references
Water chillers
DESCRIPTION
Compressors
OF THE MAIN COMPONENTS
Connect Touch control module
- User interface with 5 inch touchscreen - Intuitive, user-friendly navigation using icons - Clear text display of information available in eight languages (F-GB-D-NL-E-I-P + Chinese)
- Hermetic SCROLL type - Electronic motor overheating protection - Crankcase heater - Mounted on anti-vibration mounts
Evaporator
- Exchanger with asymmetrical brazed plates - Plate patterns optimised for high efficiency - 19 mm armaflex thermal insulation
Condenser
- Air-cooled exchanger, all-aluminium micro-channel coil - Axial fans with composite blades offering an optimised profile, fixed speed (ST version) or variable speed (HE version) - Motors – IP 54, class F
Refrigerating accessories
- Dehumidifier filters with rechargeable cartridges - Hygroscopic sight glasses - Electronic expansion valves - Service valves on the liquid line
Control and safety instruments
- Low and high pressure sensors - Safety valves on refrigerating circuit - Water temperature control sensors - Evaporator antifreeze protection sensor - Factory-fitted evaporator water flow rate controller
Electrical cabinet
- Electrical cabinet with IP 54 protection rating (IP44 for the entire unit) - A connection point without neutral - Front-mounted main safety switch with handle - Control circuit transformer - 24 V control circuit - Fan and compressor motor circuit breaker - Fan and compressor motor contactors - Connect Touch microprocessorcontrolled electronic control module - Wire numbering - Marking of the main electrical components
Frame
Frame made from RAL 7035 light grey & RAL 7024 graphite grey painted panels
The electronic control module performs the following main functions: - Regulation of the chilled water temperature (at the return or at the outlet) - Regulation of the water temperature based on the outdoor temperature (water law) - Regulation for low temperature energy storage - Second setpoint management - Complete management of compressors with start-up sequence, timer and runtime balancing - Self-adjusting and proactive functions with adjustment of settings on drift control - In-series staged power control system on the compressors according to the thermal requirements - Management of compressor short-cycle protection - Frost protection (exchanger heater option) - Phase reversal protection - Management of occupied/unoccupied modes (according to the time schedule) - Compressor and pump operating time balancing - Management of the machine operation limit according to outdoor temperature - Noise level reduction device (night mode according to the user programme) with limitation of compressor capacity and fan speed - Diagnosis of fault and operating statuses - Management of a fault memory allowing a log of the last 50 incidents to be accessed, with operating readings taken when the fault occurs - Blackbox memory - Master/slave management of the two machines in parallel with operating time balancing and automatic changeover if a fault occurs on one machine - Weekly and hourly time schedule for the machine, including 16 periods of absence - Pump standby based on demand (energy saving) - Calculation of the water flow rate and operating pressure (hydraulic module version) - Electronic adjustment of the water pump speed and water flow rate (variable speed pump option) - Display of all machine parameters (3 access levels, User/Maintenance/Factory, passwordprotected): temperature, setpoints, pressures, water flow rate (hydraulic version), runtime. - Display of trend curves for the main values - Storage of maintenance manual, wiring diagram and spare parts list.
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
85
AQUACIATPOWER LD