ISPK Modular compact heat pumps Electronic control CIATrtc control TheCIATrtc control consist of a µPC MEDIUM control board, Optional function: sensors, a pGD1 graphic terminal and a TCO user terminal This control is used to manage addition components such as: (optional). nExternal air damper for the renewal of fresh air, depending This system uses a RS485 field-bus to manage additional on the temperature of the mixed air or depending on the air components. quality sensor. A BMS card (optional) allows the control board to be connected nMixing box for thermal, enthalpic or thermoenthalpic free- to a centralised technical management system. cooling. It also manages a local connection between units through a nAuxiliary electrical heaters: two-stage with on/off control or pLAN network (µPC MEDIUM Local Area Network), allowing single-stage with proportional control. data and information to be exchanged between units, for a nHot water coil with 3-way valve, with proportional or on/off maximum of 15 units. control. nHumidifier with proportional or on/off control. nClogged filter pressostat. nRefrigerant leak detector. nAir quality sensor for measuring CO .2 nEnergy meter and calculation of the cooling and heating capacities. pGD1 terminal: This terminal, fitted as standard on the electrical cabinet, is very easy to use. It provides detailed explanations of control in easy to understand English. No decoding is required. Only 6, large, easy-to-use buttons are required to maneuver through the entire menus. Thisterminal is used to: nCarry out initial programming of the unit. nModify operating parameters. nSwitch the unit ON / OFF. Main functions: nSelect the operating mode and adjust the setpoints. nSelection of setpoint and operating mode: HEATING / nDisplay the variables controlled and sensor values measured. COOLING / AUTO / VENTILATION . nDisplay the current alarms and their historical record. nContinuous control of the operating parameters. nDisplay of the values measured by the sensors. nCompressors time delays. TCO user terminal (optional): nDefrosting management (in heat pump units). This terminal can be installed on the nControl of the supply air temperature. electrical cabinet, instead of pGD1 All-seasons operation via the condensation and evaporation terminal. In this case, the remote n pressure control. connection of the pGD1 terminal is posible. Please consult “Control options”. The management of the unit in cooling mode is based on the principle of a high floating pressure. The condensation TCOterminal is used to: pressure setpoint is continually calculated depending on the nSwitch the unit ON / OFF. outdoor temperature. This pressure is regulated by adjusting nSelect the operating mode. the air flow on the oudoor fans. Adjust the setpoints. n n Setpoint compensation based on the outdoor temperature. Display the installation’s temperatures and humidity, outdoor n nHourly and weekly schedule. temperature, supply air temperature, CO sensor and opening 2 nFire protection. of the outdoor damper. nDiagnosis of faults and general alarm. n Display alarms codes. CATALOGUE 2021 271 271 subSMBsub dleiFsubNALpsubNALp