Water loop roof top unit
CIATrtc electronic control
and a pGD1 terminal (local control console) for the sensors, for maintenance and system start-up. The control board is equipped with an RS485 field-bus used to manage additional components. A communication card (optional) allows the control board to be connected to a centralised management system (CMS). It also manages the local connection between units on a pLAN and information to be exchanged between the units, for a maximum of 15 units.
External air damper for the renewal of fresh air according to the temperature of the mixed air (constant) or the air quality sensor (variable). Mixing box for thermal, enthalpic or thermo-enthalpic free cooling. Refrigerating recovery circuit for the renewal of air. Rotary heat exchanger. Auxiliary electric heater: two-stage with on/off control, or single-stage with proportional control. Auxiliary hot water coil with three-way valve with proportional control. Gas burner with proportional control. Humidifier with on/off or proportional control. Air flow rate controller (for centrifugal fans). Fouled filter detector. Smoke detection unit. Refrigerant leak detector. Air quality sensor to measure CO2 levels and volatile organic compounds (VOC). Electrical energy meter and calculation of the cooling and heating capacities.
This terminal, installed on the electric panel, allows: The initial programming of the unit. The modifi cation of operating parameters. Unit ON / OFF. The selection of the operating mode. The setting of setpoints. On-screen display of controlled variables and sensor values measured. On-screen display of active alarms and historical record of alarms.
Operating mode selection: COOLING/HEATING. Setpoint selection. Continuous monitoring of operating parameters. Display of values measured by the sensors. Compressor time delays. Antifreeze protection. Evaporation and condensation pressure control via a threeway valve. Control of the supply air temperature. Setpoint compensation based on the outdoor temperature. Hourly and weekly time schedule. Fire protection. Diagnostic of faults and general alarms.
The terminal can also be directly connected and remotely controlled via a telephone cable from up to 50 m away. For greater distances, please check the options.
This terminal can be installed on the electric panel, instead of pGD1 terminal. In this case, the remote connection of the pGD1 terminal is posible. Please consult “Control options”.
TCO terminal allows: This control can be used to manage additional components such as: Electronic EC outdoor fans with variable speed control. Supply air fans and EC return plug fan with CAV or VAV control. Unit ON / OFF. The selection of the operating mode. The setting of setpoints. The display of temperatures and humidity of the installation, outdoor temperature, supply air temperature, CO2 probe and opening of the outdoor damper. On-screen display of alarms codes.
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
SPACE AQUA XF