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Sine-wave drive soft PWM
Smooth AC wave pattern
The inverter has been made more compact by inserting the
circuitry inside a synthetic resin molding.
To ensure quiet operation, soft PWM control is used to prevent
the metallic whine associated with conventional inverters.
Advanced Technology for High Efficiency
Numerous Leading-edge Technologies
Assure High Efficiency
Reluctance DC Rotary Compressor
<
PUHZ-RP71
>
The reluctance DC motor has a rotor equipped with powerful
neodymium magnets. The magnetic torque produced by the neodymium
magnets and reluctance torque results in more ecient operation.
Highly Efficient DC Scroll Compressor
<
PUHZ-RP71–200
>
Higher eciency has been achieved by adding a
frame compliance mechanism to the DC scroll
compressor. The mechanism allows movement in
the axial direction of the frame supporting the
cradle scroll, thereby greatly reducing the leakage
and friction loss, and ensuring higher eciency at
all speeds.
DC Fan Motor
<
PUHZ-RP71–200
>
A highly ecient DC motor has been installed to drive the fan of
outdoor units, realising up to 60% higher eciency when compared to
an equivalent AC motor.
Vector-Wave Eco Inverter
This inverter monitors the varying compressor motor frequency and
creates the most ecient waveform for the motor speed. As a result,
operating eciency in all speed ranges is improved and less power is used.
Power Receiver and Twin LEV Control
<
PUHZ-RP71–200
>
Mitsubishi Electric has developed a power receiver and twin linear expansion
valves (LEVs) that optimise the performance of the compressor. By ensuring
optimum control in response to the operating waveform and outdoor
temperature, this technology is tailored to the characteristics of the new
refrigerant to enhance operating eciency.
DC compressor motor (rotor)
Thrust gas power: minimum
Cradle scrollFrame
Secondary back-pressure
chamber minimises
thrust friction loss.
Primary back-pressure
chamber minimises
leaking loss.
Thrust friction loss: minimum
Leaking loss: minimum
Fixed scroll
Neodymium magnets
+
Magnetic torque Reluctance torque
see specication on Page 24
Control Technology
09-10
Easier to read thanks to use of a full dot liquid-crystal display with
backlight, and easier to use with a menu format that has reduced the
number of operating buttons.
The amount of power consumed in each time period is managed so that
the demand value is not exceeded. The demand control function can be
set to start and nish in 5-minute units. Additionally, the level can be
adjusted to 0, 50, 60, 70, 80 or 90% of maximum capacity, and up to 4
patterns can be set per day. Air-conditioning operation is automatically
controlled to ensure that electricity in excess of the contracted volume
is not consumed.
Energy-efficient Control
Operation Control Functions
Precise control of power
consumption
<
PUHZ–RP71–200
>
Easy To Read & Easy To Use
Multi-language Display
Control panel operation in eight
different languages
Display Example [Operation Mode]
Full Dot LCD
Energy-
efficiency
Schedule
Using a temperature that is 1°C lower/higher for heating/cooling results
in a 10% reduction in power consumption.* Temperature Range
Restriction limits the maximum and minimum temperature settings,
contributing to the prevention of overheating/overcooling.
*Based on Mitsubishi Electric laboratory tests in controlled conditions
Temperature Range Restriction
prevents overheating/overcooling
Temperature
Range
Restriction
When using Auto-o Timer, even if one forgets to turn o the unit,
operation stops automatically after the preset time elapses, thereby
preventing wasteful operation. Auto-o Timer can be set in 10-minute
units, in a range between 30 minutes and 4 hours. Eliminating all anxiety
about forgetting to turn o the unit.
Turns heating/cooling off
automatically after preset time
elapses
Auto-off
Timer
After adjusting the temperature for initial heating in winter or cooling
on a hot summer day, it is easy to forget to return the temperature
setting to its original value. The Auto-return function automatically
resets the temperature back to the original setting after a
specied
period of time, thereby preventing overheating/overcooling.
The
Auto-return activation time can be set in 10-minute units, in a range
between 30 and 120 minutes.
*Auto-return cannot be used when Temperature Range Restrictions is in use.
Prevents wasteful operation by
automatically returning to the
preset temperature after specified
operating time
Auto-return
This function monitors the room temperature and automatically
activates the heating mode when the temperature drops below the
preset minimal temperature setting. It has the same function for
cooling, automatically activating the cooling mode when the
temperature rises above the preset maximum temperature setting.
Keep desired room temperatures
automatically
Night
Setback
Choose the desired language,
among the following languages.
Multi-
Ianguage
[Swedish]
[English] [Italian] [German][Spanish]
[Russian] [Portuguese]
[French]
■Setting pattern example
Start time
8:15
12:00
13:00
17:00
Finish time
12:00
13:00
17:00
21:00
Adjusted capacity level
80%
50%
90%
50%
Cooling/Dry
(Setting example of minimum temp. in 25°C)
Lower temperature limit
Possible temperature range setting
19(˚C) 30(˚C)
30(˚C)25(˚C)
To prevent excessive cooling
Lower temperatures cannot
be selected
Meeting room Changing room
Recommended for
In addition to operation start/stop, the operation mode, temperature
setting and airow direction can be locked. Unwanted adjustment of
temperature settings is prevented and an appropriate temperature is
constantly maintained, leading to energy eciency. This feature is also
useful in preventing erroneous operation or tampering.
Fixed temperature setting promotes
energy efficiency
Operation
Lock
Computer server facility
Recommended for
Oce
School
Hospital
Public hall
Oce Restaurant
Recommended for
PAR-31MAA
Advanced Technology for High Efficiency
Full Dot Liquid-crystal Display Adopted
PAR-31MAA
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