TRAC – TRAF – TRAH
Uniflair Air Cooled, Free Cooling Chillers and heat pumps with scroll compressors and R410A refrigerant.
• All-in-one units that are easy to design and install, fully configurable for continuous and quiet operation in a variety of applications and environmental conditions.
• Uniflair Coolers are designed for Tier III and IV data center installations
Main components
Electrical panel
• IP54 class
• maximum internal temperature control
• auxiliary transformer
• general auxiliary cut-out switch
• magneto-thermal protection switches for alarm signalling on compressors
• fuses for fan speed control protection
• safety motor and remote cut-out switches for pump protection.
Microchannel condensing coils
• TRAC/F models up to 260 kW
• lower refrigerant content
• CAPEX reduction
Finned tube condensing coils
• TRAC/F models from 300 kW and all TRAH models
• flexibility in movement and maintenance
Free cooling coils
• TRAF models only
• aluminium fins and mechanically expanded copper tubes
Microprocessor controller
• 7” touch screen local user interface
• proprietary PID algorithm for chilled water supply temperature regulation •
Chilled water production down to -10°C
• advanced evaporator freeze protection
• standard or VSD on-board pump rotation and management
• integrated features:
• LAN card to connect units
• SNMP, Modbus TCP/IP
• USB connection for data download
• Clock card
• external motorised isolation valve management
Hermetic Scroll compressors
• oil bypass valve and line
• integrated soft start
• power factor correction capacitor
• integrated thermal protection
• crankcase heaters and inverter with oil heating function
• anti-vibration supports
Refrigerant circuits
Single (**21 model) or dual (**42) refrigerant circuit in accordance with EC standards (PED 97/23/ CE):
• filter drier
• liquid sight glass
• expansion valve
• discharge and suction cocks on the compressor
• pressure switches
• high and low pressure transducers
Acousti-Composite fans
• sickle blade axial fans
• statically and dynamically balanced
• composite materials for high efficiency
• low acoustic impact
• protective safety grilles
Optional fans with Electronically Directed (EC) motors
• higher energy efficiency
• lower noise at part load
• higher ambient temperature operation
Water side heat exchanger
• stainless steel brazed plate heat exchanger
• insulated with closed cell expanded polyurethane
Main Configurable Options
Dual and/or separate power supply
• Dual power supply with automatic transfer switch (ATS) for full redundancy with no single point of failure per TIER III and IV recommendations
• Separate power supply from UPS for control of unit and compressor(s) for 2-minute rapid start-up and emergency operation
• Automatic dual and separate power supply from UPS for backup and Fast Restart
Acoustic options
Aquaflair air-cooled, scroll compressor midcoolers can be offered with different options to reduce the noise level:
• Basic version (standard): enclosures for
compressors
• UltraQuiet version (optional): soundproof enclosures for compressors and modulating condensation control algorithm for fans based on noise reduction
Extra options
Aquaflair chillers can be equipped with special devices to operate in specific ambient conditions
• For aggressive ambient conditions: metal safety grilles and filters and coil treatments (electrolytic pre-painting treatment)
• Low ambient temperature option (standard for TRAF/H models): electric heaters in the electrical panel
Adiabatic kit
• Available for TRAC/F models from 300 kW
• Based on the natural process of water
evaporation
• More energy efficiency
• Maximisation of free cooling for TRAF models
Onboard pumps
Onboard pumps only allow direct contact with the main circuit. Available options are:
• Integrated hydronic system with one or two systems
of circulation pumps (1 + 1 redundant)
• Integrated hydronic system with one or two (1 + 1 redundant) inverter-driven circulation pumps and pressure transducers for greater efficiency, flexibility and modularity
Heat recovery
• Partial heat recovery: the unit is equipped with a system to recover the overheating of the compressors
• Total heat recovery (TRAC only): the unit is equipped with a system to recover the condensing capacity
Free cooling options
• Intelligent free cooling to increase efficiency by utilizing redundant units
• Glycol-free free cooling: integrated system that separates the main water system (pure water) from the free cooling circuit (water + glycol)
