NULITE FP-WA units are horizontal concealed ceiling fan coils. The casing is installed above a suspended ceiling or inside a service void, while conditioned air is delivered through grilles or short ducts. Only air terminals remain visible, supporting hotel, office, and design-sensitive interiors.
Nine models and three speeds
The FP-34WA to FP-238WA range provides 1.8–12.6 kW cooling and 2.7–18.9 kW heating at high fan speed. Three-speed airflow extends from 180 to 2380 m³/h, allowing capacity and acoustic performance to be balanced.
External static pressure options of 12, 30, and 50 Pa support grilles and short duct runs. Standard units consume 41–247 W, while high-static versions consume 45–273 W. Pressure selection must be based on calculated air-system resistance rather than duct length alone.
Construction
The three-row water coil uses copper tubes and aluminium fins with 2.2 mm spacing. Working pressure is specified as 1.2 MPa. Water and condensate connections are DN20, model water flow is 350–1460 kg/h, and hydraulic resistance is 15–45 kPa.
Applications
- hotel rooms, corridors, and serviced apartments;
- offices, meeting rooms, and administrative buildings;
- shops, restaurants, and public interiors;
- medical and educational rooms;
- projects where mechanical equipment must be concealed above the ceiling.
Design and service access
Design must calculate external static pressure, duct and grille area, air velocity, and sound levels. Filters, flexible connections where necessary, insulated piping and drain pans, balancing valves, and correctly sloped drainage should be provided. A suitably sized access panel is essential for filter removal and service of the fan, coil, and drain pan.
Specifications are taken from the manufacturer's brochure. Actual capacity depends on water and air temperatures, water flow, fan speed, and air-system resistance.
