High and low pressure switches. Control of the compressor discharge temperature. Check valve integrated into the compressor discharge. Main door switch. Thermal-magnetic protection for the compressor and fan motor supply line. Automatic control circuit switch.
Setpoint compensation based on the outdoor temperature. Hourly and weekly time schedule. Fire protection. Diagnostic of faults and general alarms.
Complete electrical cabinet, fully wired. Insulated vertical unit cover to prevent condensation. IP55 protection. Mechanical ventilation managed from the electrical cabinet to control the temperature and protect the components. Transformer for power supply without neutral. Main earth connection. Compressor and fan motor switches.
CIATrtc electronic control
a pGD1 terminal (room control console), for maintenance and system start-up, and sensors. The control board uses an RS485 field-bus to manage additional components. A communication card (optional) can be used to connect the control board to a centralised management system (CMS). It also manages a local connection between units on a and information to be exchanged between the units, up to a maximum of 15 units.
This control is used to manage additional components, such as: EC electronic outdoor fans with variable speed control. EC supply air and return air plug fans with CAV or VAV control. External air damper for renewing the fresh air, based on the mixing air temperature (constant) or the air quality sensor (variable). Mixing box for thermal, enthalpic or thermo-enthalpic free cooling. Refrigerating recovery circuit for renewing the air. On/off rotary heat exchanger. Auxiliary electric heater: two stages with on/off control, or one stage with proportional control. Auxiliary hot water coil with 3-way valve with proportional control. Gas burner with proportional control. Humidifier with proportional on/off control. Air flow rate controller (for centrifugal fans). Filter fouling level detector. Smoke detection unit. Refrigerant leak detector. Air quality sensor for measuring CO2 and volatile organic compounds (VOCs). Electrical energy meter and calculation of cooling and heating capacities. Zone control for 2 independent areas with dampers
The terminal installed in the box is used to: Carry out initial programming of the unit for system start-up. Modify the operating parameters. Select the operating mode. Adjust the setpoints. Display controlled variables and sensor values. Display alarms on the screen. The terminal can be directly connected and operated up to 50 m away using a phone cable. For greater distances, please consult the options.
Selection of the operating mode: COOLING/HEATING. Selection of the setpoint. Continuous monitoring of operating parameters. Display of values measured by the sensors. Compressor time delays. Defrost management (on heat pump units). All-season operation using evaporation and condensation pressure monitoring as standard. Control of the supply air temperature.
The TCO terminal installed in the electrics box is used to: Switch the installation on/off. Adjust the setpoint. Select the HEATING/COOLING operating mode. Display the installation's temperatures and humidity, the outdoor temperature, supply air temperature, CO2 sensor and opening of the external air damper. Display alarm codes.
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
SPACE PF 415 - 1200