Nimbus M NET R32 Hybrid Installation Manual UK

Commissioning 1.1.1 HV

Commissioning 1.1.1 HV input 2 (input configurable to 230 V) Press the selector . Turn the selector to choose the desired item. 1 Absent: input not active. 2 DLSG: Input not active (0 V), the heating elements are disabled in every operating cycle. 3 SG2: input 2 for the Smart Grid Ready protocol (refer to the paragraph “Standard SG ready”). 4 External switch off signal: switches the machine OFF. Every heating, cooling and DHW request is interrupted while the anti-freeze protection logics are active if Par. 1.0.4 Hybrid Mode (Hybrid Mode) is set to “Only HP”. Otherwise, only the boiler will remain enabled for space heating and domestic hot water requirements. 5 Photovoltaic integration: input not active (0 V), no integration. Input active (230 V), the energy surplus is used to increase the DHW set-point by the quantity defined through parameter 1.20.0 PV offset DHW setpoint temperature. If the DHW calorifier has reached the new set-point, it is possible to use this energy to increase the set-point of the inertial storage tank (if present) through parameter 20.4.4 Buffer electric integration offset or of the heating / cooling function to the comfort set-point. To this aim the function uses only the heat pump. Press the selector to confirm. 1.1.3 AUX input 1 Press the selector . Turn the selector to choose the desired item. 0 None. 1 Humidistat sensor: when the contact is closed, the heat pump is turned off during the cooling cycle. Use Par. 1.1.9 Humidity input zone to set the zone pumps that will stop as a result. 2 Heat / Cool by external control: when the contact is closed, the operating mode is set to cooling; when the contact is opened, the operating mode is set to heating. 3 Room thermostat HC3: the signal is interpreted as a contact for a thermostat in zone 3. When the contact is closed, it is sent as a heat request for zone 3. 4 Safety thermostat: connect an underfloor safety thermostat to the contact. When the contact is closed, water circulation is interrupted. 5 Photovoltaic integration: input not active (0 V), no integration. Input active (230 V), the energy surplus is used to increase the DHW set-point by the quantity defined through parameter 1.20.0 PV offset DHW setpoint temperature. If the DHW calorifier has reached the new set-point, it is possible to use this energy to increase the set-point of the inertial storage tank (if present) through parameter 20.4.4 Buffer electric integration offset or of the heating / cooling function to the comfort set-point. To this aim the function uses only the heat pump. Press the selector to confirm. 1.1.4 AUX input 2 Press the selector . Turn the selector to choose the desired item. 0 None. 1 Humidistat sensor: when the contact is closed, the heat pump is turned off during the cooling cycle. Use Par. 1.1.9 Humidity input zone to set the zone pumps that will stop as a result. 2 Heat / Cool by external control: when the contact is closed, the operating mode is set to cooling; when the contact is opened, the operating mode is set to heating. 3 Room thermostat HC3: the signal is interpreted as a contact for a thermostat in zone 3. When the contact is closed, it is sent as a heat request for zone 3. 44 / EN

Commissioning 4 Safety thermostat: connect an underfloor safety thermostat to the contact. When the contact is closed, water circulation is interrupted. 5 Photovoltaic integration: input not active (0 V), no integration. Input active (230 V), the energy surplus is used to increase the DHW set-point by the quantity defined through parameter 1.20.0 PV offset DHW setpoint temperature. If the DHW calorifier has reached the new set-point, it is possible to use this energy to increase the set-point of the inertial storage tank (if present) through parameter 20.4.4 Buffer electric integration offset or of the heating / cooling function to the comfort set-point. To this aim the function uses only the heat pump. Press the selector to confirm. 1.1.5 Electric heat sources blocking type Press the selector . Turn the selector to choose the desired item. 0 None. The company block function is not specified. 1 Soft Lock-Out. The energy provider can send a signal to switch off the heat pump. 2 Hard Lock-Out. The energy provider shuts off the power supply to the heat pump. 3 Hybrid Lock-Out. The energy provider sends a signal and disconnects the power supply to switch off the heat pump. Press the selector to confirm. 1.1.7 CH Press Detection Device Press the selector . Turn the selector to choose the desired item. 1 Pressure switch. presence of pressure switch for water pressure control(hydraulic module setting) 2 Pressure sensor. presence of pressure sensor for water pressure control(hydraulic module setting) Press the selector to confirm. 1.1.8 System flow T selection Press the selector . Turn the selector to choose the desired item. 0 HP water flow temp: LWT probe is used as water flow probe by the system 1 System flow T: HC flow probe is used as water flow probe by the system Press the selector to confirm. 1.1.9 Humidity input zone This parameter defines to which zones the value of the humidity read by the Energy Manager has to be set. Press the selector . Turn the selector to choose the desired item. 0 All zones 1 Zone 1 2 Zone 2 3 Zone 3 4 Zone 4 5 Zone 5 6 Zone 6 7 Zones 1 , 2 8 Zones 3 , 4 9 Zones 5 , 6 10 Zones 1,2,3 11 Zones 4,5,6 12 No zone set Press the selector to confirm. 1.2 OUTPUT CONFIGURATION 1.2.0 AUX output 1 Press the selector . Turn the selector to choose the desired item. 0 None. 1 Fault alarm: the contact is closed in case of a system error. 2 Humidity Control: the contact is closed when the AUX1 input is set as a humidistat and the contact is closed. 3 External heat and DHW request: the contact is closed to generate a heat request towards an external source for space heating and DHW production. 4 Cooling request: the contact is closed to generate a cooling request towards an external source. 5 DHW request: the contact is closed to generate a heat request towards an external source for DHW. 45 / EN