Inverter Air-Cooled Liquid chillers & Reversible Air to Water Heat Pumps
Direct access with Modbus connection to set, configure and monitor the EREBA.
Input remote contact :
- Remote On/Off Contact - Remote Heat/Cool Contact: This switch is used to select the Cooling Mode (contact opened) or the Heating Mode (contact closed). - Remote Economic Contact: This switch is used to select the regular Home Mode when contact is opened or the Economic Away Mode when contact is closed. - Safety Input Contact: This switch is normally closed type, according to configuration it is used either to stop the unit, to ban the Heating Mode or to ban the Cooling Mode when contact is opened.
- DHW Priority : When this input is closed, the unit is switching to Domestic Hot Water production regardless of the Space Heating demand and the current DHW schedule (need DHW sensor delivered in accessory). - Anti-Legionella Cycle Request : When this input is closed, the Domestic Hot Water production is requested with the AntiLegionella setpoint. - Summer Switch : This switch is used to select the Winter (contact opened) or the Summer Mode (contact closed). - Energy Meter Input : This input is used to count the number of pulses received from an external energy meter (not supplied) - External Alarm Indication Input : When this input is opened, alarm is tripped. This alarm is for information only, it does not affect the unit operation.
Large choice of Input Contacts
Several functions can be configured by the installer. They allow to adapt to the environment of the machine: - Power Limitation / Night Mode: This switch is used to reduce the compressor maximum frequency to avoid noise. - Off Peak: If the General Purpose Contact, configured to “Off Peak”, is closed then the Electric Heat Stages are not 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.
Output remote contact available
2 Output contacts could be chosen on the NHC board, upon configuration for the following purposes: alert, alarm , standby, running (Cool, Heat, DHW or Defrost Modes), indoor air tenperature reached, electrical heat stage 2, electrical heat stage 3.
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
- DHW Request Switch from tank : When this input is closed, the Domestic Hot Water production is requested (need DHW sensor delivered in accessory).