AHI Carrier Catalog | Page 390

Operating limits Heat pump limits Depends on the heat pump selected Comfort module limits Indoor temperature 5-30°C Water temperature, cooling 4-18°C Water temperature, heating 20-80°C Pressure drops Pressure drop, comfort module HEATING Pressure, drop, kPa 50 45 40 35 30 25 20 15 10 5 0 0 500 1000 1500 2000 2500 Flow rate, l/h 3500 3000 4000 4500 5000 0 0.14 0.28 0.42 0.56 0.69 0.83 0.97 1.11 1.25 1.39 Flow rate, l/s Pressure drop, comfort module plus pump kit Head pressure, comfort module plus pump kit 80.0 30 25 20 15 10 5 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Flow rate, l/h Available static pressure, kPa Pressure, drop, kPa 35 70.0 60.0 1 50.0 2 40.0 30.0 20.0 3 10.0 0.0 0 0.14 0.28 0.42 0.56 0.69 0.83 0.97 1.11 1.25 1.39 0.00 0.10 0.20 0.30 0.40 Flow rate, l/s The pump kit is required when the available heat pump pressure is too low to cover the system pressure drop. The water pump in the heat pump will then be used to irrigate the comfort module buffer tank and the additional comfort module pump is used to distribute the heat from the comfort module buffer tank to the terminal units. 390 0.50 0.60 0.70 0.80 6 / 0.90 1.00 1.10 Water flow rate, l/s 1 High speed (ΔP-c 8) 2 Medium speed (ΔP-c 4) 3 Low speed (ΔP-c 1) C A R R I E R 2 0 1 2 0 1 7