EBHV Series with R134 a fleon

AIR COOLED WATER CHILLERS

Screw compressors • Microprocessor controlled

For air-conditioning systems,
Process cooling,
Industrial plants and
Various purpose

ERBAY Water Chillers are designed to outdoor installation and
provide chilled water leaving temperatures which are given on
capacity tables in our factory carrying out EN ISO 9001:2008 Quality
Management System. The Units are supplied to ready for installation.
All connections, oil and refrigerant charge and required tests are
made in our factory. Our units are in conformity with health and safety
requirements of following European Union directives and relevant
hormonized standarts.
Machinery Directive (MD) : 2006/42/EC
Low Voltage Directive (LVD) : 2006/95/EC
Electromagnetic Compatibility Directive (EMC) : 2004/108/EC
Pressure Equipment Directive (PED) : 97/23/EC
The capacity of the Units varying between 112,7 kW and 769,7 kW
and it’s composed of the following parts;

Cooling Compressor : 1 or 2 pieces semi - hermetic compact screw
compressors, working with R134a refrigerant are used according
to customer request. Screw compressors as it’s characteristics can
operate without maintenance need for a long time. Maintenance of the
screw compressors are quite simple because of the less amount of the
moving parts in it. Screw compressors are equipped with discharge
shut-off valve, check -valve that prevents to return back of the refrigerant
from the discharge line, oil level switch, oil sight glass, oil separator, oil
filter, crankcase heater, capacity control solenoids, vibration dampers,
motor protection device and temperature sensors (PTC). Required
power supply is 3 ph, 400 V, 50 Hz.

Condenser : Air cooled condensers are manufactured by pipes and
aliminum fins. Current overload protected, high efficient direct drive axial
fans which have noiseless bearing are mounted on the Unit to provide
condensation of the refrigerant.

Evaporator: Direct expansion evaporator is manufactured in Shell &
Tube form and special high eficient copper tubes are fixed to steel
tubesheet holes with tube expander method. Its’ allowed to maintenance
and clean up because of the removable tube bundle. Evaporators are
in conformity with EN 14276-1 and EN 13445 standarts and designed
for chilling water and glycol brines. External surface of evaporators and
suction lines are insulated with insulation material with suitable thickness.

Electrical Control Panel : The panel is designed to IP54. To operate the
Unit automatically and securely, the panel is composed of two
different section. The first section is power section and the other one
is control section.The panel is equipped with enough number of
contactors, thermics,fuses and on-off switchs. The panel and wiring are
in conformity with EN 60204-1 standart. Required power supply is
3 ph, 400 Volt, 50 Hz.

Microprocessor Control System : Microprocessor control system is
used on the Unit. By means of this; entering and leaving wate r
temperatures,refrigerant pressures on the suction and discharge lines,
occured superheat temperature, operating times of compressors, all
faults occured on the system and all alarm history can be seen on the
digital screen and also capacity control can be made easily. Besides
condenser fans are controlled automatically depending on the ambient
temperature and the operating times of each compressor is balanced
so optimum efficient operation of the Unit is provided.

Components of the Cooling Circuit : To operate the Unit automatically
and securely; electronic expansion valve, drier-filter, sight glass, relief
valve, flow - switch, low and high pressure transmitters and shut-off
valves are included.