6
AIR COOLED WATER CHILLERS
– AXIAL FANS
EKWXA/EKWXBA
11.15 207443 Rev104
EKWXBA compact units are reversible air cooled water / heat water production and designed for its
installation outdoor. It is provided with R-410A refrigerant charge already for its installation. These units
are manufactured under strict quality control throughout the whole process and when they are finished
they are tested in the factory, checking the correct working of all their components.
1. Remote Control System.
LCX Control System
- Main on-off switch.
- Device control phase sequence.
- Monopolar magnetothermal of control protection.
- Monopolar magntothermal of protection of
compressors crankcase resistors.
- Safety and isolation transformer for 24
Vac power to control itself.
- Contactors for compressors and outdoor fans.
- Controller with LED display of 3 ½ digits and 8 icons
to show all the information on the display itself.
- Display by default: Outdoor water temperature.
- Self-diagnostics with alarm code display.
Main Functions of the Control System
- Regulation Water temperature.
- Counting the hours of operation for maintenance of compressors and pumps if the unit is built with this
optional.
- Visualization of inlet and outlet water temperatures on the unit and Condenser and Evaporation
pressures.
- Timings of starts of compressors.
- Security protection of High Pressure.
- Compressors Electronic protection.
- Outdoor fans protection.
- Water flow protection.
- Intervention for antifreeze security.
- ON/OFF remote.
- Remote changing of operation mode Cool/Heat.
- Condensation and evaporation pressure control with 2 ventilation stages..
- Reversible valve of cycle inversion (Only for het pump models).
- Discharge maneuver. Start and ending of Pressure discharge. Control of run times between defrosts.
COMPONENT DESCRIPTIONS
GENERAL CHARACTERISTICS
