Multiflow Horizontal and Vertical discharge range of Roof units utilize an adjustable pitch mixed flow impeller, providing for a broad range of general ventilation applications. There are 7 standard sizes from 315mm to 630mm diameter. All units are suitable for operating temperatures of up to +50 °C. Construction The AMS range of roof units are precision manufactured from glass fibre re-enforced polyester resin giving a strong yet lightweight construction. The cowls have been aerodynamically designed to produce the minimum possible resistance to airflow whilst offering full protection against the weather. The impeller is an unique adjustable pitch mixed flow impeller with blade angles factory set to meet required duties. Motors Motors are metric pad mounted, with Class F insulation to BS4999 Part 101 and IEC 34-1, all weather proofed to IP55. Electrical inputs 220 -240V - 1Ph - 50Hz or 380 - 415 - 3Ph - 50 Hz. Soaker sheets Soaker sheets are available in most modern roof profiles complete with intergral upstands. Selection procedure The units are selected off standard Multiflow curves allowing a K factor of 1.25. |