EDM SYSCROLL 20 35 AIR S 1GB05.13

|
SyScroll 20-35 Air
4
General
The new SyScroll Air air cooled water chillers have been
designed and optimized to operate with R410A refrigerant
uid. They are available in cooling only CO and heat pump
HP versions.
Each version consists of 4 sizes and covers a nominal
cooling capacity range from 20.0 to 33.0 kW and a nomi-
nal heating capacity range from 21.0 to 35.0 kW.
All units are equipped with one scroll compressors.
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 4.0 l/kW. An ex-
ternal water tank can be supplied as accessory for eld
installation. All units are equipped with a multistage cen-
trifugal pump as standard.
A fan speed controller is included in the standard equip-
ment allowing the unit operating in cooling mode at low
ambient temperature and in heating mode at high ambi-
ent temperature.
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 protection
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 tted with an inher-
ent 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 en-
sure a good protection against freezing 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.
Air cooled condenser coil
Outdoor heat exchangers are nned tubes coils. Coils
are built with internally grooved copper tubes expanded
into corrugated aluminium ns. Fin pitch is differentiated
between the two coil conguration (condensing only, re-
versible) in order to optimize operating conditions.
Specications
Sy Scroll
Air
-
SIZES
S
CO
HP
BC
PH
-
-
CO = Cooling Only; HP = Heat Pump; BC = Brine Application; Version - =
BLN.