references
Water chillers
DESCRIPTION
Compressors
- Hermetic SCROLL
OF THE MAIN COMPONENTS
- management of the machine operation limit according to outdoor temperature - diagnosis of fault and operating statuses - management of a fault memory allowing a log of the last 20 incidents to be accessed, with operating readings taken when the fault occurs - master/slave management of the two machines in parallel with balancing of the running times and automatic changeover if a fault occurs on one machine - machine time schedule - display and access to the operating parameters via a multilingual LCD screen with 4 lines of 24 characters
- built-in electric motor cooled by intake gases - motor protected by internal winding thermostat - placed on anti-vibration mounts
Evaporator
- brazed plate exchanger - stainless steel plates - plate patterns optimised for high-efficiency - armaflex thermal insulation
Condenser
- air-cooled exchanger, all-aluminium micro-channel coil - propeller fans with airfoil blades - IP 54, class F motors
Remote control
CONNECT2 is equipped as standard with an RS485 serial port offering a range of remote management, monitoring and diagnostic options via the communication bus. Several contacts are available as standard, enabling the AQUACIATPOWER to be controlled remotely by wired link: - automatic operation control: when this contact is open, the machine stops - setpoint 1/setpoint 2 selector: when this contact is closed, a second cooling setpoint is activated (energy storage mode, for example) - setpoint adjustable via 4-20 mA signal: this input is used to adjust the setpoint in COOLING mode - compressor load shedding: closing the contact(s) concerned allows the power or refrigerating consumption of the machine to be limited by stopping one or more compressors - water pump 1 and 2 control: these outputs control the switches for one or two water pumps - fault reporting: this contact indicates the presence of a major fault which has caused one or both refrigerating circuits to stop
Refrigerating accessories
- dehumidifier filters with rechargeable cartridges - hygroscopic sight glasses - Electronic expansion valves
Control and safety instruments
- low and high pressure sensors - safety valves on refrigerating circuit - water temperature control sensors - evaporator antifreeze protection sensor - factory-assembled evaporator water flow controller
Electrics box
- IP 44 - 400V-3Ph-50 Hz power supply + earth (+10% / -10%) - main safety switch with handle on front - control circuit transformer - fan and compressor motor circuit breaker - fan and compressor motor contactors - CONNECT2 microprocessor-controlled electronic control module - wire numbering - marking of the main electrical components - RAL 7035
Power control
In-series staged power control system on the compressors
Frame
Frame made from RAL 7024 and RAL 7035 painted panels
CONNECT2 electronic control module
The CIAT electronic control module performs the following main functions: - chilled water temperature control - regulation of the water temperature based on the outdoor temperature (water law) - regulation for energy storage low temperature
- second setpoint management - complete management of compressors sequence, timer and runtime balancing with start-up
- self-adjusting and proactive functions with adjustment of parameters on drift control - in-series staged capacity-reduction system for compressors according to refrigerating requirements - management of compressor short-cycle protection
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
129
AQUACIATPOWER
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