I
NSTALLATION
,
O
PERATION
&
M
AINTENANCE
Electrical Connections
ELECTRICAL CONNECTIONS
W
IRING
C
ONNECTIONS
•
Have a licensed Electrician install a dedicated circuit from the distribution board with a
separate circuit breaker for each unit installed.
•
Unit isolating switch is provided on the control box in the unit.
Isolate the mains supply at the circuit breaker before conducting any electrical
connect work.
•
Circuit breaker selection and cable size must be made relevant to the current rating of
the motor and the circuit breaker motor Kw specifications.
•
Where 3 phase units are being with frequently stop / started on high speed, a delay
timer must be fitted to the low speed control circuit by the installer to start the unit on
the low speed. This will reduce the level of maintenance required to belts and pulleys.
•
Electrical connections must be easily accessible for service and maintenance.
•
Check to see if the voltage of the air conditioner is compatible with your electrical
system voltage. Check that there will not be excessive voltage drop, which will cause
the unit to run inefficiently or even cause motor burn out. ±5% of the motor
nameplate voltage is usually acceptable by motor manufacturers.
•
Prior to completing the installation an electrician must check that the air conditioner is
operating correctly, and that the fan is rotating in the correct direction.
•
Replace all lids and covers.
•
The manufacturer advises that they will not be held responsible for replacement of
parts or labour costs on electrical components which fail as a result of incorrect
wiring.
W
IRING
–
I
MPORTANT
N
OTES
•
A LICENSED ELECTRICIAN must carry out all electrical connection wiring to
the unit. It is the responsibility of the LICENSED ELECTRICIAN that the unit is
connected as per AS3000 (Wiring rules) and any local regulations and statutory
or legal requirements.
•
Where 3 phase units are clustered using a single wall control for multiple units,
the unit control box must labelled indicating live wires inside. There will be
voltage in the control circuit if all units in the cluster are not isolated in the
multiple connections.
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