Nimbus M NET R32 Hybrid Installation Manual UK

Commissioning 1.4 DHW

Commissioning 1.4 DHW SECONDARY HEAT SOURCE ACTIVATION 1.4.0 DHW aux heat source activation logic Press the selector . Turn the selector to choose the desired item. 0 Heat integr. and backup: in domestic hot water production cycles the auxiliary sources (boiler or output auxiliary contacts) can be activated in combination with the heat pump, but also when the heat pump is not available. 1 HP failure backup: in domestic hot water production cycles the auxiliary sources (output or boiler auxiliary contacts) can be activated only when the heat pump is not available. Press the selector to confirm. 1.4.2 Delay timer Time required for starting the calculation of the DHW integration with the auxiliary sources or with the heating elements. 1.4.5 DHW modulation setpoint Press the selector . Turn the selector and select the temperature set-point for the boiler in domestic hot water mode. Press the selector to confirm. 1.5 ENERGY MANAGER PARAMETER 1 1.5.2 Text for boiler disabling Used only for hybrid system: the system excludes the Boiler when the outdoor temperature is higher than the value set. 1.5.3 Text for HP disabling The system excludes the heat pump in heating mode if the outdoor temperature is below the set value. 1.5.4 Hp disabling out temp DHW The system excludes the heat pump in domestic hot water mode if the outdoor temperature is below the set value. 1.4.3 Release integral threshold Activation threshold for DHW integration expressed in °C x min. 48 / EN

Commissioning 1.5.5 External temperature correction Compensation of the temperature reading of the external sensor. 1.5.6 Boiler control logic Press the selector . Turn the selector to choose the desired item. 0 Power: the boiler power is adjusted to automatically supply the required comfort level. 1 Temperatura: the setting of the boiler temperature setpoint privileges efficiency. Press the selector to confirm. 1.6 WATER CIRCULATION 1.6.0 CH pump prerun time Defines the pre-circulation time of the primary circulation pump to detect the presence of flow in the heating circuit. 1.6.1 Time for prerun new attempt Defines the stand-by time of the circulation pump between successive pre-circulation attempts. 1.6.2 CH pump overrun Post-circulation time. 1.6.3 Pump speed control Press the selector . Turn the selector to choose the desired item. Select the circulation pump speed: 0 Low speed 1 High speed 2 Modulating Press the selector to confirm. 1.6.4 Antifreeze HP circulator control Press the selector . Turn the selector to choose the desired item. Select the circulation pump speed during the heat pump anti-frost cycle: 0 Low speed 1 Med speed 2 High speed Press the selector to confirm. 1.7 HEATING CYCLE 1.7.1 Boost Time Defines the delay with which the water delivery set-point during heating is increased in AUTO mode. Intervenes only when the temperature control is active and set to “Devices ON/OFF” (see parameters 4.2.1 Thermoregulation/5.2.1 Thermoregulation/6.2.1). Defines the delay with which the delivery set-point temperature is increased by 4°C (up to maximum 12°C). If the value is 0 the function is not active. 1.7.2 FlowT HP Offset Defines the value in °C to be added to the delivery set-point temperature of the heat pump to offset the heat losses along the hydraulic connections between the outdoor unit and the hydraulic module. 1.7.3 Boiler flow temperature offset Defines the increase in °C to be added to the delivery set-point temperature of the boiler for offsetting the heat losses along the hydraulic pipes between the boiler and the hybrid hydraulic module when the heating mode is active and the boiler control logic has reached the adequate temperature (see parameter 1.5.6 Boiler control logic ). 1.8 COOLING 1.8.0 Cooling mode activation Press the selector . Turn the selector to choose the desired item. 0 Provisioned - Not active. 1 Active. Press the selector to confirm. 1.8.2 Cooling FlowT HP Offset Defines the value in °C to be subtracted from the delivery setpoint temperature of the heat pump to offset the heat losses along the hydraulic connections between the outdoor unit and the hydraulic module. 1.8.3 Humidity Control Threshold Define the Threshold to activate the Humidity Alarm if at least one zone reports a humidity over the value. Defines the humidity percentage value beyond which the humidistat alarm will be generated (see Par. 1.2.0 AUX output 1). 1.8.4 Humidity Control Hysteresis Define the Hysteresis to de-activate the Humidity Alarm if zones report a humidity under the value – hysteresis. Defines the hysteresis percentage value for resetting the humidistat alarm (see Par. 1.2.0 AUX output 1 - 1.8.3 Humidity Control Threshold). 49 / EN