AHI Carrier Catalog | Page 403

HIGH-TEMPERATURE AIR-TO-WATER HEAT PUMPS  61AF 014-019 Available system pressure for units with pump The available pressure curves for the 61AF units are given for the maximum variable speed. Data applicable for: - Fresh water 20 °C - In case of use of glycol, the maximum water flow is reduced. Condenser water flow rate, l/s 61AF Minimum Maximum* 014-7 0.2 1.1 014-9 0.2 1.1 019 0.3 1.3 * Maximum flow rate at a water temperature difference of 3 K in the plate heat ­exchanger 61AF 014 61AF 019 80 80 014 - 100% 014 - 100% 70 70 014 - 80% 014 - 80% 014 - 50% Available pressure, kPa 60 50 40 30 20 60 50 40 30 20 10 10 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.2 Water flow rate, l/s 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 Water flow rate, l/s 61AF 014 (speed 1) 61AF 014 (speed 2) 61AF 014 (speed 3): selected 1 2 3 61AF 019 (speed 1) 61AF 019 (speed 2) 61AF 019 (speed 3): selected CONTROLS AIR TREATMENT 1 2 3 0.3 HEATING Available pressure, kPa 014 - 50% C A R R I E R 2 0 1 6 / 2 0 1 7 403