
10
Base Extension a Extension b
Compressor
Compressor
Compressor
Compressor
Compressor
Compressor
Number one
in energy conservation.
Number one
in energy conservation.
High-efficiency
DC twin-rotary compressors
All outdoor units use DC twin-rotary
compressors, offering optimum
compatibility with high-density
R410A refrigerant.
Controlling
savings and reliability.
Controlling
savings and reliability.
Reliability
With dual-rotation, the load
is distributed more evenly – this
means that the operating
sequence of the outdoor units
and the individual compressors
is rotated to spread the operating
hours more evenly.
As the compr
essors are all
inverter driven, power surges are
eliminated.
Over or under-utilisation
of power, typical for non-inverter
compressors, is eliminated,
and there is no on/off power
surge as the systems adjusts
to the demand required
by the occupant.
The use of inverter compressors
reduces the risk of compressor
failure, more common in
standard non-inverter systems.
Energy savings
During operation the system
determines which heat exchanger
can be used most efficiently
and selects the compressor
to deliver the power required.
Inverter systems save energy
as continuous operation offers
the same capacity with lower
power consumption.
This benefits all occupants
by maintaining even room
temperatures, as well
as the environment by reducing
energy consumption.
Energy savings
DC Twin-rotary compressor in all outdoor units
V
ector controlled inverter
All combination outdoor units now fitted with DC twin-r
otary compressor
(switched to “all inverters” type)
DC
Fan motor
Efficiency declines with one outdoor
unit (heat exchanger)
Using many outdoor units (heat exchangers)
is mor
e ef
ficient
12 3 4
Operate
Operate Operate
On On Of
f
Of
f
12 3 4
On On On Off
Stop
Heat exchangers
Reliability
Savings
Conventional system
System with controlled
Safety & Savings
Fixed speed
compressor
Fixed speed
compressor
Fixed speed
compressor
Inverter
compressor
Inverter
compressor
Inverter
compressor
Inverter
compressor
Inverter
compressor
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