In addition, to secure the same performance level is kept
along the years and to optimise maintenance costs, with
“CARRIER CONNECT” the end-user access to most-qualified
remote monitoring services.
Minimised operating sound levels
■■ The Greenspeed® Intelligence, featuring variable-speed
screw compressors and condenser fans, minimises noise
levels at part load operation. At ESEER conditions for
example, noise at 25% load is up to 10 dB(A) lower than
noise at full load.
Fixed-speed screw unit
Sound power level [dB(A)]
COOLING
■■ Air condenser:
-- All aluminum micro-channel heat exchanger (MCHE)
with high corrosion resistance. The all aluminum
design eliminates the formation of galvanic currents
between aluminum and copper that cause coil
corrosion in saline or corrosive environments.
■■ Evaporator:
-- Carrier designed flooded evaporator with mechanically
cleanable water tubes
-- Electronic paddle-free flow switch to ensure prompt
alarm in case of poor liquid flow rate
-- Thermal insulation with aluminum sheet finish
(option) for perfect resistance to external aggression
(mechanical and UV protection).
■■ Refrigerant circuits:
-- Two independent refrigerant circuits to secure partial
cooling, if one of the two develops a fault.
■■ Auto-adaptive control:
-- Control algorithm prevents excessive compressor
cycling (Carrier patent)
-- Automatic compressor unloading in case of
abnormally high condensing pressure. If condenser
coil fouling or fan failure occurs, the AquaForce
continues to operate, but at reduced capacity.
■■ Exceptional endurance tests:
-- To design critical components subassembly
minimising risk of failure on site, Carrier uses
specialised laboratories and advanced dynamic
simulation tools.
-- To ensure that the units reach customer sites in the
same shape as they are when tested in the factory,
Carrier tests the machine behavior while being moved
along a 250 km trial. The test is based on a military
standard and equal 5000 km by truck in a normal
road.
-- To ensure coils corrosion resistance, salt mist
corrosion resistance test are performed in Carrier's
laboratory.
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Easy and fast installation
■■ Simplified electrical connections:
-- Main disconnect switch
-- Transformer supply to the integrated control circuit
(400/24 V)
-- Single electrical point of connection (optional for
sizes 800 to 1150)
-- Factory installed main disconnect fuses (optional for
sizes 600 to 1150).
■■ Simplified water connections:
-- Victaulic connections on the evaporator
-- Practical reference marks for entering and leaving
water connections
-- Possibility to choose different evaporator
configurations, 1 or 2 passes.
■■ Fast commissioning:
-- Systematic factory operation test before shipment
-- Functional test for main components, expansion
devices, fans and compressors.
Environmental care
■■ R134a: HFC refrigerant with zero ozone depletion
potential
■■ 30% less refrigerant charge: The micro-channel
technology used for condenser coils optimises heat
transfer while minimising the refrigerant volume
■■ Leak tight refrigerant circuits:
-- Reduction of leaks as no capillary tubes and flare
connections are used
-- Verification of pressure transducers and temperature
sensors without transferring refrigerant charge
-- Discharge line shut-off valve and liquid line service
valve for simplified maintenance.
■■ Refrigerant leaks alarm: Available as an option, this
additional dry-contact allows reporting of possible leaks.
The leak detector shall be mounted (at customer care)
where, refrigerant leaks most likely to happen . Contact
Carrier for more details.
Designed to support Green
Building Design
More silent
during real life
operation!
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■■ Standard unit features include:
-- Discharge damper