3
Terminal
Terminal
Indoor Unit
Disconnect
Switch
Field supply
Grounding wire
Grounding wire min AWG16
Power Supply
Single Phase
208/230V 60Hz
min AWG12
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
* Ensure all connecting wire
between indoor unit and
outdoor unit and power supply
cord are installed in individual
conduit.
9 Secure the wire onto the control board with the holder (clamper).
10 After completing wiring connections, reattach the particular plate and control board cover (metal and resin) to
the original position with the screws.
11 For wire stripping and connection requirement, refer to instruction 11.1.6 of indoor unit.
Power
supply cord
Indoor & outdoor
connection cable
Terminal
Board
Terminal
Board
Holder
Holder
Earth
wire
longer
than
others
AC wires
for safety
reasons
Earth
wire
longer
than
others
AC wires
for safety
reasons
WARNING
This equipment must be properly earthed.
Earth lead wire shall be Yellow/Green (Y/G) in colour and longer than other lead wires for electrical safety in case
of the slipping.