ALCA Series / 20 – 140 TR/R 22 – R407
Packaged Air-cooled chillers (ALCA series with scroll compressors) are designed and manufactured for use under different temperature conditions with desirable performance, high efficiency, low energy consumption, and fast and easy installation, and are used to provide central cooling systems in all construction and industrial projects and production processes.
Compressors used in these chillers are quite popular because of their low part-depreciation, compact design, high efficiency compared to reciprocating compressors, very low noise, and long lifespans.
Features of Air-Cooled chillers (ALCA Series):
- Having closed scroll compressors (Copeland, DANFOSS)
- Compressor model variety and number selectability based on applicability and existing sensitivities
- Proper operation under all weather conditions
- Using shell-and-tube type evaporators
- Using finned tube type condensers
- Equipped with axial-type assembled fan motors
- Having bodies of galvanized sheets with electrostatic coating
- Assembled fully with bolts & nuts without any welding
Conventional equipment installed on the machine:
- High- and Low-pressure mechanical control switches
- Compressor suction and liquid line valves for repair and maintenance
- Phase control for input phases and phase symmetry
- Microprocessor controller with digital screen (for 4- or 6-compressor models)
- Mechanical temperature switch to protect the evaporator
- Water-flow differential pressure switch
- High- and Low-pressure transmitters (for 4- or 6-compressor models)
- Safety valve on the liquid line
- Compressor electronic protection module
- High- and Low-pressure indicator mechanical gauges for each separate circuit
- Compressor heater
- capacity control based on the number of compressors and the Refrigeration load demand
- Connectability to the integrated BMS through the Modbus protocol (for 4- or 6-compressor models)
Custom-made possibilities:
Air-cooled scroll chillers designable to use different- capacity compressors in a circuit to reduce energy consumption in part-load cases
- Designability and producibility with digital inverter compressors
- Designability and producibility with separate condensers
- Designability with low-noise operation
- Designability with super low-noise operation
- Usability of different anti-corrosion coatings (e.g. Blygold, Heresite, Sakaphen, etc.) for condenser heat exchangers
- heatexchanger producibility with copper pipes, copper fins and coated fins (e.g. Blue, Gold, etc.)
- Usability of 0-10 V or 4-20 mA analog inputs for set-point variations
- Usability of micro-channel condenser heat exchangers
- Controllability of all equipment through PLC with such brands as Siemens, Schneider Electric, etc.
- Operability during all four seasons
- Spring-type shock absorbers
- EC-type condenser fans
- Condenser centrifugal fans for special applications
- Usability of electronic expansion valve to control the superheat rate under all working conditions (for 4- or 6-compressor models)
- Inter connectability of multiple chillers manageable as a single unit and spare chillers and working hours management
- Usability of an extra oil separator for each circuit
- Different dimension touch screens
- Hot water producibility (up to 100% heat recovery) to reduce energy consumption
- Usability of digital inputs for upstream control
- Usability of thermostats in the upstream
- Usability of protective mechanical equipment including propulsion line silencers (mufflers), suction line accumulators and liquid line receivers
- Usability of high- or low-pressure circulator pumps with the operability of one as a spare pump
- Installability of the evaporator’s water storage tank
- Usability of the Refrigeration water line hydraulic equipment (e.g. gauge, expansion tank, bleeding/safety valve, etc.)
- Installability of controlling equipment to reduce energy consumption
- Installability of soft starters
- Usability of anti-freeze heater on the evaporator
- Installability of economizer using plate heat exchangers
- Installability of mechanical filters on suction and liquid lines
- Usability of protective grids on the machine lower levels and on the condenser coils
- Usability of electronic expansion valves in Refrigeration circuits
- Installability of quick-connection hydraulic equipment
- Usability of water-seal chambers to protect condenser fans and coils in non-operational seasons
