Description of the system 2.2.2 Dimensions and weights Indoor unit (IDU) Weight [kg] NIMBUS WH M R32 31 NIMBUS WH-L M R32 29 716 mm Label Description Ø of fittings [inches] A System return 1 Z1 IN B C D E A B OUT Delivery from heat pump Return to heat pump 1 Domestic hot water flow (accessory) Z1 OUT System flow 1 F Safety valve drain 1 1 1 600 mm 358 mm Fig. 10 2.2.3 Hydraulic and drainage fittings E F A E 250 mm 202 mm 79 mm Z1 IN B C 74 mm 237 mm 309 mm 461 mm 538 mm A Fig. 11 B D OUT Z1 OUT C B Fig. 12 12 / EN
Description of the system 2.3 Operational limits The following diagrams show the limits of the heat pump. The temperature difference between the delivery and return of the plate heat exchanger must be between 5°C and 8°C. Operating limits for space heating Output water temperature (°C) 75 70 65 3 60 55 50 45 40 1 35 30 25 20 2 15 10 5 0 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 Outdoor air temperature (°C) Fig. 13 1 Operation without restrictions 2 Operation of the outdoor unit with possible capacity reduction 3 Operation with back-up heating element necessary 2.3.1 Compressor frequency table The maximum allowed frequency varies with the outdoor temperature. The values shown in the table refer to the following conditions: – Heating: air temperature < 0°C – Cooling: air temperature >30°C NIMBUS EXT R32 35 M 50 M 80 M & M-T 120 M & M-T 150 M & M-T Min frequency [Hz] 18 18 18 18 18 Max frequency (heating) 80 100 90 75 90 [Hz] Max frequency (cooling) [Hz] 65 80 70 57 70 2.4 Identification The indoor and outdoor units can be identified through the product identification plate marked with the serial number, model and main technical-performance characteristics. Indoor unit (IDU) Operating limits for cooling Output water temperature (°C) 25 (10;23) (43;23) 20 UF 15 FC 10 5 (10;5) (43;5) 0 0 5 10 15 20 25 30 35 40 45 50 Outdoor air temperature (°C) 1 Identification plate Outdoor unit (ODU) 1 Fig. 15 UF: FC: underfloor heating fan coil Fig. 14 Operating limits for indoor unit The indoor unit is designed for being installed only in indoor environments in which the following conditions occur: – Minimum temperature: 5°C – Maximum temperature: 30°C - R.H. 65% Operational limits – Minimum system water temperature: 5°C – Maximum system water temperature: 70°C 1 Identification plate 1 Fig. 16 EN / 13
Commissioning Parameter Description
Commissioning Parameter Description
a a a a a a a a a a Replacement par
Service - Automatic deaeration valv
Service 7.3 Error list The errors a
Service Inverter error Description
Decommissioning 8.2 Disposal The ma
Annexes 10. Annexes EN / 77
79
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Description of the system 2.2.2 Dimensions and weights Indoor unit (IDU) Weight [kg] NIMBUS WH M R32 31 NIMBUS WH-L M R32 29 716 mm Label Description Ø of fittings [inches] A System return 1 Z1 IN B C D E A B OUT Delivery from heat pump Return to heat pump 1 Domestic hot water flow (accessory) Z1 OUT System flow 1 F Safety valve drain 1 1 1 600 mm 358 mm Fig. 10 2.2.3 Hydraulic and drainage fittings E F A E 250 mm 202 mm 79 mm Z1 IN B C 74 mm 237 mm 309 mm 461 mm 538 mm A Fig. 11 B D OUT Z1 OUT C B Fig. 12 12 / EN
Description of the system 2.3 Operational limits The following diagrams show the limits of the heat pump. The temperature difference between the delivery and return of the plate heat exchanger must be between 5°C and 8°C. Operating limits for space heating Output water temperature (°C) 75 70 65 3 60 55 50 45 40 1 35 30 25 20 2 15 10 5 0 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 Outdoor air temperature (°C) Fig. 13 1 Operation without restrictions 2 Operation of the outdoor unit with possible capacity reduction 3 Operation with back-up heating element necessary 2.3.1 Compressor frequency table The maximum allowed frequency varies with the outdoor temperature. The values shown in the table refer to the following conditions: – Heating: air temperature < 0°C – Cooling: air temperature >30°C NIMBUS EXT R32 35 M 50 M 80 M & M-T 120 M & M-T 150 M & M-T Min frequency [Hz] 18 18 18 18 18 Max frequency (heating) 80 100 90 75 90 [Hz] Max frequency (cooling) [Hz] 65 80 70 57 70 2.4 Identification The indoor and outdoor units can be identified through the product identification plate marked with the serial number, model and main technical-performance characteristics. Indoor unit (IDU) Operating limits for cooling Output water temperature (°C) 25 (10;23) (43;23) 20 UF 15 FC 10 5 (10;5) (43;5) 0 0 5 10 15 20 25 30 35 40 45 50 Outdoor air temperature (°C) 1 Identification plate Outdoor unit (ODU) 1 Fig. 15 UF: FC: underfloor heating fan coil Fig. 14 Operating limits for indoor unit The indoor unit is designed for being installed only in indoor environments in which the following conditions occur: – Minimum temperature: 5°C – Maximum temperature: 30°C - R.H. 65% Operational limits – Minimum system water temperature: 5°C – Maximum system water temperature: 70°C 1 Identification plate 1 Fig. 16 EN / 13
Commissioning Parameter Description
Commissioning Parameter Description
a a a a a a a a a a Replacement par
Service - Automatic deaeration valv
Service 7.3 Error list The errors a
Service Inverter error Description
Decommissioning 8.2 Disposal The ma
Annexes 10. Annexes EN / 77
79
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