Nimbus Compact M NET R32 Installation Manual UK

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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. 15 1 Operation without restrictions 2 Operation of the outdoor unit with possible capacity reduction 3 Operation with back-up heating element necessary Operating limits for cooling Output water temperature (°C) 25 20 15 10 5 (10;23) (10;5) UF FC (43;23) (43;5) 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 M EXT <strong>R32</strong> 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 2.3.2 DHW Safety device intervention order To prevent excessively high temperatures and pressure inside the tank, the indoor unit is fitted with protection and control devices that will intervene in the following order: 1 Thermostatic control device: this device, consisting of a sensor positioned on the DHW tank, switches off the heat source once the programmed set-point has been reached. 2 Energy cut-out device: this device is a manual-reset thermostat and is positioned on the heating element of the technical circuit. The thermostat intervenes when a temperature of 85°C is reached. If it intervenes, it must be reset manually. 3 Temperature and pressure relief valve: the tank is fitted with a T&P relief valve that intervenes in case of overtemperature (90-95°C) or overpressure (7 bar). Whenever the valve intervenes, the water flow it discharges could have a very high temperature. 0 0 5 10 15 20 25 30 35 40 45 50 Outdoor air temperature (°C) UF: FC: underfloor heating fan coil Fig. 16 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 – Cylinder maximum operating pressure: 0.6 MPa (6 bar) – Maximum inlet pressure of the safety inlet assembly: 1.2 MPa (12 bar) – Hydraulic circuit maximum pressure: 0.3 MPa (3 bar) 14 / EN
Description of the system 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) 1 1 Identification plate Fig. 17 Outdoor unit (ODU) 1 1 Identification plate Fig. 18 EN / 15
Page 1 and 2: NIMBUS COMPACT UK M NET R32 3302561
Page 3 and 4: Contents 1. Safety advices 1.1
Page 5 and 6: a a a a a a a When connecting the c
Page 7 and 8: Safety advices 1.3 Symbols affixed
Page 9 and 10: Description of the system 2.1.2 Dim
Page 11 and 12: Description of the system 2.2 Indoo
Page 13: Description of the system 2.2.2 Dim
Page 17 and 18: Description of the system 2.5.1 Tec
Page 19 and 20: 3.2 Receiving the product The NIMBU
Page 21 and 22: Installation 3.3.4 Installation The
Page 23 and 24: Installation - Attach the tray usin
Page 25 and 26: Hydraulic connections 4. Hydraulic
Page 27 and 28: Hydraulic connections 4.1.5 Availab
Page 29 and 30: Hydraulic connections 4.2 Installat
Page 31 and 32: Hydraulic connections 4.3 Example o
Page 33 and 34: Electrical connections 5. Electrica
Page 35 and 36: Electrical connections 5.1 Outdoor
Page 37 and 38: Electrical connections 5.2 Indoor u
Page 39 and 40: IN G Electrical connections The cro
Page 41 and 42: Electrical connections 5.4 Installi
Page 43 and 44: Electrical connections Signal sendi
Page 45 and 46: Commissioning 6. Commissioning 6.1
Page 47 and 48: Commissioning 6.4 Basic functions T
Page 49 and 50: Commissioning 1.1.1 HV input 2 (inp
Page 51 and 52: Commissioning 1.2.2 AUX output 3 Pr
Page 53 and 54: Commissioning 1.5 ENERGY MANAGER PA
Page 55 and 56: Commissioning 1.12 TEST & UTILITIES
Page 57 and 58: Commissioning 1.23 DOMESTIC HOT WAT
Page 59 and 60: Commissioning In the graph below, t
Page 61 and 62: Commissioning 4.7.1 Room Influence
Page 63 and 64: Commissioning 6.9 Parameter table P
Page 65 and 66:
Commissioning Parameter Description
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
a a a a a a a a a a Replacement par
Page 73 and 74:
Service i - Automatic deaeration va
Page 75 and 76:
Service 7.3 Error list The errors a
Page 77 and 78:
Service Inverter error Description
Page 79 and 80:
Decommissioning 8.2 Disposal The ma
Page 81 and 82:
Annexes 10. Annexes EN / 81
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Nimbus Compact M NET R32 Installation Manual UK

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