Features and advantages
Features
Easy and fast installation
The AquaSnap Greenspeed systems can be used with a
wide choice of Carrier terminal fan coil units - cassettes,
low, medium and high-pressure satellite units, console units,
underceiling units and high-wall units.
Ecodesign is the European Directive that sets mandatory
requirements for Energy related Products (ErP) to improve
their energy efficiency. Carrier supports initiatives to reduce
the environmental impact of its products.
■■ Integrated hydronic module (option)
-- Fixed speed water pump or variable speed circulator
-- Water filter protecting the water pump against
circulating debris
-- High-capacity membrane expansion tank ensures
pressurisation of the water circuit (option)
-- Overpressure valve, set to 3 bar
-- Thermal insulation and frost protection down to
-20°C, using an electric resistance heater and pump
cycling.
-- Integrated water fill system to ensure correct water
pressure (option)
No additional buffer tank required, simplyfing and speeding
up the installation process (to be checked with the water
volume of installation).
HEATING
Quiet operation
■■ Compressors
-- Low-noise INVERTER Twin rotary compressor with
low vibration levels
-- Advanced technology providing maximum energyefficiency with high capacity available at peak
conditions and optimised efficiency at low and mid
compressor speeds. The AquaSnap Greenspeed
heat pump DC inverter uses Intelligent Power Drive
Unit (IPDU) hybrid inverter technology. An electronic
management logic is used to optimised compressor
operation in all conditions, minimised temperature
fluctuation to give a perfect individual comfort control
with significant reduction of energy comsuption :
• PWM: pulse width modulation of the direct current
controls the compressor at partial load conditions,
adjusting the frequency at fixed voltage. The
compressor speed is fine-tuned and the system
provides high-level comfort (no temperature
fluctuations) at exceptionally efficient working
conditions.
Compressor frequency is increased continuously up to the
maximum level. This ensures that there are no current draw
peaks in the start-up phase. Inverter ramp-up speed makes
soft starts unnecessary and ensures immediate maximum
power.
-- The two rotary compression cylinders, offset from
each other by 180°, and the DC brushless motor with
the shaft in perfect balance ensure reduced vibration
and noise, even at very low operating speeds. This
results in an extremely wide range between minimum
and maximum capacity with continuous operation,
guaranteeing that the system is always optimised
and provides maximum comfort at exceptionally high
efficiency levels.
-- Twin-rotary cylinders, low vibrations and low load to
the shaft ensure highest compressor reliability and a
long trouble-free operating life.
-- All DC brushless twin-rotary compressors are
equipped with internal system to secure the motor
against oil issues due to colder climate.
-- A double compressor shield for acoustic insulation
further reduces noise levels.
■■ Air heat exchanger section
-- Vertical air heat exchanger coils
-- The latest-generation low-noise fans are now even
quieter and do not generate intrusive low-frequency
noise
-- Rigid fan installation for reduced start-up noise.
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■■ Physical features
-- Advanced circuit design and component selection has
resulte