EREBATM 17-21 Inverter Air-Cooled Liquid chillers & Reversible Air-to-Water Heat Pumps ■ Modbus the Domestic Hot Water production is requested (need DHW Direct access with Modbus connection to set, configure and sensor delivered in accessory). monitor the EREBTMA. - DHW Priority : When this input is closed, the unit is switching ■ Input remote contact : to Domestic Hot Water production regardless of the Space Heating demand and the current DHW schedule (need DHW - Remote On/Off Contact sensor delivered in accessory). - Remote Heat/Cool Contact: This switch is used to select - Anti-Legionella Cycle Request : When this input is closed, the Cooling Mode (contact opened) or the Heating Mode the Domestic Hot Water production is requested with the (contact closed). Anti-Legionella setpoint. - Remote Economic Contact: This switch is used to select - Summer Switch : This switch is used to select the Winter the regular Home Mode when contact is opened or the (contact opened) or the Summer Mode (contact closed). Economic Away Mode when contact is closed. - Energy Meter Input : This input is used to count the number - Safety Input Contact: This switch is normally closed type, of pulses received from an externalenergy meter (not according to configuration it is used either to stop the unit, supplied) to ban the Heating Mode or to ban the Cooling Mode when - External Alarm Indication Input : When this input is opened, contact is opened. alarm is tripped. This alarm is for information only, it does ■ Large choice of Input Contacts not affect the unit operation. Several functions can be configured by the installer. They ■ Output remote contact available allow to adapt to the environment of the machine: 2 Output contacts could be chosen on the NHC board, upon - Power Limitation / Night Mode: This switch is used to reduce configuration for the following purposes: the compressor maximum frequency to avoid noise. alert, alarm , standby, running (Cool, Heat, DHW or Defrost - Off Peak: If the General Purpose Contact, configured to Modes), indoor air temperature reached, electrical heat stage “Off Peak”, is closed then the Electric Heat Stages are not 2, electrical heat stage 3. allowed. - Loadshed Request: If the General Purpose Contact, configured to “Loadshed Request”, is closed then unit shall be stopped as soon as possible. - Solar Input: If the General Purpose Contact, configured to “Solar Input”, is closed then the unit is not allowed to run in Heating or DHW Mode because hot water is produced from a solar source. - DHW Request Switch from tank : When this input is closed, hydRaUliCmodUle The hydraulic module reduces the installation time. The unit is factory-equipped with the main hydraulic components required for the installation. The water heat exchanger and the hydraulic module are protected against frost down to -20°C,using an electric resistance heater (standard) and pump cycling. However, the use of MPG (Mono Propylene Glycol) can effectively protect the installation even in case of power failure Hydraulic module Expansion tank volume l 8 OUTLET Maximum water-side operating pressure kPa 300 I NLET Water pump Power input* kW 0.31 Nominal operating current draw* A 1.57 * Nominal conditions: evaporator entering/leaving water temperature 12°C/7°C, outside air temperature 35°C, evaporator fouling factor = 0 m² K/kW. Gross performances, not in accordance with EN14511-3:2013. These performances do not take into account the correction for the proportional heating capacity and power input generated by the water pump to overcome the internal pressure drop in the heat exchanger. Legend: 1 Mesh filter 4 Expansion tank 2 Water drain valve 5 Safety valve 3 Paddle flow switch 6 Circulator 328 328 CATALOGUE 2021