AristonThermoUK
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1 year ago
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Nimbus M NET R32 Hybrid Installation Manual UK

  • Text
  • Hea pump
  • Selector
  • Heating
  • Desired
  • Outdoor
  • Cooling
  • Electrical
  • Sensor
  • Buffer
  • Input
  • Connections
  • Nimbus
  • Hybrid
  • Installation
  • Manual
  • Wwwaristoncom

Hydraulic connections 4.

Hydraulic connections 4. Hydraulic connections Preliminary checks: – Check that the system has been cleaned; – Check that there are no impurities in the circuit water; – Check that compatible components are used (e.g. do not connect copper and steel to each other); – Check that the connection to the heating system has been made correctly; – check that the water supply distribution network pressure does not exceed 0.5 MPa (5 bar), otherwise install a pressure reducer at the system's intake; – check that a disconnect device with cock is installed between the system and the domestic water supply distribution network (if present); – check that the expansion vessel of the boiler is large enough to handle the amount of water in the system and, if necessary, install an additional expansion vessel; 4.1 Indoor unit hydraulic connections After the checks: – Connect the outdoor unit to the HYBRID MODULE at point A. – Connect the system delivery to the E fitting. – Connect the return from the system B to the outdoor unit fitting. – Connect an anti-freeze kit (optional) to protect the outdoor unit in the event of a power shortage or a malfunction. – Insert a filter on the outdoor unit inlet. A B C D E Delivery from outdoor unit Cold water return to outdoor unit Delivery from auxiliary generator Return to auxiliary generator Space heating flow 1 Flexible hoses kit (optional) 2 Dirt separator filter (not supplied) 3 Valve kit (optional) 4 Filter 5 Anti-freeze kit (optional) E D C A 2 3 4 5 B 1 Fig. 38 24 / EN

Hydraulic connections 4.1.1 Rated and minimum flow rate The minimum flow rate must always be guaranteed in all operating conditions. Model NIMBUS EXT R32 35 M NIMBUS EXT R32 50 M NIMBUS EXT R32 80 M & M-T NIMBUS EXT R32 120 M & M-T NIMBUS EXT R32 150 M & M-T Nominal flow rate [l/h] Minimum flow rate [l/h] Flow meter ON threshold [l/h] 600 430 390 860 430 390 1200 600 540 1550 770 702 1900 940 852 4.1.2 Available pressure Make sure that the available pressure is not lower than the head loss of the entire hydraulic system. The curves in the pictures below shown the available pressure on the flow from the outdoor unit. NIMBUS EXT R32 KPa 90 80 70 60 50 40 30 20 10 1 0 0 500 1000 1500 2000 2500 3000 3500 Fig. l/h39 2 3 1 35 M - 50 M 2 80 M - 80 M-T 3 120 M - 120 M-T - 150 M - 150 M-T Indoor unit head loss KPa 18 16 14 12 10 8 6 4 2 0 0 500 1000 1500 2000 2500 3000 l/h Fig. 40 It is possible to install a supplementary circulator pump if the one supplied is not powerful enough. For the electrical connections, refer to the paragraph "Electrical connections". a If thermostatic or zones valves are installed on all terminals, mount a by-pass to guarantee the minimum operating flow rate. Consult the table in the paragraph “Rated and minimum flow rate”. 25 / EN

MANUALS

AristonThermoUK
Views
1 year ago
Flag

Nimbus M NET R32 Hybrid Installation Manual UK

  • Text
  • Hea pump
  • Selector
  • Heating
  • Desired
  • Outdoor
  • Cooling
  • Electrical
  • Sensor
  • Buffer
  • Input
  • Connections
  • Nimbus
  • Hybrid
  • Installation
  • Manual
  • Wwwaristoncom

Hydraulic connections 4.

Hydraulic connections 4. Hydraulic connections Preliminary checks: – Check that the system has been cleaned; – Check that there are no impurities in the circuit water; – Check that compatible components are used (e.g. do not connect copper and steel to each other); – Check that the connection to the heating system has been made correctly; – check that the water supply distribution network pressure does not exceed 0.5 MPa (5 bar), otherwise install a pressure reducer at the system's intake; – check that a disconnect device with cock is installed between the system and the domestic water supply distribution network (if present); – check that the expansion vessel of the boiler is large enough to handle the amount of water in the system and, if necessary, install an additional expansion vessel; 4.1 Indoor unit hydraulic connections After the checks: – Connect the outdoor unit to the HYBRID MODULE at point A. – Connect the system delivery to the E fitting. – Connect the return from the system B to the outdoor unit fitting. – Connect an anti-freeze kit (optional) to protect the outdoor unit in the event of a power shortage or a malfunction. – Insert a filter on the outdoor unit inlet. A B C D E Delivery from outdoor unit Cold water return to outdoor unit Delivery from auxiliary generator Return to auxiliary generator Space heating flow 1 Flexible hoses kit (optional) 2 Dirt separator filter (not supplied) 3 Valve kit (optional) 4 Filter 5 Anti-freeze kit (optional) E D C A 2 3 4 5 B 1 Fig. 38 24 / EN

Hydraulic connections 4.1.1 Rated and minimum flow rate The minimum flow rate must always be guaranteed in all operating conditions. Model NIMBUS EXT R32 35 M NIMBUS EXT R32 50 M NIMBUS EXT R32 80 M & M-T NIMBUS EXT R32 120 M & M-T NIMBUS EXT R32 150 M & M-T Nominal flow rate [l/h] Minimum flow rate [l/h] Flow meter ON threshold [l/h] 600 430 390 860 430 390 1200 600 540 1550 770 702 1900 940 852 4.1.2 Available pressure Make sure that the available pressure is not lower than the head loss of the entire hydraulic system. The curves in the pictures below shown the available pressure on the flow from the outdoor unit. NIMBUS EXT R32 KPa 90 80 70 60 50 40 30 20 10 1 0 0 500 1000 1500 2000 2500 3000 3500 Fig. l/h39 2 3 1 35 M - 50 M 2 80 M - 80 M-T 3 120 M - 120 M-T - 150 M - 150 M-T Indoor unit head loss KPa 18 16 14 12 10 8 6 4 2 0 0 500 1000 1500 2000 2500 3000 l/h Fig. 40 It is possible to install a supplementary circulator pump if the one supplied is not powerful enough. For the electrical connections, refer to the paragraph "Electrical connections". a If thermostatic or zones valves are installed on all terminals, mount a by-pass to guarantee the minimum operating flow rate. Consult the table in the paragraph “Rated and minimum flow rate”. 25 / EN

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