Nimbus Plus M NET R32 Installation Manual UK

Commissioning 1.3.2 ECO

Commissioning 1.3.2 ECO / COMFORT Defines the start-up delay of the integration heating elements from most economical/ecological (longer delay time) to most comfortable (shorter delay time). Press the selector . Turn the selector to choose the desired item. 0 Eco Plus: 1 Eco: 2 Medium: 3 Comfort: 4 Comfort Plus: 5 Customizable: Press the selector to confirm. 1.3.3 Delay timer The parameter is used when 1.3.2 ECO / COMFORT = 5 (custom). Defines the minutes to wait before the integration sources get involved by the Energy Manager. 1.3.4 Release integral threshold The parameter is used when 1.3.2 ECO / COMFORT = 5 (custom). Defines the threshold for the release integral used by the energy manager to activate the integration sources. 1.3.5 Reset integral threshold The parameter is used when 1.3.2 ECO / COMFORT = 5 (custom). Defines the threshold for the reset integral used by the energy manager to deactivate the integration sources. 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: during DHW cycles the auxiliary sources (output auxiliary contacts or heating elements) can activate both in integration mode together with the heat pump and also if the heat pump is unavailable. 1 HP failure backup: during DHW cycles the auxiliary sources (output auxiliary contacts or heating elements) can activate only if the heat pump is unavailable. a If there are no back-up energy sources or if the back-up energy sources are disabled (Par. 1.4.1 DHW active resistance stages), the anti-Legionella cycle might not be completed. Press the selector to confirm. 1.4.1 DHW active resistance stages Defines the number of active stages of the integration heating element in DHW mode. Press the selector . Turn the selector to choose the desired item. 0 0 Stage: 1 1 Stage: 2 2 Stages: 3 3 Stages: NOTE: if set to 0 and there is no other auxiliary energy source, comfort during the DHW mode is not guaranteed. 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. 1.4.3 Release integral threshold Activation threshold for DHW integration expressed in °C x min. 1.4.4 Tank electric heater Selection of the operating logic of the integration heating element immersed in the DHW cylinder. The use of this heating element precludes the use of any heating elements present in the hydraulic module in DHW mode. Press the selector . Turn the selector to choose the desired item. 0 Absent. 1 Disabled: heating element present but disabled. 2 Alone electric heater: the heat pump is not used in DHW mode. Only the heating element heats the DHW cylinder. 3 Auxiliary: The heat pump and heating element both contribute to reaching the DHW set-point on the cylinder. If there are any cooling/heating requests, they are fulfilled in priority mode by the heat pump, except below the temperature threshold defined by parameter 1.4.6 DHW high priority temp. threshold . Press the selector to confirm. 1.4.6 DHW high priority temp. threshold Defines the DHW cylinder temperature below which both the heat pump and the heating element switch on together when Par. 1.4.4 Tank electric heater Heating element in DHW cylinder is set to 3 (Auxiliary). Press the selector . Turn the selector to choose the desired item. Press the selector to confirm. 48 / EN

Commissioning 1.5 ENERGY MANAGER PARAMETER 1 1.5.0 Min pressure Indicates the pressure value below which the system stops. 1.5.1 Warning pressure Indicates the pressure value below which it is advisable to fill the system. 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. 1.5.5 External temperature correction Compensation of the temperature reading of the external sensor. 1.5.9 Filling pressure Indicated pressure value for system filling. 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. 1.8 COOL 1.8.0 Cooling mode activation Press the selector . Turn the selector to choose the desired item. 0 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 alarm 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 alarm 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 alarm threshold). 1.9 HOT WATER 1.9.0 DHW comfort setpoint temp. Defines the comfort DHW set-point temperature. 1.9.1 DHW reduced setpoint temp. Defines the reduced DHW set-point temperature. EN / 49