EDM SyScroll 40 75 Air

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SyScroll 40-75 Air
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General
The new SyScroll Air air cooled water chillers have been
designed and optimized to operate with R410A refriger-
ant uid. They are available in cooling only CO, heat pump
HP, remote evaporator (RE) and brine for process cooling
application versions.
Each version consists of 6 sizes and covers a nominal
cooling capacity range from 40.0 to 76.0 kW and a nomi-
nal heating capacity range from 40.0 to 77.0 kW.
All units are equipped with two scroll compressors in tan-
dem for the best operation in partial system loads.
The general operation status of the machine is continu-
ously under the new control of an microprocessor based
controller.
The units can operate with very low water content,
thanks to the new microprocessor implementing an auto-
adaptive control logic ensuring a total protection of the
compressors at different load or water volume conditions.
The minimum water volume requested is 2.5 l/kW. An on
board water tank with one or two pumps can be supplied
as option. Pumps (1 or 2) can also be supplied without
water tank. A fan speed controller can be supplied loose
as eld-installed accessory to allow the unit operating in
cooling mode at low ambient temperature.
SyScroll Air series can be supplied with 2 acoustic options:
Base Low Noise (BLN): This version is equipped with
delta connected fan motors.
Super Low Noise (SLN): This version is equipped with
star connected fan motors which allow the unit to oper-
ate with a very low rpm. Compressor sound proof jack-
ets are also supplied as standard on this version.
To increase its application eld, SyScroll Air ranges are
available in 2 additional versions:
High temperature (HT): units are equipped with inverter
fans allowing operating on a wider envelope. HT ver-
sion can be supplied with BLN acoustic option only.
High pressure fans (HPF): units are equipped with in-
verter fans providing external static pressure up to 120
Pa. HT / HPF versions can be supplied with BLN acoustic
option only.
Conformity with standards
The units are in conformity with the following standards:
Machine Directive: 2006/42/EC
Low Voltage Directive: 2006/95/EC
Electromagnetic Compatibility Directive: 2004/108/EC
Pressure Equipment Directive: 97/23/EC
Cabinet
The cabinet is made of heavy gauge galvanized steel. All
galvanized steel components are individually painted by a
special painting process before the assembly of the unit.
This painting system performs a homogeneous protec-
tion to the corrosion. The painting is a polyester powder
based type, coloured in RAL 7040. The units are suitable
for outdoor installation, directly on the building roof or at
the ground level.
Compressors
Compressors are hermetic scroll type equipped with an
inherent motor protection device ensuring protection
against overheating. All compressors have direct-on-line
starting and are mounted on rubber vibration isolators in
order to minimize noise and vibration transmission.
A soft start system can be supplied as optional, whereas a
phase sequence monitor is supplied as standard.
Evaporator
Indoor heat exchangers are brazed stainless steel plate
type. They are insulated with a 10 mm thick closed cell
polyethylene foam material and provided with male gas
threaded connections. It is protected by a 35 W antifreeze
electric heater to ensure a good protection against freez-
ing at low ambient temperature when the unit is switched
off. Maximum working pressure is 10 bar at water side
and 45 bar at refrigerant side.
Specications
Sy Scroll
Air
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S
SIZES
CO
HP
RE
BC
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HT
HPF
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CO = Cooling Only; HP = Heat Pump; RE = Remote Evaporator; BC = Brine
for Process Cooling Application.