SC Air-cooled condensing units Electronic controls ■ AVANT/AVANT+ electronic control (standard)Optional functions: Available in two versions: If the indoor unit connected to the SC unit has these options: - AVANT: models 90 to 182 - Control of the auxiliary electrical heaters. - AVANT+: models 200 to 600 - Proportional control of an auxiliary hot water coil. Note: Models 90 to 182 can incorporate the AVANT+ version - Humidity control. as an option. - Fire protection. AVANT / AVANT+ controlis an electronic module with- Control the opening of the outdoor air damper. microprocessor comprised of a control board and a TCO user - Management of free cooling. terminal that ensures the following functions: - Selecting the operating mode: - Detection of clogged filters and air flow control. • HEATING - Connection to a centralised technical management system (BMS) for supervision (please see “Options” chapter). • COOLING pGD1 Terminal (optoal) • AUTO Optionally, this control can have a terminal for pGD1 • DEHUMIDIFICATION maintenance that facilitates the initial scheduling of the • FAN (no icon). unit,the modification of the operating parameters and the - Changing the setpoint. description of the alarms produced. - Permanent control of the operating parameters. - Display the values measured by the sensors. - View the codes relating to the alarms triggered. - Compressor runtime balancing. - Control the compressor discharge temperature using a probe. - Control the ambient temperature using the probe incorporated into TCO terminal. This probe can be replaced by a return or ambient air probe installed in the control board. - All-seasons operation via the condensation and evaporation ■ CIATrtc electronic control (optional) pressure control. - Control the supply air outlet temperature to improve the Electronic module with microprocessor comprised of a control thermal comfort level of the installation. board and a pGD1 graphic terminal installed over the unit electric panel and accessed using a polycarbonate collapsible • I n cooling mode, this control prevents excessive drops in window. the ambient temperature. Optionally this terminal can be replaced by a TCO user • I n heating mode, it preventsstratification of the hot air terminal for installation inside of the premises. In this case the masses. TCO terminal are not allowed to access parameters control - The following features improve the energy management of and time schedule. the installation: The management of the ambient temperature is controlled via a NTC ambient probe. This probe can be replaced by 1 or 2 RS485 probes. Defrosting management (in heat pump units). A smart In addition to the functions described in AVANT/ defrosting option that reduces the energy consumption AVANT+ control, depending on the indoor unit of the heat pump, by adjusting the time between connected to the SC unit, this control is used defrosting operations to the actual needs of the unit. to manage optional components such as: Setpoint compensation based on the outdoor - Electronic plug-fans. temperature. This function prevents thermal “shock” - Enthalpic or thermo-enthalpic free cooling. between the inside and outside of the premises whilst providing significant energy savings - Smoke detection unit. Time schedule that reduces energy consumption, - Air quality probe for measuring CO and/or vo2 latile organic adjusting the air conditioning requirements of the compounds. building throughout the day. - Energy meter. TCO terminal has a schedule programmer with an - Refrigerant leak detector. intuitive graphic interface that allows 6 time slots to It also manages a local connection between units through be chosen for each day of the week. A change in the a pLAN network (µPC MEDIUM LocalArea Network), setpoint temperature or the disconnection of the unit thus allowing communication of data and information for can be scheduled in these time slots (according to the a maximum of 15 units.This enables the reduction of the building occupancy). number of pGD1 terminals, since a single shared terminal can monitor all control boards. It also allows to share the reading of some probes. CATALOGUE 2021 281 281